A detection method for detecting the impact resistance of a material

Abstract

This invention relates to the field of impact resistance testing technology and discloses a testing method for testing the impact resistance of materials. The method includes: bonding a thin film material into a long strip shape and clamping the material with four roller sets to ensure its stability during the test. Each roller set consists of rollers arranged vertically. By controlling the rotation of the roller sets, the non-impacted areas can be adjusted to the impact areas, thereby realizing continuous multiple impact tests. During the test, each area of ​​the thin film material can be uniformly impacted, avoiding the inefficiency of traditional sheet-by-sheet material testing.

Description

Technical Field

[0001] This invention relates to the field of testing the impact resistance of materials, specifically a testing method for testing the impact resistance of materials. Background Technology

[0002] In the impact resistance testing of thin film materials, traditional techniques typically employ a method of testing each thin film individually. This method involves fixing each thin film material separately and conducting impact tests, which usually requires independent operation and adjustment of each film. This approach is not only inefficient, but also requires readjustment of the material between each test, resulting in long testing times and frequent manual operations, making it difficult to guarantee the stability and consistency of the test results.

[0003] Currently, most common technical methods rely on physical clamping devices, such as pneumatic clamps and mechanical clamps, to hold a single sheet of film material and keep it under tension before conducting an impact test. However, in practical applications, these methods struggle to achieve uniform tension for each sheet of film material, and lack effective automation for continuous testing of multiple sheets of film material. This results in a cumbersome and inaccurate testing process, especially during multiple impact tests, where the clamping and tension adjustment of the film material cannot be precisely controlled, thus affecting the final test results.

[0004] To address this issue, this technical solution involves bonding multiple film materials into a long strip and clamping it with four rollers to maintain continuous tension and conduct continuous impact tests. After each impact, the rotation of the rollers is controlled to bring the unimpacted area between the rollers for the next impact test. The advantage of this method is that by bonding multiple film materials into a long strip, continuous impact testing is achieved. At the same time, the roller clamping system can stably tension and fix the film material, avoiding errors caused by manual adjustment. Summary of the Invention

[0005] This invention provides a testing method for detecting the impact resistance of materials, thereby helping to solve the problems mentioned in the background art.

[0006] This invention provides the following technical solution: a testing method for detecting the impact resistance of materials, comprising:

[0007] The thin film materials requiring impact resistance testing are bonded together to form a continuous chain of test materials, including:

[0008] Use the two suction structures in the pick-up suction cup to pick up both ends of each sheet of film material;

[0009] The film material is moved above the bonding location;

[0010] One of the two suction structures is controlled to release the film material first. After the film material detaches from the suction structure and falls, the other suction structure is controlled to release the film material, so that the film material moves towards the target position on its own during the falling process and eventually falls to the target position.

[0011] The film material at the bonding site is bonded together to form a continuous chain of test material;

[0012] Each adhesive area formed by the bonding treatment on the test material is recorded as a seam area;

[0013] Each pair of adjacent seam areas is stretched and fixed to flatten the test material between the seam areas.

[0014] The impact resistance of the flattened test material was tested.

[0015] Optionally, the use of two suction structures in the pick-up suction cup to pick up both ends of each sheet of film material includes:

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

[0017] One suction cup is connected to the first air pump through an air pipe, and the second suction cup is connected to the second air pump through an air pipe.

[0018] The No. 1 and No. 2 air pumps are controlled independently.

[0019] When suction cups 1 and 2 pick up the film material and move it above the bonding position, the first or second suction pump can be stopped as needed to detach the film material from suction cups 1 or 2.

[0020] Once the film material detaches from one suction cup and falls, the pump connected to the other suction cup stops pumping air, causing the film material to detach from the other suction cup.

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

[0022] The two suction structures of the pickup 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 the air chamber.

[0024] The air chamber is connected to a vacuum pump via an air passage;

[0025] A gravity block is connected to the bottom of the soft airbag;

[0026] The air chamber includes an exhaust port and a one-way valve that allows the soft air bag to flow into the air chamber;

[0027] The second suction cup is connected to the air pump via an air passage;

[0028] The air passage 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 test on the flattened test material includes:

[0030] The test material is fed into the roller fixing module for flattening and fixing;

[0031] The test material located in the roller fixing module is referred to as the test material;

[0032] The tension detection module is used to detect the tension of the test material to determine whether the tension is normal.

