A hot melt adhesive rotational rheometer

Abstract

The present invention is applicable to the technical field of detection equipment, and in particular to a hot melt adhesive rotational rheometer, the hot melt adhesive rotational rheometer comprising: a base, a group of stators are installed on the base, the stators are controlled by a driving mechanism arranged in the base, a reflective strip is arranged on the stator, a fuselage is installed on the base, an automatic lifting mechanism is installed on the fuselage, a rotor is installed on the automatic lifting mechanism, the automatic lifting mechanism comprises a laser transceiver, a shading mirror, a first image acquisition device and a second image acquisition device, the laser transceiver detects the distance between the stator and the rotor by cooperating with the shading mirror and the reflective strip. The present invention can accurately measure the distance between the stator and the rotor by arranging a laser transceiver, so as to cooperate with the automatic lifting mechanism to complete the control of the distance, so the accuracy requirements for the motor and the automatic lifting mechanism itself are reduced, and the accuracy of the distance control is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of detection equipment, and in particular relates to a hot melt adhesive rotational rheometer. Background Art

[0002] Hot melt adhesive rotational rheometer is a precision instrument specially designed to measure and analyze the rheological properties of hot melt adhesive materials in a heated and molten state. This type of rheometer uses a rotational test method to determine the viscosity, yield stress, creep recovery, viscoelasticity and other performance indicators of hot melt adhesives by controlling the shear rate and temperature between the sample disk and the rotating tool (such as a cone or a plate).

[0003] Current rotational rheometers can detect the rheological properties of materials by rotation. During the test, the distance between the rotor and the stator needs to be controlled to measure the torque between the rotor and the stator at different distances. As the length of use increases, the equipment becomes worn out, and the distance control error between the rotor and the stator gradually increases, affecting the test accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a hot melt adhesive rotational rheometer, aiming to solve the problem that as the use time increases, the equipment becomes worn, and the distance control error between the rotor and the stator gradually increases, affecting the test accuracy.

[0005] The present invention is implemented as follows: a hot melt adhesive rotational rheometer, the hot melt adhesive rotational rheometer comprising:

[0006] A base, wherein a group of stators are installed on the base, the stators are controlled by a driving mechanism arranged in the base, the stators are provided with reflective strips, a body is installed on the base, an automatic lifting mechanism is installed on the body, a rotor is installed on the automatic lifting mechanism, the automatic lifting mechanism comprises a laser transceiver, a shading mirror, a first image acquisition device and a second image acquisition device, the automatic lifting mechanism is used to control the lifting of the rotor according to the distance detected by the laser transceiver, and the laser transceiver detects the distance between the stator and the rotor by cooperating with the shading mirror and the reflective strip.

[0007] Preferably, the automatic lifting mechanism includes a lifting motor and a mounting seat, a group of threaded rods rotatably mounted on the fuselage, and a sliding rod is also fixedly mounted on the fuselage, the threaded rod and the sliding rod are both horizontally arranged and parallel to each other, the threads at both ends of the threaded rod have opposite rotation directions, and the two ends of the threaded rod are respectively connected to a group of sliding seats through different threads, the sliding seats are slidably connected to the sliding rods, and a support arm is rotatably connected to the sliding seat, and the support arm is rotatably connected to the mounting seat, a guide cylinder is fixedly mounted on the mounting seat, a guide rod is fixedly mounted on the fuselage, the guide rod is arranged perpendicular to the mounting seat, the guide rod sliding sleeve is arranged in the guide cylinder, a rotating motor is fixedly mounted on the mounting seat, a magnetic seat is fixedly mounted on the rotating shaft of the rotating motor, the rotor is mounted in the magnetic seat by magnetic adsorption, the shading mirror is fixedly mounted on the magnetic seat, the laser transceiver is fixedly mounted on the bottom of the mounting seat and is located directly above the shading mirror, and the first image acquisition device and the second image acquisition device are fixedly mounted on both sides of the mounting seat for detecting the feeding quality.

[0008] Preferably, the driving mechanism includes a stator drive motor, an installation cavity is provided on the base, the stator drive motor is fixedly installed in the installation cavity, a worm is fixedly connected to the output shaft of the stator drive motor, a group of worm wheels are also rotatably installed in the installation cavity, the worm is meshed with the worm wheel, the worm wheel is fixedly connected to a connecting seat through a wireless torque sensor, the stator is installed in the connecting seat, and the reflective strip is a ring structure.

