An unsaturated polyester resin viscosity testing device and testing method

Abstract

The present invention belongs to the field of resin viscosity testing, and specifically relates to an unsaturated polyester resin viscosity testing device and a testing method, including a control box. The front end of the control box is concave. A plurality of detection rotors are arranged in the concave part at the front end of the control box. The shapes and masses of the plurality of detection rotors are different, and the plurality of detection rotors are arranged linearly and equidistantly. A detection tank is arranged at the front end of the control box. The top of the detection tank is open, and an electric heating tray for driving the detection tank to move is arranged at the bottom of the detection tank. Through this setting, the testing process is effectively simplified. It is not necessary to frequently replace the detection rotors, and the resin viscosity in different states can also be detected. Moreover, during the whole process, there is no need to manually touch the detection tank, and the detection tank is always on the electric heating tray, ensuring the constant temperature of the internal resin, thereby ensuring the accuracy of the detection data.

Description

Technical Field

[0001] The present invention belongs to the field of resin viscosity testing, and specifically relates to an unsaturated polyester resin viscosity testing device and a testing method. Background Art

[0002] Resins are divided into natural resins and synthetic resins. Natural resins refer to amorphous organic substances obtained from secretions of animals and plants in nature, and synthetic resins refer to resin products obtained by chemical synthesis from simple organic substances. Resins have a very wide range of application scenarios, such as coatings and paints, production of artworks and handicrafts, adhesives and bonding agents, etc.

[0003] Resin viscosity testing is an important method for evaluating the fluidity and processing performance of resins. By understanding the fluidity of substances at different temperatures, the characteristics of products can be accurately controlled to ensure their best performance in specific applications.

[0004] Traditional viscosity testing devices generally control a rotor through a driving member, allowing the rotor to rotate in the test liquid. After measuring the approximate viscosity, the rotor on the driving member needs to be manually replaced according to the viscosity and a secondary measurement is required. In order to measure more accurate values, during this process, the rotor on the driving member needs to be manually replaced, and during the replacement process, the test liquid and the container for holding the liquid need to be moved away first, and the container needs to be returned to its original position after the replacement is completed. The entire operation process is relatively complex; at the same time, since resin is a liquid that changes its own viscosity according to temperature changes, a constant temperature needs to be maintained during the detection process. Since the container is transferred, an additional heating member needs to be set up to heat the container to maintain the temperature of the liquid inside the container, resulting in an increase in the required devices, and there are certain safety hazards in the transfer of the container at high temperatures.

[0005] Therefore, the present invention provides an unsaturated polyester resin viscosity testing device and a testing method. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An unsaturated polyester resin viscosity testing device of the present invention includes a regulation box. The front end of the regulation box is concave-shaped. A plurality of detection rotors are arranged in the concave portion at the front end of the regulation box. The shapes and masses of the plurality of detection rotors are different, and the plurality of detection rotors are arranged linearly and equidistantly. A detection tank is arranged at the front end of the regulation box. The top of the detection tank is open, and an electric heating tray for driving the detection tank to move is arranged at the bottom of the detection tank. A servo motor for controlling the rotation of the detection rotor is arranged inside the regulation box, and a rotation speed measurement module for monitoring the rotation speed of the detection rotor is arranged inside the regulation box.

[0008] Preferably, through the settings of the control box and the electric heating tray, the resin to be tested is placed in the test tank. The electric heating tray is internally provided with heating wires, which can uniformly heat the test tank from the bottom, so that the resin inside the test tank maintains a constant temperature. The electric heating tray can move horizontally and up and down. The test tank is moved to the bottom of the test rotor located in the middle, and then lifted, so that the test rotor is inserted into the resin in the test tank. The test rotor located in the middle is controlled to rotate by a servo motor. Due to the viscosity of the resin, resistance will be brought to the rotation of the test rotor, resulting in the rotation speed of the test rotor being affected under the same power consumption of the servo motor. The rotation speed of the test rotor is monitored in real time through the rotation speed measurement module, and then by comparing the normal rotation speed of the test rotor without the influence of resin, the viscosity value of the resin can be calculated. The number of test rotors can be five, and the volume and surface area of the five test rotors increase in sequence from one end to the other end. The larger the surface area of the test rotor, the greater the influence of viscosity, which is used to detect the resin solution under different viscosities. First, let the resin solution be detected by the test rotor in the middle position. When the viscosity is detected for the first time, the position of the test tank can be adjusted according to the viscosity value, and the electric heating tray will transfer the test tank to the bottom of another test rotor for secondary detection, aiming to measure the viscosity of the resin more accurately. And because the viscosity of the resin will change with the temperature, in order to detect the viscosity value of the resin at different temperatures, the temperature of the resin is changed by the electric heating tray, and then the position of the test tank is changed by the electric heating tray. Through this setting, the test process is effectively simplified. Without frequently replacing the test rotor, the viscosity of the resin in different states can also be detected. And during the whole process, there is no need to manually touch the test tank, and the test tank is always on the electric heating tray, ensuring the constant temperature of the internal resin, thus ensuring the accuracy of the test data.

