A user-friendly circulating flushing device for direct-to-plate machines

Abstract

This utility model discloses a convenient circulating water flushing device for a direct-to-plate machine, including a water collection tank and a filter cylinder located on one side of the water collection tank. A water supply pipe is located at the top of the water collection tank, and multiple nozzles are evenly fixed at the bottom of the water supply pipe. An installation frame is located inside the filter cylinder, and two semi-circular filter screens are symmetrically fixed inside the installation frame. Sealing components are located on the upper and lower sides of the installation frame, near the center. The installation frame rotates between the sealing components, forming two chambers inside the filter cylinder. The chamber near the water collection tank is the filtration chamber, and the other chamber is the cleaning chamber. Through this structure, the filter screens inside the filtration chamber and the cleaning chamber can be interchanged, achieving rapid switching between filtration and cleaning. This facilitates continuous filtration and avoids the inconvenience of repeatedly disassembling and reassembling the filter screens for cleaning, making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a circulating flushing device for a direct plate making machine that is easy to operate. Background Technology

[0002] The rinsing process in the plate-making machine is mainly used for cleaning and developing, ensuring that the printing plate is clean and forms a high-quality image area. The reaction between the developer and water removes the latent image on the PS plate, forming a printable image area.

[0003] In the prior art, a search revealed a Chinese patent disclosing "A Conveniently Operated Plate-Making Machine Circulating Water Flushing Device," application number "202020721879.X." This patent mainly includes a housing with an inlet on one side and an outlet on the other. Several drive rollers with rotating devices are rotatably installed inside the housing. A partition is fixedly installed on the inner wall of the housing. Two purification pipes are fixedly connected to one side of the housing, both communicating with the interior of the housing. The upper purification pipe is located above the partition, and the lower purification pipe is located below the partition. A filter device is fixedly installed on one side of the housing, connected to the two purification pipes via quick connectors. The filter device is located outside the housing for easy cleaning. Although the device maintains a constant water flow rate per unit time regardless of user adjustments to the regulating valve, ensuring stable pump operation and low pump wear, the user can easily adjust the water flow rate per unit time of the spray nozzles by adjusting the regulating valve. However, after setting up the filter plates to filter wastewater, the user needs to disconnect the quick connectors on the two purification pipes and then open the cleaning door to clean the filter plates. This operation requires repeated disassembly and reassembly of connectors, opening and closing of the box door, and disassembly and reassembly of filter plates for cleaning, which is cumbersome and not conducive to the continuous operation of filtration, resulting in poor practicality. Therefore, this utility model provides a convenient circulating flushing device for direct plate making machines to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a convenient circulating flushing device for direct plate making machines. The filter screen plates inside the filtration chamber and the cleaning chamber can be interchanged to achieve rapid switching between filtration and cleaning, which facilitates continuous filtration and avoids the troublesome problem of repeatedly disassembling and assembling the filter screen plates for cleaning. It is easy to use.

[0005] To achieve the above objectives, a convenient circulating flushing device for a direct plate making machine is provided, including a water collection tank and a filter cylinder located on one side of the water collection tank. A water supply pipe is provided at the top of the water collection tank, and multiple nozzles are uniformly fixed at the bottom of the water supply pipe. An installation frame is provided inside the filter cylinder, and two semi-circular filter screens are symmetrically fixed inside the installation frame.

[0006] The mounting frame is provided with sealing components on both the upper and lower sides and on one side near the middle. The mounting frame rotates between the sealing components. The filter cylinder is formed into two chambers through the sealing components. The chamber near the water collection tank is the filtration chamber, and the other chamber is the cleaning chamber.

[0007] According to the aforementioned easy-to-operate circulating flushing device for a direct plate making machine, the sealing assembly includes a fixing plate and a sealing gasket fixed to the top of the fixing plate. The two fixing plates are respectively fixed to the bottom wall of the filter cylinder and the top of the mounting frame, and the two sealing gaskets are respectively in contact with the bottom of the mounting frame and the top wall of the filter cylinder.

