Cleaning mechanism for paper packaging box intaglio printing equipment

Abstract

The utility model relates to the technical field of gravure printing cleaning, in particular to a cleaning mechanism for paper packaging box gravure printing equipment, which comprises a mounting frame, a cleaning driving mechanism is fixedly mounted on the outer side of the mounting frame, and a cam is sleeved on one side, far away from a second gear, of a connecting shaft; the printing device has the beneficial effects that a printing roller is driven to rotate through a first motor, first gears on the two sides are driven to rotate, cams on the two sides are driven to rotate through meshing connection of the first gears and second gears, the surfaces of the cams on the two sides make contact with the surface of a rolling wheel, a spring is connected between a cleaning frame and a fixing frame, and the cleaning effect is improved by means of compression and stretchability of the spring; the cleaning frame is driven to clean ink on the surface of the ink scraping plate, so that a scraping piece and a sweeping brush in the cleaning frame clean the surface of the ink scraping plate, dirt adhering to the ink scraping plate is reduced, ink scraping knife lines appearing on paper packaging box printing patterns due to the dirt are effectively reduced, and the printing quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of gravure printing cleaning mechanisms, in particular to a cleaning mechanism for gravure printing equipment for paper packaging boxes. Background Art

[0002] Gravure printing is a direct printing method that covers the entire surface of the printing plate with ink, then uses a special scraper mechanism to remove the ink from the blank area, leaving the ink only in the cells of the graphic part. Then, under greater pressure, the ink is transferred to the surface of the substrate to obtain a printed product. It is an ink-pressing method that directly presses the ink contained in the gravure pits onto the substrate.

[0003] In the prior art, the cleaning mechanism of the gravure printing equipment usually uses a scraper to remove excess ink from the surface of its printing roller, so that the ink only exists in the engraved gravure, and then a pressing roller is used to press it down, and the ink in the gravure is printed on the surface of the paper packaging box.

[0004] However, after the traditional scraper blade cleaning mechanism has been working for a period of time, dirt is easily adhered to the surface of the scraper blade and is difficult to clean. As a result, after the scraper blade cleans the printing roller, excess ink knife lines are easily formed on the surface of the printing material, which greatly affects the printing quality of the paper packaging boxes of the printing equipment and has limited applicability. Utility Model Content

[0005] The purpose of the utility model is to provide a cleaning mechanism for gravure printing equipment for paper packaging boxes, so as to solve the problem that the traditional scraper cleaning mechanism proposed in the above background technology is that after the scraper has been working for a period of time, dirt is easily adhered to the surface of the scraper and it is difficult to clean, resulting in excess ink knife lines on the surface of the printing material after the scraper cleans the printing roller, which greatly affects the printing quality of the paper packaging boxes of the printing equipment.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a cleaning mechanism for gravure printing equipment for paper packaging boxes, comprising: a mounting frame, a cleaning drive mechanism fixedly mounted on the outer side of the mounting frame, the cleaning drive mechanism comprising: a first motor, a rotating shaft fixedly mounted on the output end of the first motor, a printing roller connected to the rotating shaft passing through the rotating shaft near the center end, a first gear sleeved on both sides of the rotating shaft away from the printing roller, a second gear meshedly connected to the side surface of the first gear, a connecting shaft rotatably connected to the side end surface of the second gear, and a cam sleeved on the side of the connecting shaft away from the second gear;

[0007] A fixing frame is fixedly installed on the inner side of the mounting frame, and a scraper is provided on the side of the fixing frame close to the printing roller. A cleaning device is sleeved on the scraper. The cleaning device includes: a cleaning frame, and a roller is rotatably connected to the side of the cleaning frame close to the connecting shaft. A spring is provided between the fixing frame and the cleaning frame.

[0008] Preferably, a bracket is fixedly mounted on one side of the cleaning frame close to the connecting shaft, a pin is provided on the side surface of the bracket, and the roller is rotatably connected via the pin.

[0009] Preferably, the rollers and the cams are symmetrically arranged in two groups, and the side surfaces of the rollers are in contact with the cams.

[0010] Preferably, symmetrically arranged scraping blades are fixedly mounted on both the upper and lower inner walls of the cleaning frame, and the sides of the scraping blades that are close to each other are in contact with the ink scraper.

