Tensile property detection device for rubber blanket

Abstract

The invention discloses a tensile performance detection device for rubber blankets, and relates to the technical field of rubber blanket performance detection.The tensile performance detection device comprises a rack and a remote control end, a first supporting plate is welded to the upper portion of the rack, a rotating frame body is installed in the middle of the first supporting plate, and a plurality of connecting rods are arranged on the end face of one side of the rotating frame body; a mounting sleeve is arranged on one side of the rotating frame body, the other ends of the connecting rods are fixedly connected to the mounting sleeve, a second driving part is fixedly connected to the side, away from the connecting rods, of the mounting sleeve through a rod body, a motor is mounted in one side of the mounting sleeve, and a driving gear is arranged on one side of the motor; according to the rubber blanket tensile property detection device, multi-element detection on the tensile property of the rubber blanket is achieved, and the precision of the tensile property of the rubber blanket is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber blanket performance detection, in particular to a tensile performance detection device for a rubber blanket. Background Art

[0002] Rubber blanket is a kind of elastic material specially used in the printing industry. It is usually used as an intermediate medium in the offset printing process, responsible for transferring the image from the printing plate to paper or other printing materials. Rubber blanket has excellent elasticity and wear resistance, and can maintain good performance under high pressure and high speed conditions to ensure the quality of printed products.

[0003] Tensile strength is a very critical technical indicator for rubber blankets, which directly affects the service life of the rubber blanket, printing quality and production stability. Therefore, it is very necessary to test the tensile strength of the rubber blanket, which helps to screen out products suitable for specific printing needs and ensure a smooth printing process.

[0004] Current rubber blanket tensile testing devices mostly use a single tensile testing mode, which has certain limitations and leads to large errors in the final test results. Therefore, it is necessary to design a rubber blanket tensile performance testing device. Summary of the invention

[0005] The object of the present invention is to provide a tensile performance testing device for a rubber blanket to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a tensile performance testing device for a rubber blanket, comprising a frame and a remote control end, a first support plate is welded on the top of 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 end surface of the rotating frame body, a mounting 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 mounting sleeve, and a driving part 2 is fixedly connected to the side of the mounting sleeve away from the connecting rod through the rod body; A motor is installed inside one side of the mounting sleeve, a driving gear is provided on one side of the motor, a first mounting bracket is installed on the inner wall of the rotating bracket, a mounting groove is provided on one side of the first mounting bracket, a first rack is slidably connected in the mounting groove of the first mounting bracket, a second mounting bracket is provided on one side of the first mounting bracket, a mounting groove is also provided on one side of the second mounting bracket, a second rack is slidably connected in the mounting groove of the second mounting bracket, and both the first rack and the second rack are meshed and connected with the driving gear; An upper detection roller is disposed on one side of the first rack, and a lower detection roller is disposed on one side of the second rack; A first deviation-correcting rod group and a second deviation-correcting rod group are arranged inside the rotating frame body.

[0007] According to the above technical solution, a positioning ring 1 is fixedly connected to the upper side of the first rack away from the sawtooth end through a rod, and the interior of the positioning ring 1 is fixedly connected to one end of the upper detection roller; a positioning ring 2 is fixedly connected to the lower side of the second rack away from the sawtooth end, and the interior of the positioning ring 2 is fixedly connected to one end of the lower detection roller; a plurality of pressure sensors 1 and a plurality of pressure sensors 2 are respectively installed inside the upper detection roller and the lower detection roller.

[0008] 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 to the other end of the rod, a connecting plate is provided in the middle part of one side of the second mounting frame, a connecting rod is connected to the middle bearing of the connecting plate, and the middle part of the driving gear is fixedly connected to one end of the connecting rod.

[0009] According to the above technical solution, the first correcting rod group includes two correcting rods driven to extend and retract by an electric telescopic rod, and a pressure sensor three is installed on the correcting rod. The second correcting rod group has the same structure as the first correcting rod group, and an electric telescopic rod of a correcting rod in the first correcting rod group is arranged on the rod of the positioning ring one, and an electric telescopic rod of a correcting rod in the second correcting rod group is arranged on the rod of the positioning ring two.

[0010] 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 of the frame, an installation box is fixedly connected to the outer side of the first support plate, the second drive unit is installed in the installation box, a horizontal plate is arranged above the first support plate, and a camera is installed on the bottom surface of the horizontal plate.

