Resin water bath heating heat release curve detection device

Abstract

The invention discloses a resin water bath heating heat release curve detection device, which is applied to the technical field of resin water bath heating, and comprises a cabinet body, a water bath mechanism, a control instrument, a plurality of test tubes and a detection mechanism, the water bath mechanism, the control instrument and the detection mechanism are arranged on the cabinet body, the control instrument is arranged on one side of the water bath mechanism, and the test tubes are arranged on the test tubes. The detection mechanism is located above the water bath mechanism, and the test tube is arranged on the detection mechanism; the detection mechanism comprises a first supporting frame, a plurality of first temperature detection assemblies, a plurality of viscosity detection assemblies, a plurality of sealing assemblies and a second temperature detection assembly, each first temperature detection assembly comprises a first air cylinder and a first thermocouple, each first air cylinder is fixed to the bottom of the corresponding sliding block, and the output end of each first air cylinder is fixedly connected with a clamp; the thermocouple I is arranged on the clamp; the viscosity detection assembly comprises a second air cylinder, a motor, a supporting ring and a detection rod. According to the invention, the accuracy and convenience of the detection result of the resin water-bath heating heat release curve can be improved.

Description

Technical Field

[0001] This invention relates to the field of resin water bath testing technology, specifically to a device for detecting the heating and exothermic curves of a resin water bath. Background Technology

[0002] Thermosetting resins, such as epoxy resins and unsaturated polyester resins, exhibit a significant exothermic effect during their curing process. Detecting their exothermic curves through water bath heating is a key method for studying curing kinetics, determining gel time and peak temperature, and thus optimizing the curing process.

[0003] Currently, this testing mainly relies on traditional manual methods, where resin samples are placed in non-standard containers such as beakers, placed in a constant-temperature water bath, and temperature sensors are manually inserted by operators to record temperature changes. However, this method is difficult to maintain consistency because the insertion position, depth, and orientation of the sensors depend on human experience. This results in significant deviations and low repeatability of data from different experiments, posing a challenge to the accurate extraction of curing characteristic parameters and failing to meet the high standards of data accuracy and efficiency required by modern materials research and quality control.

[0004] Therefore, it is necessary to provide a device for detecting the exothermic curve of resin water bath heating in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a resin water bath heating exothermic curve detection device, which can improve the accuracy and convenience of resin water bath heating exothermic curve detection results, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a resin water bath heating exothermic curve detection device, comprising a cabinet, a water bath mechanism, a controller, several test tubes and a detection mechanism, wherein the water bath mechanism, the controller and the detection mechanism are all disposed on the cabinet, the controller is disposed on one side of the water bath mechanism, the detection mechanism is located above the water bath mechanism, and the test tubes are disposed on the detection mechanism; The detection mechanism includes a support frame, several temperature detection components, several viscosity detection components, several sealing components, and a second temperature detection component. The first temperature detection component includes a cylinder and a thermocouple. The cylinder is fixed to the bottom of the slider, and a clamp is fixedly connected to the output end of the cylinder. The thermocouple is mounted on the clamp. The viscosity detection assembly includes a second cylinder, a motor, a support ring, and a detection rod. The second cylinder is fixed to the bottom of the slider and located on one side of the first cylinder. The output end of the second cylinder is fixedly connected to a second connecting seat. The support ring is rotatably connected to the bottom of the second connecting seat, and the detection rod is fixed to the bottom of the support ring. A camera and a sealing cover are fixedly connected to the inner wall of the water bath.

[0007] According to the above technical solution, the water bath mechanism includes a water bath, a water circulation component, a movable frame one, a movable frame two, and several pressure detection components. The water circulation component is located below the water bath. The bottom of the water bath is provided with a drain outlet, a return water outlet, and a water inlet. The return water outlet and the water inlet are located at opposite ends of the bottom of the water bath. The water circulation component includes a circulation pump and two sets of stirring fans. The circulation pump is provided with a water inlet end and a water outlet end. The water inlet end is connected to the return water outlet pipe, and the water outlet end is connected to the water inlet pipe. The end of the water inlet away from the water outlet end is fixedly connected to an outlet pipe, and the outlet pipe is L-shaped. Two sets of bases are fixedly connected to the bottom of the water bath. One set of bases is located on the side of the return water inlet, and the other set of bases is located on the side of the outlet water pipe. The two sets of stirring fans are respectively mounted on the bases and rotatably connected to the bases.

