An online coating viscosity monitoring instrument

Abstract

This utility model discloses an online coating viscosity monitor, comprising: a base plate, a housing mounted on the top outer wall of the base plate, connecting pipes connected to the inner walls on both sides of the housing, and a fixed frame mounted on one end of the top outer wall of the base plate. It also includes: a motor mounted on the top outer wall of the fixed frame; a threaded rod rotatably mounted on the top outer wall of the fixed frame, with the motor output shaft connected to the top of the threaded rod; and a lifting assembly screwed onto the threaded rod. This online coating viscosity monitor can be connected to a coating delivery pipeline for online monitoring. The lifting assembly drives the viscometer to enter and exit the coating, while a surrounding component forms a localized independent space, blocking flow impact and improving measurement accuracy. After measurement, a transmission component drives a scraping component to clean the probe, preventing residue from affecting subsequent measurements. It requires no additional power, has a compact structure, and balances real-time monitoring with reliability, ensuring stable batch quality of coatings.

Description

Technical Field

[0001] This utility model relates to the field of viscosity monitoring technology, specifically to an online viscosity monitoring instrument for coatings. Background Technology

[0002] During the transportation of paint products through pipelines, viscosity testing is required for each batch to achieve online monitoring. Pipeline transportation is a critical node for batches of products to move from the production stage to storage, filling, or downstream processes, and is an important link to ensure product quality and guarantee the stability of subsequent applications.

[0003] Currently, when using a vibratory viscometer to test the viscosity of coatings, the bottom of the vibratory viscometer needs to be inserted into the coating. Its core principle is to use the sensor probe (usually a vibrating fork, vibrating rod, or vibrating plate) to directly contact the coating and use the damping force of the coating on the vibrating probe to calculate the viscosity.

[0004] Although the operation is relatively simple, the coating is in a flowing state in the pipeline, which will generate additional impact or drag force on the vibration sensor. This force is superimposed on the viscous damping force, causing the instrument to misjudge "damping increased" or "damping decreased", thus deviating from the true viscosity value. Utility Model Content

[0005] The purpose of this invention is to provide an online coating viscosity monitoring instrument to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online coating viscosity monitoring instrument, comprising: a base plate, a housing mounted on the top outer wall of the base plate, connecting pipes connected to the inner walls on both sides of the housing, and a fixed frame mounted on one end of the top outer wall of the base plate; further comprising: a motor mounted on the top outer wall of the fixed frame; a threaded rod rotatably mounted on the top outer wall of the fixed frame, with the motor output shaft connected to the top of the threaded rod; a lifting assembly screwed onto the threaded rod; a vibratory viscometer mounted at the bottom of the lifting assembly; surrounding assemblies rotatably mounted on both ends of the inner wall of the housing; a fixed plate mounted on one side outer wall of the fixed frame; a scraping assembly rotatably mounted on one end of the top outer wall of the fixed plate; a transmission assembly mounted on the scraping assembly; and the threaded rod being connected to the scraping assembly via the transmission assembly.

[0007] The lifting assembly includes a lifting block, a connecting plate installed on one side of the outer wall of the lifting block, and racks installed on both sides of the outer walls of the connecting plate.

[0008] The enclosure assembly includes a shaft, a gear mounted on one end of the shaft, and an arc-shaped plate mounted on the outer wall of the shaft.

[0009] The rack meshes with the corresponding gear.

[0010] The scraping assembly includes a rotating tube, an L-shaped rod mounted on the outer wall of the rotating tube, and a scraper mounted on the bottom of the L-shaped rod.