[0009] Preferably, a transmission shaft is fixedly connected to the top of the detection rotor. A restraint sleeve fixedly connected to the regulation box is sleeved outside the transmission shaft. A driven gear is fixedly connected to the top of the transmission shaft. A driving gear is arranged inside the regulation box. The output end of the servo motor is fixedly connected to the driving gear. The bottom detection end of the rotational speed measurement module is connected to the middle of the top surface of the driving gear. A lead screw-nut mechanism I and two electric telescopic rods II for driving the servo motor to move are arranged inside the regulation box. The positions of multiple detection rotors are restricted by the restraint sleeve. When a certain detection rotor needs to rotate, the lead screw-nut mechanism I will first drive the entire servo motor and the driving gear to translate until the driving gear and the corresponding driven gear are aligned. Then, the electric telescopic rod II controls the driving gear to approach the driven gear and mesh with it. Then, the servo motor drives the driving gear to rotate, thereby driving the driven gear and the detection rotor to rotate. The rotational speed measurement module measures the rotational speed of the driving gear. The rotational speed of the driving gear is the same as that of the detection rotor, indirectly detecting the rotational speed of the detection rotor. Through this setting, the function of using a set of detection parts to control multiple detection rotors to work and monitor the rotational speed conditions of multiple detection rotors is realized. Compared with using multiple sets of detection parts, this setting also has a lower cost.

[0010] Preferably, the mobile ends of the two electric telescopic rods II are respectively fixedly connected to the rotational speed measurement module and the servo motor. The two electric telescopic rods II are arranged parallel to each other vertically. The lead screw-nut mechanism I is fixedly connected inside the regulation box along the length direction of the regulation box. A series connection seat is fixedly connected between the two electric telescopic rods II. The mobile end of the lead screw-nut mechanism I is fixedly connected to the series connection seat. The lead screw-nut mechanism I can drive the two electric telescopic rods II to translate along the length direction of the regulation box, so that the driving gear can be aligned with any driven gear. Through the extension of the electric telescopic rod II, the driving gear is meshed and aligned with the aligned driven gear. It should be noted that during the regulation process, the driving gear needs to be far away from the driven gear first before the subsequent translation process can be carried out.

[0011] Preferably, a drive box is arranged at the front end of the regulation box. The length of the drive box is longer than that of the regulation box. A lead screw-nut mechanism II arranged along the length direction of the drive box is installed at one end of the drive box facing the regulation box. The mobile end of the lead screw-nut mechanism II is fixedly connected to a vertically arranged electric telescopic rod III. The mobile end of the electric telescopic rod III is fixedly connected to the electric heating tray. The electric heating tray is controlled to move horizontally along the length direction of the regulation box through the lead screw-nut mechanism II. Since the length of the drive box and the lead screw-nut mechanism II is longer than that of the regulation box, the electric heating tray can be moved to the outside of the regulation box, facilitating the placement and removal of the detection tank. The lifting of the electric heating tray is controlled by the extension and shortening of the vertical electric telescopic rod III.

[0012] Preferably, a plurality of access holes are formed in the concave portion at the front end of the control box. The positions of the access holes are adapted to the positions of a plurality of detection rotors. A plurality of cleaning pipes capable of lifting are arranged inside the control box. A water supply tank for supplying water to the plurality of cleaning pipes is arranged at the bottom of the front end of the control box. Since the surface of the previous detection rotor is often covered with resin each time the detection rotor is switched, in order not to contaminate the device, after the electric heating tray is removed, the cleaning pipes at the bottom move upward and are sleeved outside the detection rotor, so that the resin will not leak to the outside of the device. When the device is not in use, the cleaning pipes are also sleeved outside the detection rotor to reduce the influence of the external environment on the detection rotor. After all the detection work on the resin is completed, an appropriate amount of cleaning water is injected into the cleaning pipes through the water supply tank, so that the resin on the surface of the detection rotor slowly dissolves into the water. At the same time, the detection rotors are driven to rotate in sequence to accelerate the dissolution speed and strip the resin on the surface of the detection rotor clean. Then the water supply tank recovers the cleaning water, and the electric heating tray is used to dry the detection rotor at the bottom. Finally, the cleaning pipes are sleeved outside the detection rotors again, thus realizing the full-automatic treatment of the used detection rotors and reducing the manual post-treatment steps.

[0013] Preferably, a support seat is arranged below the cleaning pipe. A control motor is fixedly connected to the top of the support seat. The output end of the control motor is fixedly connected to the top of the cleaning pipe. A vertically arranged electric telescopic rod I is fixedly connected to the top of the support seat. The electric telescopic rod I controls the lifting of the support seat. When the support seat descends to the lowest position, the control motor controls the cleaning pipe to rotate to one side. With this setting, the bottom of the control box does not need to be set too high, enabling the cleaning pipe to effectively utilize the storage area inside the control box. At the same time, it is not easy for foreign objects to fall into the inclined cleaning pipe at the top.

[0014] Preferably, connection valves are fixedly connected to both ends of the water supply tank. A water supply pipe is connected between the bottom of the cleaning pipe and the water supply tank. The water supply pipe is arranged in a spiral shape. A solenoid valve is connected between the water supply pipe and the water supply tank. A water pipe is required outside one of the connection valves, and the other connection valve is connected to a drain pipe. There is a certain water pressure in the water pipe, and the other connection valve is initially closed. Water is injected into the specified water supply pipe and cleaning pipe by opening the solenoid valve. After injecting an appropriate amount of water, the solenoid valve is closed. After the cleaning is completed, the solenoid valve is opened, the connection valve connected to the external water pipe is closed, and the connection valve connected to the drain pipe is opened. Under the action of gravity, the cleaned water is discharged from the drain pipe to complete the cleaning work. The spiral water supply pipe can be appropriately extended to adapt to the lifting process of the cleaning pipe.