[0011] Preferably, a cleaning brush is provided on the side of the scraper blade close to the printing roller, and the cleaning brush is fixedly connected to the inner wall of the cleaning frame.

[0012] Preferably, a cleaning sponge is provided on one side of the scraper sheet away from the cleaning brush, and the cleaning sponge is respectively bonded to the upper and lower inner walls of the cleaning frame.

[0013] Preferably, grooves are provided on both sides of the cleaning frame, and the scraper is fixedly connected to the fixing frame through the grooves.

[0014] Preferably, a second motor is fixedly connected to the outer side of the mounting frame, a lower pressure roller is fixedly connected to the output end of the second motor, and an ink cartridge is provided on the bottom surface of the mounting frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a cleaning mechanism for gravure printing equipment of paper packaging boxes;

[0017] The printing roller is rotated by the first motor, driving the first gears on both sides to rotate, and the cams on both sides are rotated by the meshing connection between the first gear and the second gear. The surfaces of the cams on both sides are in contact with the surface of the roller, and a spring is connected between the cleaning frame and the fixed frame. The compression and stretching of the spring drive the cleaning frame to clean the ink on the surface of the scraper, so that the scraper sheet and the cleaning brush in the cleaning frame clean the surface of the scraper, reducing dirt adhering to the scraper, effectively reducing the scraper lines on the printed pattern of the paper packaging box caused by dirt, and improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the cleaning device of the present utility model;

[0020] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is an internal cross-sectional view of the cleaning frame of the present invention.

[0022] In the figure: 1 mounting frame, 2 first motor, 3 printing roller, 4 second motor, 5 lower pressure roller, 6 rotating shaft, 7 first gear, 8 second gear, 9 connecting shaft, 10 cam, 11 bracket, 12 roller, 13 pin, 14 fixing frame, 15 scraper, 16 spring, 17 cleaning frame, 18 cleaning brush, 19 scraper, 20 cleaning sponge, 21 slot, 22 ink cartridge. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 , the utility model provides a technical solution: a cleaning mechanism for gravure printing equipment for paper packaging boxes; Example

[0025] In order to clean the ink and adhered dirt on the surface of the scraper 15, a rotating shaft 6 is fixedly installed at the output end of the first motor 2, and the rotating shaft 6 is connected to the printing roller 3 near the center end. The rotating shaft 6 is sleeved with a first gear 7 on both sides away from the printing roller 3, and the side surface of the first gear 7 is meshed and connected with the second gear 8. The side end surface of the second gear 8 is rotatably connected to the connecting shaft 9, and the side of the connecting shaft 9 away from the second gear 8 is sleeved with a cam 10. A fixing frame 14 is fixedly installed on the inner side of the mounting frame 1, and a scraper 15 is provided on the side of the fixing frame 14 close to the printing roller 3. A cleaning device is sleeved on the scraper 15, and the cleaning device includes: a cleaning frame 17, a roller 12 is rotatably connected to the side of the cleaning frame 17 close to the connecting shaft 9, a spring 16 is provided between the fixing frame 14 and the cleaning frame 17, and the cleaning frame 17 is provided with a spring. Symmetrically arranged scraper blades 19 are fixedly installed on the inner walls of the upper and lower sides. The sides of the scraper blades 19 that are close to each other are in contact with the ink scraper plate 15. The printing roller 3 is rotated by the first motor 2, driving the first gear 7 on both sides to rotate. The cams 10 on both sides are rotated by the engagement connection between the first gear 7 and the second gear 8. The surfaces of the cams 10 on both sides are in contact with the surface of the roller 12, and a spring 16 is connected between the cleaning frame 17 and the fixed frame 14. Relying on the compression and stretchability of the spring 16, the cleaning frame 17 is driven to clean the ink on the surface of the ink scraper plate 15, so that the scraper blade 19 in the cleaning frame 17 cleans the surface of the ink scraper plate 15, reduces the dirt adhering to the ink scraper plate 15, effectively reduces the ink scraper lines on the printed pattern of the paper packaging box caused by dirt, and improves the printing quality. Example

[0026] The cleaning sponge 20 is convenient for absorbing impurities in liquids such as ink, thereby reducing the unevenness of the surface of the ink scraper 15 caused by the solidification of the ink, and reducing the influence of the ink scraping effect of the ink scraper 15 on the ink scraper 15.

