A washing machine for liquid bags

Abstract

The application discloses a kind of cleaning machines for liquid bag, including transport mechanism, spray mechanism and water storage tank.Transmission belt and water receiving tank are provided to transport mechanism, and spray mechanism includes upper and lower spray assembly, water pump and corresponding switch valve.Water storage tank is located below water receiving tank, is connected by pipeline with first filter screen of inclined detachable, and second filter screen is arranged in the tank.The bottom of the tank has water outlet and drain outlet: water outlet is connected with water pump below first filter screen, and drain outlet is connected with outside above first filter screen.When working, upper and lower spray assembly bidirectionally washes liquid bag; first filter screen is washed by water flow from water receiving tank, and impurities are guided to accumulate side; second filter screen is washed by water flow from pipeline and inlet, and impurities are guided to drain outlet and discharged.The utility model realizes efficient separation and automatic discharge of impurities by double inclined filter screen design, cooperates with circulating water system, significantly improves water resource utilization rate while ensuring cleaning effect, and effectively prevents secondary pollution.

Description

Technical Field

[0001] This application relates to the field of fruit and agricultural product production equipment technology, and more specifically, to a washing machine for liquid bags. Background Technology

[0002] In the production of agricultural products using liquid bags, they are widely used for efficient dispensing and storage of fruit juice due to their low cost and ease of transportation. However, because fruit juice often contains incompletely filtered small fruit particles or pulp residue, the surface of liquid bags is easily contaminated by these pollutants, leading to surface stains and affecting the cleanliness and hygiene of the product. This can even cause microbial growth, necessitating surface disinfection and cleaning. Therefore, there is an urgent need to develop a new type of cleaning equipment to solve these problems. Utility Model Content

[0003] This application provides a washing machine for liquid bags, including a transport mechanism, a spraying mechanism, and a water storage tank. The transport mechanism includes a conveyor belt and a water storage tank located below the conveyor belt for collecting water. The spraying mechanism includes an upper spray assembly and a lower spray assembly located on the upper and lower surfaces of the conveyor belt, a water pump for supplying water, and an upper switch valve and a lower switch valve for correspondingly controlling the switching of the upper and lower spray assemblies. The water storage tank is located below the water storage tank and is connected to it via a transition pipe. A detachable and inclined first filter screen is installed inside the transition pipe, and an inclined second filter screen is installed inside the water storage tank below the transition pipe. The bottom of the water storage tank has an outlet and a drain. The outlet is connected to the water pump via a water pipe and is located on one side of the lower surface of the first filter screen. The drain is connected to the outside and is located on one side of the upper surface of the first filter screen. An inlet is provided at the upper end of the side plate of the water storage tank. The first filter screen is washed by water from the water storage tank and impurities are accumulated on its lower side using its inclined surface. The second filter screen is washed by water from the transition pipe and the inlet and impurities are guided to the drain using its inclined surface.

[0004] In some embodiments, the spraying mechanism includes a first cleaning zone, a second cleaning zone, and a third cleaning zone, each zone being provided with an upper spraying assembly, a lower spraying assembly, a water pump, an upper switch valve, and a lower switch valve.

[0005] In some embodiments, the upper spray pipe in the second cleaning zone includes multiple spray pipes, with adjacent spray pipes using different nozzles to achieve different levels of water jet.

[0006] In some embodiments, both the upper and lower switching valves are electronic valves, and the electronic valves control the upper... In some embodiments, the water storage tank includes a first sub-tank, a second sub-tank, and a third sub-tank corresponding to supply water to the first cleaning zone, the second cleaning zone, and the third cleaning zone.

[0007] In some embodiments, the drain outlets of the first sub-tank, the second sub-tank, and the third sub-tank are connected by the same drain pipe.

[0008] In some embodiments, the first filter screen is tilted at an angle of 45 to 60 degrees, and the second filter screen is tilted at an angle of 45 to 60 degrees.

[0009] In some embodiments, the upper edge of the first filter screen is provided with an upward-facing baffle, and the baffle and the upper surface of the first filter screen form a temporary storage area for holding impurities.

