A resin solids automatic titration analysis apparatus

Abstract

The utility model discloses a resin solid content automatic titration analysis equipment, include: base, rotate and install the rotating lever on the top outer wall of base, install motor and install the container on the rotating lever top on the bottom inner wall of base, still include: install the controller on the one end of the top outer wall of base, the other end of top outer wall of base is equipped with the support, and the support one end is equipped with the burette, the burette outer wall is equipped with the electromagnetic valve. The utility model discloses a resin solid content automatic titration analysis equipment, through the synergistic effect of container rotation and stirring subassembly, eliminate titrant local concentration difference, ensure that the reaction is even, potentiometric electrode moves with reciprocating assembly dynamic, avoid local measurement deviation, improve the accuracy of potential monitoring, and each component and controller form closed loop control, and the titration and stirring parameters are automatically regulated, and the end point is accurately judged, reduces artificial error, realizes resin solid content efficient, accurate automatic analysis.

Description

Technical Field

[0001] This utility model relates to the field of titration analysis technology, specifically to an automatic titration analysis device for resin solid content. Background Technology

[0002] Solid content directly reflects the proportion of effective components in a resin. For example, in products such as coatings and adhesives, excessively high solid content may lead to excessive viscosity and difficulty in application; while excessively low solid content may affect film-forming properties or bond strength. Titration analysis ensures that the solid content of each batch of resin meets the standard, avoiding product performance defects caused by fluctuations in composition.

[0003] In the titration reaction of resin solid content, the potential change of the solution is mainly monitored in real time by a potentiometer and converted into an electrical signal that can be recognized by the controller to reflect the progress of the titration reaction. In the current titration reaction, the electrode of the potentiometer is usually fixed in the solution. During the titration process, after the titrant is added, a high concentration area is easily formed locally, resulting in uneven ion distribution in the solution around the electrode. Since the electrode is fixed, the measured potential only reflects the local rather than the true state of the overall solution, which is prone to signal lag or fluctuation. Utility Model Content

[0004] The purpose of this invention is to provide an automatic titration analysis device for resin solid content to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic titration analysis device for resin solid content, comprising: a base, a rotating rod rotatably mounted on the outer wall of the top of the base, a motor mounted on the inner wall of the bottom of the base, and a container mounted on the top of the rotating rod; further comprising: a controller mounted on one end of the outer wall of the top of the base, a bracket mounted on the other end of the outer wall of the top of the base, a burette mounted on one end of the bracket, a solenoid valve mounted on the outer wall of the burette, a stirring assembly rotatably mounted on the outer wall of the burette, a reciprocating assembly rotatably mounted on one end of the outer wall of the top of the base, a transmission assembly mounted on the outer wall of the rotating rod, a limiting frame provided above the base, a moving plate slidably connected to the inner wall of the limiting frame, a potentiometer mounted on one end of the outer wall of the top of the moving plate, and an internal toothed ring mounted on the inner wall of the container.

[0006] The stirring assembly includes a gear and multiple equidistant stirring rods mounted on the outer wall of the bottom of the gear.

[0007] The reciprocating assembly includes a driven rod, a turntable mounted on top of the driven rod, and a traction rod rotatably mounted on an eccentric position on top of the turntable.

[0008] The end of the traction rod away from the turntable is rotatably connected to the end of the moving plate.

[0009] The transmission assembly includes a driving wheel mounted on the outer wall of the rotating rod, a driven wheel mounted on the outer wall of the driven rod, and a belt connecting the driving wheel and the driven wheel.

[0010] The motor, solenoid valve, and potentiometer are all connected to the controller via signal lines.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses an automatic titration analysis device for resin solid content. Through the coordinated action of container rotation and stirring components, local concentration differences of the titrant are eliminated, ensuring uniform reaction. The potentiometer electrode moves dynamically with the reciprocating components, avoiding local measurement deviations and improving the accuracy of potential monitoring. All components and the controller form a closed-loop control, automatically adjusting titration and stirring parameters, accurately determining the endpoint, reducing human error, and achieving efficient and accurate automated analysis of resin solid content. Attached Figure Description

[0013] Figure 1 This is an external structural view of the present invention;

[0014] Figure 2 This is a structural diagram of the stirring assembly of this utility model;

[0015] Figure 3 This is a structural diagram of the reciprocating component and transmission component of this utility model.

