A rubber cloth elastic recovery performance testing device

Abstract

The present invention discloses an elastic recovery performance testing device for a rubber blanket, which relates to the technical field of elastic recovery testing of rubber blankets. The device comprises two brackets, wherein a connecting block and a transmission mechanism are provided on the upper side of each bracket, and two guide slide seats are provided between the connecting block and the transmission mechanism. The automatic loading and unloading of the rubber blanket is completed by the up and down movement of an electric lifting platform and the automatic clamping and loosening of a clamping mechanism, thereby achieving the effect of automatic loading and detection. The surface texture of the rubber blanket is photographed by a camera to judge the field in which the rubber blanket needs to be applied subsequently, and then the rubber blanket is controlled to simulate a matching test environment during a subsequent elastic recovery performance test, thereby improving the accuracy of the elastic recovery performance test of the rubber blanket and effectively preventing the phenomenon that the elastic recovery performance of the subsequent rubber blanket is lower than the elastic recovery performance previously detected due to environmental changes, thereby affecting the normal use of the subsequent rubber blanket.

Description

Technical Field

[0001] The invention relates to the technical field of rubber blanket elastic recovery testing, in particular to a rubber blanket elastic recovery performance testing device. Background Art

[0002] Rubber blankets are composed of rubber coating and fiber fabric layers and are mainly used in the printing, industrial and medical fields. In the printing field, rubber blankets are mainly used to transfer printing inks. The rubber blanket needs to be in close contact with the printing plate and paper, and repeatedly deform and recover during high-speed operation. Rubber blankets with good tensile recovery properties can ensure uniform distribution of printing pressure, so that the ink can be evenly transferred from the printing plate to the paper.

[0003] In the industrial field, the rubber cloth is used as the main component of the transmission belt in the drive device of the conveyor, connecting the motor and the transmission roller. During transmission, the rubber cloth of the conveyor needs to bear the weight of the material and the friction during the conveying process. Good tensile recovery performance can enable the rubber cloth to maintain a stable shape and size when subjected to tensile force, reducing the problem of material leakage or unstable conveying due to deformation.

[0004] In the medical field, rubber sheets are primarily used in surgical gloves. Medical staff frequently bend and stretch their fingers during surgery, requiring the rubber sheets to have excellent stretch recovery properties. If the stretch recovery properties of the rubber sheets are poor, the gloves may break or lose their elasticity during use.

[0005] Therefore, in order to prevent the rubber blanket from having poor tensile recovery performance during subsequent use, which may result in the rubber blanket being unable to be used normally, the rubber blanket needs to be tested for elastic recovery performance after production. However, the existing rubber blanket elastic recovery performance testing equipment can only stretch the rubber blanket and test the elastic recovery performance of the rubber blanket. It is unable to simulate a suitable testing environment according to the use field of the rubber blanket to be tested, and accurately test the elastic recovery performance of rubber blankets in different use fields. As a result, the rubber blanket is affected by various environmental factors during subsequent use, resulting in the elastic recovery performance of the rubber blanket being lower than the elastic recovery performance tested previously, thereby reducing the accuracy of the equipment in testing the elastic recovery performance of the rubber blanket.

[0006] Therefore, it is necessary to design a rubber blanket elastic recovery performance testing device that can simulate different usage environments for testing according to the use field of the rubber blanket. Summary of the Invention

[0007] The object of the present invention is to provide a device for testing the elastic recovery performance of a rubber blanket to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an elastic recovery performance testing device for a rubber blanket, comprising two brackets, each of the brackets being provided with a connecting block and a transmission mechanism on the upper side, two guide slides being provided in the middle of the connecting block and the transmission mechanism, two clamping mechanisms for clamping the two sides of the rubber blanket being provided in the middle of the two guide slides, an electric lifting platform being provided in the middle of the two clamping mechanisms, an environmental simulation mechanism for respectively simulating body temperature environment, high humidity environment and high pressure environment being provided on the upper side of the electric lifting platform, a gantry being provided on the upper side of the environmental simulation mechanism, and a camera being fixedly connected to the lower side of the gantry.

