A tensile property detection device for a rubber blanket

Abstract

The present invention discloses a tensile property detection device for a blanket, which relates to the technical field of blanket property detection. The device includes a frame and a remote control terminal. A first support plate is welded above the frame. A rotating frame body is installed in the middle of the first support plate. A plurality of connecting rods are arranged on one side end face of the rotating frame body. An installation sleeve is arranged on one side of the rotating frame body. The other ends of the plurality of connecting rods are fixedly connected to the installation sleeve. A second driving part is fixedly connected to the side of the installation sleeve away from the connecting rods through a rod body. A motor is installed inside one side of the installation sleeve. A driving gear is arranged on one side of the motor. A first mounting rack is installed on the inner wall of the rotating frame body. The present invention realizes the multi-element detection of the tensile property of the blanket, and greatly improves the accuracy of the tensile property of the blanket.

Description

Technical Field

[0001] The present invention relates to the technical field of blanket performance detection, and specifically to a tensile performance detection device for blankets. Background Art

[0002] A blanket is an elastic material specifically used in the printing industry, usually used as an intermediate medium in the offset printing process to transfer images from the printing plate to paper or other printing materials. The blanket has excellent elasticity and wear resistance, and can maintain good performance under high pressure and high-speed operation conditions to ensure the quality of printed products.

[0003] The tensile property is a very crucial technical index for the blanket, which directly affects the service life, printing quality and production stability of the blanket. Therefore, it is very necessary to detect the tensile property of the blanket, which helps to screen out products suitable for specific printing requirements and ensure the smooth progress of the printing process.

[0004] Most of the current blanket tensile detection devices adopt a single tensile detection mode, which has certain limitations, resulting in a large error in the final detection result. Therefore, it is very necessary to design a tensile performance detection device for blankets. Summary of the Invention

[0005] The purpose of the present invention is to provide a tensile performance detection device for blankets to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A tensile performance detection device for blankets, including a frame and a remote control terminal. A first support plate is welded above the frame, a rotating frame body is installed in the middle of the first support plate, several connecting rods are arranged on one side end face of the rotating frame body, an installation sleeve is arranged on one side of the rotating frame body, the other ends of the several connecting rods are fixedly connected to the installation sleeve, and the side of the installation sleeve away from the connecting rods is fixedly connected to a driving part two through a rod body;

[0007] A motor is installed inside one side of the installation sleeve, a driving gear is arranged on one side of the motor, a first mounting frame is installed on the inner wall of the rotating frame body, an installation groove is opened on one side of the first mounting frame, a first rack is slidably connected in the installation groove of the first mounting frame, a second mounting frame is arranged on one side of the first mounting frame, an installation groove is also opened on one side of the second mounting frame, a second rack is slidably connected in the installation groove of the second mounting frame, and both the first rack and the second rack are meshed with the driving gear;

[0008] An upper detection roller is arranged on one side of the first rack, and a lower detection roller is arranged on one side of the second rack;

[0009] Inside the rotating frame body, a first deviation rectifying rod group and a second deviation rectifying rod group are provided.

[0010] According to the above technical solution, on the upper side of the first rack away from the serrated end, a positioning ring one is fixedly connected by a rod, the inside of the positioning ring one is fixedly connected with one end of the upper detection roller, on the lower side of the second rack away from the serrated end, a positioning ring two is fixedly connected, the inside of the positioning ring two is fixedly connected with one end of the lower detection roller, and a number of pressure sensors one and a number of pressure sensors two are respectively installed inside the upper detection roller and the lower detection roller.

[0011] According to the above technical solution, a rod is fixedly connected to the output end of the motor through a coupling, the middle part of the driving gear is fixedly connected with the other end of the rod, a connecting plate is arranged in the middle of one side of the second mounting frame, a connecting rod is connected by a bearing in the middle of the connecting plate, and the middle part of the driving gear is fixedly connected to one end of the connecting rod.

[0012] According to the above technical solution, the first deviation rectifying rod group includes two deviation rectifying rods driven to expand and contract by electric telescopic rods, and pressure sensors three are installed on the deviation rectifying rods. The second deviation rectifying rod group has the same structure as the first deviation rectifying rod group. An electric telescopic rod of one of the deviation rectifying rods in the first deviation rectifying rod group is arranged on the rod of the positioning ring one, and an electric telescopic rod of one of the deviation rectifying rods in the second deviation rectifying rod group is arranged on the rod of the positioning ring two.

[0013] According to the above technical solution, a detection platform is riveted on the upper surface of the frame, a second support plate is welded on the other side above the frame, an installation box is fixedly connected to the outside of the first support plate, the driving part two is installed in the installation box, a cross plate is arranged above the first support plate, and a camera is installed on the bottom surface of the cross plate.