[0027] Working principle: When using this device, the printing roller 3 is rotated by the first motor 2, driving the first gears 7 on both sides to rotate, and the cams 10 on both sides are rotated by the meshing connection between the first gear 7 and the second gear 8. The surfaces of the cams 10 on both sides contact the surfaces of the rollers 12, and a spring 16 is connected between the cleaning frame 17 and the fixed frame 14. Relying on the compression and stretchability of the spring 16, the cleaning frame 17 is driven to clean the ink on the surface of the squeegee 15, so that the scraper blade 19 in the cleaning frame 17 cleans the surface of the squeegee 15, reducing the dirt adhering to the squeegee 15. , effectively reducing the scraper lines on the printed pattern of the paper packaging box caused by dirt, improving the printing quality, and keeping the cleaning brush 18 in the cleaning frame 17 and moving synchronously with the scraper blade 19, so that before the scraper blade 19 scrapes the dirt on the scraper plate 15, the moving cleaning brush 18 blocks the dirt, reducing the splashing of dirt by the scraper blade 19, and the cleaning sponge 20 is convenient for absorbing impurities in liquids such as ink, thereby reducing the unevenness of the surface of the scraper plate 15 caused by ink solidification, reducing the impact of the scraping effect of the scraper plate 15, and making it have a better use effect.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning mechanism for gravure printing equipment for paper packaging boxes, characterized by: include: A mounting frame (1), wherein a cleaning drive mechanism is fixedly mounted on the outer side of the mounting frame (1), and the cleaning drive mechanism comprises: a first motor (2), a rotating shaft (6) is fixedly mounted on the output end of the first motor (2), the rotating shaft (6) is connected to a printing roller (3) through the rotating shaft (6) near the center end, a first gear (7) is sleeved on both sides of the rotating shaft (6) away from the printing roller (3), a second gear (8) is meshedly connected to the side surface of the first gear (7), a connecting shaft (9) is rotatably connected to the side end surface of the second gear (8), and a cam (10) is sleeved on the side of the connecting shaft (9) away from the second gear (8); A fixing frame (14) is fixedly mounted on the inner side of the mounting frame (1), a scraper (15) is provided on the side of the fixing frame (14) close to the printing roller (3), a cleaning device is sleeved on the scraper (15), and the cleaning device comprises: a cleaning frame (17), a roller (12) is rotatably connected to the side of the cleaning frame (17) close to the connecting shaft (9), and a spring (16) is provided between the fixing frame (14) and the cleaning frame (17).

2. A cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 1, characterized in that: A bracket (11) is fixedly mounted on one side of the cleaning frame (17) close to the connecting shaft (9), a pin (13) is provided on the side surface of the bracket (11), and the roller (12) is rotatably connected via the pin (13).

3. A cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 1, characterized in that: The rollers (12) and the cams (10) are symmetrically arranged in two groups, and the side surfaces of the rollers (12) are in contact with the cams (10).

4. A cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 1, characterized in that: The upper and lower inner walls of the cleaning frame (17) are both fixedly mounted with symmetrically arranged scraping blades (19), and the sides of the scraping blades (19) that are close to each other are in contact with the ink scraping plate (15).

5. A cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 4, characterized in that: A cleaning brush (18) is provided on one side of the scraper sheet (19) close to the printing roller (3), and the cleaning brush (18) is fixedly connected to the inner wall of the cleaning frame (17).

6. A cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 4, characterized in that: A cleaning sponge (20) is provided on one side of the scraper sheet (19) away from the cleaning brush (18), and the cleaning sponge (20) is respectively bonded to the upper and lower inner walls of the cleaning frame (17).

7. The cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 1, characterized in that: Grooves (21) are provided on both sides of the cleaning frame (17), and the ink scraper (15) is fixedly connected to the fixing frame (14) via the grooves (21).

8. The cleaning mechanism for gravure printing equipment for paper packaging boxes according to claim 1, characterized in that: A second motor (4) is fixedly connected to the outside of the mounting frame (1), a lower pressure roller (5) is fixedly connected to the output end of the second motor (4), and an ink cartridge (22) is provided on the bottom surface of the mounting frame (1).

Images