Semi-soaking corrosion device

Abstract

The invention discloses a semi-soaking corrosion device, and relates to the technical field of printing roller processing, the semi-soaking corrosion device comprises a soaking tank, a plate roller rotating mechanism and a flow stirring paddle, the plate roller rotating mechanism is used for installing a plate roller and driving the plate roller to rotate, and the rotating center line of the plate roller rotating mechanism is parallel to the length direction of the soaking tank; a partition plate is arranged in the soaking tank and is used for vertically partitioning the space in the soaking tank; the partition plate is provided with side plates and a baffle, the baffle is located below the partition plate, the baffle is parallel to the length direction of the soaking tank, and the baffle is used for separating the area below the partition plate and the area outside the partition plate; the side plate is perpendicular to the length direction of the soaking tank and is used for separating an area above the partition plate from an area outside the partition plate, and the side edge of the baffle, the lower edge of the side plate and the inner wall of the soaking tank form a backflow notch; the flow stirring paddle is installed on a roller shaft of the printing roller in the using state and located on the side, away from the partition plate, of the side plate. According to the device, the soaking liquid in the soaking tank can circularly flow up and down, so that the corrosion processing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of printing roller processing technology, and in particular to a semi-immersion etching device. Background Art

[0002] Gravure printing is a printing method in which the entire surface of the printing plate is covered with ink, the ink in the blank area is scraped off, leaving ink only in the grid of the graphic part, and then the ink is transferred to the surface of the substrate to obtain a printed product.

[0003] Most of the gravure printing plates are made on the surface of the plate roller, using a round-on-round printing method. The main body of the existing gravure printing plate roller is a steel roller. The steel roller needs to be immersed in the corrosion tank and rotated by the motor to make the surface of the steel roller evenly contact with the corrosion liquid.

[0004] Although the steel roller can rotate through the corrosive liquid driven by the motor, the flow and diffusion of the corrosive liquid is slow, and the contact probability between the corrosive liquid in the area far away from the surface of the steel roller and the surface of the steel roller is low. The corrosion processing efficiency of the steel roller by the corrosive liquid needs to be improved. Summary of the invention

[0005] In order to improve the processing efficiency of semi-immersion corrosion of steel rollers, the present application provides a semi-immersion corrosion device.

[0006] The semi-immersion corrosion device provided in this application adopts the following technical solution: A semi-immersion etching device comprises an immersion tank, a plate roller rotating mechanism and a diverter paddle, wherein the plate roller rotating mechanism is used to install the plate roller and drive the plate roller to rotate, and the rotation centerline of the plate roller rotating mechanism is parallel to the length direction of the immersion tank; a partition is provided in the immersion tank, and the partition is used to separate the space in the immersion tank up and down; the partition is provided with a side plate and a baffle, and the baffle is located below the partition, and the baffle is parallel to the length direction of the immersion tank, and the baffle is used to separate the area below the partition from the area outside the partition; the side plate is perpendicular to the length direction of the immersion tank, and the side plate is used to separate the area above the partition from the area outside the partition, and the side edge of the baffle forms a reflux gap with the lower edge of the side plate and the inner wall of the immersion tank; the diverter paddle is installed on the roller shaft of the plate roller when in use, and is located on the side of the side plate away from the partition.

[0007] By adopting the above technical solution, when the plate roller is immersed in corrosion, the plate roller is installed on the plate roller rotating mechanism, and the lower part of the plate roller is immersed in the corrosion liquid in the immersion tank. When the plate roller rotating mechanism drives the plate roller to rotate, the outer peripheral surface of the plate roller passes through the corrosion liquid continuously and cyclically. In this process, the roller shaft of the plate roller drives the paddle to rotate, so that the liquid in the immersion tank flows. Since the side plate separates the area above the partition and the area outside the partition, the paddle mainly paddles the liquid below the partition. The liquid below the partition flows to the top of the partition under the obstruction of the baffle and the guidance of the inner wall of the immersion tank. After flowing through the upper surface of the partition, it flows back from the reflux gap to the space where the paddle is located, so that the liquid in the immersion tank circulates and the distribution of the chemical components in the immersion liquid is more uniform. Driven by the paddle, the flow direction of the liquid above the partition is opposite to the movement direction of the lower part of the plate roller, which is conducive to increasing the relative flow speed between the corrosion liquid and the surface of the plate roller, thereby improving the corrosion efficiency.