[0014] According to the above technical solution, a disc is connected by a bearing in the middle of the second support plate. Two slideways are opened on the surface of the disc. The other ends of the upper detection roller and the lower detection roller are respectively slidably connected in a corresponding slideway. On the surface of the disc on the side where the slideways are opened, the other deviation rectifying rods of the first deviation rectifying rod group and the second deviation rectifying rod group are fixedly connected, and the electric telescopic rods of the other deviation rectifying rods of the first deviation rectifying rod group and the second deviation rectifying rod group are fixedly connected to the surface of the disc.

[0015] According to the above technical solution, two chutes are opened on the surface of the detection platform. A lead screw one is connected by a bearing inside the chute. One end of the lead screw one is connected to the driving part one through a coupling. A slider is rotationally connected to the rod body of the lead screw one through a thread. A first support is arranged above the detection platform, and the bottom surface of the first support is fixedly connected to the upper surface of the slider.

[0016] According to the above technical solution, an electric slide rail is fixedly connected above the first support. Two sliding seats are slidably connected above the electric slide rail. Two clamping assemblies are fixedly connected to the upper surface of the sliding seats. A second support is arranged on the upper surface of the detection platform in parallel with the first support. The second support has the same structure as the first support. The bottom surface of the second support is fixedly connected to the upper surface of the detection platform. An electric slide rail is also fixedly connected above the second support. Two clamping assemblies are also arranged on the electric slide rail.

[0017] According to the above technical solution, the clamping assembly includes a connecting seat. The bottom surface of the connecting seat is fixedly connected to the upper surface of the sliding seat. A first rotating motor is installed inside the connecting seat. A fixture seat is installed above the connecting seat. The output end of the first rotating motor is connected to a rod through a coupling. Two clamping plates are slidably connected to both ends of the rod through threads. A positioning rod is passed through the plate body of the clamping plate. The positioning rod is fixedly connected to the inner side of the fixture seat.

[0018] According to the above technical solution, a convex group is installed inside the clamping plate. A convex plate is fixedly connected to one side of the convex group close to the positioning rod. A lead screw two with opposite thread directions at both ends is rotationally connected to the middle of the convex plate through threads. The bottom of the lead screw two is fixedly connected to a second rotating motor through a coupling. The second rotating motor is installed inside the connecting seat.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by setting a rotating frame body, a driving gear, a rack, and a detection roller, a dual-stage detection mode combining horizontal stretching and compound stretching is realized, overcoming the limitations of traditional single stretching tests, being able to comprehensively evaluate the tensile properties of the blanket in different stress directions, and significantly improving the comprehensiveness and accuracy of the detection results; through the coordinated action of the deviation correction rod group and the pressure sensor, the position deviation of the blanket is adjusted in real time, and multi-dimensional feedback data is obtained through the pressure sensor and the camera, effectively reducing the test errors caused by deviation or uneven stress, and ensuring the stability and reliability of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the overall structural schematic diagram of the present invention from another perspective;

[0023] Figure 3 is the present invention Figure 2Schematic diagram of the enlarged structure of area A;

[0024] Figure 4 It is a schematic diagram of the overall structure from the rear view of the frame of the present invention;

[0025] Figure 5 It is the present invention Figure 4 Schematic diagram of the enlarged structure of area B;

[0026] Figure 6 It is a schematic diagram of the structure of the detection roller and its driving part of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the support of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the fixture installation of the present invention;

[0029] Figure 9 It is the present invention Figure 8 Schematic diagram of the enlarged structure of area C;

[0030] Figure 10 It is a schematic diagram of the structure of the rotating frame after rotation of the present invention;

[0031] Figure 11 It is a top view schematic diagram of the detection platform of the present invention;

[0032] Figure 12 It is a schematic diagram of dividing the blanket into several units of the present invention;

[0033] In the figure: 1, frame; 2, detection platform; 3, chute; 4, lead screw one; 5, slider; 6, first support; 7, electric slide rail; 71, sliding seat; 8, clamping assembly; 81, connecting seat; 82, rotary motor one; 83, fixture seat; 84, positioning rod; 85, clamping plate; 86, protrusion group; 9, second support; 10, first support plate; 11, second support plate; 12, rotating frame; 121, connecting rod; 122, driving part two; 13, mounting sleeve; 14, motor; 15, driving gear; 16, first mounting frame; 17, first rack; 18, second mounting frame; 19, second rack; 20, upper detection roller; 21, lower detection roller; 22, first deviation correction rod group; 23, second deviation correction rod group; 24, disc; 25, slideway; 26, mounting box; 27, camera. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1;

