Electrostatic adsorption type flying ink collecting device of digital printing machine

Abstract

The utility model relates to the technical field of printing, and discloses an electrostatic adsorption type flying ink collecting device of a digital printing machine, which comprises a box body, a motor is fixedly mounted on one side of the box body through a mounting frame, an output shaft of the motor penetrates through the side wall of the box body and is fixedly sleeved with a plate roller, and the plate roller is rotatably connected to the inner wall of the box body. The box body comprises an ink collecting mechanism and a cleaning mechanism; a semi-surrounding structure is formed by the arc-shaped plates and the baffles, flying ink paths are forcibly limited, flying ink diffusion is reduced, the pollution risk in equipment is reduced, flying ink diversion is achieved through gravity, an extra power device is not needed, energy consumption is reduced, large and small particle impurities are intercepted in a graded mode through double-layer filtering of the metal filter screen and the filter paper, and it is guaranteed that recycled ink is pure; and the filter paper can be quickly replaced through the sliding frame, the filter paper does not need to be disassembled for cleaning, the maintenance time is shortened, and the equipment operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to an electrostatic adsorption type ink collection device for a digital printing press. Background Technology

[0002] Electrostatic adsorption ink splatter collection devices are key components in digital printing presses used to solve the problem of "ink splatter" during the printing process. They mainly use electrostatic principles to adsorb and collect fine ink mist particles generated during printing, effectively capturing splattered ink, reducing equipment maintenance frequency, minimizing downtime caused by contamination, and extending the overall service life of the equipment.

[0003] Patent CN222554521U discloses a printing electrostatic ink-absorbing device, belonging to the field of printing technology. It addresses the problem of insufficient dust removal and static electricity elimination affecting printing quality. The device includes a housing with an inlet on the left and an outlet on the right. A conveying mechanism is installed inside the inlet and outlet. A drive device is fixedly mounted on the front of the housing, and a printing roller is fixedly mounted on the drive device and rotatably mounted inside the housing via bearings. An electrostatic roller is rotatably mounted on the upper part of the housing, and an electrostatic discharge rod is fixedly mounted on the upper part of the electrostatic roller inside the housing. Static elimination rollers are rotatably mounted on both sides of the electrostatic discharge rod inside the housing. This invention, through its conveying mechanism, can electrostatically adsorb and clean dust from the surface of printed materials during the printing process, thereby improving printing quality and ensuring printing results.

[0004] The aforementioned patents have limitations in handling and collecting ink splatter during use. Long-term accumulation may affect the accuracy of equipment operation or cause pollution, requiring additional maintenance and cleaning. Additionally, the electrostatic brush is made to adhere to the printed material by using spring force, but the disassembly and maintenance of the electrostatic brush is relatively cumbersome and inefficient. Therefore, an electrostatic adsorption ink splatter collection device for digital printing machines is proposed for improvement. Utility Model Content

[0005] In view of the aforementioned problems of difficulty in processing and collecting ink splatter and the relatively cumbersome steps in disassembling and maintaining electrostatic brushes, this utility model is proposed.

[0006] To solve the above technical problems, the present invention provides the following technical solution: an electrostatic adsorption type ink collection device for a digital printing press, comprising a housing, a motor fixedly mounted on one side of the housing via a mounting bracket, the output shaft of the motor passing through the side wall of the housing and fixedly sleeved with a printing roller, the printing roller being rotatably connected to the inner wall of the housing, and the housing comprising an ink collection mechanism and a cleaning mechanism;

[0007] The printing roller is symmetrically provided with arc-shaped plates on both sides. A baffle is fixedly connected to the top of the arc-shaped plate, and the bottom of the arc-shaped plate is fixedly connected to the partition in the middle of the box. Several guide grooves are opened on the inner side of the arc-shaped plate. A groove is opened at the top of the partition in the middle of the box. The groove is inclined. A connecting groove is opened at the inclined end of the groove. A screening box is provided at the bottom of the inner wall of the box. The interior of the connecting groove is connected to the interior of the screening box. A metal filter screen is fixedly connected to the upper part of the inner wall of the screening box. A sliding frame is slidably connected to the lower part of the inner wall of the screening box. Filter paper is installed inside the sliding frame. An ink outlet pipe is fixedly sleeved on the bottom wall of the screening box. The ink outlet pipe extends to the lower part of the bottom of the box.

[0008] As a preferred embodiment, the following features: through slots are provided on the top of both sides of the box body; limiting slots are symmetrically provided on the inner wall of the through slot on the left side; the inner side of the limiting slot is connected to the outside of the box body; spring slots are provided at both the upper and lower ends of the limiting slot; and sliding grooves are provided on the inner wall of the spring slot.

