A defoaming device for preparing water-based acrylic emulsions

Abstract

This utility model discloses a defoaming device for preparing water-based acrylic emulsions, comprising a base plate, on which two mounting brackets are fixedly mounted. Each mounting bracket has a turntable rotatably connected to its adjacent side, and each turntable has a push rod fixedly mounted to its adjacent side. Lifting brackets are slidably fitted onto the outer sides of each push rod. U-shaped brackets are fixedly mounted at the top of each lifting bracket, and a mixing tank is positioned between the two U-shaped brackets. Multiple output ends on the two U-shaped brackets are fixedly mounted at the bottom of the mixing tank. Gears are fixedly mounted on the opposite side of each turntable. A bracket is fixedly mounted on the base plate at the rear of the two mounting brackets. This defoaming device for preparing water-based acrylic emulsions can accelerate the emulsion feeding speed, thereby further improving the defoaming efficiency. Simultaneously, it can defoam during the emulsion's descent by squeezing, puncturing, and filtering, thus greatly improving the defoaming effect of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of emulsion preparation technology, specifically to a defoaming device for preparing water-based acrylic emulsions. Background Technology

[0002] Waterborne acrylic emulsions are high molecular weight compounds formed by the emulsion polymerization of acrylic monomers. They have excellent corrosion resistance, weather resistance, water resistance, alkali resistance, good film-forming properties, and good color retention. They are also easy to formulate into coatings with good workability, are environmentally friendly, and safe to use. However, the production process of waterborne acrylic emulsions requires the mixing and stirring of various raw materials, resulting in a large number of air bubbles in the produced emulsion. To ensure production quality, a defoaming process is necessary.

[0003] A search revealed patent application CN202321369253.7, which discloses a defoaming device for preparing water-based acrylic emulsions, relating to the field of emulsion preparation technology. This device includes a mixing tank, a mixing assembly, and a filtering assembly. The mixing tank has an opening at the top, and a sealing plate is fixedly installed on the inner wall of the opening. This device can fully blend the emulsion during processing, increasing the production speed. Through the coordinated use of a fixed side plate, a filter hopper, an annular limiting plate, and a filter plate, the blended emulsion is filtered during discharge, removing air bubbles and preventing excessive bubbles from affecting the quality of the processed emulsion. This design also facilitates the removal and cleaning of the filter plate, preventing solid substances in the emulsion from clogging it.

[0004] However, this patent has its shortcomings. In actual use, the defoaming device for preparing water-based acrylic emulsions can only discharge the water-based acrylic emulsions by natural falling. Since the water-based acrylic emulsions have a certain viscosity, their natural falling speed is relatively slow, resulting in a long overall defoaming time and low defoaming efficiency. In addition, this patent can only filter bubbles through a filter plate, and the defoaming method is relatively simple, resulting in poor defoaming effect.

[0005] To address this, we propose a defoaming device for the preparation of waterborne acrylate emulsions. Utility Model Content

[0006] The purpose of this invention is to provide a defoaming device for preparing water-based acrylic emulsions, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a defoaming device for preparing water-based acrylic emulsions, comprising a base plate, on which two mounting brackets are fixedly mounted. Each of the two mounting brackets is rotatably connected to a turntable on one side close to each other. Each of the two turntables is fixedly mounted with a push rod on one side close to each other. A lifting frame is slidably sleeved on the outer side of each of the two push rods. A U-shaped frame is fixedly mounted at the top of each of the two lifting frames. A mixing tank is disposed between the two U-shaped frames. Multiple output ends on the two U-shaped frames are fixedly mounted on the mixing tank. At the bottom, gears are fixedly installed on both of the two turntables on opposite sides. A bracket is fixedly installed on the base plate at the rear of the two mounting brackets. A transmission rod is rotatably connected inside the bracket. Two toothed rings are fixedly sleeved on the outside of the transmission rod. Each toothed ring is connected to the gear through a toothed belt. A defoaming seat is fixedly installed between the two mounting brackets at the lower part of the mixing tank. A filter screen is fixedly installed inside the defoaming seat. Multiple bubble-breaking rods are fixedly installed above the filter screen inside the defoaming seat. Multiple thorns are fixedly installed on the outside of each bubble-breaking rod.

[0008] Optionally, each of the lifting frames is fixedly equipped with a sliding component at its front and rear ends, and a guide rod is fixedly installed on the base plate at the front and rear of each lifting frame. Multiple sliding components are slidably sleeved in the corresponding guide rods, and the lifting frames can be limited by the guide rods and sliding components.

[0009] Optionally, a discharge pipe is fixedly installed at the bottom of the mixing tank, and an electric shut-off valve is fixedly installed inside the discharge pipe to facilitate the discharge of the mixed water-based acrylic emulsion.