[0009] According to the above technical solution, the transmission mechanism includes a transmission box fixedly connected to the upper side of the bracket, the transmission box is fixedly connected to a fixed frame inside, one side bearing of the fixed frame is connected to the second roller and the other side bearing is connected to the third roller, the transmission box is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the fourth rotating drum, the fourth rotating drum is connected to the third roller belt, and first rollers are respectively provided on both sides of the second roller, the two first rollers are connected to the transmission box bearings, the second roller is connected to the two first roller belts, and a first double-headed threaded rod is fixedly connected to the middle of each first roller, one end of the first double-headed threaded rod passes through the transmission box and is connected to the guide sliding seat bearing, and the outer sides of both ends of the guide sliding seat are threadedly connected to sliders.

[0010] According to the above technical solution, the clamping mechanism includes a positioning plate fixedly connected to one side of the slider, a servo motor is fixedly connected to the upper side of the positioning plate, the output end of the servo motor is fixedly connected to a second double-headed threaded rod, the other end bearing of the second double-headed threaded rod is connected to a seat and the seat is fixedly connected to the positioning plate, both ends of the second double-headed threaded rod are threadedly connected to the outer side of the two ends of the second double-headed threaded rod, one side of each of the splints is fixedly connected to a positioning frame, the upper side of the positioning frame is fixedly connected to a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected to a positioning bar, and one side of the positioning bar is fixedly connected to a number of rubber columns.

[0011] According to the above technical solution, the environmental simulation mechanism includes a lower simulation plate fixedly connected to the lifting end of the electric lifting platform, a water guide groove is provided on the upper side of the lower simulation plate, a second motor is fixedly connected to one side of the lower simulation plate, and the output end of the second motor is fixedly connected to a rotating shaft, the rotating shaft passes through the lower simulation plate and is fixedly connected to the upper simulation plate on the outside.

[0012] According to the above technical solution, a number of first spacer blocks are fixedly connected to both sides of the lower simulation plate, a first avoidance groove is provided between every two first spacer blocks, and a number of heating tubes are evenly fixedly connected inside the lower simulation plate.

[0013] According to the above technical solution, a guide groove is provided inside each of the first spacer blocks, a spring is fixedly connected to the inside of the guide groove, the other end of the spring is fixedly connected to a support block, the support block is slidably connected to the guide groove, a vertical surface is provided on one side of the support block, a support surface is provided on the upper side of the support block, and an inclined surface is provided on the lower side of the support block.

[0014] According to the above technical solution, a number of second spacer blocks are evenly fixedly connected on both sides of the upper simulation plate, and a second avoidance groove is provided between every two second spacer blocks. A water tank is fixedly connected to one side of the upper simulation plate, and a second hydraulic cylinder is fixedly connected to one side of the water tank. The output end of the second hydraulic cylinder passes through the water tank and is fixedly connected to a fixed plate. A number of sliding columns are evenly fixedly connected to one side of the fixed plate, and a water mist nozzle is fixedly connected to one side of each sliding column. The water mist nozzle passes through the upper simulation plate, and the sliding column is slidably connected to the water tank. A water inlet hole is provided on the outside of the sliding column, and the water inlet hole is used to pass the water source inside the water tank into the water mist nozzle.

