Water-saving cleaning device for digital cold dyeing printing

Abstract

The utility model relates to a kind of water-saving cleaning device for digital cold dyeing printing, including outer shell, water washing groove is opened in outer shell, several conveying rollers are erected in water washing groove top end, several driven rollers are erected below conveying roller, the filter device is placed in the side of outer shell, and the filter device includes filter shell, grid layer, ultra-fine grid layer and activated carbon filter screen layer are continuously arranged in filter shell, grid layer, ultra-fine grid layer and activated carbon filter screen layer divide into sewage bin, neutralization bin, sedimentation bin and backwater bin in filter shell, water inlet pipe is arranged between outer shell and backwater bin, water outlet pipe is arranged between outer shell and sewage bin, water pump is arranged on water inlet pipe.The utility model structure is reasonable, by the cooperation of water pump, water outlet pipe, drain pipe, make cleaning water keep circulating flow, effectively improve cleaning efficiency, while, make cleaning device in keeping cleaning to cleaning water carry out decontamination treatment, without stopping, effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a water-saving cleaning device for digital cold dyeing printing. Background Technology

[0002] Cold-dye digital printing is an environmentally friendly printing and dyeing technology that integrates low-temperature transfer technology and digital inkjet technology. It uses high-precision cold transfer equipment to transfer the ink onto the fabric, achieving a low-energy, high-definition printing effect. It has advantages such as energy saving and emission reduction, strong color fastness, and high production flexibility. After printing, the fabric usually needs to be washed. Existing washing equipment, such as the water-saving water inlet mechanism of the digital printing equipment with patent authorization announcement number CN218203447U, although it can achieve water saving, requires stopping the washing process and discharging the wastewater into the filter chamber for treatment before it re-enters the washing tank, which is inefficient. During washing, the water in the washing tank is not flowing, resulting in low cleaning efficiency. The washing components are installed at the bottom of the washing tank, making it inconvenient to replace the filter layer. Utility Model Content

[0003] To overcome the shortcomings of the existing devices mentioned above, this utility model provides a water-saving cleaning device for digital cold dyeing and printing.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a water-saving cleaning device for digital cold dyeing and printing, including an outer shell, a washing tank is opened in the outer shell, a number of conveying rollers are mounted at the top of the washing tank, a number of driven rollers are mounted below the conveying rollers, a filter device is placed on one side of the outer shell, the filter device includes a filter housing, a grid layer, an ultrafine grid layer and an activated carbon filter layer are continuously arranged in the filter housing, the grid layer, ultrafine grid layer and activated carbon filter layer divide the filter housing into a sewage tank, a neutralization tank, a sedimentation tank and a return water tank, an inlet pipe is arranged between the outer shell and the return water tank, an outlet pipe is arranged between the outer shell and the sewage tank, a water pump is arranged on the inlet pipe, and the outer shell and the filter device form a circulation through the outlet pipe and the inlet pipe.

[0005] Preferably, the filter housing is provided with a cover plate on top, and side openings are provided above the grid layer, the ultrafine grid layer, and the activated carbon filter layer, as well as at the cover plate. The grid layer, the ultrafine grid layer, and the activated carbon filter layer are all detachable components. A rubber sealing layer is provided around the grid layer, the ultrafine grid layer, and the activated carbon filter layer. A first groove is provided at the position where the filter housing fits with the rubber sealing layer. The width of the first groove is smaller than the width of the rubber sealing layer. During installation, the side opening is opened, and the rubber sealing layer is pressed and locked into the first groove. After the bottom of the rubber sealing layer is locked into the first groove, the side opening is closed to complete the installation. This effectively prevents sewage from entering the next compartment from the surrounding gaps and improves the filtration rate.

[0006] Preferably, the connection points of the water outlet pipe and the water inlet pipe to the outer casing are located on both sides of the outer casing, thereby increasing the length of the flow path of the cleaning water.

[0007] Preferably, the neutralization chamber is equipped with a pH monitoring device and an inlet on the side away from the outer shell. When the pH value is too high, sulfuric acid or citric acid is added into the neutralization chamber through the inlet. When the pH value is too low, sodium hydroxide or lime is added into the neutralization chamber. The top of the inlet is flush with the top of the filter shell to prevent the water level in the filter shell from being too high, which would cause water to overflow from the inlet.

[0008] Preferably, the sedimentation chamber contains polyacrylamide flocculant to effectively improve the sedimentation rate.

[0009] Preferably, one of the conveyor rollers is driven by a motor, while the other conveyor rollers are driven by belts.

