A printing plate cleaning mechanism

Abstract

The application provides a printing plate cleaning mechanism for printing, and relates to the technical field of printing. The printing plate cleaning mechanism for printing comprises a mounting frame, bearing mechanisms are arranged on the two sides of the mounting frame, a cleaning mechanism is arranged in the mounting frame, the cleaning mechanism comprises a filter box, a first water pump, a spraying pipe and a spray head, the filter box is slidingly connected to the inner wall surface of the mounting frame, the first water pump is fixedly installed on one side of the mounting frame, the spraying pipe is fixedly installed on the upper surface of the first water pump, the other end of the spraying pipe is fixedly installed on one side of the inner wall of the mounting frame, the spraying pipe penetrates one side of the mounting frame and is fixedly connected to one side of the mounting frame, and the spray head is fixedly installed on the surface of the spraying pipe. The printing plate cleaning mechanism can filter the used cleaning liquid, remove solid impurities in the cleaning liquid, improve the utilization rate of the cleaning liquid, reduce the production cost, and make the device more environmentally friendly.

Description

Technical Field

[0001] This application relates to the field of printing technology, specifically to a printing plate cleaning mechanism. Background Technology

[0002] Printing refers to the technical process of transferring graphic and textual information from an original manuscript to the surface of a substrate (such as paper, plastic, metal, etc.) using printing plates or other methods. Its core is to achieve the mass reproduction and dissemination of graphic and textual information.

[0003] For example, Chinese utility model patent publication number "CN216101053U" discloses a plate cleaning device for digital plate making based on gravure printing. This utility model can perform preliminary cleaning of the printing plate roller by spraying cleaning agent through nozzles, removing ink and residue. Waste liquid can be collected through a waste liquid collection tank. After the preliminary cleaning is completed, the extension and retraction of electric telescopic rod I can drive the slide to move, which in turn drives the lifting frame to move, so that the lifting frame is directly above the ultrasonic cleaning box. Electric telescopic rod II can drive the lifting frame to move up and down, sending the printing plate roller fixed on the lifting frame into the ultrasonic cleaning box. The ultrasonic cleaning box can thoroughly clean the surface of the printing plate roller, improving the cleaning quality. After cleaning for two minutes, electric telescopic rod II pushes the lifting frame to rise, and the gas heating chamber can heat the gas and spray it out through the gas nozzle, which can air dry the liquid on the surface of the printing plate roller without wiping, avoiding damage to the surface of the printing plate roller.

[0004] The aforementioned patents improve cleaning efficiency and quality to a certain extent, save labor, and avoid damage to the surface of the printing roller. However, after the cleaning operation is completed, the cleaning solution is simply collected through a waste liquid collection tank. Since the residue on the surface of the printing roller contains a large number of solid impurities such as ink particles and paper fibers, these impurities will enter the collection tank along with the cleaning solution. If the collected waste liquid is directly reused for cleaning, the impurities will adhere to the surface of the printing roller, making it difficult to achieve the ideal cleaning effect. It may also cause secondary scratches on the surface of the roller during subsequent cleaning processes, affecting the printing quality. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this application provides a printing plate cleaning mechanism that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this application provides the following technical solution: a printing plate cleaning mechanism, comprising a mounting frame, with bearing mechanisms on both sides of the mounting frame for placing and moving the printing plate, and a cleaning mechanism inside the mounting frame for cleaning the printing plate. The cleaning mechanism includes a filter box, a primary water pump, a spray pipe, and a nozzle. The filter box is slidably connected to the inner wall surface of the mounting frame, the primary water pump is fixedly installed on one side of the mounting frame, the spray pipe is fixedly installed on the upper surface of the primary water pump, the other end of the spray pipe is fixedly installed on one side of the inner wall of the mounting frame, the spray pipe passes through one side of the mounting frame and is fixedly connected to one side of the mounting frame, and the nozzle is fixedly installed on the surface of the spray pipe.

[0009] By adopting the above technical solution, the cleaning solution can be filtered after use to remove solid impurities, improving the utilization rate of the cleaning solution, reducing production costs, and making the equipment more environmentally friendly. The carrying mechanism can flexibly adjust its position according to the size and thickness of the printing plate, ensuring the stability of the printing plate during the cleaning process and improving the convenience and reliability of cleaning.

[0010] Preferably, mounting boxes are fixedly installed on both sides of the mounting frame, and there are two mounting boxes. Threaded rods are rotatably connected to both ends of the inner wall of the mounting box, and sliding rods are fixedly installed to both ends of the inner wall of the other mounting box. A motor is fixedly installed on the lower surface of the mounting box, and the output shaft of the motor is fixedly connected to the threaded rods.

