Detection method for detecting impact resistance of material

Abstract

The invention relates to the technical field of material anti-impact performance detection, and discloses a material anti-impact performance detection method, which comprises the following steps: bonding a thin film material into a strip shape, respectively clamping the material through four roller groups, ensuring the stability of the material in the test process, and detecting the anti-impact performance of the material. Each roller group consists of rollers which are arranged up and down, and an unimpacted area can be adjusted to an impacted area by controlling the rotation of the roller groups, so that continuous multiple impact tests are realized, each area of a thin film material can be uniformly impacted in the test process, and the problem of low efficiency of the traditional test of materials one by one is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of detecting the impact resistance of materials, and specifically provides a detection method for detecting the impact resistance of materials. Background Art

[0002] In the detection of the impact resistance of thin film materials, traditional techniques usually adopt the method of testing each thin film material one by one. This method fixes each thin film material separately and conducts impact tests. Usually, independent operations and adjustments are required for each piece of thin film; this method not only has low efficiency, but also requires re-adjustment of the material between each test, resulting in a long test time and frequent manual operations, and it is difficult to ensure the stability and consistency of the test results.

[0003] Currently, most common technical methods rely on physical clamping devices, such as pneumatic clamps, mechanical clamps, etc. By clamping a single thin film material and keeping it in a tensioned state, and then conducting impact tests; however, in actual applications, it is difficult to achieve uniform tension for each thin film material, and there is a lack of effective automation means for continuous detection of multiple thin film materials, resulting in a cumbersome and inaccurate entire detection process. Especially during multiple impact tests, the clamping and tension adjustment of the thin film materials cannot be finely controlled, thus affecting the final test results.

[0004] To solve this problem, this technical solution bonds the thin film materials into long strips, and continuously tensions the materials by clamping and fixing them with four rollers, and conducts continuous impact tests; after each impact, by controlling the rotation of the rollers, the unimpacted area is brought between the roller groups, and then the next impact test is carried out on the thin film material; the advantage of this method is that by bonding multiple thin film materials into a long strip material, the continuity of multiple impact tests is achieved; at the same time, the roller clamping system can stably tension and fix the thin film materials, avoiding errors caused by manual adjustment. Summary of the Invention

[0005] The present invention provides a detection method for detecting the impact resistance of materials, which helps to solve the problems mentioned in the above background art.

[0006] The present invention provides the following technical solution: A detection method for detecting the impact resistance of materials, comprising:

[0007] Performing bonding treatment on the thin film materials that need to be detected for impact resistance to form continuous chain-like test materials, including:

[0008] Using two suction structures in the pickup suction cup to respectively suck the two ends of each thin film material;

[0009] Transporting the thin film material above the bonding position;

[0010] Control one of the two suction structures to release the thin film material first. When the thin film material detaches from the suction structure and falls, control the other suction structure to release the thin film material, so that during the falling process of the thin film material, it moves towards the target position by itself and finally lands at the target position;

[0011] Bond the thin film material at the bonding position to form a continuous chain-like test material;

[0012] Record each bonding area formed by the bonding process on the test material as a seam area;

[0013] Stretch and fix each pair of adjacent seam areas respectively to flatten the test material between the seam areas;

[0014] Detect the impact resistance of the flattened test material.

[0015] Optionally, using the two suction structures in the pick-up suction cup to respectively suck the two ends of each thin film material, including:

[0016] The two suction structures of the pick-up suction cup include a first suction cup and a second suction cup;

[0017] Among them, the first suction cup is connected to the first air pump through an air pipeline, and the second suction cup is connected to the second air pump through an air pipeline;

[0018] The first air pump and the second air pump are independently controlled respectively;

[0019] When the first suction cup and the second suction cup suck the thin film material and carry it above the bonding position, select to control the first air pump or the second air pump to stop pumping air as needed, so that the thin film material detaches from the first suction cup or the second suction cup;

[0020] When the thin film material detaches from one suction cup and falls, control the air pump connected to the other suction cup to stop pumping air, so that the thin film material detaches from the other suction cup.

[0021] Optionally, using the two suction structures in the pick-up suction cup to respectively suck the two ends of each thin film material, further includes:

[0022] The two suction structures of the pick-up suction cup include a first suction cup and a second suction cup;

[0023] The first suction cup is connected to one end of a soft airbag, and the other end of the soft airbag is connected to an air chamber;

[0024] The air chamber is connected to an air pump through an air pipeline;

[0025] A gravity block is connected below the soft airbag;

[0026] The air chamber includes an exhaust hole and a one-way valve that is communicated with the air chamber by a soft airbag;

[0027] The second suction cup is connected to the air extraction pump through an air path;

[0028] The air path includes two branches, one of which is connected to the air chamber and the other is connected to the second suction cup.

[0029] Optionally, the impact resistance detection of the flattened test material includes:

[0030] Sending the test material into the roller fixing module for flattening and fixing;

[0031] Recording the test material located in the roller fixing module as the detection material;

[0032] Using the tension detection module to detect the tension of the detection material and judge whether the tension is normal;

[0033] If the tension is abnormal, use the roller fixing module to adjust the tension of the detection material to make the tension normal after tension adjustment;

[0034] If the tension is normal, the impact resistance detection of the detection material is carried out, specifically including:

[0035] S1. Obtain the center point of the upper surface of the detection material and record it as the impact point;

[0036] S2. Draw a straight line perpendicular to the horizontal plane through the impact point and record this straight line as the impact reference line;

[0037] S3. Obtain the impact height required for the impact resistance detection and record it as the impact height;

[0038] S4. Obtain a point on the impact reference line above the impact point and the distance between this point and the impact point is equal to the impact height, and record it as the impact release point;

[0039] S5. Release the solid ball at the impact release point so that the solid ball impacts on the detection material;

[0040] S6. After the impact is completed, transfer the solid ball from the detection material;

[0041] S7. Record the impact mark on the detection material and analyze the impact resistance of the detection material;

[0042] S8. Control the rotation of the roller fixing module to replace the detection material;

[0043] Repeat steps S1 - S8. After each film material that makes up the test material has been impacted once, the impact detection of the test material is completed.

[0044] Optionally, the thin film material to be tested for impact resistance is adhesively treated to form a continuous chain-like test material, specifically including:

[0045] The thin film material is adhesively treated using an adhesive module;

[0046] The adhesive module includes: an adhesive container, a guiding structure, and a picking suction cup;

[0047] The adhesive container is an open container with only one bottom surface;

[0048] The guiding structure is located on the inner wall of the adhesive container;

[0049] The inner surface of the adhesive container that serves as the bottom surface of the container is obtained and denoted as the inner bottom surface;

[0050] The two long sides and two short sides of the inner bottom surface are obtained, and the length of any one long side is obtained and denoted as the long side length, and the length of any one short side is obtained and denoted as the short side length;

[0051] A heating area is set on the inner bottom surface of the adhesive container, and the width value of this heating area is denoted as the standard value;

[0052] The sum of the long side length and the standard value is calculated, and half of the obtained value is denoted as the long side standard;

[0053] The length equal to the short side length is taken and denoted as the short side standard;

[0054] The thin film material to be tested for impact resistance is cut into a rectangle, and the length of the cut rectangular thin film material is equal to the long side standard and the width is equal to the short side standard. The cut thin film material is denoted as the standard material;

[0055] The midpoints of the two long sides of the inner bottom surface are obtained and connected, and the obtained connection line is denoted as the adhesive reference line;

[0056] The adhesive reference line divides the inner bottom surface into two rectangular areas. One rectangular area is denoted as the first area, and the other rectangular area is denoted as the second area;

[0057] The short side of the two short sides of the inner bottom surface that is located in the first area is denoted as the first short side, and the short side that is located in the second area is denoted as the second short side;

[0058] A plane passing through the adhesive reference line and perpendicular to the horizontal plane is made and denoted as the reference plane;

[0059] For each standard material, the midpoints of its two long sides are obtained and connected, and this connection line is denoted as the connection median line of the standard material;

[0060] Set the maximum allowable spacing;