[0009] Preferably, a shock-absorbing pad is provided at the bottom of the base, a display screen and a touch panel are provided on the base, and a residual material cleaning component is provided on the body.

[0010] Preferably, the working process of the hot melt adhesive rotational rheometer is:

[0011] The material to be tested is placed on the stator, and the rotor is controlled to descend through the automatic lifting mechanism according to the test process, and the distance between the rotor and the stator is measured in real time through the laser transceiver;

[0012] Capturing images by using a first image acquisition device and a second image acquisition device to determine whether the amount of material delivered meets the requirements;

[0013] The residual materials outside the stator and the rotor are removed by the residual material cleaning component. During the removal process, the stator and the rotor rotate synchronously.

[0014] During the test, the real-time test conditions are changed by changing the speed and rotation direction of the stator and rotor, and the test data collected by the wireless torque sensor is collected.

[0015] Preferably, the step of collecting images and determining whether the material delivery amount meets the requirements specifically includes:

[0016] When the rotor approaches the stator, image acquisition is performed at a preset time interval, and two groups of images to be synthesized are obtained each time the image acquisition is performed, and the two groups of images to be synthesized are synthesized into a group of images to be identified;

[0017] The images to be identified are stored in chronological order, and two adjacent groups of images to be identified are compared. When there is no change in the images to be identified, it is determined that the image acquisition is completed;

[0018] Identify the rotor in the image to be identified, count the pixels around the rotor, determine the change time of each pixel, and judge whether the material delivery amount meets the requirements based on the pixel change time.

[0019] Preferably, the step of using a laser transceiver in cooperation with a shading mirror and a reflective strip to detect the distance between the stator and the rotor specifically includes:

[0020] The test light is emitted to the reflective strip through the laser transceiver. After passing through one side of the sunshade, the test light reaches the reflective strip, and after being reflected by the reflective strip, it passes through the other side of the sunshade and reaches the laser transceiver.

[0021] Recording the light data by a laser transceiver to obtain test light path data, wherein the test light path data at least includes light intensity data and emission time and incident time;

[0022] The test optical path data is analyzed to identify the source of the light and calculate the distance between the stator and the rotor based on the arrival time between different light rays.

[0023] A hot melt adhesive rotational rheometer provided by the present invention can accurately measure the distance between the stator and the rotor by setting a laser transceiver, so as to control the distance in cooperation with an automatic lifting mechanism. Therefore, the accuracy requirements for the motor and the automatic lifting mechanism itself are reduced, and the accuracy of distance control is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a hot melt adhesive rotational rheometer provided by an embodiment of the present invention from a first perspective;

[0025] Figure 2 A schematic diagram of a hot melt adhesive rotational rheometer from a second viewing angle provided by an embodiment of the present invention;

[0026] Figure 3 A third viewing angle schematic diagram of a hot melt adhesive rotational rheometer provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of a hot melt adhesive rotational rheometer provided by an embodiment of the present invention from a fourth viewing angle;

[0028] Figure 5A partially dissected schematic diagram of a hot melt adhesive rotational rheometer provided by an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0030] In the attached drawings: 1. base; 2. body; 3. support arm; 4. guide cylinder; 5. guide rod; 6. stator; 7. fixed scraper; 8. rotating motor; 9. mounting seat; 10. first image acquisition device; 11. second image acquisition device; 12. magnetic seat; 13. sunshade; 14. rotor; 15. wireless torque sensor; 16. display screen; 17. touch panel; 18. threaded rod; 19. slide rod; 20. sliding seat; 21. stator drive motor; 22. reflective strip; 23. worm; 24. worm wheel; 25. fixed sleeve; 26. spring; 27. telescopic rod; 28. positioning pin; 29. ​​movable scraper. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a structural diagram of a hot melt adhesive rotational rheometer provided by an embodiment of the present invention, the hot melt adhesive rotational rheometer comprises:

[0034] A base 1 is provided with a group of stators 6, the stators 6 are controlled by a driving mechanism arranged in the base 1, the stators 6 are provided with a reflective strip 22, a body 2 is provided on the base 1, an automatic lifting mechanism is provided on the body 2, a rotor 14 is provided on the automatic lifting mechanism, the automatic lifting mechanism comprises a laser transceiver, a shading mirror 13, a first image acquisition device 10 and a second image acquisition device 11, the automatic lifting mechanism is used to control the lifting and lowering of the rotor 14 according to the distance detected by the laser transceiver, and the laser transceiver detects the distance between the stator and the rotor by cooperating with the shading mirror 13 and the reflective strip 22.