[0036] Please refer to Figure 1-12 , the present invention provides a technical solution: a tensile property detection device for a rubber blanket, including a frame 1 and a remote control terminal. The remote control terminal is independently arranged outside the device and is used for setting detection parameters and processing and feedback of detection data;

[0037] The upper surface of the frame 1 is riveted with a detection platform 2 for performing main detection operations. Two chutes 3 are opened on the surface of the detection platform 2. A first lead screw 4 is connected by bearings inside the chute 3. One end of the first lead screw 4 is connected by a coupling to a first driving part. The rotation of the first lead screw 4 is realized by starting the first driving part;

[0038] A slider 5 is rotationally connected to the rod body of the first lead screw 4 by a thread. Above the detection platform 2 is provided a first support 6, which is composed of two vertical support columns and a horizontal cross beam. The bottom surface of the support column of the first support 6 is fixedly connected to the upper surface of the slider 5. Thus, when the first driving part is started, the movement of the slider 5 is realized by the rotation of the first lead screw 4, and the displacement of the first support 6 is driven;

[0039] As Figure 7 , Figure 8 shown, an electric slide rail 7 is fixedly connected above the first support 6. Two sliding seats 71 are slidably connected above the electric slide rail 7. Two clamping components 8 are fixedly connected to the upper surface of the sliding seat 71 for clamping and positioning the corners of the rubber blanket to facilitate subsequent detection operations. A second support 9 is arranged on the upper surface of the detection platform 2 in parallel with the first support 6, and the second support 9 has the same structure as the first support 6. The bottom surface of the support column of the second support 9 is fixedly connected to the upper surface of the detection platform 2. An electric slide rail 7 is also fixedly connected above the second support 9, and two clamping components 8 are also arranged on this electric slide rail 7, so as to realize the clamping of the four corners of the rubber blanket; the displacement of the clamping component 8 on it is realized by the drive of the electric slide rail 7, so as to adjust the distance between the two clamping components 8 on the same electric slide rail 7, so that the distance between the two clamping components 8 adapts to rubber blankets of different widths;

[0040] Furthermore, as Figure 8 , Figure 9As shown, the clamping assembly 8 includes a connecting seat 81. The bottom surface of the connecting seat 81 is fixedly connected to the upper surface of the sliding seat 71. A first rotating motor 82 is installed inside the connecting seat 81. Above the connecting seat 81, a fixture seat 83 is installed. The output end of the first rotating motor 82 is connected to a rod through a coupling. The rod has a structure with threads in opposite directions at both ends. Two clamping plates 85 are slidably connected to both ends of the rod through the threads. A positioning rod 84 is passed through the plate body of the clamping plate 85. The positioning rod 84 is fixedly connected to the inner side of the fixture seat 83, thereby realizing the displacement guiding of the clamping plate 85. When the first rotating motor 82 is driven, the rod rotates, causing the clamping plates 85 to move towards or away from each other, and further controlling the clamping situation of the clamping plates 85.

[0041] Furthermore, a number of through holes are formed on the clamping surface of the clamping plate 85. Inside the clamping plate 85, a protruding group 86 is installed. The protruding group 86 is a plate structure, and on the side close to the clamping surface of the clamping plate 85, there are a number of protruding columns corresponding to the through holes. The protruding columns are made of wear-resistant material and will not cause a decrease in clamping strength due to multiple frictions with the rubber blanket. On the side of the plate of the protruding group 86 close to the positioning rod 84, a convex plate is fixedly connected. In the middle of the convex plate, a second lead screw with threads in opposite directions at both ends is rotationally connected through threads. The bottom of the second lead screw is fixedly connected to a second rotating motor through a coupling. The second rotating motor is installed inside the connecting seat 81. When the second rotating motor is driven, the second lead screw rotates to drive the protruding group 86 to move towards each other, thereby controlling the telescoping of the protruding columns in the through holes. By the different heights of the protruding columns protruding from the through holes, the roughness of the clamping surface of the clamping plate 85 can be adjusted. Inside the clamping surface of one of the clamping plates 85 in each clamping assembly 8, a displacement sensor is installed near the fixed end close to the protruding group 86, which is used to feedback the displacement distance of the rubber blanket inside the clamping plate 85. Furthermore, after the rubber blanket is clamped by the clamping plate 85, the roughness is adjusted through the displacement of the rubber blanket due to its smooth surface. Among them, the protruding height of the protruding group 86 is proportional to the displacement distance of the rubber blanket inside the clamping plate 85.

[0042] Above the frame 1, a first support plate 10 is welded. On the side of the frame 1 opposite to the first support plate 10 above, a second support plate 11 is welded. The upper parts of the first support plate 10 and the second support plate 11 are fixedly connected with a cross plate, thereby ensuring the overall stability of the device. On the bottom surface of the cross plate, a camera 27 is fixedly connected. The camera 27 is provided with an image processing function, which can judge the deformation situation of the rubber blanket on the detection platform 2 below, and can thus observe the detection state of the rubber blanket in real time and monitor the process of the tensile property detection of the rubber blanket.

