Stirring device for production of redispersible latex powder

Abstract

The utility model discloses a stirring device for redispersible latex powder production, which belongs to the field of latex powder production and comprises a stirring barrel, a stirring mechanism is arranged in the stirring barrel and comprises a rotating shaft, the outer wall of the rotating shaft is connected with a first stirring plate, and a transverse plate is connected between the inner walls of the stirring barrel. An elastic connecting assembly is arranged between the transverse plate and the rotating shaft, a mounting sleeve is connected to the outer wall of the rotating shaft through a spline, a mounting frame is connected to the outer wall of the mounting sleeve, a second stirring plate is connected to the mounting frame, the first stirring plate and the second stirring plate are arranged in a splayed shape with a large opening facing the rotating shaft, and a rotating assembly and a power assembly are arranged at the top of the stirring barrel. The power assembly drives the rotating shaft to drive the first stirring plate to move downwards by a certain height, then the rotating shaft loses driving, the rotating shaft drives the first stirring plate to rapidly move upwards under the action of the elastic force of the spring, materials close to the inner wall of the stirring barrel are extruded towards the axis direction of the stirring barrel, convection of the materials is generated, and heating is more uniform.

Description

Technical Field

[0001] The utility model relates to the field of latex powder production, in particular to a stirring device for producing redispersible latex powder. Background Art

[0002] Redispersible polymer powder products are water-soluble redispersible powders, which are classified into ethylene / vinyl acetate copolymers, vinyl acetate / versatate copolymers, acrylic acid copolymers, etc. The powder adhesive is made after spray drying, and polyvinyl alcohol is used as a protective colloid. This powder can be quickly redispersed into an emulsion after contact with water. Redispersible polymer powder has high bonding ability and unique properties, such as water resistance, workability and thermal insulation.

[0003] After searching, the Chinese patent publication number CN213050278U was found, which discloses a production device for dispersible latex powder, including a box body, a motor fixedly connected to the upper end of the box body, a second connecting pipe and an injection pipe are provided on the outside of the motor, and water is injected into the interior of the box body by a water pump pressurization. The injection pipe is used to inject raw materials, and the raw materials are heated by a heating plate. The motor drives the rotating shaft to rotate the stirring plate to mix the raw materials evenly, which significantly improves the production efficiency of the latex powder.

[0004] However, the heating device in the prior art is usually arranged on the inner wall of the box, which causes the temperature of the material near the inner wall of the box to be relatively high and the heating to be uneven. Utility Model Content

[0005] The purpose of this utility model is to provide a stirring device for producing redispersible latex powder in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] The mixing device of the mixing drum is fixedly connected with the brackets, the top of the mixing drum is fixedly connected with the feeding pipe, the wall of the mixing drum is provided with a heating assembly, and the mixing drum is provided with a mixing mechanism. The mixing mechanism comprises a rotating shaft rotatably connected to the top wall of the mixing drum, the outer wall of the rotating shaft is fixedly connected with multiple groups of circumferentially arranged first mixing plates, the inner wall of the mixing drum is fixedly connected with a cross plate, an elastic connection assembly is provided between the cross plate and the rotating shaft, the outer wall of the rotating shaft is connected with a mounting sleeve through a spline, the outer wall of the mounting sleeve is fixedly connected with several circumferentially arranged mounting brackets, the mounting bracket is fixedly connected with a second mixing plate located above the first mixing plate, the first mixing plate and the second mixing plate are arranged in an eight-shaped shape with a large mouth facing the rotating shaft, the mounting bracket is slidably connected to the inner top wall of the mixing drum through a limiting assembly, and a rotating assembly and a power assembly are provided on the top of the mixing drum, the rotating assembly is used to drive the rotating shaft to rotate, and the power assembly is used to drive the rotating shaft to move up and down.

[0008] Preferably, the elastic connection assembly includes a sleeve fixedly connected to the top of the horizontal plate, a limit block is connected to the sleeve for sliding up and down, a spring is connected between the limit block and the bottom wall of the sleeve, a mounting hole is opened on the top of the sleeve, and the rotating shaft extends into the sleeve through the mounting hole and is rotatably connected to the top of the limit block.