[0015] According to the above technical solution, the camera is used to capture images of the rubber blanket surface. A database is provided inside the camera, and the database contains identification photos of different textures on the rubber blanket surface and identification photos of the rubber blanket in a flat state. The environmental simulation mechanism determines the application field of the rubber blanket based on the textures on the rubber blanket surface captured by the camera, and simulates a suitable environment for elastic recovery performance testing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Automatic loading and unloading of the blanket is accomplished by the up and down movement of the electric lifting platform and the automatic clamping and loosening of the clamping mechanism, achieving the effect of automatic loading and detection. The surface texture of the blanket is photographed by a camera to determine the field in which the blanket will be subsequently applied. This allows the blanket to be controlled in the subsequent elastic recovery performance test to simulate a matching test environment, thereby improving the accuracy of the elastic recovery performance test of the blanket and effectively preventing the subsequent elastic recovery performance of the blanket from being lower than the elastic recovery performance previously tested due to environmental changes, thereby affecting the normal use of the blanket. 2. By providing a support block, when the rubber cloth is placed above the lower simulation board, both sides of the rubber cloth are supported by the support surfaces of the support blocks, which effectively prevents the two sides of the rubber cloth from bending and sagging due to their own gravity, thereby affecting the subsequent normal clamping. When both sides of the rubber cloth are clamped by the upper and lower clamping plates, the contact surface of the lower clamping plate fits with the inclined surface of the support block. The thrust generated by the upward movement of the clamping plate drives the support block to slide obliquely downward along the guide groove, so that the support block enters the interior of the first spacer block, effectively preventing the lower clamping plate from colliding with the support block and interfering with the support block when moving upward, and failing to effectively clamp the bottom of the rubber cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an elastic recovery performance testing device for a rubber blanket according to the present invention;

[0020] Figure 2 Schematic diagram of the structure of the transmission mechanism of the present invention;

[0021] Figure 3 Schematic diagram of the structure of the clamping mechanism of the present invention;

[0022] Figure 4 Schematic diagram of the structure of the environment simulation mechanism in the present invention;

[0023] Figure 5 Schematic diagram of the structure of the lower simulation board in the present invention;

[0024] Figure 6 Schematic diagram of the internal structure of the first spacer block in the present invention;

[0025] Figure 7 Schematic diagram of the structure of the upper simulation board in the present invention;

[0026] Figure 8 Schematic diagram of the structure inside the water tank of the present invention;

[0027] In the picture:

[0028] 1. Bracket;

[0029] 2. Transmission mechanism; 21. Transmission box; 22. First roller; 23. Second roller; 24. Third roller; 25. Fixed frame; 26. First double-threaded rod; 27. Slider; 28. First motor;

[0030] 3. Guide slide; 4. Connecting block;

[0031] 5. Clamping mechanism; 51. Positioning plate; 52. Servo motor; 53. Second double-threaded rod; 54. Support; 55. Clamping plate; 56. Positioning frame; 57. First hydraulic cylinder; 58. Positioning bar; 59. Rubber column;

[0032] 6. Electric lifting platform;

[0033] 7. Environmental simulation mechanism; 71. Lower simulation plate; 72. Water guide trough; 73. Upper simulation plate; 731. Second spacer; 732. Water tank; 733. Water mist nozzle; 734. Sliding column; 735. Fixed plate; 736. Second hydraulic cylinder; 74. Second motor; 75. First spacer; 76. Heating tube; 77. Spring; 78. Support block; 781. Inclined surface; 782. Support surface; 783. Vertical surface;

[0034] 8. Gantry; 9. Camera. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-8 The present invention provides a technical solution: an elastic recovery performance testing device for a rubber blanket, comprising two brackets 1, each bracket 1 having a connecting block 4 and a transmission mechanism 2 on the upper side, two guide slides 3 provided between the connecting block 4 and the transmission mechanism 2, two clamping mechanisms 5 for clamping both sides of the rubber blanket provided between the two guide slides 3, an electric lifting platform 6 provided between the two clamping mechanisms 5, an environmental simulation mechanism 7 for simulating body temperature environment, high humidity environment and high pressure environment respectively provided on the upper side of the electric lifting platform 6, a gantry 8 provided on the upper side of the environmental simulation mechanism 7, and a camera 9 fixedly connected to the lower side of the gantry 8.

