A testing device for the preparation of low-shrinkage UV moisture dual-curing adhesives

Abstract

This invention relates to a testing device for the preparation of low-shrinkage UV moisture-curing adhesives, belonging to the field of adhesive testing technology. The device includes a worktable, a controller, a testing cup, and a storage container fixedly connected to the worktable. The top of the storage container is hinged to a lid. The device also includes: a shearing mechanism fixedly connected to the lid for cutting the adhesive; a pressure-reducing mechanism fixedly connected to the top of the worktable for reducing the internal air pressure of the testing cup; a switching mechanism; a linkage mechanism; and a conveying mechanism. This invention, through the coordinated use of the switching mechanism, the pressure-reducing mechanism, and the conveying mechanism, enables multiple tests of low-shrinkage UV moisture-curing adhesives under identical conditions. This avoids the impact of manual operation on testing accuracy due to pressure differences within the testing cup. Furthermore, it allows for automatic switching of the testing cup, reducing the workload for personnel and improving testing accuracy.

Description

Technical Field

[0001] This invention belongs to the field of adhesive testing technology, specifically relating to a testing device for the preparation of low-shrinkage UV moisture dual-curing adhesives. Background Technology

[0002] Adhesive performance testing is a systematic process involving various testing methods to evaluate its suitability, strength, durability, and processability under different conditions. The testing methods and specific steps vary depending on the adhesive type, application scenario (structural bonding, sealing, assembly, labeling, etc.), and the standards followed (GB, ISO, ASTM, etc.). Adhesive performance testing includes viscosity (flowability) testing, which aims to assess the flow resistance of the adhesive in its application state. Adhesive viscosity directly affects coating, spraying, and filling process performance. The fundamental purpose of adhesive flowability testing is to ensure that the adhesive can be correctly and effectively applied in specific application scenarios, ultimately achieving the expected bonding, sealing, filling, or other functional properties. Its role is integral to all aspects of adhesive research and development, production control, process selection, quality assurance, and final application results, making it an indispensable part of adhesive performance characterization and quality management. Accurate measurement and control of flowability can significantly improve production efficiency, product yield, and the reliability of the final product.

[0003] Currently, when using the flow cup method to test the viscosity of adhesives, the test cup is manually sealed and placed under the test container. The internal air pressure of the test cup is then reduced by manual extraction. After that, the test container is opened to allow the adhesive to flow into the test cup under pressure. The amount of adhesive entering the test cup at a specified time and pressure is recorded. Multiple tests are required, and the average value must be calculated to ensure the accuracy of the test data and the accuracy of the performance evaluation of the adhesive. However, when conducting multiple tests, the testing personnel need to frequently stop the machine to manually replace the test cup and frequently manually reduce the internal air pressure of the test cup, which increases the workload of the testing personnel. Furthermore, the manual operation is prone to differences in the internal air pressure of the test cup during multiple tests, resulting in errors in the test data. Based on this, a testing device for the preparation of low-shrinkage UV moisture dual-curing adhesives is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a reasonably designed testing device for the preparation of low-shrinkage UV moisture dual-curing adhesives in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A testing device for preparing low-shrinkage UV moisture-curing adhesives includes a worktable, a controller, a testing cup, and an adhesive storage container fixedly connected to the worktable. The top of the adhesive storage container is hinged with a lid. The device also includes:

[0007] A shearing mechanism fixedly connected to the can lid for cutting adhesive;

[0008] A pressure-reducing mechanism fixedly connected to the top of the workbench to reduce the internal air pressure of the test cup;

[0009] A switching mechanism fixedly connected within the workbench for switching the testing cups;

[0010] A linkage mechanism fixedly connected to the outer surface of the shearing mechanism for agitating the adhesive;

[0011] A conveying mechanism fixedly connected within the workbench for transporting the test cups.

[0012] As a further optimization of the present invention, the pressure reducing mechanism includes an electric push rod fixedly connected to the top of the workbench, a piston cylinder fixedly connected to the top of the workbench, a piston rod slidably connected inside the piston cylinder, a suction pipe fixedly connected to one end of the piston cylinder, a gas supply pipe fixedly connected to the other end of the piston cylinder, and a one-way exhaust hole opened at the end of the piston cylinder located in the suction pipe.