[0008] According to the aforementioned convenient direct plate making machine circulating flushing device, a sealing ring is fixed on the outer ring of the mounting frame, and the sealing ring has multiple protrusions.

[0009] According to the aforementioned easy-to-operate circulating flushing device for a direct plate making machine, the filter chamber is equipped with an inlet pipe and an outlet pipe. The outlet pipe is connected to a water supply pipe via a connecting pipe, and the inlet pipe is connected to a water collection tank via a water pump.

[0010] According to the aforementioned easy-to-operate circulating flushing device for a direct plate making machine, an inlet pipe and a drain pipe are fixedly installed inside the cleaning chamber, and the drain pipe is connected to a connecting pipe through a water supply branch pipe.

[0011] According to the aforementioned easy-to-operate circulating flushing device for a direct plate-making machine, a rotating shaft is rotatably connected inside the filter cylinder, a motor is fixedly mounted on the top of the filter cylinder, the top end of the rotating shaft is fixedly connected to the output shaft of the motor, and the bottom end of the rotating shaft is fixedly connected to the mounting frame.

[0012] According to the aforementioned easy-to-operate circulating flushing device for a direct plate making machine, a third valve is provided on the side of the water supply branch pipe near the connecting pipe, a water replenishment pipe is fixedly provided on the top of the water collection tank, a second valve is provided on the water replenishment pipe, a control valve is provided on each of the nozzles, and a first valve is provided on the drain pipe.

[0013] This utility model has the following beneficial effects:

[0014] Compared to existing technologies, wastewater is transported into the filter cartridge and filtered through the filter screen inside the filter chamber. Simultaneously, the filter screen inside the cleaning chamber is cleaned. The filter screens in the filter chamber and the cleaning chamber can be interchanged, enabling rapid switching between filtration and cleaning. This facilitates continuous filtration and avoids the inconvenience of repeatedly disassembling and reassembling the filter screens for cleaning, making it convenient to use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of a circulating flushing device for a direct-to-plate machine that is easy to operate, according to this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the nozzle and filter cylinder structure of a circulating water flushing device for a direct plate making machine that is easy to operate according to this utility model;

[0018] Figure 3 This is a schematic diagram of the fixed plate, sealing gasket, and sealing ring of a circulating water flushing device for a direct plate making machine that is easy to operate according to this utility model;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the circulating flushing filter cartridge for a direct plate making machine that is easy to operate, according to this utility model.

[0020] Legend:

[0021] 1. Water collection tank; 2. Filter cylinder; 3. Fixing plate; 4. Water supply pipe; 5. Rotating shaft; 6. Motor; 7. Sewage inlet pipe; 8. Liquid outlet pipe; 9. Drain pipe; 10. Water inlet pipe; 11. Filter screen; 12. Water supply branch pipe; 13. Connecting pipe; 14. First valve; 15. Water pump; 16. Water supply pipe; 17. Second valve; 18. Sealing ring; 19. Nozzle; 20. Third valve; 21. Mounting frame; 22. Sealing gasket. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model provides a convenient circulating flushing device for a direct plate making machine, which includes a water collection tank 1 and a filter cylinder 2 located on one side of the water collection tank 1. The top of the water collection tank 1 is provided with a water supply pipe 4, and multiple nozzles 19 are uniformly fixed at the bottom of the water supply pipe 4. The filter cylinder 2 is provided with a mounting frame 21 inside, and two semi-circular filter screens 11 are symmetrically fixed inside the mounting frame 21. Sealing components are provided on the upper and lower sides of the mounting frame 21 and on the side near the middle. The mounting frame 21 rotates between the sealing components. The filter cylinder 2 is formed into two chambers through the sealing components, wherein the chamber near the water collection tank 1 is the filtration chamber and the other chamber is the cleaning chamber.

