Defoaming device for water-based paint production
By designing the control frame and stirring rod, precise control of the defoamer and complete elimination of air bubbles in the coating are achieved, solving the problem of difficulty in controlling the amount of defoamer added in traditional water-based coating production, and avoiding waste and incomplete defoaming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
In traditional water-based coating production, it is difficult to precisely control the amount of defoamer added, which affects the defoaming effect and may cause waste.
A control frame was designed to precisely control the feeding speed and flow rate of the defoamer through the cooperation of a diamond-shaped turntable and a lead screw. Combined with the stirring rod in the paint storage rack, it ensures that the bubbles are completely eliminated.
It enables precise use of defoamer, prevents waste, and ensures complete elimination of air bubbles in the paint through stirring.
Smart Images

Figure CN224071245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-based coatings technology, specifically to a defoaming device for water-based coating production. Background Technology
[0002] Water-based coatings are coatings that use water as a solvent or dispersion medium. They offer advantages such as being environmentally friendly, non-toxic, odorless, and easy to apply, making them widely used in construction, furniture, automobiles, and many other fields. However, during the production process of water-based coatings, the mixing and reaction of various raw materials often generates a large amount of foam. This foam not only affects the quality of the coating but may also adversely impact production equipment and processes.
[0003] According to patent document CN213192612U, a defoaming device for water-based coating production is disclosed, including a placement cylinder; a mounting ring disposed on the top of the placement cylinder; an outer support plate fixed to the upper side of the inner surface of the mounting ring; and a mounting handle fixed to the top of the mounting ring, with an inner support plate fixedly connected to the middle of the bottom inner side of the mounting handle via a connecting plate. This defoaming device for water-based coating production utilizes a gear on the stirring rod of a stirring assembly that meshes with an inner gear ring. When the stirring rod rotates, the gear interacts with the inner gear ring, causing a U-shaped mounting frame to rotate in a ring around the center of the placement cylinder via a sliding member at the bottom along an annular groove. This means that while the stirring assembly rotates itself, it can also rotate in a ring around the center of the placement cylinder, thus more evenly and thoroughly stirring the water-based coating inside the placement cylinder and more completely removing internal air bubbles.
[0004] Water-based coatings are typically defoamed by adding defoamers to the coating. However, traditional defoaming methods often make it difficult to precisely control the amount of defoamer added, which not only affects the defoaming effect but may also lead to waste of the defoamer. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a defoaming device for the production of water-based coatings, thereby achieving precise control over the amount of defoamer added.
[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes a control frame, and a paint storage rack is fixedly connected to the bottom front side of the control frame;
[0007] The control frame includes two L-shaped support plates. A crossbar is fixedly connected to the top of each of the two L-shaped support plates. An L-shaped connecting rod is fixedly connected to the rear top of each of the two crossbars. A U-shaped sliding frame is fixedly connected to the top of each of the two L-shaped connecting rods. A defoamer storage tank connecting plate is fixedly connected to the outer side of each of the two L-shaped connecting rods. A defoamer storage tank is fixedly connected to the front side of the inner side of the two defoamer storage tank connecting plates. A discharge hose is fixedly connected to the bottom of the defoamer storage tank.
[0008] Preferably, a lifting plate is slidably connected to the inner side of the U-shaped sliding frame, a lead screw is fixedly connected to the rear side of the lifting plate, a motor placement compartment is fixedly connected to the rear side of the inner side of the two L-shaped connecting rods, a motor is fixedly connected to the inner wall of the motor placement compartment, the output end of the motor extends to the top of the outer wall of the motor placement compartment and is fixedly connected to a lead screw, and the outer wall of the lead screw is threadedly connected to the inner wall of the transmission block.
[0009] Preferably, a rotating motor placement compartment is fixedly connected to the front side of the lifting plate, a rotating motor is fixedly connected to the inner wall of the rotating motor placement compartment, the output end of the rotating motor extends to the bottom of the outer wall of the rotating motor placement compartment and extends to the inner side of the two rhomboid turntables, and the output end of the rotating motor is fixedly connected to the rhomboid turntables.