[0013] As a further optimization of the present invention, the switching mechanism includes a stepper motor fixedly connected to the workbench, the output end of the stepper motor being fixedly connected to a connecting shaft, and a switching ring being fixedly connected to the outer surface of the connecting shaft.

[0014] As a further optimization of the present invention, the switching ring is sleeved on the outer surface of the detection cup.

[0015] As a further optimization of the present invention, a sealing groove is provided on the top of the detection cup.

[0016] As a further optimization of the present invention, the conveying mechanism includes a conveying ring fixedly connected to the workbench, a sealing cover fixedly connected to the conveying ring, a sealing airbag fixedly connected to the bottom of the sealing cover, the detection cup being able to slide within the conveying ring, the conveying ring being configured as an "L" shape, and the rim of the detection cup being located within the conveying ring and slidably connected to the conveying ring.

[0017] As a further optimization of the present invention, the other end of the suction pipe is fixedly connected to the sealing cover, the other end of the air supply pipe is fixedly connected to the sealing airbag, the sealing groove is adapted to the sealing airbag, the sealing cover is fixedly connected to the discharging end of the glue storage tank, and the discharging end of the glue storage tank is threadedly connected to a leak detection tube.

[0018] As a further optimization of the present invention, the shearing mechanism includes a drive motor fixedly connected to the top of the can lid, a rotating shaft fixedly connected to the output end of the drive motor, the rotating shaft passing through the can lid and being rotatably connected to the can lid in a sealed manner, and a shearing wheel fixedly connected to the bottom of the rotating shaft.

[0019] As a further optimization of the present invention, the linkage mechanism includes an electric telescopic rod fixedly connected to the top of the inner part of the can lid, a lifting plate fixedly connected to the output end of the electric telescopic rod, a rotating sleeve rotatably connected to the inner surface of the lifting plate, a stirring frame fixedly connected to the outer surface of the rotating sleeve, a first magnetic plate fixedly connected to the outer surface of the rotating sleeve, a fixing cover fixedly connected to the outer surface of the rotating shaft, a second magnetic plate fixedly connected to the inner surface of the fixing cover, the second magnetic plate having opposite magnetic properties to the first magnetic plate, an L-shaped fixing frame fixedly connected to the inner bottom of the can lid, an isolation cover fixedly connected to the end of the L-shaped fixing frame, and the isolation cover being located between the first magnetic plate and the second magnetic plate.

[0020] As a further optimization of the present invention, the controller is fixedly connected to the top of the workbench, a ramp is fixedly connected inside the workbench, an electronic scale is fixedly connected inside the workbench, the top of the electronic scale is flush with the top of the ramp, a glue-adding tube is fixedly connected to the top of the can lid, an air pump is fixedly connected to the top of the can lid, an exhaust pipe is fixedly connected to the top of the air pump, and an observation window is provided on the side wall of the glue storage can.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. By using a switching mechanism, a pressure reducing mechanism, and a conveying mechanism in combination, this invention enables multiple tests of low-shrinkage UV moisture-curing adhesives under the same conditions. This avoids the impact of manual operation on the accuracy of the test due to differences in internal air pressure in the test cup. Furthermore, it enables automatic switching of the test cup, reducing the burden on personnel and improving the accuracy of the test.

[0023] 2. By incorporating a shearing mechanism, this invention enables the device to detect the flowability of low-shrinkage UV moisture dual-curing adhesives under various conditions, thereby obtaining tack data of the low-shrinkage UV moisture dual-curing adhesives under different conditions. This facilitates the determination of the performance of the low-shrinkage UV moisture dual-curing adhesives, expands the application range of the device, and makes it more convenient to use.

[0024] 3. The present invention, through the setting of the pressure-reducing mechanism, enables the pressure-reducing mechanism to reduce the internal pressure of the detection cup while simultaneously injecting gas into the sealing airbag, causing the sealing airbag to expand. This results in the outer surface of the sealing airbag tightly fitting the inner surface of the sealing groove, achieving a thorough seal at the contact point between the detection cup and the sealing cover. This prevents leakage of internal air pressure in the detection cup, thereby ensuring that the internal air pressure of the detection cup reaches the specified pressure and improving the accuracy of the detected data.