[0009] Preferably, the limiting assembly includes a slider fixedly connected to the top of the mounting frame, an annular groove is provided on the inner top wall of the mixing drum, the cross section of the annular groove is T-shaped, and the slider is slidably connected in the annular groove.

[0010] Preferably, the rotating assembly includes a gear column fixedly connected to the outer wall of the rotating shaft, the top of the mixing drum is fixedly connected to a rotating motor, the output end of the rotating motor is fixedly connected to a gear, and the gear is meshed with the gear column.

[0011] Preferably, the power assembly includes two vertical plates fixedly connected to the top of the mixing drum, the two vertical plates are arranged front and back, a top plate is slidably connected between the two vertical plates, the rotating shaft is rotatably connected to the bottom of the top plate, the front side of the front vertical plate is fixedly connected to a stepper motor, the output end of the stepper motor is fixedly connected to a cam, the cam is rotatably connected between the two vertical plates, and the cam is located above the top plate.

[0012] Preferably, the mounting bracket is L-shaped, and the mounting bracket abuts against the inner wall of the mixing drum.

[0013] The beneficial effect is that the second stirring plate and the first stirring plate rotate synchronously, and the power component drives the rotating shaft to rotate and drive the first stirring plate to move downward to a certain height, the spring accumulates force, and then the rotating shaft is released, so that the rotating shaft drives the first stirring plate to move upward rapidly under the action of the spring force, squeezing the material between the first stirring plate and the second stirring plate, so that the material close to the inner wall of the mixing drum is squeezed toward the axis of the mixing drum, causing convection of the material. At the same time, the material near the axis of the mixing drum is squeezed to other places, causing turbulence of the material in the mixing drum and stirring more evenly.

[0014] Additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a stirring device for producing redispersible latex powder according to the present invention;

[0017] Figure 2 This is a front view of a stirring device for producing redispersible latex powder according to the present invention;

[0018] Figure 3 This is a front view of the internal structure of a mixing drum of a stirring device for producing redispersible latex powder according to the present invention;

[0019] Figure 4 The utility model is a stirring device for producing redispersible latex powder. Figure 3 A magnified view of point A;

[0020] Figure 5 This is a schematic diagram of a power component of a stirring device for producing redispersible latex powder described in the present invention.

[0021] The accompanying drawings are described as follows: 1. Bracket; 2. Mixing drum; 201. Feed pipe; 301. Rotating shaft; 302. First stirring plate; 303. Horizontal plate; 304. Mounting sleeve; 305. Mounting frame; 306. Second stirring plate; 307. Slider; 401. Gear column; 402. Rotating motor; 403. Gear; 501. Vertical plate; 502. Top plate; 503. Stepping motor; 504. Cam; 601. Sleeve; 602. Limit block; 603. Spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figure 1-Figure 5 As shown, a stirring device for producing redispersible latex powder includes a bracket 1, a stirring drum 2 is fixedly connected between the brackets 1, a feed pipe 201 is fixedly connected to the top of the stirring drum 2, and a heating component is provided inside the wall of the stirring drum 2. The heating component is an electric heating wire or an electric heating rod, and the material in the stirring drum 2 is heated by the heating component.

[0026] A stirring mechanism is provided in the mixing drum 2, which includes a rotating shaft 301 rotatably connected to the top wall of the mixing drum 2, and the rotating shaft 301 slides up and down along the mixing drum 2. The outer wall of the rotating shaft 301 is fixedly connected to a plurality of circumferentially arranged first stirring plates 302, and the first stirring plates 302 are located in the mixing drum 2. A horizontal plate 303 located below the rotating shaft 301 is fixedly connected between the inner walls of the mixing drum 2, and an elastic connection component is provided between the horizontal plate 303 and the rotating shaft 301. The elastic connection component includes a sleeve 601 fixedly connected to the top of the horizontal plate 303, and a limit block 602 is connected to the sleeve 601 for sliding up and down. A spring 603 is connected between the limit block 602 and the inner bottom wall of the sleeve 601. A mounting hole is provided at the top of the sleeve 601, and the rotating shaft 301 extends into the sleeve 601 through the mounting hole and is rotatably connected to the top of the limit block 602. The end of the rotating shaft 301 is connected by the sleeve 601 and the limit block 602 to improve stability.