[0010] Preferably, the size of the rhomboid turntable gradually increases from top to bottom. Rotary wheels are movably connected to the left and right sides of the outer wall of the rhomboid turntable. Rotating rods are rotatably connected to the outer walls of the two rotating wheels. The middle part of the bottom of the two rotating rods is rotatably connected to the front top of the two crossbars. Extrusion blocks are fixedly connected to the front inner side of the two rotating rods. The inner sides of the two extrusion blocks are respectively attached to the outer sides of the feeding hose.
[0011] Preferably, the paint storage rack includes a U-shaped connecting plate, the inner side of which is fixedly connected to the outer side of two L-shaped support plates, a paint storage tank is fixedly connected to the top front side of the U-shaped connecting plate, the top of the paint storage tank is aligned with the bottom of the discharge hose, and a stirring rod is rotatably connected to the middle of the bottom of the inner wall of the paint storage tank.
[0012] Preferably, the bottom end of the stirring rod extends to the bottom of the outer wall of the U-shaped connecting plate and is fixedly connected to a turntable. The outer wall of the turntable is fitted with a track, and the inner wall of the track away from the turntable is fitted with a second turntable. The bottom of the second turntable is fixedly connected to a turntable motor, and the bottom of the second turntable is fixedly connected to the output end of the turntable motor. The rear side of the turntable motor is fixedly connected to a turntable motor connecting block, and the outer wall of the turntable motor connecting block is fixedly connected to the inner side of two L-shaped support plates.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By setting up a control frame, it is easy to control the amount of defoamer used, preventing waste caused by excessive use of defoamer. Specifically, to defoam water-based paint, first pour the paint into the front of the top of the storage rack, start the rotating motor, the motor drives the diamond-shaped turntable to rotate, pushes the rotating wheel and rotating rod to swing, and the extrusion block loosens or squeezes the feeding hose accordingly, changing the size of the feeding port space of the feeding hose, and adjusting the feeding speed of the defoamer. If it is necessary to completely seal the feeding hose, start the motor to rotate the screw, the transmission block rises and falls, the lifting plate drives the rotating motor chamber and motor to rise and fall, the size of the diamond-shaped turntable gradually increases from the top to the bottom, when the turntable rises, the swing amplitude of the rotating rod increases, the extrusion block approaches the feeding hose until it is completely attached, the hose is sealed, and the feeding of defoamer stops;
[0015] 2. By setting up a paint storage rack, air bubbles are detected in water-based paints to prevent incomplete bubble elimination. Specifically, when testing water-based paints, the operator starts the turntable motor, which drives the second turntable, the conveyor belt, and the stirring rod to rotate and stir the paint. If air bubbles appear on the paint surface, it means that the air bubbles have not been completely eliminated. The control rack needs to be restarted to allow the defoamer to continue dripping into the paint for secondary treatment until no more air bubbles emerge, ensuring that the air bubbles in the paint are completely eliminated. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;
[0017] Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of this utility model;
[0018] Figure 3 This is a schematic diagram of the three-dimensional separation structure of the control frame of this utility model;
[0019] Figure 4 This is a three-dimensional sectional view of the paint storage rack of this utility model.
[0020] In the diagram: 1. Control frame; 11. L-shaped support plate; 12. Crossbar; 13. L-shaped connecting rod; 14. Motor placement compartment; 15. Motor; 16. Lead screw; 17. Transmission block; 18. Lifting plate; 19. U-shaped slide frame; 110. Rotary motor placement compartment; 111. Rotary motor; 112. Diamond-shaped turntable; 113. Rotating rod; 114. Rotating wheel; 115. Extrusion block; 116. Defoamer storage tank connecting plate; 117. Defoamer storage tank; 118. Discharge hose; 2. Paint storage rack; 21. U-shaped connecting plate; 22. Paint storage tank; 23. Stirring rod; 24. Turntable; 25. Track; 26. Second turntable; 27. Turntable motor; 28. Turntable motor connecting block. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 This utility model provides a technical solution: it includes a control frame 1, and a paint storage rack 2 is fixedly connected to the bottom front side of the control frame 1.