[0043] Among them, the first driving part, the electric slide rail 7, the first rotating motor 82, the second rotating motor, and the camera 27 are all signal-connected to the remote control terminal.

[0044] In this embodiment, according to the size of the blanket, namely length, width and thickness, the driving part one is activated to control the rotation of the lead screw one 4, so that the first support 6 is displaced. At the same time, the distance between the two sliding seats 71 on the electric slide rail 7 is preset. The blanket is placed between the first support 6 and the second support 9 on the detection platform 2. The four corners of the blanket are respectively placed between the two clamping plates 85 of each clamping assembly 8. The rotation motor one 82 is controlled to clamp the blanket. After the positioning clamping of the blanket is completed, the electric slide rails 7 on the first support 6 and the second support 9 are controlled, so that the two sliding seats 71 on them are displaced in opposite directions synchronously, so that the blanket is stretched horizontally. This displacement stroke is set as L1. Among them, L1 is obtained and set according to the maximum stretching limit of the blanket;

[0045] When the displacement of L1 is carried out, the displacement sensor feeds back the displacement situation of the blanket, and the friction force between the clamping plate 85 and the blanket is increased by increasing the height of the protruding column protruding, so as to ensure that the blanket will not slide out of the clamping assembly 8 during the horizontal stretching test and ensure the accuracy of the test result;

[0046] After the horizontal stretching, the two sliding seats 71 on the same electric slide rail 7 are displaced towards each other by a stroke of L1 to complete the detection of the blanket. At this time, the fracture and deformation conditions of the blanket are observed through the camera 27. If there is fracture or deformation, it indicates that the tensile property of the blanket is unqualified. If there is no fracture or deformation, it indicates that the tensile property of the blanket is qualified.

[0047] Through the above embodiment, the four corners of the blanket are accurately clamped and positioned, and the clamping distance can be adjusted to adapt to blankets of different widths. At the same time, the deformation situation of the blanket is monitored in real time through the camera 27 to ensure the accuracy during the test, and the efficiency and accuracy of the horizontal stretching test of the blanket are significantly improved.

[0048] Embodiment two;

[0049] As Figure 1 、 Figure 10 shown, the first support plate 10 has a structure with a circular hollow in the middle. A rotating frame body 12 is rotatably connected in the hollow part of the first support plate 10 through a bearing. As Figure 6 shown, the rotating frame body 12 is a ring structure. Four connecting rods 121 are arranged on one side end face of the rotating frame body 12. An installation sleeve 13 is arranged on one side of the rotating frame body 12 close to the connecting rods 121. The other ends of the connecting rods 121 are fixedly connected to the outer surface of the installation sleeve 13. The side of the installation sleeve 13 away from the connecting rods 121 is fixedly connected with a driving part two 122 through a rod body. As Figure 2As shown, an installation box 26 is fixedly connected to the outer side of the first support plate 10, which is used to arrange the wires inside the rotating frame 12. The second driving part 122 is installed in the installation box 26. Thus, when the second driving part 122 is started, it will drive the rotating frame 12 to rotate. It should be noted that the rotation direction of the rotating frame 12 is in accordance with Figure 6 the clockwise direction shown;

[0050] A motor 14 is installed inside one side of the installation sleeve 13 away from the second driving part 122. A rod is fixedly connected to the output end of the motor 14 through a coupling. The other end of the rod is fixedly connected to a driving gear 15, and the driving gear 15 is rotated by the drive of the motor 14; a first mounting frame 16 is fixedly connected to the inner wall of the rotating frame 12. An installation groove is formed on one side of the first mounting frame 16 close to the center of the rotating frame 12. A first rack 17 is slidably connected in the installation groove of the first mounting frame 16. A second mounting frame 18 is arranged on one side of the first mounting frame 16. An installation groove of the same kind is formed on one side of the second mounting frame 18 close to the first mounting frame 16. A second rack 19 is slidably connected in the installation groove of the second mounting frame 18. Both the first rack 17 and the second rack 19 are meshed and connected. And a connecting plate is arranged in the middle of one side of the second mounting frame 18 away from the driving gear 15. A connecting rod is connected to the middle of the connecting plate through a bearing. The connecting rod is fixedly connected to the middle of the driving gear 15, so as to position the driving gear 15, and the displacement of the first rack 17 and the second rack 19 in opposite directions is driven by the rotation of the driving gear 15;