[0008] Optionally, the partition is a concave arc-shaped plate, the center line of the curvature of the partition is arranged along the length direction of the immersion tank, and the partition and the baffle are transitioned by an arc.

[0009] By adopting the above technical solution, the partition is set as a concave arc plate, so that a gap with a relatively uniform width can be formed between the partition and the outer peripheral surface of the plate roller. The partition and the baffle are transitioned by an arc, which can reduce the resistance of the liquid flow in the immersion tank.

[0010] Optionally, the edges of two opposite sides of the side plate respectively abut against the tank walls of two opposite sides of the soaking tank.

[0011] By adopting the above technical solution, the edges of the two opposite sides of the side plate respectively abut against the tank wall of the soaking tank, which can minimize the stirring of the liquid in the area above the partition by the paddle.

[0012] Optionally, a lower guide plate is provided on the lower surface of the partition, and the lower guide plate is used to guide the immersion liquid to the side of the upper surface of the partition away from the baffle, and the lower guide plate is inclined relative to the length direction of the immersion tank.

[0013] By adopting the above technical solution, the lower guide plate is relatively inclined with respect to the width direction of the immersion tank, so that the lower guide plate can guide the liquid to a position farther away from the paddle, which is conducive to making the flow of the liquid in the immersion tank more complete.

[0014] Optionally, the soaking tank is provided with an arc-shaped guide plate, the center line of curvature of the arc-shaped guide plate is along the length direction of the soaking tank, and the inner concave surface of the arc-shaped guide plate faces the side of the partition away from the baffle.

[0015] By adopting the above technical solution, the arc-shaped guide plate can make the liquid below the partition plate flow to the top of the partition plate more smoothly.

[0016] Optionally, the soaking tank is hingedly provided with a shield, and a side of the shield away from the hinged side is overlapped with the soaking tank, and the shield is located above the deflector paddle.

[0017] By adopting the above technical solution, when the paddle leaves the liquid in the soaking tank, the shield can block the droplets thrown out by the paddle, which is helpful to keep the surrounding environment dry and clean.

[0018] Optionally, the displacement paddle includes two half paddles, each of which includes a half ring, the half rings of the two half paddles are detachably connected, the two half rings are used to jointly hold the roller shaft of the plate roller, and the outer convex surface of the half ring is provided with a paddle.

[0019] By adopting the above technical solution, when the paddle is installed, the roller shaft of the plate roller can be detachably held by the two half rings, so that the paddle can be easily disassembled and assembled.

[0020] Optionally, the paddle further comprises a rubber damping ring, wherein the rubber damping ring is located on the inner side of the two half rings, and the rubber damping ring is provided with a split cut, and the rubber damping ring can be unfolded from the split cut.

[0021] By adopting the above technical solution, the rubber damping ring can increase the friction damping between the half ring and the roller shaft, thereby facilitating the stability of the installation state of the paddle. The rubber damping ring can be unfolded from the split opening, making the rubber damping ring easier to disassemble and assemble.

[0022] Optionally, a liquid storage groove is provided on the outer peripheral surface of the semi-ring along its length direction, and end walls are respectively provided at both ends of the liquid storage groove.

[0023] By adopting the above technical solution, when the paddle of the paddle leaves the soaking liquid and rotates to an upward state, the soaking liquid remaining on the paddle flows to the outer convex surface of the semi-ring and flows into the liquid storage tank, which is helpful to reduce the soaking liquid flowing to the roller shaft of the plate roller.

