Mixing device for carboxylic butadiene-styrene latex production

Abstract

The utility model relates to the technical field of styrene-butadiene latex production, in particular to a mixing device for carboxylic styrene-butadiene latex production, which comprises a mixing barrel, a stirring blanking pipe, a mounting plate, a servo motor, a transmission gear set, a funnel and an electric valve, the mounting plate is fixedly connected to the side wall of the mixing barrel, the servo motor is fixed on the mounting plate, and the transmission gear set is fixed on the transmission gear set. The funnel is rotationally connected to the upper portion of the stirring discharging pipe, an electric valve is arranged at the bottom of the funnel, and the servo motor drives the funnel through the transmission gear set. The hopper for rotatably receiving materials for primary mixing is arranged, so that carboxylic butadiene-styrene latex raw materials can be primarily mixed, meanwhile, the hopper is continuously knocked with the assistance of the vibration mechanism, the situation that the production raw materials adhere to the inner wall of the hopper is avoided, and the full mixing degree and the passing rate of the production raw materials are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of styrene butadiene latex production, in particular to a mixing device for the production of carboxylated styrene butadiene latex. Background Art

[0002] Carboxylated styrene-butadiene latex is a copolymer produced through emulsion polymerization of butadiene, styrene, a small amount of carboxylic acid, and other additives. It is a milky white aqueous dispersion with a bluish-purple sheen. It exhibits high adhesion and film strength, excellent mechanical and chemical stability, excellent fluidity and storage stability, a high filler content, and minimal residual benzene monomer, making it an environmentally friendly product.

[0003] Existing small and medium-sized carboxylated styrene butadiene latex mixing devices use pipelines to transport materials during the mixing process. During transportation, it is easy to generate residual materials in the pipelines. At the same time, since the pipelines are fixed, uneven mixing will occur during the mixing process. Utility Model Content

[0004] In order to overcome the shortcomings of the existing carboxylated styrene butadiene latex production method of transporting materials through fixed pipelines, which easily causes material accumulation or uneven mixing, the technical problem to be solved is to provide a mixing device for the production of carboxylated styrene butadiene latex.

[0005] The technical solution of the utility model is: a mixing device for the production of carboxylated styrene butadiene latex, comprising a mixing barrel, a stirring and discharging pipe, a mounting plate, a servo motor, a transmission gear set, a funnel and an electric valve. The mounting plate is fixedly connected to the side wall of the mixing barrel, the servo motor is fixed to the mounting plate, the funnel is rotatably connected to the upper part of the stirring and discharging pipe, an electric valve is arranged at the bottom of the funnel, and the servo motor drives the funnel through the transmission gear set.

[0006] As a preferred technical solution of the present invention, the transmission gear set comprises a first gear and a second gear meshing with each other, the first gear is fixed to the output shaft of the servo motor, and the second gear is fixed to the upper part of the funnel.

[0007] As an optimal technical solution of the utility model, it also includes a sealing cover. The upper part of the mixing barrel is provided with a sealing cover, and the sealing cover is provided with a discharge port.

[0008] As an optimal technical solution of the utility model, it also includes a vibration mechanism, which includes a fixed frame, a swing frame, a torsion spring and a vibrating member. The fixed frame is fixed to the inner wall of the mixing barrel, the swing frame is rotatably connected to the fixed frame and a torsion spring is connected between the two. A vibrating member is provided at the lower end of the swing frame, and the vibrating member is in friction contact with the outer wall of the funnel. The fixed frame is fixed to a limit plate, and the limit plate limits the rotation angle of the swing frame.

[0009] As a preferred technical solution of the present invention, the vibrating member is a roller with a protrusion.

[0010] As a preferred technical solution of the present invention, a protective shell is also included. The protective shell is arranged outside the transmission gear set, specifically outside the first gear.

[0011] Beneficial effect: A rotating funnel is provided for receiving materials for initial mixing, so that the carboxylated styrene butadiene rubber latex raw materials can be initially mixed. At the same time, a vibration mechanism is used to continuously knock the funnel, thereby avoiding the production raw materials from sticking to the inner wall of the funnel, thereby improving the degree of full mixing and the pass rate of the production raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a three-dimensional structural diagram of the servo motor and transmission gear set of the utility model.

[0014] Figure 3 It is a three-dimensional structural diagram of the funnel and electric valve of the utility model.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing frame and the torsion spring of the utility model.

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting plate and the protrusion of the utility model.

