Automatic quantitative filling equipment for water-based paint
By combining the vertical adjustment mechanism and the telescopic adjustment component, the problems of air bubbles and splashing during the filling process of water-based coatings are solved, achieving stable and efficient automated filling, reducing coating waste and equipment dirt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG SHUNFENG NEW MATERIAL CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-05-08
AI Technical Summary
In the current water-based paint filling process, the impact force of the metering pump when drawing paint causes bubbles and splashing, which affects filling efficiency and causes paint waste and equipment dirt.
The system employs a vertical adjustment mechanism and telescopic adjustment components, using flexible connecting pipes and conical sealing caps to control the filling height difference, reduce air bubbles and splashing, and utilizes a weighing roller conveyor to detect the filling volume, thus achieving stable filling.
It improves the stability and quality of the filling process, reduces paint splashing, avoids equipment contamination, and enhances the efficiency of automated filling.
Smart Images

Figure CN224212393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-based coating filling technology, specifically to an automated quantitative filling device for water-based coatings. Background Technology
[0002] Water-based coatings include three types: water-soluble coatings, water-dilutable coatings, and water-dispersible coatings (latex coatings). Generally, water-based coatings require separate container filling. Most existing manufacturers use metering filling machines for automated filling of water-based coatings. During filling, metering pumps typically extract the coating and deliver it to the tank. However, when the metering pump extracts the coating, the pressure causes it to be discharged directly from the pump's outlet. Upon contact with the bottom of the tank, the excessive impact force can generate numerous air bubbles, requiring defoaming treatment or settling to defoam, thus affecting the automation efficiency of the entire filling process. Furthermore, excessive impact force can cause coating splashing, leading to waste. The splashed coating also contaminates pallets, frames, and other equipment, requiring manual cleaning and disrupting the continuity of the filling operation. Therefore, this case study addresses these issues through in-depth research. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an automated quantitative filling device for water-based coatings, which solves the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an automated quantitative filling device for water-based coatings, comprising a frame, a vertical adjustment mechanism on the frame, a weighing roller conveyor below the frame, a movable frame on the movable end of the vertical adjustment mechanism, a storage tank on the movable frame, a metering pump on one side of the storage tank, the inlet of the metering pump being connected to the lower part of the storage tank, a mounting base on the front side of the storage tank, a vertical frame on the mounting base, a telescopic adjustment assembly on the vertical frame, a filling head on the movable end of the telescopic adjustment assembly, an inlet at the upper end of the filling head being connected to the outlet of the metering pump via a flexible connecting pipe, a through hole in the mounting base at the lower part of the filling head, a compression spring fitted on the outer side of the smooth lower section of the filling head, and a conical sealing cap installed at the lower end of the compression spring.
[0005] An empty drum conveyor is provided on the feed end side of the aforementioned weighing roller conveyor, and a heavy drum conveyor is provided on the discharge end side of the aforementioned weighing roller conveyor.
[0006] The aforementioned weighing roller conveyor, empty drum conveyor, and heavy drum conveyor are all equipped with guide and limiting components.
[0007] The aforementioned guide and limiting components include a support, a rotating shaft, and a limiting roller. The support is mounted on the conveyor frame, the rotating shaft is rotatably mounted on the support, and the limiting roller is fixedly mounted on the rotating shaft.
[0008] The aforementioned vertical adjustment mechanism includes a hydraulic cylinder, a guide rail, and a slider. The hydraulic cylinder is vertically mounted inside the frame, the guide rail is symmetrically arranged on both sides of the hydraulic cylinder, the slider is slidably mounted on the guide rail and fixedly connected to the moving frame, and the telescopic end of the hydraulic cylinder is connected to the lower end of the moving frame.
[0009] The aforementioned telescopic adjustment assembly includes a lead screw module and a moving block. The lead screw module is vertically mounted on the side wall of the upright frame. One end of the moving block is connected to the moving end of the lead screw module, and the other end is connected to the filling head. Beneficial effects
[0010] This utility model provides an automated quantitative filling device for water-based coatings. It has the following advantages: The automated quantitative filling device injects the water-based coating liquid into a storage tank. The coating packaging barrel is placed on a weighing roller conveyor. The vertical adjustment mechanism is controlled to move the storage tank downwards, causing the conical sealing cap to engage with the packaging barrel. As the storage tank continues to descend, the compression spring contracts, pressing the conical sealing cap tightly against the packaging barrel. The telescopic adjustment component is then activated, pushing the filling head downwards so that its lower outlet is closer to the bottom of the packaging barrel. The metering pump is then activated to extract the water-based coating from the storage tank and further inject it into the packaging barrel via a flexible connecting pipe and the filling head. As the filling volume increases... After the telescopic adjustment component drives the filling head to the top dead center, the vertical adjustment mechanism moves upward, causing the entire mounting base to move upward. This dual height adjustment effectively reduces the filling height difference, minimizing air bubbles and splashing. The weighing roller conveyor continuously monitors the filling volume. When the filling volume is about to reach the set amount, the controller can adjust the filling flow rate through the flow adjustment component on the filling head until filling is complete. After filling, the entire storage tank is controlled to return to its original position, ensuring a uniform and stable filling process, reducing paint splashing and improving filling quality. Throughout the filling process, the conical sealing cap remains fastened to the packaging barrel, preventing equipment contamination even if some paint splashes. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of an automated quantitative filling device for water-based coatings according to the present invention.