[0015] Preferably, a linkage arm is fixedly connected to one side of the rotational speed measurement module facing the driven gear. A fixed arm is arranged outside the driven gear, and a connecting frame is fixedly connected to the outside of the fixed arm. A plurality of sleeves are fixedly connected inside the regulation box. The connecting frame is slidably connected to the sleeves, and a spring is fixedly connected between the connecting frame and the sleeves. To ensure the accuracy during the meshing process of the driving gear and the driven gear, when the driving gear moves away from the driven gear, the linkage arm will move away from the connecting frame, and the connecting frame will push the fixed arm outwards under the action of the spring, making the arc-shaped fixed arm fit the driven gear and keeping the driven gear in its original posture. The servo motor will rotate the driving gear for a full integer number of turns at the final stage of rotation, which is not only convenient for measuring the rotational speed but also ensures that each driven gear maintains the same state after stopping. When the driving gear approaches the driven gear, the linkage arm will squeeze the connecting frame, causing the connecting frame and the fixed arm to retract backwards, releasing the fixation of the driven gear so that it can rotate normally. Through this setting, it is ensured that the driving gear and the driven gear can mesh and transmit power normally.

[0016] A method for testing the viscosity of unsaturated polyester resin, which is applicable to the above-mentioned device for testing the viscosity of unsaturated polyester resin. The specific method is as follows:

[0017] S1: Put the resin to be detected into the detection tank. The electric heating tray is internally provided with an electric heating wire, which can uniformly heat the detection tank from the bottom to keep the resin inside the detection tank at a constant temperature.

[0018] S2: The electric heating tray can move horizontally and up and down. Move the detection tank to the bottom of the detection rotor located in the middle, and then raise it to insert the detection rotor into the resin in the detection tank. Control the detection rotor located in the middle to rotate through a servo motor.

[0019] S3: Since the viscosity of the resin will bring resistance to the rotation of the detection rotor, resulting in the rotation speed of the detection rotor being affected under the same power consumption of the servo motor. By using the rotational speed measurement module to monitor the rotational speed of the detection rotor in real time and then comparing it with the normal rotational speed of the detection rotor without the influence of the resin, the viscosity value of the resin can be calculated.

[0020] The specific rotation steps of the detection rotor described in S2 are as follows:

[0021] Q1: Restrict the positions of multiple detection rotors through a restraint sleeve. When the detection rotor needs to rotate, the lead screw nut mechanism 1 will first drive the entire servo motor and the driving gear to translate until the driving gear and the corresponding driven gear are aligned.

[0022] Q2: Then, the electric telescopic rod 2 controls the driving gear to approach the driven gear and mesh with it, and then drives the driving gear to rotate through the servo motor, thereby driving the driven gear and the detection rotor to rotate.

[0023] Q3: The rotational speed measurement module measures the rotational speed of the driving gear. Since the driving gear has the same rotational speed as the detection rotor, the rotational speed of the detection rotor is indirectly detected.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. For the unsaturated polyester resin viscosity testing device and testing method of the present invention, through the setting of the regulation box and the electric heating tray, the resin to be detected is placed in the detection tank. The electric heating tray is internally provided with heating wires and can uniformly heat the detection tank from the bottom, so that the resin inside the detection tank maintains a constant temperature. The electric heating tray can move horizontally and up and down. The detection tank is moved to the bottom of the detection rotor located in the middle and then lifted, so that the detection rotor is inserted into the resin in the detection tank. The detection rotor located in the middle is controlled by a servo motor to rotate. Since the viscosity of the resin will bring resistance to the rotation of the detection rotor, the rotation speed of the detection rotor is affected under the same power consumption of the servo motor. The rotational speed measurement module monitors the rotational speed of the detection rotor in real time, and by comparing the normal rotational speed of the detection rotor without the influence of the resin, the viscosity value of the resin can be calculated. The number of detection rotors can be five, and the volume and surface area of the five detection rotors increase in sequence from one end to the other end. The detection rotor with a larger surface area is more affected by the viscosity and is used to detect resin solutions under different viscosities. First, let the resin solution be detected by the detection rotor in the middle position. When the viscosity is detected for the first time, the position of the detection tank can be adjusted according to the viscosity value, and the electric heating tray will transfer the detection tank to the bottom of another detection rotor for secondary detection, aiming to measure the viscosity of the resin more accurately. And since the viscosity of the resin changes with temperature, in order to detect the viscosity value of the resin at different temperatures, the temperature of the resin is changed by the electric heating tray, and then the position of the detection tank is changed by the electric heating tray. Through this setting, the testing process is effectively simplified. Without frequently replacing the detection rotor, the viscosity of the resin in different states can also be detected, and during the whole process, there is no need to manually touch the detection tank, and the detection tank is always on the electric heating tray, ensuring the constant temperature of the internal resin, thereby ensuring the accuracy of the detection data.