[0008] According to the above technical solution, both the movable frame one and the movable frame two are provided with several storage openings. Several pressure detection components are respectively disposed in the storage openings of the movable frame two near the bottom of the test tube, protruding from the storage openings. Each pressure detection component includes a limiting seat, a pressure sensor, and a pressure ring. The limiting seat is disposed in the storage opening and is engaged with the movable frame two. A detection groove is provided on the side of the limiting seat facing the test tube. The pressure sensor is disposed in the detection groove. A connecting seat one is provided on the top of the pressure sensor. Several springs are fixedly connected to the top of the connecting seat one. The pressure ring is disposed on the top of the springs and fixedly connected to the springs. The pressure ring is located in the detection groove and is slidably connected to the limiting seat.

[0009] According to the above technical solution, the support frame is fixed to the top of the cabinet, the top of the support frame is provided with a sliding groove, the top of the sliding groove is provided with a limiting groove, a plurality of sliders are provided inside the sliding groove, the top of the sliders is provided with a limiting block, and the shape of the limiting block matches the limiting groove.

[0010] According to the above technical solution, the support ring is sleeved around the thermocouple, the motor is fixed to the top of the connecting seat, and the output end of the motor passes through the connecting seat and is connected to the support ring via gear transmission.

[0011] According to the above technical solution, the sealing assembly includes a stopper cap, a limiting cap, and a rotating ring. The stopper cap is disposed at the top of the test tube, the limiting cap is snapped onto the top of the stopper cap, the rotating ring is rotatably disposed at the top of the limiting cap, the detection rod passes through the rotating ring and the limiting cap, and the detection rod is slidably connected to the rotating ring. The limiting cap is provided with a central hole and a fan-shaped through hole. The thermocouple is located in the central hole and is slidably connected to the limiting cap. The detection rod is located in the fan-shaped through hole.

[0012] According to the above technical solution, the second temperature detection component includes a bracket and a second thermocouple. The bracket is fixed to the top of the cabinet and located on one side of the water bath. The second thermocouple is mounted on the bracket.

[0013] According to the above technical solution, the sealing cover is disposed around the camera, and the end of the sealing cover away from the water bath is made transparent.

[0014] According to the above technical solution, the cabinet has several storage areas inside, and cabinet doors are provided on the side of the cabinet, with the cabinet doors corresponding to the positions of the storage areas.

[0015] According to the above technical solution, the controller is signal-connected to the water bath mechanism and the detection mechanism. The controller is equipped with a detection system. The controller obtains the resin temperature detected by thermocouple 1, the water temperature in the water bath, the weight of the test tube detected by the pressure sensor, and the image captured by the camera through the detection system. Then, by acquiring the image captured by the camera, the controller controls the thermocouple 1 and the detection rod to be inserted into the resin in each test tube to a consistent depth, thereby realizing the simultaneous and standardized detection of the resin temperature and curing status in multiple test tubes. At the same time, the camera can also acquire the reaction state of the resin in the test tube, thereby ensuring the accuracy of the acquired resin water bath heating and exothermic curve. It can also realize the detection of resin curing status and state, so as to standardize the detection of resin water bath heating and exothermic curve.

