A semi-closed gravure cylinder plate making device

Abstract

The utility model discloses a half -closed recessed cylinder plate making device, including recessed cylinder, box, ink scraper, cleaning scraper and drive mechanism, and the upper end of box is open, and the recessed cylinder is rotatably arranged inside, and the recessed cylinder is located the open box of upper side wall and projects, and the drive mechanism is installed outside the side wall of box in the radial left side of recessed cylinder, and the ink scraper is connected to the moving end of drive mechanism, and the drive mechanism is used for driving the ink scraper to make the movement of approaching or moving away from the recessed cylinder along the upper end of box side wall, and the vertical sliding cavity is seted up in the left side wall of box, and the cleaning scraper is slidably installed in the sliding cavity, and the spring for driving the cleaning scraper to move upwards is connected between the lower end of cleaning scraper and the bottom of sliding cavity, and the upper end of cleaning scraper is used for the bottom surface movement of adhering the ink scraper, and the chute that inclines to right and downward is seted up on the upper end of the side wall of box right to cleaning scraper. The utility model solves the problem that the open recessed cylinder printing device exists a large amount of ink directly exposed in the air.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing technology, specifically to a semi-enclosed gravure cylinder plate-making device. Background Technology

[0002] Currently, most gravure cylinder printing equipment has an open structure, which facilitates the disassembly and assembly of the doctor blade. However, during the use of open gravure cylinder printing equipment, a large amount of ink will be directly exposed to the air. This will cause the solvent to evaporate quickly, thus affecting the viscosity of the ink and the printing quality. In addition, the large amount of ink escaping will exacerbate the loss of raw materials and cause air pollution, which is not conducive to people's work and use.

[0003] Therefore, there is an urgent need for a semi-enclosed gravure cylinder plate-making device to solve the problem of a large amount of ink being directly exposed to the air in open gravure cylinder printing devices. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a semi-enclosed gravure cylinder plate-making device, which solves the problem of a large amount of ink being directly exposed to the air in open gravure cylinder printing devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A semi-enclosed gravure cylinder plate-making device includes a gravure cylinder, a housing, a doctor blade, a cleaning doctor blade, and a drive mechanism. The upper end of the housing is open, and the gravure cylinder is rotatably mounted inside the housing. The upper side wall of the gravure cylinder extends out of the housing from the open end. The drive mechanism is installed on the outer side wall of the housing located radially to the left of the gravure cylinder. The moving end of the drive mechanism is connected to the doctor blade. The drive mechanism is used to drive the doctor blade to move closer to or away from the gravure cylinder along the upper end of the side wall of the housing. A vertical sliding cavity is also provided in the left side wall of the housing. The cleaning doctor blade is slidably mounted in the sliding cavity. A spring is connected between the lower end of the cleaning doctor blade and the bottom of the sliding cavity to drive the cleaning doctor blade to move upward. The upper end of the cleaning doctor blade is used to move in contact with the bottom surface of the doctor blade. A right-sloping and downward-inclined chute is provided on the upper end of the right side wall of the housing.

[0006] To optimize the above technical solution, the specific measures also include: Furthermore, the upper end of the cleaning scraper is provided with an extension block extending above the chute, and the upper right side of the cleaning scraper and the extension block is provided with a second oblique blade surface that is inclined to the right and downward. The upper end of the second oblique blade surface is used to fit against the bottom surface of the scraper blade, and the lower end of the second oblique blade surface extends to be flush with the inner wall of the box.

[0007] Furthermore, the lower end of the extension block is configured as a third oblique cutting surface that fits against the upper surface of the chute.

[0008] Furthermore, the upper left side of the cleaning scraper and the extension block is configured as a first oblique blade surface that faces left and downwards.

[0009] Furthermore, the drive mechanism includes a mounting base, a drive motor, a lead screw, and a nut. The mounting base is provided on the outer side wall of the housing. The drive motor is mounted on the left side of the mounting base away from the housing. The output shaft of the drive motor is connected to one end of the lead screw. The other end of the lead screw is rotatably mounted on the side wall of the housing. The drive motor is used to drive the lead screw to rotate. A nut is threaded onto the lead screw. The lower end of the nut is slidably mounted on the mounting base, and the upper end of the nut is used to connect the doctor blade.

[0010] Furthermore, a baffle is provided at the upper end of the box side wall located on the radial right side of the gravure roller, and the baffle is located between the gravure roller and the box side wall.

[0011] Furthermore, the lower end face of the baffle is provided with an upwardly recessed arc-shaped groove.

