CN103029418A - Horizontal feeding unit type flexographic printing machine - Google Patents

Abstract

The present invention discloses a horizontal feeding unit type flexographic printing machine, comprising a feeding unit, a feeding traction unit, a plurality of printing units arranged in a straight line, a drying unit, a discharging traction unit and a winding unit, the printing unit comprises a printing plate roller and a printing roller respectively arranged on both sides of the printing paper, the feeding side of the printing plate roller is provided with an anilox roller, and the paper discharging end of the printing unit is provided with an adsorption device for maintaining the stability of the printing paper tension. The present invention adopts a horizontal feeding method, eliminating the factors affecting the printing quality due to the resistance and precision of the mechanical equipment itself, thereby achieving high-speed printing and high-quality printed product quality, the adsorption device makes the printing paper transmission stable and fast, overcomes the influence of tension fluctuation and unstable feeding on the overprint quality of the printed product, thereby achieving high-precision overprint quality; at the same time, the negative pressure wind in the adsorption box has a certain drying effect on the printing paper, which can reduce the feeding length and save the space occupied by the equipment.

Description

Horizontal feeding unit type flexographic printing machine

【Technical field】

The invention relates to a flexographic printing machine, in particular to a horizontal feeding unit type flexographic printing machine, which belongs to the technical field of printing.

【Background technique】

The existing unit-type flexo printing machine adopts the curved feeding method of drying while printing. Each color group has a separate drying unit. After printing and drying, the printed matter enters the next printing unit for printing. In this way, the printing speed is low, and the quality of the printed product is average. To increase the printing speed, the drying length must be lengthened enough, so that the feeding route becomes longer, and at the same time, the friction resistance of the machine is increased, and the cumulative error of the mechanical precision also increases. Increase the size, the longer the path, the worse the color registration accuracy will be due to the influence of mechanical precision and mechanical resistance, and it will be difficult to ensure the quality of printed products.

【Content of invention】

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a horizontal linear feeding unit with stable printing paper force and stable feeding, so as to realize high speed of equipment and high quality of printed products. Flexo printing presses.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A flexographic printing machine with a horizontal feeding unit, including a discharging unit, a feeding traction unit, several printing units arranged in a straight line, a drying unit, a discharging traction unit and a winding unit arranged in sequence, and it is characterized in that the The printing unit includes a printing plate roller and a printing roller that are respectively arranged on both sides of the printing paper. Equipped with an adsorption device to keep the printing paper force stable.

The above-mentioned horizontal feeding unit type flexographic printing machine is characterized in that the suction device includes a suction box with an opening adjacent to the back of the printing paper, and a negative pressure fan is connected to the suction box.

The above-mentioned horizontal feeding unit type flexographic printing machine is characterized in that the paper paths of the printing paper in a plurality of printing units are in a straight line, and feeding brackets are provided between adjacent printing units, so that The above-mentioned adsorption box is arranged on the material-feeding support.

The above-mentioned horizontal feeding unit type flexographic printing machine is characterized in that the end surface of the printing paper on the suction box and the surface of the printing paper on the printing roller are in the same plane.

The above-mentioned horizontal feeding unit type flexographic printing machine is characterized in that the printing unit also includes a support for horizontal transmission of printing paper, the printing plate roller is arranged above the support, and the printing plate The roller is arranged under the support, and the feeding side of the anilox roller is provided with a scraper.

The flexographic printing machine with horizontal feeding unit as described above is characterized in that the scraper is a closed scraper.

The above-mentioned horizontal feeding unit type flexo printing machine is characterized in that the centers of the printing plate roller and the printing roller are on a straight line, the centers of the printing plate roller and the anilox roller are on a straight line, and the The straight line where the center of circle of the printing plate roller and the anilox roller is located is perpendicular to the straight line where the center of circle of the printing plate roller and the printing roller is located.

Compared with the prior art, the present invention has the following advantages:

The present invention adopts the method of printing first and then centralized drying. There are adsorption devices and feeding support devices between the printing units. After the printing is finished, a centralized high-power final drying bellows is installed. The horizontal feeding method is adopted, so that The feeding path is greatly shortened. Compared with the conventional unit printing machine, the influence factors of the resistance and precision of the mechanical equipment itself on the printing quality are eliminated, so as to achieve high-speed printing and high-quality printing quality.

The printing units of the present invention are arranged in a straight line, and the paper output end of the printing unit is provided with an adsorption device to keep the paper force stable, so that the printing paper can be transported stably and quickly, and the influence of tension fluctuation and unstable material feeding on the overprint quality of the printed product can be overcome. In order to achieve high-precision overprint quality; at the same time, the negative pressure wind in the adsorption box has a certain drying effect on the printing paper, which can reduce the length of the material and save the space occupied by the equipment.