[0037] See also Figure 2The transmission mechanism 2 includes a transmission box 21 fixedly connected to the upper side of the bracket 1, and a fixed frame 25 is fixedly connected to the interior of the transmission box 21. A bearing on one side of the fixed frame 25 is connected to the second roller 23 and a bearing on the other side is connected to the third roller 24. A first motor 28 is fixedly connected to the interior of the transmission box 21, and the output end of the first motor 28 is fixedly connected to the fourth rotating drum. The fourth rotating drum is connected to the third roller 24 by a belt. A first roller 22 is provided on both sides of the second roller 23. The two first rollers 22 are connected to the transmission box 21 bearings, and the second roller 23 is connected to the two first rollers 22 by belts. A first double-headed threaded rod 26 is fixedly connected to the middle of each first roller 22. One end of the first double-headed threaded rod 26 passes through the transmission box 21 and is connected to the guide slide seat 3 bearing. The outer sides of both ends of the guide slide seat 3 are threadedly connected with sliders 27.

[0038] Specifically, the rotation of the output end of the first motor 28 is used to control the rotation of the fourth rotating drum, thereby driving the third roller 24, the second roller 23 and the first roller 22 to rotate in turn, and then driving the first double-headed threaded rod 26 to rotate. Since the two ends of the first double-headed threaded rod 26 are respectively processed into left-handed threads and right-handed threads, when the threaded rod rotates clockwise or counterclockwise, it will drive the two sliders 27 to move closer to or away from each other, thereby driving the two clamping mechanisms 5 to move closer to or away from the two sides of the rubber cloth.

[0039] See also Figure 3 The clamping mechanism 5 includes a positioning plate 51 fixedly connected to one side of the slider 27, a servo motor 52 fixedly connected to the upper side of the positioning plate 51, and a second double-headed threaded rod 53 fixedly connected to the output end of the servo motor 52, and the other end of the second double-headed threaded rod 53 is connected to a bearing seat 54, and the bearing seat 54 is fixedly connected to the positioning plate 51, and the outer sides of both ends of the second double-headed threaded rod 53 are threadedly connected to a clamping plate 55, and one side of each clamping plate 55 is fixedly connected to a positioning frame 56, and the upper side of the positioning frame 56 is fixedly connected to a first hydraulic cylinder 57, and the output end of the first hydraulic cylinder 57 is fixedly connected to a positioning bar 58, and one side of the positioning bar 58 is fixedly connected to a number of rubber columns 59.

[0040] Specifically, the rotation of the output end of the servo motor 52 is used to control the rotation of the second double-headed threaded rod 53. Since the two ends of the second double-headed threaded rod 53 are respectively processed as left-handed threads and right-handed threads, when the threaded rod rotates clockwise or counterclockwise, it will drive the two clamping plates 55 to move closer to or away from each other, thereby driving the two clamping plates 55 to move closer to or away from the upper and lower sides of the rubber cloth, and then clamping or loosening the rubber cloth. In order to prevent the rubber cloth from falling off during stretching due to insufficient clamping force, a number of rubber columns 59 are provided for auxiliary clamping. Multiple rubber columns 59 can disperse the clamping force, reduce the pressure on a single clamping point, and provide a more uniform clamping effect, ensuring that the rubber cloth can be effectively fixed at all parts. When the rubber cloth is clamped by the clamping plates 55, the output end of the first hydraulic cylinder 57 extends, driving multiple rubber columns 59 to move, thereby assisting in clamping the rubber cloth.

[0041] See also Figure 4 The environmental simulation mechanism 7 includes a lower simulation plate 71 fixedly connected to the lifting end of the electric lifting platform 6, a water guide groove 72 is provided on the upper side of the lower simulation plate 71, a second motor 74 is fixedly connected to one side of the lower simulation plate 71, and the output end of the second motor 74 is fixedly connected to a rotating shaft, which passes through the lower simulation plate 71 and is fixedly connected to an upper simulation plate 73 on the outside.