[0035] In the embodiment of the present invention, when testing, the material to be tested is placed on the stator 6. At this time, the rotor 14 is controlled to move downward by the automatic lifting mechanism, so that the gap between the stator 6 and the rotor 14 is reduced. At this time, the material is squeezed and laid flat on the upper surface of the stator 6. However, when the amount of material input is small, or the position of the material placement is offset, it is easy for the material to be unevenly distributed between the stator 6 and the rotor 14. By setting the first image acquisition device 10 and the second image acquisition device 11, the position of the material can be monitored in real time, so as to determine whether the material is evenly distributed between the stator 6 and the rotor 14. In the process of determining the distance between the stator 6 and the rotor 14, the laser transceiver, the shading mirror 13 and the reflective strip 22 are used. In the process of controlling the distance between the stator 6 and the rotor 14, the automatic lifting mechanism is used to control the rotor 14 to descend. In this process, the distance between the stator 6 and the rotor 14 is continuously detected, so that the distance value is fed back to the automatic lifting mechanism, and feedback adjustment is completed, so that precise control of the distance can be achieved.

[0036] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, the automatic lifting mechanism includes a lifting motor and a mounting seat 9, a group of threaded rods 18 are rotatably mounted on the fuselage 2, and a sliding rod 19 is also fixedly mounted on the fuselage 2, the threaded rod 18 and the sliding rod 19 are both horizontally arranged, and the two are parallel to each other, the threads at both ends of the threaded rod 18 are rotated in opposite directions, and the two ends of the threaded rod 18 are respectively connected to a group of sliding seats 20 through different threads, and the sliding seats 20 are slidably connected to the sliding seats 20, and the supporting arms 3 are rotatably connected to the mounting seat 9, and the mounting seat 9 is fixedly mounted. A guide cylinder 4 is provided, a guide rod 5 is fixedly installed on the fuselage 2, the guide rod 5 is arranged perpendicular to the mounting seat 9, the guide rod 5 is slidably sleeved in the guide cylinder 4, a rotating motor 8 is fixedly provided on the mounting seat 9, a magnetic seat 12 is fixedly installed on the rotating shaft of the rotating motor 8, a rotor 14 is installed in the magnetic seat 12 by magnetic adsorption, a shading mirror 13 is fixedly installed on the magnetic seat 12, a laser transceiver is fixedly installed at the bottom of the mounting seat 9 and is located directly above the shading mirror 13, a first image acquisition device 10 and a second image acquisition device 11 are fixedly installed on both sides of the mounting seat 9 for detecting the feeding quality.

[0037] In this embodiment, during the lifting process, whether the rotor 14 rises or falls is determined based on the distance value measured by the laser transceiver. At this time, the lifting motor is started, and the lifting motor is used to drive the threaded rod 18 to rotate. Since the threaded rod 18 has thread segments with opposite thread rotation directions at both ends, the sliding seats 20 located on the above two groups of thread segments will move relative to each other or move toward each other, and the movement directions of the two are completely opposite. When it is necessary to control the rotor 14 to move downward, the two groups of sliding seats 20 are controlled to move closer to each other. At this time, the bottom angle of the regular trapezoidal area formed by the threaded rod 18, the two groups of support arms 3 and the mounting seat 9 will increase, and then the mounting seat 9 will drive the rotor 14 to move downward. , until the distance between the rotor 14 and the stator 6 reaches the set value. In the process of controlling the movement of the rotor 14, since the threaded rod 18, the two sets of support arms 3 and the mounting seat 9 form a regular trapezoidal area, the closer the rotor 14 is to the stator 6, the slower its adjustment speed is, and the farther the rotor 14 is from the stator 6, the faster its adjustment speed is. Therefore, it is possible to ensure that when the distance between the rotor 14 and the stator 6 needs to be precisely controlled, a small adjustment is made, and when the rotor 14 needs to be controlled to rise, it can quickly rise to the highest position; in the process of feeding, the first image acquisition device 10 and the second image acquisition device 11 are used to capture images of the material to determine whether the material is evenly placed.

[0038] like Figure 1 and Figure 6 As shown, as a preferred embodiment of the present invention, a shock-absorbing pad is arranged at the bottom of the base 1, a display screen 16 and a touch panel 17 are arranged on the base 1, and a residual material cleaning component is arranged on the body 2.