[0016] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention, by setting up a water bath mechanism and a detection mechanism, can collect numerical temperature data in real time. During the resin reaction process, a small mechanical stimulus is actively applied to the curing resin by extending and retracting a cylinder. At the same time, the pressure sensor reading fluctuations caused by this stimulus and the physical displacement of the test tube monitored by the camera are monitored. When the resin cures, the adhesion between it and the detection rod will cause significant pressure fluctuations or test tube movement caused by the active detection. The curing state is automatically determined objectively and quantitatively. The detection logic is upgraded from passive recording to active interaction and intelligent judgment. It can achieve standardized synchronous and in-situ acquisition of temperature and viscosity data for the same sample in a single experiment, directly obtain the temperature-time-viscosity correspondence, accurately determine key process parameters such as gel point and curing endpoint, and greatly reduce human intervention and subjective misjudgment, thus achieving standardized detection. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic front sectional view of the overall structure of the present invention; Figure 3 This is a side sectional view of the overall structure of the present invention; Figure 4 This is the invention Figure 2 Front view diagram; Figure 5 This is the invention Figure 3 Enlarged structural diagram of region A in the middle; Figure 6 This is the invention Figure 3 Enlarged structural diagram of region B in the middle; Figure 7 This is the invention Figure 3 Enlarged structural diagram of region C in the middle; Figure 8 This is a partial structural diagram of the detection mechanism of the present invention; Figure 9 This is the invention Figure 8 A magnified schematic diagram of the D region; In the picture: 1. Cabinet body; 2. Cabinet door; 3. Water bath mechanism; 31. Water bath pot; 32. Drain outlet; 33. Circulation pump; 331. Water inlet; 332. Water outlet; 34. Base; 35. Stirring fan; 36. Water outlet pipe; 37. Movable frame one; 38. Movable frame two; 39. Pressure detection assembly; 391. Limit seat; 392. Pressure sensor; 393. Connecting seat one; 394. Spring; 395. Pressure ring; 4. Controller; 5. Test tubes; 6. Testing mechanism; 61. Support frame one; 62. Slider; 63. Limiting groove; 64. Limiting block; 65. Temperature detection component one; 651. Cylinder one; 652. Clamp; 653. Thermocouple one; 66. Viscosity detection component; 661. Cylinder two; 662. Connecting seat two; 663. Motor; 664. Support ring; 665. Detection rod; 67. Sealing component; 671. Plug; 672. Limiting cover; 673. Rotating ring; 68. Temperature detection component two; 681. Bracket; 682. Thermocouple two; 69. Camera. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-9The present invention provides a technical solution: a resin water bath heating exothermic curve detection device, comprising a cabinet 1, a water bath mechanism 3, a controller 4, several test tubes 5, and a detection mechanism 6. The water bath mechanism 3, the controller 4, and the detection mechanism 6 are all mounted on the cabinet 1. The controller 4 is mounted on one side of the water bath mechanism 3, and the detection mechanism 6 is located above the water bath mechanism 3. The water bath mechanism 3 is used to provide water bath conditions. The test tubes 5 are mounted on the detection mechanism 6 and are used to store the resin to be tested. The detection mechanism 6 is used to perform standardized water bath exothermic detection of the resin.

[0020] Specifically, such as Figure 1 and Figure 2 As shown, the cabinet 1 has several storage areas inside, and the side of the cabinet 1 has cabinet doors 2, which correspond to the positions of the storage areas.

[0021] Specifically, such as Figures 2-5 As shown, the water bath mechanism 3 includes a water bath 31, a water circulation component, a movable frame 1 37, a movable frame 2 38, and several pressure detection components 39. The water circulation component is located below the water bath 31. The bottom of the water bath 31 is provided with a drain outlet 32, a return water outlet, and a water inlet. The return water outlet and the water inlet are located at opposite ends of the bottom of the water bath 31. The water circulation component includes a circulation pump 33 and two sets of stirring fans 35. The circulation pump 33 is provided with a water inlet end 331 and a water outlet end 332. The water inlet end 331 is connected to the return water outlet pipe, and the water outlet end 332 is connected to the water inlet pipe. The end of the water inlet away from the water outlet end 332 is fixedly connected to a water outlet pipe 36, which is L-shaped. Two sets of bases 34 are fixedly connected to the bottom of the water bath 31. One set of bases 34 is located on the side of the return water inlet, and the other set of bases 34 is located on the side of the outlet pipe 36. Two sets of stirring fans 35 are respectively mounted on the bases 34 and rotatably connected to the bases 34. When the circulation pump 33 is started, it can draw out the water inside the water bath 31 and then re-inject it. During this process, the water inside the water bath 31 is in a flowing state, which can drive the two sets of stirring fans 35 to rotate, further promoting the flow of water inside the water bath 31 and improving the uniformity of water temperature inside the water bath 31.