[0024] Optionally, an internal threaded sleeve is provided on the side of the side plate away from the partition, and the internal threaded sleeve is threadedly connected to a screw rod, the other end of the screw rod abuts against the inner wall of the immersion tank, and a limiting ring is provided on the inner wall of the immersion tank, and one end of the screw rod away from the internal threaded sleeve extends into the inner side of the limiting ring.

[0025] By adopting the above technical solution, the screw can limit the position of the partition along the length direction of the limiting groove, and the limiting ring and the screw can jointly limit the position of the partition along the width direction of the soaking tank. The screw can be telescopically moved, so that the partition and other components on the partition can be taken out of the soaking tank, which is convenient for cleaning the soaking tank, the partition and other components.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The roller shaft of the plate roller drives the paddle to rotate, causing the liquid in the immersion tank to flow. Since the side plate separates the area above the partition from the area outside the partition, the paddle mainly drives the liquid below the partition to flow. The liquid below the partition flows to the top of the partition under the obstruction of the baffle and the guidance of the inner wall of the immersion tank. After flowing through the upper surface of the partition, it flows back from the reflux gap to the space where the paddle is located, thereby causing the liquid in the immersion tank to circulate and the distribution of the chemical components in the immersion liquid to be more even. Driven by the paddle, the flow direction of the liquid above the partition is opposite to the movement direction of the lower part of the plate roller, which is beneficial to increase the relative flow speed between the etching liquid and the surface of the plate roller, thereby improving the etching efficiency.

[0027] 2. When the paddle is installed, the roller shaft of the plate roller is detachably held by two half rings, making the disassembly and assembly of the paddle more convenient.

[0028] 3. The lower guide plate is relatively inclined with respect to the width direction of the immersion tank, so that the lower guide plate can guide the liquid to a position farther from the paddle, which is conducive to making the liquid in the immersion tank flow more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0030] Figure 2 Schematic diagram of the structure of the paddle of this embodiment.

[0031] Figure 3 This is a schematic diagram of the present embodiment for illustrating the installation state of the partition in the immersion tank.

[0032] Figure 4 It is a schematic diagram of the present embodiment for illustrating the positional relationship between the partition plate and the lower guide plate.

[0033] Figure 5 It is a schematic diagram of the present embodiment for illustrating the positional relationship between the partition plate and the arc-shaped guide plate.

[0034] Description of reference numerals: 1. Soaking tank; 2. Plate roller rotating mechanism; 21. Support seat; 22. Three-jaw chuck; 23. Bearing seat; 24. Motor; 25. Sprocket chain transmission assembly; 3. Paddle; 31. Half paddle; 32. Half ring; 321. Liquid storage tank; 33. Paddle; 34. Rubber damping ring; 341. Cutting edge; 4. Shield; 5. Partition plate; 51. Baffle; 52. Side plate; 53. Backflow notch; 54. Arc guide plate; 55. Lower guide plate; 6. Internal threaded sleeve; 61. Screw; 62. Limiting ring; 7. Plate roller. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application embodiment discloses a semi-immersion corrosion device. Figure 1 The semi-immersion etching device includes an immersion tank 1, a plate roller rotating mechanism 2 and two paddles 3. The plate roller rotating mechanism 2 is used to install a plate roller 7 and drive the plate roller 7 to rotate. The rotation center line of the plate roller rotating mechanism 2 is parallel to the length direction of the immersion tank 1; the paddles 3 are respectively installed on the roller shafts at both ends of the plate roller 7 when in use. The paddles 3 can stir the immersion liquid in the immersion tank 1 to make the chemical components in the immersion liquid more evenly distributed.

[0037] Reference Figure 1 The plate roller rotating mechanism 2 includes two support seats 21, and the two support seats 21 are each provided with a three-jaw chuck 22. The two three-jaw chucks 22 are respectively used to clamp the roller shafts at both ends of the plate roller 7. The three-jaw chuck 22 is provided with a bearing seat 23, and the three-axis chuck is installed on the upper surface of the support seat 21 through the bearing seat 23. The plate roller rotating mechanism 2 also includes a motor 24 and a sprocket chain transmission assembly 25. The motor 24 is installed on one of the support seats 21, and the motor 24 is connected to a three-jaw chuck 22 through a sprocket chain assembly. The motor 24 drives the three-jaw chuck 22 and the plate roller 7 to rotate through the sprocket chain assembly.