[0061] If it is the first standard material currently, control the pickup suction cup to reverse so that the second suction cup in the pickup suction cup is in front of the first suction cup. Use the pickup suction cup to pick up the first standard material, carry it above the bonding container, adjust the position of the standard material so that the connection center line of the standard material is parallel to the bonding reference line, and the distance between the projection line segment of the connection center line of the standard material vertically downward on the inner bottom surface and the first short side is ≤ the maximum allowable distance. Keep the position of the standard material unchanged and stop pumping air;

[0062] S9. If it is a standard material after the first one currently, control the pickup suction cup to return to the initial state so that the first suction cup in the pickup suction cup is in front of the second suction cup. Use the pickup suction cup to pick up the standard material, carry it above the bonding container, adjust the position of the standard material so that the connection center line of the standard material is parallel to the bonding reference line, and the distance between the projection line segment of the connection center line of the standard material vertically downward on the inner bottom surface and the second short side is ≤ the maximum allowable distance. Keep the position of the standard material unchanged and stop pumping air;

[0063] S10. After two standard materials are placed in the bonding container, obtain the states of the two standard materials in the bonding container;

[0064] S11. If the two standard materials in the bonding container are completely inside the bonding container, perform a coincidence judgment;

[0065] S12. If there is a standard material in the bonding container that is not completely inside the bonding container, prompt for manual adjustment.

[0066] Optionally, the performing the coincidence judgment includes:

[0067] S13. Obtain the overlapping part of the two standard materials in the container and record this part as the overlapping area;

[0068] S14. If the part covered by the overlapping area on the inner bottom surface does not include the bonding reference line, prompt for manual adjustment;

[0069] S15. If the part covered by the overlapping area on the inner bottom surface includes the bonding reference line, perform a centering judgment;

[0070] The centering judgment includes:

[0071] S16. Obtain the midpoint of the bonding reference line and draw a perpendicular line perpendicular to the bonding reference line and in the same horizontal plane through this midpoint, which is recorded as the centering judgment line;

[0072] S17. Obtain the two intersection points of the centering judgment line and the part covered by the overlapping area on the inner bottom surface, and respectively obtain the distance between each intersection point and the midpoint of the bonding reference line, which are respectively recorded as the first centering distance and the second centering distance;

[0073] S18. Set a centering threshold for determining whether the overlapping area is centered;

[0074] S19. Calculate the difference between the first centering distance and the second centering distance and compare it with the centering threshold;

[0075] S20. If the difference between the first centering distance and the second centering distance > the centering threshold, prompt for manual adjustment;

[0076] S21. If the difference between the first centering distance and the second centering distance ≤ the centering threshold, directly perform bonding;

[0077] S22. The so-called directly performing bonding specifically means: controlling the heating area in the bonding container to heat, so that the overlapping area of the standard material is melted and bonded;

[0078] S23. Take half of the standard value as the bonding distance;

[0079] S24. After completing the bonding, pull the standard material in the direction from the center point of the second area to the center point of the first area;

[0080] S25. When the distance between the short side of the standard material located in the second area and the bonding reference line is equal to the bonding distance, stop pulling the standard material;

[0081] Repeat S9 - S25. When all the standard materials are bonded, complete the bonding process for the thin film material to form a test material.

[0082] Optionally, the step of feeding the test material into the roller fixing module for flattening and fixing includes:

[0083] The roller fixing module includes four cylindrical rollers, where every two rollers form a roller group. The two rollers in each roller group are arranged vertically, the two rollers are parallel to each other and in contact with each other, and at the same time, the axes of the two rollers in each roller group are located in the same plane perpendicular to the horizontal plane;

[0084] Denote the two roller groups as the first roller group and the second roller group respectively;

[0085] Respectively obtain the rollers that are below the other roller among the two rollers in the first roller group and the second roller group, and denote them as the bottom rollers of each roller group;

[0086] Respectively obtain the axes of the bottom rollers of the first roller group and the second roller group, and denote them as the first bottom axis and the second bottom axis respectively;

[0087] When controlling the movement of the first roller group and the second roller group, the first bottom axis and the second bottom axis remain on the same horizontal plane;

[0088] Calculate the difference between the long side standard and twice the standard value, and record the obtained result as the standard distance;

[0089] Control the distance between the first roller group and the second roller group to be less than or equal to the standard distance;

[0090] Among the four sides of the test material, take the two shorter sides, and arbitrarily select one of the two shorter sides as the starting side, and the other side as the ending side;

[0091] Record the seam area closest to the starting side as the first seam area;

[0092] Record the area between the starting side and the first seam area on the test material as the first detection area;

[0093] Pass the starting side through between the two rollers in the second roller group, and control the second roller group to rotate so that the test material moves in the direction closer to the first roller group;

[0094] When the starting side of the test material touches the first roller group, pass the starting side of the test material through between the two rollers in the first roller group, and control the first roller group and the second roller group to rotate simultaneously;

[0095] When the starting side of the test material passes through the first roller group and the first seam area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the first detection area, control the first roller group and the second roller group to stop rotating, and complete feeding the test material into the roller fixing module.

[0096] Optionally, the use of the tension detection module to detect the tension of the detection material includes:

[0097] The tension detection module includes two pressure sensors, and the two pressure sensors are on a horizontal line parallel to the rollers of the second roller group;

[0098] Transfer the tension detection module under the detection material, and make the connection line of the two pressure sensors in the tension detection module pass through the impact point of the detection material;

[0099] Control the two pressure sensors in the tension detection module to be in contact with two sides of the detection material respectively;

[0100] Obtain the pressure values detected by each pressure sensor after the detection material contacts the pressure sensor, and record them as the first pressure value and the second pressure value respectively;

[0101] Set the maximum difference threshold for judging whether the pressure values are approximately equal, and record it as the pressure threshold;

[0102] Calculate the difference between the first pressure and the second pressure value, and compare the absolute value of this difference with the pressure threshold;

[0103] If the absolute value of the difference > the pressure threshold, it is determined that the tension is normal;

[0104] If the absolute value of the difference ≤ the pressure threshold, it is determined that the tension is abnormal.

[0105] Optionally, if the tension is abnormal, the detection material is tensioned and adjusted by using the roller fixing module to make the tension normal after the tension adjustment, including:

[0106] Respectively obtain the midpoints of the axes of the two rollers in the first roller group, and draw a straight line passing through these two midpoints, denoted as the rotation baseline;

[0107] Compare the first pressure value and the second pressure value;

[0108] If the first pressure value > the second pressure value, obtain the pressure sensor corresponding to the first pressure value, and obtain one edge of the detection material in contact with this sensor, denoted as the tight edge;

[0109] If the second pressure value > the first pressure value, obtain the pressure sensor corresponding to the second pressure value, and obtain one edge of the detection material in contact with this sensor, denoted as the tight edge;

[0110] Obtain the end that is closer to the tight edge among the two ends of the rollers in the first roller group, denoted as the tight end;

[0111] Control the first roller group to rotate around the rotation baseline so that the tight end moves in the direction approaching the second roller group;

[0112] During the rotation of the first roller group, monitor the pressure values detected by each pressure sensor in the tension detection module;

[0113] When the absolute value of the difference between the pressure values detected by the pressure sensors in the tension detection module ≤ the pressure threshold, control the first roller group to stop rotating and complete the tension adjustment.

[0114] Optionally, controlling the rotation of the roller fixing module to replace the detection material includes:

[0115] Denote the direction in which the second roller group points to the first roller group as the first direction, and denote the opposite direction of the first direction as the second direction;

[0116] Obtain the seam area that is currently closest to the second roller group, denoted as the first adjacent seam area;

[0117] Obtain the seam area adjacent to the first adjacent seam area in the second direction, and denote it as the second adjacent seam area; if there is no seam area adjacent to the first adjacent seam area in the second direction, then use the end edge of the test material as the second adjacent seam area;

[0118] Denote the part of the test material between the first adjacent seam area and the second adjacent seam area as the next detection area;

[0119] Control the first roller group and the second roller group to rotate simultaneously, so that the test material moves in the first direction;

[0120] When the first adjacent seam area passes through the first roller group, and the second adjacent seam area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the next detection area, control the first roller group and the second roller group to stop rotating, and complete the replacement of the test material.