[0022] It should be noted that the water bath 31 is equipped with a heating resistance wire, which is an existing structure and will not be described in detail here; it is not shown in the figure.

[0023] Furthermore, such as Figure 2 and Figure 3As shown, movable rack 37 is a single-layer structure and is movably placed on top of water bath 31. Movable rack 38 is a multi-layer structure and is placed inside water bath 31. Both movable rack 37 and movable rack 38 have several storage openings. When using movable rack 37 to place test tube 5, test tube 5 is placed directly in the storage opening of the single-layer movable rack 37. When using movable rack 38, test tube 5 is placed through the multi-layer storage opening of movable rack 39.

[0024] like Figure 5 As shown, several pressure detection components 39 are respectively disposed in the storage opening near the bottom of the test tube 5 on the second movable frame 38, protruding from the storage opening. Each pressure detection component 39 includes a limiting seat 391, a pressure sensor 392, and a pressure ring 395. The limiting seat 391 is disposed in the storage opening and is engaged with the second movable frame 38. A detection groove is provided on the side of the limiting seat 391 facing the test tube 5. The pressure sensor 392 is disposed in the detection groove. A connecting seat 393 is provided on the top of the pressure sensor 392, and the top of the connecting seat 393 is fixedly connected to... There are several springs 394, and a pressure ring 395 is fixedly connected to the top of the springs 394. The pressure ring 395 is located in the detection groove and is slidably connected to the limiting seat 391. When the test tube 5 is placed in the storage opening of the movable frame 38, the bottom of the test tube 5 contacts the pressure ring 395. Under the gravity of the test tube 5 and the pressure ring 395, the springs 394 are squeezed downward, so that the springs 394 apply force to the connecting seat 393, so that the pressure sensor 392 can detect the pressure value. The specific value is affected by the weight of the test tube 5 and the resin inside.

[0025] Specifically, such as Figure 2 , Figure 3 and Figure 6 As shown, the detection mechanism 6 includes a support frame 61, several temperature detection components 65, several viscosity detection components 66, several sealing components 67, and a second temperature detection component 68. The support frame 61 is fixed to the top of the cabinet 1. A sliding groove is provided on the top of the support frame 61, and a limiting groove 63 is provided on the top of the sliding groove. Several sliders 62 are provided inside the sliding groove, and a limiting block 64 is provided on the top of the slider 62. The slider 62 can move horizontally and vertically within the sliding groove. The limiting block 64 matches the shape of the limiting groove 63. When it is necessary to move the position of the slider 62, the limiting block 64 is pulled to drive the slider 62 upward, and then the limiting block 64 is moved horizontally to make the slider 62 reach the appropriate position. Then the limiting block 64 is lowered, and the limiting block 64 is embedded in the limiting groove 63 to achieve positioning.

[0026] Furthermore, such as Figure 2 , Figure 3 , Figure 7 and Figure 9As shown, the temperature detection component 65 includes a cylinder 651 and a thermocouple 653. The cylinder 651 is fixed to the bottom of the slider 62, and a clamp 652 is fixedly connected to the output end of the cylinder 651. The thermocouple 653 is set on the clamp 652. The cylinder 651 extends and retracts, which can synchronously raise and lower the thermocouple 653, thereby adjusting the vertical detection position of the thermocouple 653. The thermocouple 653 is used to detect the temperature of the resin in the test tube 5 during water bath testing.