[0016] In the diagram: 1. Base; 2. Rotating rod; 3. Motor; 4. Container; 5. Controller; 6. Support; 7. Burette; 8. Solenoid valve; 9. Stirring assembly; 901. Gear; 902. Stirring rod; 10. Reciprocating assembly; 1001. Driven rod; 1002. Turntable; 1003. Traction rod; 11. Transmission assembly; 1101. Driving wheel; 1102. Driven wheel; 1103. Belt; 12. Limit frame; 13. Moving plate; 14. Potentiometer; 15. Internal gear ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides an automatic titration analysis device for resin solid content, comprising: a base 1, a rotating rod 2 rotatably mounted on the top outer wall of the base 1, a motor 3 mounted on the bottom inner wall of the base 1, and a container 4 mounted on the top of the rotating rod 2. It also includes: a controller 5 mounted on one end of the top outer wall of the base 1, a bracket 6 mounted on the other end of the top outer wall of the base 1, a burette 7 mounted on one end of the bracket 6, a solenoid valve 8 mounted on the outer wall of the burette 7, a stirring assembly 9 rotatably mounted on the outer wall of the burette 7, a reciprocating assembly 10 rotatably mounted on one end of the top outer wall of the base 1, a transmission assembly 11 mounted on the outer wall of the rotating rod 2, a limiting frame 12 above the base 1, a moving plate 13 slidably connected to the inner wall of the limiting frame 12, a potentiometer 14 mounted on one end of the top outer wall of the moving plate 13, and an internal toothed ring 15 mounted on the inner wall of the container 4.

[0019] It should be noted here that: Controller 5 connects to and coordinates the control of motor 3, solenoid valve 8 and potentiometer 14 through signal lines to achieve fully automated control of the entire process;

[0020] The resin solution is poured into container 4, and the titrant is loaded into burette 7. The solenoid valve 8 on the outer wall of burette 7 controls the amount and rate of titrant addition. The motor 3 is used as the power source to drive the rotating rod 2 to rotate, which in turn drives the container 4 at the top to rotate synchronously. When container 4 rotates, the resin solution inside will form a stable circulation due to centrifugal force. After the titrant dripped into the solution by burette 7 enters the solution, it will be quickly carried and diffused by the circulation, avoiding the formation of local high concentration areas due to direct dripping due to gravity. During the rotation of container 4, the stirring component 9 can be driven to rotate through the internal toothed ring 15, which can enhance the mixing of the solution that passes the position of stirring component 9 as container 4 rotates. The combination of the two significantly improves the contact efficiency between titrant and resin solution, ensuring uniform reaction. When the rotating rod 2 rotates, the power is transmitted to the reciprocating component 10 through the transmission component 11, so that the reciprocating component 10 pulls the moving plate 13 to make linear reciprocating motion within the limit frame 12, thereby driving the potentiometer 14 electrode on the moving plate 13 to move back and forth in the solution, ensuring that the measurement reflects the overall potential change of the solution.

[0021] In a preferred embodiment, the stirring assembly 9 includes a gear 901 and a plurality of equally spaced stirring rods 902 mounted on the bottom outer wall of the gear 901.

[0022] It should be noted here that the gear 901 of the stirring assembly 9 meshes with the internal gear ring 15 on the inner wall of the container 4. When the container 4 rotates with the rotating rod 2, the internal gear ring 15 drives the gear 901 to rotate synchronously, which in turn drives the bottom stirring rod 902 to rotate, stirring the resin solution and titrant in the container 4, eliminating local concentration differences, ensuring uniform reaction, and providing a stable measurement environment for the potentiometer 14.

[0023] In a preferred embodiment, the reciprocating assembly 10 includes a driven rod 1001, a turntable 1002 mounted on the top of the driven rod 1001, and a traction rod 1003 rotatably mounted on the top of the turntable 1002 at an eccentric position; the end of the traction rod 1003 away from the turntable 1002 is rotatably connected to one end of the moving plate 13.

[0024] It should be noted that the driven rod 1001 of the reciprocating assembly 10 rotates under the drive of the transmission assembly 11, causing the top turntable 1002 to rotate synchronously. Since the traction rod 1003 is connected to the eccentric position of the turntable 1002, the circular motion of the turntable 1002 is converted into the reciprocating push-pull action of the traction rod 1003, which provides power for the linear reciprocating motion of the moving plate 13 and realizes the dynamic movement of the potentiometer 14 electrode.

[0025] In a preferred embodiment, the transmission assembly 11 includes a drive wheel 1101 mounted on the outer wall of the rotating rod 2, a driven wheel 1102 mounted on the outer wall of the driven rod 1001, and a belt 1103 that drives the drive wheel 1101 and the driven wheel 1102.

[0026] It should be noted here that: when the rotating rod 2 rotates in the transmission assembly 11, it drives the driving wheel 1101 on the outer wall to rotate, and transmits the power to the driven wheel 1102 through the belt 1103, so that the driven wheel 1102 drives the driven rod 1001 of the reciprocating assembly 10 to rotate synchronously, thereby realizing the power linkage between the rotating rod 2 and the reciprocating assembly 10, and ensuring the coordination of the rotation of the container 4, the movement of the potentiometer 14 electrode, and the operation of the stirring assembly 9.