[0038] Reference Figure 2 The paddle 3 includes two half paddles 31, each of which includes a half ring 32. The half rings 32 of the two half paddles 31 are detachably connected by screws. The two half rings 32 are used to hold the roller shaft of the plate roller 7 together. The outer convex surface of the half ring 32 is provided with a paddle 33. The paddle 33 of the paddle 3 is relatively inclined to the center line direction of the paddle 3. When the paddle 3 rotates, the two paddles 3 force the liquid in the immersion tank 1 to flow in opposite directions.

[0039] The outer circumference of the semi-ring 32 is provided with a liquid storage groove 321 along its length direction. The end surface of the liquid storage groove 321 is in a semicircular or circular shape, and the two ends of the liquid storage groove 321 have end walls. The paddle 33 of the paddle 3 is fixedly connected to the bottom surface of the liquid storage groove 321. When the paddle 33 of the paddle 3 rotates upward, the soaking liquid remaining on the paddle 33 flows into the liquid storage groove 321, so that the soaking liquid remaining on the paddle 33 is not easy to flow to the roller shaft of the plate roller 7.

[0040] The paddle 3 also includes a rubber damping ring 34, which is located on the inner side of the two half rings 32. The rubber damping ring 34 can increase the friction damping between the half rings 32 and the roller shaft of the plate roller 7. The rubber damping ring 34 is provided with a split cut 341, and the rubber damping ring 34 can be unfolded from the split cut 341, so that the rubber damping ring 34 is easier to install.

[0041] Reference Figure 1The soaking tank 1 is provided with two shields 4, and the two shields 4 correspond to the two paddles 3 respectively. One side of the shield 4 is hinged to the soaking tank 1, and the side of the shield 4 away from the hinged side overlaps the soaking tank 1, and the shield 4 is located above the paddles 3. The shield 4 can block the droplets thrown out after the paddles 3 leave the soaking liquid, which is conducive to keeping the surrounding working environment dry and tidy.

[0042] Reference Figure 1 , Figure 3 and Figure 4 A partition 5 is provided in the soaking tank 1. The partition 5 is a concave arc-shaped plate. The center line of curvature of the partition 5 is arranged along the length direction of the soaking tank 1. The partition 5 is used to divide the space in the soaking tank 1 up and down; the partition 5 is provided with a baffle 51 and two side plates 52. The baffle 51 is located below the partition 5. The baffle 51 is parallel to the length direction of the soaking tank 1. The partition 5 and the baffle 51 are transitioned by an arc. The baffle 51 is used to separate the area below the partition 5 from the area outside the partition 5.

[0043] Two side plates 52 are provided and are respectively located on two opposite sides of the partition 5. The side plates 52 are perpendicular to the length direction of the soaking tank 1. The edges of the two opposite sides of the side plates 52 respectively abut against the tank walls of the two opposite sides of the soaking tank 1. The side plates 52 are used to separate the area above the partition 5 from the area outside the partition 5. When the two paddles 3 are installed on the roller shaft of the plate roller 7, the two side plates 52 are located between the two paddles 3, that is, the paddles 3 are located on the side of the side plate 52 away from the partition 5. The side edge of the baffle 51, the lower edge of the side plate 52 and the inner wall of the soaking tank 1 form a backflow gap 53.

[0044] The roller shaft of the plate roller 7 drives the paddle 3 to rotate, so that the liquid in the immersion tank 1 flows. Since the side plate 52 separates the area above the partition 5 from the area outside the partition 5, the paddle 3 mainly stirs the liquid below the partition 5. The liquid below the partition 5 flows to the top of the partition 5 under the obstruction of the baffle 51 and the guidance of the inner wall of the immersion tank 1. After flowing through the upper surface of the partition 5, it flows back from the reflux notch 53 to the space where the paddle 3 is located, so that the liquid in the immersion tank 1 circulates. Driven by the paddle 3, the flow direction of the liquid above the partition 5 is opposite to the movement direction of the lower part of the plate roller 7, which is conducive to increasing the relative flow speed between the etching liquid and the surface of the plate roller 7, thereby helping to improve the etching efficiency.