[0027] Furthermore, such as Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, the viscosity detection assembly 66 includes a second cylinder 661, a motor 663, a support ring 664, and a detection rod 665. The second cylinder 661 is fixed to the bottom of the slider 62 and located on one side of the first cylinder 651. The output end of the second cylinder 661 is fixedly connected to a second connecting seat 662. The support ring 664 is rotatably connected to the bottom of the second connecting seat 662. The detection rod 665 is fixed to the bottom of the support ring 664. The support ring 664 is sleeved around the first thermocouple 653. The motor 663 is fixed to the top of the second connecting seat 662. The output end of the motor 663 passes through the second connecting seat 662 and is gear-driven to the support ring 664. When the second cylinder 661 extends or retracts, it can synchronously raise and lower the detection rod 665, thereby adjusting the height of the bottom of the detection rod 665. When the motor 663 starts, it can drive the support ring 664 to rotate through gear transmission, thereby adjusting the horizontal position of the bottom of the detection rod 665. The detection rod 665 is used to detect the reaction of the resin inside the test tube 5 and obtain the viscosity of the resin.

[0028] Furthermore, such as Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, the sealing assembly 67 includes a stopper 671, a limiting cap 672, and a rotating ring 673. The stopper 671 is disposed on the top of the test tube 5 and is used to form a relatively sealed space inside the test tube 5. The limiting cap 672 is snapped onto the top of the stopper 671. The rotating ring 673 is rotatably disposed on the top of the limiting cap 672. The detection rod 665 passes through the rotating ring 673 and the limiting cap 672 and is slidably connected to the rotating ring 673. The limiting cap 672 is provided with a central hole and a fan-shaped through hole. Thermocouple 653 is located in the central hole and is slidably connected to the limiting cap 672. The detection rod 665 is located in the fan-shaped through hole and can rotate relative to the limiting cap 672 within a certain angle range in the fan-shaped through hole.

[0029] Furthermore, such as Figure 4As shown, the temperature detection component 68 includes a bracket 681 and a thermocouple 682. The bracket 681 is fixed to the top of the cabinet 1 and located on one side of the water bath 31. The thermocouple 682 is mounted on the bracket 681 and is used to detect the water temperature inside the water bath 31.

[0030] Furthermore, such as Figure 2 As shown, a camera 69 and a sealing cover are fixedly connected to the inner wall of the water bath 31. The sealing cover is set around the camera 69, and the end of the sealing cover away from the water bath 31 is set to be transparent. Thus, the camera 69 can obtain the position of thermocouple 653 and detection rod 665 and the state of resin during resin water bath testing inside the water bath 31, ensuring the standardization of the resin water bath testing process.

[0031] The controller 4 is connected to the water bath mechanism 3 and the detection mechanism 6 via signal transmission. The controller 4 has an internal detection system. The controller 4 uses the detection system to acquire the resin temperature detected by thermocouple 653 during resin water bath heating and heat release, the water temperature in the water bath 31, the weight of the test tube 5 detected by pressure sensor 392, and the image captured by camera 69. Then, by acquiring the image captured by camera 69, the controller controls thermocouple 653 and detection rod 665 to be inserted into the resin in each test tube 5 to a consistent depth. This enables simultaneous and standardized detection of the resin temperature and curing status in multiple test tubes 5. At the same time, camera 69 can also acquire the reaction state of the resin in the test tubes 5, thereby ensuring the accuracy of the acquired resin water bath heating and heat release curve. It can also detect the resin curing status and state, making the resin water bath heating and heat release curve detection standardized, reducing human intervention, and improving the accuracy of the detection results.

[0032] Working principle of the resin water bath heating exothermic curve detection device: The staff sets the target temperature and heating rate of the water bath 31 on the controller 4. The resistance wire heats the water in the water bath 31, and the circulation pump 33 starts to circulate the water in the water bath 31 to ensure that the water temperature in the water bath 31 is uniform.