[0026] 2. For the viscosity testing device and testing method of the unsaturated polyester resin described in the present invention, the positions of multiple detection rotors are restricted by a restraint sleeve. When a certain detection rotor needs to rotate, the lead screw nut mechanism 1 will first drive the entire servo motor and the driving gear to translate until the driving gear and the corresponding driven gear are aligned. Then, the electric telescopic rod 2 controls the driving gear to approach the driven gear and mesh with each other. After that, the servo motor drives the driving gear to rotate, thereby driving the driven gear and the detection rotor to rotate. The rotational speed measurement module measures the rotational speed of the driving gear. Since the rotational speed of the driving gear is the same as that of the detection rotor, the rotational speed of the detection rotor is indirectly detected. Through this setting, the function of controlling multiple detection rotors to work and monitoring the rotational speeds of multiple detection rotors can be achieved by using a set of detection parts. Compared with using multiple sets of detection parts, this setting also has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 is a perspective view of the present invention;

[0029] Figure 2 is a perspective view of the control box of the present invention;

[0030] Figure 3 is a perspective view of the support base and the restraint sleeve of the present invention;

[0031] Figure 4 is a perspective view of the electric telescopic rod 1 of the present invention;

[0032] Figure 5 is a perspective view of the detection rotor and the connecting frame of the present invention;

[0033] Figure 6 is a flowchart of the method of the present invention;

[0034] In the figure: 1, control box; 2, detection tank; 3, detection rotor; 4, drive box; 5, electric heating tray; 6, water supply tank; 7, connection valve; 8, access hole; 9, lead screw nut mechanism 1; 10, electric telescopic rod 1; 11, support base; 12, cleaning pipe; 13, water supply pipe; 14, control motor; 15, series seat; 16, electric telescopic rod 2; 17, rotational speed measurement module; 18, servo motor; 19, driving gear; 20, linkage arm; 21, driven gear; 22, fixed arm; 23, sleeve; 24, connecting frame; 25, transmission shaft; 26, restraint sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0036] As Figures 1 to 6 shown, an unsaturated polyester resin viscosity testing device according to an embodiment of the present invention includes a regulation box 1. The front end of the regulation box 1 is concave. A plurality of detection rotors 3 are arranged in the concave part at the front end of the regulation box 1. The shapes and masses of the plurality of detection rotors 3 are different from each other. The plurality of detection rotors 3 are arranged linearly and equidistantly. A detection tank 2 is arranged at the front end of the regulation box 1. The top of the detection tank 2 is open. A heating tray 5 for driving the detection tank 2 to move is arranged at the bottom of the detection tank 2. A servo motor 18 for controlling the rotation of the detection rotor 3 is arranged inside the regulation box 1, and a rotation speed measurement module 17 for monitoring the rotation speed of the detection rotor 3 is arranged inside the regulation box 1;

[0037] Through the settings of the regulation box 1 and the heating tray 5, the resin to be detected is placed in the detection tank 2. The heating tray 5 is internally provided with heating wires, which can uniformly heat the detection tank 2 from the bottom, so that the resin inside the detection tank 2 maintains a constant temperature. The heating tray 5 can move horizontally and vertically. The detection tank 2 is moved to the bottom of the detection rotor 3 located in the middle, and then lifted, so that the detection rotor 3 is inserted into the resin in the detection tank 2. The servo motor 18 is used to control the rotation of the detection rotor 3 located in the middle. Since the viscosity of the resin will bring resistance to the rotation of the detection rotor 3, the rotation speed of the detection rotor 3 is affected under the same power consumption of the servo motor 18. The rotation speed measurement module 17 monitors the rotation speed of the detection rotor 3 in real time. By comparing the normal rotation speed of the detection rotor 3 without the influence of the resin, the viscosity value of the resin can be calculated. The number of detection rotors 3 can be five, and the volume and surface area of the five detection rotors 3 increase in sequence from one end to the other end. The detection rotor 3 with a larger surface area is more affected by the viscosity, and is used to detect resin solutions under different viscosities. First, let the resin solution be detected by the detection rotor 3 located in the middle position. When the viscosity is detected for the first time, the position of the detection tank 2 can be adjusted according to the viscosity value. The heating tray 5 will transfer the detection tank 2 to the bottom of another detection rotor 3 for secondary detection, aiming to more accurately measure the viscosity of the resin. And since the viscosity of the resin changes with temperature, in order to detect the viscosity value of the resin at different temperatures, the temperature of the resin is changed by the heating tray 5, and then the position of the detection tank 2 is changed by the heating tray 5. Through this setting, the testing process is effectively simplified. Without frequently replacing the detection rotor 3, the viscosity of the resin in different states can also be detected. And during the whole process, there is no need to manually touch the detection tank 2, and the detection tank 2 is always on the heating tray 5, ensuring the constant temperature of the internal resin, thereby ensuring the accuracy of the detection data.

[0038] A drive shaft 25 is fixedly connected to the top of the detection rotor 3. A restraint sleeve 26 fixedly connected to the regulation box 1 is sleeved outside the drive shaft 25. A driven gear 21 is fixedly connected to the top of the drive shaft 25. A driving gear 19 is arranged inside the regulation box 1. The output end of the servo motor 18 is fixedly connected to the driving gear 19. The bottom detection end of the rotation speed measurement module 17 is connected to the middle of the top surface of the driving gear 19. A lead screw nut mechanism 9 for driving the servo motor 18 to move and two electric telescopic rods 16 are arranged inside the regulation box 1;

[0039] During operation, the positions of multiple detection rotors 3 are restricted by the restraint sleeve 26. When a certain detection rotor 3 needs to rotate, the lead screw nut mechanism 9 will first drive the entire servo motor 18 and the driving gear 19 to translate until the driving gear 19 and the corresponding driven gear 21 are aligned. Then, the electric telescopic rod 16 controls the driving gear 19 to approach the driven gear 21 and mesh with it. Then, the servo motor 18 drives the driving gear 19 to rotate, thereby driving the driven gear 21 and the detection rotor 3 to rotate. The rotation speed measurement module 17 measures the rotation speed of the driving gear 19. The driving gear 19 has the same rotation speed as the detection rotor 3, indirectly detecting the rotation speed of the detection rotor 3. Through this setting, the function of using a set of detection parts to control the operation of multiple detection rotors 3 and monitor the rotation speed of multiple detection rotors 3 is realized. Compared with using multiple sets of detection parts, this setting also has a lower cost.

