Mixing device for processing waterborne polyurethane emulsion

Abstract

The utility model discloses a mixing device for waterborne polyurethane emulsion processing, which relates to the technical field of waterborne polyurethane emulsion processing, and comprises a stirring box, a box cover is arranged at the top end of the stirring box, a motor is fixedly connected to the top end of the box cover, a connecting plate is fixedly connected to the output end of the motor, a transmission rod is fixedly connected to the bottom end of the connecting plate, and the transmission rod is fixedly connected to the bottom end of the stirring box. A cavity is formed in the transmission rod, an electric telescopic rod is arranged in the transmission rod, a connecting block is fixedly connected to the bottom end of the transmission rod, and a plurality of sets of triangular fan blades are symmetrically arranged on the surface of the connecting block at equal intervals. A driving part in the stirring mechanism is started to drive a plurality of structures on a transmission rod to rotate, triangular fan blades are uniformly distributed on a connecting block, the blade surface area is small, and vortexes can be formed at the bottom of the mixing barrel during high-speed rotation, so that mixed emulsion is diffused towards the inner wall of the mixing barrel from bottom to top; therefore, the purpose of accelerated mixing of various emulsions is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterborne polyurethane emulsion processing technical field, specifically to a kind of mixing device for waterborne polyurethane emulsion processing. BACKGROUND

[0002] The processing of waterborne polyurethane emulsion involves multiple steps, including prepolymerization, chain extension, emulsification, distillation and compounding, etc. In these processes, the mixing device plays a crucial role. The mixer is a machine used for mixing materials, usually composed of a horizontal rotating container and rotating vertical stirring blades. This design allows the molding material to be uniformly mixed during stirring. The characteristics of the mixing and batching system include uniform mixing, loose mixing, good formability, easy discharge, less remaining material, high production efficiency. However, this system also has some disadvantages, such as high heat generated during mixing, which can cause rapid wear of the auger and pot body. The mixing device for waterborne polyurethane emulsion processing plays a key role in the production process, ensuring the quality and performance of the final product through precise mixing and reaction control.

[0003] The mixing device for waterborne polyurethane emulsion processing in the prior art has the problem that when stirring waterborne polyurethane, due to the inherent viscosity of waterborne polyurethane, it is easy to adhere to the inner wall of the mixing tank and the surface of the stirring blade, which limits the flowability of the material in the tank. This adhesion phenomenon makes it difficult to fully stir and uniformly disperse the material in some areas during stirring, easily forming stirring blind spots and dead angles, resulting in uneven mixing. In addition, viscous materials increase the resistance of the stirring blade, reducing stirring efficiency, and even causing the stirring motor to bear the load, accelerating equipment wear and energy consumption, affecting the final quality of the emulsion. These problems not only lead to a decrease in the uniformity and stability of the emulsion, but also affect the quality of the product, increasing the difficulty and cost of subsequent processing. Therefore, how to solve the dispersion problem of viscous materials during stirring has become the key to improving the efficiency of the mixing device for waterborne polyurethane emulsion processing. SUMMARY

[0004] Therefore, the utility model aims to provide a mixing device for waterborne polyurethane emulsion processing to solve the technical problem of uneven mixing caused by the adhesion of viscous materials to the inner wall of the mixing tank and the surface of the stirring blade, which limits the flowability of the material in the tank.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of mixing device for water-based polyurethane emulsion processing, including stirring box, the top of the stirring box is provided with box cover, the top of the box cover is fixedly connected with motor, the output end of the motor is fixedly connected with connecting plate, the bottom of the connecting plate is fixedly connected with transmission rod, the transmission rod is internally provided with cavity, the transmission rod is internally provided with electric telescopic rod, the bottom of the transmission rod is fixedly connected with link block, the surface of the link block is symmetrically and equidistantly provided with multiple groups of triangular sector.

[0006] By adopting the above technical scheme, the driving components in the stirring mechanism are started to drive the multiple structures on the transmission rod to rotate. Since the triangular sectors are uniformly distributed on the link block and have small leaf area, when rotating at high speed, vortex is formed at the bottom of the mixing cylinder, so that the mixed emulsion diffuses upwards to the inner wall of the mixing cylinder, achieving the purpose of accelerating the mixing of multiple emulsions. At the same time, the wide stirring rod can deeply diffuse into the mixed emulsion to fully beat the colored emulsion structure, so that the color of the mixed emulsion presents a dispersed granular shape. During the process, the electric telescopic rod is started to utilize the flexible transmission between structures to continuously scale the stirring rod, ensuring that the mixed emulsion at the edge of the inner wall of the mixing cylinder can also be fully treated by the stirring rod.

[0007] Further, the bottom end of the electric telescopic rod is fixedly connected with multiple groups of first fixed seats symmetrically and equidistantly.

[0008] By adopting the above technical scheme, the first fixed seat is provided to achieve the effect of moving the link rod.

[0009] Further, the top end side of the link block is symmetrically and equidistantly provided with multiple groups of third fixed seats, and the third fixed seats are movably connected with stirring rods.