[0033] Afterwards, the staff placed the test tubes 5 containing the resin to be tested into the storage opening of the movable rack 38 one by one, and then placed the movable rack 38 with the test tubes 5 loaded into the water bath 31. At this time, the bottom of the test tubes 5 will press on the pressure ring 395 of the pressure detection component 39, the spring 394 will be compressed, and the pressure sensor 392 will record the initial weight to determine whether the test tubes 5 are placed in place, and to monitor whether the sample has volatilized during the experiment, and to determine whether the resin has solidified after the reaction is complete.

[0034] Then the staff lifted the limiting block 64 upwards, slid the slider 62 horizontally along the limiting groove 63 on the support frame 61 to the top of the target test tube 5, lowered the limiting block 64 so that it was locked into the limiting groove 63 to complete the horizontal positioning, then put the stopper 671 on the mouth of the test tube 5 to seal it, and then put the thermocouple 653 on the clamp 652. The detection system controls cylinders 651 and 661 to start, causing thermocouple 653 and the detection rod 665 to descend. Thermocouple 653 passes through the center hole of the limiting cover 672 and the plug 671, and is directly inserted below the resin liquid surface to measure the temperature of the resin sample. The detection rod 665 passes through the fan-shaped through hole of the limiting cover 672 and the plug 671, and contacts the resin surface. At the same time, the detection system acquires and identifies the descending position of thermocouple 653 and the detection rod 665, so that the extension and retraction lengths of cylinders 651 and 661 can make the positions of each thermocouple 653 and each detection rod 665 consistent in different test tubes 5. Then, the limiting cover 672 is locked onto the plug 671.

[0035] When placing the test tube 5 movable rack 38 into the water bath 31, the water temperature inside the water bath 31 must be kept stable at a specific temperature, usually 30℃. At this time, the heating rate of the water in the water bath 31 is 0. Simultaneously, the detection system starts the first timing and stops when the resin temperature detected by thermocouple 653 matches the water temperature. The second timing then restarts and is recorded as t. i i is the number of test tubes 5. During the second timing process, the water temperature inside the water bath 31 is kept stable.

[0036] During the second timing process, the detection system records the heating rate of the resin in test tube 5. The heating rate is the ratio of the temperature difference between the initial and final temperatures per unit time to the unit time, and is denoted as ∆V. i ∆V i Let Δt be the temperature rise per unit time, and T be the initial temperature per unit time. i-1 The final temperature per unit time is denoted as T. i-2 ,but ∆V i When ΔV > 0, the resin is in an exothermic state and begins to react, and ΔV i The larger the value, the greater the heating rate, and the more vigorous the reaction; ∆V i When the temperature reaches 0, the resin temperature is stable, neither releasing nor absorbing heat, and the reaction is complete. The detection system records this temperature as T. i-0 ;∆V i When the temperature is less than 0, the resin is in a heat dissipation state and the resin temperature drops. During this process, the detection system records the temperature at each time point during the second timing process and plots the resin temperature-time curve for subsequent observation by staff.

[0037] It should be noted that, since the water bath temperature is constant at this time, any abnormal rise in resin temperature originates from the heat released by its own curing reaction. Therefore, the staff can also detect the temperature rise by measuring the ratio of resin in the multiple test tubes 5 inside the water bath 31, and by measuring the temperature of the resin. i-0 ∆V i The resin temperature-time curve is used to determine the cause of abnormal resin temperature rise. When conducting resin water bath tests at different temperatures, the water temperature and heating rate in the water bath 31 are set by the controller 4, thereby further improving the diversity of test data.