[0040] The mobile ends of the two electric telescopic rods 16 are respectively fixedly connected to the rotation speed measurement module 17 and the servo motor 18. The two electric telescopic rods 16 are arranged parallel to each other up and down. The lead screw nut mechanism 9 is fixedly connected inside the regulation box 1 along the length direction of the regulation box 1. A series connection seat 15 is fixedly connected between the two electric telescopic rods 16. The mobile end of the lead screw nut mechanism 9 is fixedly connected to the series connection seat 15;

[0041] During operation, the lead screw nut mechanism 9 can drive the two electric telescopic rods 16 to translate along the length direction of the regulation box 1, so that the driving gear 19 can be aligned with any driven gear 21. By extending the electric telescopic rod 16, the driving gear 19 can be meshed and aligned with the aligned driven gear 21. It should be noted that during the regulation process, the driving gear 19 needs to be moved away from the driven gear 21 first before the subsequent translation process can be carried out.

[0042] A drive box 4 is arranged at the front end of the regulation box 1. The length of the drive box 4 is longer than that of the regulation box 1. A lead screw nut mechanism 2 is arranged at one end of the drive box 4 facing the regulation box 1 along the length direction of the drive box 4. The mobile end of the lead screw nut mechanism 2 is fixedly connected to a vertically arranged electric telescopic rod 3. The mobile end of the electric telescopic rod 3 is fixedly connected to the electric heating tray 5;

[0043] During operation, the electrothermal tray 5 is controlled by the lead screw nut mechanism II to move horizontally along the length direction of the regulation box 1. Since the driving box 4 and the lead screw nut mechanism II are longer than the regulation box 1, the electrothermal tray 5 can be moved to the outside of the regulation box 1, facilitating the placement and removal of the test tank 2. The lifting of the electrothermal tray 5 is controlled by the extension and retraction of the vertical electric telescopic rod III.

[0044] A plurality of access holes 8 are provided in the concave portion at the front end of the regulation box 1. The positions of the access holes 8 are adapted to the positions of the plurality of test rotors 3. A plurality of cleaning pipes 12 capable of lifting are provided inside the regulation box 1. A water supply tank 6 for supplying water to the plurality of cleaning pipes 12 is provided at the bottom of the front end of the regulation box 1.

[0045] During operation, since the surface of the previous test rotor 3 is often covered with resin each time the test rotor 3 is switched, in order not to contaminate the device, after the electrothermal tray 5 is removed, the cleaning pipe 12 at the bottom moves upward and sleevs outside the test rotor 3, so that the resin will not leak outside the device. When the device is not working, the cleaning pipe 12 also sleevs outside the test rotor 3 to reduce the influence of the external environment on the test rotor 3. After all the resin detection work is completed, an appropriate amount of cleaning water is injected into the cleaning pipe 12 through the water supply tank 6, so that the resin on the surface of the test rotor 3 slowly dissolves into the water. At the same time, the test rotor 3 is driven to rotate in sequence to accelerate the dissolution speed, so that the resin on the surface of the test rotor 3 is completely peeled off. Then the water supply tank 6 recovers the cleaning water, and the electrothermal tray 5 is used to dry the test rotor 3 at the bottom. Finally, the cleaning pipe 12 is sleeved outside the test rotor 3 again, thus realizing the full-automatic treatment of the used test rotor 3 and reducing the manual post-treatment steps.

[0046] A support base 11 is provided below the cleaning pipe 12. A regulation motor 14 is fixedly connected to the top of the support base 11. The output end of the regulation motor 14 is fixedly connected to the top of the cleaning pipe 12. A vertically arranged electric telescopic rod I 10 is fixedly connected to the top of the support base 11.

[0047] During operation, the electric telescopic rod I 10 controls the lifting of the support base 11. When the support base 11 descends to the bottommost position, the regulation motor 14 controls the cleaning pipe 12 to rotate towards one side. This setting does not require the bottom of the regulation box 1 to be set too high, enabling the cleaning pipe 12 to effectively utilize the storage area inside the regulation box 1. At the same time, it is not easy for foreign objects to fall into the inclined cleaning pipe 12 at the top.

[0048] Connection valves 7 are fixedly connected to both ends of the water supply tank 6. A water supply pipe 13 is connected between the bottom of the cleaning pipe 12 and the water supply tank 6. The water supply pipe 13 is arranged in a spiral shape. An electromagnetic valve is connected between the water supply pipe 13 and the water supply tank 6.

[0049] During operation, a water pipe is required on the outer side of the connecting valve 7, and the other connecting valve 7 is connected to the drain pipe. There is a certain water pressure in the water pipe. The other connecting valve 7 is initially in a closed state. Water is injected into the designated water supply pipe 13 and the cleaning pipe 12 by opening the solenoid valve. After injecting an appropriate amount of water, the solenoid valve is closed. After the cleaning is completed, the solenoid valve is opened, the connecting valve 7 connected to the external water pipe is closed, and the connecting valve 7 connected to the drain pipe is opened. Under the action of gravity, the cleaned water is discharged from the drain pipe to complete the cleaning work. The spiral water supply pipe 13 can be appropriately extended to adapt to the lifting process of the cleaning pipe 12.

