Viscosity testing device for polyurethane water-based color paste experiment

Abstract

The utility model relates to a viscosity testing device for a polyurethane water-based color paste experiment, and belongs to the technical field of viscosity testing, the viscosity testing device comprises a case, a quick release mechanism, a lifting mechanism and a stirring assembly, the case is connected with the lifting mechanism, the quick release mechanism is mounted below the case, the stirring assembly comprises a stirring rod, the stirring rod is connected with the quick release mechanism, and the quick release mechanism is mounted below the stirring rod. Stirring blades are arranged on the stirring rod, and a stirring barrel is placed below the stirring assembly; the quick release mechanism comprises a driving shaft, an elastic piece and a quick release execution piece, the driving shaft is coaxially connected with the case, the elastic piece is connected to the driving shaft, the quick release execution piece is connected to the driving shaft, and the elastic piece is connected with the quick release execution piece; the elastic piece is used for resetting the quick-release execution piece, and the quick-release execution piece is used for positioning the stirring rod below the case; the stirring assembly can be quickly mounted and dismounted through the quick dismounting execution part, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of viscosity testing, and in particular to a viscosity testing device for polyurethane water-based color paste experiments. Background Technology

[0002] Polyurethane water-based color pastes, as an environmentally friendly material, are widely used in coatings, inks, and other fields. Viscosity is one of the key parameters affecting product performance; therefore, viscosity testing is crucial in research and development and production. Currently, commonly used viscosity testing methods in laboratories include rotational viscometer method, falling ball viscometer method, and capillary viscometer method. The Stormer viscometer is an instrument mainly used to determine the viscosity of paints and other coatings. The instrument is computer-controlled, and the stirring blade is driven by a constant-speed motor to rotate at a speed of 200 r / min. The resistance torque experienced by the stirring blade in the sample is converted by the computer and expressed as a KU value (Krebs units (KU) is a logarithmic function of the load required to generate a rotation speed of 200 r / min, generally used to represent the viscosity used for brush and roller coating).

[0003] After each measurement, the stirring blades need to be removed and cleaned with cleaning solution or alcohol to prevent residues from affecting the next experiment. In the factory, there are often many batches of polyurethane water-based pigments waiting to be measured. Therefore, in order to facilitate the measurement of different batches of polyurethane water-based pigments, a Stormer viscometer usually has multiple spare stirring shafts. The stirring shafts are connected to the motor output shaft at the bottom of the chassis through set screws. However, every time the stirring shaft is replaced, the set screws need to be removed and installed, which wastes time and affects work efficiency. Utility Model Content

[0004] To address the issue of wasted time and reduced work efficiency when replacing the stirring shaft, this application provides a viscosity testing device for polyurethane water-based color paste experiments.

[0005] The viscosity testing device for polyurethane water-based color paste provided in this application adopts the following technical solution:

[0006] A viscosity testing device for polyurethane water-based color paste includes a chassis, a quick-release mechanism, a lifting mechanism, and a stirring assembly. The chassis is connected to the lifting mechanism, and the quick-release mechanism is installed below the chassis. The stirring assembly includes a stirring rod connected to the quick-release mechanism, and the stirring rod is equipped with stirring blades. A stirring tank is placed below the stirring assembly. The quick-release mechanism includes a drive shaft, an elastic element, and a quick-release actuator. The drive shaft is coaxially connected to the chassis, the elastic element is connected to the drive shaft, and the quick-release actuator is connected to the drive shaft. The elastic element is used to reset the quick-release actuator, and the quick-release actuator is used to position the stirring rod below the chassis.

[0007] By adopting the above technical solution and the quick-release mechanism, the mixing assembly can be quickly installed and removed from the bottom of the chassis. Pushing the quick-release actuator upwards compresses the elastic element, allowing the mixing assembly to be placed below it. Then, pushing the quick-release actuator downwards allows the parts in the quick-release actuator to engage with the parts in the mixing assembly, thus positioning the mixing assembly on the quick-release actuator for quick installation. When it is necessary to remove the mixing assembly from the quick-release actuator, pushing it upwards disengages the parts from the mixing assembly, allowing the mixing assembly to be removed quickly.