[0025] 4. This invention, through the combined use of a shearing mechanism, a linkage mechanism, and an air pump, achieves agitation of the low-shrinkage UV moisture-curing adhesive at the start of testing. Simultaneously, the air pump extracts gas from the storage tank, allowing the gas in the low-shrinkage UV moisture-curing adhesive to be expelled, preventing residual air bubbles from affecting the accuracy of subsequent tests. After testing, when cleaning the storage tank, cleaning fluid is added through the glue-adding tube. Then, the drive motor is activated to agitate the cleaning fluid and scrape the inner surface of the storage tank to clean it. The wastewater after cleaning is discharged through the glue outlet of the storage tank, ensuring the cleanliness of the storage tank and avoiding any impact on the next test. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the back of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall three-dimensional cross-sectional structure of the present invention;

[0029] Figure 4 This is a frontal three-dimensional structural diagram of the conveying mechanism and the pressure reducing mechanism of the present invention;

[0030] Figure 5 This is a three-dimensional bottom view of the conveying mechanism and pressure reducing mechanism of the present invention;

[0031] Figure 6 This is a three-dimensional, bottom-view structural diagram of the switching mechanism of the present invention;

[0032] Figure 7 This is a three-dimensional partial cross-sectional structural diagram of the linkage mechanism of the present invention.

[0033] In the diagram: 1. Workbench; 2. Controller; 3. Glue storage tank; 4. Tank lid; 5. Slope; 6. Electronic scale; 7. Glue application hose; 8. Air pump; 9. Exhaust pipe; 10. Shearing mechanism; 101. Drive motor; 102. Rotating shaft; 103. Shearing wheel; 11. Conveying mechanism; 111. Conveying ring; 112. Sealing cover; 113. Sealing airbag; 12. Leak detection tube; 13. Pressure reducing mechanism; 131. Electric push rod; 132. Piston cylinder; 133. Piston rod; 134. 135. Suction pipe; 136. Gas supply pipe; 14. One-way exhaust port; 15. Switching mechanism; 141. Stepper motor; 142. Connecting shaft; 143. Switching ring; 144. Detection cup; 145. Sealing groove; 15. Linkage mechanism; 151. Electric telescopic rod; 152. Lifting plate; 153. Rotating sleeve; 154. First magnetic plate; 155. Isolation cover; 156. Fixing cover; 157. Second magnetic plate; 158. Stirring frame; 159. L-shaped fixing frame; 16. Observation window. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] Example: Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, a testing device for preparing low-shrinkage UV moisture-curing adhesive includes a workbench 1, a controller 2, and a testing cup 144, as well as an adhesive storage tank 3 fixedly connected to the workbench 1. A testing leak tube 12 is threadedly connected to the discharge end of the adhesive storage tank 3. The testing leak tube 12 can be replaced with a corresponding size according to the type of adhesive. An electric valve is installed inside the discharge end of the adhesive storage tank 3. A can lid 4 is hinged to the top of the adhesive storage tank 3. The controller 2 is fixedly connected to the top of the workbench 1. A ramp 5 and an electronic scale 6 are fixedly connected inside the workbench 1. The top of the electronic scale 6 is flush with the top of the ramp 5. An adhesive application tube 7 is fixedly connected to the top of the can lid 4. An adhesive application tube 7 is installed inside the adhesive application tube 7. The container has an electric valve, and an air pump 8 is fixedly connected to the top of the container lid 4. An exhaust pipe 9 is fixedly connected to the top of the air pump 8. An observation window 16 is provided on the side wall of the adhesive storage container 3. The observation window 16 is designed to facilitate observation of the remaining amount of adhesive inside the adhesive storage container 3. The air pump 8 is used to extract the gas inside the adhesive storage container 3, so that the gas in the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage container 3 is discharged, avoiding the presence of residual air bubbles in the low-shrinkage UV moisture dual-curing adhesive that may affect the accuracy of subsequent tests. The ramp 5, together with the electronic scale 6, is used to detect the weight of the adhesive inside the test cup 144, thereby determining the flowability of the low-shrinkage UV moisture dual-curing adhesive during the test time.

[0036] A shearing mechanism 10 for cutting adhesive is fixedly connected to the can lid 4. The shearing mechanism 10 includes a drive motor 101 fixedly connected to the top of the can lid 4. A rotating shaft 102 is fixedly connected to the output end of the drive motor 101. The rotating shaft 102 passes through the can lid 4 and is rotatably connected to the can lid 4 in a sealed manner. A shearing wheel 103 is fixedly connected to the bottom of the rotating shaft 102. The drive motor 101, air pump 8, electronic scale 6 and electric valve are all electrically connected to the controller 2 and controlled by the controller 2.