[0011] By adopting the above technical solution, the screw rod can be driven by a motor to rotate, providing power for the movement of the bearing mechanism, and the sliding rod can be used to ensure the stability of the movement.

[0012] Preferably, the slide bar surface is slidably connected to a slider, and there are two sliders. The other slider is threadedly connected to the surface of the threaded bar. Connecting rods are fixedly installed on both sides of the slider, and a placement frame is fixedly installed on one side of the connecting rod.

[0013] By adopting the above technical solution, the movement of the slider on the threaded rod and slide bar can drive the placement frame to move, thereby realizing the lifting and lowering of the printing plate, which facilitates the placement and cleaning of printing plates of different sizes.

[0014] Preferably, a partition is fixedly installed on the inner wall surface of the mounting bracket, an ultrasonic generator is fixedly installed on the upper surface of the partition, a drain pipe is fixedly installed on the lower surface of the partition, and an electrically controlled valve is fixedly installed on the surface of the drain pipe.

[0015] By adopting the above technical solution, ultrasonic waves can be generated by an ultrasonic generator to clean the printing plate more thoroughly; the discharge and flow of cleaning fluid can be controlled by a drain pipe and an electrically controlled valve, which facilitates the control of the cleaning process.

[0016] Preferably, a connecting block is fixedly installed on one side of the filter box, an mounting block is fixedly installed on one side of the mounting bracket, a gear is rotatably connected to one side of the inner wall of the mounting block, a rack is slidably connected to one side of the inner wall of the mounting block, the rack meshes with the gear, and a knob is rotatably connected to one side of the mounting block, the knob is fixedly connected to the gear.

[0017] By adopting the above technical solution, the gear can be rotated by turning the knob, which in turn moves the rack, making it easy to fix and disassemble the filter box and clean the impurities inside the filter box.

[0018] Preferably, a sliding plate is fixedly installed on one side of the rack, the sliding plate passes through one side of the mounting block and is slidably connected to one side of the mounting block, and a limit block is fixedly installed on one side of the sliding plate, the limit block being slidably connected to the inner wall surface of the connecting block.

[0019] By adopting the above technical solution, the filter box can be further fixed by the cooperation of the sliding plate and the limiting block, thus ensuring the stability of the filter box during operation.

[0020] Preferably, a spring is fixedly installed on one side of the inner wall of the sliding plate, and the other end of the spring is fixedly connected to one side of the inner wall of the mounting block. A water tank is fixedly installed on one side of the mounting frame, a second water pump is fixedly installed on the upper surface of the water tank, and an injection pipe is fixedly installed on the upper surface of the second water pump. The injection pipe passes through one side of the mounting frame and is fixedly connected to one side of the mounting frame.

[0021] By adopting the above technical solution, the sliding plate and limit block can be automatically reset by the spring force, which is convenient for operation; the water tank and the No. 2 water pump provide cleaning fluid to the device to ensure the smooth progress of the cleaning work.

[0022] (III) Beneficial Effects

[0023] This application provides a printing plate cleaning mechanism. It has the following beneficial effects:

[0024] 1. This printing plate cleaning mechanism solves the problem of previous digital plate cleaning devices for gravure printing, where the cleaning fluid was simply collected in a waste liquid collection tank after cleaning. Since the residue on the printing plate roller surface contains a large amount of solid impurities such as ink particles and paper fibers, these impurities would enter the collection tank along with the cleaning fluid. If the collected waste fluid was directly reused for cleaning, the impurities would adhere to the printing plate roller surface, making it difficult to achieve the desired cleaning effect. Furthermore, it might cause secondary scratches on the roller surface during subsequent cleaning processes, affecting printing quality. This new mechanism filters the used cleaning fluid to remove solid impurities, improving the utilization rate of the cleaning fluid, reducing production costs, and making the device more environmentally friendly.

[0025] 2. This printing plate cleaning mechanism is equipped with a support mechanism. A motor drives a threaded rod to rotate, causing a slider to move on the threaded rod and slide bar, which in turn drives the placement frame to rise and fall. This allows for flexible adjustment of the position according to the size and thickness of the printing plate, ensuring the stability of the printing plate during the cleaning process and improving the convenience and reliability of cleaning. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the main appearance structure of this application;

[0028] Figure 2 This is a schematic diagram of the rear view structure of this application;

[0029] Figure 3 This is a schematic diagram of the internal structure of the mounting bracket in this application;

[0030] Figure 4 This is a schematic diagram of the supporting structure of this application;

[0031] Figure 5 This is a schematic diagram of the filter cartridge structure of this application;

[0032] Figure 6 This is a schematic diagram of the internal structure of the mounting block in this application.