[0008] Preferably, the quick-release actuator includes an actuator plate, a push block, a push member, and a locking rod. The actuator plate has a push groove, the push block is slidably connected in the push groove, the push member is connected in the push groove, the push member connects the push block to the side wall of the push groove, and the push member is used to pull the push block away from the center of the actuator plate. The inner wall of the push groove is also provided with a positioning spring and a positioning head. The positioning spring is connected to the positioning head, and the positioning head is used to position the push block in the push groove.

[0009] By adopting the above technical solution, when installing the mixing assembly, in order to facilitate the fitting of the mixing assembly onto the locking rod, the locking rod is placed in a vertical position by pushing the pushing block to the outside of the execution plate;

[0010] After the stirring assembly is positioned on the quick-release connecting plate by locking the lever, in order to prevent the stirring assembly installed under the execution plate from vibrating due to the centrifugal force causing the push block to slide outward during the rotation of the execution plate, resulting in inaccurate measurement of the liquid viscosity, the push block needs to be positioned in the positioning groove near the center of the execution plate.

[0011] Preferably, the drive shaft is provided with a limiting block, a sliding shaft and a quick-release connecting plate. The limiting block is connected to the drive shaft, the quick-release connecting plate is connected to the drive shaft and is located below the limiting block. The sliding shaft is located between the limiting block and the quick-release connecting plate and connects the limiting block and the quick-release connecting plate. The quick-release connecting plate is also provided with a sliding connecting groove for the locking rod to pass through.

[0012] By adopting the above technical solution, the sliding shaft facilitates the sliding of the actuator plate on the drive shaft; the limiting block prevents the actuator plate from detaching from the sliding shaft when it slides upward.

[0013] The actuator plate is provided with a sliding groove that slides with the sliding shaft, and the actuator plate is slidably mounted on the sliding shaft through the sliding groove.

[0014] By adopting the above technical solution, in order to prevent the actuator plate from rotating on the slide shaft, the slide shaft is made of a hexagonal prism, and the slide groove is made of a hexagonal groove that slides in conjunction with the hexagonal prism.

[0015] The sliding connecting groove is provided with a sliding connecting block, and the sliding connecting block has a transmission hole for the locking rod to pass through.

[0016] The purpose of using the above technical solution and setting up the sliding connecting block is to limit the excessive degrees of freedom of the locking rod.

[0017] Preferably, the stirring assembly further includes a stirring connecting plate, a positioning rod, and a rotating connecting block. The stirring connecting plate is placed below the quick-release connecting plate, and the rotating connecting block is rotatably connected to the stirring connecting plate. The rotating connecting block is also provided with a transmission hole II for sliding cooperation with the locking rod. The positioning rod is connected to the stirring connecting plate, and the quick-release connecting plate is provided with a positioning through hole. The stirring connecting plate is positioned on the quick-release connecting plate by the positioning rod.

[0018] The purpose of setting the positioning through hole and positioning rod by adopting the above technical solution is to facilitate the fitting of the stirring connection plate onto the locking rod; the stirring connection plate is slidably connected to the locking rod by rotating connecting block, and when the locking rod is tilted to a certain degree, the locking rod will fix the stirring connection plate in the quick-release connection plate.

[0019] Preferably, the lifting mechanism further includes a slide rod and a lifting screw. The lower end of the slide rod is provided with a base, and the slide rod is vertically connected to the base. The lifting screw is vertically connected to the base. The chassis is provided with a support sleeve, and the chassis is slidably fitted onto the slide rod through the support sleeve. A lifting support block is connected to the chassis, and a threaded hole is opened on the lifting support block. The chassis is connected to the lifting screw through the lifting support block. The lifting mechanism includes a connecting plate and a lifting drive assembly. The connecting plate is connected to the upper end of the slide rod, and the lifting drive assembly is connected to the upper end of the connecting plate. The lifting drive assembly is used to drive the lifting screw to rotate, thereby realizing the lifting of the chassis.