[0037] A linkage mechanism 15 for stirring the adhesive is fixedly connected to the outer surface of the shearing mechanism 10. The linkage mechanism 15 includes an electric telescopic rod 151 fixedly connected to the top of the inner part of the can lid 4. The electric telescopic rod 151 is electrically connected to the controller 2 and controlled by the controller 2. A lifting plate 152 is fixedly connected to the output end of the electric telescopic rod 151. A rotating sleeve 153 is rotatably connected to the inner surface of the lifting plate 152. A stirring frame 158 is fixedly connected to the outer surface of the rotating sleeve 153. A first magnetic plate 154 is fixedly connected to the outer surface of the rotating sleeve 153. A fixing cover 156 is fixedly connected to the outer surface of the rotating shaft 102. A second magnetic plate 157 is fixedly connected to the inner surface of the fixing cover 156. The second magnetic plate 157 has opposite magnetic properties to the first magnetic plate 154. An L-shaped fixing frame 159 is fixedly connected to the inner bottom of the can lid 4. An isolation cover 155 is fixedly connected to the end of the L-shaped fixing frame 159. The isolation cover 155 is located between the first magnetic plate 154 and the second magnetic plate 157.

[0038] In use, the first magnetic plate 154 is facing the second magnetic plate 157, and the electric telescopic rod 151 is in its longest extended state. The electric valve in the glue discharge end of the glue storage tank 3 is closed. Then, sufficient low-shrinkage UV moisture-curing adhesive is added to the glue storage tank 3 through the glue adding tube 7. After adding, the electric valve in the glue adding tube 7 is closed, and then the air pump 8 and drive motor 101 are started, causing the drive motor 101 to drive the rotating shaft 102 to rotate, which in turn drives the shearing wheel 103 to rotate. During this process, since the first magnetic plate 154 is facing the second magnetic plate 157, the rotating shaft 102 will drive the fixed cover 156 to rotate, which in turn drives the rotating sleeve 153 to rotate through the first magnetic plate 154 and the second magnetic plate 157, causing the stirring frame 158 to rotate. This, in turn, works with the shearing wheel 103 to stir the low-shrinkage UV moisture-curing adhesive. At the same time, the air pump 8 extracts the gas inside the glue storage tank 3, making the inside of the glue storage tank 3... The gas in the low-shrinkage UV moisture dual-curing adhesive is discharged to avoid residual air bubbles affecting the accuracy of subsequent tests. After the agitation and degassing are completed, the air pump 8 and drive motor 101 are turned off, and the electric telescopic rod 151 is started, causing the electric telescopic rod 151 to retract and pull the lifting plate 152 upward, which in turn causes the rotating sleeve 153 to move upward, so that the first magnetic plate 154 is disengaged from the direct alignment with the second magnetic plate 157. After the drive motor 101 stops rotating, since the flowability of the low-shrinkage UV moisture dual-curing adhesive needs to be tested under external atmospheric pressure, it is necessary to ensure that the air pressure inside the glue storage tank 3 is the same as the external atmospheric pressure. Therefore, after the agitation and degassing are completed and the drive motor 101 stops rotating, the electric valve in the glue adding tube 7 is opened to make the air pressure inside the glue storage tank 3 the same as the external atmospheric pressure, so that the low-shrinkage UV moisture dual-curing adhesive in the glue storage tank 3 flows naturally under external atmospheric pressure.