[0038] During the second timing process, the operator can use the controller 4 to set the detection system to activate cylinder 661 to extend and retract a short distance when a certain time point, heating rate, or temperature is reached. This causes the detection rod 665 to rise and fall a short distance. The specific extension and retraction length and time interval of cylinder 661 are manually set. During this process, after the resin reacts and cures, the detection rod 665 will adhere to the cured resin. The rising and falling detection rod 665 will cause the resin and test tube 5 to rise and fall synchronously, changing the contact state between the test tube 5 and the pressure ring 395. At this time, the pressure value detected by the pressure sensor 392 will fluctuate. Simultaneously, the detection system records the pressure data at each time point during the second timing process and plots the resin pressure-time curve, integrating the temperature-time curve for subsequent observation. When the fluctuation range reaches its maximum and then stabilizes, the time point when the initial fluctuation range reaches its maximum is marked. The operator can then correlate this time point with the temperature. i-0 By comparing the results, we can determine the relationship between the end of the numerical response and the fluctuation of the pressure value.

[0039] It should be noted that the detection rod 665 can be a rotor or other form of viscosity sensor, used to indirectly measure the viscosity change of the resin during the curing process and obtain the gel point of the resin reaction process; in order to further determine whether the reaction is over, the detection system controls the motor 663 to start, driving the support ring 664 to rotate, thereby driving the detection rod 665 to rotate horizontally in the fan-shaped through hole. The detection system acquires the image captured by the camera 69. If the test tube 5 can rotate synchronously, it is determined that the reaction is over.

[0040] By using the above method, the temperature and viscosity data of multiple samples during the curing process can be collected in real time and synchronously using the testing agency 6, and the exothermic curve of the resin curing characteristics can be plotted, which greatly improves the efficiency, standardization and data reliability of the test.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A resin water bath heating exothermic curve detection device, comprising a cabinet (1), a water bath mechanism (3), a controller (4), several test tubes (5), and a detection mechanism (6), characterized in that, The water bath mechanism (3), the controller (4), and the testing mechanism (6) are all installed on the cabinet (1). The controller (4) is installed on one side of the water bath mechanism (3), the testing mechanism (6) is located above the water bath mechanism (3), and the test tube (5) is installed on the testing mechanism (6). The detection mechanism (6) includes a support frame (61), several temperature detection components (65), several viscosity detection components (66), several sealing components (67), and a second temperature detection component (68). The first temperature detection component (65) includes a cylinder (651) and a thermocouple (653). The cylinder (651) is fixed to the bottom of the slider (62). The output end of the cylinder (651) is fixedly connected to a clamp (652). The thermocouple (653) is mounted on the clamp (652). The viscosity detection assembly (66) includes a second cylinder (661), a motor (663), a support ring (664), and a detection rod (665). The second cylinder (661) is fixed to the bottom of the slider (62) and located on one side of the first cylinder (651). The output end of the second cylinder (661) is fixedly connected to a second connecting seat (662). The support ring (664) is rotatably connected to the bottom of the second connecting seat (662). The detection rod (665) is fixed to the bottom of the support ring (664). The inner wall of the water bath (31) is fixedly connected to a camera (69) and a sealing cover.

2. The resin water bath heating exothermic curve detection device according to claim 1, characterized in that, The water bath mechanism (3) includes a water bath (31), a water circulation component, a movable frame one (37), a movable frame two (38), and several pressure detection components (39). The water circulation component is located below the water bath (31). The bottom of the water bath (31) is provided with a drain outlet (32), a return water outlet, and a water inlet. The return water outlet and the water inlet are located at opposite ends of the bottom diagonal of the water bath (31). The water circulation component includes a circulation pump (33) and two sets of stirring fans (35). The circulation pump (33) is provided with a water inlet end (331) and a water outlet end (332). The water inlet end (331) is connected to the return water outlet pipe, and the water outlet end (332) is connected to the water inlet pipe. The end of the water inlet away from the water outlet end (332) is fixedly connected to a water outlet pipe (36). The water outlet pipe (36) is L-shaped. The bottom of the water bath (31) is fixedly connected to two sets of bases (34). One set of bases (34) is located on the side of the return water port, and the other set of bases (34) is located on the side of the water outlet pipe (36). The two sets of stirring fans (35) are respectively set on the bases (34) and rotatably connected to the bases (34).