[0050] On one side of the rotation speed measurement module 17 facing the driven gear 21, a linkage arm 20 is fixedly connected. On the outer side of the driven gear 21, a fixed arm 22 is provided. On the outer side of the fixed arm 22, a connecting frame 24 is fixedly connected. Inside the control box 1, a plurality of sleeves 23 are fixedly connected. The connecting frame 24 is slidably connected to the sleeves 23, and a spring is fixedly connected between the connecting frame 24 and the sleeves 23.

[0051] During operation, in order to ensure the accuracy during the meshing process of the driving gear 19 and the driven gear 21, when the driving gear 19 moves away from the driven gear 21, the linkage arm 20 will move away from the connecting frame 24. The connecting frame 24 will push the fixed arm 22 outwards under the action of the spring, so that the arc-shaped fixed arm 22 fits with the driven gear 21, keeping the driven gear 21 in its original posture. The servo motor 18 will rotate the driving gear 19 for a full integer number of turns at the last stage of rotation, which is not only convenient for measuring the rotation speed, but also ensures that each driven gear 21 maintains the same state after stopping. When the driving gear 19 approaches the driven gear 21, the linkage arm 20 will squeeze the connecting frame 24, causing the connecting frame 24 and the fixed arm 22 to retract, allowing the driven gear 21 to be released from fixation and rotate normally. Through this setting, it is ensured that the driving gear 19 and the driven gear 21 can mesh and transmit power normally.

[0052] A method for testing the viscosity of unsaturated polyester resin, which is applicable to the above-mentioned device for testing the viscosity of unsaturated polyester resin. The specific method is as follows:

[0053] S1: Put the resin to be detected into the detection tank 2. The electric heating tray 5 is internally provided with an electric heating wire, which can uniformly heat the detection tank 2 from the bottom to keep the resin inside the detection tank 2 at a constant temperature.

[0054] S2: The electric heating tray 5 can move horizontally and up and down. Move the detection tank 2 to the bottom of the detection rotor 3 located in the middle, and then raise it to insert the detection rotor 3 into the resin in the detection tank 2. Control the detection rotor 3 located in the middle to rotate through the servo motor 18.

[0055] S3: Since the viscosity of the resin will cause resistance to the rotation of the detection rotor 3, resulting in the rotation speed of the detection rotor 3 being affected under the same power consumption of the servo motor 18. By monitoring the rotation speed of the detection rotor 3 in real time through the rotation speed measurement module 17 and comparing it with the normal rotation speed of the detection rotor 3 without the influence of the resin, the viscosity value of the resin can be calculated.

[0056] The rotation steps of the detection rotor 3 described in S2 are specifically as follows:

[0057] Q1: Restrict the positions of multiple detection rotors 3 through the restraint sleeve 26. When the detection rotor 3 needs to rotate, the lead screw nut mechanism 9 will first drive the entire servo motor 18 and the driving gear 19 to translate until the driving gear 19 and the corresponding driven gear 21 are aligned.

[0058] Q2: Then, the electric telescopic rod 16 controls the driving gear 19 to approach the driven gear 21 and mesh with it. Then, the servo motor 18 drives the driving gear 19 to rotate, thereby driving the driven gear 21 and the detection rotor 3 to rotate.

[0059] Q3: The rotation speed measurement module 17 measures the rotation speed of the driving gear 19. The driving gear 19 has the same rotation speed as the detection rotor 3, indirectly detecting the rotation speed of the detection rotor 3.

[0060] During operation, the resin to be tested is placed in the test tank 2 by adjusting the settings of the control box 1 and the electric heating tray 5. The electric heating tray 5 is internally equipped with heating wires and can uniformly heat the test tank 2 from the bottom, keeping the resin inside the test tank 2 at a constant temperature. The electric heating tray 5 can move horizontally and vertically, moving the test tank 2 to the bottom of the test rotor 3 located in the middle, and then rising to insert the test rotor 3 into the resin in the test tank 2. The test rotor 3 located in the middle is controlled by the servo motor 18 to rotate. Since the viscosity of the resin will bring resistance to the rotation of the test rotor 3, the rotation speed of the test rotor 3 is affected under the same power consumption of the servo motor 18. The rotation speed of the test rotor 3 is monitored in real time by the rotation speed measurement module 17, and by comparing the normal rotation speed of the test rotor 3 without the influence of resin, the viscosity value of the resin can be calculated. The number of test rotors 3 can be five, and the volume and surface area of the five test rotors 3 increase in sequence from one end to the other end. The test rotor 3 with a larger surface area is more affected by the viscosity and is used to test the resin solution at different viscosities. First, the resin solution is tested by the test rotor 3 located in the middle position. When the viscosity is detected for the first time, the position of the test tank 2 can be adjusted according to the viscosity value, and the electric heating tray 5 will transfer the test tank 2 to the bottom of another test rotor 3 for secondary detection, aiming to measure the viscosity of the resin more accurately. And since the viscosity of the resin changes with temperature, in order to detect the viscosity value of the resin at different temperatures, the temperature of the resin is changed by the electric heating tray 5, and then the position of the test tank 2 is changed by the electric heating tray 5. Through this setting, the test process is effectively simplified. Without frequently replacing the test rotor 3, the viscosity of the resin in different states can also be detected, and the test tank 2 does not need to be manually touched throughout the process, and the test tank 2 is always on the electric heating tray 5, ensuring the constant temperature of the internal resin, thus ensuring the accuracy of the test data;

