A scraping coating device for gravure printing.

Abstract

This utility model discloses a scraping device for gravure printing, including a processing table, columns, a CNC moving table, a scraper, guide rods, connecting rods, electric push rods, a placement table, and a collection box. Columns are fixedly installed at the four corners of the processing table surface. A CNC moving table is positioned directly above the processing table, and a scraper is installed below the CNC moving table. Guide rods are installed between two columns, with each guide rod located below the CNC moving table on one side. A connecting rod is installed on one side of each guide rod. Electric push rods are installed on both sides below the processing table. A placement table is located in the center of the processing table surface, and a collection box is located at the front of the processing table. This scraping device for gravure printing achieves precise positioning and pressure control of the scraper through the CNC moving table and electric push rods, avoiding scraping pressure issues caused by fatigue or skill differences during manual operation.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing technology, specifically to a scraping device for gravure printing processing. Background Technology

[0002] Gravure printing involves engraving the image areas onto the surface of a printing cylinder. The image areas are recessed, with the depth varying depending on the image's tonal range. The non-image areas are raised and lie on the same plane. Before printing, the entire printing plate is saturated with ink. Then, a doctor blade scrapes away the ink from the non-image areas, filling the cells with ink. Finally, high printing pressure and the adhesion between the ink and the substrate transfer the ink from the cells to the substrate.

[0003] The existing gravure printing process relies on manual ink application. This manual operation depends on the worker's experience, and the application pressure and squeegee angle often fluctuate, resulting in incomplete ink application. This leads to ink residue on non-recessed areas of the gravure surface or ink gaps in recessed areas, causing rework. This increases manual labor and reduces production efficiency. Furthermore, gravure printing inks contain a large amount of volatile organic compounds, and long-term exposure to high concentrations during manual operation can cause harm to the human body.

[0004] Therefore, it is necessary to invent a scraping device for gravure printing to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a scraping device for gravure printing to solve the problem of incomplete ink scraping caused by the need for manual ink scraping in the current technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gravure printing processing scraping device, comprising a processing table, columns, a CNC moving table, a scraper, guide rods, connecting rods, electric push rods, a placement table, and a collection box. Columns are fixedly installed at the four corners of the surface of the processing table. A CNC moving table is installed directly above the processing table. A scraper is installed below the CNC moving table. A guide rod is installed between two columns. The two guide rods are located below the CNC moving table on both sides. A connecting rod is installed on one side of each guide rod. Electric push rods are installed on both sides below the processing table. A placement table is installed in the middle of the surface of the processing table. A collection box is installed on the front side of the processing table. Several placement slots are formed on the surface of the placement table, and a printing gravure plate is placed in the middle of each placement slot.

[0007] The output end of the electric push rod is connected to the lower end of the connecting rod, which is U-shaped. The upper end of the connecting rod is connected to the lower side wall of the CNC moving table, and the guide rod passes through the middle of the side end of the CNC moving table.

[0008] Preferably, the scraper is detachable, the scraper is arc-shaped, a mounting plate is provided above the scraper, and a mounting groove is provided at the bottom of the CNC moving table to engage with the mounting plate.

[0009] Preferably, the top center of the scraper and the bottom center of the mounting plate are connected by an interlocking joint. The mounting plate is mounted to the CNC moving table by screws, and the scraper is also mounted to the mounting plate by screws.

[0010] Preferably, a slider is provided above the output end of the electric push rod, and grooves matching the sliding of the slider are provided on both sides of the bottom surface of the processing table.

[0011] Preferably, the bottom of the display stand is provided with a feed tray, the size of which is larger than the size of the display stand, and an inner groove is formed between the interior of the feed tray and the bottom side of the display stand.

