Ink cleaning mechanism of photogravure press

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a photogravure press ink cleaning mechanism which comprises a cleaning box and a box cover, an opening groove is formed in the top of the box cover, a photogravure cylinder is arranged in the middle of the opening groove, and an installation frame and a fixing plate are installed on the two sides of the inner wall of the opening groove respectively. An adjusting groove is formed in the upper surface of the mounting frame, a moving assembly is arranged in the adjusting groove, first limiting holes are symmetrically formed in the inner walls of the two sides of the adjusting groove, a mounting groove is formed in the outer wall of the side, close to the gravure cylinder, of the mounting frame, and third springs are symmetrically arranged in the mounting groove; a cleaning brush is connected to the end, close to the gravure cylinder, of the third spring, a liquid storage box is arranged outside the side, close to the gravure cylinder, of the fixing plate, a spray head is installed on one side of the liquid storage box, and a connecting assembly is arranged in the fixing plate. Through the cooperation of the structure, the purpose of cleaning residual ink in the groove of the printing cylinder is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to an ink cleaning mechanism for a gravure printing machine. Background Art

[0002] A gravure printing machine is a commonly used printing device. The graphic part of the printing plate is recessed, and the blank part is on the same plane as the outer circle of the printing plate cylinder. When the gravure printing machine is printing, the entire surface of the printing plate cylinder is inked, and the excess ink on the surface of the cylinder is scraped off by a doctor blade. By bringing the printing plate cylinder into contact with the paper and applying pressure, the ink is directly transferred to the paper surface to achieve printing.

[0003] However, during the use of the existing gravure printing machine, the residual ink on the surface of the printing cylinder, especially the grooves, cannot be completely cleaned. It may accumulate during continuous printing operations, and the surface of the ink inside the grooves is prone to skinning, affecting the printing effect of the next time. Now, an ink cleaning mechanism for a gravure printing machine is provided to alleviate the above-mentioned problems. Summary of the Invention

[0004] The utility model realizes the purpose of cleaning the residual ink in the grooves of the printing cylinder by the cooperation of structures such as a cleaning brush, a moving component, a liquid storage box, and a spray head, so that the clear water flushes the gravure cylinder, and the cleaning brush brushes the rotating gravure cylinder.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ink cleaning mechanism for a gravure printing machine includes a cleaning box, and further includes a box cover installed above the cleaning box. An opening groove is provided at the top of the box cover. A gravure cylinder is provided at the middle position of the opening groove. Installation frames and fixing plates are respectively installed on both sides of the inner wall of the opening groove. An adjustment groove is provided on the upper surface of the installation frame. A moving component is provided in the adjustment groove. First limiting holes are symmetrically provided on both inner walls of the adjustment groove on both sides. An installation groove is provided on the outer wall of the installation frame close to the gravure cylinder. Spring threes are symmetrically provided in the installation groove. One end of the spring three close to the gravure cylinder is connected to a cleaning brush. A liquid storage box is provided outside the fixing plate close to the gravure cylinder. A spray head is installed on one side of the liquid storage box. A connection component is arranged inside the fixing plate.

[0007] Preferably, a second limiting hole is provided on the outer surface of the fixing plate close to the liquid storage box. Third limiting holes are provided on both sides of the second limiting hole. A water tank is installed on the top of the box cover close to the fixing plate. The water outlet of the water tank is connected to a delivery pipe. A water pump is provided on the delivery pipe.

[0008] Preferably, the moving component includes a moving plate, both ends of the moving plate are connected with connecting columns, a first spring is connected between the connecting columns and the inner wall of the limiting hole, a rack is connected to the middle position of the bottom of the moving plate, a motor is installed on the inner side wall of the adjusting groove below the rack, and the output end of the motor is connected with a gear.

[0009] Preferably, the connecting component includes an electric push rod connected to the inner wall of the second limiting hole, the extending end of the electric push rod is connected with a sliding rod, a moving rod connected with the liquid storage box is slidably connected in the second limiting hole, a second spring is sleeved on the outer wall of the moving rod, a telescopic rod connected with the liquid storage box is slidably connected in the third limiting hole, and an elastic member is sleeved on the outer wall of the telescopic rod.

[0010] Preferably, both ends of the outer wall of the cleaning brush close to one side of the mounting frame are connected with connecting plates, the other ends of the two connecting plates are both connected with sliding sleeves, and a guide rod is slidably connected to the sliding sleeves.