[0121] The present invention has the following beneficial effects:

[0122] 1. The steps of bonding the film material to form a standard material, combined with the bonding module and precise dimension design, can significantly improve the consistency and accuracy of the film material in the impact resistance test; First, through the precise design of the bonding container and the guiding structure, it can ensure the precise docking and positioning of the film material during the bonding process, which reduces the possibility of unevenness and displacement of the material during subsequent bonding; Secondly, by setting the heating area and controlling the standardization of heating, the temperature and pressure during the bonding process are effectively controlled, thereby ensuring the uniformity and reliability of the bonding; By precisely calculating the long side standard and the short side standard and cutting the film material, the size of each standard material strictly meets the test requirements, thus avoiding the inconsistency caused by material size differences and further improving the comparability and accuracy of the test; In addition, this process enables the film material to conform to the size of the bonding container, and then enables the film material to be better fixed and restricted by the bonding container during subsequent bonding, thereby improving the bonding effect on the film material.

[0123] 2. By precisely positioning and controlling the position of the thin film material in the bonding container, the high-precision docking of the thin film material during the entire bonding process is ensured, thereby improving the accuracy and consistency of the impact resistance performance test. First, by obtaining the midpoint of the long side of the inner bottom surface and drawing the bonding reference line, the bottom surface is divided into two regions, which provides a clear reference framework for the precise placement of subsequent materials, avoids the deviation of the material position during the bonding process, and ensures that the docking position of the material can be precisely aligned with the bonding reference line. Second, the pick-up suction cup is used to transport the standard material above the bonding container, and by adjusting the position of the standard material, its connection center line is made parallel to the bonding reference line. This fine control step can ensure that each thin film material can be strictly positioned according to the design requirements during the bonding process, avoiding problems such as uneven bonding and inconsistent structure caused by material offset or misalignment. In addition, controlling the pick-up suction cup to transport the standard material above the bonding container instead of directly controlling the pick-up suction cup to place the standard material into the bonding container avoids the pick-up suction cup being affected by the temperature generated by heating in the bonding container when directly placing the thin film material into the bonding container, resulting in deformation of the pick-up suction cup due to heat and affecting the suction effect of the suction cup. At the same time, by combining the control of the maximum allowable distance between the standard material and the short side, and the control of the order in which the two suction cups in the pick-up suction cup release the standard material successively, when the standard material needs to fall into the first region, the suction cup in the pick-up suction cup that is closer to the first short side is controlled to release the standard material first, and the suction cup that is closer to the second short side is controlled to release the standard material later, so that the standard material approaches the direction of the first short side during the process of falling into the bonding container. When the standard material needs to fall into the second region, the suction cup in the pick-up suction cup that is closer to the second short side is controlled to release the standard material first, and the suction cup that is closer to the first short side is controlled to release the standard material later, so that the standard material approaches the direction of the second short side during the process of falling into the bonding container. This method can make the standard material fall into the target position in the bonding container as much as possible, thereby ensuring the precise placement of the material.

[0124] 3. By using a visual detection module and precise coincidence and centering judgment technologies, it is ensured that the film materials can be accurately aligned during the bonding process, improving the consistency and accuracy of the test materials. First, the visual detection module is used to monitor the standard materials in the bonding container in real time, which can quickly detect whether the materials are completely inside the container. By judging the coincidence of the materials, it is ensured that the relative positions of the two standard materials in the bonding container meet the requirements, avoiding material misalignment or overlap caused by position deviation and ensuring the uniformity of the bonding area. If the materials do not completely enter the container, the system will automatically issue a prompt to ensure that manual adjustment is made in a timely manner. Further coincidence judgment, especially by checking whether the coincidence area covers the bonding reference line, ensures the accuracy of material docking and avoids bonding errors caused by incomplete coincidence or incorrect positions. By performing centering judgment on the coincidence area, the positioning accuracy of the standard materials is further improved, ensuring the alignment of the materials during the bonding process. Obtaining the distance between the intersection point of the centering judgment line and the coincidence area can effectively measure and correct the centering of the materials. By calculating the difference between the first centering distance and the second centering distance and comparing it with the set centering threshold, efficient monitoring of the material position deviation can be achieved. Once it is found that the error exceeds the tolerance range, the system will prompt for manual adjustment. This process effectively avoids the inconsistency caused by tiny position deviations. Through these precise positioning and control measures, accurate bonding of the materials is ensured, greatly improving the bonding quality and guaranteeing the accuracy and reliability of subsequent impact resistance tests.

[0125] 4. By controlling the heating of the coincidence area by the heating area in the heating container, the bonding parts of the standard materials are melted and firmly bonded, effectively avoiding the problem of uneven bonding caused by insufficient local heating and ensuring the integrity and firmness of the bonding area. During the bonding process, the system uses half of the standard value as the bonding distance and precisely controls the pulling of the standard materials to make the subsequent bonding position of the materials appropriate, avoiding material misalignment and ensuring the accuracy and uniformity of each bonding. In addition, the method of bonding single film materials together can effectively improve the test efficiency of the impact test. In the traditional method of conducting impact tests on single films one by one, each film usually needs to be independently clamped and adjusted, which not only takes a long time but is also easily affected by the operator, resulting in a non-standardized test process. By bonding the film materials into a long strip, it is possible to conduct impact tests on multiple areas under the clamping and adjustment of the rollers, greatly improving the continuity and automation of the test.

[0126] 5. By using four cylindrical rollers to form two sets of roller groups, a uniform and stable material clamping effect can be provided; each set of rollers consists of an upper roller and a lower roller, and they are in contact with each other to ensure that the test material can be evenly clamped between the two rollers, avoiding the material offset or position instability problems that may be caused by a single roller. Such a design enhances the accuracy of material fixation and ensures the stability of the material during subsequent impact tests; secondly, by defining the two sets of rollers as the first roller group and the second roller group respectively, and ensuring that the axis of the bottom roller of each roller group is on the same horizontal plane, the consistency and symmetry of the positions between the roller groups can be achieved, thereby reducing the errors caused by the asymmetry of the roller groups in the test, and thus improving the accuracy of the material fixation process; in addition, by calculating the difference between the long side standard and the standard value and setting the standard distance, the distance can be controlled before the material enters the roller group to ensure that the size of the test material is consistent with the set standard value, which is crucial for the standardization and consistency of the test results; when the matching position between the shorter side of the test material and the joint area is accurately controlled, the docking part of the material can be ensured to be stable and will not shift or misalign when being sent into the roller fixing module, thereby improving the accuracy of the feeding process; especially by controlling the synchronous rotation of the two sets of roller groups, the smooth transmission of the test material can be achieved. When the joint area of the test material enters the roller clamping range, it is ensured that the material will not move incorrectly due to uneven rotation or improper operation, thus avoiding experimental errors caused by improper operation.

[0127] 6. The method of using a tension detection module for tension detection and adjustment has significant advantages. First, by configuring two pressure sensors and precisely arranging them on a horizontal line parallel to the rollers of the second roller group, the tension detection module can monitor the tension of the detected material in real time and with high precision. This design enables the tension detection to cover both ends of the material and ensures the uniformity and symmetry of the measurement process, effectively avoiding deviations caused by local measurement errors and ensuring the reliability of the entire detection process. Second, by calculating the difference between the pressure values measured by the two pressure sensors and comparing it with the set pressure threshold, it is possible to clearly determine whether the tension is within the normal range. This precise determination method avoids the ambiguity of manual judgment and provides a quantitative and operable standard for evaluating the tension state of the material. In the case of abnormal tension, the design realizes the optimization adjustment of tension by adjusting the position of the roller group. Specifically, by obtaining the midpoint of the roller axis and setting a rotation baseline, the tension adjustment process has a clear physical basis, ensuring that the movement of the roller group during the tension adjustment process is targeted rather than blind, enhancing the precision and effectiveness of the adjustment process. In particular, based on the comparison of the pressure value differences, the tight side and its corresponding tight end are accurately located, ensuring that the adjustment process can specifically address the problem of uneven tension and effectively avoiding test instability or inaccuracy caused by uneven tension. In addition, during the entire tension adjustment process, by real-time monitoring the pressure changes detected by the pressure sensors, it is possible to ensure that each step of the adjustment operation receives sufficient feedback, avoiding over-adjustment or under-adjustment, making the tension control more precise and controllable, ensuring the best tension state of the tested material, and thus providing more stable and reliable test conditions for the subsequent impact resistance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0128] Figure 1 It is a schematic diagram of the heating area of the present invention.