[0012] Preferably, the outer walls of the placement platform are all sloped, the inner bottom surface of the feed tray is inclined, and a feed pipe is provided on both sides of one end of the feed tray, and the feed pipe is connected to the inside of the feed tray.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] This gravure printing coating equipment uses a CNC moving table and electric push rod to achieve precise positioning and pressure control of the squeegee, avoiding pressure fluctuations caused by fatigue or skill differences during manual operation. This ensures improved uniformity of ink residue thickness, reduces operational errors, and ensures consistent coating action for each operation. It eliminates the subjectivity of manual operation, ensures lower printing quality fluctuations within the same batch of products compared to manual standards, reduces quality inspection costs, and minimizes human contact during mechanical operation, thus reducing the risk of injury. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side-view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the electric actuator mounting structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the placement platform structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the scraper structure of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Processing table; 2. Column; 3. CNC moving table; 4. Scraper; 401. Mounting plate; 402. Mounting groove; 5. Guide rod; 6. Connecting rod; 7. Electric push rod; 701. Slider; 702. Slide groove; 8. Placement table; 801. Feed tray; 802. Feed pipe; 9. Collection box; 10. Printing gravure plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-5 The illustrated gravure printing coating equipment includes a processing table 1, columns 2, a CNC moving table 3, a scraper 4, guide rods 5, and connecting rods 6. Columns 2 are fixedly installed at the four corners of the surface of the processing table 1. The CNC moving table 3 is installed directly above the processing table 1. The scraper 4 is installed below the CNC moving table 3. The scraper 4 is detachable and arc-shaped. An mounting plate 401 is installed above the scraper 4. The bottom of the CNC moving table 3 has a mounting groove 402 that engages with the mounting plate 401. The top center of the scraper 4 and the bottom center of the mounting plate 401 are interlocked and matched. The mounting plate 401 is installed to the CNC moving table 3 with screws, and the scraper 4 is also installed to the mounting plate 401 with screws. A guide rod 5 is installed between the two columns 2. The two guide rods 5 are located on the lower sides of the CNC moving table 3, and a connecting rod 6 is installed on one side of the guide rod 5.

[0024] Electric push rods 7 are installed on both sides of the lower part of the machining table 1. The output end of the electric push rod 7 is connected to the lower end of the connecting rod 6. The connecting rod 6 is U-shaped. The upper end of the connecting rod 6 is connected to the lower side wall of the CNC moving table 3. The guide rod 5 passes through the middle of the side end of the CNC moving table 3. A slider 701 is installed above the output end of the electric push rod 7. Slide grooves 702 that slide and match the slider 701 are opened on both sides of the bottom surface of the machining table 1. A placement table 8 is installed in the middle of the surface of the machining table 1. The bottom of the placement table 8 is equipped with a material handling mechanism. The feed tray 801 is larger than the size of the placement table 8. The interior of the feed tray 801 and the bottom side of the placement table 8 form an inner groove. The outer walls of the placement table 8 are all sloped. The inner bottom surface of the feed tray 801 is inclined. The feed tubes 802 are provided on both sides of one end of the feed tray 801. The feed tubes 802 are connected to the interior of the feed tray 801. The front side of the processing table 1 is provided with a material collection box 9. The surface of the placement table 8 is provided with several placement grooves. The printing gravure plate 10 is placed in the middle of the placement groove.

[0025] The CNC moving table 3 and electric linear actuator 7 mentioned above are existing technology products, and their specific structures and functions will not be described in detail here.

[0026] The working principle of this practical application is as follows:

[0027] Refer to the instruction manual appendix Figure 1-5 For this type of gravure printing coating equipment, during use, the output end of the electric push rod 7 is slidably connected to the slide groove 702 on the bottom surface of the processing table 1 via the slider 701, achieving vertical movement. The output end of the electric push rod 7 is connected to the lower end of the U-shaped connecting rod 6, and the upper end of the connecting rod 6 is connected to the lower side wall of the CNC moving table 3. When the electric push rod 7 extends or retracts, it drives the CNC moving table 3 to move horizontally back and forth along the guide rod 5 via the connecting rod 6. The guide rod 5 passes through the middle of the side end of the CNC moving table 3 to ensure smooth lifting and prevent deviation. The scraper 4 has an arc-shaped design, and its upper part is matched with the mounting groove 402 at the bottom of the CNC moving table 3 via the mounting plate 401 and fixed with screws. The middle of the top of the scraper 4 is connected to the mounting plate 401. The bottom center is plugged in to further enhance stability and facilitate the disassembly, cleaning or replacement of the scraper 4. After the CNC moving table 3 descends to the set height, the scraper 4 contacts the printing gravure 10 on the placement table 8. The CNC moving table 3 moves in the horizontal direction, and the scraper 4 evenly scrapes the ink onto the surface of the gravure. Excess ink is scraped to the edge of the gravure. Multiple placement slots are opened on the surface of the placement table 8 to fix the printing gravure 10. The bottom of the placement table 8 is equipped with a feed tray 801, which is larger than the placement table 8 and forms an inner groove. The outer wall of the placement table 8 is designed with a slope. The bottom surface of the feed tray 801 is inclined. Excess ink flows into the inner groove along the slope and is discharged into the collection box 9 through the feed pipes 802 on both sides of one end to realize ink recycling.