[0011] According to the above technical solution, the middle bearing of the second support plate is connected with a disc, and two slideways are opened on the surface of the disc, and the other ends of the upper detection roller and the lower detection roller are respectively slidably connected in a corresponding slideway, and the other correction rod of the first correction rod group and the second correction rod group are respectively fixedly connected to the surface of one side of the disc where the slideway is opened, and the electric telescopic rod of the other correction rod of the first correction rod group and the second correction rod group is fixedly connected to the surface of the disc.

[0012] According to the above technical solution, two slide grooves are opened on the surface of the detection platform, the internal bearing of the slide groove is connected to a screw rod 1, one end of the screw rod 1 is connected to a driving part 1 through a coupling, and a slider is rotatably connected to the rod body of the screw rod 1 through a thread, and 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.

[0013] According to the above technical solution, an electric slide rail is fixedly connected to the top of the first support, two sliding seats are slidably connected to the top of the electric slide rail, and two clamping assemblies are fixedly connected to the upper surface of the sliding seat. A second support is arranged on the upper surface of the detection platform in parallel with the first support, and 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, and an electric slide rail is also fixedly connected to the top of the second support, and two clamping assemblies are also arranged on the electric slide rail.

[0014] 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 rotating motor is installed inside the connecting seat, a clamp seat is installed above the connecting seat, the output end of the rotating motor is connected to a rod through a coupling, two ends of the rod are connected to two clamps through threaded sliding, a positioning rod is passed through the plate body of the clamp, and the positioning rod is fixedly connected to the inner side of the clamp seat.