[0010] In some embodiments, the transition duct has a mounting groove for mounting the first filter screen, such that the inner surface of the transition duct is flush with the inner surface of the enclosure.

[0011] This liquid bag cleaning machine utilizes an upper and lower spray assembly design to achieve all-around cleaning of liquid bags. Combined with a detachable tilting filter and a dual filtration system, it effectively separates impurities and prevents secondary contamination. The linked structure of the water receiving tank and storage tank, along with the tilting filter automatically guides impurities, significantly improving filtration efficiency and water resource recycling rate. The overall structural design is reasonable, reducing water consumption while ensuring cleaning effectiveness. It solves problems such as uneven cleaning, excessive water waste, and incomplete filtration found in traditional equipment, making it particularly suitable for high-standard agricultural product processing scenarios.

[0012] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 A half-section diagram of the width center plane of the overall structure; Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the centerline BB; Figure 4 This is an exploded schematic diagram of the transition pipe and the first filter screen in an embodiment of this application.

[0014] Explanation of main component symbols: cleaning machine (100), transport mechanism (10), conveyor belt (11), water tank (12), spray mechanism (20), upper spray assembly (21), upper switch valve (211), lower spray assembly (22), switch valve (221), water pump (23), spray pipe (24), first cleaning zone (25), second cleaning zone (26), third cleaning zone (27), water storage tank (30), second filter screen (31), water outlet (32), extension pipe (321), drain outlet (33), water inlet (34), first sub-water tank (35), second sub-water tank (36), third sub-water tank (37), transition pipe (40), first filter screen (41), enclosure (42), temporary storage area (43), observation window (44), groove (45). Detailed Implementation

[0015] The embodiments of this application will be further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout.

[0016] Furthermore, the embodiments of this application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0017] In this application, unless otherwise expressly specified and limited, the first feature "above" or "below" the second feature may be in direct contact or indirect contact through an intermediate medium. Furthermore, the first feature "above," "on top of," or "over" the second feature may be directly above or diagonally above, or may simply indicate that the first feature is at a higher horizontal level than the second feature; the first feature "below," "below," or "beneath" the second feature may be directly below or diagonally below, or may simply indicate that the first feature is at a lower horizontal level than the second feature.

[0018] Please see Figure 1 , Figure 2 and Figure 3This application provides a cleaning machine (100) for liquid bags, which includes a transport mechanism (10), a spraying mechanism (20), and a water tank (30). The transport mechanism (10) includes a conveyor belt (11) and a water tank (12) located below the conveyor belt (11) for collecting water. The spraying mechanism (20) includes an upper spraying assembly (21) and a lower spraying assembly (22) located on the upper and lower surfaces of the conveyor belt (11), a water pump (23) for supplying water, and an upper switch valve (211) and a lower switch valve (221) for correspondingly controlling the switching of the upper spraying assembly (21) and the lower spraying assembly (22). The water storage tank (30) is located below the water receiving tank (12) and connected through a transition pipe (40). A detachable and inclined first filter screen (41) is installed inside the transition pipe (40), and an inclined second filter screen (31) is installed inside the water storage tank (30) below the transition pipe (40). The bottom of the water storage tank (30) is provided with an outlet (32) and a drain (33). The outlet (32) is connected to the water pump (23) through a water pipe and is located on one side of the lower surface of the first filter screen (41). The drain (33) is connected to the outside and is located on one side of the upper surface of the first filter screen (41). The upper end of the side plate of the water storage tank (30) is provided with an inlet (34). The first filter screen (41) is flushed by water from the water tank (12) and impurities are deposited on the lower side by the inclined surface. The second filter screen (31) is flushed by water from the transition pipe (40) and the inlet (34) and impurities are directed to the drain outlet (33) by the inclined surface.

[0019] The liquid bag cleaning machine (100) of this application achieves all-round cleaning of liquid bags through the design of upper and lower spray components (22), and effectively separates impurities and prevents secondary pollution by means of a detachable inclined filter screen and a dual filtration system. The linkage structure of the water receiving tank (12) and the water storage tank (30) combined with the inclined filter screen automatically guides impurities, significantly improving filtration efficiency and water resource recycling rate. The overall structure design is reasonable, which reduces water consumption while ensuring cleaning effect, and solves the problems of uneven cleaning, large water waste and incomplete filtration of traditional equipment. It is especially suitable for high-standard agricultural product processing scenarios.