[0033] In the diagram: 1. Mounting bracket; 2. Bearing mechanism; 201. Mounting box; 202. Threaded rod; 203. Sliding rod; 204. Slider; 205. Motor; 206. Connecting rod; 207. Placement frame; 3. Cleaning mechanism; 301. Partition plate; 302. Ultrasonic generator; 303. Drain pipe; 304. Electrically controlled valve; 305. Filter box; 306. No. 1 water pump; 307. Spray pipe; 308. Spray head; 309. Connecting block; 310. Mounting block; 311. Gear; 312. Rack; 313. Sliding plate; 314. Limiting block; 315. Spring; 316. Knob; 317. Water tank; 318. No. 2 water pump; 319. Injection pipe. Detailed Implementation

[0034] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] Reference Figure 1 and Figure 2This application provides a printing plate cleaning mechanism, including a mounting frame 1. The mounting frame 1 has a support mechanism 2 on both sides for placing and moving the printing plate. Inside the mounting frame 1 is a cleaning mechanism 3 for cleaning the printing plate. The cleaning mechanism 3 includes a filter box 305, a primary water pump 306, a spray pipe 307, and a nozzle 308. The filter box 305 is slidably connected to the inner wall surface of the mounting frame 1. The primary water pump 306 is fixedly installed on one side of the mounting frame 1. The spray pipe 307 is fixedly installed on the upper surface of the primary water pump 306, and the other end of the spray pipe 307 is fixedly installed on one side of the inner wall of the mounting frame 1. The spray pipe 307 passes through one side of the mounting frame 1 and is fixedly connected to that side. The nozzle 308 is fixedly installed on the surface of the spray pipe 307. The support mechanism 2 can activate a motor 205, which drives a threaded rod 202 to rotate, causing a slider 204 to lower the connecting rod 206 and the placement frame 207, thereby lowering the printing plate. The cleaning mechanism 3 can be activated by starting the first water pump 306, which will draw the cleaning fluid from the bottom of the mounting frame 1 and deliver it to the nozzle 308 through the spray pipe 307. The nozzle 308 will spray the cleaning fluid to pre-rinse the printing plate. After pre-cleaning, the used cleaning fluid will flow back to the bottom of the mounting frame 1 through the drain pipe 303. During this process, the filter box 305 will filter the cleaning fluid to remove solid impurities so that the cleaning fluid can be recycled later. The ultrasonic generator 302 will be activated to use the generated ultrasonic waves to perform deep cleaning of the printing plate. After cleaning is completed, the electronic control valve 304 will be activated to allow the used cleaning fluid to flow into the bottom of the mounting frame 1 for continued use. Then the printing plate can be removed from the placement frame 207. When the filter box 305 needs to be cleaned after a certain number of uses, turn the knob 316 to drive the gear 311 to rotate. The gear 311 meshes with the rack 312, causing the two racks 312 to move in opposite directions. When the racks 312 move, they will drive the sliding plate 313 and the limiting block 314 to move, while squeezing the spring 315. After the limiting block 314 disengages from the inner wall of the connecting block 309, pull the connecting block 309 outward to remove the connecting block 309 and the filter box 305 from the mounting frame 1. Clean the impurities in the filter box 305. After cleaning, reset the filter box 305, release the knob 316, and the spring 315 will rebound, causing the sliding plate 313 and the rack 312 to reset, so that the device can be used normally in the future.

[0037] Reference Figure 1 and Figure 4 In one aspect of this embodiment, mounting boxes 201 are fixedly installed on both sides of the mounting frame 1. There are two mounting boxes 201. Threaded rods 202 are rotatably connected to both ends of the inner wall of the mounting box 201. Slide rods 203 are fixedly installed on both ends of the inner wall of the other mounting box 201. A motor 205 is fixedly installed on the lower surface of the mounting box 201. The output shaft of the motor 205 is fixedly connected to the threaded rods 202.

[0038] Two sliders 204 are slidably connected to the surface of the slide bar 203. Another slider 204 is threadedly connected to the surface of the threaded rod 202. Connecting rods 206 are fixedly installed on both sides of the slider 204. A placement frame 207 is fixedly installed on one side of the connecting rod 206. By starting the motor 205, the motor 205 drives the threaded rod 202 to rotate, causing the slider 204 to drive the connecting rod 206 and the placement frame 207 to descend, thereby driving the printing plate to descend.