[0010] Optionally, a sleeve is fixedly installed at the top of the defoaming seat, and the discharge pipe is slidably connected inside the sleeve, so that the outflowing emulsion can be easily transported through the sleeve.

[0011] Optionally, a motor is fixedly installed on the right side of the bracket, and the output end of the motor is fixedly installed on the transmission rod. The motor drives the transmission rod to rotate, which is beneficial to the use of this equipment.

[0012] Optionally, a stirring mechanism is rotatably connected inside the mixing tank, and a feed pipe is fixedly installed at the top of the mixing tank on the left side of the stirring mechanism, so that the mixing raw materials can be easily added through the feed pipe.

[0013] Optionally, a control host is fixedly installed on the right side of the mounting bracket on the base plate, which facilitates the control of the equipment.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Through the coordinated operation of the turntable, U-shaped frame, push rod, lifting frame, motor, transmission rod, toothed ring, toothed belt, gear, guide rod, sliding parts, bubble-breaking rod, thorns, and filter screen, the emulsion feeding speed can be accelerated, thereby further improving the defoaming efficiency. At the same time, defoaming can be carried out by squeezing, puncturing, and filtering during the emulsion falling process, thus greatly improving the defoaming effect of this equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a defoaming device for preparing an aqueous acrylic emulsion according to the present invention.

[0017] Figure 2 This is a cross-sectional view of a defoaming device for preparing an aqueous acrylic emulsion according to the present invention.

[0018] Figure 3 This is a cross-sectional view of the guide frame in the defoaming device for preparing an aqueous acrylic emulsion according to this utility model.

[0019] Figure 4 This invention relates to a defoaming device for preparing water-based acrylic emulsions. Figure 2 A magnified view of A in the middle.

[0020] In the diagram: 1. Base plate; 2. Mounting frame; 3. Mixing tank; 4. Defoamer seat; 5. Control unit; 6. Bracket; 7. Turntable; 8. U-shaped frame; 9. Push rod; 10. Lifting frame; 11. Sleeve; 12. Discharge pipe; 13. Motor; 14. Transmission rod; 15. Gear ring; 16. Gear belt; 17. Gear; 18. Guide rod; 19. Sliding component; 20. Bubble-breaking rod; 21. Spike; 22. Filter screen. 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 Figures 1 to 4This utility model provides a defoaming device for preparing water-based acrylic emulsions, including a base plate 1. Two mounting brackets 2 are fixedly installed on the base plate 1. A turntable 7 is rotatably connected to one side of each mounting bracket 2, and a push rod 9 is fixedly installed on one side of each turntable 7. A lifting frame 10 is slidably sleeved on the outer side of each push rod 9. A U-shaped frame 8 is fixedly installed at the top of each lifting frame 10. A mixing tank 3 is arranged between the two U-shaped frames 8. Multiple output ends on the two U-shaped frames 8 are fixedly installed at the bottom of the mixing tank 3. The two turntables 7 are spaced apart from each other. Gears 17 are fixedly installed on both sides. A bracket 6 is fixedly installed on the base plate 1 at the rear of the two mounting brackets 2. A transmission rod 14 is rotatably connected inside the bracket 6. Two toothed rings 15 are fixedly sleeved on the outside of the transmission rod 14. Each toothed ring 15 and gear 17 are connected by a toothed belt 16. A defoaming seat 4 is fixedly installed between the two mounting brackets at the lower part of the mixing tank 3. A filter screen 22 is fixedly installed inside the defoaming seat 4. Multiple bubble-breaking rods 20 are fixedly installed above the filter screen 22 inside the defoaming seat 4. Multiple spikes 21 are fixedly installed on the outside of each bubble-breaking rod 20.

[0023] Each lifting frame 10 has a sliding component 19 fixedly installed at its front and rear ends. Guide rods 18 are fixedly installed on the base plate 1 at the front and rear of each lifting frame 10. Multiple sliding components 19 are slidably fitted into the corresponding guide rods 18. The guide rods 18 and sliding components 19 can limit the movement of the lifting frame 10. A discharge pipe 12 is fixedly installed at the bottom of the mixing tank 3. An electric shut-off valve is fixedly installed inside the discharge pipe 12. The discharge pipe 12 facilitates the discharge of the mixed water-based acrylic emulsion. A sleeve 11 is fixedly installed at the top of the foam seat 4. The discharge pipe 12 slides... The emulsion is movably connected inside the sleeve 11, which facilitates the delivery of the outflowing emulsion. A motor 13 is fixedly installed on the right side of the bracket 6, and the output end of the motor 13 is fixedly installed on the transmission rod 14. The motor 13 drives the transmission rod 14 to rotate, which is beneficial to the use of this equipment. A stirring mechanism is rotatably connected inside the mixing tank 3. A feed pipe is fixedly installed on the top of the mixing tank 3 at the left side of the stirring mechanism, which facilitates the addition of mixing raw materials. A control host 5 is fixedly installed on the bottom plate 1 at the right side of the mounting frame 2, which facilitates the control of this equipment.