[0009] As a preferred embodiment, the inner wall of the limiting groove is slidably connected to two limiting plates, and sliding rods are symmetrically installed on opposite sides of the two limiting plates. The sliding rods are slidably connected to the inner wall of the groove, and a first spring is sleeved on the outer surface of the sliding rod. The two ends of the first spring are respectively connected to the inner wall of the spring groove and one side of the limiting plate.

[0010] As a preferred embodiment, a connecting plate is provided on the other side of the limiting plate, and a brush is fixedly connected to the opposite side of the connecting plate.

[0011] As a preferred embodiment, a dovetail block is fixedly connected to the other side of the connecting plate. The dovetail block is slidably connected to the dovetail groove inside the limiting plate. A locking rod is slidably connected to one end of the limiting plate. One end of the locking rod is fitted into the groove at one end of the dovetail block. A second spring is sleeved on the other end of the locking rod. The two ends of the second spring are in contact with the second spring pull plate and one side of the limiting plate, respectively.

[0012] As a preferred embodiment, an electrostatic rubber roller is provided above the printing roller, an electrostatic discharge rod is provided above the electrostatic rubber roller, and electrostatic elimination rollers are provided on both sides of the upper part of the inner wall of the box.

[0013] As a preferred embodiment, a conveying roller is rotatably connected to the inner wall of the channel on the left, and a discharge roller is rotatably connected to the inner wall of the channel on the right.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. This utility model forms a semi-enclosed structure with an arc-shaped plate and a baffle, which forcibly limits the ink flow path, reduces ink diffusion, and lowers the risk of internal contamination. Then, it uses gravity to guide the ink flow, eliminating the need for an additional power device and reducing energy consumption. Through double-layer filtration of metal mesh and filter paper, it intercepts impurities of different sizes in stages, ensuring the purity of the recovered ink and meeting the standards for reuse. Furthermore, the filter paper can be quickly replaced through a sliding frame without disassembling the machine for cleaning, shortening maintenance time and improving equipment operating efficiency.

[0016] 2. This utility model allows the dovetail block to be released simply by pulling the lever outward. Without the need for tools such as screwdrivers, the connecting plate and brush can be quickly pulled out for maintenance, greatly shortening equipment downtime for maintenance, reducing production interruptions caused by maintenance, and improving equipment efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a side view of the structure of this utility model;

[0019] Figure 2 This is a side sectional view of the present invention.

[0020] Figure 3 for Figure 1 A schematic diagram of a partial cross-sectional structure;

[0021] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 11. Through groove; 12. Limiting groove; 2. Feeding roller; 21. Discharge roller; 3. Motor; 31. Printing roller; 4. Static elimination roller; 5. Static discharge rod; 6. Static rubber roller; 7. Ink collection mechanism; 71. Arc plate; 72. Baffle; 73. Guide groove; 74. Groove; 75. Connecting groove; 76. Screening box; 77. Metal filter screen; 78. Sliding frame; 79. Ink outlet pipe; 8. Cleaning mechanism; 81. Limiting plate; 82. Spring groove; 83. Sliding groove; 84. Sliding rod; 85. First spring; 86. Connecting plate; 87. Brush; 88. Dovetail block; 89. Locking rod; 810. Second spring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figures 1-4 This is the first embodiment of the present invention, which provides an electrostatic adsorption type ink collection device for a digital printing machine, including a housing 1. A motor 3 is fixedly installed on one side of the housing 1 by a mounting bracket. The output shaft of the motor 3 passes through the side wall of the housing 1 and is fixedly sleeved with a printing roller 31. The printing roller 31 is rotatably connected to the inner wall of the housing 1. The housing 1 includes an ink collection mechanism 7 and a cleaning mechanism 8.

[0026] The printing roller 31 has symmetrically arranged arc-shaped plates 71 on both sides. A baffle 72 is fixedly connected to the top of the arc-shaped plate 71. The bottom of the arc-shaped plate 71 is fixedly connected to the partition in the middle of the box body 1. Several guide grooves 73 are opened on the inner side of the arc-shaped plate 71. A groove 74 is opened at the top of the partition in the middle of the box body 1. The groove 74 is inclined. A connecting groove 75 is opened at the inclined end of the groove 74. A screening box 76 is provided at the bottom of the inner wall of the box body 1. The interior of the connecting groove 75 is connected to the interior of the screening box 76. A metal filter screen 77 is fixedly connected to the upper part of the inner wall of the screening box 76. A sliding frame 78 is slidably connected to the lower part of the inner wall of the screening box 76. Filter paper is installed inside the sliding frame 78. An ink outlet pipe 79 is fixedly sleeved on the bottom wall of the screening box 76. The ink outlet pipe 79 extends to the lower part of the bottom of the box body 1.