[0010] By adopting the above technical scheme, the third fixed seat achieves the effect of moving the stirring rod.

[0011] Further, the second fixed seat is movably connected with the end of the link rod.

[0012] By adopting the above technical scheme, the second fixed seat is provided to achieve the effect of fixing the stirring rod.

[0013] Further, the transmission rod is symmetrically and equidistantly provided with multiple groups of through grooves matched with the link rod, and the top of the box cover is provided with a feeding port.

[0014] By adopting the above technical scheme, the through groove is provided to achieve the effect of making the link rod swing greatly.

[0015] Further, the box cover top end is fixedly connected with a connecting sleeve, which is sleeved on the surface of the motor.

[0016] By adopting the above technical scheme, the connecting sleeve is arranged to fix the motor.

[0017] To sum up, the utility model mainly has the following beneficial effects: the utility model discloses a drive component in the stirring mechanism is started to drive multiple structures on the transmission rod to rotate, the triangular fan blade is evenly distributed on the link block, and the blade area is small, when high-speed rotation, vortex is formed at the bottom of the mixing cylinder, so that the mixed emulsion diffuses from bottom to top to the mixing cylinder inner wall, so that the mixed emulsion is accelerated to mix, at the same time, the width of the stirring rod is large, and the mixed emulsion can be deeply diffused to fully beat the colored emulsion structure, so that the color of the mixed emulsion presents a dispersed granular shape, the electric telescopic rod is started in the process, and flexible transmission between structures is utilized, so that the stirring rod continuously zooms in and out, and the mixed emulsion at the edge of the mixing cylinder inner wall can also be fully treated by the stirring rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structural schematic view of the utility model;

[0019] Figure 2 It is a partial structural schematic view of the utility model;

[0020] Figure 3 It is a partial structural bottom view of the utility model;

[0021] Figure 4 It is a local structural schematic view of the utility model.

[0022] In the drawing: 1, stirring box; 2, box cover; 3, motor; 4, connecting sleeve; 5, connecting plate; 6, transmission rod; 7, electric telescopic rod; 8, first fixed seat; 9, link rod; 10, stirring rod; 11, second fixed seat; 12, third fixed seat; 13, link block; 14, triangular fan blade; 15, through groove; 16, feed inlet. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. The embodiments described by referring to the drawings are exemplary and are used to explain the utility model, and cannot be understood as limiting the utility model.

[0024] The embodiments of the utility model will be described according to the overall structure of the utility model.

[0025] A kind of mixing device for processing water-based polyurethane emulsion, such as Figures 1-4As shown, including stirring box 1, stirring box 1 top end is provided with box cover 2, box cover 2 top end fixedly connected with motor 3, motor 3 output end fixedly connected with connecting plate 5, connecting plate 5 bottom end fixedly connected with transmission rod 6, transmission rod 6 inside is provided with cavity, transmission rod 6 inside is provided with electric telescopic rod 7, transmission rod 6 bottom end fixedly connected with link block 13, link block 13 surface symmetry equidistantly provided with multiple sets of triangular sector 14, specifically, when the emulsion is filled into stirring box 1 through feed inlet 16, start installing in the hole of connecting sleeve 4 motor 3, motor 3 through transmission rod 6 and link block 13 linkage, drive a group of triangular sector 14 and stirring rod 10 synchronous rotation;

[0026] At this time, a group of triangular sector 14 in stirring box 1 bottom high speed rotation, through the rotation motion produces strong liquid flow, makes emulsion flow from top to bottom, forms obvious center vortex effect, thereby makes emulsion realize rapid circulation flow in vertical direction, effectively speeds up the mutual mixing between various emulsion components, improves the uniformity of stirring.

[0027] Please refer to Figure 3 And Figure 4 , electric telescopic rod 7 bottom end surface symmetry equidistantly fixedly connected with multiple sets of first fixed seat 8, first fixed seat 8 movably connected with link rod 9, link block 13 top end side surface symmetry equidistantly provided with multiple sets of third fixed seat 12, third fixed seat 12 movably connected with stirring rod 10, stirring rod 10 middle segment is provided with second fixed seat 11, second fixed seat 11 and the end of link rod 9 movably connected, specifically, motor 3 drives electric telescopic rod 7 in transmission rod 6, electric telescopic rod 7 generates up and down reciprocating motion in transmission rod 6, through the movable connection characteristics between transmission rod 6 and link block 13 and stirring rod 10, this telescopic motion further promotes the reciprocating motion of stirring rod 10 in expansion and contraction in stirring box 1;

[0028] The up and down motion of transmission rod 6 cooperates with the rotation of stirring rod 10, so that stirring rod 10 can continuously adjust its working position in stirring box 1, expanding the coverage of stirring, especially in the middle and bottom areas of stirring box 1, which can effectively avoid the stirring blind area caused by material adhesion;

[0029] In addition, the telescopic motion trajectory of electric telescopic rod 7 is dragged by the traction rod, so that stirring rod 10 can change the direction and amplitude of stirring at different angles while expanding and contracting, and the superposition of multiple motions enables stirring rod 10 to produce three-dimensional stirring effect, which not only accelerates the diffusion and mixing of emulsion in the horizontal direction, but also promotes the full overturning and stirring of emulsion with high viscosity in stirring box 1, thereby significantly improving the uniformity of the overall stirring process.