[0129] Figure 2 It is a schematic diagram of the bonding reference line of the present invention.

[0130] Figure 3 It is a schematic diagram of the reference plane of the present invention.

[0131] Figure 4 It is a schematic diagram of the centering judgment line of the present invention.

[0132] Figure 5 It is a schematic diagram of the roller fixing module of the present invention.

[0133] Figure 6 It is a schematic diagram of the bonding container of the present invention.

[0134] Figure 7 It is a schematic diagram of the initial state of the pick-up suction cup of the present invention.

[0135] Figure 8 This is a schematic diagram of the reverse state of the pickup suction cup of the present invention.

[0136] Figure 9 This is a schematic structural diagram of the pickup suction cup of the present invention.

[0137] Wherein: 1 - short side standard, 2 - long side standard, 3 - heating area, 4 - standard value, 5 - inner bottom surface, 6 - first area, 7 - first short side, 8 - bonding reference line, 9 - midpoint of the two long sides of the inner bottom surface, 10 - second area, 11 - second short side, 12 - reference plane, 13 - covered part of the overlapping area on the inner bottom surface, 14 - midpoint of the bonding reference line, 15 - centering judgment line, 16 - two intersection points, 17 - roller fixing module, 18 - rotating shaft, 19 - pressure sensor in the tension detection module, 20 - electric telescopic rod, 21 - first roller group, 22 - second roller group, 23 - bonding container, 24 - standard material, 25 - guiding structure, 26 - joint area formed by bonding, 27 - pickup suction cup, 28 - air path, 29 - soft airbag, 30 - gravity block, 31 - first suction cup, 32 - second suction cup, 33 - air chamber, 34 - one-way valve, 35 - exhaust hole. Specific embodiments

[0138] 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.

[0139] Embodiment 1, a detection method for detecting the impact resistance of materials, including:

[0140] Performing bonding treatment on the thin film material to be subjected to impact resistance detection to form a continuous chain-like test material, including:

[0141] Using two suction structures in the pickup suction cup to respectively suck the two ends of each thin film material;

[0142] Transporting the thin film material above the bonding position; the bonding position is the position where the thin film material is placed in the bonding container;

[0143] Controlling one of the two suction structures to release the thin film material first. When the thin film material is separated from the suction structure and falls, controlling the other suction structure to release the thin film material, so that the thin film material moves towards the target position by itself during the falling process and finally falls to the target position; the target position is the position close to the first short side or the second short side described in the following content;

[0144] Bond the thin film material at the bonding position to form a continuous chain-like test material;

[0145] Each bonding area formed by the bonding treatment on the test material is denoted as a seam area;

[0146] Stretch and fix every two adjacent seam areas respectively to flatten the test material between the seam areas;

[0147] Detect the impact resistance of the flattened test material.

[0148] The two suction structures of the pick-up suction cup include a first suction cup and a second suction cup;

[0149] One end of the first suction cup is connected to one end of a soft airbag, and the other end of the soft airbag is connected to an air chamber;

[0150] The air chamber is connected to an air pump through an air passage;

[0151] A gravity block is connected below the soft airbag;

[0152] The air chamber includes an exhaust hole and a one-way valve leading from the soft airbag to the air chamber;

[0153] The second suction cup is connected to the air pump through an air passage;

[0154] The air passage includes two branches, one branch is connected to the air chamber, and the other branch is connected to the second suction cup.

[0155] The detection of the impact resistance of the flattened test material includes:

[0156] Feed the test material into a roller fixing module for flattening and fixing;

[0157] The test material located in the roller fixing module is denoted as the detection material;

[0158] Use a tension detection module to detect the tension of the detection material and judge whether the tension is normal;

[0159] If the tension is abnormal, use the roller fixing module to adjust the tension of the detection material to make the tension normal after the tension adjustment;

[0160] If the tension is normal, then detect the impact resistance of the detection material, specifically including:

[0161] S1. Obtain the center point of the upper surface of the detection material and denote it as the impact point;

[0162] S2. Draw a straight line perpendicular to the horizontal plane through the impact point and denote this straight line as the impact reference line;

[0163] S3. Obtain the impact height required for the impact resistance performance test, and record it as the impact height;

[0164] S4. Obtain a point above the impact point on the impact reference line, and the distance between this point and the impact point is equal to the impact height, and record it as the impact release point;

[0165] S5. Release a solid ball at the impact release point so that the solid ball impacts the test material;

[0166] S6. After the impact is completed, transfer the solid ball from the test material;

[0167] S7. Record the impact marks on the test material and analyze the impact resistance performance of the test material; the analysis of the impact resistance performance of the test material is based on the prior art, such as the falling ball impact test method disclosed in ASTM D1709 standard. Through the deformation marks generated by the solid ball impacting the thin film material, the impact resistance performance of the material can be quantitatively analyzed;

[0168] S8. Control the rotation of the roller fixing module to replace the test material;

[0169] Repeat steps S1 - S8. After each thin film material that makes up the test material has been impacted once, the impact test on the test material is completed.

[0170] The bonding treatment of the thin film material to be tested for impact resistance performance to form a continuous chain - type test material specifically includes:

[0171] Use the bonding module to perform bonding treatment on the thin film material;

[0172] The bonding module includes: a bonding container, a guiding structure, and a picking suction cup; the picking suction cup is as Figure 7As shown in the figure, when it is necessary to suck the standard material, air is drawn through the air path. The second suction cup connected to a branch of the air path forms a negative pressure to suck the standard material. The one-way valve in the air chamber connected to the other branch of the air path opens and conducts with the soft airbag. At the same time, the soft airbag shrinks and rises, and the first suction cup connected to the soft airbag forms a negative pressure to suck the standard material. When it is necessary to release the standard material, the air extraction through the air path is stopped. At this time, the negative pressure of the second suction cup disappears, and the standard material directly detaches from the second suction cup. At the same time, the soft airbag connected to the first suction cup is driven by the falling of the gravity block to elongate. The one-way valve in the air chamber closes, and air is only drawn into the soft airbag through the exhaust hole, and at the same time, a suction is generated on the first suction cup. Therefore, when the negative pressure of the second suction cup disappears, the first suction cup will still have a negative pressure for a period of time. At this time, the standard material will not detach from the first suction cup. When the gravity block reaches the lowest point, the soft airbag stops elongating. At this time, the suction effect of the soft airbag on the first suction cup disappears, and the negative pressure of the first suction cup disappears. The first suction cup releases the standard material. Thus, when the pick-up suction cup sucks the standard material and then releases it, the standard material will first detach from the second suction cup and, after a period of time, detach from the first suction cup;

[0173] Referring to Figure 6 , the bonding container is an open container with only one bottom surface;

[0174] The guiding structure is located on the inner wall of the bonding container;

[0175] Referring to Figure 1 , the inner surface of the bonding container that serves as the bottom surface of the container is denoted as the inner bottom surface;

[0176] The two long sides and two short sides of the inner bottom surface are obtained, and the length of any one long side is obtained and denoted as the long side length, and the length of any one short side is obtained and denoted as the short side length;

[0177] A heating area is set on the inner bottom surface of the bonding container, and the width value of this heating area is denoted as the standard value;

[0178] The sum of the long side length and the standard value is calculated, and half of the obtained value is denoted as the long side standard;

[0179] The length equal to the short side length is taken and denoted as the short side standard;

[0180] The thin film material to be tested for impact resistance is cut into a rectangle, and the length of the cut rectangular thin film material is equal to the long side standard, and the width is equal to the short side standard. The cut thin film material is denoted as the standard material. The step of bonding the thin film material to form the standard material, combined with the bonding module and precise dimension design, can significantly improve the consistency and accuracy of the thin film material in the impact resistance test. First, through the precise design of the bonding container and the guiding structure, it can ensure the precise docking and positioning of the thin film material during the bonding process, which reduces the possibility of unevenness and displacement of the material during subsequent bonding. Second, by setting the heating area and controlling the standardization of heating, the temperature and pressure during the bonding process are effectively controlled, thereby ensuring the uniformity and reliability of bonding. By precisely calculating the long side standard and the short side standard, the thin film material is cut so that the size of each standard material strictly meets the test requirements, thus avoiding the inconsistency caused by material size differences and further improving the comparability and accuracy of the test. In addition, this process enables the thin film material to conform to the size of the bonding container, so that the thin film material can be better fixed and restricted by the bonding container during subsequent bonding, thereby improving the bonding effect on the thin film material.