[0020] By adopting the above technical solution, the lifting drive assembly drives the lifting screw to rotate. When the lifting screw rotates, the lifting screw drives the chassis to rise and fall along the axis of the lifting screw through the lifting support block.

[0021] Preferably, the lifting drive assembly includes a driven gear, a driving gear, a support plate, and a rocker arm. The driven gear is connected to the upper end of the lifting screw, the support plate is connected to the connecting plate, the driving gear is connected to the support plate, the rocker arm is connected to the driving gear, and the driving gear meshes with the driven gear.

[0022] By adopting the above technical solution, when the rocker arm rotates, the drive gear follows the rocker arm and drives the lifting screw to rotate through the driven gear, thereby realizing the lifting of the chassis.

[0023] Preferably, the base is provided with a support block for placing the container.

[0024] By adopting the above technical solution, the support block can be easily positioned to hold the container.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The quick-release mechanism enables rapid installation and removal of the mixing assembly from below the chassis. Specifically, the quick-release actuator is pushed downwards, compressing the elastic element upwards. The mixing assembly is then placed below the quick-release actuator. The actuator is then pushed downwards again, allowing the parts in the quick-release actuator to engage with the parts in the mixing assembly, thus positioning the mixing assembly on the actuator for quick installation. When it is necessary to remove the mixing assembly from the quick-release actuator, the actuator is pushed upwards, disengaging the parts from the mixing assembly and allowing for easy removal of the mixing assembly.

[0027] 2. When installing the mixing assembly, to facilitate fitting the mixing assembly onto the locking rod, the locking rod is positioned vertically by positioning the push block in the positioning groove on the outer side of the execution plate. After the locking rod positions the mixing assembly on the quick-release connecting plate, to prevent the push block from sliding outward due to centrifugal force during the rotation of the execution plate, which would cause the mixing assembly installed below the execution plate to vibrate and result in inaccurate viscosity measurements, the push block needs to be positioned in the positioning groove near the center of the execution plate. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the overall structure in the embodiments of this application.

[0029] Figure 2 This is a top view in the embodiments of this application used to illustrate the separation of the base and the chassis.

[0030] Figure 3 This is a structural schematic diagram used to illustrate the lifting mechanism in the embodiments of this application.

[0031] Figure 4 This is a structural schematic diagram illustrating the lifting drive component in the embodiments of this application.

[0032] Figure 5 This is a schematic diagram illustrating the state of the stirring assembly installed on the quick-release mechanism in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram illustrating the state of the stirring assembly being installed on the quick-release mechanism in the embodiments of this application.

[0034] Figure 7 This is a schematic diagram illustrating the structure of the drive shaft in the embodiments of this application.

[0035] Figure 8 This is an exploded view of the quick-release actuator in the embodiments of this application.

[0036] Figure 9 This is a cross-sectional view used in the embodiments of this application to illustrate the quick-release actuator.

[0037] Figure 10 This is a schematic diagram illustrating the positioning of the mixing connection plate on the quick-release connection plate in the embodiments of this application.

[0038] Figure 11 This is a schematic diagram illustrating the installation of the stirring connection plate onto the quick-release connection plate via a locking rod in an embodiment of this application.

[0039] Figure 12 This is a schematic diagram used in the embodiments of this application to illustrate the deflection of the locking lever.