[0039] After the inspection is completed, when it is necessary to clean the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage tank 3, start the electric telescopic rod 151 so that the electric telescopic rod 151 is extended to its longest state. At this time, the bottom of the stirring rack 158 is in contact with the inner bottom of the adhesive storage tank 3. Then, close the electric valve inside the adhesive storage tank 3 and add cleaning fluid into the adhesive storage tank 3 through the glue adding tube 7. Then, start the drive motor 101 so that the rotating shaft 102 drives the shearing wheel 103 to rotate, which in turn drives the linkage mechanism 15 to rotate. This allows the stirring rack 158 to stir the cleaning fluid while scraping the inner surface of the adhesive storage tank 3, thereby improving the cleaning efficiency of the low-shrinkage UV moisture dual-curing adhesive adhering to the inner wall of the adhesive storage tank 3.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a switching mechanism 14 for switching test cups 144 is fixedly connected inside the workbench 1. The switching mechanism 14 includes a stepper motor 141 fixedly connected inside the workbench 1. The stepper motor 141 is electrically connected to and controlled by the controller 2. A connecting shaft 142 is fixedly connected to the output end of the stepper motor 141. A switching ring 143 is fixedly connected to the outer surface of the connecting shaft 142. The switching ring 143 is sleeved on the outer surface of the test cup 144. A conveying mechanism 11 for conveying the test cups 144 is fixedly connected inside the workbench 1. 1 includes a conveying ring 111 fixedly connected to the workbench 1, a sealing cover 112 fixedly connected to the conveying ring 111, the sealing cover 112 fixedly connected to the discharging end of the glue storage tank 3, a sealing airbag 113 fixedly connected to the bottom of the sealing cover 112, a sealing groove 145 opened on the top of the detection cup 144, the sealing groove 145 is adapted to the sealing airbag 113, the conveying ring 111 is set as "L" shaped, the cup edge of the detection cup 144 is located on the conveying ring 111 and is slidably connected to the conveying ring 111, and the detection cup 144 can slide inside the conveying ring 111.

[0041] After the low-shrinkage UV moisture dual-curing adhesive added to the adhesive storage tank 3 is de-bubbled, multiple test cups 144 are placed in the conveying ring 111, and the test cups 144 are positioned in the switching ring 143. Then, the stepper motor 141 is started to rotate the connecting shaft 142, which in turn pushes the test cups 144 to move through the switching ring 143. The test cups 144 are first moved to the electronic scale 6 on the same side via the ramp 5 on one side. At this time, the switching ring 143 no longer supports the test cups 144, and the electronic scale 6 supports and weighs the initial weight of the test cups 144. After weighing, the test cups 144 will be pushed into the sealing cover 112 under the action of the switching ring 143, so that the sealing airbag 113 enters the sealing groove 145 to seal the contact area between the test cups 144 and the sealing cover 112.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a pressure-reducing mechanism 13 for reducing the internal air pressure of the detection cup 144 is fixedly connected to the top of the workbench 1. The pressure-reducing mechanism 13 includes an electric push rod 131 fixedly connected to the top of the workbench 1. The electric push rod 131 is electrically connected to and controlled by the controller 2. A piston cylinder 132 is fixedly connected to the top of the workbench 1. A piston rod 133 is slidably connected inside the piston cylinder 132. One end of the piston cylinder 132 is fixedly connected to a suction pipe 134, and the other end of the piston cylinder 132 is fixedly connected to a gas supply pipe. Pipe 135 and piston cylinder 132 are located at one end of the suction pipe 134 and have a one-way exhaust port 136. A one-way valve is installed in the one-way exhaust port 136, so that the gas drawn by the piston cylinder 132 from the sealing cover 112 can only be discharged through the one-way exhaust port 136. The other end of the suction pipe 134 is fixedly connected to the sealing cover 112. A one-way valve is installed in the suction pipe 134, so that the gas flow can only flow from the sealing cover 112 to the piston cylinder 132. The other end of the gas supply pipe 135 is fixedly connected to the sealing airbag 113.

[0043] After the weighed test cup 144 is positioned directly below the sealing cover 112 and the sealing airbag 113 enters the sealing groove 145, the electric push rod 131 is activated, causing the piston rod 133 to move to the right. This causes the piston cylinder 132 to draw gas from inside the test cup 144 through the suction pipe 134, creating a negative pressure state in the test cup 144. This continues until the electric push rod 131 is fully extended. During this process, the rightward movement of the piston rod 133 causes gas located to the right side of the piston rod 133 to be introduced into the sealing airbag 113 through the gas delivery pipe 135, causing the sealing airbag 113 to expand from its normal state, thus sealing the gasbag. The outer surface of the sealing bladder 113 is tightly fitted to the inner surface of the sealing groove 145, thereby fully sealing the contact area between the test cup 144 and the sealing cover 112 and preventing leakage of the internal air pressure of the test cup 144. This ensures that the internal air pressure of the test cup 144 can reach the specified air pressure, improving the accuracy of the test data. Then, the electric valve in the discharge end of the adhesive storage tank 3 can be opened, allowing the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage tank 3 to enter the test cup 144 under the action of air pressure until the specified test time is reached. At this time, the electric valve in the discharge end of the adhesive storage tank 3 can be closed.

