Environment-friendly pulp molding mold cleaning device

By combining an ultrasonic cleaning tank with a water circulation component, the problems of incomplete cleaning and resource waste in traditional pulp molding die cleaning equipment are solved. This enables the recycling of cleaning fluid and thorough cleaning of the mold surface, improving production efficiency and environmental friendliness.

CN224542532UActive Publication Date: 2026-07-24DEZHOU BENO PACKAGING PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU BENO PACKAGING PROD CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional pulp molding die cleaning equipment suffers from problems such as incomplete cleaning, resource waste, and high environmental protection pressure. Especially in the cleaning of molds with complex three-dimensional curved surfaces, the spray liquid cannot fully cover the mold, making it difficult to remove residues, increasing the rewashing rate and manual rewashing costs. Furthermore, the single-use of cleaning liquid leads to water waste and environmental pollution.

Method used

The design incorporates an ultrasonic cleaning tank combined with a water circulation component and an automatically lifting cleaning basket. The cleaning solution is recycled through a filter and a water pump. The built-in components of the ultrasonic cleaning tank ensure the mold is dispersed, and the automatic lifting of the cleaning basket is achieved through a motor-driven belt drive, ensuring that the mold surface is thoroughly cleaned.

Benefits of technology

It enables automatic recycling of cleaning fluid, reduces water consumption and wastewater discharge, ensures thorough cleaning of mold surfaces, improves production efficiency and mold life, and reduces environmental protection pressure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to environmental protection cleaning device technical field discloses an environmental protection paper pulp molding mold cleaning device, including support frame no.
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Description

Technical Field

[0001] This utility model relates to the field of environmentally friendly cleaning devices, and in particular to an environmentally friendly pulp molding die cleaning device. Background Technology

[0002] In the production of pulp molded products, the mold, as the core component of the molding process, directly affects the molding quality, demolding smoothness, and the final product's appearance and performance due to its surface cleanliness. Pulp molding is widely used in food containers, electronic product liners, and industrial cushioning packaging. During continuous production, fibrous pulp, adhesive deposits, and trace additives easily remain on the mold surface. If not cleaned thoroughly and promptly, this not only reduces the mold's thermal conductivity, affecting the drying and molding cycle of the next batch of products, but also leads to surface defects, adhesion, and even demolding failure, severely impacting production efficiency and yield. Typically, pulp molding molds are cleaned after use to ensure stable production of pulp molded products.

[0003] Traditional pulp molding die cleaning equipment typically employs a fixed cleaning tank combined with a spray system. Its basic structure usually includes a cleaning chamber with a fixed array of nozzles. A high-pressure water pump sprays prepared cleaning fluid from multiple angles onto the die surface to wash away adhering impurities. Some equipment also integrates a heating system to increase the temperature of the cleaning fluid and enhance its cleaning power. During the cleaning process, the die is generally held stationary at the cleaning station by manual labor or a robotic arm, receiving the spray treatment in a static state. The wastewater after cleaning is simply filtered and then discharged directly.

[0004] However, in practical applications, because molds are often complex three-dimensional curved structures and require batch cleaning, the spray liquid cannot fully cover all surface areas, especially in grooves, where residues are difficult to remove completely, severely affecting the cleaning effect. This incomplete cleaning caused by the stacking of objects not only increases the rewash rate and manual rewashing costs but also indirectly shortens the mold's lifespan. Furthermore, the waste liquid generated during the cleaning process is mostly discharged after single use, lacking an effective filtration, purification, and recycling mechanism, leading to water waste and increased environmental pressure. Therefore, an environmentally friendly pulp molding mold cleaning device is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an environmentally friendly pulp molding die cleaning device, which aims to improve the problem of increased environmental treatment pressure caused by the lack of recycling mechanism in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an environmentally friendly pulp molding die cleaning device, including a support frame, a water pipe fixedly connected to the outer wall of the ultrasonic cleaning tank, a hollow column fixedly connected to the bottom of the water pipe, and a water circulation component provided at the bottom of the water pipe. The water circulation assembly includes a filter element and a water pump. The outer wall of the filter element is fixedly connected to the inside of a hollow column. One side of the water pump is fixedly connected to one side wall of a support frame. A second water pipe is fixedly connected to the output end of the water pump. A support column is fixedly connected to the outer wall of the hollow column. A water collection pipe is fixedly connected inside the filter element. One end of the water collection pipe is fixedly connected to a water tank. A water pumping pipe is fixedly connected inside the water tank. One end of the water pumping pipe is connected to the input end of the water pump. The other end of the second water pipe is fixedly connected to a water distribution pipe. The outer wall of the water distribution pipe is fixedly connected to the inside of an ultrasonic cleaning tank. A storage assembly is provided inside the ultrasonic cleaning tank.