[0027] Specifically, when the printing roller 31 rotates with the motor 3, the ink on the surface will generate ink splatter due to centrifugal force or printing action. At this time, the arc-shaped plates 71 symmetrically arranged on both sides of the printing roller 31 form a semi-enclosed structure. By using physical shielding, the ink splatter flying towards the side wall of the box is first intercepted. The baffle 72 is used to prevent the ink splatter from splashing upward and further limit the ink splatter collection path.

[0028] Next, the guide channel 73 guides the intercepted ink to the bottom of the arc plate 71, and finally gathers it into the groove 74. The groove 74 is designed with an inclination, and uses gravity to make the ink flow towards the connecting channel 75. After the ink falls into the screening box 76 through the connecting channel 75, it first passes through the metal filter 77 on the upper inner wall. The metal filter 77 is used to filter larger particles of impurities, allowing only liquid ink or fine particles to pass through. The ink drips into the sliding frame 78 below after passing through the metal filter 77. The filter paper installed inside the sliding frame 78 further filters out tiny impurities to ensure the purity of the ink. The sliding frame 78 is slidably connected to the inner wall of the screening box 76, which makes it easy to remove and replace the filter paper regularly to maintain the filtration effect. Finally, the filtered ink flows into the recovery container through the ink outlet pipe 79 to achieve recovery.

[0029] This design uses an arc-shaped plate 71 and a baffle 72 to form a semi-enclosed structure, which forcibly limits the ink flow path, reduces ink diffusion, and lowers the risk of internal contamination. Then, gravity is used to guide the ink flow, eliminating the need for an additional power unit and reducing energy consumption. The double-layer filtration of metal mesh 77 and filter paper effectively intercepts impurities of different sizes, ensuring the purity of the recovered ink and meeting the standards for reuse. The filter paper can be quickly replaced via a sliding frame 78 without disassembling the machine for cleaning, shortening maintenance time and improving equipment operating efficiency.

[0030] Reference Figures 1-4 This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that: a through groove 11 is provided on the top of both sides of the box body 1, a limiting groove 12 is symmetrically provided on the inner wall of the left through groove 11, the inside of the limiting groove 12 on one side is connected to the outside of the box body 1, a spring groove 82 is provided at both the upper and lower ends of the limiting groove 12, and a sliding groove 83 is provided on the inner wall of the spring groove 82.

[0031] Two limiting plates 81 are slidably connected to the inner wall of the limiting groove 12. Sliding rods 84 are symmetrically installed on opposite sides of the two limiting plates 81. The sliding rods 84 are slidably connected to the inner wall of the sliding groove 83. A first spring 85 is sleeved on the outer surface of the sliding rod 84. The two ends of the first spring 85 are respectively connected to the inner wall of the spring groove 82 and one side of the limiting plate 81.

[0032] A connecting plate 86 is provided on the other side of the limiting plate 81, and a brush 87 is fixedly connected to the opposite side of the connecting plate 86;

[0033] A dovetail block 88 is fixedly connected to the other side of the connecting plate 86. The dovetail block 88 is slidably connected to the dovetail groove inside the limiting plate 81. A locking rod 89 is slidably connected to one end of the limiting plate 81. One end of the locking rod 89 is fitted into the groove at one end of the dovetail block 88. A second spring 810 is sleeved on the other end of the locking rod 89. The two ends of the second spring 810 are in contact with the second spring 810 pull plate and one side of the limiting plate 81, respectively.

[0034] Specifically, the first spring 85 uses its spring force to push the limiting plate 81, so that the brush 87 always fits tightly against the surface of the printing material, achieving stable cleaning.

[0035] When it is necessary to replace or clean the brush 87, pull the lever 89 outward to disengage it from the slot of the dovetail block 88. At this time, the second spring 810 is stretched. After the lever 89 is released from its limit, the dovetail block 88 can be pulled out from the dovetail slot of the limit plate 81, and then the connecting plate 86 and the brush 87 can be taken out for maintenance.

[0036] After maintenance, insert the dovetail block 88 back into the dovetail groove of the limiting plate 81, release the locking rod 89, and the second spring 810 will reset and push the locking rod 89 to re-fit into the dovetail block 88, thus completing the quick installation and fixation of the cleaning component.

[0037] This design allows the dovetail block 88 to be released by pulling out the lever 89, enabling the connecting plate 86 and brush 87 to be quickly pulled out for maintenance without the need for tools such as screwdrivers. This greatly shortens the equipment downtime for maintenance, reduces production interruptions caused by maintenance, and improves equipment efficiency.

[0038] Reference Figures 1-4 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: an electrostatic rubber roller 6 is provided above the printing roller 31, an electrostatic discharge rod 5 is provided above the electrostatic rubber roller 6, and an electrostatic elimination roller 4 is provided on both sides of the upper part of the inner wall of the box 1.

