Multi-color flexographic printing machine

Abstract

The utility model discloses a multicolor flexographic printing machine, which belongs to the technical field of flexographic printing machines, and comprises a rack, a plurality of groups of printing pieces are slidably connected in the rack, each printing piece comprises an ink box slidably arranged in the rack, an ink soaking roller is arranged above the ink box, and a scraper fixed on the ink box is arranged on one side of the ink soaking roller. An anilox roller, a printing plate roller and a pressing roller are sequentially arranged above the ink soaking roller, the two ends of the ink soaking roller, the anilox roller, the printing plate roller and the pressing roller are rotationally connected with supporting plates, connecting rods are fixed between the supporting plates and the ink box, a sliding groove is formed in the bottom of the rack, the ink box slides in the sliding groove, and a drying adsorption assembly is arranged between the two printing pieces. The drying adsorption assembly comprises a box body fixed in the rack, and a resistance heating plate is arranged in the box body; according to the multi-color flexographic printing machine, the multiple sets of printing pieces can independently move in the width direction of the rack, operation such as ink adding maintenance of each set of printing pieces is facilitated, needed printing color types can be freely adjusted and controlled, and operation and use are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexographic printing machines, in particular to a multi-color flexographic printing machine. Background Art

[0002] Flexographic printing presses use highly fluid inks. The ink is transferred from the ink cartridge and the anilox roller to the image and text part of the printing plate and then applied with printing pressure by the printing roller to transfer the ink on the printing plate to the substrate. Finally, the printing process is completed by drying the surface. At present, the anilox roller and the plate roller are driven by a transmission shaft through a gear transmission system. When a multi-color printing line is composed of multiple sets of printing press color groups, multiple transmission shafts are used to connect the flexographic printing press color groups used for printing in different colors.

[0003] Therefore, for a multi-color flexographic printing machine, multiple printing units are provided. In the prior art, after the multiple printing units are connected, it is not convenient to dismantle any one of the printing units as a single unit, so maintenance is inconvenient. In addition, no drying or other structure for drying the ink is provided between the multiple printing units. When moving from one printing unit to the next, if there is undried ink, it will affect the next printing, resulting in low printing quality. Utility Model Content

[0004] The utility model aims to provide a multi-color flexographic printing machine, which is provided with multiple groups of printing pieces. Different colors of ink are added to the ink cartridge inside each group of printing pieces, and multi-color printing is gradually performed. At the same time, each group of printing pieces can be independently moved along the width direction of the frame, which is convenient for operations such as maintenance and inking of each group of printing pieces, and the required printing color types can be freely adjusted, which is convenient for operation and use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-color flexographic printing machine, comprising a frame, a plurality of groups of printing parts slidably connected inside the frame, the printing part comprising an ink cartridge sliding inside the frame, an ink immersion roller is provided above the ink cartridge, a scraper fixed on the ink cartridge is provided on one side of the ink immersion roller, an anilox roller, a printing plate roller and a pressure roller are sequentially provided above the ink immersion roller, support plates are rotatably connected at both ends of the ink immersion roller, a connecting rod is fixed between the support plate and the ink cartridge, a slide groove is provided at the bottom of the frame for the ink cartridge to slide, a drying and adsorption assembly is provided between the two groups of printing parts, the drying and adsorption assembly comprises a box body fixed inside the frame, and a resistance heating plate is provided inside the box body.

[0006] Furthermore, both ends of the frame are rotatably connected with feed rollers and discharge collection rollers.

[0007] Furthermore, a through groove is provided on the side of the frame for the support plate to slide, a baffle is fixed on the side of the through groove, an airbag is fixed inside the baffle, one end of the airbag is connected to an air inlet, and the other end is connected to an air outlet, both the air inlet and the air outlet extend out of the baffle, a first control valve is fixed to the end of the air inlet away from the baffle, and a second control valve is fixed to the end of the air outlet away from the baffle.

[0008] Furthermore, a plurality of plug-in rods are fixed to the support plate near the baffle side, and the plug-in rods are inserted into the baffle.

[0009] Furthermore, the drying adsorption assembly also includes an adsorption plate fixed on the side of the box body, the adsorption plate is hollow inside, the top of the adsorption plate is connected to a derivation pipe, the derivation pipe is connected to an exhaust pump at the end away from the box body, a bracket is screwed to the bottom of the exhaust pump, and the bracket is fixed to the side of the frame.