[0010] Preferably, the water pump is connected to a water supply pipe on the side opposite to the water inlet pipe, and the sewage tank is connected to a drain pipe on the side opposite to the water outlet pipe. Control valves are installed in the water supply pipe, the water outlet pipe, and the drain pipe. When the cleaning water cannot meet the cleaning requirements after passing through the filtration device, the water outlet pipe discharges sewage, and the water supply pipe replenishes clean water into the outer shell.

[0011] Preferably, the height of the filter housing is lower than the water level in the washing tank to ensure that wastewater continuously flows into the filter device.

[0012] The beneficial effects of this utility model are that by using the water pump, water outlet pipe and water outlet pipe in combination, the cleaning water is kept circulating, which effectively improves the cleaning efficiency. At the same time, the cleaning device can remove dirt from the cleaning water while maintaining the cleaning process, without having to stop the machine, thus effectively improving work efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the outer shell and internal structure of this utility model;

[0017] Figure 4 This is a top view of the filtration device of this utility model;

[0018] In the diagram, 1. Outer shell; 2. Washing tank; 3. Conveying roller; 4. Driven roller; 5. Filter device; 6. Outlet pipe; 7. Inlet pipe; 8. Water pump; 9. Filter housing; 10. Grille layer; 11. Ultrafine grille layer; 12. Activated carbon filter layer; 13. Wastewater tank; 14. Neutralization tank; 15. Sedimentation tank; 16. Return water tank; 17. pH value testing equipment; 18. Inlet; 19. Cover plate; 20. Side opening; 21. First groove; 22. Drain pipe; 23. Water supply pipe; 24. Motor; 25. Belt. Detailed Implementation

[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0021] like Figure 1-4 The water-saving cleaning device for digital cold dyeing and printing shown includes an outer shell 1, a washing tank 2 inside the outer shell 1, several conveying rollers 3 mounted at the top of the washing tank 2, and several driven rollers 4 mounted below the conveying rollers 3. A filter device 5 is placed on one side of the outer shell 1. The filter device 5 includes a filter housing 9, and a grid layer 10, an ultrafine grid layer 11, and an activated carbon filter layer 12 are continuously arranged inside the filter housing 9. The grid layer 10, ultrafine grid layer 11, and activated carbon filter layer 12 divide the filter housing 9 into a wastewater tank 13, a neutralization tank 14, a sedimentation tank 15, and a return water tank 16. A water inlet pipe 7 is provided between the outer shell 1 and the return water tank 16, and a water outlet pipe 6 is provided between the outer shell 1 and the wastewater tank 13. A water pump 8 is provided on the water inlet pipe 7. The outer shell 1 and the filter device 5 form a circulation through the water outlet pipe 6 and the water inlet pipe 7.

[0022] The filter housing 9 is topped with a cover plate 19. Side openings 20 are provided above the grid layer 10, the ultrafine grid layer 11, and the activated carbon filter layer 12, and at the cover plate 19. The grid layer 10, the ultrafine grid layer 11, and the activated carbon filter layer 12 are all detachable components. A rubber sealing layer is provided around the grid layer 10, the ultrafine grid layer 11, and the activated carbon filter layer 12. A first groove 21 is provided at the position where the filter housing 9 fits with the rubber sealing layer. The width of the first groove 21 is smaller than the width of the rubber sealing layer. During installation, the side opening 20 is opened, and the rubber sealing layer is pressed and engaged with the first groove 21. After the bottom of the rubber sealing layer is engaged with the first groove 21, the side opening 20 is closed to complete the installation. This effectively prevents sewage from entering the next chamber from the surrounding gaps and improves the filtration rate.

[0023] The water outlet pipe 6 and water inlet pipe 7 are connected to the outer casing 1 at their respective ends, which increases the length of the flow path of the cleaning water.

[0024] The neutralization chamber 14 is equipped with a pH monitoring device 17 and an inlet 18 on the side away from the outer shell 1. When the pH value is too high, sulfuric acid or citric acid is added into the neutralization chamber 14 through the inlet 18. When the pH value is too low, sodium hydroxide or lime is added into the neutralization chamber 14. The top of the inlet 18 is flush with the top of the filter shell 9 to prevent the water level in the filter shell 9 from being too high, which would cause water to overflow from the inlet 18.

[0025] The sedimentation chamber 15 contains polyacrylamide flocculant, which effectively improves the sedimentation rate.

[0026] One of the conveying rollers 3 is driven by a motor 24, and the other conveying rollers 3 are driven by a belt 25.