[0042] Specifically, the top of the lower simulation board 71 is used to place the rubber cloth. When the rubber cloth needs to be placed, the electric lifting platform 6 raises the lower simulation board 71 to increase the space around it, making it easier for the manipulator to place the rubber cloth on top of the lower simulation board 71. When the rubber cloth needs to be clamped and stretched, the electric lifting platform 6 lowers the lower simulation board 71 so that it is located in the middle of the two clamping mechanisms 5. The water guide trough 72 is used to collect water flowing from above to prevent it from flowing out of the lower simulation board 71 and dripping into other places where it is difficult to clean up. The rotation of the output end of the second motor 74 is used to control the rotation of the upper simulation board 73, thereby closing or opening the upper simulation board 73. When the rubber cloth needs to be placed or removed, the output end of the second motor 74 rotates ninety degrees counterclockwise to control the upper simulation board 73 to open. When the rubber cloth needs to be stretched, the output end of the second motor 74 rotates ninety degrees clockwise to control the upper simulation board 73 to close.

[0043] See also Figure 5 A plurality of first spacer blocks 75 are fixedly connected to both sides of the lower simulation plate 71 , a first avoidance groove is provided between every two first spacer blocks 75 , and a plurality of heating tubes 76 are evenly fixedly connected to the interior of the lower simulation plate 71 .

[0044] Specifically, the first avoidance groove is used to insert the rubber column 59 to prevent the rubber column 59 from hitting the lower simulation plate 71 and causing interference when clamping. The heating tube 76 is used to heat the lower simulation plate 71, thereby simulating the body temperature environment of the rubber cloth during stretching.

[0045] See also Figure 7 and Figure 8 , a number of second spacer blocks 731 are evenly fixedly connected to both sides of the upper simulation plate 73, and a second avoidance groove is provided between every two second spacer blocks 731, and a water tank 732 is fixedly connected to one side of the upper simulation plate 73, and a second hydraulic cylinder 736 is fixedly connected to one side of the water tank 732, and the output end of the second hydraulic cylinder 736 passes through the water tank 732 and is fixedly connected to a fixed plate 735, and a number of sliding columns 734 are evenly fixedly connected to one side of the fixed plate 735, and a water mist nozzle 733 is fixedly connected to one side of each sliding column 734, and the water mist nozzle 733 passes through the upper simulation plate 73, and the sliding column 734 is slidably connected to the water tank 732, and a water inlet hole is provided on the outside of the sliding column 734, which is used to pass the water source inside the water tank 732 into the water mist nozzle 733.

[0046] Specifically, the interior of the water tank 732 is used to store water, and the water will flow into the interior of the sliding column 734 through the water inlet hole, and then enter the interior of the water mist nozzle 733. The water mist nozzle 733 then sprays the water in the form of water mist on the surface of the rubber cloth, thereby simulating a high-humidity environment for the stretched rubber cloth. The extension and contraction of the output end of the second hydraulic cylinder 736 is used to control the movement of the fixed plate 735, thereby controlling the sliding of the water mist nozzle 733, and then making one end of the water mist nozzle 733 press against the upper surface of the rubber cloth and generate pressure.

[0047] The camera 9 is used to capture images of the upper surface of the rubber blanket. A database is provided inside the camera 9, which contains identification photos of different textures on the rubber blanket surface and identification photos of the rubber blanket in a flat state. The environmental simulation mechanism 7 determines the application field based on the texture of the rubber blanket surface captured by the camera 9, and simulates a suitable environment for elastic recovery performance testing.

[0048] The camera 9 takes images of the upper surface of the blanket before and after the blanket is stretched.

[0049] After the camera 9 takes the image of the upper surface of the rubber blanket, it will compare it with the identification photos of different textures on the rubber blanket surface in the internal database, pre-identify the texture of the rubber blanket surface, and take photos of the obtained upper surface of the rubber blanket to divide the application areas of this rubber blanket into three different fields: printing field, industrial field and medical field.

[0050] When camera 9 captures a smooth, textureless surface on the blanket, it determines that the blanket will subsequently be used on a printing press. During the printing process, the ink and fountain solution contain water. The solvent in the ink and the water in the fountain solution may penetrate the blanket, causing it to become damp. During the printing process, the blanket comes into direct contact with the ink and fountain solution, and is repeatedly rubbed against them. This can cause moisture to gradually penetrate the blanket. Therefore, a high-humidity environment must be simulated during the blanket stretching process. During the elastic recovery test, the water mist nozzle 733 sprays water onto the blanket surface in the form of a mist, creating a high-humidity state.