[0044] The specific working principle of this invention is as follows:

[0045] First detection mode: In use, the first magnetic plate 154 is facing the second magnetic plate 157, and the electric telescopic rod 151 is in its longest extended state. The electric valve in the glue discharge end of the glue storage tank 3 is closed. Then, sufficient low-shrinkage UV moisture dual-curing adhesive is added to the glue storage tank 3 through the glue addition tube 7, ensuring that the low-shrinkage UV moisture dual-curing adhesive does not completely submerge the stirring rack 158. After adding the adhesive, the electric valve in the glue addition tube 7 is closed, and then the air pump 8 and drive motor 101 are started. The drive motor 101 drives the rotating shaft 102 to rotate, which in turn drives the shearing wheel 103 to rotate. During this process, since the first magnetic plate 154 is facing the second magnetic plate 157, the rotating shaft 102 will drive the fixed cover 156 to rotate, which in turn drives the rotating sleeve 153 to rotate through the first magnetic plate 154 and the second magnetic plate 157, causing the stirring rack 158 to rotate. This, in turn, works with the shearing wheel 103 to agitate the low-shrinkage UV moisture dual-curing adhesive. At the same time, the air pump 8 extracts the adhesive. The gas inside the adhesive storage tank 3 is expelled, allowing the gas in the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage tank 3 to be discharged, avoiding residual air bubbles in the low-shrinkage UV moisture dual-curing adhesive from affecting the accuracy of subsequent tests. After the agitation and venting are completed, the air pump 8 and drive motor 101 are turned off, and the electric telescopic rod 151 is started, causing the electric telescopic rod 151 to retract, pulling the lifting plate 152 upward, which in turn causes the rotating sleeve 153 to move upward, causing the first magnetic plate 154 to disengage from the direct alignment with the second magnetic plate 157. After the drive motor 101 stops rotating, since the flowability of the low-shrinkage UV moisture dual-curing adhesive needs to be tested under external atmospheric pressure, it is necessary to ensure that the air pressure inside the adhesive storage tank 3 is the same as the external atmospheric pressure. Therefore, after the agitation and venting are completed and the drive motor 101 stops rotating, the electric valve in the adhesive adding tube 7 is opened, so that the air pressure inside the adhesive storage tank 3 is the same as the external atmospheric pressure, allowing the low-shrinkage UV moisture dual-curing adhesive in the adhesive storage tank 3 to flow naturally under external atmospheric pressure.

[0046] After the low-shrinkage UV moisture dual-curing adhesive added to the adhesive storage tank 3 is de-bubbled, multiple test cups 144 are placed in the conveying ring 111 and positioned in the switching ring 143. Then, the stepper motor 141 is started to rotate the connecting shaft 142, which in turn pushes the test cups 144 to move through the switching ring 143. The test cups 144 are first moved to the electronic scale 6 on the same side via the ramp 5 on one side. The electronic scale 6 weighs the initial weight of the test cups 144. After weighing, the test cups 144 are pushed into the sealing cover 112 under the action of the switching ring 143, so that the sealing airbag 113 enters the sealing groove 145 to seal the contact area between the test cups 144 and the sealing cover 112.

[0047] After the weighed test cup 144 is positioned directly below the sealing cover 112 and the sealing airbag 113 enters the sealing groove 145, the electric push rod 131 is activated, causing the piston rod 133 to move to the right. This allows the piston cylinder 132 to draw gas from inside the test cup 144 through the suction pipe 134, creating a negative pressure state in the test cup 144. This continues until the electric push rod 131 is fully extended. During this process, the rightward movement of the piston rod 133 causes gas located to the right side of the piston rod 133 to enter the sealing airbag 113 through the gas supply pipe 135. This causes the sealing airbag 113 to expand from its normal state, resulting in a tight seal between the outer surface of the sealing airbag 113 and the inner surface of the sealing groove 145. This achieves a complete seal at the contact point between the test cup 144 and the sealing cover 112, preventing leakage of internal air pressure from the test cup 144. Ensuring that the internal air pressure of the test cup 144 reaches the specified pressure improves the accuracy of the test data. Then, the electric valve in the discharge end of the adhesive storage tank 3 can be opened, allowing the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage tank 3 to enter the test cup 144 under air pressure until the specified test time is reached. At this time, the electric valve in the discharge end of the adhesive storage tank 3 can be closed, realizing the automatic sealing of the test leak tube 12 when the specified test time is reached. This avoids the low-shrinkage UV moisture dual-curing adhesive dripping into the test cup 144 due to the test device not operating in time, which would affect the test accuracy. It also avoids the waste of resources caused by the dripping of low-shrinkage UV moisture dual-curing adhesive when switching test cups 144, while reducing the burden of cleaning the test device and improving the test efficiency.