[0051] Furthermore, a first positioning ring is fixedly connected to the upper side of one side of the first rack 17 away from the serrated end through a rod. One end of an upper detection roller 20 is fixedly connected to the inside of the first positioning ring. A second positioning ring is fixedly connected to the lower side of one side of the second rack 19 away from the serrated end through a rod. One end of a lower detection roller 21 is fixedly connected to the inside of the second connecting ring. It should be noted that the vertical distances from the upper detection roller 20 and the lower detection roller 21 to the horizontal line where the center of the rotating frame 12 is located are equal respectively; a plurality of pressure sensors one and a plurality of pressure sensors two are respectively installed inside the upper detection roller 20 and the lower detection roller 21, and the plurality of pressure sensors one and the plurality of pressure sensors two are closely arranged and evenly distributed on the surfaces of the upper detection roller 20 and the lower detection roller 21, so that the pressure conditions on the entire surfaces of the upper detection roller 20 and the lower detection roller 21 can be detected. Thus, when the rotating frame 12 rotates, the upper detection roller 20 and the lower detection roller 21 are respectively in contact with the upper surface and the lower surface of the blanket, and then the force condition of the blanket can be fed back. By comparing the force magnitude with the maximum tensile limit value of the blanket material property, it can be determined whether the blanket is slack;

[0052] A first deviation rectifying rod group 22 and a second deviation rectifying rod group 23 are arranged inside the rotating frame 12. Refer to Figure 5 、 Figure 11, wherein, the first deviation rectifying rod group 22 includes two deviation rectifying rods driven to expand and contract by electric telescopic rods. The deviation rectifying rods are in a right-angle rod structure, and one side rod is parallel to the detection roller, and the other side rod is perpendicular to the detection roller. A pressure sensor three is arranged on the rod perpendicular to the detection roller. The second deviation rectifying rod group 23 also includes two deviation rectifying rods driven to expand and contract by electric telescopic rods;

[0053] One of the deviation rectifying rods in the first deviation rectifying rod group 22 is arranged on the rod of the first positioning ring, and the electric telescopic rod on this deviation rectifying rod is fixedly connected to the rod of the upper detection roller 20. Similarly, one of the deviation rectifying rods in the second deviation rectifying rod group 23 is arranged on the rod of the second positioning ring, and the electric telescopic rod on this deviation rectifying rod is fixedly connected to the rod of the lower detection roller 21. Thus, through the drive of the electric telescopic rod, the extension of the deviation rectifying rod close to the side of the rotating frame body 12 is controlled;

[0054] Furthermore, as Figure 2-5 shown, a circular hollow is also provided in the middle of the second support plate 11, and a disc 24 is connected to the hollow of the second support plate 11 by a bearing. Two slideways 25 are provided on the disc 24. The other ends of the upper detection roller 20 and the lower detection roller 21 are respectively slidably connected in a corresponding slideway 25. Thus, when the driving gear 15 drives the first rack 17 and the second rack 19 to displace, the synchronous displacement of the upper detection roller 20 and the lower detection roller 21 will be driven;

[0055] On one side surface of the disc 24 where the slideways 25 are provided, the other deviation rectifying rod of the first deviation rectifying rod group 22 and the other deviation rectifying rod of the second deviation rectifying rod group 23 are respectively fixedly connected, and their corresponding electric telescopic rods are fixedly connected to the surface of the disc 24. Thus, when detecting the blanket, the side where the blanket is offset is rectified to prevent the accuracy of the detection result from being reduced due to the offset phenomenon during the detection process.

[0056] Among them, the second driving part 122, the motor 14, several electric telescopic rods, several pressure sensors one, several pressure sensors two and the pressure sensor three are all in signal connection with the remote control end.

[0057] In this embodiment, the maximum stretching limit value T1 of the blanket is set according to the material characteristics of the blanket. The blanket is clamped and positioned by the clamping plate 85. At this time, the vertical distance from the upper detection roller 20 to the horizontal line where the center of the rotating frame body 12 is located is set as H1. At this time, the second driving part 122 is started to rotate the rotating frame body 12, so that the upper detection roller 20 and the lower detection roller 21 continuously approach the surface of the blanket. When data feedback appears in both the pressure sensor one and the pressure sensor two, the second driving part 122 stops driving;