[0040] Explanation of reference numerals in the attached drawings: 1. Chassis; 11. Support sleeve; 12. Lifting support block; 121. Threaded hole; 13. Display screen; 2. Quick-release mechanism; 21. Drive shaft; 211. Limit block; 212. Sliding shaft; 213. Quick-release connecting plate; 2131. Sliding connecting groove; 2132. Positioning through hole; 214. Sliding connecting block; 2141. Transmission hole one; 2142. Sliding connecting rod; 22. Fixing plate; 23. Elastic element; 24. Quick-release actuator; 241. Actuator plate; 2411. Push groove; 2412. Push guide rod; 2413. Sliding groove; 2414. Positioning hole; 2415. Positioning spring; 2416. Positioning head; 24 2. Push block; 2421. Connecting ear; 2422. Sliding connecting hole; 2423. Positioning groove; 243. Pushing part; 244. Locking rod; 3. Lifting mechanism; 31. Slide rod; 32. Lifting screw; 33. Connecting seat; 34. Connecting plate; 35. Lifting drive assembly; 351. Driven gear; 352. Drive gear; 353. Support plate; 354. Rocker arm; 4. Base; 41. Support block; 5. Container; 6. Stirring assembly; 61. Stirring connecting plate; 611. Auxiliary sliding groove; 62. Stirring rod; 621. Stirring blade; 63. Rotating connecting block; 631. Rotating connecting rod; 632. Transmission hole two; 64. Positioning rod. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0042] This application discloses a viscosity testing device for polyurethane waterborne color paste experiments, referring to... Figure 1 The system includes a chassis 1, a quick-release mechanism 2, a lifting mechanism 3, a base 4, a container 5, and a stirring assembly 6. The base 4 supports the container 5 and the lifting mechanism 3, and has a support block 41 on it to support the bottom of the container 5. The chassis 1 is connected to the lifting mechanism 3, which drives the chassis 1 to move up and down. The quick-release mechanism 2 is installed at the lower end of the chassis 1, and a motor (not shown in the figure) that drives the quick-release mechanism 2 to rotate is installed inside the chassis 1. The stirring assembly 6 is installed on the quick-release mechanism 2, and the container 5 is placed at the lower end of the stirring assembly 6. The quick-release mechanism 2 is used to quickly detach and install the stirring assembly 6. The stirring assembly 6 is used to stir the liquid in the container 5. The front of the chassis 1 is also equipped with a display screen 13, and the chassis 1 contains a computer (not shown in the figure). During the stirring process, the computer calculates the resistance experienced by the stirring assembly 6 in the container 5, and then converts the resistance into the viscosity value of the liquid and displays it on the display screen 13.

[0043] Reference Figures 2-3 The lifting mechanism 3 includes a slide rod 31, a lifting screw 32, a connecting seat 33, and a connecting plate 34. In this embodiment, four slide rods 31 are provided, and the four slide rods 31 are vertically fixedly connected to the rear side of the base 4. Among them, the two slide rods 31 closest to the chassis 1 are used for the chassis 1 to slide up and down. The four slide rods 31 form a rectangle on the base 4. The connecting seat 33 is located in the middle of the four slide rods 31. The lower end of the connecting seat 33 is fixedly connected to the base 4. The lower end of the lifting screw 32 is rotatably connected to the connecting seat 33. The lower end of the connecting plate 34 is fixedly connected to the upper end of the four slide rods 31. The upper end of the lifting screw 32 passes through the upper end of the connecting plate 34, and the lifting screw 32 is rotatably connected to the connecting plate 34. Two rows of support sleeves 11 are vertically fixedly connected to the rear side of the chassis 1. There are two support sleeves 11 in each row. The chassis 1 is slidably fitted onto the slide rod 31 through the support sleeves 11. A lifting support block 12 is also fixedly connected to the rear side of the chassis 1. The lifting support block 12 is located in the middle of the two rows of support sleeves 11. The lifting support block 12 is provided with a threaded hole 121. The lifting support block 12 is threadedly connected to the lifting screw 32. When the lifting screw 32 rotates, the lifting screw 32 drives the chassis 1 to rise and fall along the axis of the lifting screw 32 through the lifting support block 12.

[0044] Reference Figures 2-4The lifting mechanism 3 also includes a lifting drive assembly 35, which includes a driven gear 351, a driving gear 352, a support plate 353, and a rocker arm 354. In this embodiment, both the driven gear 351 and the driving gear 352 are bevel gears. Driven gear 351 is fixedly connected to the upper end of lifting screw 32. Support plate 353 is vertically fixedly connected to the upper end of connecting plate 34. Support plate 353 is located on one side of drive gear 352. The axis of drive gear 352 is perpendicular to the axis of driven gear 351. The end of rocker arm 354 is fixedly connected to driven gear 351. Drive gear 352 is rotatably connected to support plate 353 through rocker arm 354. Drive gear 352 meshes with driven gear 351. When rocker arm 354 is rotated, rocker arm 354 drives driven gear 351 to rotate through drive gear 352. Driven gear 351 then drives housing 1 to rise and fall through lifting screw 32. This method of driving housing 1 to rise and fall is relatively labor-saving and can also position housing 1 at any position of lifting screw 32.