[0027] The water pump 8 is connected to a water supply pipe 23 on the side opposite to the water inlet pipe 7, and the sewage tank 13 is connected to a drain pipe 22 on the side opposite to the water outlet pipe 6. Control valves are installed in the water supply pipe 23, the water outlet pipe 6 and the drain pipe 22. When the cleaning water cannot meet the cleaning requirements after passing through the filter device 5, the water outlet pipe 6 discharges sewage and the water supply pipe 23 replenishes clean water into the outer casing 1.

[0028] The height of the filter housing 9 is lower than the water level in the washing tank 2, ensuring that sewage continuously flows into the filter device 5.

[0029] Working principle: After cold dyeing, the fabric enters the washing tank 2 through the conveyor roller 3. After the fabric is cleaned by the cleaning water, it enters the sewage tank 13 through the outlet pipe 6. It undergoes preliminary filtration through the grid layer 10 and enters the neutralization tank 14. The pH monitoring device 17 monitors the pH value of the sewage. When the pH value is too high, sulfuric acid or citric acid is added to the neutralization tank 14 through the inlet 18. When the pH value is too low, sodium hydroxide or lime is added to the neutralization tank 14. Subsequently, the sewage is finely filtered through the ultra-fine grid layer 11 and enters the sedimentation tank 15. After sedimentation by polyacrylamide flocculant, the sewage is cleaned through the activated carbon filter layer 12 and enters the return water tank 16. It then re-enters the washing tank 2 through the inlet pipe 7.

[0030] This ingenious design utilizes a combination of water pumps, outlet pipes, and drain pipes to maintain continuous circulation of the cleaning water, effectively improving cleaning efficiency. Simultaneously, the cleaning device decontaminates the cleaning water while maintaining the cleaning process, eliminating the need for downtime and significantly increasing work efficiency. Furthermore, if treated wastewater fails to meet cleaning standards, it is discharged through the drain pipe, and clean water is replenished through the water supply pipe. Side openings, the first groove, and the second groove facilitate easy replacement of the cleaning grid layer, ultrafine grid layer, and activated carbon filter layer. A rubber sealing layer reduces wastewater entering the next compartment through gaps, effectively improving the filtration rate.

[0031] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A water-saving cleaning device for digital cold dyeing and printing, characterized in that: The device includes an outer shell (1), a washing tank (2) is provided inside the outer shell (1), several conveying rollers (3) are mounted at the top of the washing tank (2), several driven rollers (4) are mounted below the conveying rollers (3), a filter device (5) is placed on one side of the outer shell (1), the filter device (5) includes a filter housing (9), a grid layer (10), an ultra-fine grid layer (11) and an activated carbon filter layer (12) are continuously arranged inside the filter housing (9), the grid layer (10), the ultra-fine grid layer (11) and the activated carbon filter layer (12) divide the filter housing (9) into a sewage tank (13), a neutralization tank (14), a sedimentation tank (15) and a return water tank (16), an inlet pipe (7) is provided between the outer shell (1) and the return water tank (16), an outlet pipe (6) is provided between the outer shell (1) and the sewage tank (13), and a water pump (8) is provided on the inlet pipe (7).

2. The water-saving cleaning device for digital cold dyeing and printing according to claim 1, characterized in that: The filter housing (9) is provided with a cover plate (19) on the top. Side openings (20) are provided above the grid layer (10), the ultra-fine grid layer (11) and the activated carbon filter layer (12) and at the cover plate (19). The grid layer (10), the ultra-fine grid layer (11) and the activated carbon filter layer (12) are all detachable components. A rubber sealing layer is provided outside the grid layer (10), the ultra-fine grid layer (11) and the activated carbon filter layer (12). A first groove (21) is provided at the position where the filter housing (9) fits with the rubber sealing layer.

3. The water-saving cleaning device for digital cold dyeing and printing according to claim 1, characterized in that: The connection points of the water outlet pipe (6), the water inlet pipe (7) and the outer shell (1) are located on both sides of the outer shell (1).

4. The water-saving cleaning device for digital cold dyeing and printing according to claim 1, characterized in that: One of the conveying rollers (3) is driven by a motor (24), and the other conveying rollers (3) are driven by a belt (25).

5. The water-saving cleaning device for digital cold dyeing and printing according to claim 1, characterized in that: The water pump (8) is connected to a water supply pipe (23) on the side opposite to the water inlet pipe (7), and the sewage tank (13) is connected to a drain pipe (22) on the side opposite to the water outlet pipe (6).

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