[0007] As a further description of the above technical solution: The storage assembly includes a cleaning basket, which is disposed inside the ultrasonic cleaning tank.

[0008] As a further description of the above technical solution: The top of the first support frame is fixedly connected to the second support frame, and the second support frame is rotatably connected to symmetrical connecting columns. A guide rail is fixedly connected to one side of the second support frame.

[0009] As a further description of the above technical solution: A motor is fixedly connected to the top of the support frame, and the output end of the motor is connected to one of the connecting columns. A belt is sleeved between the two connecting columns.

[0010] As a further description of the above technical solution: A lifting block is fixedly connected to one side of the outer wall of the belt, and a connecting block is fixedly connected to one side of the lifting block.

[0011] As a further description of the above technical solution: A slider is fixedly connected to the outer wall of the connecting block, and the slider is slidably connected to the outer wall of the guide rail.

[0012] As a further description of the above technical solution: A connecting rod is fixedly connected to the outer wall of the connecting block, and one side of the connecting rod is fixedly connected to one side of the cleaning basket.

[0013] This utility model has the following beneficial effects: 1. In this utility model, with the cooperation of filter element and water pump, the cleaning wastewater is filtered by the filter element inside the hollow column to trap impurities, and then pumped by the water pump for purification and returned to the ultrasonic cleaning tank. This realizes the automatic recycling of cleaning liquid, reduces the consumption of clean water and wastewater discharge, and solves the problem of resource waste and environmental pollution caused by the single use of cleaning liquid in traditional cleaning devices. 2. In this utility model, the connecting column is driven by a motor to rotate, which drives the belt drive, so that the lifting block drives the cleaning basket connected by the connecting rod to rise and fall smoothly, thereby realizing the automatic lifting and lowering of the cleaning basket, maintaining an appropriate distance during the mold cleaning process, avoiding stacking, and thus achieving thorough cleaning of the mold, solving the problem of incomplete cleaning caused by stacking of molds during the cleaning process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of an environmentally friendly pulp molding die cleaning device proposed in this utility model; Figure 2 This is a schematic diagram of the hollow column structure of an environmentally friendly pulp molding die cleaning device proposed in this utility model; Figure 3 This is a schematic diagram of the filter element of an environmentally friendly pulp molding die cleaning device proposed in this utility model; Figure 4 This is a schematic diagram of the cleaning basket of an environmentally friendly pulp molding die cleaning device proposed in this utility model; Figure 5 This is a schematic diagram of the slider of an environmentally friendly pulp molding die cleaning device proposed in this utility model.