[0012] Figure 2 This is an isometric structural diagram of an automated quantitative filling device for water-based coatings according to the present invention.
[0013] Figure 3 This is a side view of the automated quantitative filling equipment for water-based coatings described in this utility model.
[0014] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at position a.
[0015] Figure 5 This is a cross-sectional view of the conical sealing cap of this utility model.
[0016] In the diagram: 1. Frame; 2. Weighing roller conveyor; 3. Moving frame; 4. Storage trough; 5. Metering pump; 6. Mounting base; 7. Vertical frame; 8. Filling head; 9. Flexible connecting pipe; 10. Compression spring; 11. Conical sealing cap; 12. Empty barrel conveyor; 13. Heavy barrel conveyor; 14. Support; 15. Rotating shaft; 16. Limiting roller; 17. Hydraulic cylinder; 18. Guide rail; 19. Slider; 20. Lead screw module; 21. Moving block. Detailed Implementation
[0017] 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.
[0018] Example: Refer to the appendix of the instruction manual Figure 1-5As can be seen, this application specifically designs an automated quantitative filling device for water-based coatings. A vertical adjustment mechanism is provided on the frame 1, and a weighing roller conveyor 2 is provided below the frame 1. A movable frame 3 is provided on the movable end of the vertical adjustment mechanism, and a storage tank 4 is installed on the movable frame 3. A metering pump 5 is provided on one side of the storage tank 4, and the inlet end of the metering pump 5 is connected to the lower part of the storage tank 4. A mounting base 6 is provided on the front side of the storage tank 4, and a vertical frame 7 is provided on the mounting base 6. A telescopic adjustment component is provided on the vertical frame 7, and a filling head 8 is provided on the movable end of the telescopic adjustment component. The upper inlet of the filling head 8 is connected to the outlet of the metering pump 5 via a flexible connecting pipe 9. The lower part of the filling head 8 passes through a through hole on the mounting base 6. A compression spring 10 is fitted on the outer side of the smooth lower section of the filling head 8. A conical sealing cap 11 is installed at the lower end of the compression spring 10. The water-based paint liquid is injected into the storage tank 4. The paint packaging barrel is placed on the weighing roller conveyor 2. The vertical adjustment mechanism is controlled to move, thereby pushing the storage tank 4 downward as a whole, and causing the conical sealing cap 11 to be fastened on the packaging barrel. The storage tank 4 is controlled to continue to move downward, causing the compression spring to... Spring 10 contracts under pressure, pressing the conical sealing cap 11 tightly onto the packaging barrel. This controls the movement of the telescopic adjustment component, which in turn pushes the filling head 8 downward, bringing its lower outlet closer to the bottom of the packaging barrel. The metering pump 5 is then activated, drawing water-based paint from the storage tank 4 and further injecting it into the packaging barrel via the flexible connecting pipe 9 and the filling head 8. As the filling volume increases, the telescopic adjustment component moves the filling head 8 upward to its top dead center, causing the vertical adjustment mechanism to move upward, thus raising the mounting base 6. This dual height adjustment effectively reduces the filling pressure. The height difference reduces the occurrence of bubbles and splashes. The weighing roller conveyor 2 continuously monitors the filling volume. When the filling volume is about to reach the set amount, the controller can adjust the filling flow rate through the flow regulating component on the filling head 8 until the filling is completed. After the filling is completed, the control storage tank 4 is reset upwards, so that the entire filling process is uniform and stable, reducing the splashing of paint in all directions during filling and improving the filling quality. During the entire filling process, the conical sealing cap 11 remains fastened to the packaging barrel, so even if some paint splashes, it will not cause the equipment to become dirty.