[0012] Furthermore, a disassembly / removal seat is detachably installed on the upper end of the side wall of the box located on the radial right side of the gravure roller, and the baffle is disposed on the disassembly / removal seat.

[0013] Furthermore, the inner bottom of the box body is an arc shape that matches the curvature of the intaglio roller.

[0014] Furthermore, the side wall of the housing is provided with an oil inlet and an oil outlet that communicate with the interior.

[0015] The beneficial effects of this utility model are: This invention utilizes an open-top box with a gravure cylinder to form a semi-enclosed structure. Only the portion of the gravure cylinder's sidewall used for printing with the pressure roller extends out of the box, reducing the area of ​​ink exposed to the outside air. Simultaneously, the drive mechanism and doctor blade allow the doctor blade to move along the upper sidewall of the box towards or away from the gravure cylinder. This allows for adjustment of the doctor blade's distance from the gravure cylinder during use, and further reduces ink exposure by bringing the doctor blade closer to the cylinder. This solves the problem of large amounts of ink being directly exposed to air in open gravure cylinder printing devices.

[0016] This invention also incorporates a cleaning blade and a spring. When the doctor blade is away from the gravure cylinder, the spring drives the cleaning blade to move upward and scrape off the ink on the doctor blade along its bottom surface. This cleans the doctor blade and avoids ink waste. The ink scraped off by the cleaning blade can then flow back into the box from the chute. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a semi-enclosed gravure cylinder plate-making device proposed in this utility model. Figure 2 This is a schematic diagram showing the movement of the doctor blade in a semi-enclosed gravure cylinder plate-making device proposed in this utility model. Figure 3 This is a schematic diagram of the cleaning scraper of a semi-enclosed gravure cylinder plate-making device proposed in this utility model. Figure 4 This invention provides a schematic diagram of the cleaning scraper of a semi-enclosed gravure cylinder plate-making device. Figure 1 ; Figure 5 This invention provides a schematic diagram of the cleaning scraper of a semi-enclosed gravure cylinder plate-making device. Figure 2 ; Figure 6 This invention provides a schematic diagram of the structure of a baffle in a semi-enclosed gravure cylinder plate-making device. Figure 1 ; Figure 7 This invention provides a schematic diagram of the structure of a baffle in a semi-enclosed gravure cylinder plate-making device. Figure 2 ; Figure 8 This invention provides a schematic diagram of the structure of a baffle in a semi-enclosed gravure cylinder plate-making device. Figure 3 ; Figure 9 This is a schematic diagram illustrating the use of a semi-enclosed gravure cylinder plate-making device proposed in this utility model; Figure 10 This is a schematic diagram of the housing of a semi-enclosed gravure roller plate-making device proposed in this utility model.

[0018] Reference numerals: 1. Gravure cylinder, 2. Rotating shaft, 3. Housing, 31. Baffle, 311. Mounting base, 32. Sliding cavity, 4. Cleaning scraper, 41. First oblique blade, 42. Second oblique blade, 43. Third oblique blade, 5. Spring, 6. Mounting base, 7. Drive motor, 8. Lead screw, 9. Nut, 10. Ink scraper. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] As attached Figure 1As shown in the figure, a semi-enclosed gravure cylinder plate-making device according to an embodiment of the present invention includes a gravure cylinder 1, a housing 3, a doctor blade 10, a cleaning doctor blade 4, and a drive mechanism. The upper end of the housing 3 is open, and the gravure cylinder 1 is rotatably mounted inside the housing 3 via a rotating shaft 2. The gravure cylinder 1 extends out of the housing 3 from the upper side wall through the open end, as shown in the attached figure. Figure 9 As shown, a drive mechanism is installed on the outer side wall of the housing 3 located on the radial left side of the gravure cylinder 1 for printing with the pressure roller. The moving end of the drive mechanism is connected to the doctor blade 10. The drive mechanism is used to drive the doctor blade 10 to move closer to or away from the gravure cylinder 1 along the upper end of the side wall of the housing 3. A vertical sliding cavity 32 is also provided in the side wall on the left side of the housing 3. A cleaning doctor blade 4 is slidably installed in the sliding cavity 32. A spring 5 is connected between the lower end of the cleaning doctor blade 4 and the bottom of the sliding cavity 32 to drive the cleaning doctor blade 4 to move upward. The upper end of the cleaning doctor blade 4 is used to move in contact with the bottom surface of the doctor blade 10. A chute that slopes to the right and downwards is provided on the upper end of the side wall of the housing 3 on the right side of the cleaning doctor blade 4.