[0011] Preferably, a plurality of spray heads are arranged at equal intervals along the length direction of the liquid storage box, the plurality of spray heads are inclined, and their inclined directions all face the gravure cylinder and are arranged in a staggered manner.

[0012] Compared with the prior art, the gain effect of the present utility model is as follows:

[0013] 1. By arranging structures such as a mounting frame, a fixing plate, a cleaning brush, a moving component, a liquid storage box and a spray head, when the gravure cylinder rotates, the motor is started to drive the gear to rotate, the gear drives the rack to move, the rack drives the moving plate to make a reciprocating motion, and then the cleaning brush is driven to move back and forth by the guide rod and the third spring to clean the residual ink inside the groove of the gravure cylinder. At the same time, the water pump is started to pump the clear water in the water tank into the liquid storage box through the delivery pipe, and then sprayed on the gravure cylinder through the spray head, so as to thoroughly clean the groove of the gravure cylinder and avoid ink residue on the inner wall of the groove, which affects the printing quality of the device.

[0014] 2. By arranging the guide rod, the sliding sleeve, the connecting plate and the third spring, the pressure between the cleaning brush and the gravure cylinder can be adjusted, the applicability of the device is increased, and at the same time, the cleaning brush is limited, so as to improve the stability of the device.

[0015] 3. By arranging the connecting component, under the drive of the electric push rod, the sliding rod is driven to move in the second limiting hole, the sliding rod drives the moving rod to move, and at the same time, the second spring is compressed or extended, the moving rod drives the liquid storage box to move, so as to change the distance between the spray head and the gravure cylinder, and adjust the size of the water spraying pressure of the spray head, and avoid ink residue on the inner wall of the groove. Description of the Drawings

[0016] Figure 1is a perspective view of an embodiment of the present utility model;

[0017] Figure 2 is a schematic cross-sectional structure view of an embodiment of the present utility model;

[0018] Figure 3 is an exploded view of a mounting bracket, a moving plate and a cleaning brush of an embodiment of the present utility model;

[0019] Figure 4 is a partial cross-sectional view of a moving assembly of an embodiment of the present utility model;

[0020] Figure 5 is an exploded view of a fixing plate, a liquid storage box, a spray head and a connecting assembly of an embodiment of the present utility model;

[0021] Figure 6 is a partial cross-sectional view of a connecting assembly and a liquid storage box of an embodiment of the present utility model.

[0022] In the figure: cleaning box 1; box cover 2; opening groove 201; mounting bracket 3; adjusting groove 301; mounting groove 302; first limiting hole 303; fixing plate 4; second limiting hole 401; third limiting hole 402; intaglio cylinder 5; moving assembly 6; motor 601; gear 602; rack 603; moving plate 604; first spring 605; connecting column 606; connecting assembly 7; electric push rod 701; sliding rod 702; second spring 703; moving rod 704; telescopic rod 705; elastic member 706; guide rod 8; sliding sleeve 9; connecting plate 10; third spring 11; cleaning brush 12; liquid storage box 13; spray head 14; delivery pipe 15; water tank 16; water pump 17. Specific embodiments

[0023] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment

[0025] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. For the purpose of making the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present utility model and are not configured to limit the present utility model. For those skilled in the art, the present utility model can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present utility model by showing examples of the present utility model.

[0026] The orientation terms used in the following description are all the directions shown in the figures, and do not limit the specific structure of the present utility model. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations; the content not described in detail in this specification belongs to the prior art well-known to those of ordinary skill in the art.

[0027] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments for a clearer understanding of the present utility model.

[0028] Please refer to Figures 1-6 , an ink cleaning mechanism for a gravure printing machine, including a cleaning box 1, a box cover 2 is installed above the cleaning box 1, an opening groove 201 is opened at the top of the box cover 2, a gravure cylinder 5 is rotatably arranged at the middle position of the opening groove 201, a mounting bracket 3 is fixedly installed on the outer wall of the opening groove 201 on one side of the gravure cylinder 5, an adjustment groove 301 is opened on the upper surface of the mounting bracket 3, a moving component 6 is arranged in the adjustment groove 301, the moving component 6 includes a moving plate 604, the moving plate 604 is slidably arranged at the top end inside the adjustment groove 301, both ends of the moving plate 604 are fixedly connected with connecting columns 606, first limiting holes 303 are opened at positions corresponding to the connecting columns 606 on both inner walls of the adjustment groove 301, the connecting columns 606 are slidably connected inside the first limiting holes 303, one end of the connecting column 606 away from the moving plate 604 is fixedly connected with a first spring 605, and the other end of the first spring 605 is fixedly connected with the inner wall of the first limiting hole 303.