[0045] Reference Figures 5-6 The quick-release mechanism 2 includes a drive shaft 21, a fixed plate 22, an elastic element 23, and a quick-release actuator 24. The upper end of the drive shaft 21 is coaxially and fixedly connected to the output shaft of the motor inside the housing 1. The fixed plate 22 is fixedly connected to the drive shaft 21. The quick-release actuator 24 is slidably fitted on the drive shaft 21. The elastic element 23 is located between the fixed plate 22 and the quick-release actuator 24. The elastic element 23 connects the fixed plate 22 and the quick-release actuator 24. The elastic element 23 is used to push the quick-release actuator 24 downward to reset. In this embodiment, the elastic element 23 is a spring. The quick-release actuator 24 is used to install the stirring assembly 6.

[0046] Reference Figure 7A limiting block 211, a sliding shaft 212, and a quick-release connecting plate 213 are fixedly connected to the drive shaft 21. The limiting block 211 is located below the fixing plate 22, the quick-release connecting plate 213 is located below the limiting block 211, and the sliding shaft 212 is located between the limiting block 211 and the quick-release connecting plate 213. The sliding shaft 212 connects the limiting block 211 and the quick-release connecting plate 213. In this embodiment, a four-positioning through hole 2132 is provided on the quick-release connecting plate 213. The four positioning through holes 2132 are arranged in the circumferential direction along the axis of the quick-release connecting plate 213. The four positioning through holes 2132 are used to provide positioning for the stirring assembly 6 when it is installed. The quick-release connecting plate 213 has three sliding connecting grooves 2131 along its diameter. The three sliding connecting grooves 2131 are arranged circumferentially along the axis of the quick-release connecting plate 213. Each sliding connecting groove 2131 penetrates the quick-release connecting plate 213. Each sliding connecting groove 2131 is provided with a sliding connecting block 214. The sliding connecting block 214 can rotate and move within the sliding connecting groove 2131. Specifically, in this embodiment, a rectangular groove is provided on each side of the sliding connecting groove 2131. Sliding connecting rods 2142 are fixedly connected to both sides of the sliding connecting block 214. The sliding connecting rods 2142 are cylindrical rods. The sliding connecting block 214 is installed in the sliding connecting groove 2131 through the sliding connecting rods 2142. A transmission hole 2141 is provided on the sliding connecting block 214.

[0047] Reference Figures 7-8 The quick-release actuator 24 includes an actuator plate 241, a push block 242, a pusher 243, and a locking rod 244. A groove 2413 is provided at the axis of the actuator plate 241. The actuator plate 241 is slidably connected to the slide shaft 212 of the drive shaft 21 through the groove 2413 and is located between the limit block 211 and the quick-release connecting plate 213. In this embodiment, the slide shaft 212 is a hexagonal prism, and the groove 2413 that slides with the slide shaft 212 is a hexagonal slot.

[0048] Reference Figures 7-9The execution plate 241 has three push grooves 2411 along its diameter, and these three push grooves 2411 are arranged circumferentially along the axis of the execution plate 241. Each push groove 2411 is located directly above three sliding connection grooves 2131. A push guide rod 2412 is fixedly connected to each push groove 2411, and a push block 242 is slidably connected to each push groove 2411. The outline of the push block 242 is the same as the outline of the push groove 2411. The push block 242 is also provided with a sliding connection hole 2422 that slides with the push guide rod 2412. The push guide rod 2412 is also fitted with a push member 243. In this embodiment, the push member 243 is a push spring. One end of the push spring is fixedly connected to one end of the push groove 2411, and the other end of the push spring is fixedly connected to the push block 242. The push block 242 is also fixedly connected with a connecting ear 2421, and one end of the locking rod 244 is hinged to the connecting ear 2421.