[0058] At this time, the camera 27, several first pressure sensors and several second pressure sensors are used to observe whether the position of the blanket on the detection roller is symmetric about the center of the detection roller. If it is not symmetric, the electric telescopic rod is activated to drive the deviation correction rod to perform preliminary deviation correction on the corresponding position of the blanket. Specifically, when the blanket contacts the surface of the detection roller, several first pressure sensors and several pressure sensors start to feedback the pressure conditions on the entire surfaces of the upper detection roller 20 and the lower detection roller 21. The preliminary contact pressure feedback by several first pressure sensors and several pressure sensors at this time is set as T2. When the pressure sensors under pressure are symmetrically distributed about the roller center on the force-bearing surface of the detection roller, it indicates that the position of the blanket has been calibrated. If the number of pressure sensors under pressure on one side of the detection roller surface is more than that on the other side, the camera 27 is used to judge and confirm the deviation situation. If the judgment conforms to the feedback of the pressure sensors, the electric telescopic rod on the side with more pressure sensors under pressure on the detection roller drives the deviation correction rod to extend and insert between the blanket and the detection roller. The side rod of the deviation correction rod perpendicular to the detection roller contacts the side surface of the blanket, so as to push out the blanket and displace it a certain distance on the surface of the detection roller until the several pressure sensors on both sides are symmetrically pressured, thus completing the deviation correction operation; if the judgment does not conform to the feedback of the pressure sensors, the pressure sensors need to be detected, which not only ensures that the blanket is in the centered position on the detection roller but also realizes the calibration of the pressure sensors;

[0059] After completing the deviation correction, the second driving part 122 is started continuously to perform composite tensile detection on the blanket, that is, through the flipping of the rotating frame 12, the upper detection roller 20 and the lower detection roller 21 are driven to continuously approach the surface of the blanket until a pull is generated on the surface of the blanket to realize the stretching of the blanket. At this time, the first pressure sensors and the second pressure sensors feedback the force conditions of the blanket until the data feedback by the first pressure sensors and the second pressure sensors reach T1, then the second driving part 122 stops and rotates back, so that the blanket is no longer in the stretched state. At this time, the pressure data continuously feedback by several first pressure sensors and several second pressure sensors are set as T3 and T4, and are compared with the pressure T2 when initially contacting the blanket to judge the relaxation situation of the blanket, and the deviation situation of the blanket is observed through the camera 27;

[0060] Specifically, if both T3 and T4 are equal to T2, and the pressure sensors of several first pressure sensors and several second pressure sensors under pressure are symmetrically distributed about the center of the detection roller, there is no relaxation or deviation situation, indicating that the composite tensile property of the blanket is qualified;

[0061] If any one of T3 and T4 is less than T2, but the pressure sensors of several first pressure sensors and several second pressure sensors under pressure are still symmetrically distributed about the center of the detection roller, only the relaxation situation occurs. Since the applied tensile force is within the maximum stretching limit value of the blanket, the composite tensile property of the blanket is unqualified;

[0062] If both T3 and T4 are equal to T2, but the pressure sensors among several pressure sensors one and several pressure sensors two that are under pressure are not symmetrically distributed with respect to the center of the detection roller, only an offset situation will occur. It is determined by the displacement sensor that the offset is caused by the displacement of the blanket within the clamping plate 85. At this time, the same steps as the preliminary rectification are taken, and the corresponding rectification rod is used for rectification according to the corresponding blanket part. After rectification, the detection roller is controlled to rotate a certain distance and then the blanket is stretched. If there is no longer an offset at this time, it indicates that the surface of the blanket is smooth and the elasticity is uniform;

[0063] If it is determined by the displacement sensor that the blanket does not displace within the clamping plate 85, and after taking the same steps as the preliminary rectification, there is still an offset at this time, it indicates uneven pressure distribution and there is a quality problem with the blanket;

[0064] If any value of T3 or T4 is less than T2, and the pressure sensors among several pressure sensors one and several pressure sensors two that are under pressure are not symmetrically distributed with respect to the center of the detection roller, indicating that the blanket has a situation of relaxation and offset, then directly mark this blanket as unqualified.

[0065] Through the above embodiments, not only can the maximum stretching limit of the blanket be evaluated, but also whether the blanket has relaxation or offset can be judged based on the information fed back by the pressure sensors, so as to more comprehensively evaluate its tensile performance. At the same time, the use of the rectification rod effectively avoids the error caused by the offset of the blanket during the detection process and improves the reliability of the detection result.

[0066] Embodiment Three;

[0067] Based on Embodiment Two, when the data is first fed back by pressure sensor one and pressure sensor two, a preliminary rectification of the blanket is carried out. At this time, when pressure sensor three contacts the blanket, the first pressure value p1 will be obtained. Then the rotating frame 12 stops rotating and returns to the initial position. Based on Embodiment One, the blanket is horizontally stretched, and the width change of the blanket is observed through the camera 27. If the width changes, it indicates that the horizontal tensile performance of the blanket is unqualified. At this time, the blanket is marked and taken out. Otherwise, it indicates that the horizontal tensile performance of this blanket is qualified;