[0027] The outer wall of the rotating shaft 301 is connected to the mounting sleeve 304 through a spline. The outer wall of the mounting sleeve 304 is fixedly connected to a plurality of circumferentially arranged mounting brackets 305. The mounting brackets 305 are L-shaped. The side walls of the mounting brackets 305 abut against the inner wall of the mixing drum 2. When the rotating shaft 301 drives the mounting sleeve 304 and the mounting bracket 305 to rotate, the mounting bracket 305 can promptly scrape off the material adhering to the inner wall of the mixing drum 2. The mounting bracket 305 is fixedly connected to the second stirring plate located above the first stirring plate 302. Plate 306, the first stirring plate 302 and the second stirring plate 306 are arranged in an eight-shaped shape with the wide mouth facing the rotating shaft 301, and the mounting bracket 305 is slidably connected to the inner top wall of the mixing drum 2 through a limiting component. The limiting component includes a slider 307 fixedly connected to the top of the mounting bracket 305. The inner top wall of the mixing drum 2 is provided with an annular groove, and the cross section of the annular groove is T-shaped. The slider 307 is slidably connected in the annular groove. The height of the mounting bracket 305 is limited by the cooperation of the annular groove and the slider 307.

[0028] A rotating assembly is provided on the top of the mixing drum 2, which is used to drive the rotating shaft 301 to rotate. The rotating assembly includes a gear column 401 fixedly connected to the outer wall of the rotating shaft 301. The top of the mixing drum 2 is bolted to a rotating motor 402. The output end of the rotating motor 402 is fixedly connected to a gear 403, which engages with the gear column 401. When the rotating motor 402 is started, the rotating motor 402 drives the gear 403 to rotate, and the gear 403 engages with the gear column 401, thereby driving the gear column 401 to drive the rotating shaft 301 to rotate.

[0029] A power assembly is provided on the top of the mixing drum 2, and the power assembly is used to drive the rotating shaft 301 to move up and down. The power assembly includes two vertical plates 501 connected to the top of the mixing drum 2 by bolts. The two vertical plates 501 are arranged front and back. A top plate 502 is connected to the top and bottom of the two vertical plates 501 for sliding up and down. The rotating shaft 301 is rotatably connected to the bottom of the top plate 502. A stepper motor 503 is connected to the front side of the front vertical plate 501 by bolts. A cam 504 is fixedly connected to the output end of the stepper motor 503. The cam 504 The rotation is connected between the two vertical plates 501, and the cam 504 is located above the top plate 502. The stepper motor 503 is started, and the stepper motor 503 drives the cam 504 to rotate. After the tip of the cam 504 abuts against the top plate 502, the cam 504 will drive the top plate 502 to move downward, and the top plate 502 drives the rotating shaft 301 to drive the limit block 602 to move downward. When the tip of the cam 504 rotates away, the rotating shaft 301 drives the top plate 502 to move upward quickly and reset under the action of the elastic force of the spring 603.

[0030] Working principle: When in use, the raw materials for making redispersible latex powder are added into the mixing drum 2 through the feeding tube 201, and the rotating motor 402 is started. The rotating motor 402 drives the gear 403 to rotate, and the gear 403 is engaged with the gear column 401, thereby driving the gear column 401 to drive the rotating shaft 301 to rotate, and the rotating shaft 301 drives the first stirring plate 302 to rotate. While the rotating shaft 301 rotates, it also drives the mounting sleeve 304 to drive the mounting frame 305 and the second stirring plate 306 to rotate synchronously. When the second stirring plate 306 and the first stirring plate 302 rotate synchronously, the stepping motor 503 is started, and the stepping motor 503 drives the cam 504 to rotate. After the tip of the cam 504 abuts against the top plate 502, the cam 504 will drive The movable top plate 502 moves downward, and the top plate 502 drives the rotating shaft 301 and the first stirring plate 302 to move downward. While the rotating shaft 301 moves downward, it drives the limit block 602 to slide downward along the sleeve 601, and the spring 603 is compressed and stored. When the tip of the cam 504 turns away, the rotating shaft 301 drives the first stirring plate 302 to move upward rapidly under the action of the elastic force of the spring 603, and squeezes the material between the first stirring plate 302 and the second stirring plate 306, so that the material close to the inner wall of the mixing drum 2 is squeezed toward the axis of the mixing drum 2, causing convection of the material. At the same time, the material near the axis of the mixing drum 2 is squeezed to other places, causing turbulence of the material in the mixing drum 2, and heating and stirring are more uniform.