[0039] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, the driving mechanism includes a stator drive motor 21, a mounting cavity is provided on the base 1, the stator drive motor 21 is fixedly installed in the mounting cavity, a worm 23 is fixedly connected to the output shaft of the stator drive motor 21, a group of worm wheels 24 are also rotatably installed in the mounting cavity, the worm 23 is meshed with the worm wheel 24, the worm wheel 24 is fixedly connected to a connecting seat through a wireless torque sensor 15, the stator 6 is installed in the connecting seat, and the reflective strip 22 is a ring structure.

[0040] In this embodiment, by setting a wireless torque sensor 15, the torque generated between the rotor 14 and the stator 6 can be detected during the rotation of the rotor 14 relative to the stator 6, and the above data can be recorded. The residual material cleaning component includes a fixed sleeve 25, a telescopic rod 27 is slidably arranged in the fixed sleeve 25, a spring 26 is sleeved on the outer periphery of the telescopic rod 27, a magnetic connection seat is fixedly arranged on the telescopic rod 27, a positioning pin 28 is arranged on the magnetic connection seat, and a movable scraper 29 is sleeved on the positioning pin 28. A fixed scraper 7 is arranged on the fuselage 2, and an electromagnet is arranged in the fixed sleeve 25. After the stator 6 and the rotor 14 flatten the material, the material will overflow from the gap between the two. Before the test, the electromagnet is energized so that the telescopic rod 27 drives the movable scraper 29 to approach the edge of the rotor 14. At this time, the stator drive motor 21 is started to drive the stator 6 and the rotor 14 to rotate synchronously, so that the residual material is scraped off by the movable scraper 29. During the return process of the movable scraper 29, the residual material attached to it is cleaned up by the fixed scraper 7.

[0041] In an embodiment of the present invention, if temperature control is required during material testing, a temperature control component such as a heating device or a heat dissipation device can be provided on the stator. The heating device can be a built-in heating wire, and the heat dissipation device can be an air cooling device or a water cooling device.

[0042] like Figure 1 As shown, as a preferred embodiment of the present invention, the working process of the hot melt adhesive rotational rheometer is:

[0043] The material to be tested is placed on the stator 6, and the rotor 14 is controlled to descend by the automatic lifting mechanism according to the test process, and the distance between the rotor 14 and the stator 6 is measured in real time by the laser transceiver.

[0044] In this step, the material to be tested is placed on the stator 6. When the distance between the stator 6 and the rotor 14 needs to be controlled, the laser transceiver is started and the test light is emitted by the laser transceiver. The test light is first irradiated onto the shading mirror 13, part of which will pass through the shading mirror 13, and the other part will be directly reflected back to the laser transceiver. The light passing through the shading mirror 13 will reach the shading mirror 13 again after being reflected by the reflective strip 22. Similarly, part of the light passes through the shading mirror 13 and returns to the laser transceiver, and part of the light is reflected. The shading mirror 13 can reflect the light, and its reflectivity is a fixed value. Then the light intensity returning to the laser transceiver twice is different, and the time is also different. The distance between the rotor 14 and the stator 6 is calculated based on the speed of light and time.

[0045] The first image acquisition device 10 and the second image acquisition device 11 are used to acquire images to determine whether the material delivery amount meets the requirements.