[0015] According to the above technical solution, a protrusion group is installed inside the splint, and a protrusion plate is fixedly connected to the side of the protrusion group close to the positioning rod. The middle part of the protrusion plate is connected to a screw rod with two opposite thread directions at both ends through threaded rotation, and the bottom of the screw rod is fixedly connected to a rotating motor two through a coupling, and the rotating motor two is installed inside the connecting seat.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a rotating frame, a driving gear, a rack, and a detection roller, realizes a dual-stage detection mode combining horizontal stretching and compound stretching, overcomes the limitations of the traditional single tensile test, can comprehensively evaluate the tensile performance of the rubber blanket under different force directions, and significantly improves the comprehensiveness and accuracy of the detection results; by providing the synergistic effect of the correction rod group and the pressure sensor, the position offset of the rubber blanket is adjusted in real time, and multi-dimensional feedback data is provided by the pressure sensor and the camera, which effectively reduces the test error caused by offset or uneven force, and ensures that the detection process is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure of region A; Figure 4It is a schematic diagram of the overall structure of the frame of the present invention from a rear side perspective; Figure 5 The present invention Figure 4 Schematic diagram of the enlarged structure of region B; Figure 6 It is a schematic structural diagram of the detection roller and its driving part of the present invention; Figure 7 It is a structural schematic diagram of the support of the present invention; Figure 8 It is a structural schematic diagram of the installation of the clamp of the present invention; Fig. 9 The present invention Figure 8 Schematic diagram of the enlarged structure of the C region; Fig.10 It is a schematic diagram of the structure of the rotating frame of the present invention after rotation; Fig.11 It is a schematic diagram of the top view structure of the detection platform of the present invention; Fig.12 It is a schematic diagram of dividing the rubber blanket into several units according to the present invention; In the figure: 1. frame; 2. detection platform; 3. slide; 4. screw rod 1; 5. slider; 6. first support; 7. electric slide rail; 71. sliding seat; 8. clamping assembly; 81. connecting seat; 82. rotating motor 1; 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 2; 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. slide; 26. mounting box; 27. camera. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] Embodiment 1; See also Figure 1-12 , the present invention provides a technical solution: a tensile performance testing device for rubber cloth, comprising a frame 1 and a remote control terminal, the remote control terminal is independently arranged outside the device, and is used to set the testing parameters and the processing feedback of the testing data; The upper surface of the frame 1 is riveted with a detection platform 2 for performing the main detection operation. Two slide grooves 3 are provided on the surface of the detection platform 2. The internal bearing of the slide groove 3 is connected with a screw rod 4. One end of the screw rod 4 is connected with a driving part 1 through a coupling. The rotation of the screw rod 4 is realized by starting the driving part 1. The rod body of the screw rod 4 is rotatably connected with a slider 5, and a first support 6 is arranged above the detection platform 2. The first support 6 is composed of two vertical support columns and a horizontal beam. The bottom surface of the support column of the first support 6 is fixedly connected with the upper surface of the slider 5, so that when the driving part is started, the rotation of the screw rod 4 realizes the movement of the slider 5 and drives the displacement of the first support 6; like Figure 7 , Figure 8 As shown, an electric slide rail 7 is fixedly connected to the top of the first support 6, and two sliding seats 71 are slidably connected to the top of the electric slide rail 7. Two clamping assemblies 8 are fixedly connected to the upper surface of the sliding seat 71, which are used to clamp and position the corners of the rubber sheet 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 to the top of the second support 9, and two clamping assemblies 8 are also arranged on the electric slide rail 7, so as to clamp the four corners of the rubber sheet; the displacement of the clamping assembly 8 on it is realized by driving the electric slide rail 7, so that the distance between the two clamping assemblies 8 on the same electric slide rail 7 is regulated, so that the distance between the two clamping assemblies 8 is adapted to rubber sheets of different widths; Furthermore, if Figure 8 , Fig. 9 As 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 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 through a coupling, the rod is a structure with threads in opposite directions at both ends, and two clamping plates 85 are connected to the two ends of the rod through threaded sliding connection, and 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, so as to realize the displacement guidance of the clamping plate 85; when the rotating motor 82 is driven, the rod is driven to rotate, so that the clamping plate 85 is displaced in the opposite direction or oppositely, thereby controlling the clamping condition of the clamping plate 85; Furthermore, a plurality of through holes are provided on the clamping surface of the clamping plate 85, and a protrusion group 86 is installed inside the clamping plate 85. The protrusion group 86 is a plate structure, and a plurality of protrusion columns corresponding to the through holes are provided on the side close to the clamping surface of the clamping plate 85. The protrusion columns are made of wear-resistant material and will not weaken the clamping strength due to repeated friction with the rubber cloth. A protrusion plate is fixedly connected to the side of the plate of the protrusion group 86 close to the positioning rod 84. The middle part of the protrusion plate is connected to a screw rod 2 with opposite thread directions at both ends through a threaded rotation. The bottom of the screw rod 2 is fixedly connected to a rotating motor 2 through a coupling. The rotating motor 2 is installed inside the connecting seat 81. When the rotating motor 2 drives After the movement, the second rotation of the screw rod drives the relative displacement of the protrusion group 86, thereby controlling the extension and contraction of the protrusion column in the through hole. The roughness of the clamping surface of the clamping plate 85 can be adjusted by the different heights of the protrusion column extending from the through hole. A displacement sensor is installed on the inner side of the clamping surface of a clamping plate 85 in each clamping assembly 8, close to the fixed end of the protrusion group 86, for feedback of the displacement distance of the rubber cloth in the clamping plate 85. Then, after the clamping plate 85 clamps the rubber cloth, the roughness is adjusted by the displacement of the rubber cloth due to its smooth surface. The extension height of the protrusion group 86 is proportional to the displacement distance of the rubber cloth in the clamping plate 85.

[0020] A first support plate 10 is welded to the top of the frame 1, and a second support plate 11 is welded to the top of the frame 1 on the side opposite to the first support plate 10. A cross plate is fixedly connected to the tops of the first support plate 10 and the second support plate 11, thereby ensuring the overall stability of the device; a camera 27 is fixedly connected to the bottom surface of the cross plate, and the camera 27 is provided with an image processing function, so that the deformation of the rubber cloth on the detection platform 2 below it can be determined, and then the detection status of the rubber cloth can be observed in real time and the process of detecting the tensile performance of the rubber cloth can be monitored.

[0021] Among them, the driving part 1, the electric slide rail 7, the rotating motor 1 82, the rotating motor 2, and the camera 27 are all connected to the remote control terminal signal.