[0039] Reference Figure 3 , Figure 5 and Figure 6 In one aspect of this embodiment, a partition 301 is fixedly installed on the inner wall surface of the mounting bracket 1, an ultrasonic generator 302 is fixedly installed on the upper surface of the partition 301, a drain pipe 303 is fixedly installed on the lower surface of the partition 301, and an electric control valve 304 is fixedly installed on the surface of the drain pipe 303.

[0040] A connecting block 309 is fixedly installed on one side of the filter box 305, and an installation block 310 is fixedly installed on one side of the mounting bracket 1. A gear 311 is rotatably connected to one side of the inner wall of the installation block 310, and a rack 312 is slidably connected to one side of the inner wall of the installation block 310. The rack 312 meshes with the gear 311. A knob 316 is rotatably connected to one side of the installation block 310, and the knob 316 is fixedly connected to the gear 311.

[0041] A sliding plate 313 is fixedly installed on one side of the rack 312. The sliding plate 313 passes through one side of the mounting block 310 and is slidably connected to one side of the mounting block 310. A limit block 314 is fixedly installed on one side of the sliding plate 313 and is slidably connected to the inner wall surface of the connecting block 309.

[0042] A spring 315 is fixedly installed on one side of the inner wall of the sliding plate 313. The other end of the spring 315 is fixedly connected to one side of the inner wall of the mounting block 310. A water tank 317 is fixedly installed on one side of the mounting frame 1. A second water pump 318 is fixedly installed on the upper surface of the water tank 317. An injection pipe 319 is fixedly installed on the upper surface of the second water pump 318. The injection pipe 319 passes through one side of the mounting frame 1 and is fixedly connected to one side of the mounting frame 1. By starting the first water pump 306, it will draw the cleaning fluid from the bottom of the mounting frame 1 and deliver it to the spray head 308 through the spray pipe 307. The cleaning solution is sprayed to pre-rinse the printing plate. After pre-cleaning, the used cleaning solution flows back to the bottom of the mounting frame 1 through the drain pipe 303. During this process, the filter box 305 filters the cleaning solution to remove solid impurities so that the cleaning solution can be recycled later. The ultrasonic generator 302 is started to use the generated ultrasonic waves to perform deep cleaning on the printing plate. After cleaning, the electronic control valve 304 is started to allow the used cleaning solution to flow into the bottom of the mounting frame 1 for continued use. Then the printing plate can be removed from the placement frame 207. When the filter box 305 needs to be cleaned after a certain number of uses, turn the knob 316 to drive the gear 311 to rotate. The gear 311 meshes with the rack 312, causing the two racks 312 to move in opposite directions. When the racks 312 move, they will drive the sliding plate 313 and the limiting block 314 to move, while squeezing the spring 315. After the limiting block 314 disengages from the inner wall of the connecting block 309, pull the connecting block 309 outward to remove the connecting block 309 and the filter box 305 from the mounting frame 1. Clean the impurities in the filter box 305. After cleaning, reset the filter box 305, release the knob 316, and the spring 315 will rebound, causing the sliding plate 313 and the rack 312 to reset, so that the device can be used normally in the future.

[0043] All electrical devices in this plan are powered by an external power source.