[0020] Specifically, please refer to Figure 1 and Figure 2 The transport mechanism (10) is mounted on the frame. The transport mechanism (10) includes a transport belt, a drive motor that drives the transport belt to rotate, and a water collection tank (12) located below the transport belt for collecting water. The transport belt has a mesh-like structure in the shape of a U-shape. Through the power transmission of the drive motor, the transport belt can rotate stably in a circular motion to realize the continuous transport of materials. The mesh structure helps to improve permeability and material adhesion stability. The U-shape layout optimizes space utilization and transport path. The top cover of the water collection tank (12) can be opened or the side can be set as a drawer for easy cleaning.

[0021] The spraying mechanism (20) is used to clean the liquid bag. The mechanism consists of an upper spraying assembly (21), a lower spraying assembly (22), a water pump (23), an upper switch valve (211), and a lower switch valve (221). The upper spraying assembly (21) is located above the conveyor belt and sprays downwards, while the lower spraying assembly (22) is located between the upper and lower conveyor belts and sprays upwards. Both the upper spraying assembly (21) and the lower spraying assembly (22) include spray pipes (24) arranged in an array along the conveyor belt direction. Each spray pipe (24) has several spray nozzles along its length or is equipped with several independent nozzles (not shown). Under the premise of meeting basic functions, the most economical implementation is to directly open the spray nozzles on the surface of the spray pipes (24); while to optimize the spraying effect, adjustable nozzles can be added at the spray nozzle positions to precisely control the water flow pattern.

[0022] The water pump (23) provides water to the upper spray assembly (21) and the lower spray assembly (22), and regulates the water supply of the two by the upper switch valve (211) and the lower switch valve (221). Specifically, the outlet (32) of the water pump (23) is connected to the upper spray assembly (21) and the lower spray assembly (22) through the branch water pipes, and the upper switch valve (211) and the lower switch valve (221) are respectively set on the corresponding branch water pipes.

[0023] The spraying mechanism (20) can be continuous, with the spray pipes (24) of the upper spray assembly (21) and the lower spray assembly (22) continuously distributed along the length of the conveyor belt. In a preferred embodiment of this application, the spraying mechanism (20) is divided into three cleaning zones: a first cleaning zone (25), a second cleaning zone (26), and a third cleaning zone (27). Each cleaning zone is equipped with an upper spray assembly (21), a lower spray assembly (22), a water pump (23), an upper switch valve (211), and a lower switch valve (221). This partitioned configuration facilitates independent control and optimizes cleaning efficiency. The first cleaning zone (25) performs preliminary cleaning on the liquid bags entering the processing line, the second cleaning zone (26) performs deep cleaning on the liquid bags, and the third cleaning zone (27) performs final rinsing cleaning. Each cleaning zone is surrounded by a protective shell to prevent water from splashing out, and the protective shell is equipped with an observation window to facilitate observation of the cleaning process.

[0024] In one example, in the upper spray assembly (21) of the second cleaning zone (26), the spray pipes (24) of adjacent zones (three spray pipes (24) forming a zone) are specially equipped with different types of nozzles. For example, one nozzle produces a fine water mist to wash away surface impurities, while another forms a powerful water jet to wash away stubborn impurities. This allows for different levels of impact and coverage within the cleaning area, thereby more effectively treating different types of stains or surface structures and improving overall cleaning efficiency. In another embodiment, the end of the second cleaning zone (26) is also separately connected to a disinfectant for poisoning. The spraying mechanism remains unchanged, but a separate water pump and disinfectant tank are connected.