【Description of drawings】

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural diagram of the printing unit and the adsorption device.

【Detailed ways】

The present invention is described in detail below in conjunction with accompanying drawing:

As shown in Figure 1-2, a flexo printing machine with horizontal feeding unit includes a feeding unit 1, a feeding traction unit 2, several printing units 3 arranged in a straight line, a drying unit 5, and a discharging unit arranged in sequence. The traction unit 6 and the winding unit 7, the printing unit 3 include a printing plate roller 31 and a printing roller 32 respectively arranged on both sides of the printing paper, and the feeding side of the printing plate roller 31 is provided with an anilox roller tangential to the printing plate roller 31 33. The paper output end of the printing unit 3 is provided with an adsorption device 4 to keep the strength of the printing paper stable.

The adsorption device 4 includes an adsorption box 41 with an opening attached to the back of the printing paper. The suction box 41 is connected with a negative pressure fan. The adsorption device 4 can keep the printing paper force stable and improve the stability of the material feeding, thereby further improving the feeding efficiency. material speed and print quality; on the other hand, the suction of the negative pressure fan of the adsorption device 4 can further help the prints from the previous printing unit to dehumidify, and play the effect of one wind and two uses.

The paper path of the printing paper in the plurality of printing units 3 is in a straight line, and the feeding support 8 is arranged between adjacent printing units, and the adsorption box 41 is arranged on the feeding support 8, and the adsorption box 41 is connected to the previous printing unit. The paper output end of unit 3 and the paper input end of the next printing unit 3.

The end surface of the printing paper on the suction box 41 and the surface of the printing paper on the printing roller 32 are in the same plane.

The printing unit 3 also includes a support 30 for the horizontal transmission of the printing paper, the plate roller 31 is arranged above the support 30, the printing roller 32 is arranged below the support 30, and the feeding side of the anilox roller 33 is provided with a scraper 34, which scraper 34 is a closed scraper. In the present invention, each printing unit 3 is an independent printing unit, and the support 30 is also independent and self-contained like the printing unit. The printing unit 3 and the support 30 can be reduced or increased as required, and the installation and disassembly are easy.

The present invention can make the center of circle of printing plate roller 31 and printing roller 32 be on a straight line, the circle center of printing plate roller 31 and anilox roller 33 is on a straight line, and the straight line where the circle center of printing plate roller 31 and anilox roller 33 is perpendicular to The center of circle of the printing plate roller 31 and the printing roller 32 is on a straight line.

Claims (7)

1. a level walks to expect the set type flexible printing machine, comprise the blowing unit (1) that sets gradually, pan feeding traction unit (2), several printing elements arranged in a straight line (3), drying unit (5), discharging traction unit (6) and rolling unit (7), it is characterized in that: described printing element (3) comprises the forme roller (31) that is separately positioned on the printing paper two sides and the roller of undertaking the printing of (32), the feed side of described forme roller (31) is provided with the anilox roll (33) tangent with described forme roller (31), and the paper delivery end of described printing element (3) is provided with and keeps the stable adsorbent equipment (4) of printing paper tension force.

2. level according to claim 1 walks to expect the set type flexible printing machine, it is characterized in that described adsorbent equipment (4) comprises the adsorption box (41) that an opening and the printing paper back side are affixed, and described adsorption box is connected with negative-pressure air fan on (41).

3. level according to claim 2 walks to expect the set type flexible printing machine, it is characterized in that printing the paper road trend of paper in a plurality of described printing elements (3) is in line, be provided with away material support (8) between the adjacent described printing element, described adsorption box (41) is arranged on describedly to be walked to expect on the support (8).

4. level according to claim 2 walks to expect the set type flexible printing machine, it is characterized in that on the described adsorption box (41) seal paper the seal paper institute on end face and the described roller of undertaking the printing of (32) through the surface in same plane.

5. each described level walks to expect the set type flexible printing machine according to claim 1-4, it is characterized in that described printing element (3) also comprises the support (30) for the horizontal transmission of seal paper, described forme roller (31) is arranged on the top of described support (30), the described roller of undertaking the printing of (32) is arranged on the below of described support (30), and the feed side of described anilox roll (33) is provided with scraper (34).

6. level according to claim 5 walks to expect the set type flexible printing machine, it is characterized in that described scraper (34) is closed scraper.

7. each described level walks to expect the set type flexible printing machine according to claim 1-4, it is characterized in that the center of circle of described forme roller (31) and the roller of undertaking the printing of (32) point-blank, the center of circle of described forme roller (31) and anilox roll (33) point-blank, place, the center of circle straight line of described forme roller (31) and anilox roll (33) is perpendicular to place, the center of circle straight line of described forme roller (31) and the roller of undertaking the printing of (32).

Images