[0015] Legend: 1. Support frame one; 2. Ultrasonic cleaning tank; 3. Water pipe one; 4. Hollow column; 5. Support column; 6. Filter element; 7. Water collection pipe; 8. Water tank; 9. Water pump; 10. Water pipe two; 11. Water distribution pipe; 12. Water extraction pipe; 13. Connecting rod; 14. Connecting block; 15. Sliding block; 16. Guide rail; 17. Lifting block; 18. Connecting column; 19. Belt; 20. Motor; 21. Support frame two; 22. Cleaning basket. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-3An embodiment of this utility model is provided: an environmentally friendly pulp molding mold cleaning device, including a support frame 1, an ultrasonic cleaning tank 2 fixedly connected inside the support frame 1. The existing ultrasonic cleaning tank 2 is usually composed of a transducer composed of ultrasonic transducers, which uses the cavitation effect to peel off the residue on the mold surface to achieve the cleaning effect. This is the prior art and will not be described in detail here. A water pipe 3 is fixedly connected to the outer wall of the ultrasonic cleaning tank 2. The water pipe 3 is made of PVC material and serves as a directional outlet channel for wastewater. A hollow column 4 is fixedly connected to the bottom of the water pipe 3. A water circulation component is set at the bottom of the water pipe 3. The water circulation assembly includes a filter element 6 and a water pump 9. The outer wall of the filter element 6 is fixedly connected to the inside of the hollow column 4. The filter element 6 uses an RO reverse osmosis membrane and a water collection screen. The RO reverse osmosis membrane is folded in half, and a water collection screen is placed in the middle, surrounding the water collection pipe 7. One side of the water pump 9 is fixedly connected to the side wall of the support frame 1. The output end of the water pump 9 is fixedly connected to the water pipe 10. The outer wall of the hollow column 4 is fixedly connected to the support column 5. The water collection pipe 7 is fixedly connected inside the filter element 6. The water collection screen in the filter element 6 collects the filtered cleaning liquid, which converges into the water collection pipe 7 and flows into the water tank 8. One end of the water collection pipe 7 is fixed. A water tank 8 is connected, and a water suction pipe 12 is fixedly connected inside the water tank 8. One end of the water suction pipe 12 is connected to the input end of a water pump 9. The water pump 9 is a stainless steel centrifugal pump that drives the impeller to rotate and create negative pressure. The filtered cleaning liquid is drawn from the water tank 8 and pumped to a porous stainless steel water distribution pipe 11. Spray holes are evenly opened on the outer wall of the water distribution pipe 11. The other end of the water pipe 10 is fixedly connected to the water distribution pipe 11. The outer wall of the water distribution pipe 11 is fixedly connected to the inside of the ultrasonic cleaning tank 2 to achieve uniform backflow and spraying of the cleaning liquid and to build a closed-loop water circulation. The ultrasonic cleaning tank 2 is equipped with a storage component.

[0018] Reference Figure 1 , Figure 4 and Figure 5The storage assembly includes a cleaning basket 22, which is installed inside the ultrasonic cleaning tank 2. The cleaning basket 22 is made of 304 stainless steel mesh welded together, with fine and uniform mesh openings to keep the molds dispersed, avoiding stacking and obstruction during manual placement, and ensuring that the cleaning solution fully penetrates the mold surface and corner gaps. The mesh openings are fine and uniform. A second support frame 21 is fixedly connected to the top of the first support frame 1. The second support frame 21 has symmetrically connected upper and lower connecting columns 18 inside. A guide rail 16 is fixedly connected to one side of the second support frame 21. A motor 2 is fixedly connected to the top of the first support frame 1. 0. The output end of motor 20 is connected to one of the connecting posts 18. A belt 19 is sleeved between the two connecting posts 18. A lifting block 17 is fixedly connected to one side of the outer wall of belt 19. A connecting block 14 is fixedly connected to one side of lifting block 17. A slider 15 is fixedly connected to the outer wall of connecting block 14. The slider 15 is slidably connected to the outer wall of guide rail 16. Guide rail 16 cooperates with slider 15 to drive the cleaning basket 22 to rise and fall. Guide rail 16 provides longitudinal guidance for slider 15. A connecting rod 13 is fixedly connected to the outer wall of connecting block 14. One side of connecting rod 13 is fixedly connected to one side of cleaning basket 22.