[0023] Please see Figure 2-3 The control frame 1 includes two L-shaped support plates 11. A crossbar 12 is fixedly connected to the top of each L-shaped support plate 11. An L-shaped connecting rod 13 is fixedly connected to the rear top of each crossbar 12. A U-shaped sliding frame 19 is fixedly connected to the top of each L-shaped connecting rod 13. A defoamer storage tank connecting plate 116 is fixedly connected to the outer side of each L-shaped connecting rod 13. A defoamer storage tank 117 is fixedly connected to the front inner side of the two defoamer storage tank connecting plates 116. A discharge hose 118 is fixedly connected to the bottom of the defoamer storage tank 117. A lifting plate 18 is slidably connected to the inner side of the U-shaped sliding frame 19. A lead screw 16 is fixedly connected to the rear side of the lifting plate 18. A motor placement chamber 14 is fixedly connected to the rear inner side of each L-shaped connecting rod 13. A motor 15 is fixedly connected to the inner wall of the motor placement chamber 14. The output end of the motor 15 extends to the top of the outer wall of the motor placement chamber 14 and is fixedly connected to the lead screw 16. The outer wall of the lead screw 16 is threaded to the inner wall of the transmission block 17. The front side of the lifting plate 18 is fixedly connected to the rotating motor placement chamber 110. The inner wall of the rotating motor placement chamber 110 is fixedly connected to the rotating motor 111. The output end of the rotating motor 111 extends to the bottom of the outer wall of the rotating motor placement chamber 110 and extends to the inner side of the two rhomboid turntables 112. The output end of the rotating motor 111 is fixedly connected to the rhomboid turntables 112. The size of the rhomboid turntables 112 gradually increases from the top to the bottom. The left and right sides of the outer wall of the rhomboid turntables 112 are movably connected to the rotating wheels 114 respectively. The outer walls of the two rotating wheels 114 are rotatably connected to the rotating rods 113 respectively. The middle part of the bottom of the two rotating rods 113 is rotatably connected to the front of the top of the two crossbars 12 respectively. The front side of the inner side of the two rotating rods 113 is fixedly connected to the pressing block 115 respectively. The inner side of the two pressing blocks 115 is respectively attached to the two sides of the outer wall of the feeding hose 118.
[0024] When defoaming water-based paint is required, first pour the water-based paint into the top front side of the paint storage rack 2, then start the rotating motor 111. The output end of the rotating motor 111 drives the diamond-shaped turntable 112 to rotate. When the diamond-shaped turntable 112 rotates, it will push the rotating wheel 114 and the rotating rod 113 to swing. When the two rotating rods 113 swing, they will drive the extrusion block 115 to loosen or extrude the feeding hose 118. After the feeding hose 118 is extruded, the size of the feeding port of the feeding hose 118 is changed, thereby adjusting the feeding speed of the defoamer in the defoamer storage tank 117.
[0025] When the extrusion process is complete and the feeding hose 118 needs to be completely sealed, the motor 15 is started. The output end of the motor 15 drives the lead screw 16 to rotate. When the lead screw 16 rotates, it drives the transmission block 17 to move up and down. When the transmission block 17 moves up and down, it drives the lifting plate 18 to move up and down. When the lifting plate 18 moves up and down, it drives the rotating motor placement chamber 110 and the rotating motor 111 to move up and down. When the rotating motor 111 moves up and down, it drives the diamond-shaped turntable 112. Since the size of the diamond-shaped turntable 112 gradually increases from top to bottom, when the diamond-shaped turntable 112 rises, the rotation amplitude of the two rotating rods 113 gradually increases. When the two rotating rods 113 swing, they drive the extrusion block 115 to gradually approach the feeding hose 118 until the two extrusion blocks 115 are completely in contact with the feeding hose 118, completely sealing the feeding hose 118. At this time, the defoamer in the defoamer storage tank 117 stops discharging, which makes it easier to control the amount of defoamer used and prevents waste caused by excessive use of defoamer.