[0051] When the camera 9 captures diamond-shaped or wavy raised patterns on the surface of the rubber cloth, the camera 9 determines that the rubber cloth will be subsequently used on a conveyor in the industrial field. During the transmission process of the conveyor, the rubber cloth of the conveyor needs to bear the weight of the material. Therefore, when the rubber cloth is stretched, a high-pressure environment needs to be simulated. When the rubber cloth is tested for elastic recovery performance, the extension control fixing plate 735 at the output end of the second hydraulic cylinder 736 moves, thereby controlling the water mist nozzle 733 to slide, and then one end of the water mist nozzle 733 is pressed against the upper surface of the rubber cloth and generates pressure, causing the surface of the rubber cloth to become a high-pressure state. The pressing end of the water mist nozzle 733 is provided with rubber, so that the surface of the water mist nozzle 733 will not be damaged.

[0052] When camera 9 captures irregular slight textures on the surface of the rubber cloth, camera 9 determines that the rubber cloth will be used in surgical gloves in the medical field in the future. For some surgical gloves that need to be worn for a long time, body temperature will have a certain impact on the rubber cloth. Although body temperature is relatively low, long-term contact will cause the rubber cloth to gradually soften and deform, and its elastic recovery ability will decrease. Therefore, when the rubber cloth is stretched, it is necessary to simulate the body temperature environment. When the elastic recovery performance of the rubber cloth is tested, the heating tube 76 is started to heat the lower simulation plate 71, thereby indirectly heating the surface of the rubber cloth and changing the surface of the rubber cloth to a body temperature environment.

[0053] After the rubber cloth is stretched for a certain period of time, the output end of the first motor 28 rotates, driving the two clamping mechanisms 5 to move closer to each other until the clamping distance of the two clamping mechanisms 5 returns to the clamping distance when the rubber cloth was initially clamped. The output end of the first motor 28 stops rotating and waits for the rubber cloth to recover elastically. After waiting for a period of time, the upper simulation board 73 is opened, and the previously flat rubber cloth becomes wrinkled. The output end of the first motor 28 rotates to drive the two clamping mechanisms 5 away from each other, thereby pulling the wrinkled rubber cloth into a flat state until the camera 9 captures the rubber cloth becoming flat. The output end of the first motor 28 stops rotating. At this time, the deformation of the rubber cloth can be obtained by subtracting the clamping distance of the two clamping mechanisms 5 in the initial state from the current clamping distance of the two clamping mechanisms 5. The elastic recovery rate of the rubber cloth can be calculated based on this deformation, and then it can be determined whether the rubber cloth recovery performance is qualified.

[0054] The automatic loading and unloading of the rubber blanket is completed by the up and down movement of the electric lifting platform 6 and the automatic clamping and loosening of the clamping mechanism 5, thereby achieving the effect of automatic loading and detection, and the surface texture of the rubber blanket is photographed by the camera 9 to judge the field in which the rubber blanket needs to be applied in the future, and then the rubber blanket is controlled to simulate a matching test environment during the subsequent elastic recovery performance test, thereby improving the accuracy of the elastic recovery performance test of the rubber blanket, and effectively preventing the subsequent rubber blanket from having its elastic recovery performance lower than the elastic recovery performance previously tested due to environmental changes, thereby affecting the normal use of the subsequent rubber blanket.

[0055] Example 2: A blanket is typically made of a flexible material, such as rubber, and possesses a certain degree of flexibility and deformability. This material is susceptible to deformation when subjected to external forces. Without support on either side, the blanket will bend and sag under its own weight. Elastic recovery performance testing typically requires starting from a known, stable initial state. If the blanket is already bent and drooping when clamped, this is equivalent to a certain initial strain before the test begins. This will cause the test starting point to deviate from the normal range, resulting in test results that may not accurately reflect the blanket's true elastic recovery ability. Therefore, the following structure was designed to address this technical issue.