[0021] This invention utilizes a semi-enclosed structure formed by an open-top box 3 and a gravure cylinder 1. This allows only the portion of the gravure cylinder 1 used for printing with the pressure roller to extend out of the box 3, reducing the area of ​​ink exposed to the outside air. Simultaneously, the drive mechanism and doctor blade 10 allow the doctor blade 10 to move closer to or further away from the gravure cylinder 1 along the upper side wall of the box 3. This allows for adjustment of the distance between the doctor blade 10 and the gravure cylinder 1 during use, and further reduces the area of ​​ink exposed to the outside air by bringing the doctor blade 10 closer to the gravure cylinder 1. This solves the problem of large amounts of ink being directly exposed to the air in open gravure cylinder printing devices.

[0022] This utility model also uses the cleaning blade 4 and spring 5 to drive the cleaning blade 4 to move upward when the doctor blade 10 is away from the gravure cylinder 1, and scrape off the ink on the doctor blade 10 along the bottom surface of the doctor blade 10. This not only cleans the doctor blade 10, but also avoids ink waste. The ink scraped off by the cleaning blade 4 can flow back into the box 3 from the chute.

[0023] As attached Figure 2 Appendix Figure 3 and attached Figure 4As shown, in a specific embodiment based on the above, the upper end of the cleaning blade 4 is provided with an extension block extending above the chute. The upper right side of the cleaning blade 4 and the extension block is provided with a second inclined blade surface 42 that faces right and slopes downward. The upper end of the second inclined blade surface 42 is used to fit against the bottom surface of the ink scraper 10, and the lower end of the second inclined blade surface 42 extends to be flush with the inner wall of the housing 3. In this way, the ink scraped by the cleaning blade 4 can be smoothly returned to the inside of the housing 3 by the setting of the extension block and the second inclined blade surface 42.

[0024] The lower end of the aforementioned extension block is designed to conform to the third oblique blade surface 43 of the upper surface of the chute. This prevents ink from accumulating in the chute and ensures that the cleaning blade 4 remains in contact with the chute when it retracts with the extension block.

[0025] Among them, the upper left side of the cleaning blade 4 and the extension block is provided as a first oblique blade surface 41 that is inclined to the left and downward. The inclination of the first oblique blade surface 41 is consistent with the inclination of the blade surface at the end of the doctor blade 10, and is used to adhere to and scrape the ink off the blade surface at the end of the doctor blade 10.

[0026] As attached Figure 5 As shown, in another specific embodiment based on the above, the drive mechanism includes a mounting base 6, a drive motor 7, a lead screw 8, and a nut 9. The mounting base 6 is located on the outer side wall of the housing 3. The drive motor 7 is mounted on the left side of the mounting base 6 away from the housing 3. The output shaft of the drive motor 7 is connected to one end of the lead screw 8, and the other end of the lead screw 8 is rotatably mounted on the side wall of the housing 3. The drive motor 7 drives the lead screw 8 to rotate. A nut 9 is threaded onto the lead screw 8. The lower end of the nut 9 is slidably mounted on the mounting base 6, and the upper end of the nut 9 is used to connect the doctor blade 10. Thus, through the configuration of the drive motor 7, lead screw 8, and nut 9, in use, the drive motor 7 drives the lead screw 8 to rotate in both directions, thereby driving the nut 9 to slide along the groove on the mounting base 6, carrying the doctor blade 10 for left-right adjustment and movement. In this solution, the doctor blade 10 and the nut 9 can be connected in a detachable manner, such as by bolts, to facilitate the replacement of the doctor blade 10.

[0027] As attached Figure 6 As shown, in another specific embodiment based on the above, a baffle 31 is provided at the upper end of the side wall of the housing 3 located on the radial right side of the gravure cylinder 1. The baffle 31 is located between the gravure cylinder 1 and the side wall of the housing 3. In this way, the ink is blocked more effectively without interfering with the rotation of the gravure cylinder 1.

[0028] The lower end face of the aforementioned baffle 31 is provided with an upwardly recessed arc-shaped groove. This arc-shaped groove helps to contain any escaping ink.

[0029] As attached Figure 7 and attached Figure 8As shown, a disassembly / removal seat 311 is detachably installed on the upper end of the side wall of the housing 3 located on the radial right side of the gravure roller 1, and a baffle 31 is disposed on the disassembly / removal seat 311. This facilitates the disassembly / removal of the baffle 31 as needed via the disassembly / removal seat 311. In this design, the disassembly / removal seat 311 and the side wall of the housing 3 can be connected by mortise and tenon joints.