[0011] The transmission assembly includes a driven wheel mounted on the outer wall of the rotating tube, a driving wheel mounted on the outer wall of the threaded rod, and a belt that drives the driving wheel and the driven wheel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model discloses an online viscosity monitor for coatings, which can be connected to the coating delivery pipeline for online monitoring. The viscometer is driven to enter and exit the coating through a lifting component, while the surrounding component forms a local independent space to block the flow impact force and improve the measurement accuracy. After measurement, the scraping component is driven by the transmission component to clean the probe, avoiding residue from affecting the next measurement. No additional power is required, the structure is compact, and it balances the real-time performance and reliability of online monitoring, ensuring the stable quality of coating batches. Attached Figure Description

[0014] Figure 1 This is a first cross-sectional view of the present invention;

[0015] Figure 2 This is a second sectional view of the present invention;

[0016] Figure 3 This is an external structural view of the present invention;

[0017] Figure 4 This is a structural diagram of the lifting component of this utility model;

[0018] Figure 5 This is a structural diagram of the enclosure component of this utility model;

[0019] Figure 6 This is a structural diagram of the scraping assembly and transmission assembly of this utility model.

[0020] In the diagram: 1. Base plate; 2. Housing; 3. Connecting pipe; 4. Fixing frame; 5. Motor; 6. Threaded rod; 7. Lifting assembly; 701. Lifting block; 702. Connecting plate; 703. Rack; 8. Vibratory viscometer; 9. Enclosing assembly; 901. Rotating shaft; 902. Gear; 903. Arc plate; 10. Fixing plate; 11. Scraper assembly; 1101. Rotating pipe; 1102. L-shaped rod; 1103. Scraper; 12. Transmission assembly; 1201. Driven wheel; 1202. Driving wheel; 1203. Belt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6 The present invention provides an online coating viscosity monitoring instrument, comprising: a base plate 1, a housing 2 mounted on the top outer wall of the base plate 1, connecting pipes 3 connected to the inner walls on both sides of the housing 2, and a fixed frame 4 mounted on one end of the top outer wall of the base plate 1. It also includes: a motor 5 mounted on the top outer wall of the fixed frame 4; a threaded rod 6 rotatably mounted on the top outer wall of the fixed frame 4, with the output shaft of the motor 5 connected to the top of the threaded rod 6; a lifting assembly 7 screwed onto the threaded rod 6; a vibratory viscometer 8 mounted at the bottom of the lifting assembly 7; surrounding assemblies 9 rotatably mounted on both ends of the inner wall of the housing 2; a fixed plate 10 mounted on one side of the outer wall of the fixed frame 4; a scraping assembly 11 rotatably mounted on one end of the top outer wall of the fixed plate 10; and a transmission assembly 12 mounted on the scraping assembly 11. The threaded rod 6 is connected to the scraping assembly 11 via the transmission assembly 12.

[0023] It should be noted that: the two connecting pipes 3 can be connected to the paint delivery pipeline, allowing the paint to flow through the inside of the housing 2 during delivery. The motor 5 serves as the power source, driving the threaded rod 6 to rotate, causing the lifting assembly 7 screwed onto the threaded rod to move up and down, thereby controlling the insertion or withdrawal of the vibratory viscometer 8 into or out of the paint inside the housing 2. When the lifting assembly 7 moves, it simultaneously drives the surrounding assembly 9 inside the housing 2 to move, forming a local independent space during measurement to block the impact force of the paint flow. The threaded rod 6 drives the scraping assembly 11 through the transmission assembly 12, cleaning the viscometer probe after measurement to avoid paint residue affecting the next measurement.

[0024] In a preferred embodiment, the lifting assembly 7 includes a lifting block 701, a connecting plate 702 mounted on one side of the outer wall of the lifting block 701, and racks 703 mounted on both sides of the outer walls of the connecting plate 702.

[0025] It should be noted here that: the lifting block 701 is screwed to the threaded rod 6. When the threaded rod 6 rotates, the lifting block 701 moves up and down along the axial direction of the threaded rod, driving the vibratory viscometer 8 at the bottom to rise and fall synchronously, so as to realize the insertion or withdrawal of the probe into the coating; the connecting plate 702 connects the lifting block 701 and the rack 703, and transmits the lifting motion to the racks 703 on both sides, providing power for the movement of the surrounding component 9.