[0019] In a preferred embodiment, the weighing roller conveyor 2 has an empty drum conveyor 12 at its feed end and a heavy drum conveyor 13 at its discharge end. Guide and limiting components are provided on the weighing roller conveyor 2, the empty drum conveyor 12, and the heavy drum conveyor 13. These guide and limiting components include a support 14, a rotating shaft 15, and a limiting roller 16. The support 14 is mounted on the conveyor frame 1, the rotating shaft 15 is rotatably mounted on the support 14, and the limiting roller... The 16 is fixedly mounted on the rotating shaft 15. By cooperating with the rotating shaft 15, the limiting roller 16 can rotate, thereby limiting the outer wall of the packaging barrel during the movement of the packaging barrel. The empty barrel conveyor 12 can transfer the empty packaging barrel to the weighing roller conveyor 2 for filling with the upper filling equipment. After filling, the packaging barrel is transferred to the heavy barrel conveyor 13 via the weighing roller conveyor 2, and then transferred to the capping station via the heavy barrel conveyor 13, which can effectively improve the automation efficiency of the filling operation.
[0020] In specific implementation, as a preferred configuration, the above-mentioned vertical adjustment mechanism includes a hydraulic cylinder 17, a guide rail 18, and a slider 19. The hydraulic cylinder 17 is arranged vertically inside the frame 1, and the guide rail 18 is symmetrically arranged on both sides of the hydraulic cylinder 17. The slider 19 is slidably mounted on the guide rail 18 and fixedly connected to the moving frame 3. The telescopic end of the hydraulic cylinder 17 is connected to the lower end of the moving frame 3. Using the hydraulic cylinder 17 as a power source, the height of the moving frame 3 is adjusted, thereby realizing the height adjustment of the storage tank 4. The movement of the moving frame 3 is restricted by the sliders 19 on both sides and the guide rail 18, thereby effectively ensuring the stability of the height adjustment.
[0021] In the specific implementation process, as a preferred setting, the above-mentioned telescopic adjustment component includes a lead screw module 20 and a moving block 21. The lead screw module 20 is set vertically on the side wall of the upright 7. One end of the moving block 21 is connected to the moving end of the lead screw module 20, and the other end is connected to the filling head 8. The moving block 21 is adjusted by using the lead screw module 20 as a power component, thereby realizing the height adjustment of the filling head 8. The structure is simple and the degree of automation is high.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automated quantitative filling device for water-based coatings, comprising a frame, characterized in that, A vertical adjustment mechanism is provided on the frame, and a weighing roller conveyor is provided below the frame. A movable frame is provided on the movable end of the vertical adjustment mechanism, and a storage tank is installed on the movable frame. A metering pump is provided on one side of the storage tank, and the inlet end of the metering pump is connected to the lower part of the storage tank. A mounting base is provided on the front side of the storage tank, and a vertical frame is provided on the mounting base. A telescopic adjustment component is provided on the vertical frame, and a filling head is provided on the movable end of the telescopic adjustment component. The upper inlet of the filling head is connected to the outlet end of the metering pump through a flexible connecting pipe. The lower part of the filling head passes through a through hole on the mounting base, and a compression spring is fitted on the outer side of the lower smooth section of the filling head. A conical sealing cap is installed on the lower end of the compression spring.
2. The automated quantitative filling equipment for water-based coatings according to claim 1, characterized in that, An empty drum conveyor is provided on one side of the inlet end of the weighing roller conveyor, and a heavy drum conveyor is provided on one side of the outlet end of the weighing roller conveyor.
3. The automated quantitative filling equipment for water-based coatings according to claim 2, characterized in that, The weighing roller conveyor, empty drum conveyor, and heavy drum conveyor are all equipped with guide and limiting components.
4. The automated quantitative filling equipment for water-based coatings according to claim 3, characterized in that, The guide and limiting component includes a support, a rotating shaft, and a limiting roller. The support is mounted on the conveyor frame, the rotating shaft is rotatably mounted on the support, and the limiting roller is fixedly mounted on the rotating shaft.
5. The automated quantitative filling equipment for water-based coatings according to claim 1, characterized in that, The vertical adjustment mechanism includes a hydraulic cylinder, a guide rail, and a slider. The hydraulic cylinder is vertically mounted inside the frame. The guide rail is symmetrically arranged on both sides of the hydraulic cylinder. The slider is slidably mounted on the guide rail and fixedly connected to the moving frame. The telescopic end of the hydraulic cylinder is connected to the lower end of the moving frame.
6. The automated quantitative filling equipment for water-based coatings according to claim 1, characterized in that, The telescopic adjustment assembly includes a lead screw module and a moving block. The lead screw module is vertically mounted on the side wall of the upright frame. One end of the moving block is connected to the moving end of the lead screw module, and the other end is connected to the filling head.