[0044] Working principle: When using this device, firstly, cleaning solution is injected into water tank 317, and then water pump 318 is started to draw the cleaning solution from water tank 317 and inject it into the mounting frame 1 through injection pipe 319. Then, the electronic control valve 304 is opened, allowing the cleaning solution to flow into the bottom of mounting frame 1 through drain pipe 303. Next, the printing plate to be cleaned is placed in placement frame 207, and water pump 306 is started, which draws the cleaning solution from the bottom of mounting frame 1 and delivers it to nozzle 308 through spray pipe 307. The nozzle 308 sprays the cleaning solution to pre-rinse the printing plate. After pre-cleaning, the used cleaning solution flows back to the bottom of mounting frame 1 through drain pipe 303. During this process, filter box 305 filters the cleaning solution. The cleaning solution is filtered to remove solid impurities so that it can be recycled later. After pre-cleaning, the solenoid valve 304 is closed and the second water pump 318 is restarted to inject cleaning solution into the mounting frame 1. Then, the motor 205 is started, which drives the threaded rod 202 to rotate, causing the slider 204 to drive the connecting rod 206 and the placement frame 207 to descend, thereby driving the printing plate to descend. When the printing plate is completely immersed in the cleaning solution, the ultrasonic generator 302 is started to use the generated ultrasonic waves to perform deep cleaning on the printing plate. After cleaning, the solenoid valve 304 is started to allow the used cleaning solution to flow into the bottom of the mounting frame 1 for continued use. Then the printing plate can be removed from the placement frame 207. When the filter box 305 needs to be cleaned after a certain number of uses, turn the knob 316 to drive the gear 311 to rotate. The gear 311 meshes with the rack 312, causing the two racks 312 to move in opposite directions. When the racks 312 move, they will drive the sliding plate 313 and the limiting block 314 to move, while squeezing the spring 315. After the limiting block 314 disengages from the inner wall of the connecting block 309, pull the connecting block 309 outward to remove the connecting block 309 and the filter box 305 from the mounting frame 1. Clean the impurities in the filter box 305. After cleaning, reset the filter box 305, release the knob 316, and the spring 315 will rebound, causing the sliding plate 313 and the rack 312 to reset, so that the device can be used normally in the future.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing plate cleaning mechanism, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a bearing mechanism (2) on both sides for placing the printing plate and moving the printing plate. The mounting frame (1) is provided with a cleaning mechanism (3) for cleaning the printing plate. The cleaning mechanism (3) includes a filter box (305), a first water pump (306), a spray pipe (307) and a nozzle (308). The filter box (305) is slidably connected to the inner wall surface of the mounting frame (1). The first water pump (306) is fixedly installed on one side of the mounting frame (1). The spray pipe (307) is fixedly installed on the upper surface of the first water pump (306). The other end of the spray pipe (307) is fixedly installed on one side of the inner wall of the mounting frame (1). The spray pipe (307) passes through one side of the mounting frame (1) and is fixedly connected to one side of the mounting frame (1). The nozzle (308) is fixedly installed on the surface of the spray pipe (307).

2. The printing plate cleaning mechanism according to claim 1, characterized in that: The mounting bracket (1) has two mounting boxes (201) fixedly installed on both sides. The mounting boxes (201) are rotatably connected to the two ends of the inner wall of the mounting box (201). The other mounting box (201) has a sliding rod (203) fixedly installed on the two ends of the inner wall. The motor (205) is fixedly installed on the lower surface of the mounting box (201). The output shaft of the motor (205) is fixedly connected to the threaded rod (202).

3. The printing plate cleaning mechanism according to claim 2, characterized in that: The slider (203) is slidably connected to a slider (204), and there are two sliders (204). The other slider (204) is threadedly connected to the surface of the threaded rod (202). Connecting rods (206) are fixedly installed on both sides of the slider (204), and a placement frame (207) is fixedly installed on one side of the connecting rod (206).

4. The printing plate cleaning mechanism according to claim 1, characterized in that: A partition (301) is fixedly installed on the inner wall surface of the mounting bracket (1). An ultrasonic generator (302) is fixedly installed on the upper surface of the partition (301). A drain pipe (303) is fixedly installed on the lower surface of the partition (301). An electric control valve (304) is fixedly installed on the surface of the drain pipe (303).

5. A printing plate cleaning mechanism according to claim 1, characterized in that: A connecting block (309) is fixedly installed on one side of the filter box (305), and an installation block (310) is fixedly installed on one side of the mounting bracket (1). A gear (311) is rotatably connected to one side of the inner wall of the installation block (310), and a rack (312) is slidably connected to one side of the inner wall of the installation block (310). The rack (312) meshes with the gear (311), and a knob (316) is rotatably connected to one side of the installation block (310). The knob (316) is fixedly connected to the gear (311).

6. A printing plate cleaning mechanism according to claim 5, characterized in that: A sliding plate (313) is fixedly installed on one side of the rack (312). The sliding plate (313) passes through one side of the mounting block (310) and is slidably connected to one side of the mounting block (310). A limiting block (314) is fixedly installed on one side of the sliding plate (313). The limiting block (314) is slidably connected to the inner wall surface of the connecting block (309).

7. A printing plate cleaning mechanism according to claim 6, characterized in that: A spring (315) is fixedly installed on one side of the inner wall of the sliding plate (313), and the other end of the spring (315) is fixedly connected to one side of the inner wall of the mounting block (310). A water tank (317) is fixedly installed on one side of the mounting frame (1), and a second water pump (318) is fixedly installed on the upper surface of the water tank (317). An injection pipe (319) is fixedly installed on the upper surface of the second water pump (318), and the injection pipe (319) passes through one side of the mounting frame (1) and is fixedly connected to one side of the mounting frame (1).

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