[0181] The step of bonding the thin film material to be tested for impact resistance to form a continuous chain-like test material further includes:

[0182] Refer to Figure 2 , obtain the midpoints of the two long sides of the inner bottom surface and connect them. Denote the obtained connection line as the bonding reference line;

[0183] The bonding reference line divides the inner bottom surface into two rectangular regions. Denote one rectangular region as the first region and the other rectangular region as the second region;

[0184] Denote the short side of the two short sides of the inner bottom surface located in the first region as the first short side, and the short side located in the second region as the second short side;

[0185] Refer to Figure 3 , make a plane passing through the bonding reference line and perpendicular to the horizontal plane, and denote it as the reference plane;

[0186] For each standard material, obtain the midpoints of its two long sides and connect them. Denote the connection line as the connection midline of the standard material;

[0187] Set the maximum allowable spacing;

[0188] If it is the first standard material currently, control the pickup suction cup to reverse so that the second suction cup in the pickup suction cup is in front of the first suction cup. Refer to Figure 8, use the pick-up suction cup to pick up the first standard material, carry it above the bonding container, adjust the position of the standard material so that the connection center line of the standard material is parallel to the bonding reference line, and the distance between the projection line segment of the connection center line of the standard material perpendicular to the inner bottom surface and the first short side ≤ the maximum allowable distance. Keep the position of the standard material unchanged, stop the air extraction, release the standard material with the second suction cup first, and then release the standard material with the first suction cup, so that the standard material approaches the direction of the first short side during the process of falling into the bonding container; in the present invention, when the air extraction stops, the air path in the pick-up suction cup is communicated with the outside atmosphere;

[0189] S9. If it is the standard material after the first one currently, control the pick-up suction cup to return to the initial state, make the first suction cup in the pick-up suction cup be in front of the second suction cup, and refer to Figure 7 , use the pick-up suction cup to pick up the standard material, carry it above the bonding container, adjust the position of the standard material so that the connection center line of the standard material is parallel to the bonding reference line, and the distance between the projection line segment of the connection center line of the standard material perpendicular to the inner bottom surface and the second short side ≤ the maximum allowable distance. Keep the position of the standard material unchanged, stop the air extraction, release the standard material with the second suction cup first, and then release the standard material with the first suction cup, so that the standard material approaches the direction of the second short side during the process of falling into the bonding container, and its falling state into the bonding container is as Figure 6As shown in the figure; by accurately positioning and controlling the position of the thin film material in the bonding container, the high-precision docking of the thin film material during the entire bonding process is ensured, thereby improving the accuracy and consistency of the impact resistance performance test; first, by obtaining the midpoint of the long side of the inner bottom surface and drawing the bonding reference line, the bottom surface is divided into two regions, which provides a clear reference framework for the precise placement of subsequent materials, avoids the deviation of the material position during the bonding process, and ensures that the docking position of the material can be accurately aligned with the bonding reference line; secondly, use the picking suction cup to transport the standard material above the bonding container, and by adjusting the position of the standard material, make its connection midline parallel to the bonding reference line. This fine control step can ensure that each thin film material can be strictly positioned according to the design requirements during the bonding process, avoiding problems such as uneven bonding and inconsistent structure caused by material offset or misalignment; in addition, controlling the picking suction cup to transport the standard material above the bonding container, rather than directly controlling the picking suction cup to place the standard material into the bonding container, avoids the picking suction cup being affected by the temperature generated by heating in the bonding container when directly placing the thin film material into the bonding container, resulting in deformation of the picking suction cup due to heat, affecting the suction effect of the suction cup; at the same time, by combining the control of the maximum allowable distance between the standard material and the short side, and the order of controlling the two suction cups in the picking suction cup to release the standard material successively, when the standard material needs to fall into the first area, control the picking suction cup to reverse, so that the second suction cup is closer to the first short side, and the second suction cup closer to the first short side releases the standard material first, and the first suction cup closer to the second short side releases the standard material later, so that the standard material approaches the direction of the first short side during the process of falling into the bonding container and falls into the first area; when the standard material needs to fall into the second area, control the picking suction cup to return to the initial state, so that the second suction cup closer to the second short side releases the standard material first, and the first suction cup closer to the first short side releases the standard material later, so that the standard material approaches the direction of the second short side during the process of falling into the bonding container and falls into the second area; this method can make the standard material fall into the target position in the bonding container as much as possible, thereby ensuring the precise placement of the material.

[0190] S10. After two standard materials are placed in the bonding container, obtain the states of the two standard materials in the bonding container;

[0191] S11. If the two standard materials in the bonding container are completely inside the bonding container, perform a coincidence judgment;

[0192] S12. If there is a standard material in the bonding container that is not completely inside the bonding container, prompt for manual adjustment.

[0193] The said coincidence judgment includes:

[0194] S13. Obtain the overlapping part of two standard materials in the container, and record this part as the overlapping area;

[0195] S14. If the part covered by the overlapping area on the inner bottom surface does not include the bonding reference line, prompt for manual adjustment;

[0196] S15. If the part covered by the overlapping area on the inner bottom surface includes the bonding reference line, perform a centering judgment.

[0197] Refer to Figure 4 , the centering judgment includes:

[0198] S16. Obtain the midpoint of the bonding reference line, and draw a perpendicular line passing through this midpoint and perpendicular to the bonding reference line and located in the same horizontal plane, which is recorded as the centering judgment line;

[0199] S17. Obtain the two intersection points of the centering judgment line and the part covered by the overlapping area on the inner bottom surface, and respectively obtain the distances from each intersection point to the midpoint of the bonding reference line, which are respectively recorded as the first centering distance and the second centering distance;

[0200] S18. Set a centering threshold for judging whether the overlapping area is centered;

[0201] S19. Calculate the difference between the first centering distance and the second centering distance and compare it with the centering threshold;

[0202] S20. If the difference between the first centering distance and the second centering distance > the centering threshold, prompt for manual adjustment;

[0203] S21. If the difference between the first center distance and the second center distance ≤ the center threshold, direct bonding is performed. By using a visual detection module and precise coincidence and centering judgment techniques, it is ensured that the thin film materials during the bonding process can be precisely aligned, improving the consistency and accuracy of the test materials. First, the visual detection module is used to monitor the standard materials in the bonding container in real time, which can quickly detect whether the materials are completely inside the container. By judging the coincidence of the materials, it is ensured that the relative positions of the two standard materials in the bonding container meet the requirements, avoiding material misalignment or overlap caused by position deviation and ensuring the uniformity of the bonding area. If the materials do not completely enter the container, the system will automatically give a prompt to ensure that manual adjustment is made in a timely manner. Further coincidence judgment, especially by checking whether the coincidence area covers the bonding reference line, ensures the accuracy of material docking and avoids bonding mistakes caused by incomplete coincidence or incorrect positions. By performing centering judgment on the coincidence area, the positioning accuracy of the standard materials is further improved, ensuring the alignment of the materials during the bonding process. Obtaining the distance between the intersection point of the centering judgment line and the coincidence area can effectively measure and correct the centering of the materials. By calculating the difference between the first center distance and the second center distance and comparing it with the set center threshold, efficient monitoring of the material position deviation can be achieved. Once it is found that the error exceeds the tolerance range, the system will prompt for manual adjustment. This process effectively avoids the inconsistency caused by small position deviations. Through these precise positioning and control measures, the precise bonding of the materials is ensured, greatly improving the bonding quality and ensuring the accuracy and reliability of subsequent impact resistance tests.