[0026] In a preferred embodiment, the enclosure component 9 includes a rotating shaft 901, a gear 902 mounted on one end of the rotating shaft 901, and an arc-shaped plate 903 mounted on the outer wall of the rotating shaft 901; the rack 703 meshes with the corresponding gear 902.

[0027] It should be noted that when the lifting assembly 7 lowers the vibratory viscometer 8 to insert into the coating, the racks 703 on both sides of the connecting plate 702 move down synchronously, driving the gear 902 that meshes with them to rotate. The gear 902 drives the rotating shaft 901 to rotate, causing the arc plate 903 to close towards the center of the housing 2, forming a local detection space. The vibratory viscometer 8 can detect the coating in the local detection space. The outer wall of the arc plate 903 can block the impact force of the coating flow. When the viscometer 8 rises and exits the measurement, the racks 703 move up, the gear 902 rotates counterclockwise, and the arc plate 903 opens, without obstructing the normal delivery of the coating.

[0028] In a preferred embodiment, the scraping assembly 11 includes a rotating tube 1101, an L-shaped rod 1102 mounted on the outer wall of the rotating tube 1101, and a scraper 1103 mounted on the bottom of the L-shaped rod 1102; the transmission assembly 12 includes a driven wheel 1201 mounted on the outer wall of the rotating tube 1101, a driving wheel 1202 mounted on the outer wall of the threaded rod 6, and a belt 1203 drivingly connecting the driving wheel 1202 and the driven wheel 1201.

[0029] It should be noted that when the threaded rod 6 rotates, the driving wheel 1202 on the outer wall drives the driven wheel 1201 on the rotating tube 1101 to rotate synchronously via the belt 1203, causing the rotating tube 1101 to rotate. The rotating tube 1101 drives the L-shaped rod 1102 and the scraper 1103 at the bottom to make a circular motion. When the vibratory viscometer 8 rises to the cleaning position, the scraper 1103 contacts the probe surface and scrapes off the residual coating. The cleaning action is linked to the lifting and lowering of the viscometer, requiring no additional power, ensuring that there is no residue on the probe, avoiding the impact of coating residue on the measurement accuracy of vibration damping, and ensuring the reliability of the next measurement.

[0030] Working principle:

[0031] I. Overall Work Process

[0032] Paint delivery base: Connecting pipe 3 is connected to the paint delivery pipeline, so that the paint flows through the inside of the box 2 during the delivery process, realizing the scenario adaptation of "online monitoring";

[0033] Power drive: After the motor 5 starts, the output shaft drives the threaded rod 6 inside the fixed frame 4 to rotate, providing power to the entire system;

[0034] Core linkage: The rotation of the threaded rod 6 synchronously realizes three actions - driving the lifting assembly 7 to move the vibratory viscometer 8 up and down (inserting / removing the coating);

[0035] A stable flow field is formed during measurement by linking the lifting component 7 with the surrounding component 9.

[0036] The scraping assembly 11 is driven by the transmission assembly 12 to clean the viscometer probe after measurement.

[0037] II. Operating Principle of the Lifting Component

[0038] The lifting assembly 7 is the core component for realizing "viscometer position adjustment" and "power transmission". Its working process is as follows:

[0039] When the threaded rod 6 rotates, the lifting block 701, which is screwed to it, moves up and down along the axial direction of the threaded rod.

[0040] The lifting block 701 drives the bottom vibratory viscometer 8 to move synchronously through the connecting plate 702: when it descends, the vibratory viscometer 8 is inserted into the paint inside the box 2 and enters the measurement state;

[0041] As it rises, the vibratory viscometer 8 exits the coating, ending the measurement and preparing for cleaning;

[0042] The racks 703 on both sides of the connecting plate 702 move synchronously with the lifting block 701, providing power for the movement of the surrounding component 9.