[0061] The positions of multiple test rotors 3 are restricted by the restraint sleeve 26. When a certain test rotor 3 needs to rotate, the lead screw nut mechanism 9 will first drive the entire servo motor 18 and the driving gear 19 to translate until the driving gear 19 and the corresponding driven gear 21 are aligned. Then the electric telescopic rod 2 controls the driving gear 19 to approach the driven gear 21 and mesh with it. Then the driving gear 19 is driven to rotate by the servo motor 18, thereby driving the driven gear 21 and the test rotor 3 to rotate. The rotation speed measurement module 17 measures the rotation speed of the driving gear 19. The driving gear 19 has the same rotation speed as the test rotor 3, indirectly detecting the rotation speed of the test rotor 3. Through this setting, the function of controlling multiple test rotors 3 to work and monitoring the rotation speed of multiple test rotors 3 can be realized by using a set of test parts. Compared with using multiple sets of test parts, this setting also has a lower cost;

[0062] The lead screw nut mechanism 9 can drive the two electric telescopic rods 16 to translate along the length direction of the regulation box 1, so that the driving gear 19 is aligned with any driven gear 21. By extending the electric telescopic rod 16, the driving gear 19 is meshed and aligned with the aligned driven gear 21. It should be noted that during the regulation process, the driving gear 19 needs to be far away from the driven gear 21 first before the subsequent translation process can be carried out.

[0063] The electric heating tray 5 is controlled by the lead screw nut mechanism 2 to move horizontally along the length direction of the regulation box 1. Since the driving box 4 and the lead screw nut mechanism 2 are longer than the regulation box 1, the electric heating tray 5 can be moved to the outside of the regulation box 1, which is convenient for placing and taking out the test tank 2. The lifting of the electric heating tray 5 is controlled by the vertical electric telescopic rod 3 to extend and shorten.

[0064] Since the surface of the previous test rotor 3 is often covered with resin every time the test rotor 3 is switched, in order not to pollute the device, when the electric heating tray 5 is removed, the cleaning pipe 12 at the bottom moves upward and is sleeved outside the test rotor 3, so that the resin will not leak to the outside of the device. When the device is not working, the cleaning pipe 12 is also sleeved outside the test rotor 3 to reduce the influence of the external environment on the test rotor 3. When all the resin detection work is completed, an appropriate amount of cleaning water is injected into the inside of the cleaning pipe 12 through the water supply tank 6, so that the resin on the surface of the test rotor 3 slowly dissolves into the water. At the same time, the test rotor 3 is driven to rotate in turn to accelerate the dissolution speed, so that the resin on the surface of the test rotor 3 is peeled off cleanly. Then the water supply tank 6 recovers the cleaning water, and the electric heating tray 5 is used to dry the test rotor 3 at the bottom. Finally, the cleaning pipe 12 is sleeved outside the test rotor 3 again, thus realizing the full-automatic treatment of the used test rotor 3 and reducing the manual post-treatment steps.

[0065] The electric telescopic rod 10 controls the lifting of the support seat 11. When the support seat 11 is lowered to the bottom, the regulation motor 14 controls the cleaning pipe 12 to rotate to one side. This setting does not require the bottom of the regulation box 1 to be set too high, so that the cleaning pipe 12 effectively utilizes the storage area inside the regulation box 1. At the same time, the cleaning pipe 12 with an inclined top is not easy for foreign objects to fall into it.

[0066] A water pipe is required outside the connecting valve 7, and the other connecting valve 7 is connected to the drain pipe. There is a certain water pressure in the water pipe, and the other connecting valve 7 is in a closed state at the beginning. Water is injected into the specified water supply pipe 13 and the cleaning pipe 12 by opening the solenoid valve. After injecting an appropriate amount of water, the solenoid valve is closed. After the cleaning is completed, the solenoid valve is opened, the connecting valve 7 connected to the external water pipe is closed, and the connecting valve 7 connected to the drain pipe is opened. Under the action of gravity, the cleaned water is discharged from the drain pipe to complete the cleaning work. The spiral water supply pipe 13 can be appropriately extended to adapt to the lifting process of the cleaning pipe 12.