[0030] Among them, the baffle 31 mentioned above has a rounded chamfer at the upper end near the gravure roller 1.

[0031] As attached Figure 10 As shown, in another specific embodiment based on the above, the inner bottom of the housing 3 is an arc shape consistent with the curvature of the gravure roller 1. This reduces the amount of ink used per cycle, thereby reducing waste when changing to different colors of ink.

[0032] In another specific embodiment based on the above, the side wall of the housing 3 is provided with an oil inlet and an oil outlet that communicate with the interior.

[0033] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0034] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A semi-enclosed gravure cylinder plate-making device, characterized in that: The assembly includes a gravure cylinder (1), a housing (3), a doctor blade (10), a cleaning doctor blade (4), and a drive mechanism. The upper end of the housing (3) is open, and the gravure cylinder (1) is rotatably mounted inside the housing (3). The upper side wall of the gravure cylinder (1) extends out of the housing (3) from the open. The drive mechanism is installed on the outer side wall of the housing (3) located on the radial left side of the gravure cylinder (1). The moving end of the drive mechanism is connected to the doctor blade (10), and the drive mechanism is used to drive the doctor blade (10) to move along the upper end of the side wall of the housing (3). The movement of the cleaning blade (4) towards or away from the gravure roller (1) is accompanied by a vertical sliding cavity (32) on the left side wall of the housing (3). A cleaning blade (4) is slidably installed in the sliding cavity (32). A spring (5) for driving the cleaning blade (4) to move upward is connected between the lower end of the cleaning blade (4) and the bottom of the sliding cavity (32). The upper end of the cleaning blade (4) is used to move in contact with the bottom surface of the ink scraper (10). A chute that slopes to the right and downwards is provided on the upper end of the side wall of the housing (3) on the right side of the cleaning blade (4).

2. The semi-enclosed gravure cylinder plate-making device according to claim 1, characterized in that: The upper end of the cleaning scraper (4) is provided with an extension block extending to the top of the chute. The upper right side of the cleaning scraper (4) and the extension block is provided with a second oblique blade surface (42) that is inclined to the right and downward. The upper end of the second oblique blade surface (42) is used to fit against the bottom surface of the ink scraper (10), and the lower end of the second oblique blade surface (42) extends to be flush with the inner wall of the box (3).

3. The semi-enclosed gravure cylinder plate-making device according to claim 2, characterized in that: The lower end of the extension block is configured as a third oblique cutting surface (43) that fits against the upper surface of the chute.

4. The semi-enclosed gravure cylinder plate-making device according to claim 2, characterized in that: The cleaning scraper (4) and the upper left side of the extension block are configured as a first oblique blade surface (41) that is inclined to the left and downward.

5. A semi-enclosed gravure cylinder plate-making device according to claim 1, characterized in that: The drive mechanism includes a mounting base (6), a drive motor (7), a lead screw (8), and a nut (9). The mounting base (6) is provided on the outside of the side wall of the housing (3). The drive motor (7) is installed on the left side of the mounting base (6) away from the housing (3). The output shaft of the drive motor (7) is connected to one end of the lead screw (8). The other end of the lead screw (8) is rotatably mounted on the side wall of the housing (3). The drive motor (7) is used to drive the lead screw (8) to rotate. The nut (9) is threaded onto the lead screw (8). The lower end of the nut (9) is slidably mounted on the mounting base (6) and the upper end of the nut (9) is used to connect the doctor blade (10).

6. The semi-enclosed gravure cylinder plate-making device according to claim 1, characterized in that: A baffle (31) is provided at the upper end of the side wall of the box (3) located on the radial right side of the gravure roller (1), and the baffle (31) is located between the gravure roller (1) and the side wall of the box (3).

7. A semi-enclosed gravure cylinder plate-making device according to claim 6, characterized in that: The lower end face of the baffle (31) is provided with an upwardly recessed arc-shaped groove.

8. A semi-enclosed gravure cylinder plate-making device according to claim 6, characterized in that: A disassembly seat (311) is detachably installed on the upper end of the side wall of the box (3) located on the radial right side of the intaglio roller (1), and the baffle (31) is arranged on the disassembly seat (311).

9. A semi-enclosed gravure cylinder plate-making device according to claim 1, characterized in that: The bottom inner side of the box (3) is an arc shape that matches the curvature of the intaglio roller (1).

10. A semi-enclosed gravure cylinder plate-making device according to claim 1, characterized in that: The side wall of the box (3) is provided with an oil inlet and an oil outlet that communicate with the interior.

Images