[0029] Please refer to Figures 1-6 , the moving component 6 includes a rack 603, the rack 603 is fixedly connected to the middle position at the bottom of the moving plate 604, a motor 601 is fixedly installed on the inner side wall of the adjustment groove 301 below the rack 603, an output end of the motor 601 is fixedly connected with a gear 602, and the gear 602 is meshed with the rack 603.

[0030] Please refer to Figures 1-6, on the outer wall of the mounting bracket 3 near the gravure cylinder 5, a mounting groove 302 is provided. The mounting groove 302 communicates with the adjustment groove 301. Inside the mounting groove 302, two springs III 11 are symmetrically arranged. One end of the spring III 11 away from the gravure cylinder 5 is fixedly connected to the outer wall of the moving plate 604. One end of the spring III 11 close to the gravure cylinder 5 is fixedly connected to a cleaning brush 12. And the cleaning end of the cleaning brush 12 abuts against the surface of the gravure cylinder 5, so that the ink to be cleaned at the gravure cylinder can be scraped off by the cleaning brush 12. At both ends of the outer wall of the cleaning brush 12 close to the moving plate 604, connecting plates 10 are fixedly connected. The other ends of the two connecting plates 10 are both fixedly connected to sliding sleeves 9. A guide rod 8 is slidably connected to the sliding sleeve 9. One end of the guide rod 8 away from the cleaning brush 12 is fixedly connected to the outer surface of the moving plate 604.

[0031] In this embodiment, through the guide rod 8, the connecting plate 10 and the sliding sleeve 9, a limiting effect is exerted on the cleaning brush 12, thereby increasing the stability of the cleaning brush 12 for brushing the ink on the surface of the gravure cylinder 5. At the same time, the pressure between the cleaning brush 12 and the gravure cylinder 5 can be adjusted, increasing the applicability of the device.

[0032] Please refer to Figures 1-6 , on the outer wall of the opening groove 201 on the side away from the mounting bracket 3, a fixing plate 4 is fixedly installed. On the outside of the fixing plate 4 close to the gravure cylinder 5, a liquid storage box 13 is fixedly arranged. Inside the liquid storage box 13, a spray head 14 is fixedly installed by means of threads. On the top of the box cover 2 close to the fixing plate 4, a water tank 16 is fixedly installed. The water outlet of the water tank 16 is fixedly connected to a delivery pipe 15. The other end of the delivery pipe 15 is fixedly communicated with the liquid storage box 13. Above the delivery pipe 15, a water pump 17 for controlling the water tank 16 is provided.

[0033] Furthermore, a plurality of spray heads 14 are arranged at equal intervals along the length direction of the liquid storage box 13. The plurality of spray heads 14 are inclined. Their inclined directions all face the gravure cylinder 5 and are arranged in a staggered manner, so that the surface of the gravure cylinder 5 can be rinsed more comprehensively and quickly.

[0034] Please refer to Figures 1-6, a second limiting hole 401 is provided at the middle position of the outer surface of the fixing plate 4 close to one side of the liquid storage box 13. Third limiting holes 402 are provided on the outer walls of the liquid storage box 13 on both sides of the second limiting hole 401. A connecting component 7 is arranged inside the fixing plate 4. The connecting component 7 includes an electric push rod 701. The inner wall of the second limiting hole 401 is fixedly connected with the electric push rod 701. The extending end of the electric push rod 701 is fixedly connected with a sliding rod 702. The sliding rod 702 is slidably connected with the second limiting hole 401. A moving rod 704 fixedly connected with the liquid storage box 13 is slidably connected inside the second limiting hole 401. A second spring 703 is sleeved on the outer wall of the moving rod 704. A telescopic rod 705 fixedly connected with the liquid storage box 13 is slidably connected inside the third limiting hole 402. An elastic member 706 is sleeved on the outer wall of the telescopic rod 705.

[0035] In this embodiment, when it is necessary to adjust the pressure of the nozzle 14 spraying clean water on the surface of the gravure cylinder 5, the electric push rod 701 is driven to work. The electric push rod 701 controls the sliding rod 702 to move inside the second limiting hole 401. The sliding rod 702 drives the moving rod 704 to move. At the same time, the second spring 703 is compressed or extended. The moving rod 704 drives the liquid storage box 13 to move, so as to change the distance between the nozzle 14 and the gravure cylinder 5, and the size of the pressure of the nozzle 14 spraying clean water can be adjusted, thereby avoiding ink residue on the inner wall of the groove.