[0056] See also Figure 6 A guide groove is provided inside each first spacer block 75, and a spring 77 is fixedly connected to the inside of the guide groove. The other end of the spring 77 is fixedly connected to a support block 78, and the support block 78 is slidably connected to the guide groove. A vertical surface 783 is provided on one side of the support block 78, a support surface 782 is provided on the upper side of the support block 78, and an inclined surface 781 is provided on the lower side of the support block 78.

[0057] Specifically, when the rubber cloth is placed above the lower simulation board 71, the support block 78 is popped out by the spring 77, and the support surface 782 of the support block 78 supports both sides of the rubber cloth. The elastic force of the spring 77 is greater than the downward gravity of both sides of the rubber cloth. When the two sides of the rubber cloth need to be clamped, the two clamping plates 55 approach each other, and a contact surface that fits with the inclined surface 781 is provided on one side of the lower clamping plate 55. When the contact surface of the lower clamping plate 55 fits with the inclined surface 781 of the support block 78, the clamping plate 55 moves toward The thrust generated by the upward movement drives the support block 78 to slide obliquely downward along the guide groove until the vertical surface 783 of the support block 78 is flush with one side of the first spacer block 75. At this time, the two drooping sides of the rubber cloth are supported by the lower clamping plates 55, and the spring 77 is fully compressed. When the two sides of the rubber cloth begin to be stretched, the spring 77 pops out the support block 78. When the two clamping plates 55 return to the initial clamping area, the clamping plates 55 generate a thrust on the vertical surface 783 of the support block 78, driving the support block 78 to slide obliquely downward along the guide groove.

[0058] By providing the support blocks 78, when the rubber cloth is placed above the lower simulation board 71, both sides of the rubber cloth are supported by the support surfaces 782 of the support blocks 78, effectively preventing the two sides of the rubber cloth from bending and sagging due to their own gravity, thereby affecting the subsequent normal clamping. Moreover, when the two sides of the rubber cloth are clamped by the upper and lower clamping plates 55, the contact surface of the lower clamping plate 55 fits with the inclined surface 781 of the support block 78. The thrust generated by the upward movement of the clamping plate 55 drives the support block 78 to slide obliquely downward along the guide groove, so that the support block 78 enters the interior of the first spacer block 75, effectively preventing the lower clamping plate 55 from colliding with the support block 78 and interfering with the support block 78 when moving upward, and failing to effectively clamp the bottom of the rubber cloth.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0060] 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 aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An elastic recovery performance testing device for a rubber blanket, comprising two brackets (1), characterized in that: A connecting block (4) and a transmission mechanism (2) are provided on the upper side of each bracket (1), two guide slides (3) are provided in the middle of the connecting block (4) and the transmission mechanism (2), two clamping mechanisms (5) for clamping two sides of the rubber cloth are provided in the middle of the two guide slides (3), an electric lifting platform (6) is provided in the middle of the two clamping mechanisms (5), an environmental simulation mechanism (7) for respectively simulating a body temperature environment, a high humidity environment and a high pressure environment is provided on the upper side of the electric lifting platform (6), a gantry (8) is provided on the upper side of the environmental simulation mechanism (7), and a camera (9) is fixedly connected to the lower side of the gantry (8); The camera (9) is used to capture an image of the upper surface of the rubber blanket. A database is provided inside the camera (9). The database contains identification photos of different textures on the rubber blanket surface and identification photos of the rubber blanket in a flat state. The environment simulation mechanism (7) determines the application field of the rubber blanket based on the textures on the rubber blanket surface captured by the camera (9) and simulates a suitable environment for elastic recovery performance testing. The clamping mechanism (5) includes a clamping plate (55), one side of each clamping plate (55) is fixedly connected to a positioning frame (56), the upper side of the positioning frame (56) is fixedly connected to a first hydraulic cylinder (57), the output end of the first hydraulic cylinder (57) is fixedly connected to a positioning bar (58), and one side of the positioning bar (58) is fixedly connected to a plurality of rubber columns (59); The environmental simulation mechanism (7) includes a lower simulation plate (71) fixedly connected to the lifting end of the electric lifting platform (6), a water guide groove (72) is provided on the upper side of the lower simulation plate (71), a second motor (74) is fixedly connected to one side of the lower simulation plate (71), and an output end of the second motor (74) is fixedly connected to a rotating shaft, the rotating shaft passes through the lower simulation plate (71) and is fixedly connected to the outer side of the upper simulation plate (73); A plurality of first spacer blocks (75) are fixedly connected to both sides of the lower simulation plate (71), a first avoidance groove is provided between every two first spacer blocks (75), and a plurality of heating tubes (76) are evenly fixedly connected to the interior of the lower simulation plate (71); Each of the first spacer blocks (75) is provided with a guide slot inside, a spring (77) is fixedly connected to the inside of the guide slot, the other end of the spring (77) is fixedly connected to a support block (78), the support block (78) is slidably connected to the guide slot, a vertical surface (783) is provided on one side of the support block (78), a support surface (782) is provided on the upper side of the support block (78), and an inclined surface (781) is provided on the lower side of the support block (78); A plurality of second spacer blocks (731) are evenly and fixedly connected to both sides of the upper simulation plate (73), and a second avoidance groove is provided between each two second spacer blocks (731). One side of the upper simulation plate (73) is fixedly connected to a water tank (732), and one side of the water tank (732) is fixedly connected to a second hydraulic cylinder (736). The output end of the second hydraulic cylinder (736) passes through the water tank (732) and is fixedly connected to a fixing plate (735).