[0049] Reference Figures 8-9 Each push groove 2411 has two positioning holes 2414 on its top wall. In this embodiment, the positioning holes 2414 are blind holes. One positioning hole 2414 is far from the center of the execution plate 241, and the other positioning hole 2414 is close to the center of the execution plate 241. Each positioning hole 2414 is equipped with a positioning spring 2415. The upper end of the positioning spring 2415 is fixedly connected to the top wall of the positioning hole 2414, and the lower end of the positioning spring 2415 is fixedly connected to a positioning head 2416. The purpose of installing the positioning spring 2415 and the positioning head 2416 in the positioning hole 2414 is to position the push block 242. The upper end of the push block 242 is provided with a positioning groove 2423 that is fitted into the positioning head 2416. In this embodiment, the elastic force of the positioning spring 2415 is greater than the elastic force of the push spring. The purpose of this design is to prevent the push spring from pushing the push block 242 positioned at the push groove 2411 away.

[0050] Reference Figure 7 , Figure 10 The stirring assembly 6 includes a stirring connecting plate 61, a stirring rod 62, a positioning rod 64, and a rotating connecting block 63. The stirring connecting plate 61 has three auxiliary sliding grooves 611 along its diameter direction, and the three auxiliary sliding grooves 611 are arranged circumferentially along the axis of the stirring connecting plate 61. A rotating connecting rod 631 is fixedly connected to the rotating connecting block 63, and the rotating connecting block 63 is rotatably connected to the auxiliary sliding grooves 611 through the rotating connecting rod 631. A transmission hole 632 for 244 to pass through is provided on the rotating connecting block 63. The upper end of the stirring rod 62 is fixedly connected to the lower end of the stirring connecting plate 61, and a stirring blade 621 is fixedly connected to the stirring rod 62.

[0051] Reference Figures 6-7The fixed plate 22 is located above the execution plate 241, the execution plate 241 is located above the quick-release connecting plate 213, and the quick-release connecting plate 213 is located above the stirring connecting plate 61. When the execution plate 241 is pushed upward along the axis of the drive shaft 21, the execution plate 241 compresses the elastic member 23 upward until the upper end of the execution plate 241 touches the limit block 211. At this time, the locking rod 244 is in a vertical state. At this time, the lower end of the locking rod 244 is located in the transmission hole 2141 on the sliding connecting block 214. The lower end of the locking rod 244 is connected in the transmission hole 2141 to facilitate the installation of the stirring assembly 6.

[0052] Reference Figure 6 , Figure 7 , Figure 10 The process of installing the mixing assembly 6 is as follows: First, push the execution plate 241 to the top, then position the pushing block 242 on the execution plate 241 in the positioning groove 2423 away from the center of the execution plate 241, and then position the positioning rod 64 on the mixing connecting plate 61 in the positioning through hole 2132 of the quick-release connecting plate 213. At this time, the rotating connecting block 63 on the mixing connecting plate 61 is located directly below the sliding connecting block 214 on the quick-release connecting plate 213, and the axis of the first transmission hole 2141 and the axis of the second transmission hole 632 are on the same straight line; then refer to Figure 9 , Figure 11 Release the actuator plate 241. The actuator plate 241 slides downward under the action of the elastic element 23. The actuator plate 241 moves downward with the locking rod 244. The lower end of the locking rod 244 passes through the rotating connecting block 63 from the sliding connecting block 214. When the actuator plate 241 moves to the lowest point, the lower end of the actuator plate 241 abuts against the upper end of the positioning rod 64 on the stirring connecting plate 61. At this time, push block 242 is pushed towards the center of actuator plate 241 until push block 242 is disengaged from the positioning state. The push spring pushes the disengaged push block 242 towards the center of actuator plate 241 until the push spring pushes push block 242 to the end of push groove 2411. The stirring assembly 6 is then installed on the drive shaft 21. When push block 242 moves, locking rod 244 moves with push block 242. Push block 242 installs stirring assembly 6 below drive shaft 21 through locking rod 244. The specific details are as follows.