[0025] As mentioned above, the upper switch valve (211) and the lower switch valve (221) can be controlled by economical and practical manual water valves, but the operator needs to be skilled in controlling their water inflow. The upper switch valve (211) and the lower switch valve (221) can also be solenoid valves. The solenoid valves are controlled by a controller. The controller adjusts the opening and closing time and water flow of each spray component precisely according to the preset program or sensor feedback signal. This design can realize independent control strategies for different cleaning zones. For example, when the rinsing intensity is strengthened in the second cleaning zone (26), the controller can simultaneously increase the opening degree of the upper spray solenoid valve in this zone and extend the opening cycle, while maintaining the basic tumbling function of the lower spray water flow. The fast response characteristics of the solenoid valve (on / off time ≤ 0.5 seconds) can effectively match the movement rhythm of the conveyor belt and avoid water waste caused by ineffective spraying.

[0026] Furthermore, at the end of the third cleaning zone (27), at the end of the upper spray assembly (21) and the lower spray assembly (22), drying air vents (not shown) facing the upper and lower surfaces of the upper conveyor belt (11) are provided, and the air vents are funnel-shaped.

[0027] Please see Figure 1 and Figure 2 The water storage tank (30) adopts a modular compartmentalized design, including a first sub-tank (35), a second sub-tank (36), and a third sub-tank (37) corresponding to the three cleaning zones. The top inlets (34) of each sub-tank are connected in parallel to the same main water inlet pipe through pipe fittings. Of course, each sub-tank can also be supplied with water separately, which can be adjusted according to actual needs. After pre-filtration, water is supplied to the corresponding cleaning zones by a diversion pump group. The bottom drains (33) of each sub-tank are connected to the same main drain pipe through a Y-type diverter. In a preferred embodiment, after the water level of the three sub-tanks reaches a preset value (e.g., half the volume), water is continuously supplied to the third sub-tank (37) during operation while the water supply to the other sub-tanks is turned off.

[0028] Please combine Figure 4The three cleaning zones are connected to the water tank (12) via corresponding transition pipes (40) (with a square cross-section). Each transition pipe (40) is equipped with a first filter screen (41) for coarse filtration. The inclination angle of the first filter screen (41) is 45 to 60 degrees. In the preferred embodiment of this application, the first filter screen (41) is placed obliquely at a 55° angle in the transition pipe (40) from the water tank (12) to the water storage tank (30), and its 304 stainless steel mesh surface has φ2mm honeycomb-shaped through holes. Further, a 15mm high annular surrounding plate (42) is welded to the edge of the first filter screen (41) to form an impurity temporary storage area (43). A transparent observation window (44) is also provided on one side to facilitate observation of the condition of the temporary storage area (43). An annular mounting groove (45) with a depth matching the thickness of the retaining plate (42) is opened on the inner wall of the transition pipe (40) to ensure a smooth transition between the inner wall of the retaining plate (42) and the inner wall of the pipe, eliminating turbulent dead angles in the cleaning water flow. At the same time, sealing strips are provided on the side plate of the transition pipe (40) and the outer plate of the retaining plate (42) to prevent water from flowing out. After the equipment has been running for 30 minutes, the operator can open the pipe for quick replacement and cleaning.

[0029] Further, please refer to Figure 1 and Figure 2 The first sub-tank (35), the second sub-tank (36), and the third sub-tank (37) are each equipped with a second filter screen (31) for fine filtration. The inclination angle of the second filter screen (31) is 45 to 60 degrees. In a preferred embodiment of this application, the second filter screen (31) is installed at a 50° inclination angle inside the water storage tank (30) and uses a double-layer composite filter material (upper layer 80-mesh nylon mesh + lower layer stainless steel support frame). It can be understood that the lower side of the second filter screen (31) is the clean water area, while the upper side is the wastewater area.

[0030] Please combine Figure 4 Furthermore, to facilitate rinsing of the second filter screen (31), along the width direction of the water tank (30), the lower end of the transition pipe (40) is close to one side plate of the water tank (30), and the inlet (34) is provided with an extension pipe (321) so that its outlet is close to the opposite side plate of the water tank (30). The combination of the two can increase the rinsing area to a certain extent. In the preferred embodiment of this application, the extension pipe (321) passes under the transition pipe. When the water flows under the transition pipe, the transition pipe can expand the water drop area and increase the rinsing of the filter screen.