[0028] When using this device, ensure all components are securely connected and that the power components, such as the electric push rod 7 and the CNC moving table 3, are functioning properly. Pour an appropriate amount of ink onto the surface of the gravure plate, ensuring the ink viscosity meets printing requirements. Place the printing gravure plate 10 in the placement slot of the placement table 8, ensuring it is firmly fixed. Turn on the power, and the electric push rod 7 will start, driving the CNC moving table 3 down until the scraper 4 contacts the gravure plate via the connecting rod 6. The CNC moving table 3 moves horizontally, and the scraper 4 evenly spreads the ink onto the surface of the gravure plate. Excess ink is scraped to the edge of the gravure plate and flows into the inner groove of the feed tray 801. The ink is discharged into the collection box 9 through the discharge pipe 802 for recycling. When cleaning the scraper 4 is needed... Alternatively, when replacing, loosen the screws between the mounting plate 401 and the CNC moving table 3, as well as the screws between the scraper 4 and the mounting plate 401, to remove the scraper 4. During installation, insert the top center of the new scraper 4 into the bottom center of the mounting plate 401, and then insert the mounting plate 401 into the mounting groove 402 at the bottom of the CNC moving table 3 and fix it with screws. The electric push rod 7 achieves smooth lifting and lowering of the CNC moving table 3 through the connecting rod 6. The guide rod 5 ensures accurate lifting direction. The arc-shaped scraper 4 design, combined with the horizontal movement of the CNC moving table 3, achieves uniform ink coating. The inclined and tilted design of the placement table 8 and the feed tray 801 ensures effective recovery of excess ink and reduces waste.

Claims

1. A gravure printing coating device, comprising a processing table (1), a column (2), a CNC moving table (3), a scraper (4), a guide rod (5), a connecting rod (6), an electric push rod (7), a placement table (8), and a collection box (9), characterized in that, The processing table (1) has four fixed columns (2) at its four corners. A CNC moving table (3) is set directly above the processing table (1). A scraper (4) is installed below the CNC moving table (3). A guide rod (5) is installed between the two columns (2). The two guide rods (5) are located on the lower sides of the CNC moving table (3). A connecting rod (6) is set on one side of the guide rod (5). Electric push rods (7) are set on both sides below the processing table (1). A placement table (8) is set in the middle of the surface of the processing table (1). A material collection box (9) is set on the front side of the processing table (1). Several placement slots are opened on the surface of the placement table (8). A printing gravure plate (10) is placed in the middle of the placement slot. The output end of the electric push rod (7) is connected to the lower end of the connecting rod (6). The connecting rod (6) is arranged in a U-shape. The upper end of the connecting rod (6) is connected to the lower side wall of the CNC moving table (3). The guide rod (5) passes through the middle of the side end of the CNC moving table (3).

2. The coating equipment for gravure printing according to claim 1, characterized in that: The scraper (4) is detachable and is arc-shaped. A mounting plate (401) is provided above the scraper (4). The bottom of the CNC moving table (3) is provided with a mounting groove (402) that engages and matches the mounting plate (401).

3. The coating equipment for gravure printing according to claim 2, characterized in that: The top center of the scraper (4) and the bottom center of the mounting plate (401) are connected by a plug-in fitting. The mounting plate (401) is installed together with the CNC moving table (3) by screws, and the scraper (4) is also installed together with the mounting plate (401) by screws.

4. The coating equipment for gravure printing according to claim 1, characterized in that: A slider (701) is provided above the output end of the electric push rod (7), and a sliding groove (702) matching the slider (701) is provided on both sides of the bottom surface of the processing table (1).

5. The coating equipment for gravure printing according to claim 1, characterized in that: The bottom of the display stand (8) is provided with a feed tray (801), the size of which is larger than that of the display stand (8), and an inner groove is formed between the interior of the feed tray (801) and the bottom side of the display stand (8).

6. The coating equipment for gravure printing according to claim 5, characterized in that: The outer walls of the placement platform (8) are all inclined, the inner bottom surface of the feed tray (801) is inclined, and a feed pipe (802) is provided on both sides of one end of the feed tray (801). The feed pipe (802) is connected to the inside of the feed tray (801).

Images