[0045] Reference Figure 3 and Figure 5 The soaking tank 1 is provided with an arc-shaped guide plate 54, the curvature center line of the arc-shaped guide plate 54 is along the length direction of the soaking tank 1, and the inner concave surface of the arc-shaped guide plate 54 faces the side of the partition 5 away from the baffle 51. The arc-shaped guide plate 54 can make the soaking liquid below the partition 5 flow to the top of the partition 5 more smoothly.

[0046] Reference Figure 5A lower guide plate 55 is provided on the lower surface of the partition 5. The lower guide plate 55 is used to guide the immersion liquid to the side of the upper surface of the partition 5 away from the baffle 51. The lower guide plate 55 is relatively inclined with respect to the length direction of the immersion tank 1, so that the lower guide plate 55 can guide the liquid to a position farther away from the paddle 3, which is conducive to making the flow of the liquid in the immersion tank 1 more sufficient.

[0047] The lower guide plate 55 and the baffle plate 51 jointly support the partition plate 5. The guide plate and the baffle plate 51 jointly support the partition plate 5, so that the partition plate 5 is kept in an overhead state in the soaking tank 1, so that a gap for liquid flow can be formed between the partition plate 5 and the inner wall of the soaking tank 1.

[0048] Reference Figure 3 Two internal threaded sleeves 6 are fixedly provided on one side of each side plate 52 away from the partition 5. The two internal threaded sleeves 6 are arranged at intervals in the horizontal direction. The internal threaded sleeve 6 is threadedly connected with a screw 61. The other end of the screw 61 abuts against the inner wall of the immersion tank 1. The inner wall of the immersion tank 1 is provided with two limiting rings 62. The two limiting rings 62 correspond to the two screws 61 respectively. One end of the screw 61 away from the internal threaded sleeve 6 extends into the inner side of the limiting ring 62, and the outer peripheral surface of the screw 61 is provided with a wrench position.

[0049] The screw 61 can limit the position of the partition 5 along the length direction of the limiting groove, and the limiting ring 62 and the screw 61 can jointly limit the position of the partition 5 along the width direction of the soaking tank 1. The screw 61 can be telescopically moved, so that the partition 5 and other components on the partition 5 can be taken out of the soaking tank 1, which is convenient for cleaning the soaking tank 1 and the partition 5 and other components.

[0050] When the semi-immersion etching device is used, the lower part of the plate roller 7 is immersed in the soaking liquid in the soaking tank 1, and the plate roller rotating mechanism 2 drives the plate roller 7 to rotate continuously to perform the semi-immersion etching process. In this process, the roller shaft of the plate roller 7 drives the paddle 3 to rotate, and the paddle 3 drives the soaking liquid to flow.