[0022] In this embodiment, according to the size of the rubber sheet, i.e., length, width and thickness, the driving part is started to control the screw rod 4 to rotate, so that the first support 6 is displaced, and at the same time, the distance between the two sliding seats 71 thereon is preset by the electric slide rail 7, and the rubber sheet is placed between the first support 6 and the second support 9 on the detection platform 2, and the four corners of the rubber sheet are respectively placed between the two clamping plates 85 of each clamping assembly 8, and the rotating motor 82 is controlled to clamp the rubber sheet. After the positioning and clamping of the rubber sheet is completed, the electric slide rail 7 on the first support 6 and the second support 9 is controlled to make the two sliding seats 71 thereon synchronously displace in opposite directions, so that the rubber sheet is stretched in the horizontal direction, and this displacement stroke is set to L1, wherein L1 is obtained and set according to the maximum stretching limit of the rubber sheet; When performing the displacement of L1, the displacement sensor feeds back the displacement of the rubber cloth, and increases the friction between the clamping plate 85 and the rubber cloth by increasing the height of the protruding column, ensuring that the rubber cloth will not slip out of the clamping assembly 8 during the horizontal tensile test, thereby ensuring the accuracy of the test result; After horizontal stretching, the two sliding seats 71 on the same electric slide rail 7 move toward each other by a stroke of L1 to complete the detection of the rubber blanket. At this time, the fracture and deformation of the rubber blanket are observed through the camera 27. If there is fracture or deformation, it indicates that the tensile performance of the rubber blanket is unqualified. If there is no fracture or deformation, it indicates that the tensile performance of the rubber blanket is qualified.

[0023] Through the above embodiment, the four corners of the rubber blanket can be accurately clamped and positioned, and the clamping distance can be adjusted to adapt to rubber blankets of different widths. At the same time, the deformation of the rubber blanket is monitored in real time by the camera 27 to ensure the accuracy of the test process, thereby significantly improving the efficiency and accuracy of the horizontal tensile test of the rubber blanket.

[0024] Embodiment 2: like Figure 1 , Fig.10 As shown, the first support plate 10 is a structure with a circular hollow in the middle, and a rotating frame 12 is rotatably connected to the hollow portion of the first support plate 10 via a bearing. Figure 6 As shown, the rotating frame body 12 is a circular ring structure, and four connecting rods 121 are arranged on one end surface of the rotating frame body 12. A mounting sleeve 13 is arranged on the side of the rotating frame body 12 close to the connecting rod 121. The other end of the connecting rod 121 is fixedly connected to the outer surface of the mounting sleeve 13, and the side of the mounting sleeve 13 away from the connecting rod 121 is fixedly connected to the driving part 122 through the rod body. Figure 2 As shown, the outer side of the first support plate 10 is fixedly connected to a mounting box 26 for arranging the wires in the rotating frame 12. The second driving unit 122 is installed in the mounting box 26, so that when the second driving unit 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 according to Figure 6 Clockwise direction as shown; A motor 14 is installed inside the mounting sleeve 13 on a side 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. The driving gear 15 is driven by the motor 14 to realize the rotation of the driving gear 15. A first mounting frame 16 is fixedly connected to the inner wall of the rotating frame body 12. A mounting groove is provided on the side of the first mounting frame 16 close to the center of the rotating frame body 12. A first rack 17 is slidably connected in the mounting groove of the first mounting frame 16. A second mounting frame 16 is provided on one side of the first mounting frame 16. 