[0031] During the cleaning process, the liquid bag is conveyed into the first cleaning zone (25) via conveyor belt (11). The upper and lower spray pipes (24) spray water upwards at a flow rate of 10L / min for initial rinsing, mainly to wet and rinse larger deposits. After entering the second cleaning zone (26), the lower spray pipe (24) sprays water upwards at a flow rate of 12L / min, while the upper spray pipe (24) performs surface rinsing at a flow rate of 18L / min, providing deep cleaning to the crevices of the liquid bag. Then, in the third cleaning zone (27), pure water is used for a 20-second rinse, achieving a pesticide residue removal rate of over 92%. After double filtration, approximately 85% of the cleaning wastewater can be recycled to the sub-tank for reuse, saving 40% of water compared to traditional equipment.

[0032] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A washing machine for liquid bags, characterized in that, include: The transport mechanism (10) includes a conveyor belt (11) and a water collection tank (12) located below the conveyor belt (11) for collecting water. The spraying mechanism (20) includes an upper spraying assembly (21) and a lower spraying assembly (22) disposed on the upper and lower surfaces of the conveyor belt (11), a water pump (23) for supplying water, and an upper switch valve (211) and a lower switch valve (221) for correspondingly controlling the switching of the upper spraying assembly (21) and the lower spraying assembly (22). A water storage tank (30) is located below the water receiving tank (12) and connected through a transition pipe (40). A detachable and inclined first filter screen (41) is installed inside the transition pipe (40), and an inclined second filter screen (31) is installed inside the water storage tank (30) below the transition pipe (40). The bottom of the water storage tank (30) is provided with an outlet (32) and a drain outlet (33). The outlet (32) is connected to the water pump (23) through a water pipe and is located on one side of the lower surface of the first filter screen (41). The drain outlet (33) is connected to the outside and is located on one side of the upper surface of the first filter screen (41). An inlet (34) is provided at the upper end of the side plate of the water storage tank (30). The first filter screen (41) is flushed by water from the water tank (12) and impurities are deposited on the lower side by the inclined surface. The second filter screen (31) is flushed by water from the transition pipe (40) and the inlet (34) and impurities are directed to the drain outlet (33) by the inclined surface.

2. The cleaning machine according to claim 1, characterized in that, The spraying mechanism (20) includes a first cleaning zone (25), a second cleaning zone (26) and a third cleaning zone (27), and each zone is provided with an upper spraying assembly (21), a lower spraying assembly (22), a water pump (23), an upper switch valve (211) and a lower switch valve (221).

3. The cleaning machine according to claim 2, characterized in that, The upper spray pipe (24) in the second cleaning zone (26) includes multiple spray pipes (24), and adjacent spray pipes (24) use different nozzles to achieve different levels of water jets.

4. The cleaning machine according to claim 3, characterized in that, Both the upper switch valve (211) and the lower switch valve (221) are electronic valves, and the electronic valve controls the upper switch valve.

5. The cleaning machine according to claim 4, characterized in that, The water storage tank (30) includes a first sub-water tank (35), a second sub-water tank (36), and a third sub-water tank (37) that supply water to the first cleaning zone (25), the second cleaning zone (26), and the third cleaning zone (27).

6. The cleaning machine according to claim 5, characterized in that, The drain outlets (33) of the first sub-tank (35), the second sub-tank (36), and the third sub-tank (37) are connected by the same drain pipe.

7. The cleaning machine according to claim 1, characterized in that, The first filter (41) has an inclination angle of 45 to 60 degrees, and the second filter (31) has an inclination angle of 45 to 60 degrees.

8. The cleaning machine according to claim 1, characterized in that, The upper surface edge of the first filter screen (41) is provided with an upward-facing baffle (42), and the baffle (42) and the upper surface of the first filter screen (41) form a temporary storage area (43) for holding impurities.

9. The cleaning machine according to claim 8, characterized in that, The transition pipe (40) has a mounting groove (45) for mounting the first filter screen (41) so that the inner surface of the transition pipe (40) is flush with the inner surface of the enclosure (42).

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