[0051] The implementation principle of a semi-immersion etching device in an embodiment of the present application is as follows: when the plate roller rotating mechanism 2 drives the plate roller 7 to rotate, the outer peripheral surface of the plate roller 7 is continuously and cyclically passed through the etching liquid. In this process, the roller shaft of the plate roller 7 drives the two paddles 3 to rotate, so that the liquid in the immersion tank 1 flows. Under the guidance of the partition 5, the baffle 51 and the side plate 52 and other components, the immersion liquid circulates up and down the partition 5, so that the distribution of the chemical components in the immersion liquid is more uniform, and the flow direction of the liquid above the partition 5 is opposite to the movement direction of the lower part of the plate roller 7, which is conducive to increasing the relative flow speed between the etching liquid and the surface of the plate roller 7, thereby helping to improve the etching efficiency.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A semi-immersion corrosion device, characterized in that: The invention comprises an immersion tank (1), a plate roller rotating mechanism (2) and a paddle (3), wherein the plate roller rotating mechanism (2) is used to install a plate roller (7) and drive the plate roller (7) to rotate, and the rotation center line of the plate roller rotating mechanism (2) is parallel to the length direction of the immersion tank (1); a partition (5) is provided in the immersion tank (1), and the partition (5) is used to separate the space in the immersion tank (1) from top to bottom; the partition (5) is provided with a side plate (52) and a baffle (51), and the baffle (51) is located below the partition (5), and the baffle (51) is parallel to the length direction of the immersion tank (1). In the immersion tank (1), the baffle (51) is used to separate the area below the baffle (5) from the area outside the baffle (5); the side plate (52) is perpendicular to the length direction of the immersion tank (1), the side plate (52) is used to separate the area above the baffle (5) from the area outside the baffle (5), and the side edge of the baffle (51) and the lower edge of the side plate (52) and the inner wall of the immersion tank (1) form a reflux gap (53); the paddle (3) is mounted on the roller shaft of the plate roller (7) in the use state and is located on the side of the side plate (52) away from the baffle (5).

2. A semi-immersion corrosion device according to claim 1, characterized in that: The partition (5) is a concave arc-shaped plate, the center line of the curvature of the partition (5) is arranged along the length direction of the soaking tank (1), and the partition (5) and the baffle (51) are transitioned by an arc.

3. A semi-immersion corrosion device according to claim 1, characterized in that: The edges of two opposite sides of the side plate (52) respectively abut against the tank walls of two opposite sides of the soaking tank (1).

4. A semi-immersion corrosion device according to claim 1, characterized in that: A lower guide plate (55) is provided on the lower surface of the partition (5), and the lower guide plate (55) is used to guide the soaking liquid to a side of the upper surface of the partition (5) away from the baffle (51), and the lower guide plate (55) is inclined relative to the length direction of the soaking tank (1).

5. A semi-immersion corrosion device according to claim 1, characterized in that: The soaking tank (1) is provided with an arc-shaped guide plate (54), the curvature centerline of the arc-shaped guide plate (54) is along the length direction of the soaking tank (1), and the inner concave surface of the arc-shaped guide plate (54) faces the side of the partition plate (5) away from the baffle plate (51).

6. A semi-immersion corrosion device according to claim 1, characterized in that: The soaking tank (1) is hingedly provided with a shield (4), and a side of the shield (4) away from the hinged side overlaps the soaking tank (1), and the shield (4) is located above the paddle (3).

7. A semi-immersion corrosion device according to claim 1, characterized in that: The flow-displacing paddle (3) comprises two half-paddles (31), the half-paddles (31) comprising a half-ring (32), the half-rings (32) of the two half-paddles (31) being detachably connected, the two half-rings (32) being used to jointly hold the roller shaft of the plate roller (7), and the outer convex surface of the half-ring (32) is provided with a paddle (33).

8. A semi-immersion corrosion device according to claim 7, characterized in that: The paddle (3) further comprises a rubber damping ring (34), wherein the rubber damping ring (34) is located inside the two half rings (32), and the rubber damping ring (34) is provided with a splitting opening (341), and the rubber damping ring (34) can be deployed from the splitting opening (341).

9. A semi-immersion corrosion device according to claim 7, characterized in that: The outer peripheral surface of the semi-ring (32) is provided with a liquid storage groove (321) along its length direction, and both ends of the liquid storage groove (321) respectively have end walls.

10. The semi-immersion corrosion device according to claim 1, characterized in that: An internal threaded sleeve (6) is provided on a side of the side plate (52) away from the partition plate (5); a screw rod (61) is threadedly connected to the internal threaded sleeve (6); the other end of the screw rod (61) abuts against the inner wall of the soaking tank (1); a limiting ring (62) is provided on the inner wall of the soaking tank (1); an end of the screw rod (61) away from the internal threaded sleeve (6) extends into the inner side of the limiting ring (62).

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