2. The elastic recovery performance testing device for a rubber blanket according to claim 1, characterized in that: The transmission mechanism (2) comprises a transmission box (21) fixedly connected to the upper side of the bracket (1); a fixing frame (25) is fixedly connected inside the transmission box (21); a bearing on one side of the fixing frame (25) is connected to a second roller (23) and a bearing on the other side of the fixing frame (25) is connected to a third roller (24); a first motor (28) is fixedly connected inside the transmission box (21); an output end of the first motor (28) is fixedly connected to a fourth rotating drum; and the fourth rotating drum is connected to the third roller (24) by a belt.

3. The elastic recovery performance testing device for a rubber blanket according to claim 2, characterized in that: A first roller (22) is provided on both sides of the second roller (23), the two first rollers (22) are connected to the bearings of the transmission box (21), the second roller (23) is connected to the two first rollers (22) by belts, a first double-headed threaded rod (26) is fixedly connected to the middle of each first roller (22), one end of the first double-headed threaded rod (26) passes through the transmission box (21) and is connected to the bearing of the guide slide seat (3), and the outer sides of both ends of the guide slide seat (3) are threadedly connected to sliders (27).

4. The elastic recovery performance testing device for a rubber blanket according to claim 3, characterized in that: The clamping mechanism (5) includes a positioning plate (51) fixedly connected to one side of the slider (27), a servo motor (52) fixedly connected to the upper side of the positioning plate (51), an output end of the servo motor (52) fixedly connected to a second double-headed threaded rod (53), and a bearing at the other end of the second double-headed threaded rod (53) connected to a seat (54), and the seat (54) is fixedly connected to the positioning plate (51).

5. The elastic recovery performance testing device for a rubber blanket according to claim 4, characterized in that: The outer sides of both ends of the second double-ended threaded rod (53) are threadedly connected to the clamping plate (55).

6. The elastic recovery performance testing device for a rubber blanket according to claim 1, characterized in that: A plurality of sliding columns (734) are evenly fixedly connected to one side of the fixed plate (735), and a water mist nozzle (733) is fixedly connected to one side of each sliding column (734). The water mist nozzle (733) passes through the upper simulation plate (73). The sliding columns (734) are slidably connected to the water tank (732). A water inlet hole is provided on the outer side of the sliding column (734), and the water inlet hole is used to pass the water source inside the water tank (732) into the water mist nozzle (733).

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