[0043] III. Flow field stabilization principle of surrounding components

[0044] Enclosing component 9 resolves "flow impact interference" through mechanical linkage. The specific process is as follows:

[0045] When the viscometer descends during measurement: the connecting plate 702 drives the rack 703 to move downward, the rack 703 meshes with the gear 902, and drives the gear 902 to rotate;

[0046] Gear 902 drives shaft 901 to rotate, causing arc plate 903 to close towards the center of housing 2;

[0047] After the two curved plates 903 are closed, a local detection space is formed inside the box 2, which surrounds the outside of the vibratory viscometer 8 probe and blocks the impact force of the paint flow. The paint flowing inside the box 2 flows along the space between the outer wall of the curved plate 903 and the inner wall of the box 2, reducing the interference of the impact force on the vibratory probe.

[0048] When the viscometer rises in a non-measuring state: the rack 703 moves upward, driving the gear 902 to rotate in the opposite direction, and the arc plate 903 opens to both sides, restoring the normal flow channel in the housing 2 and not obstructing the coating delivery.

[0049] IV. Cleaning Principle of Scraping and Transmission Components

[0050] This component solves the problem of "paint residue affecting subsequent measurements," and its working process is as follows:

[0051] Power transmission: When the threaded rod 6 rotates, the driving wheel 1202 on the outer wall drives the driven wheel 1201 to rotate through the belt 1203, thereby causing the rotating tube 1101 to rotate on the fixed plate 10;

[0052] Cleaning action: The rotating pipe 1101 drives the L-shaped rod 1102 and the scraper 1103 at the bottom to make a circular motion;

[0053] When the vibratory viscometer 8 rises to the cleaning position, the scraper 1103 just contacts the surface of the viscometer probe and scrapes off the residual paint;

[0054] Synergy Advantages: The cleaning action and the lifting and lowering of the vibratory viscometer 8 are synchronized and driven by the same motor, requiring no additional power source and ensuring no residue on the probe.

[0055] 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 online viscosity monitoring instrument for coatings, comprising: The base plate (1), the box (2) installed on the top outer wall of the base plate (1), the connecting pipe (3) connected to the inner walls on both sides of the box (2), and the fixing frame (4) installed on one end of the top outer wall of the base plate (1). The invention is characterized by further comprising: a motor (5) installed on the top outer wall of the fixed frame (4); a threaded rod (6) rotatably installed on the top outer wall of the fixed frame (4); the output shaft of the motor (5) is connected to the top of the threaded rod (6); a lifting assembly (7) is screwed onto the threaded rod (6); a vibratory viscometer (8) is installed at the bottom of the lifting assembly (7); a surrounding assembly (9) is rotatably installed at both ends of the inner wall of the box (2); a fixing plate (10) is installed on one side outer wall of the fixed frame (4); a scraping assembly (11) is rotatably installed at one end of the top outer wall of the fixing plate (10); a transmission assembly (12) is installed on the scraping assembly (11); and the threaded rod (6) is connected to the scraping assembly (11) through the transmission assembly (12).

2. The online viscosity monitoring instrument for coatings according to claim 1, characterized in that: The lifting assembly (7) includes a lifting block (701), a connecting plate (702) installed on one side of the outer wall of the lifting block (701), and a rack (703) installed on both sides of the outer wall of the connecting plate (702).

3. The online viscosity monitoring instrument for coatings according to claim 2, characterized in that: The enclosure assembly (9) includes a shaft (901), a gear (902) mounted on one end of the shaft (901), and an arc plate (903) mounted on the outer wall of the shaft (901).

4. The online viscosity monitoring instrument for coatings according to claim 3, characterized in that: The rack (703) meshes with the corresponding gear (902).

5. The online viscosity monitoring instrument for coatings according to claim 1, characterized in that: The scraper assembly (11) includes a rotating tube (1101), an L-shaped rod (1102) installed on the outer wall of the rotating tube (1101), and a scraper (1103) installed at the bottom of the L-shaped rod (1102).

6. The online viscosity monitoring instrument for coatings according to claim 5, characterized in that: The transmission assembly (12) includes a driven wheel (1201) mounted on the outer wall of the rotating tube (1101), a driving wheel (1202) mounted on the outer wall of the threaded rod (6), and a belt (1203) that drives the driving wheel (1202) and the driven wheel (1201).

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