8. A similar mounting groove is provided on a side of the second mounting frame 18 close to the first mounting frame 16. A second rack 19 is slidably connected in the mounting groove of the second mounting frame 18. The first rack 17 and the second rack 19 are meshedly connected. A connecting plate is provided in the middle of the side of the second mounting frame 18 away from the driving gear 15. A connecting rod is connected to the middle bearing of the connecting plate. The connecting rod is fixedly connected to the middle of the driving gear 15, thereby realizing the positioning of the driving gear 15 and driving the first rack 17 and the second rack 19 to move in opposite directions through the rotation of the driving gear 15. Furthermore, a positioning ring 1 is fixedly connected to the upper side of the first rack 17 away from the sawtooth end through a rod, and one end of the upper detection roller 20 is fixedly connected inside the positioning ring 1. A positioning ring 2 is fixedly connected to the lower side of the second rack 19 away from the sawtooth end through a rod, and one end of the lower detection roller 21 is fixedly connected inside the connecting ring 2. 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; a plurality of pressure sensors 1 and 2 are respectively installed inside the upper detection roller 20 and the lower detection roller 21. There is a pressure sensor 2, and a plurality of pressure sensors 1 and a plurality of pressure sensors 2 are closely arranged and evenly distributed on the surface of the upper detection roller 20 and the lower detection roller 21, so that the pressure conditions of the entire surface of the upper detection roller 20 and the lower detection roller 21 can be detected. When the rotating frame 12 rotates, the upper detection roller 20 and the lower detection roller 21 are in contact with the upper surface and the lower surface of the rubber blanket respectively, and then the force condition of the rubber blanket can be fed back. By comparing the force size with the maximum tensile limit value of the rubber blanket material property, it can be determined whether the rubber blanket is loose. The interior of the rotating frame 12 is provided with a first deviation correction rod group 22 and a second deviation correction rod group 23. Figure 5 , Fig.11 , wherein the first deflection correcting rod group 22 includes two deflection correcting rods driven to extend and retract by an electric telescopic rod, the deflection correcting rod is a right-angle rod structure, and one side of the rod is parallel to the detection roller, and the other side of the rod is perpendicular to the detection roller. A pressure sensor 3 is arranged on the rod perpendicular to the detection roller, and the second deflection correcting rod group 23 also includes two deflection correcting rods driven to extend and retract by an electric telescopic rod; A correction rod of the first correction rod group 22 is provided on the rod of the first positioning ring, and the electric telescopic rod on the correction rod is fixedly connected to the rod of the upper detection roller 20; similarly, a correction rod of the second correction rod group 23 is provided on the rod of the second positioning ring, and the electric telescopic rod on the correction rod is fixedly connected to the rod of the lower detection roller 21; thereby, the extension of the correction rod close to the rotating frame 12 is controlled by driving the electric telescopic rod; Furthermore, if Figure 2-5 As 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, and two slideways 25 are provided on the disc 24, and the other ends of the upper detection roller 20 and the lower detection roller 21 are respectively slidably connected in a corresponding slideway 25, so that when the driving gear 15 drives the first rack 17 and the second rack 19 to move, the upper detection roller 20 and the lower detection roller 21 will be driven to move synchronously; Another correcting rod of the first correcting rod group 22 and another correcting rod of the second correcting rod group 23 are fixedly connected to the surface of one side of the disc 24 on which the slideway 25 is provided, and the corresponding electric telescopic rods are fixedly connected to the surface of the disc 24, so as to correct the deviation of the side of the rubber blanket that is offset during the inspection of the rubber blanket, thereby preventing the accuracy of the inspection result from being reduced due to the offset of the rubber blanket during the inspection process.