[0068] At this time, the rubber cloth with qualified horizontal tensile performance is further detected. Specifically, the second driving part 122 is started, so that the first pressure sensor and the second pressure sensor obtain data feedback again. At this time, in order to prevent the rubber cloth from shifting during horizontal stretching, rectification is carried out again. The second pressure value p2 is obtained through the third pressure sensor. When the rectification is completed, if any p2 is equal to p1, it means that the horizontal tensile performance of the rubber cloth is qualified and its edge quality is also good. When any third pressure sensor detects that p2 < p1, it means that although the width of the rubber cloth does not change after horizontal stretching, the edge is bent and uneven due to pulling. At this time, the rubber cloth is marked;

[0069] For any of the above situations, the composite tensile test is continued. When the first pressure sensor and the second pressure sensor feedback that T1 has been reached, the rotating frame 12 is controlled to continue rotating, and it is observed whether the data feedback by the first pressure sensor and the second pressure sensor increases, so as to apply additional tension to observe whether the rubber cloth breaks through the maximum tensile limit or uneven stretching occurs;

[0070] If it no longer increases, it means that the rubber cloth has reached the maximum tensile limit. At this time, the detection roller displaces in the direction of the driving gear 15. During this process, the data feedback by the first pressure sensor and the second pressure sensor is continuously read. When the read value is 0, it means that the rubber cloth is slack and the rubber cloth is unqualified. When the read data remains unchanged, it means that it is not slack and the rubber cloth is qualified;

[0071] If it continues to increase, it means that the maximum tensile limit of the rubber cloth exceeds the preset range. At this time, the driving gear 15 is rotated, and the detection roller continues to displace a certain distance away from the driving gear 15. In order to keep the detection roller at the same height, the rotating frame 12 rotates accordingly. The surface image of the rubber cloth is captured by the camera 27, as Figure 12 shown. The surface of the rubber cloth is divided into N units. The areas detected by the first pressure sensor and the second pressure sensor that exceed the preset range are marked as over-limit units, that is, the shaded units shown in the figure. The number of detected over-limit units n is set, and the area ratio R1 = n / N is calculated. The uniformity standard value of the rubber cloth is set as R2 (0 < R2 < 1);

[0072] When R1 ≤ R2, the uniformity of the rubber cloth meets the standard and the rubber cloth is qualified; when R1 > R2, the uniformity of the rubber cloth is poor and the rubber cloth is unqualified.

[0073] Furthermore, among the blanket sheets that are all judged to be qualified in the above cases, when there is a blanket sheet with p2 < p1, at this time, through the composite tensile property test, a certain amount of longitudinal stretching is performed on the blanket sheet. Then, the deviation rectifying rod is driven to make the pressure sensor three read the side condition p3 of the blanket sheet. If p3 = p1, it indicates that the bending at the edge of the blanket sheet has become uniform through longitudinal stretching, the plasticity of the blanket sheet is good, and the tensile property is qualified; if p3 < p1, it indicates that this blanket sheet is unqualified.

[0074] Through the above embodiments, the double-stage detection integrating horizontal stretching and composite stretching is carried out to analyze the quality characteristics of the blanket sheet in multiple aspects such as plasticity and uniformity, and a more detailed quality evaluation standard for the blanket sheet is provided.