[0048] At this point, the electric push rod 131 can be activated to move the piston rod 133 to the left, so that the gas inside the detection cup 144 drawn by the piston cylinder 132 is discharged through the one-way exhaust port 136, and the piston cylinder 132 will draw the gas inside the sealing airbag 113 through the gas supply pipe 135, so that the sealing airbag 113 returns to the normal state until the electric push rod 131 is completely shortened.

[0049] At this point, the stepper motor 141 can be started to rotate the connecting shaft 142, which in turn pushes the test cup 144 containing low-shrinkage UV moisture dual-curing adhesive located below the sealing cover 112 through the switching ring 143. The test cup 144 is first moved to the electronic scale 6 on the same side by the ramp 5 on the other side. The electronic scale 6 weighs the test cup 144 containing low-shrinkage UV moisture dual-curing adhesive. Based on the initial weight of the test cup 144, the weight of the low-shrinkage UV moisture dual-curing adhesive that enters the test cup 144 under a certain air pressure and a certain time is determined. The viscosity of the low-shrinkage UV moisture dual-curing adhesive is calculated based on the size of the test leak tube 12. This process is repeated multiple times to ensure that the air pressure inside the test cup 144 is equal in each test.

[0050] After the inspection is completed, when it is necessary to clean the low-shrinkage UV moisture dual-curing adhesive inside the adhesive storage tank 3, the electric telescopic rod 151 is activated to extend to its longest position. At this time, the bottom of the stirring rack 158 is in contact with the inner bottom of the adhesive storage tank 3. Then, the electric valve inside the adhesive storage tank 3 is closed, and cleaning fluid is added into the adhesive storage tank 3 through the glue adding tube 7. Then, the drive motor 101 can be activated, so that the rotating shaft 102 drives the shearing wheel 103 to rotate, which in turn drives the linkage mechanism 15 to rotate. This allows the stirring rack 158 to stir the cleaning fluid while scraping the inner surface of the adhesive storage tank 3, thereby improving the cleaning efficiency of the low-shrinkage UV moisture dual-curing adhesive adhering to the inner wall of the adhesive storage tank 3.

[0051] Second detection mode: Based on the first detection mode, when detecting the viscosity of the low-shrinkage UV moisture dual-curing adhesive, the first magnetic plate 154 is disengaged from the direct alignment with the second magnetic plate 157. When the detection tube 12 starts to leak adhesive, the drive motor 101 is started to drive the rotating shaft 102 to rotate, which in turn drives the shearing wheel 103 to rotate. The shearing wheel 103 agitates and shears the low-shrinkage UV moisture dual-curing adhesive. The speed of the drive motor 101 is set to detect the viscosity of the low-shrinkage UV moisture dual-curing adhesive under shear force. This expands the detection range of the device and enables the acquisition of viscosity data of the low-shrinkage UV moisture dual-curing adhesive under different conditions, which is convenient for determining the performance of the low-shrinkage UV moisture dual-curing adhesive.