[0026] Please see Figure 4 The paint storage rack 2 includes a U-shaped connecting plate 21. The inner side of the U-shaped connecting plate 21 is fixedly connected to the outer side of two L-shaped support plates 11. A paint storage tank 22 is fixedly connected to the top front side of the U-shaped connecting plate 21. The top of the paint storage tank 22 is aligned with the bottom of the discharge hose 118. A stirring rod 23 is rotatably connected to the middle of the bottom of the inner wall of the paint storage tank 22. The bottom end of the stirring rod 23 extends to the bottom of the outer wall of the U-shaped connecting plate 21 and is fixedly connected to a turntable 24. A track 25 is fitted on the outer wall of the turntable 24. A second turntable 26 is fitted on the inner wall of the track 25 away from the turntable 24. A turntable motor 27 is fixedly connected to the bottom of the second turntable 26. The bottom of the second turntable 26 is fixedly connected to the output end of the turntable motor 27. A turntable motor connecting block 28 is fixedly connected to the rear side of the turntable motor 27. The outer wall of the turntable motor connecting block 28 is fixedly connected to the inner side of the two L-shaped support plates 11.
[0027] When it is necessary to test whether air bubbles still exist in the water-based coating, the operator starts the turntable motor 27. The output of the turntable motor 27 drives the second turntable 26 to rotate, the second turntable 26 drives the track 25 to rotate, the track 25 drives the turntable 24 to rotate, and the turntable 24 drives the stirring rod 23 to rotate inside the coating storage tank 22, stirring the coating inside the coating storage tank 22 and causing the coating inside the coating storage tank 22 to tumble. During the tumbling process, if air bubbles rise to the surface of the coating, the air bubbles in the surface water-based coating are not completely eliminated. At this time, the control frame 1 is restarted to control the defoamer in the defoamer storage tank 117 to continue dripping into the water-based coating in the coating storage tank 22 for a second defoaming treatment until no more air bubbles emerge when the coating tumbles, and the air bubbles in the surface water-based coating are completely eliminated.
[0028] Working principle: When defoaming water-based paint is required, first pour the water-based paint into the top front side of the paint storage rack 2, then start the rotating motor 111. The output end of the rotating motor 111 drives the diamond-shaped turntable 112 to rotate. When the diamond-shaped turntable 112 rotates, it pushes the rotating wheel 114 and the rotating rod 113 to swing. When the two rotating rods 113 swing, they drive the extrusion block 115 to loosen or squeeze the feeding hose 118. After the feeding hose 118 is squeezed, the size of the feeding port of the feeding hose 118 is changed, thereby adjusting the feeding speed of the defoamer in the defoamer storage tank 117. When the extrusion is complete and the feeding hose 118 needs to be completely sealed, the motor 15 is started. The output end of the motor 15 drives the lead screw 16. When the screw 16 rotates, it drives the transmission block 17 to move up and down. When the transmission block 17 moves up and down, it drives the lifting plate 18 to move up and down. When the lifting plate 18 moves up and down, it drives the rotating motor placement chamber 110 and the rotating motor 111 to move up and down. When the rotating motor 111 moves up and down, it drives the diamond-shaped turntable 112. Since the size of the diamond-shaped turntable 112 gradually increases from top to bottom, when the diamond-shaped turntable 112 is raised, the rotation amplitude of the two rotating rods 113 gradually increases. At this time, when the two rotating rods 113 swing, they will drive the extrusion block 115 to gradually approach the feeding hose 118 until the two extrusion blocks 115 are completely attached to the feeding hose 118, completely sealing the feeding hose 118.
[0029] When it is necessary to test whether air bubbles are still present in the water-based coating, the operator starts the turntable motor 27. The output of the turntable motor 27 drives the second turntable 26 to rotate, the second turntable 26 drives the track 25 to rotate, the track 25 drives the turntable 24 to rotate, and the turntable 24 drives the stirring rod 23 to rotate inside the coating storage tank 22, stirring the coating inside the coating storage tank 22 and causing the coating inside the coating storage tank 22 to tumble. During the tumbling process, if air bubbles rise to the surface of the coating, the air bubbles in the surface water-based coating are not completely eliminated. At this time, the control frame 1 is restarted to control the defoamer in the defoamer storage tank 117 to continue dripping into the water-based coating in the coating storage tank 22.