[0030] Please refer to Figure 2The transmission rod 6 is symmetrically provided with a plurality of groups of through grooves on the side surface, which are matched with the connecting rod 9, the box cover 2 is provided with a feeding port 16 at the top end, and the through grooves 15 achieve the effect of large amplitude swing of the connecting rod 9.

[0031] Please refer to Figure 1 The connecting sleeve 4 is fixedly connected to the top end of the box cover 2 and is sleeved on the surface of the motor 3, and the connecting sleeve 4 achieves the effect of fixing the motor.

[0032] The working principle of the utility model is as follows: when the emulsion is filled into the stirring box 1 through the feeding port 16, the motor 3 installed in the hole of the connecting sleeve 4 is started, the motor 3 drives the connecting block 13 through the transmission rod 6, and drives a group of triangular leaves 14 and the stirring rod 10 to rotate synchronously.

[0033] At this time, a group of triangular leaves 14 rotate at high speed at the bottom of the stirring box 1, and strong liquid flow is generated through the rotating motion, so that the emulsion flows from top to bottom and forms obvious central vortex effect, so that the emulsion realizes rapid circulation flow in the vertical direction, effectively accelerates the mutual mixing between various emulsion components, and improves the uniformity of stirring.

[0034] At the same time, the motor 3 also drives the electric telescopic rod 7 in the transmission rod 6, the electric telescopic rod 7 generates up-down reciprocating telescopic motion in the transmission rod 6, and through the movable connection characteristics between the transmission rod 6, the connecting block 13 and the stirring rod 10, the telescopic motion further drives the stirring rod 10 to perform reciprocating motion of expansion and contraction in the stirring box 1.

[0035] The up-down motion of the transmission rod 6 cooperates with the rotation of the stirring rod 10, so that the stirring rod 10 can continuously adjust its working position in the stirring box 1, and the coverage of stirring is expanded, especially in the middle and bottom regions of the stirring box 1, which can effectively avoid the stirring blind area caused by material adhesion.

[0036] In addition, the telescopic motion trajectory of the electric telescopic rod 7 is dragged under the dragging action of the traction rod, so that the stirring rod 10 can change the stirring direction and amplitude along different angles while performing expansion and contraction motion, and the superposition of multiple motions makes the stirring rod 10 generate three-dimensional stirring effect, which not only accelerates the diffusion and mixing of the emulsion in the horizontal direction, but also promotes the emulsion with high viscosity to be fully turned and stirred in the stirring box 1, thereby significantly improving the uniformity of the whole stirring process.

[0037] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the person skilled in the art can make the modification, replacement and change of no creative contribution to the embodiment according to the need after reading the specification without departing from the principle and the purpose of the utility model, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A mixing device for processing of aqueous polyurethane emulsions, comprising a stirring tank (1), characterized in that: The top of the stirring box (1) is provided with a box cover (2), the top of the box cover (2) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a connecting plate (5), the bottom end of the connecting plate (5) is fixedly connected with a transmission rod (6), the inside of the transmission rod (6) is provided with a cavity, the inside of the transmission rod (6) is provided with an electric telescopic rod (7), the bottom end of the transmission rod (6) is fixedly connected with a connecting block (13), the surface of the connecting block (13) is symmetrically and equidistantly provided with a plurality of groups of triangular fan leaves (14).

2. The waterborne polyurethane emulsion processing mixing device according to claim 1, characterized in that: The bottom end of the electric telescopic rod (7) is fixedly connected with a plurality of groups of first fixed seats (8) symmetrically and equidistantly, the first fixed seat (8) is movably connected with a connecting rod (9).

3. The waterborne polyurethane emulsion processing mixing device according to claim 1, characterized in that: The top end side of the connecting block (13) is symmetrically and equidistantly provided with a plurality of groups of third fixed seats (12), the third fixed seat (12) is movably connected with a stirring rod (10).

4. The waterborne polyurethane emulsion processing mixing device according to claim 3, characterized in that: The middle segment of the stirring rod (10) is provided with a second fixed seat (11), and the second fixed seat (11) is movably connected with the end of the connecting rod (9).

5. The waterborne polyurethane emulsion processing mixing device according to claim 1, characterized in that: The side of the transmission rod (6) is symmetrically and equidistantly provided with a plurality of groups of through grooves matched with the connecting rod (9), and the top of the box cover (2) is provided with a feeding port (16).

6. The waterborne polyurethane emulsion processing mixing device according to claim 1, characterized in that: The top of the box cover (2) is fixedly connected with a connecting sleeve (4), and the connecting sleeve (4) is sleeved on the surface of the motor (3).

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