[0024] When the printing plate is conveyed and moved on the top roller of the water collection tank 1, the nozzle 19 rinses the printing plate, and the rinsed wastewater falls into the water collection tank 1. The wastewater is then transported to the filter cylinder 2 and filtered through the filter screen 11 inside the filter chamber. At the same time, the filter screen 11 inside the cleaning chamber is cleaned. When the filter screen 11 is saturated, the mounting frame 21 rotates, and the filter screen 11 inside the filter chamber and the filter screen 11 inside the cleaning chamber are interchanged, realizing a quick switch between filtration and cleaning. This facilitates continuous filtration and avoids the troublesome problem of repeatedly disassembling and assembling the filter screen 11 for cleaning, making it convenient to use.

[0025] The filter cartridge 2 is rotatably connected to a rotating shaft 5. A motor 6 is fixedly mounted on the top of the filter cartridge 2. The top end of the rotating shaft 5 is fixedly connected to the output shaft of the motor 6, and the bottom end of the rotating shaft 5 is fixedly connected to the mounting frame 21.

[0026] The motor 6 drives the rotating shaft 5 to rotate, causing the mounting frame 21 and the filter screen 11 to rotate 180°, switching the filter screen 11 inside the filter chamber to the cleaning chamber, and simultaneously switching the filter screen 11 inside the cleaning chamber to the filter chamber.

[0027] The sealing assembly includes a fixing plate 3 and a sealing gasket 22 fixed on the top of the fixing plate 3. The two fixing plates 3 are respectively fixed on the bottom wall of the filter cylinder 2 and the top of the mounting frame 21. The two sealing gaskets 22 are respectively in contact with the bottom of the mounting frame 21 and the top wall of the filter cylinder 2. A sealing ring 18 is fixed on the outer ring of the mounting frame 21, and the sealing ring 18 has multiple protrusions.

[0028] The left and right chambers of the mounting frame 21 are sealed by the cooperation of the fixing plate 3 and the sealing gasket 22. The sealing gasket 22 maintains a sliding connection with the mounting frame 21, ensuring that the mounting frame 21 and its internal filter screen 11 can be freely replaced while preventing water leakage inside the two chambers. The sealing ring 18 on the mounting frame 21 is used to seal the connection between the mounting frame 21 and the filter cylinder 2, so that each chamber is an independent closed space.

[0029] The filter chamber is equipped with a sludge inlet pipe 7 and a liquid outlet pipe 8. The liquid outlet pipe 8 is connected to the water supply pipe 4 via a connecting pipe 13. The sludge inlet pipe 7 is connected to the water collection tank 1 via a water pump 15. The cleaning chamber is equipped with a water inlet pipe 10 and a drain pipe 9. The drain pipe 9 is connected to the connecting pipe 13 via a water supply branch pipe 12.

[0030] During filtration, the water pump 15 draws water from the water collection tank 1 and transports it to the filter cylinder 2 through the sewage inlet pipe 7. After being filtered by the filter screen 11, the water is discharged from the liquid outlet pipe 8 and returned to the water supply pipe 4 for recycling.

[0031] During cleaning, the cleaning water flows through the water supply branch pipe 12 and is delivered to the cleaning chamber through the water inlet pipe 10. After cleaning the filter screen 11, the wastewater is discharged from the drain pipe 9.

[0032] A third valve 20 is provided on the side of the water supply branch pipe 12 near the connecting pipe 13 to control the opening and closing of the water supply branch pipe 12. A water supply pipe 16 is fixedly installed on the top of the water collection tank 1, and a second valve 17 is provided on the water supply pipe 16 to connect the water supply pipe 16 to an external delivery pump. By controlling the second valve 17, it is convenient to replenish water into the water collection tank 1. Each nozzle 19 is equipped with a control valve, and a first valve 14 is provided on the drain pipe 9 to facilitate the discharge of wastewater from the cleaning chamber.