[0046] In this step, the first image acquisition device 10 and the second image acquisition device 11 are used to acquire images. During the process of the rotor 14 descending, the material is squeezed and deformed, and thus distributed between the rotor 14 and the stator 6. However, if the material is not placed correctly, a cavity is easily formed between the stator 6 and the rotor 14, which affects the test accuracy. Therefore, the first image acquisition device 10 and the second image acquisition device 11 are continuously used to acquire images, and it is determined based on the acquired images whether the material placement amount and placement position meet the requirements. If the requirements are met, the test is continued. The specific process includes: when the rotor 14 approaches the stator 6, the material is placed between the stator 6 and the rotor 14, and the material is placed between the stator 6 and the rotor 14. When the rotor 14 is close, image acquisition is performed at a preset time interval, and two groups of images to be synthesized are obtained each time the image acquisition is performed, and they are synthesized into a group of images to be identified. When the rotor 14 is pressed down, the first image acquisition device 10 and the second image acquisition device 11 respectively acquire images from both sides, each of which contains half of the rotor 14 screen. The edge of the rotor 14 is identified by the edge detection algorithm. At this time, the area where the rotor 14 is located can be determined, and the two groups of images are integrated to obtain the image to be identified. The images to be identified are stored in chronological order, and the two adjacent groups of images to be identified are compared. When the image to be identified is When there is no change in the image, it is determined that the image acquisition is completed. The image acquisition is continuously performed. When the rotor 14 starts to contact the material, the pixels near the edge of the rotor 14 in the image will change due to the overflow of the material. The above changes are caused by the movement of the material. When there is no change in the image, it means that the rotor 14 has moved into place and the material no longer changes. At this time, the image acquisition is considered to be completed, the rotor 14 in the image to be identified is identified, the pixels around the rotor 14 are counted, the change time of each pixel is determined, and the material delivery amount is determined according to the pixel change time. Whether the rotor 14 meets the requirements is identified. The corresponding edge is constructed with a preset pixel width adjacent to the edge of the rotor 14, that is, an annular area is generated around the rotor 14 and taken as the pixel area. Then, the pixel change time of each position in the pixel area is identified, and the pixel area is divided into multiple independent detection areas. For example, the pixel area is divided into 360 sector areas, and the time when the pixels in each sector area change is determined. If the time difference between the final changes in adjacent sector areas is greater than a preset value, it is determined that there is a cavity area. If there is a sector area without any change, it is also determined that there is a cavity area, and it is regarded as that the material input amount does not meet the standard.

[0047] like Figure 1 As shown, as a preferred embodiment of the present invention, the laser transceiver cooperates with the shading mirror 13 and the reflective strip 22 to detect the distance between the stator and the rotor, specifically including:

[0048] The laser transceiver emits a test light to the reflective strip 22 , and the test light passes through one side of the shading mirror 13 to reach the reflective strip 22 , and then passes through the other side of the shading mirror 13 after being reflected by the reflective strip 22 to reach the laser transceiver.

[0049] The light data is recorded by a laser transceiver to obtain test light path data, which at least includes light intensity data and emission time and incident time.

[0050] The test optical path data is analyzed to identify the source of the light, and the distance between the stator 6 and the rotor 14 is calculated based on the arrival time between different light rays.

[0051] In this embodiment, the test light is emitted to the reflective strip 22 by the laser transceiver. The test light first reaches the shading mirror 13, and then directly reaches the laser transceiver through reflection from the shading mirror 13. The intensity of the test light is P0, and the emission time is T0. The light reflected by the shading mirror 13 has an intensity of P1 and a receiving time of T1. After passing through the shading mirror 13, it is reflected by the reflective strip 22, and then returns to the laser transceiver through the shading mirror 13. The intensity is P2 and the time is T2. Then the distance between the laser transceiver and the shading mirror 13 is L1=( T1-T0)*C*0.5, where C is the speed of light. Similarly, the distance between the laser transceiver and the reflective strip 22 can be calculated to be L2=(T2-T0)*C*0.5. The light reflectivity and light transmittance of the shading mirror 13 are both known. Therefore, based on the emission intensity of the test light, the intensity values ​​of the two lights when they are received can be calculated to achieve the purpose of identifying the sources of the two lights. Since the distance between the shading mirror 13 and the lower end surface of the rotor 14 is a preset value, the distance between the stator 6 and the rotor 14 can be calculated.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot melt adhesive rotational rheometer, characterized in that: The hot melt adhesive rotational rheometer comprises: A base (1) is provided on which a group of stators (6) are mounted. The stators (6) are controlled by a driving mechanism arranged in the base (1). A reflective strip (22) is arranged on the stator (6). A body (2) is mounted on the base (1). An automatic lifting mechanism is mounted on the body (2). A rotor (14) is mounted on the automatic lifting mechanism. The automatic lifting mechanism comprises a laser transceiver, a shading mirror (13), a first image acquisition device (10) and a second image acquisition device (11). The automatic lifting mechanism is used to control the lifting of the rotor (14) according to the distance detected by the laser transceiver. The laser transceiver detects the distance between the stator and the rotor by cooperating with the shading mirror (13) and the reflective strip (22).