[0010] Furthermore, a pull rod is fixed to the side of the support plate, and a rubber sleeve is sleeved on the outside of the pull rod.

[0011] The beneficial effects of the utility model are:

[0012] The multi-color flexographic printing machine is equipped with multiple groups of prints. Different colors of ink are added to the ink cartridges inside each group of prints, and multi-color printing is performed step by step. At the same time, each group of prints can be moved independently along the width direction of the frame, which is convenient for maintenance and inking of each group of prints, and the required printing color types can be freely adjusted, which is convenient for operation and use. 2. An airbag structure is set up to fix the plug-in rod on the support plate, which can automatically fix the support plate for easy operation.

[0013] 3. A drying adsorption part is set between every two groups of prints, and heat is provided by a resistance heating plate. After passing a group of prints, the paper below can be heated and dried by the resistance heating plate, thereby preventing the undried ink from mixing with the next printing ink, thereby improving the printing quality. In addition, an adsorption plate is fixed on the side of the box, and a vacuum pump is used to adsorb dry ink particles on the paper that may exist due to drying, thereby further improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a multi-color flexographic printing machine provided by the utility model;

[0015] Figure 2 The utility model provides a multi-color flexographic printing machine Figure 1 Schematic diagram of a top-down perspective;

[0016] Figure 3 The utility model provides Figure 1 The enlarged schematic diagram at A in the middle;

[0017] Figure 4 The utility model provides Figure 2Schematic diagram of the AA line section.

[0018] In the figure: 1. frame; 2. ink cartridge; 3. ink impregnation roller; 4. scraper; 5. anilox roller; 6. plate roller; 7. pressure roller; 8. support plate; 9. slide; 10. box; 11. resistance heating plate; 12. feed roller; 13. discharge collection roller; 14. through groove; 15. baffle; 16. air bag; 17. air inlet; 18. air outlet; 19. first control valve; 20. second control valve; 21. plug-in rod; 22. adsorption plate; 23. outlet pipe; 24. vacuum pump; 25. bracket; 26. pull rod; 27. rubber sleeve. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] Please also refer to Figures 1 to 4 The multi-color flexographic printing machine of the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, the multi-color flexographic printing machine includes a frame 1, and a plurality of groups of printing parts are slidably connected inside the frame 1. The printing parts include an ink cartridge 2 sliding inside the frame 1, an ink immersion roller 3 is provided above the ink cartridge 2, and a scraper 4 fixed on the ink cartridge 2 is provided on one side of the ink immersion roller 3, and an anilox roller 5, a printing plate roller 6 and a pressure roller 7 are sequentially provided above the ink immersion roller 3, and support plates 8 are rotatably connected at both ends of the ink immersion roller 3, a connecting rod is fixed between the support plate 8 and the ink cartridge 2, a slide groove 9 is provided at the bottom of the frame 1 for the ink cartridge 2 to slide, and a drying adsorption component is provided between the two groups of printing parts, and the drying adsorption component includes a box body 10 fixed inside the frame 1, and a resistance heating plate 11 is provided inside the box body 10.

[0022] Both ends of the frame 1 are also rotatably connected with a feed roller 12 and a discharge collection roller 13 .

[0023] In this embodiment, the paper is introduced into the entire flexographic printing machine by the feed roller 12, and multiple groups of printing pieces are provided. Different colors of ink are added to the ink cartridge 2 inside each group of printing pieces, and multi-color printing is gradually performed.

[0024] Among them, a through groove 14 for the support plate 8 to slide is provided on the side of the frame 1, a baffle 15 is fixed on the side of the through groove 14, an air bag 16 is fixed inside the baffle 15, one end of the air bag 16 is connected to an air inlet 17, and the other end is connected to an air outlet 18, the air inlet 17 and the air outlet 18 both extend out of the baffle 15, a first control valve 19 is fixed to the end of the air inlet 17 away from the baffle 15, and a second control valve 20 is fixed to the end of the air outlet 18 away from the baffle 15.

[0025] A plurality of plug-in rods 21 are fixed to the support plate 8 near the baffle 15 , and the plug-in rods 21 are inserted into the baffle 15 .

[0026] Furthermore, each group of printed pieces can be independently moved along the width direction of the frame 1, which is convenient for maintenance and inking of each group of printed pieces, and the required printing color type can be freely adjusted, which is convenient for operation and use.