[0017] Marked in the figure: 1-mixing barrel, 2-stirring discharge pipe, 3-mounting plate, 4-servo motor, 5-first gear, 6-second gear, 7-funnel, 8-electric valve, 9-sealing cover, 11-discharge port, 12-fixed frame, 13-swing frame, 14-torsion spring, 15-roller, 16-bump, 17-limiting plate, 18-protective shell. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0019] Embodiment: A mixing device for producing carboxylated styrene butadiene latex, such as Figure 1-Figure 5As shown, including the mixing barrel 1, the mixing barrel 1 inner cavity lower part is provided with stirring discharge pipe 2, the mixing barrel 1 upper portion is provided with sealing cover 9, sealing cover 9 is provided with discharge port 11, still including mounting plate 3, servo motor 4, transmission gear set, hopper 7 and electric valve 8, mounting plate 3 is fixedly connected in the mixing barrel 1 side wall, servo motor 4 is fixed on mounting plate 3, hopper 7 is rotatably connected on the upper portion of stirring discharge pipe 2, hopper 7 bottom is provided with electric valve 8, servo motor 4 is driven to hopper 7 through transmission gear set, transmission gear set is the first gear 5 and the second gear 6 that are engaged with each other, the first gear 5 is fixedly connected in the output shaft of servo motor 4, the second gear 6 is fixedly connected on the upper portion of hopper 7.

[0020] As shown in Figure 4 and Figure 5 Still including vibration mechanism, vibration mechanism includes fixed frame 12, swing frame 13, torsional spring 14 and vibrating piece, fixed frame 12 is fixedly connected to the inner wall of mixing barrel 1, swing frame 13 is rotatably connected in fixed frame 12 and is connected with torsional spring 14 between the two, swing frame 13 lower end is provided with vibrating piece, vibrating piece is the roller 15 provided with protrusion 16, vibrating piece is in frictional contact with the outer wall of hopper 7, fixed frame 12 is fixedly connected with limit plate 17, limit plate 17 limits the rotation angle of swing frame 13.

[0021] As shown in Figure 1 and Figure 2 Still including protective shell 18, protective shell 18 is arranged outside transmission gear set, specifically located outside the first gear 5.

[0022] Working principle: the carboxyl styrene latex production raw materials are introduced into the hopper 7 from the discharge port 11, during which the servo motor 4 is started to drive the hopper 7 to rotate continuously through the transmission gear set, the production raw materials are uniformly introduced into the hopper 7 for preliminary mixing, the hopper 7 is in continuous contact with the roller 15 during rotation, the roller 15 and the swing frame 13 are reciprocatingly swung under the action of the torsional spring 14, in combination with the protrusions 16 arranged on the surface of the roller 15, the side wall of the hopper 7 can be simulated to be knocked, so as to achieve the effect of vibrating the inner wall of the hopper 7, to prevent the production raw materials from adhering to or adhering to the inner wall of the hopper 7, and finally the production raw materials after preliminary mixing are discharged through the electric valve 8, and are stirred and discharged through the stirring discharge pipe 2, the built-in stirrer of the stirring discharge pipe 2 can fully stir and mix the production raw materials.

[0023] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, within the knowledge range possessed by the person skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A mixing device for producing carboxylated styrene-butadiene latex, characterized in that: The mixing barrel (1) includes a mixing barrel (1) having a built-in stirring and discharging pipe (2); It also includes a mounting plate (3), wherein the mounting plate (3) is fixed to the side wall of the mixing barrel (1); A servo motor (4), wherein the servo motor (4) is fixed on the mounting plate (3); A funnel (7), wherein the funnel (7) is rotatably connected to the upper portion of the stirring and discharging pipe (2), and an electric valve (8) is provided at the bottom of the funnel (7); The servo motor (4) drives the funnel (7) through the transmission gear set, and the servo motor (4) drives the funnel (7) to rotate through the transmission gear set, and the funnel (7) evenly receives the production raw materials.

2. A mixing device for producing carboxylated styrene-butadiene latex according to claim 1, characterized in that: The transmission gear set comprises a first gear (5) and a second gear (6) meshing with each other, the first gear (5) being fixedly connected to the output shaft of the servo motor (4), and the second gear (6) being fixedly connected to the upper part of the funnel (7).

3. A mixing device for producing carboxylated styrene-butadiene latex according to claim 2, characterized in that: The mixing barrel (1) further comprises a sealing cover (9). The upper part of the mixing barrel (1) is provided with the sealing cover (9), and the sealing cover (9) is provided with a discharge port (11).

4. A mixing device for producing carboxylated styrene-butadiene latex according to claim 3, characterized in that: Also includes a vibration mechanism; The vibration mechanism includes a fixing frame (12), and the fixing frame (12) is fixed to the inner wall of the mixing barrel (1); A swing frame (13), wherein the swing frame (13) is rotatably connected to the fixed frame (12) and a torsion spring (14) is connected between the two; A vibrating member is provided at the lower end of the swing frame (13), and the vibrating member is in frictional contact with the outer wall of the funnel (7); A limit plate (17) is fixed to the fixed frame (12), and the limit plate (17) limits the rotation angle of the swing frame (13).

5. A mixing device for producing carboxylated styrene-butadiene latex according to claim 4, characterized in that: The vibrating member is a roller (15) provided with a convex block (16).

6. A mixing device for producing carboxylated styrene-butadiene latex according to claim 5, characterized in that: It also includes a protective shell (18), which is arranged outside the transmission gear set, specifically outside the first gear (5).

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