[0036] Working principle: After the printing operation is completed, the staff first drives the gravure cylinder 5 to rotate, so that the excess ink on the surface of the gravure cylinder 5 is removed by the cleaning brush 12. At the same time, the motor 601 is started to operate. The output end of the motor 601 rotates to drive the gear 602 to rotate. The gear 602 drives the rack 603 to move. The rack 603 drives the moving plate 604 to move back and forth inside the adjustment groove 301. Then, the cleaning brush 12 is driven to move back and forth by the guide rod 8 and the third spring 11, so as to clean the ink residue inside the groove of the gravure cylinder 5 more thoroughly; while the cleaning brush 12 is cleaning, the water pump 17 is started. The water pump 17 pumps the clean water in the water tank 16 into the liquid storage box 13 through the delivery pipe 15, and then sprays it on the gravure cylinder 5 through the nozzle 14. At this time, the gravure cylinder 5 rotates, the clean water flushes the gravure cylinder 5, and the cleaning brush 12 brushes the rotating gravure cylinder 5, thereby avoiding ink residue on the inner wall of the groove and affecting the printing quality of the device.

Claims

1. An ink cleaning mechanism for a gravure printing press, comprising a cleaning box (1), characterized in that: A box cover (2) is installed above the cleaning box (1); an opening slot (201) is provided on the top of the box cover (2); a gravure roller (5) is provided in the middle of the opening slot (201); a mounting frame (3) and a fixing plate (4) are respectively installed on both sides of the inner wall of the opening slot (201); an adjustment slot (301) is provided on the upper surface of the mounting frame (3); a moving component (6) is provided in the adjustment slot (301); first limiting holes (303) are symmetrically provided on the inner walls of both sides of the adjustment slot (301); ), a mounting groove (302) is provided on the outer wall of the mounting frame (3) on the side close to the gravure roller (5), a spring three (11) is symmetrically arranged in the mounting groove (302), a cleaning brush (12) is connected to one end of the spring three (11) close to the gravure roller (5), a liquid storage box (13) is provided on the outside of the fixed plate (4) on the side close to the gravure roller (5), a nozzle (14) is installed on one side of the liquid storage box (13), and a connecting component (7) is arranged in the fixed plate (4).

2. The ink cleaning mechanism for a gravure printing press according to claim 1, characterized in that: A second limiting hole (401) is provided on the outer surface of the fixing plate (4) on the side close to the liquid storage box (13), and third limiting holes (402) are provided on both sides of the second limiting hole (401). A water tank (16) is installed on the top of the box cover (2) on the side close to the fixing plate (4), and a delivery pipe (15) is connected to the water outlet of the water tank (16), and a water pump (17) is provided on the delivery pipe (15).

3. The ink cleaning mechanism for a gravure printing press according to claim 1, characterized in that: The moving assembly (6) comprises a moving plate (604), both ends of the moving plate (604) are connected with connecting columns (606), a spring (605) is connected between the connecting column (606) and the inner wall of the limiting hole (303), a rack (603) is connected to the middle position of the bottom of the moving plate (604), a motor (601) is installed on the inner wall of the adjustment slot (301) below the rack (603), and a gear (602) is connected to the output end of the motor (601).

4. An ink cleaning mechanism for a gravure printing press according to claim 1 or 2, characterized in that: The connecting assembly (7) comprises an electric push rod (701) connected to the inner wall of the second limiting hole (401), the extended end of the electric push rod (701) is connected to a sliding rod (702), a moving rod (704) connected to the liquid storage box (13) is slidably connected in the second limiting hole (401), a spring 2 (703) is sleeved on the outer wall of the moving rod (704), a telescopic rod (705) connected to the liquid storage box (13) is slidably connected in the third limiting hole (402), and an elastic member (706) is sleeved on the outer wall of the telescopic rod (705).

5. The ink cleaning mechanism for a gravure printing press according to claim 1, characterized in that: Both ends of the outer wall of the cleaning brush (12) close to the mounting frame (3) are connected to connecting plates (10), and the other ends of the two connecting plates (10) are connected to sliding sleeves (9), and the sliding sleeves (9) are slidably connected to guide rods (8).

6. The ink cleaning mechanism for a gravure printing press according to claim 1, characterized in that: A plurality of the nozzles (14) are arranged at equal intervals along the length direction of the liquid storage box (13); the plurality of the nozzles (14) are arranged at an angle, with their inclination directions all facing the gravure cylinder (5) and are arranged in an interlaced manner.

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