[0024] Working principle: The stirring mechanism in this patent is identical to the mixing components in the prior art. During use, after the water-based acrylic emulsion is well mixed, the receiving container is placed on the base plate 1 below the defoaming seat 4. The discharge switch is opened, at which point the electric shut-off valve opens. Simultaneously, the motor 13 drives the transmission rod 14, gear ring 15, and gear 17 to rotate. The gear 17 drives the turntable 7 to rotate, causing the two push rods 9 to rotate circumferentially on the turntable 7. The push rods 9 drive the lifting frame 10 and U-shaped frame 8 to slide up and down, thus causing the mixing tank 3 to sway up and down between the two mounting frames 2, allowing the well-mixed water-based acrylic emulsion to be properly stirred. The acrylic emulsion can quickly fall into the defoaming seat 4 through the discharge pipe 12, improving the defoaming efficiency. The water-based acrylic emulsion is squeezed between multiple bubble-breaking rods 20 and punctured by multiple spikes 21, thereby breaking the bubbles in the emulsion. After being filtered by the filter screen 22, it flows out. This defoaming device for preparing water-based acrylic emulsion is easy to use. The above components can speed up the feeding speed of the emulsion, thereby further improving the defoaming efficiency. At the same time, it can defoam by squeezing, puncturing and filtering during the emulsion falling, thereby greatly improving the defoaming effect of this equipment.

[0025] 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 preparing aqueous acrylic emulsions, characterized in that, Includes a base plate (1), on which two mounting brackets (2) are fixedly installed. Each of the two mounting brackets (2) is rotatably connected to a turntable (7) on one side close to each other. Each of the two turntables (7) is fixedly installed with a push rod (9) on one side close to each other. A lifting frame (10) is slidably fitted on the outer side of each of the two push rods (9). A U-shaped frame (8) is fixedly installed at the top of each of the two lifting frames (10). A mixing tank (3) is arranged between the two U-shaped frames (8). Multiple output ends on the two U-shaped frames (8) are fixedly installed at the bottom of the mixing tank (3). Gears (17) are fixedly installed on the side of each of the two turntables (7) furthest from each other. The base plate... (1) A bracket (6) is fixedly installed at the rear of the two mounting brackets (2). A transmission rod (14) is rotatably connected inside the bracket (6). Two toothed rings (15) are fixedly sleeved on the outside of the transmission rod (14). Each toothed ring (15) and gear (17) are meshed and connected by a toothed belt (16). A defoaming seat (4) is fixedly installed between the two mounting brackets (2) at the lower part of the mixing tank (3). A filter screen (22) is fixedly installed inside the defoaming seat (4). Multiple bubble-breaking rods (20) are fixedly installed on the upper part of the filter screen (22) inside the defoaming seat (4). Multiple thorns (21) are fixedly installed on the outside of each bubble-breaking rod (20).

2. The defoaming device for preparing aqueous acrylic emulsions according to claim 1, characterized in that, Each of the lifting frames (10) has a sliding component (19) fixedly installed at its front and rear ends. Guide rods (18) are fixedly installed on the base plate (1) at the front and rear of each lifting frame (10). Multiple sliding components (19) are respectively slidably sleeved in the corresponding guide rods (18).

3. The defoaming device for preparing aqueous acrylic emulsions according to claim 1, characterized in that, The bottom of the mixing tank (3) is fixedly installed with a discharge pipe (12), and an electric shut-off valve is fixedly installed inside the discharge pipe (12).

4. The defoaming device for preparing aqueous acrylic emulsions according to claim 3, characterized in that, The top of the bubble removal seat (4) is fixedly installed with a sleeve (11), and the discharge pipe (12) is slidably connected inside the sleeve (11).

5. The defoaming device for preparing aqueous acrylic emulsions according to claim 1, characterized in that, A motor (13) is fixedly installed on the right side of the bracket (6), and the output end of the motor (13) is fixedly installed on the transmission rod (14).

6. The defoaming device for preparing aqueous acrylic emulsions according to claim 1, characterized in that, The mixing tank (3) is rotatably connected to a stirring mechanism, and a feed pipe is fixedly installed at the top of the mixing tank (3) on the left side of the stirring mechanism.

7. The defoaming device for preparing aqueous acrylate emulsions according to claim 1, characterized in that, The control host (5) is fixedly installed on the right side of the mounting bracket (2) on the base plate (1).

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