[0052] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A testing device for preparing low-shrinkage UV moisture-curing adhesive, comprising a workbench (1), a controller (2), and a testing cup (144), and an adhesive storage container (3) fixedly connected to the workbench (1), wherein the top of the adhesive storage container (3) is hinged with a lid (4), characterized in that, Also includes: A shearing mechanism (10) for cutting adhesive is fixedly connected to the can lid (4). The shearing mechanism (10) includes a drive motor (101) fixedly connected to the top of the can lid (4). A rotating shaft (102) is fixedly connected to the output end of the drive motor (101). The rotating shaft (102) passes through the can lid (4) and is rotatably connected to the can lid (4). A shearing wheel (103) is fixedly connected to the bottom of the rotating shaft (102). A pressure-reducing mechanism (13) fixedly connected to the top of the workbench (1) for reducing the internal air pressure of the detection cup (144). A switching mechanism (14) for switching the detection cup (144) is fixedly connected inside the workbench (1). The switching mechanism (14) includes a stepper motor (141) fixedly connected inside the workbench (1). A connecting shaft (142) is fixedly connected to the output end of the stepper motor (141). A switching ring (143) is fixedly connected to the outer surface of the connecting shaft (142). The switching ring (143) is sleeved on the outer surface of the detection cup (144). A linkage mechanism (15) fixedly connected to the outer surface of the shearing mechanism (10) for stirring the adhesive; A conveying mechanism (11) is fixedly connected inside the workbench (1) for conveying the test cup (144). The conveying mechanism (11) includes a conveying ring (111) fixedly connected inside the workbench (1). A sealing cover (112) is fixedly connected to the conveying ring (111). A sealing airbag (113) is fixedly connected to the bottom of the sealing cover (112). The conveying ring (111) is set to an "L" shape. The rim of the test cup (144) is located on the conveying ring (111) and is slidably connected to the conveying ring (111).

2. The testing device for preparing low-shrinkage UV moisture dual-curing adhesives according to claim 1, characterized in that: The pressure reducing mechanism (13) includes an electric push rod (131) fixedly connected to the top of the workbench (1). A piston cylinder (132) is fixedly connected to the top of the workbench (1). A piston rod (133) is slidably connected inside the piston cylinder (132). One end of the piston cylinder (132) is fixedly connected to a suction pipe (134). The other end of the piston cylinder (132) is fixedly connected to a gas supply pipe (135). A one-way exhaust hole (136) is opened at one end of the piston cylinder (132) located in the suction pipe (134).

3. The testing device for preparing low-shrinkage UV moisture-curing adhesives according to claim 2, characterized in that: The top of the test cup (144) is provided with a sealing groove (145).

4. The testing device for preparing low-shrinkage UV moisture dual-curing adhesives according to claim 3, characterized in that: The other end of the suction pipe (134) is fixedly connected to the sealing cover (112), the other end of the air supply pipe (135) is fixedly connected to the sealing airbag (113), the sealing groove (145) is adapted to the sealing airbag (113), the sealing cover (112) is fixedly connected to the glue discharge end of the glue storage tank (3), and the glue discharge end of the glue storage tank (3) is threadedly connected to the leak detection pipe (12).

5. The testing device for preparing low-shrinkage UV moisture-curing adhesives according to claim 1, characterized in that: The linkage mechanism (15) includes an electric telescopic rod (151) fixedly connected to the top of the inner part of the can lid (4). The output end of the electric telescopic rod (151) is fixedly connected to a lifting plate (152). The inner surface of the lifting plate (152) is rotatably connected to a rotating sleeve (153). The outer surface of the rotating sleeve (153) is fixedly connected to a stirring frame (158). The outer surface of the rotating sleeve (153) is fixedly connected to a first magnetic plate (154). The outer surface of the rotating shaft (102) is fixedly connected to a fixing cover (156). The inner surface of the fixing cover (156) is fixedly connected to a second magnetic plate (157). The second magnetic plate (157) has opposite magnetic properties to the first magnetic plate (154). The inner bottom of the can lid (4) is fixedly connected to an L-shaped fixing frame (159). The end of the L-shaped fixing frame (159) is fixedly connected to an isolation cover (155). The isolation cover (155) is located between the first magnetic plate (154) and the second magnetic plate (157).

6. The testing device for preparing low-shrinkage UV moisture dual-curing adhesives according to claim 1, characterized in that: The controller (2) is fixedly connected to the top of the workbench (1). A ramp (5) is fixedly connected inside the workbench (1). An electronic scale (6) is fixedly connected inside the workbench (1). The top of the electronic scale (6) is flush with the top of the ramp (5). A glue-adding tube (7) is fixedly connected to the top of the can lid (4). An air pump (8) is fixedly connected to the top of the can lid (4). An exhaust pipe (9) is fixedly connected to the top of the air pump (8). An observation window (16) is provided on the side wall of the glue storage tank (3).

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