[0039] A conveying roller 2 is rotatably connected to the inner wall of the left through groove 11, and a discharge roller 21 is rotatably connected to the inner wall of the right through groove 11.

[0040] During use, the electrostatic discharge rod 5 releases static electricity to the electrostatic roller 6, causing the surface of the electrostatic roller 6 to carry a charge 1. When the printing material is conveyed between the printing roller 31 and the electrostatic roller 6 via the feed roller 2, the electrostatic roller 6 uses electrostatic attraction to transfer the ink on the surface of the printing roller 31 onto the printing material. During the ink transfer process, due to electrostatic adsorption, ink scattering is reduced, improving ink transfer efficiency and printing accuracy.

[0041] The feed roller 2 is responsible for conveying the printing material to be printed to the printing area between the printing roller 31 and the electrostatic roller 6; the discharge roller 21 is used to receive the printed printing material and output it to the subsequent process.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrostatic adsorption type ink collection device for a digital printing press, comprising a housing (1), characterized in that: A motor (3) is fixedly installed on one side of the housing (1) by a mounting bracket. The output shaft of the motor (3) passes through the side wall of the housing (1) and is fixedly sleeved with a printing roller (31). The printing roller (31) is rotatably connected to the inner wall of the housing (1). The housing (1) includes an ink collection mechanism (7) and a cleaning mechanism (8). The printing roller (31) is symmetrically provided with arc-shaped plates (71) on both sides. A baffle (72) is fixedly connected to the top of the arc-shaped plate (71). The bottom of the arc-shaped plate (71) is fixedly connected to the middle partition of the box body (1). Several guide grooves (73) are opened on the inner side of the arc-shaped plate (71). A groove (74) is opened at the top of the middle partition of the box body (1). The groove (74) is inclined. A connecting groove (75) is opened at the inclined end of the groove (74). A screening box (76) is provided at the bottom of the inner wall of the box body (1). The inside of the connecting groove (75) is connected to the inside of the screening box (76). A metal filter screen (77) is fixedly connected to the upper part of the inner wall of the screening box (76). A sliding frame (78) is slidably connected to the lower part of the inner wall of the screening box (76). Filter paper is installed inside the sliding frame (78). An ink outlet pipe (79) is fixedly sleeved on the bottom wall of the screening box (76). The ink outlet pipe (79) extends to the lower part of the bottom of the box body (1).

2. The electrostatic adsorption type ink collection device for a digital printing press according to claim 1, characterized in that: The top of both sides of the box (1) is provided with through grooves (11). The inner wall of the through groove (11) on the left side is symmetrically provided with limiting grooves (12). The inside of the limiting groove (12) on one side is connected to the outside of the box (1). The upper and lower ends of the limiting groove (12) are provided with spring grooves (82). The inner wall of the spring groove (82) is provided with sliding grooves (83).

3. The electrostatic adsorption type ink collection device for a digital printing press according to claim 2, characterized in that: Two limiting plates (81) are slidably connected to the inner wall of the limiting groove (12). Sliding rods (84) are symmetrically installed on opposite sides of the two limiting plates (81). The sliding rods (84) are slidably connected to the inner wall of the sliding groove (83). A first spring (85) is sleeved on the outer surface of the sliding rod (84). The two ends of the first spring (85) are respectively connected to the inner wall of the spring groove (82) and one side of the limiting plate (81).

4. The electrostatic adsorption type ink collection device for a digital printing press according to claim 3, characterized in that: A connecting plate (86) is provided on the other side of the limiting plate (81), and a brush (87) is fixedly connected to the opposite side of the connecting plate (86).

5. The electrostatic adsorption type ink collection device for a digital printing press according to claim 4, characterized in that: A dovetail block (88) is fixedly connected to the other side of the connecting plate (86). The dovetail block (88) is slidably connected to the dovetail groove inside the limiting plate (81). A locking rod (89) is slidably connected to one end of the limiting plate (81). One end of the locking rod (89) is fitted into the groove at one end of the dovetail block (88). A second spring (810) is sleeved on the other end of the locking rod (89). The two ends of the second spring (810) are in contact with the second spring (810) pull plate and one side of the limiting plate (81), respectively.

6. The electrostatic adsorption type ink collection device for a digital printing press according to claim 4, characterized in that: An electrostatic rubber roller (6) is provided above the printing roller (31), an electrostatic discharge rod (5) is provided above the electrostatic rubber roller (6), and electrostatic elimination rollers (4) are provided on both sides of the upper part of the inner wall of the box (1).

7. The electrostatic adsorption type ink collection device for a digital printing press according to claim 2, characterized in that: The inner wall of the channel (11) on the left is rotatably connected to a conveying roller (2), and the inner wall of the channel (11) on the right is rotatably connected to a discharge roller (21).

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