[0030] 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. A defoaming device for water-based paint production, characterized by: Including control frame (1), the front side bottom of control frame (1) is fixedly connected with paint storage rack (2); The control frame (1) includes two L-shaped support plates (11), the top of each of the two L-shaped support plates (11) is fixedly connected with a horizontal rod (12), the top rear side of each of the two horizontal rods (12) is fixedly connected with an L-shaped connecting rod (13), the top of each of the two L-shaped connecting rods (13) is fixedly connected with a U-shaped sliding groove frame (19), the outer side of each of the two L-shaped connecting rods (13) is fixedly connected with a defoaming agent storage tank connecting plate (116), the front side of the inner side of each of the two defoaming agent storage tank connecting plates (116) is fixedly connected with a defoaming agent storage tank (117), and the bottom of the defoaming agent storage tank (117) is fixedly connected with a discharging hose (118).
2. The defoaming device for water-based paint production according to claim 1, characterized in that: The inner side of the U-shaped sliding groove frame (19) is slidably connected with a lifting plate (18), the rear side of the lifting plate (18) is fixedly connected with a lead screw (16), the rear side of the inner side of each of the two L-shaped connecting rods (13) is fixedly connected with a motor placing bin (14), the inner wall of the motor placing bin (14) is fixedly connected with a motor (15), the output end of the motor (15) extends to the outer wall top of the motor placing bin (14) and is fixedly connected with the lead screw (16), and the outer wall of the lead screw (16) is threadedly connected to the inner wall of a transmission block (17).
3. The defoaming device for water-based paint production according to claim 2, characterized in that: The front side of the lifting plate (18) is fixedly connected with a rotating motor placing bin (110), the inner wall of the rotating motor placing bin (110) is fixedly connected with a rotating motor (111), the output end of the rotating motor (111) extends to the outer wall bottom of the rotating motor placing bin (110) and extends to the inner side of two rhombic turntables (112), and the output end of the rotating motor (111) is fixedly connected with the rhombic turntable (112).
4. The defoaming device for water-based paint production according to claim 3, characterized in that: The size of the rhombic turntable (112) gradually increases from top to bottom, and the left and right sides of the outer wall of the rhombic turntable (112) are movably connected with rotating wheels (114), respectively, the outer wall of each of the two rotating wheels (114) is rotatably connected with a rotating rod (113), the middle part of the bottom of each of the two rotating rods (113) is rotatably connected to the top front side of each of the two horizontal rods (12), the front side of the inner side of each of the two rotating rods (113) is fixedly connected with a pressing block (115), and the inner side of each of the two pressing blocks (115) is in contact with the outer wall of the two sides of the discharging hose (118).
5. The defoaming device for water-based paint production according to claim 1, characterized in that: The inner side of the U-shaped connecting plate (21) is fixedly connected to the outer side of each of the two L-shaped support plates (11), respectively, the top front side of the U-shaped connecting plate (21) is fixedly connected with a paint storage tank (22), the top of the paint storage tank (22) is aligned with the bottom of the discharging hose (118), and the inner wall bottom of the paint storage tank (22) is rotatably connected with a stirring rod (23).
6. The defoaming device for producing water-based paint according to claim 5, characterized in that: The bottom end of the stirring rod (23) extends to the bottom of the outer wall of the U-shaped connecting plate (21) and is fixedly connected with a rotating disc (24), the outer wall of the rotating disc (24) is sleeved with a track (25), the inner wall of the side away from the rotating disc (24) of the track (25) is sleeved with a second rotating disc (26), the bottom of the second rotating disc (26) is fixedly connected with a rotating disc motor (27), the bottom of the second rotating disc (26) is fixedly connected with the output end of the rotating disc motor (27), the rear side of the rotating disc motor (27) is fixedly connected with a rotating disc motor connecting block (28), and the outer wall of the rotating disc motor connecting block (28) is fixedly connected with the inner sides of the two L-shaped supporting plates (11).
Citation Information
Patent Citations
Defoaming device for producing water-based paint
CN213192612U