[0031] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stirring device for producing redispersible latex powder, comprising a bracket (1), a stirring drum (2) fixedly connected between the brackets (1), a feeding pipe (201) fixedly connected to the top of the stirring drum (2), and a heating component provided in the wall of the stirring drum (2), characterized in that: The mixing drum (2) is provided with a stirring mechanism, the stirring mechanism comprising a rotating shaft (301) rotatably connected to the top wall of the mixing drum (2), the outer wall of the rotating shaft (301) being fixedly connected to a plurality of circumferentially arranged first stirring plates (302), a transverse plate (303) being fixedly connected between the inner walls of the mixing drum (2), an elastic connection assembly being provided between the transverse plate (303) and the rotating shaft (301), the outer wall of the rotating shaft (301) being connected to a mounting sleeve (304) via a spline, the outer wall of the mounting sleeve (304) being fixedly connected to a plurality of circumferentially arranged mounting brackets ( 305), a second stirring plate (306) located above the first stirring plate (302) is fixedly connected to the mounting frame (305), the first stirring plate (302) and the second stirring plate (306) are arranged in an eight-shaped shape with the large opening facing the rotating shaft (301), the mounting frame (305) is slidably connected to the inner top wall of the mixing drum (2) through a limiting assembly, and a rotating assembly and a power assembly are arranged on the top of the mixing drum (2), the rotating assembly is used to drive the rotating shaft (301) to rotate, and the power assembly is used to drive the rotating shaft (301) to move up and down.

2. A stirring device for producing redispersible latex powder according to claim 1, characterized in that: The elastic connection assembly comprises a sleeve (601) fixedly connected to the top of the transverse plate (303); a limit block (602) is slidably connected up and down in the sleeve (601); a spring (603) is connected between the limit block (602) and the inner bottom wall of the sleeve (601); a mounting hole is provided at the top of the sleeve (601); the rotating shaft (301) passes through the mounting hole and extends into the sleeve (601) and is rotatably connected to the top of the limit block (602).

3. The stirring device for producing redispersible latex powder according to claim 1, characterized in that: The limiting assembly includes a slider (307) fixedly connected to the top of the mounting frame (305); an annular groove is provided on the inner top wall of the mixing drum (2); the cross section of the annular groove is T-shaped; and the slider (307) is slidably connected in the annular groove.

4. The stirring device for producing redispersible latex powder according to claim 1, characterized in that: The rotating assembly comprises a tooth column (401) fixedly connected to the outer wall of the rotating shaft (301); a rotating motor (402) is fixedly connected to the top of the mixing drum (2); a gear (403) is fixedly connected to the output end of the rotating motor (402); and the gear (403) is meshed with the tooth column (401).

5. The stirring device for producing redispersible latex powder according to claim 1, characterized in that: The power assembly comprises two vertical plates (501) fixedly connected to the top of the mixing drum (2), the two vertical plates (501) are arranged front and back, a top plate (502) is slidably connected between the two vertical plates (501), the rotating shaft (301) is rotatably connected to the bottom of the top plate (502), a stepper motor (503) is fixedly connected to the front side of the front vertical plate (501), an output end of the stepper motor (503) is fixedly connected to a cam (504), the cam (504) is rotatably connected between the two vertical plates (501), and the cam (504) is located above the top plate (502).

6. The stirring device for producing redispersible latex powder according to claim 1, characterized in that: The mounting frame (305) is L-shaped, and the mounting frame (305) abuts against the inner wall of the mixing drum (2).

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