2. The hot melt adhesive rotational rheometer according to claim 1, characterized in that: The automatic lifting mechanism comprises a lifting motor and a mounting seat (9); a group of threaded rods (18) are rotatably mounted on the body (2); a sliding rod (19) is also fixedly mounted on the body (2); the threaded rod (18) and the sliding rod (19) are both horizontally arranged and parallel to each other; the threads at both ends of the threaded rod (18) are in opposite directions; the two ends of the threaded rod (18) are respectively connected to a group of sliding seats (20) through different threads; the sliding seats (20) are slidably connected to the sliding seats (20); a support arm (3) is rotatably connected to the mounting seat (9); a guide cylinder (4) is fixedly mounted on the mounting seat (9); the body (2) A guide rod (5) is fixedly installed, the guide rod (5) is arranged perpendicular to the mounting seat (9), the guide rod (5) is slidably sleeved in the guide cylinder (4), a rotating motor (8) is fixedly installed on the mounting seat (9), a magnetic seat (12) is fixedly installed on the rotating shaft of the rotating motor (8), a rotor (14) is installed in the magnetic seat (12) by magnetic adsorption, a shading mirror (13) is fixedly installed on the magnetic seat (12), a laser transceiver is fixedly installed at the bottom of the mounting seat (9) and is located directly above the shading mirror (13), and a first image acquisition device (10) and a second image acquisition device (11) are fixedly installed on both sides of the mounting seat (9) for detecting the quality of feeding.

3. The hot melt adhesive rotational rheometer according to claim 1, characterized in that: The driving mechanism comprises a stator drive motor (21), a mounting cavity is arranged on the base (1), the stator drive motor (21) is fixedly mounted in the mounting cavity, a worm (23) is fixedly connected to the output shaft of the stator drive motor (21), a group of worm wheels (24) are rotatably mounted in the mounting cavity, the worm (23) is meshed with the worm wheel (24), the worm wheel (24) is fixedly connected to a connecting seat via a wireless torque sensor (15), the stator (6) is mounted in the connecting seat, and the reflective strip (22) is a ring structure.

4. The hot melt adhesive rotational rheometer according to claim 1, characterized in that: A shock-absorbing pad is arranged at the bottom of the base (1), a display screen (16) and a touch panel (17) are arranged on the base (1), and a residual material cleaning component is arranged on the body (2).

5. The hot melt adhesive rotational rheometer according to claim 3, characterized in that: The working process of hot melt adhesive rotational rheometer is: The material to be tested is placed on the stator (6), and the rotor (14) is controlled to descend by an automatic lifting mechanism according to the test process, and the distance between the rotor (14) and the stator (6) is measured in real time by a laser transceiver; Capturing images through a first image acquisition device (10) and a second image acquisition device (11) to determine whether the amount of material delivered meets the requirements; The residual materials outside the stator (6) and the rotor (14) are removed by a residual material cleaning component, and during the removal process, the stator (6) and the rotor (14) rotate synchronously; During the test, the real-time test conditions are changed by changing the rotation speed and the rotation direction of the stator (6) and the rotor (14), and the test data collected by the wireless torque sensor (15) is collected.

6. The hot melt adhesive rotational rheometer according to claim 5, characterized in that: The step of collecting images and determining whether the material delivery amount meets the requirements specifically includes: When the rotor (14) approaches the stator (6), image acquisition is performed at a preset time interval, and two groups of images to be synthesized are obtained each time the image acquisition is performed, and the two groups of images to be synthesized are synthesized into a group of images to be identified; The images to be identified are stored in chronological order, and two adjacent groups of images to be identified are compared. When there is no change in the images to be identified, it is determined that the image acquisition is completed; The rotor (14) in the image to be identified is identified, pixels around the rotor (14) are counted, the change time of each pixel is determined, and whether the material delivery amount meets the requirements is judged according to the pixel change time.

7. The hot melt adhesive rotational rheometer according to claim 5, characterized in that: The laser transceiver cooperates with the shading mirror (13) and the reflective strip (22) to detect the distance between the stator and the rotor, which specifically includes: A test light is emitted to the reflective strip (22) through a laser transceiver, and the test light passes through one side of the shading mirror (13) and reaches the reflective strip (22), and then passes through the other side of the shading mirror (13) after being reflected by the reflective strip (22) and reaches the laser transceiver; Recording the light data by a laser transceiver to obtain test light path data, wherein the test light path data at least includes light intensity data and emission time and incident time; The test light path data is analyzed to identify the source of the light, and the distance between the stator (6) and the rotor (14) is calculated based on the arrival time between different light rays.

Images