3. The resin water bath heating exothermic curve detection device according to claim 2, characterized in that, Both movable frame one (37) and movable frame two (38) are provided with several storage openings. Several pressure detection components (39) are respectively disposed in the storage opening of movable frame two (38) near the bottom of the test tube (5), protruding from the storage opening. Each pressure detection component (39) includes a limiting seat (391), a pressure sensor (392), and a pressure ring (395). The limiting seat (391) is disposed in the storage opening and is engaged with movable frame two (38). The limiting seat (391) is provided with a detection groove on the side facing the test tube (5). The pressure sensor (392) is located in the detection groove. The pressure sensor (392) is provided with a connecting seat (393) on the top. Several springs (394) are fixedly connected to the top of the connecting seat (393). The pressure ring (395) is located on the top of the springs (394) and fixedly connected to the springs (394). The pressure ring (395) is located in the detection groove and is slidably connected to the limiting seat (391).

4. The resin water bath heating exothermic curve detection device according to claim 3, characterized in that, The support frame (61) is fixed to the top of the cabinet (1). The top of the support frame (61) is provided with a sliding groove. The top of the sliding groove is provided with a limiting groove (63). Several sliders (62) are provided inside the sliding groove. The top of the sliders (62) is provided with a limiting block (64). The shape of the limiting block (64) matches that of the limiting groove (63).

5. The resin water bath heating exothermic curve detection device according to claim 4, characterized in that, The support ring (664) is sleeved around the thermocouple (653), the motor (663) is fixed to the top of the connecting seat (662), and the output end of the motor (663) passes through the connecting seat (662) and is gear-driven connected to the support ring (664).

6. The resin water bath heating exothermic curve detection device according to claim 5, characterized in that, The sealing assembly (67) includes a plug (671), a limiting cap (672), and a rotating ring (673). The plug (671) is disposed on the top of the test tube (5). The limiting cap (672) is snapped onto the top of the plug (671). The rotating ring (673) is rotatably disposed on the top of the limiting cap (672). The detection rod (665) passes through the rotating ring (673) and the limiting cap (672). The detection rod (665) is slidably connected to the rotating ring (673). The limiting cap (672) is provided with a central hole and a fan-shaped through hole. The thermocouple (653) is located in the central hole and is slidably connected to the limiting cap (672). The detection rod (665) is located in the fan-shaped through hole.

7. The resin water bath heating exothermic curve detection device according to claim 6, characterized in that, The second temperature detection component (68) includes a bracket (681) and a second thermocouple (682). The bracket (681) is fixed to the top of the cabinet (1) on one side of the water bath (31), and the second thermocouple (682) is mounted on the bracket (681).

8. The resin water bath heating exothermic curve detection device according to claim 7, characterized in that, The sealing cover is located around the camera (69), and the end of the sealing cover away from the water bath (31) is made transparent.

9. The resin water bath heating exothermic curve detection device according to claim 8, characterized in that, The cabinet (1) has several storage areas inside, and the cabinet (1) has cabinet doors (2) on its side, with the cabinet doors (2) corresponding to the positions of the storage areas.

10. The resin water bath heating exothermic curve detection device according to claim 9, characterized in that, The controller (4) is connected to the water bath mechanism (3) and the detection mechanism (6) by signal. The controller (4) is equipped with a detection system. The controller (4) obtains the resin temperature detected by thermocouple 1 (653), the water temperature in the water bath (31), the weight of the test tube (5) detected by the pressure sensor (392), and the image captured by the camera (69) through the detection system. Then, by obtaining the image captured by the camera (69), the controller controls the thermocouple 1 (653) and the detection rod (665) to be inserted into the resin in each test tube (5) to a consistent depth, so as to realize the simultaneous and standardized detection of the resin temperature and curing status in multiple test tubes (5). At the same time, the camera (69) can also obtain the reaction state of the resin in the test tube (5), thereby ensuring the accuracy of the obtained resin water bath heating and heat release curve. It can also realize the detection of resin curing status and state, so as to standardize the detection of resin water bath heating and heat release curve.

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