[0025] Among them, the driving part 2 122, the motor 14, a plurality of electric telescopic rods, a plurality of pressure sensors 1, a plurality of pressure sensors 2 and a pressure sensor 3 are all connected to the remote control terminal signal.

[0026] In this embodiment, the maximum stretch limit value T1 of the rubber blanket is set according to the material characteristics of the rubber blanket, and the rubber 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 12 is located is set to H1. At this time, the second driving unit 122 is started to rotate the rotating frame 12, so that the upper detection roller 20 and the lower detection roller 21 are constantly close to the surface of the rubber blanket. When the pressure sensor 1 and the pressure sensor 2 both have data feedback, the second driving unit 122 stops driving; At this time, the camera 27, several pressure sensors 1 and several pressure sensors 2 are used to observe whether the position of the rubber cloth on the detection roller is symmetrical about the center of the detection roller. If it is not symmetrical, the electric telescopic rod is started to drive the correction rod to perform preliminary correction on the corresponding rubber cloth position. Specifically, when the rubber cloth contacts the surface of the detection roller, the pressure conditions of the entire surface of the upper detection roller 20 and the lower detection roller 21 are fed back through the several pressure sensors 1 and several pressure sensors. The preliminary contact pressure fed back by the several pressure sensors 1 and several pressure sensors at this time is set to T2. When the pressure sensors under pressure are symmetrically distributed on the force-bearing surface of the detection roller with the center of the roller, it indicates that the rubber cloth has been calibrated. If the pressure sensors on one side of the detection roller surface are symmetrically distributed with respect to the center of the roller, it indicates that the rubber cloth has been calibrated. If the number of the pressure sensors on one side is greater than that on the other side, the camera 27 is used to determine the offset. If it is determined that the pressure sensor feedback is met, the electric telescopic rod on the side with more pressure sensors on the detection roller drives the correction rod to extend and insert between the rubber cloth and the detection roller. The correction rod is perpendicular to the side of the detection roller and contacts the side of the rubber cloth, thereby pushing the rubber cloth out and displacing it a certain distance on the surface of the detection roller until the pressure sensors on both sides are symmetrically compressed, thereby completing the correction operation. If it is determined that the pressure sensor feedback is not met, the pressure sensor needs to be detected, thereby ensuring that the rubber cloth is in the center position on the detection roller and realizing the calibration of the pressure sensor. After the deviation correction is completed, the second driving unit 122 is started to perform a composite stretching test on the rubber blanket, that is, by turning the rotating frame 12, the upper detection roller 20 and the lower detection roller 21 are driven to continuously approach the surface of the rubber blanket until they are pulled against the surface of the rubber blanket to achieve stretching of the rubber blanket. At this time, the force condition of the rubber blanket is fed back by the pressure sensor 1 and the pressure sensor 2, until the data fed back by the pressure sensor 1 and the pressure sensor 2 reaches T1, the second driving unit 122 stops and rotates, so that the rubber blanket is no longer in a stretched state. At this time, the pressure data continuously fed back by the pressure sensors 1 and 2 are set to T3 and T4, and compared with the pressure T2 when initially in contact with the rubber blanket, the relaxation of the rubber blanket is judged, and the offset of the rubber blanket is observed through the camera 27; Specifically, if T3 and T4 are both equal to T2, and the pressure sensors of the plurality of pressure sensors 1 and the plurality of pressure sensors 2 are symmetrically distributed around the center of the detection roller, there is no slack or offset, indicating that the composite tensile performance of the rubber blanket is qualified; If any value of T3 or T4 is less than T2, but the pressure sensors of the plurality of pressure sensors 1 and the plurality of pressure sensors 2 are still symmetrically distributed around the center of the detection roller, only relaxation occurs. Since the applied tension is within the maximum tensile limit of the rubber blanket, the composite tensile performance of the rubber blanket is unqualified. If T3 and T4 are both equal to T2, but the pressure sensors of the plurality of pressure sensors 1 and the plurality of pressure sensors 2 are not symmetrically distributed around the center of the detection roller, only an offset occurs. It is determined through the displacement sensor that the offset is caused by the displacement of the rubber cloth in the clamping plate 85. At this time, the same steps as the preliminary correction are taken, and the corresponding correction rod is used to correct the offset according to the corresponding rubber cloth part. After the correction, the detection roller is controlled to rotate a certain distance and then the rubber cloth is stretched. If there is no offset at this time, it means that the surface of the rubber cloth is smooth and the elasticity is uniform. If the displacement sensor determines that the rubber blanket has not shifted in the clamping plate 85, and after taking the same steps of preliminary deviation correction, it still shifts at this time, it means that the pressure distribution is uneven and there is a quality problem with the rubber blanket; If any value of T3 or T4 is less than T2, and the pressure sensors of the plurality of pressure sensors 1 and the plurality of pressure sensors 2 are not symmetrically distributed around the center of the detection roller, indicating that the rubber blanket is loose and offset, the rubber blanket is directly marked as unqualified.

[0027] The above embodiment can not only evaluate the maximum stretching limit of the rubber blanket, but also determine whether the rubber blanket is loose or offset through the information fed back by the pressure sensor, so as to more comprehensively evaluate its tensile performance. At the same time, the use of the correction rod can effectively avoid the error caused by the offset of the rubber blanket during the detection process, thereby improving the reliability of the detection result.