[0204] S22. The so-called direct bonding specifically means: controlling the heating area in the bonding container to heat, so that the coincidence area of the standard materials is melted and bonded.

[0205] S23. Take half of the standard value as the bonding distance.

[0206] S24. After the bonding is completed, pull the standard materials in the direction from the center point of the second area to the center point of the first area.

[0207] S25. When the distance between the short side of the standard material in the second area and the bonding reference line is equal to the bonding distance, stop pulling the standard materials.

[0208] Repeat steps S9 - S25. After all standard materials are bonded, the bonding process of the thin - film material is completed to form a test material. By controlling the heating of the overlapping area in the heating container, the bonded parts of the standard materials are melted and firmly bonded, effectively avoiding the problem of uneven bonding caused by insufficient local heating and ensuring the integrity and firmness of the bonded area. During the bonding process, the system uses half of the standard value as the bonding distance and precisely controls the way of pulling the standard materials to ensure the proper position of the subsequent material bonding, avoiding material misalignment and ensuring the accuracy and uniformity of each bonding. In addition, bonding single - layer thin - film materials together can effectively improve the test efficiency of the impact test. In the traditional method of conducting impact tests on single - layer thin - films one by one, each film usually needs to be independently clamped and adjusted, which not only takes a long time but is also easily affected by the operator, resulting in a non - standardized test process. However, by bonding the thin - film materials into a long strip, it is possible to conduct impact tests on multiple areas under the clamping and adjustment of rollers, greatly improving the continuity and automation of the test.

[0209] Feeding the test material into the roller fixing module for flattening and fixing includes:

[0210] The roller fixing module includes four cylindrical rollers. Every two rollers form a roller group. The two rollers in each roller group are arranged vertically, parallel to and in contact with each other. At the same time, the axes of the two rollers in each roller group are in the same plane perpendicular to the horizontal plane.

[0211] The two roller groups are respectively denoted as the first roller group and the second roller group.

[0212] Respectively obtain the rollers in the first roller group and the second roller group that are below the other roller among the two rollers in each group, and denote them as the bottom rollers of each roller group.

[0213] Respectively obtain the axes of the bottom rollers of the first roller group and the second roller group, and denote them as the first bottom axis and the second bottom axis respectively.

[0214] When controlling the movement of the first roller group and the second roller group, the first bottom axis and the second bottom axis remain on the same horizontal plane.

[0215] Calculate the difference between the long - side standard and twice the standard value, and denote the obtained result as the standard distance.

[0216] Control the distance between the first roller group and the second roller group to be less than or equal to the standard distance.

[0217] Among the four sides of the test material, take the two shorter sides, and arbitrarily denote one of the shorter sides as the starting side and the other as the ending side.

[0218] The seam area closest to the starting edge is denoted as the first seam area; the seam area is formed by bonding, as Figure 6 shown;

[0219] The area between the starting edge and the first seam area on the test material is denoted as the first detection area;

[0220] Pass the starting edge through between the two rollers in the second roller group, and control the second roller group to rotate so that the test material moves in the direction closer to the first roller group;

[0221] When the starting edge of the test material touches the first roller group, pass the starting edge of the test material through between the two rollers in the first roller group, and control the first roller group and the second roller group to rotate simultaneously;

[0222] When the starting edge of the test material passes through the first roller group and the first seam area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the first detection area, control the first roller group and the second roller group to stop rotating, and complete the feeding of the test material into the roller fixing module. By using two sets of roller groups composed of four cylindrical rollers, a uniform and stable material clamping effect can be provided; each set of rollers consists of two upper and lower rollers and is in contact with each other to ensure that the test material can be evenly clamped between the two rollers, avoiding the problems of material offset or unstable position that may be caused by a single roller. Such a design enhances the accuracy of material fixation and ensures the stability of the material during subsequent impact tests; secondly, by defining the two roller groups as the first roller group and the second roller group respectively and ensuring that the bottom roller axes of each roller group are on the same horizontal plane, the consistency and symmetry of the positions between the roller groups can be achieved, thereby reducing the errors caused by the asymmetry of the roller groups in the test and improving the accuracy of the material fixation process; in addition, by calculating the difference between the long side standard and the standard value and setting the standard distance, the distance control can be carried out before the material enters the roller group to ensure that the size of the test material is consistent with the set standard value, which is crucial for the standardization and consistency of the test results; when the mating position between the shorter side of the test material and the seam area is accurately controlled, the docking part of the material can be ensured to be stable and will not shift or misalign when being fed into the roller fixing module, thereby improving the accuracy of the feeding process; especially by controlling the synchronous rotation of the two sets of roller groups, the stable transmission of the test material can be achieved. When the seam area of the test material enters the roller clamping range, it is ensured that the material will not move incorrectly due to uneven rotation or improper operation, thus avoiding experimental errors caused by improper operation.

[0223] The use of a tension detection module to detect the tension of the detection material includes:

[0224] The tension detection module includes two pressure sensors, and the two pressure sensors are on a horizontal line parallel to the rollers of the second roller group;

[0225] Transfer the tension detection module under the detection material, and make the connection line of the two pressure sensors in the tension detection module pass through the impact point of the detection material;

[0226] Control the two pressure sensors in the tension detection module to be in contact with two sides of the detection material respectively; Refer to Figure Five , control the electric telescopic rod to expand and contract to make the pressure sensor contact the detection material;

[0227] After the detection material contacts the pressure sensor, obtain the pressure values detected by each pressure sensor, and record them as the first pressure value and the second pressure value respectively;

[0228] Set a maximum difference threshold for judging whether the pressure values are approximately equal, denoted as the pressure threshold;

[0229] Calculate the difference between the first pressure and the second pressure value, and compare the absolute value of the difference with the pressure threshold;

[0230] If the absolute value of the difference > the pressure threshold, it is determined that the tension is normal;

[0231] If the absolute value of the difference ≤ the pressure threshold, it is determined that the tension is abnormal.

[0232] If the tension is abnormal, the detection material is tensioned and adjusted by using the roller fixing module to make the tension normal after the tension adjustment, including:

[0233] Respectively obtain the midpoints of the axes of the two rollers in the first roller group, and draw a straight line passing through these two midpoints, denoted as the rotation baseline;

[0234] Compare the first pressure value and the second pressure value;

[0235] If the first pressure value > the second pressure value, obtain the pressure sensor corresponding to the first pressure value, and obtain one side of the detection material in contact with the sensor, denoted as the tight side;

[0236] If the second pressure value > the first pressure value, obtain the pressure sensor corresponding to the second pressure value, and obtain one side of the detection material in contact with the sensor, denoted as the tight side;

[0237] Obtain the end of the two ends of the rollers in the first roller group that is closer to the tight side, denoted as the tight end;

[0238] Control the rotation of the rotating shaft as shown in Figure 5 to make the first roller group rotate around the rotation baseline, so that the tight end moves in the direction close to the second roller group;

[0239] During the rotation of the first roller group, monitor the pressure values detected by each pressure sensor in the tension detection module;

[0240] When the absolute value of the difference between the pressure values detected by the pressure sensors in the tension detection module ≤ the pressure threshold, control the first roller group to stop rotating and complete the tension adjustment. The method of using the tension detection module for tension detection and adjustment has significant advantages. First, by configuring two pressure sensors in the tension detection module and precisely arranging them on the horizontal line parallel to the rollers of the second roller group, it can monitor the tension of the detected material in real time and accurately; this design enables the detection of tension not only at both ends of the material but also ensures the uniformity and symmetry of the measurement process, effectively avoiding deviations caused by local measurement errors and ensuring the reliability of the entire detection process; second, by calculating the difference between the pressure values measured by the two pressure sensors and comparing it with the set pressure threshold, it can clearly determine whether the tension is within the normal range; this precise determination method avoids the ambiguity of manual judgment and provides a quantitative and operable standard to evaluate the tension state of the material; for abnormal tension situations, the design realizes the optimization adjustment of tension by adjusting the position of the roller group; specifically, by obtaining the midpoint of the roller axis and setting the rotation baseline, the tension adjustment process has a clear physical basis, ensuring that the movement of the roller group during the tension adjustment process is targeted rather than blind, enhancing the accuracy and effectiveness of the adjustment process; especially by comparing the difference in pressure values, accurately locating the tight side and its corresponding tight end, ensuring that the adjustment process can specifically solve the problem of uneven tension and effectively avoiding instability or inaccuracy in testing caused by uneven tension; in addition, during the entire tension adjustment process, by real-time monitoring the pressure changes detected by the pressure sensors, it can ensure that each step of the adjustment operation receives sufficient feedback, avoiding over-adjustment or under-adjustment situations, making the control of the tension more precise and controllable, ensuring the best tension state of the tested material, and thus providing more stable and reliable test conditions for subsequent impact resistance testing.