[0053] Reference Figure 9 and Figure 12When the push block 242 is disengaged from the positioning state, the push spring begins to push the push block 242 toward the center of the execution plate 241. The push block 242 then drives the locking rod 244 to move toward the center of the execution plate 241. At the same time, the lower end of the locking rod 244 also begins to tilt away from the stirring connecting plate 61. During the tilting process, the locking rod 244 drives the rotating connecting block 63 to deflect on the stirring connecting plate 61, and also drives the sliding connecting block 214 to deflect and move toward the center of the quick-release connecting plate 213. The middle part of the deflected sliding connecting block 214 moves in the sliding connecting groove 2131, and the lower part of the deflected sliding connecting block 214 moves in the auxiliary sliding groove 611. As the push block 242 moves towards the center of the execution plate 241, the lower end of the locking rod 244 tilts away from the stirring connecting plate 61. When the push block 242 reaches the end of the push groove 2411, the angle between the axis of the locking rod 244 and the vertical line is greater than 45°. At this time, the stirring connecting plate 61 is installed below the quick-release connecting plate 213 by the locking rod 244. To prevent the push block 242 from sliding outward due to centrifugal force during the rotation of the execution plate 241, which would cause the stirring assembly 6 installed below the execution plate 241 to vibrate and result in inaccurate viscosity measurements, the push block 242 needs to be positioned in the positioning groove 2423 near the center of the execution plate 241.

[0054] Reference Figure 5 The function of the elastic element 23 is to press the lower end of the execution plate 241 down onto the upper end of the positioning rod 64 to prevent the execution plate 241 from sliding upward and causing the stirring connecting plate 61 to slip off the locking rod 244.

[0055] Reference Figure 5 , Figure 9 If the stirring component 6 needs to be replaced, first move the pushing block 242, which is positioned near the center of the execution plate 241, away from the center of the execution plate 241 until the pushing block 242 is disengaged. Then push the execution plate 241 upwards. Figure 11 When the actuator plate 241 is pushed to its uppermost position, the locking rod 244 is in a vertical position. The locking rod 244 deflects the upper end face of the rotating connecting block 63 and the upper end face of the sliding connecting block 214 to be parallel to the horizontal plane, and the transmission hole 2141 on the sliding connecting block 214 is coaxial with the transmission hole 632 on the rotating connecting block 63. Hold the stirring rod 62 and move it downward to remove the stirring assembly 6. After removing the stirring assembly 6 and handing it to the cleaning personnel, position the pushing block 242 in the positioning groove 2423 away from the center of the actuator plate 241. Then take another stirring assembly 6 and install it on the drive shaft 21 in the same manner.

[0056] The implementation principle of the viscosity testing device for polyurethane water-based pigments in this application embodiment is as follows: First, the stirring assembly 6 is installed below the drive shaft 21. Then, the container 5 is placed on the support block 41 of the base 4. Then, by rotating the rocker arm 354, the driving gear 352 and the driven gear 351 are meshed, thereby driving the lifting screw 32 to rotate, so that the chassis 1 is lowered. After the chassis 1 is lowered to a suitable position, the start switch (not shown in the figure) on the chassis 1 is pressed. The start switch is used to control the rotation and stop of the motor. The motor drives the drive shaft 21 to rotate through the output shaft. The drive shaft 21 then drives the stirring rod 62 to rotate, thereby stirring the liquid in the container 5. The viscosity of the liquid is displayed on the display screen 13.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polyurethane aqueous colorant paste experimental viscosity testing device, characterized by: The assembly includes a chassis (1), a quick-release mechanism (2), a lifting mechanism (3), and a stirring assembly (6). The chassis (1) is connected to the lifting mechanism (3). The quick-release mechanism (2) is installed below the chassis (1). The stirring assembly (6) includes a stirring rod (62), which is connected to the quick-release mechanism (2). The stirring rod (62) is provided with stirring blades (621). A stirring tank is placed below the stirring assembly (6). The quick-release mechanism (2) includes a drive shaft (21), an elastic element (23), and a quick-release actuator (24). The drive shaft (21) is coaxially connected to the housing (1). The elastic element (23) is connected to the drive shaft (21). The quick-release actuator (24) is connected to the drive shaft (21). The elastic element (23) is connected to the quick-release actuator (24). The elastic element (23) is used to reset the quick-release actuator (24). The quick-release actuator (24) is used to position the stirring rod (62) below the housing (1).

2. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 1, characterized in that: The quick-release actuator (24) includes an actuator plate (241), a push block (242), a pusher (243), and a locking rod (244). The actuator plate (241) has a push groove (2411). The push block (242) is slidably connected in the push groove (2411). The pusher (243) is connected in the push groove (2411). The pusher (243) connects the push block (242) to the side wall of the push groove (2411). The pusher (243) is used to pull the push block (242) away from the center of the actuator plate (241). The inner wall of the push groove (2411) is also provided with a positioning spring (2415) and a positioning head (2416). The positioning spring (2415) is connected to the positioning head (2416), and the positioning head (2416) is used to position the push block (242) in the push groove (2411).

3. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 2, characterized in that: The drive shaft (21) is provided with a limiting block (211), a sliding shaft (212) and a quick-release connecting plate (213). The limiting block (211) is connected to the drive shaft (21), and the quick-release connecting plate (213) is connected to the drive shaft (21). The quick-release connecting plate (213) is located below the limiting block (211). The sliding shaft (212) is located between the limiting block (211) and the quick-release connecting plate (213). The sliding shaft (212) connects the limiting block (211) and the quick-release connecting plate (213). The quick-release connecting plate (213) is also provided with a sliding connecting groove (2131) through which the locking rod (244) passes.

4. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 3, characterized in that: The actuator plate (241) is provided with a sliding groove (2413) that slides with the sliding shaft (212). The actuator plate (241) is slidably mounted on the sliding shaft (212) through the sliding groove (2413).

5. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 3, characterized in that: The sliding connecting groove (2131) is provided with a sliding connecting block (214), and the sliding connecting block (214) is provided with a transmission hole (2141) for the locking rod (244) to pass through.

6. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 1, characterized in that: The stirring assembly (6) also includes a stirring connecting plate (61), a positioning rod (64) and a rotating connecting block (63). The stirring connecting plate (61) is placed below the quick-release connecting plate (213). The rotating connecting block (63) is rotatably connected to the stirring connecting plate (61). The rotating connecting block (63) is also provided with a transmission hole (632) for sliding cooperation with the locking rod (244). The positioning rod (64) is connected to the stirring connecting plate (61), and the quick-release connecting plate (213) is provided with a positioning through hole (2132). The stirring connecting plate (61) is positioned on the quick-release connecting plate (213) by the positioning rod (64).

7. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 1, characterized in that: The lifting mechanism (3) further includes a slide rod (31) and a lifting screw (32). The slide rod (31) has a base (4) at its lower end. The slide rod (31) is vertically connected to the base (4). The lifting screw (32) is vertically connected to the base (4). The housing (1) is provided with a support sleeve (11). The housing (1) is slidably fitted onto the slide rod (31) through the support sleeve (11). The housing (1) is connected with a lifting support block (12). The lifting support block (12) has a threaded hole (121). The housing (1) is connected to the lifting screw (32) through the lifting support block (12). The lifting mechanism (3) includes a connecting plate (34) and a lifting drive assembly (35). The connecting plate (34) is connected to the upper end of the slide rod (31), and the lifting drive assembly (35) is connected to the upper end of the connecting plate (34). The lifting drive assembly (35) is used to drive the lifting screw (32) to rotate, thereby realizing the lifting of the chassis (1).

8. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 7, characterized in that: The lifting drive assembly (35) includes a driven gear (351), a driving gear (352), a support plate (353), and a rocker arm (354). The driven gear (351) is connected to the upper end of the lifting screw (32). The support plate (353) is connected to the connecting plate (34). The driving gear (352) is connected to the support plate (353). The rocker arm (354) is connected to the driving gear (352). The driving gear (352) meshes with the driven gear (351).

9. The polyurethane water-based colorant paste experimental viscosity testing device according to claim 7, characterized in that: The base (4) is provided with a support block (41), which is used to place the container (5).

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