[0028] Embodiment three; Based on the second embodiment, the rubber blanket is initially corrected when the pressure sensor 1 and the pressure sensor 2 first generate data feedback. At this time, the pressure sensor 3 contacts the rubber blanket to obtain a first pressure value p1. Then, the rotating frame 12 stops rotating and returns to the initial position. Based on the first embodiment, the rubber blanket is horizontally stretched, and the width change of the rubber blanket is observed by the camera 27. If the width changes, it means that the horizontal tensile performance of the rubber blanket is unqualified. At this time, the rubber blanket is marked and taken out. Otherwise, it means that the horizontal tensile performance of the rubber blanket is qualified. At this time, the rubber blanket with qualified horizontal tensile performance is further tested. Specifically, the driving unit 2 122 is started, so that the pressure sensor 1 and the pressure sensor 2 obtain data feedback again. At this time, in order to prevent the rubber blanket from deflecting during horizontal stretching, correction is performed again, and a second pressure value p2 is obtained through the pressure sensor 3. When the correction is completed, when any p2 is equal to p1, it means that the horizontal tensile performance of the rubber blanket is qualified and its edge quality is also good. When any pressure sensor 3 detects that p2<p1, it means that although the width of the rubber blanket does not change after horizontal stretching, the edge is bent and uneven due to pulling. At this time, the rubber blanket is marked; For any of the above situations, the composite stretching test is continued, so that when the pressure sensor 1 and the pressure sensor 2 feedback that T1 has been reached, the rotating frame 12 is controlled to continue to rotate, and it is observed whether the data fed back by the pressure sensor 1 and the pressure sensor 2 increase, so as to apply additional tension to observe whether the rubber cloth exceeds the maximum stretching limit or uneven stretching occurs; If it stops growing, it means that the rubber has reached the maximum stretching limit. At this time, the detection roller moves toward the driving gear 15. During this process, the data fed back by the pressure sensor 1 and the pressure sensor 2 are continuously read. If the value read is 0, it means that the rubber is loose and the rubber is unqualified. If the data read is unchanged, it means that the rubber is not loose and the rubber is qualified. If it continues to grow, it means that the maximum tensile limit of the blanket exceeds the preset range. At this time, the driving gear 15 is rotated, and the detection roller continues to move a distance away from the driving gear 15. In order to keep the detection roller at the same height, the rotating frame 12 rotates accordingly, and the surface image of the blanket is captured by the camera 27, such as Fig.12 As shown, the surface of the blanket is divided into N units, and the areas detected by pressure sensor 1 and pressure sensor 2 that are beyond the preset range are marked as over-limit units, i.e., the shaded units in the figure, and the number of over-limit units detected is set to n, and the area ratio R1=n / N is calculated, and the uniformity standard value of the blanket is set to R2 (0<R2<1); When R1≤R2, the uniformity of the rubber blanket meets the standard and the rubber blanket is qualified; when R1>R2, the uniformity of the rubber blanket is poor and the rubber blanket is unqualified.

[0029] Furthermore, among the rubber blankets judged as qualified in the above situations, if there is a rubber blanket with p2<p1, the rubber blanket is stretched to a certain extent in the longitudinal direction through the composite tensile performance test, and the correction rod is driven again to make the pressure sensor 3 read the side condition p3 of the rubber blanket. If p3=p1, it means that the bend at the edge of the rubber blanket has become uniform through longitudinal stretching, the plasticity of the rubber blanket is good, and the tensile performance is qualified; if p3<p1, it means that the rubber blanket is unqualified.

[0030] The above embodiment combines the dual-stage detection of horizontal stretching and compound stretching to analyze the quality characteristics of the blanket in multiple aspects, such as plasticity and uniformity, and provides a more detailed blanket quality evaluation standard.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in 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); After the rubber blanket is initially corrected when the pressure sensor 1 and the pressure sensor 2 first generate data feedback, the pressure sensor 3 contacts the rubber blanket to obtain a first pressure value p1, and the rubber blanket with qualified horizontal tensile performance is further tested. The driving unit 2 (122) is started, so that the pressure sensor 1 and the pressure sensor 2 obtain data feedback again. At this time, in order to prevent the rubber blanket from deviating during horizontal stretching, correction is performed again, and a second pressure value p2 is obtained through the pressure sensor 3. When the correction is completed, if any p2 is equal to p1, it means that the horizontal tensile performance of the rubber blanket is qualified and its edge quality is also good. If any pressure sensor 3 detects that p2 is less than p1, it means that although the width of the rubber blanket does not change after horizontal stretching, the edge is bent and uneven due to pulling. At this time, the rubber blanket is marked; Continue to carry out composite stretching test, stretch the rubber blanket in the longitudinal direction to a certain extent, and then drive the correction rod to make the pressure sensor 3 read the side condition p3 of the rubber blanket. If p3=p1, it means that the bend at the edge of the rubber blanket has become uniform through longitudinal stretching, the plasticity of the rubber blanket is good, and the tensile performance is qualified; if p3<p1, it means that the rubber blanket is unqualified.

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 detection platform (2) is riveted onto the upper surface of the frame (1); a second support plate (11) is welded to the other side of the upper side of the frame (1); an installation box (26) is fixedly connected to the outer side of the first support plate (10); the second drive unit (122) is installed in the installation box (26); a horizontal plate is arranged 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: Two slide grooves (3) are provided on the surface of the detection platform (2); the internal bearings of the slide grooves (3) are 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).

8. The tensile performance testing device for a rubber blanket according to claim 7, characterized in that: 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), and 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).

9. The tensile performance testing device for a rubber blanket according to claim 8, characterized in that: 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).

10. The tensile performance testing device for a rubber blanket according to claim 9, 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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