[0027] In a preferred embodiment, the motor 3, the solenoid valve 8, and the potentiometer 14 are all connected to the controller 5 via signal lines.

[0028] It should be noted here that: motor 3, solenoid valve 8, and potentiometer 14 form a closed-loop control system with controller 5 via signal lines.

[0029] Potentiometer 14 monitors the change in solution potential in real time and feeds the signal back to controller 5;

[0030] The controller 5 adjusts the speed of the motor 3 (to control the rotation and stirring intensity of the container) and the opening of the solenoid valve 8 (to adjust the amount of titrant added) according to a preset threshold (such as the potential jump point), accurately determines the titration endpoint, and realizes fully automated analysis.

[0031] Working principle: The resin solution is placed in container 4, and the titrant is loaded into burette 7. The equipment is powered by motor 3, and the controller 5 coordinates the control of motor 3, solenoid valve 8, and potentiometer 14 to form an automated closed-loop system. Motor 3 drives rotor 2 to rotate, which in turn drives container 4 at the top to rotate synchronously. At the same time, the power is transmitted to reciprocating assembly 10 through transmission assembly 11, realizing the coordinated action of "container rotation - stirring and mixing - electrode movement - titration control".

[0032] The titrant in burette 7 is dispensed into the resin solution in container 4 by means of a solenoid valve 8, which controls the dispensing rate and dosage. As container 4 rotates, the internal resin solution circulates due to centrifugal force, rapidly diffusing the titrant and preventing excessively high local concentrations. Simultaneously, the internal toothed ring 15 on the inner wall of container 4 meshes with the gear 901 of the stirring assembly 9, driving the stirring rod 902 to rotate, thus enhancing the stirring of the solution and ensuring uniform mixing of the titrant and the resin solution.

[0033] When the rotating rod 2 rotates, the driving wheel 1101 of the transmission assembly 11 drives the driven wheel 1102 and the driven rod 1001 of the reciprocating assembly 10 to rotate through the belt 1103, so that the eccentric traction rod 1003 on the turntable 1002 pulls the moving plate 13 to slide back and forth in the limit frame 12, thereby driving the electrode of the potentiometer 14 to move back and forth in the solution, comprehensively monitoring the overall potential change of the solution, and avoiding local signal deviation of the fixed electrode;

[0034] Potentiometer 14 feeds back the potential signal to controller 5 in real time. Controller 5 automatically adjusts the speed of motor 3 to control the stirring intensity and the opening of solenoid valve 8 to regulate the amount of titrant added based on preset thresholds such as potential jump points, thus accurately determining the titration endpoint. Finally, the resin solid content is calculated based on the amount of titrant consumed, completing the automated analysis.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic titration analysis device for resin solid content, comprising: The base (1), the rotating rod (2) mounted on the outer wall of the top of the base (1), the motor (3) mounted on the inner wall of the bottom of the base (1), and the container (4) mounted on the top of the rotating rod (2); The invention is characterized by further comprising: a controller (5) installed on one end of the top outer wall of the base (1), a bracket (6) installed on the other end of the top outer wall of the base (1), a burette (7) installed on one end of the bracket (6), a solenoid valve (8) installed on the outer wall of the burette (7), a stirring assembly (9) rotatably installed on the outer wall of the burette (7), a reciprocating assembly (10) rotatably installed on one end of the top outer wall of the base (1), a transmission assembly (11) installed on the outer wall of the rotating rod (2), a limiting frame (12) provided above the base (1), a moving plate (13) slidably connected to the inner wall of the limiting frame (12), a potentiometer (14) installed on one end of the top outer wall of the moving plate (13), and an internal toothed ring (15) installed on the inner wall of the container (4).

2. A resin solids auto-titration analysis apparatus according to claim 1, wherein: The stirring assembly (9) includes a gear (901) and a plurality of stirring rods (902) that are equidistantly distributed on the bottom outer wall of the gear (901).

3. The apparatus of claim 1, wherein: The reciprocating assembly (10) includes a driven rod (1001), a turntable (1002) mounted on top of the driven rod (1001), and a traction rod (1003) rotatably mounted on an eccentric position on top of the turntable (1002).

4. A resin solids auto-titration analysis apparatus according to claim 3, wherein: The end of the traction rod (1003) away from the turntable (1002) is rotatably connected to the end of the moving plate (13).

5. A resin solids auto-titration analysis apparatus according to claim 3, wherein: The transmission assembly (11) includes a drive wheel (1101) mounted on the outer wall of the rotating rod (2), a driven wheel (1102) mounted on the outer wall of the driven rod (1001), and a belt (1103) that drives the drive wheel (1101) and the driven wheel (1102).

6. The apparatus of claim 1, wherein: The motor (3), solenoid valve (8) and potentiometer (14) are all connected to the controller (5) via signal lines.

Images