[0075] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0076] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used 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 recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tensile performance testing device for a rubber blanket, comprising a frame (1) and a remote control terminal, characterized in that: A first support plate (10) is welded above the frame (1), a rotating frame body (12) is installed in the middle of the first support plate (10), a plurality of connecting rods (121) are arranged on one end surface of the rotating frame body (12), a mounting sleeve (13) is arranged on one side of the rotating frame body (12), the other ends of the plurality of connecting rods (121) are fixedly connected to the mounting sleeve (13), and a side of the mounting sleeve (13) away from the connecting rods (121) is fixedly connected to a second driving part (122) via a rod body; A motor (14) is installed inside one side of the mounting sleeve (13), and a driving gear (15) is provided on one side of the motor (14); a first mounting frame (16) is installed on the inner wall of the rotating frame body (12), and a mounting groove is provided on one side of the first mounting frame (16), and a first rack (17) is slidably connected in the mounting groove of the first mounting frame (16); a second mounting frame (18) is provided on one side of the first mounting frame (16), and a mounting groove is also provided on one side of the second mounting frame (18), and a second rack (19) is slidably connected in the mounting groove of the second mounting frame (18), and the first rack (17) and the second rack (19) are both meshed and connected with the driving gear (15); An upper detection roller (20) is provided on one side of the first rack (17), and a lower detection roller (21) is provided on one side of the second rack (19); A first deviation-correcting rod group (22) and a second deviation-correcting rod group (23) are arranged inside the rotating frame body (12); A plurality of first pressure sensors and a plurality of second pressure sensors are respectively installed inside the upper detection roller (20) and the lower detection roller (21); The first deflection correcting rod group (22) comprises two deflection correcting rods that are driven to extend and retract by an electric telescopic rod, and pressure sensors 3 are installed on the deflection correcting rods. The second deflection correcting rod group (23) has the same structure as the first deflection correcting rod group (22); The upper surface of the frame (1) is riveted with a detection platform (2), and two slide grooves (3) are provided on the surface of the detection platform (2); the internal bearing of the slide groove (3) is connected to a screw rod (4); one end of the screw rod (4) is connected to a driving unit (1) via a coupling; a slider (5) is rotatably connected to the rod body of the screw rod (4) via a thread; a first support (6) is provided above the detection platform (2); the bottom surface of the first support (6) is fixedly connected to the upper surface of the slider (5); An electric slide rail (7) is fixedly connected to the top of the first support (6), two sliding seats (71) are slidably connected to the top of the electric slide rail (7), and two clamping assemblies (8) are fixedly connected to the upper surface of the sliding seat (71); a second support (9) is arranged on the upper surface of the detection platform (2) in parallel with the first support (6), the second support (9) has the same structure as the first support (6), the bottom surface of the second support (9) is fixedly connected to the upper surface of the detection platform (2), and the electric slide rail (7) is also fixedly connected to the top of the second support (9), and two clamping assemblies (8) are also arranged on the electric slide rail (7); The clamping assembly (8) comprises a connecting seat (81), the bottom surface of the connecting seat (81) is fixedly connected to the upper surface of the sliding seat (71), a rotating motor (82) is installed inside the connecting seat (81), a clamp seat (83) is installed above the connecting seat (81), the output end of the rotating motor (82) is connected to a rod via a coupling, two clamping plates (85) are slidably connected at both ends of the rod via threads, a positioning rod (84) is passed through the plate body of the clamping plate (85), and the positioning rod (84) is fixedly connected to the inner side of the clamp seat (83).

2. The tensile performance testing device for a rubber blanket according to claim 1, characterized in that: A first positioning ring is fixedly connected to the upper side of the first rack (17) away from the sawtooth end via a rod, and the interior of the first positioning ring is fixedly connected to one end of an upper detection roller (20). A second positioning ring is fixedly connected to the lower side of the second rack (19) away from the sawtooth end, and the interior of the second positioning ring is fixedly connected to one end of a lower detection roller (21).

3. The tensile performance testing device for a rubber blanket according to claim 2, characterized in that: The output end of the motor (14) is fixedly connected to a rod via a coupling, the middle portion of the drive gear (15) is fixedly connected to the other end of the rod, a connecting plate is provided in the middle portion of one side of the second mounting frame (18), a connecting rod is connected to a bearing in the middle portion of the connecting plate, and the middle portion of the drive gear (15) is fixedly connected to one end of the connecting rod.

4. The tensile performance testing device for a rubber blanket according to claim 3, characterized in that: The rod of the first positioning ring is provided with an electric telescopic rod of a deviation-correcting rod in the first deviation-correcting rod group (22), and the rod of the second positioning ring is provided with an electric telescopic rod of a deviation-correcting rod in the second deviation-correcting rod group (23).

5. The tensile performance testing device for a rubber blanket according to claim 4, characterized in that: A second support plate (11) is welded to the other side above the frame (1); an installation box (26) is fixedly connected to the outside of the first support plate (10); the second drive unit (122) is installed in the installation box (26); a horizontal plate is provided above the first support plate (10); and a camera (27) is installed on the bottom surface of the horizontal plate.

6. The tensile performance testing device for a rubber blanket according to claim 5, characterized in that: A disc (24) is connected to a central bearing of the second support plate (11), two slideways (25) are provided on the surface of the disc (24), the other ends of the upper detection roller (20) and the lower detection roller (21) are respectively slidably connected in a corresponding slideway (25), and the other deviation-correcting rod of the first deviation-correcting rod group (22) and the other deviation-correcting rod of the second deviation-correcting rod group (23) are respectively fixedly connected to the surface of one side of the slideway (25) of the disc (24), and the electric telescopic rod of the other deviation-correcting rod of the first deviation-correcting rod group (22) and the other deviation-correcting rod of the second deviation-correcting rod group (23) is fixedly connected to the surface of the disc (24).

7. The tensile performance testing device for a rubber blanket according to claim 6, characterized in that: A protrusion group (86) is installed inside the clamping plate (85), and a protrusion plate is fixedly connected to a side of the protrusion group (86) close to the positioning rod (84). The middle part of the protrusion plate is connected to a screw rod with two ends having opposite thread directions via a threaded connection. The bottom of the screw rod is fixedly connected to a rotating motor via a coupling. The rotating motor is installed inside the connecting seat (81).

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