[0033] Working principle: When the plate is conveyed and moved on the top roller of the water collection tank 1, the nozzle 19 washes the plate, and the washed wastewater falls into the water collection tank 1. The wastewater is then transported to the filter cylinder 2 and filtered through the filter screen 11 inside the filter chamber. At the same time, the filter screen 11 inside the cleaning chamber is cleaned.

[0034] Once the filter screen 11 is saturated, the motor 6 drives the rotating shaft 5 to rotate, causing the mounting frame 21 and the filter screen 11 to rotate 180°. This switches the filter screen 11 inside the filtration chamber to the cleaning chamber, and simultaneously switches the filter screen 11 inside the cleaning chamber to the filtration chamber. The interchangeability of the filter screen 11 inside the filtration chamber and the filter screen 11 inside the cleaning chamber allows for rapid switching between filtration and cleaning, facilitating continuous filtration and avoiding the hassle of repeatedly disassembling and reassembling the filter screen 11 for cleaning. This makes the process convenient to use.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A convenient-to-use circulating flushing device for a direct-to-plate machine, comprising a water collection tank (1) and a filter cylinder (2) disposed on one side of the water collection tank (1), characterized in that, The top of the water collection tank (1) is provided with a water supply pipe (4), and multiple nozzles (19) are uniformly fixed at the bottom of the water supply pipe (4). The filter cylinder (2) is provided with an installation frame (21), and two semi-circular filter screens (11) are symmetrically fixed inside the installation frame (21). The mounting frame (21) is provided with sealing components on both the upper and lower sides and on the side near the middle. The mounting frame (21) rotates between the sealing components. The filter cylinder (2) has two chambers formed inside through the sealing components. The chamber near the water collection tank (1) is the filtration chamber, and the other chamber is the cleaning chamber.

2. The circulating flushing device for a direct-to-plate machine with convenient operation according to claim 1, characterized in that, The sealing assembly includes a fixing plate (3) and a sealing gasket (22) fixed on the top of the fixing plate (3). The two fixing plates (3) are respectively fixed on the bottom wall of the filter cylinder (2) and the top of the mounting frame (21). The two sealing gaskets (22) are respectively in contact with the bottom of the mounting frame (21) and the top wall of the filter cylinder (2).

3. The circulating flushing device for a direct-to-plate machine with convenient operation according to claim 2, characterized in that, A sealing ring (18) is fixed on the outer ring of the mounting frame (21), and the sealing ring (18) has multiple protrusions.

4. The circulating flushing device for a direct-to-plate machine that is easy to operate according to claim 1, characterized in that, The filter chamber is equipped with an inlet pipe (7) and an outlet pipe (8). The outlet pipe (8) is connected to the water supply pipe (4) through a connecting pipe (13). The inlet pipe (7) is connected to the water collection tank (1) through a water pump (15).

5. A convenient-to-use circulating flushing device for a direct-to-plate machine according to claim 1, characterized in that, The cleaning chamber is equipped with an inlet pipe (10) and a drain pipe (9), and the drain pipe (9) is connected to the connecting pipe (13) through a water supply branch pipe (12).

6. A convenient-to-use circulating flushing device for a direct-to-plate machine according to claim 5, characterized in that, The filter cylinder (2) is rotatably connected to a rotating shaft (5), and a motor (6) is fixedly mounted on the top of the filter cylinder (2). The top end of the rotating shaft (5) is fixedly connected to the output shaft of the motor (6), and the bottom end of the rotating shaft (5) is fixedly connected to the mounting frame (21).

7. A convenient-to-use circulating flushing device for a direct-to-plate machine according to claim 6, characterized in that, The water supply branch pipe (12) is provided with a third valve (20) on the side near the connecting pipe (13), the water collection tank (1) is fixed with a water supply pipe (16), the water supply pipe (16) is provided with a second valve (17), the nozzle (19) is provided with a control valve, and the drain pipe (9) is provided with a first valve (14).

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