[0241] Control the rotation of the roller fixing module and replace the detected material, including:

[0242] Record the direction in which the second roller group points to the first roller group as the first direction, and record the opposite direction of the first direction as the second direction;

[0243] Obtain the seam area closest to the second roller group currently, denoted as the first adjacent seam area;

[0244] Obtain the seam area adjacent to the first adjacent seam area in the second direction, and denote it as the second adjacent seam area; if there is no seam area adjacent to the first adjacent seam area in the second direction, then use the end edge of the test material as the second adjacent seam area.

[0245] Denote the part of the test material between the first adjacent seam area and the second adjacent seam area as the next detection area.

[0246] Control the first roller group and the second roller group to rotate simultaneously, so that the test material moves in the first direction.

[0247] When the first adjacent seam area passes through the first roller group, and the second adjacent seam area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the next detection area, control the first roller group and the second roller group to stop rotating, and complete the replacement of the test material.

[0248] Embodiment 2: Refer to Figure 9 , different from the pickup suction cup in Embodiment 1, the two suction structures in the used pickup suction cup respectively suck the two ends of each thin film material, including:

[0249] The two suction structures of the pickup suction cup include a first suction cup and a second suction cup;

[0250] Among them, the first suction cup is connected to the first air pump through an air pipeline, and the second suction cup is connected to the second air pump through an air pipeline;

[0251] The first air pump and the second air pump are controlled independently respectively;

[0252] When the first suction cup and the second suction cup suck the thin film material and carry it above the bonding position, select to control the first air pump or the second air pump to stop pumping air as needed, so that the thin film material is separated from the first suction cup or the second suction cup;

[0253] When the thin film material is separated from one suction cup and falls, control the air pump connected to the other suction cup to stop pumping air, so that the thin film material is separated from the other suction cup.

[0254] 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 also includes elements inherent to such process, method, article or device.

[0255] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A detection method for detecting the impact resistance of materials, characterized in that, Including: Bond the thin film materials that need to be tested for impact resistance to form continuous chain-like test materials, including: Use two suction structures in the pick-up suction cup to respectively suck the two ends of each thin film material; Transport the thin film material above the bonding position; Control one of the two suction structures to release the thin film material first. When the thin film material detaches from the suction structure and falls, control the other suction structure to release the thin film material, so that during the falling process of the thin film material, it moves towards the target position by itself and finally falls to the target position; Bond the thin film materials at the bonding position to form continuous chain-like test materials; Record each bonding area formed by the bonding treatment on the test material as a seam area; Stretch and fix each adjacent pair of seam areas respectively to flatten the test material between the seam areas; Perform impact resistance testing on the flattened test materials.

2. The detection method for detecting the anti-impact performance of a material according to claim 1, characterized in that, The step of using two suction structures in the pick-up suction cup to respectively suck the two ends of each thin film material includes: The two suction structures of the pick-up suction cup include a first suction cup and a second suction cup; Among them, the first suction cup is connected to the first air pump through an air pipeline, and the second suction cup is connected to the second air pump through an air pipeline; The first air pump and the second air pump are independently controlled; When the first suction cup and the second suction cup suck the thin film material and transport it above the bonding position, select and control the first air pump or the second air pump to stop pumping air as needed, so that the thin film material detaches from the first suction cup or the second suction cup; When the thin film material detaches from one suction cup and falls, control the air pump connected to the other suction cup to stop pumping air, so that the thin film material detaches from the other suction cup.

3. A detection method for detecting the anti-impact performance of a material according to claim 1, characterized in that, The step of using two suction structures in the pick-up suction cup to respectively suck the two ends of each thin film material further includes: The two suction structures of the pick-up suction cup include a first suction cup and a second suction cup; One end of the first suction cup is connected to one end of a soft airbag, and the other end of the soft airbag is connected to an air chamber; The air chamber is connected to an air pump through an air pipeline; A gravity block is connected below the soft airbag; The air chamber includes an exhaust hole and a one-way valve leading from the soft airbag to the air chamber; The second suction cup is connected to an air pump through an air pipeline; The air pipeline includes two branches, one of which is connected to the air chamber and the other is connected to the second suction cup.

4. A detection method for detecting the anti-impact performance of a material according to claim 1, characterized in that, The step of performing impact resistance testing on the flattened test materials includes: Send the test material into the roller fixing module for flattening and fixing; Record the test material located in the roller fixing module as the detection material; Use the tension detection module to detect the tension of the detection material and judge whether the tension is normal; If the tension is abnormal, use the roller fixing module to adjust the tension of the detection material to make the tension normal after the tension adjustment; If the tension is normal, perform impact resistance testing on the detection material, specifically including: S1. Obtain the center point of the upper surface of the detection material and record it as the impact point; S2. Draw a straight line perpendicular to the horizontal plane through the impact point and record this straight line as the impact reference line; S3. Obtain the impact height required for performing impact resistance testing and record it as the impact height; S4. Obtain a point above the impact point on the impact baseline, and the distance between this point and the impact point is equal to the impact height, and denote it as the impact release point; S5. Release a solid ball at the impact release point so that the solid ball impacts the test material; S6. After the impact is completed, transfer the solid ball from the test material; S7. Record the impact marks on the test material and analyze the impact resistance of the test material; S8. Control the rotation of the roller fixing module to replace the test material; Repeat steps S1 - S8. After each thin film material that makes up the test material has been impacted once, complete the impact detection of the test material.

5. The detection method for detecting the anti-impact performance of a material according to claim 3, characterized in that, The bonding treatment of the thin film materials that need to be tested for impact resistance to form a continuous chain - type test material specifically includes: Use the bonding module to perform bonding treatment on the thin film materials; The bonding module includes: a bonding container, a guiding structure, and a picking suction cup; The bonding container is an open - type container with only one bottom surface; The guiding structure is located on the inner wall of the bonding container; Obtain the inner surface of the bonding container that serves as the bottom surface of the container and denote it as the inner bottom surface; Obtain the two long sides and two short sides of the inner bottom surface, and obtain the length of any one long side, denoted as the long side length, and obtain the length of any one short side, denoted as the short side length; Set a heating area on the inner bottom surface of the bonding container, and denote the width value of this heating area as the standard value; Calculate the sum of the long side length and the standard value, and take half of the obtained value and denote it as the long side standard; Take a length equal to the short side length and denote it as the short side standard; Cut the thin film material to be tested for impact resistance into a rectangle, and make the length of the cut rectangular thin film material equal to the long side standard and the width equal to the short side standard. Denote the cut thin film material as the standard material; Obtain the mid - points of the two long sides of the inner bottom surface and connect them. Denote the obtained connection line as the bonding baseline; The bonding baseline divides the inner bottom surface into two rectangular areas. Denote one rectangular area as the first area and the other rectangular area as the second area; Denote the short side of the two short sides of the inner bottom surface that is located in the first area as the first short side, and denote the short side that is located in the second area as the second short side; Make a plane passing through the bonding baseline and perpendicular to the horizontal plane, and denote it as the reference plane; For each standard material, obtain the mid - points of its two long sides and connect them. Denote the connection line as the connection mid - line of the standard material; Set the maximum allowable spacing; If it is the first standard material currently, control the picking suction cup to reverse so that the second suction cup in the picking suction cup is in front of the first suction cup. Use the picking suction cup to suck the first standard material, carry it above the bonding container, adjust the position of the standard material so that the connection mid - line of the standard material is parallel to the bonding baseline, and the spacing between the projection line segment of the connection mid - line of the standard material perpendicular downward on the inner bottom surface and the first short side ≤ the maximum allowable spacing. Keep the position of the standard material unchanged and stop pumping air; S9. If it is the standard material after the first one currently, control the pickup suction cup to return to the initial state, so that the first suction cup in the pickup suction cup is in front of the second suction cup. Use the pickup suction cup to suck the standard material, carry it above the bonding container, adjust the position of the standard material, make the connection midline of the standard material parallel to the bonding reference line, and make the distance between the projection line segment of the connection midline of the standard material perpendicular downward on the inner bottom surface and the second short side ≤ the maximum allowable distance. Keep the position of the standard material unchanged and stop air extraction; S10. After two standard materials are placed in the bonding container, obtain the states of the two standard materials in the bonding container; S11. If the two standard materials in the bonding container are completely inside the bonding container, perform a coincidence judgment; S12. If there is a standard material in the bonding container that is not completely inside the bonding container, prompt for manual adjustment.