[0067] In order to ensure the accuracy during the meshing process of the driving gear 19 and the driven gear 21, when the driving gear 19 moves away from the driven gear 21, the linkage arm 20 will move away from the connecting frame 24, and the connecting frame 24 will push the fixed arm 22 outwards under the action of the spring, so that the arc-shaped fixed arm 22 fits with the driven gear 21, keeping the driven gear 21 in its original posture. The servo motor 18 will rotate the driving gear 19 for a full integer number of turns at the last stage of rotation, which not only facilitates the measurement of the rotational speed, but also ensures that each driven gear 21 maintains the same state after stopping. When the driving gear 19 approaches the driven gear 21, the linkage arm 20 will squeeze the connecting frame 24, causing the connecting frame 24 and the fixed arm 22 to retract backwards, allowing the driven gear 21 to be released from fixation and rotate normally. Through this setting, it is ensured that the driving gear 19 and the driven gear 21 can mesh and transmit power normally.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An unsaturated polyester resin viscosity testing device, characterized in that: The control box (1) comprises a control box (1), the front end of which is concave, a plurality of detection rotors (3) are arranged at the concave portion of the front end of the control box (1), the appearance and mass of the plurality of detection rotors (3) are different, the plurality of detection rotors (3) are linearly and equidistantly arranged, a detection tank (2) is arranged at the front end of the control box (1), the top of the detection tank (2) is open, an electric heating tray (5) for driving the detection tank (2) to move is arranged at the bottom of the detection tank (2), a servo motor (18) for controlling the rotation of the detection rotor (3) is arranged inside the control box (1), and a speed measurement module (17) for monitoring the speed of the detection rotor (3) is arranged inside the control box (1); The top of the detection rotor (3) is fixedly connected to a transmission shaft (25), the outer side of the transmission shaft (25) is sleeved with a restraining sleeve (26) fixedly connected to the control box (1), the top of the transmission shaft (25) is fixedly connected to a driven gear (21), the control box (1) is provided with a driving gear (19) inside, the servo motor (18) is fixedly connected to the output end of the driving gear (19), the bottom detection end of the speed measurement module (17) is connected to the middle of the top surface of the driving gear (19), and the inner side of the control box (1) is provided with a lead screw nut mechanism (9) for driving the servo motor (18) to move and two electric telescopic rods (16); The movable ends of the two electric telescopic rods (16) are respectively fixed to the speed measurement module (17) and the servo motor (18); the two electric telescopic rods (16) are arranged in parallel up and down; the lead screw nut mechanism (9) is fixed inside the control box (1) along the length direction of the control box (1); a series seat (15) is fixed between the two electric telescopic rods (16); and the movable end of the lead screw nut mechanism (9) is fixed to the series seat (15); A linkage arm (20) is fixedly connected to a side of the rotation speed measurement module (17) facing the driven gear (21); a fixed arm (22) is arranged on the outside of the driven gear (21); a connecting frame (24) is fixedly connected to the outside of the fixed arm (22); a plurality of sleeves (23) are fixedly connected to the inside of the control box (1); the connecting frame (24) is slidably connected to the sleeves (23); and a spring is fixedly connected between the connecting frame (24) and the sleeves (23).

2. The unsaturated polyester resin viscosity testing device according to claim 1, characterized in that: A drive box (4) is arranged at the front end of the control box (1); the length of the drive box (4) is longer than that of the control box (1); a lead screw nut mechanism 2 arranged along the length direction of the drive box (4) is installed at one end of the drive box (4) facing the control box (1); a vertically arranged electric telescopic rod 3 is fixedly connected to the movable end of the lead screw nut mechanism 2; and a vertically arranged electric telescopic rod 3 is fixedly connected to the movable end of the electric telescopic rod 3. The movable end of the electric telescopic rod 3 is fixedly connected to the electric heating tray (5).

3. The unsaturated polyester resin viscosity testing device according to claim 2, characterized in that: A plurality of inlet and outlet holes (8) are provided in a concave portion at the front end of the control box (1), and the positions of the inlet and outlet holes (8) are adapted to the positions of the plurality of detection rotors (3). A plurality of cleaning pipes (12) capable of being raised and lowered are provided inside the control box (1), and a water supply tank (6) for transmitting water to the plurality of cleaning pipes (12) is provided at the bottom of the front end of the control box (1).

4. The unsaturated polyester resin viscosity testing device according to claim 3, characterized in that: A support seat (11) is arranged below the cleaning pipe (12); a regulating motor (14) is fixedly connected to the top of the support seat (11); an output end of the regulating motor (14) is fixedly connected to the top of the cleaning pipe (12); and a vertically arranged electric telescopic rod (10) is fixedly connected to the top of the support seat (11).

5. The unsaturated polyester resin viscosity testing device according to claim 4, characterized in that: Both ends of the water supply box (6) are fixedly connected with connection valves (7), a water supply pipe (13) is connected between the bottom of the cleaning pipe (12) and the water supply box (6), the water supply pipe (13) is arranged in a spiral shape, and a solenoid valve is connected between the water supply pipe (13) and the water supply box (6).

6. A method for testing the viscosity of an unsaturated polyester resin, characterized in that: The method is applicable to an unsaturated polyester resin viscosity testing device as described in any one of claims 1 to 5 above, and the method is specifically: S1: The resin to be tested is placed in the test tank (2). The electric heating tray (5) has a built-in heating wire, which can evenly heat the test tank (2) from the bottom, so that the resin inside the test tank (2) maintains a constant temperature; S2: The electric heating tray (5) can move horizontally and vertically to move the test tank (2) to the bottom of the test rotor (3) located in the middle, and then rise to allow the test rotor (3) to be inserted into the resin of the test tank (2). The test rotor (3) located in the middle is controlled to rotate by the servo motor (18); S3: Since the viscosity of the resin will bring resistance to the rotation of the detection rotor (3), the rotation speed of the detection rotor (3) will be affected under the same power consumption of the servo motor (18). The rotation speed of the detection rotor (3) is monitored in real time by the rotation speed measurement module (17). By comparing the normal rotation speed of the detection rotor (3) without the influence of the resin, the viscosity value of the resin can be calculated.

7. The method for testing the viscosity of unsaturated polyester resin according to claim 6, characterized in that: The steps for detecting the rotation of the rotor (3) described in S2 are specifically as follows: Q1: The positions of the multiple detection rotors (3) are limited by the restraining sleeve (26). When the detection rotor (3) needs to rotate, the lead screw nut mechanism (9) first drives the entire servo motor (18) and the driving gear (19) to translate until the driving gear (19) and the corresponding driven gear (21) are aligned; Q2: Then the electric telescopic rod 2 (16) controls the driving gear (19) to approach the driven gear (21) and make them mesh with each other, and then the servo motor (18) drives the driving gear (19) to rotate, thereby driving the driven gear (21) and the detection rotor (3) to rotate; Q3: The speed measurement module (17) measures the speed of the driving gear (19). The driving gear (19) has the same speed as the detection rotor (3), and indirectly detects the speed of the detection rotor (3).

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