[0027] A pull rod 26 is fixed on the side of the support plate 8, and a rubber sleeve 27 is sleeved on the outside of the pull rod 26. The support plate 8 can be pulled to slide along the slide groove 9 through the pull rod 26, and its sliding direction moves along the side away from the baffle 15. When the support plate 8 hits the baffle 15, the entire print is completely inserted into the frame 1. At this time, the plug-in rod 21 on the side of the support plate 8 is inserted into the baffle 15 to fix the entire print. After the plug-in rod 21 is inserted into the baffle 15, the plug-in rod 21 is wrapped by the airbag 16. By opening the first control valve 19, the air inlet 17 is connected to an external air supply device, and the airbag 16 is inflated through the air supply device through the air inlet 17, so that the plug-in rod 21 is hit and clamped; when the support plate 8 needs to be pushed out, the second control valve 20 is opened, and the gas inside the airbag 16 is discharged along the air outlet 18, and the plug-in rod 21 is contacted and fixed, so that the support plate 8 is pushed out.

[0028] As an embodiment, the drying adsorption assembly also includes an adsorption plate 22 fixed on the side of the box body 10. The adsorption plate 22 is hollow inside. A derivation pipe 23 is connected to the top of the adsorption plate 22. The derivation pipe 23 is connected to an exhaust pump 24 at the end away from the box body 10. A bracket 25 is fixed to the bottom of the exhaust pump 24 with screws. The bracket 25 is fixed to the side of the frame 1.

[0029] A drying adsorption member is further provided between every two groups of printed parts, and heat is specifically provided by a resistance heating plate 11. After passing a group of printed parts, the paper below can be heated and dried by the resistance heating plate 11, thereby preventing the undried ink from mixing with the ink for the next printing, thereby improving the printing quality. An adsorption plate 22 is fixed to the side of the box body 10, and a vacuum pump 24 is used to adsorb dry ink particles that may exist on the paper due to drying, thereby further improving the printing quality.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-color flexographic printing machine, characterized in that: The invention comprises a frame (1), wherein a plurality of groups of printing parts are slidably connected inside the frame (1), wherein the printing parts comprise an ink cartridge (2) which slides inside the frame (1), an ink immersion roller (3) is arranged above the ink cartridge (2), a scraper (4) fixed on the ink cartridge (2) is arranged on one side of the ink immersion roller (3), an anilox roller (5), a printing plate roller (6) and a pressing roller (7) are arranged in sequence above the ink immersion roller (3), a support plate (8) is rotatably connected at both ends of the ink immersion roller (3), a connecting rod is fixed between the support plate (8) and the ink cartridge (2), a slide groove (9) is arranged at the bottom of the frame (1) for the ink cartridge (2) to slide, a drying adsorption component is arranged between the two groups of printing parts, and the drying adsorption component comprises a box body (10) fixed inside the frame (1), and a resistance heating plate (11) is arranged inside the box body (10).

2. The multi-color flexographic printing machine according to claim 1, characterized in that: Both ends of the frame (1) are also rotatably connected with a feed roller (12) and a discharge collection roller (13).

3. The multi-color flexographic printing machine according to claim 1, characterized in that: The frame (1) is provided with a through groove (14) on the side of the support plate (8) for sliding, a baffle (15) is fixed on the side of the through groove (14), an air bag (16) is fixed inside the baffle (15), one end of the air bag (16) is connected to an air inlet (17), and the other end is connected to an air outlet (18), the air inlet (17) and the air outlet (18) both extend out of the baffle (15), a first control valve (19) is fixed to the end of the air inlet (17) away from the baffle (15), and a second control valve (20) is fixed to the end of the air outlet (18) away from the baffle (15).

4. The multi-color flexographic printing machine according to claim 3, characterized in that: A plurality of plug-in rods (21) are fixed to the support plate (8) on the side close to the baffle plate (15), and the plug-in rods (21) are inserted into the interior of the baffle plate (15).

5. The multi-color flexographic printing machine according to claim 1, characterized in that: The drying adsorption assembly also includes an adsorption plate (22) fixed to the side of the box body (10), the adsorption plate (22) is hollow inside, the top of the adsorption plate (22) is connected to a guide pipe (23), the end of the guide pipe (23) away from the box body (10) is connected to an air pump (24), the bottom of the air pump (24) is screwed with a bracket (25), and the bracket (25) is fixed to the side of the frame (1).

6. The multi-color flexographic printing machine according to claim 1, characterized in that: A pull rod (26) is fixed to the side of the support plate (8), and a rubber sleeve (27) is sleeved on the outside of the pull rod (26).

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