[0019] Working Principle: In using this environmentally friendly pulp molding mold cleaning device, the pulp molding molds to be cleaned are first placed at intervals in the cleaning basket 22. The motor 20 is started, driving the connecting column 18 to rotate. The belt 19 outside the connecting column 18 drives the lifting block 17 downwards. The slider 15 slides along the guide rail 16, guiding the movement of the cleaning basket 22 until it descends into the ultrasonic cleaning tank 2 inside the support frame 1. When the ultrasonic cleaning tank 2 is working, it performs ultrasonic cleaning on the molds inside the cleaning basket 22, removing contaminated material. The cleaning solution flows into the water pipe 3 through the overflow port of the ultrasonic cleaning tank 2, and finally into the hollow column 4. The filter element 6 inside the column filters the contaminated cleaning solution. The filtered cleaning solution gathers in the water collection pipe 7 inside the filter element 6 and flows into the water tank 8. Then, the water pump 9 starts and draws the filtered cleaning solution through the water suction pipe 12 and delivers it to the water distribution pipe 11 through the water pipe 10. The water distribution pipe 11 has multiple holes through which the cleaning solution flows back into the ultrasonic cleaning tank 2, completing the water recycling. After cleaning, the motor 20 reverses and drives the cleaning basket 22 to rise, making it easy to remove the cleaned pulp molding mold.

Claims

1. An environmentally friendly pulp molding die cleaning device, comprising a support frame (1), characterized in that: An ultrasonic cleaning tank (2) is fixedly connected inside the support frame (1). A water pipe (3) is fixedly connected to the outer wall of the ultrasonic cleaning tank (2). A hollow column (4) is fixedly connected to the bottom of the water pipe (3). A water circulation component is provided at the bottom of the water pipe (3). The water circulation assembly includes a filter element (6) and a water pump (9). The outer wall of the filter element (6) is fixedly connected to the inside of the hollow column (4). One side of the water pump (9) is fixedly connected to the side wall of the support frame (1). The output end of the water pump (9) is fixedly connected to a water pipe (10). The outer wall of the hollow column (4) is fixedly connected to a support column (5). The inside of the filter element (6) is fixedly connected to a water collection pipe (7). One end of the water collection pipe (7) is fixedly connected to a water tank (8). The inside of the water tank (8) is fixedly connected to a water pump pipe (12). One end of the water pump pipe (12) is connected to the input end of the water pump (9). The other end of the water pipe (10) is fixedly connected to a water distribution pipe (11). The outer wall of the water distribution pipe (11) is fixedly connected to the inside of the ultrasonic cleaning tank (2). The ultrasonic cleaning tank (2) is equipped with a storage assembly.

2. The environmentally friendly pulp molding die cleaning device according to claim 1, characterized in that: The storage assembly includes a cleaning basket (22), which is disposed inside the ultrasonic cleaning tank (2).

3. The environmentally friendly pulp molding die cleaning device according to claim 1, characterized in that: The support frame one (1) is fixedly connected to the top of the support frame two (21), and the support frame two (21) is rotatably connected to the upper and lower symmetrical connecting columns (18), and the support frame two (21) is fixedly connected to one side of the guide rail (16).

4. The environmentally friendly pulp molding die cleaning device according to claim 1, characterized in that: A motor (20) is fixedly connected to the top of the support frame (1). The output end of the motor (20) is connected to one of the connecting columns (18). A belt (19) is sleeved between the two connecting columns (18).

5. The environmentally friendly pulp molding die cleaning device according to claim 4, characterized in that: A lifting block (17) is fixedly connected to one side of the outer wall of the belt (19), and a connecting block (14) is fixedly connected to one side of the lifting block (17).

6. The environmentally friendly pulp molding die cleaning device according to claim 5, characterized in that: The outer wall of the connecting block (14) is fixedly connected to a slider (15), and the slider (15) is slidably connected to the outer wall of the guide rail (16).

7. The environmentally friendly pulp molding die cleaning device according to claim 5, characterized in that: A connecting rod (13) is fixedly connected to the outer wall of the connecting block (14), and one side of the connecting rod (13) is fixedly connected to one side of the cleaning basket (22).