6. The detection method for detecting the impact resistance of a material according to claim 5, characterized in that The said performing the coincidence judgment includes: S13. Obtain the overlapping part of the two standard materials in the container, and record this part as the overlapping area; S14. If the part covered by the overlapping area on the inner bottom surface does not include the bonding reference line, prompt for manual adjustment; S15. If the part covered by the overlapping area on the inner bottom surface includes the bonding reference line, perform a centering judgment; The said centering judgment includes: S16. Obtain the midpoint of the bonding reference line, and draw a perpendicular line perpendicular to the bonding reference line and in the same horizontal plane through this midpoint, denoted as the centering judgment line; S17. Obtain the two intersection points of the centering judgment line and the part covered by the overlapping area on the inner bottom surface, and respectively obtain the distance from each intersection point to the midpoint of the bonding reference line, denoted as the first centering distance and the second centering distance; S18. Set a centering threshold for judging whether the overlapping area is centered; S19. Calculate the difference between the first centering distance and the second centering distance and compare it with the centering threshold; S20. If the difference between the first centering distance and the second centering distance > the centering threshold, prompt for manual adjustment; S21. If the difference between the first centering distance and the second centering distance ≤ the centering threshold, directly perform bonding; S22. The said directly performing bonding is specifically: control the heating area in the bonding container to heat, so that the overlapping area of the standard material is melted and bonded; S23. Take half of the standard value as the bonding distance; S24. After bonding is completed, pull the standard material in the direction from the center point of the second area to the center point of the first area; S25. When the distance between the short side of the standard material in the second area and the bonding reference line is equal to the bonding distance, stop pulling the standard material; Repeat S9 - S25. When all standard materials are bonded, complete the bonding process of the thin film material to form a test material.

7. A detection method for detecting the impact resistance of a material according to claim 4, characterized in that, The said sending the test material into the roller fixing module for flattening and fixing includes: The roller fixing module includes four cylindrical rollers, where every two rollers form a roller group. The two rollers in each roller group are arranged vertically, the two rollers are parallel to each other and in contact with each other, and at the same time, the axes of the two rollers in each roller group are in the same plane perpendicular to the horizontal plane; Denote the two roller groups as the first roller group and the second roller group respectively; Respectively obtain the rollers in the first roller group and the second roller group that are below the other roller among the two rollers, and respectively record them as the bottom rollers of each roller group; Respectively obtain the axes of the bottom rollers of the first roller group and the second roller group, and respectively record them as the first bottom axis and the second bottom axis; When controlling the movement of the first roller group and the second roller group, the first bottom axis and the second bottom axis remain on the same horizontal plane; Calculate the difference between the long side standard and twice the standard value, and record the obtained result as the standard distance; Control the distance between the first roller group and the second roller group to be less than or equal to the standard distance; Among the four sides of the test material, take the two shorter sides, and arbitrarily select one of the two shorter sides as the starting side, and the other side as the ending side; Record the joint area closest to the starting side as the first joint area; Record the area between the starting side and the first joint area on the test material as the first detection area; Pass the starting side through between the two rollers in the second roller group, and control the second roller group to rotate so that the test material moves in the direction approaching the first roller group; When the starting side of the test material touches the first roller group, pass the starting side of the test material through between the two rollers in the first roller group, and control the first roller group and the second roller group to rotate simultaneously; When the starting side of the test material passes through the first roller group, and the first joint area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the first detection area, control the first roller group and the second roller group to stop rotating, and complete feeding the test material into the roller fixing module.

8. A detection method for detecting the impact resistance of a material according to claim 4, characterized in that, The use of the tension detection module to detect the tension of the detection material includes: The tension detection module includes two pressure sensors, and the two pressure sensors are on a horizontal line parallel to the rollers of the second roller group; Transfer the tension detection module below the detection material, and make the connection line of the two pressure sensors in the tension detection module pass through the impact point of the detection material; Control the two pressure sensors in the tension detection module to be in contact with two sides of the detection material respectively; Obtain the pressure values detected by each pressure sensor after the detection material contacts the pressure sensor, and respectively record them as the first pressure value and the second pressure value; Set a maximum difference threshold for judging whether the pressure values are approximately equal, and record it as the pressure threshold; Calculate the difference between the first pressure and the second pressure value, and compare the absolute value of the difference with the pressure threshold; If the absolute value of the difference > the pressure threshold, it is determined that the tension is normal; If the absolute value of the difference ≤ the pressure threshold, it is determined that the tension is abnormal.

9. A detection method for detecting the impact resistance of a material according to claim 8, characterized in that, If the tension is abnormal, the use of the roller fixing module to perform tension adjustment on the detection material to make the tension normal after adjustment includes: Respectively obtain the midpoints of the axes of the two rollers in the first roller group, and draw a straight line passing through these two midpoints, and record it as the rotation baseline; Compare the first pressure value and the second pressure value; If the first pressure value > the second pressure value, obtain the pressure sensor corresponding to the first pressure value, and obtain one side of the detection material in contact with the sensor, and record it as the tight side; If the second pressure value > the first pressure value, obtain the pressure sensor corresponding to the second pressure value, and obtain one edge of the detection material in contact with the sensor, denoted as the tight edge; Obtain the end of the roller at both ends of the first roller group that is closer to the tight edge, denoted as the tight end; Control the first roller group to rotate around the rotation baseline so that the tight end moves in the direction closer to the second roller group; During the rotation of the first roller group, monitor the pressure values detected by each pressure sensor in the tension detection module; When the absolute value of the difference between the pressure values detected by the pressure sensors in the tension detection module ≤ the pressure threshold, control the first roller group to stop rotating and complete the tension adjustment.

10. A detection method for detecting the impact resistance of a material according to claim 4, characterized in that, The control of the rotation of the roller fixing module to replace the detection material includes: Denote the direction in which the second roller group points to the first roller group as the first direction, and denote the opposite direction of the first direction as the second direction; Obtain the seam area that is currently closest to the second roller group, denoted as the first adjacent seam area; Obtain the seam area adjacent to the first adjacent seam area in the second direction, and denote it as the second adjacent seam area; if there is no seam area adjacent to the first adjacent seam area in the second direction, then use the end edge of the test material as the second adjacent seam area; Denote the part of the test material between the first adjacent seam area and the second adjacent seam area as the next detection area; Control the first roller group and the second roller group to rotate simultaneously so that the test material moves in the first direction; When the first adjacent seam area passes through the first roller group, and the second adjacent seam area has not passed through the second roller group, and the test material between the first roller group and the second roller group is the next detection area, control the first roller group and the second roller group to stop rotating and complete the replacement of the detection material.

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