[0033] If the tension is abnormal, the tension of the test material can be adjusted by using the roller fixing module to bring the tension back to normal.

[0034] If the tension is normal, the impact resistance of the test material will be tested, specifically including:

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

[0036] S2. Draw a straight line perpendicular to the horizontal plane through the point of impact, and denote this line as the impact baseline.

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

[0038] S4. On the impact baseline, obtain a point located above the impact point and at a distance equal to the impact height from the impact point, and denote it as the impact release point.

[0039] S5. Use a solid ball to release at the impact release point, so that the solid ball impacts the test material;

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

[0041] S7. Record the impact marks on the test material and analyze the impact resistance of the test material;

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

[0043] Repeat steps S1-S8 until each piece of thin film material that makes up the test material has been impacted once, thus completing the impact test of the test material.

[0044] Optionally, the bonding process for the thin film material requiring impact resistance testing to form a continuous chain of test materials specifically includes:

[0045] The film material is bonded using an adhesive module;

[0046] The bonding module includes: a bonding container, a guiding structure, and a pickup suction cup;

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

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

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

[0050] Obtain the two long sides and two short sides of the inner bottom surface, and obtain the length of any long side, denoted as the long side length; obtain the length of any short side, denoted as the short side length.

[0051] A heating zone is set on the bottom surface of the bonding container, and the width of the heating zone is recorded as the standard value.

[0052] Calculate the sum of the length of the longer side and the standard value, and take half of the result as the standard value of the longer side;

[0053] The length equal to the length of the shorter side is denoted as the standard length of the shorter side;

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

[0055] Find the midpoints of the two long sides of the inner bottom surface and connect them. Record the resulting line as the bonding baseline.

[0056] The bonding baseline divides the inner bottom surface into two rectangular areas, one of which is designated as area one and the other as area two.

[0057] The short side of the inner bottom surface located in region 1 is designated as short side 1, and the short side located in region 2 is designated as short side 2.

[0058] Draw a plane that passes through the bonding reference line and is perpendicular to the horizontal plane, and denote it as the reference plane;

[0059] For each standard material, obtain the midpoints of its two long sides and draw a line connecting them. This line is recorded as the connecting center line of the standard material.

[0060] Set the maximum allowable spacing;

[0061] If the current standard material is the first sheet, control the pick-up suction cup to reverse so that the second pick-up suction cup is in front of the first pick-up suction cup. Use the pick-up suction cup to pick up the first standard material and move it above the bonding container. Adjust the position of the standard material so that the connection centerline of the standard material is parallel to the bonding baseline, and the distance between the projection line segment of the vertical downward projection of the connection centerline of the standard material on the inner bottom surface and the first short side is less than or equal to the maximum allowable distance. Keep the position of the standard material unchanged and stop the air extraction.

[0062] S9. If the current standard material is after the first sheet, the control pick-up suction cup will return to its initial state, so that the first pick-up suction cup is in front of the second pick-up suction cup. Use the pick-up suction cup to pick up the standard material and move 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 make the distance between the projection line segment of the vertical downward projection of the connection center line of the standard material on the inner bottom surface and the second short side ≤ the maximum allowable distance. Keep the position of the standard material unchanged and stop the air extraction.

[0063] S10. After two standard materials are placed in the bonding container, obtain the status 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, then an overlap judgment is made.

[0065] S12. If a standard material is not completely inside the bonding container, a manual adjustment will be prompted.

[0066] Optionally, the overlap determination includes:

[0067] S13. Obtain the overlapping portion of two standard materials inside the container and record this portion as the overlapping area.

[0068] S14. If the overlapping area does not include the bonding baseline on the inner bottom surface, manual adjustment is required.

[0069] S15. If the overlapping area covers the part of the inner bottom surface that includes the bonding baseline, then centering judgment is performed.

[0070] The centering determination includes:

[0071] S16. Obtain the midpoint of the bonding reference line, and draw a perpendicular line through the midpoint that is perpendicular to the bonding reference line and located on the same horizontal plane, which is called the centering judgment line.

[0072] S17. Obtain the two intersection points of the part covered by the centering judgment line and the overlapping area on the inner bottom surface, and 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 the centering threshold for determining whether overlapping areas are centered;

[0074] S19. Calculate the difference between the centering distance of No. 1 and the centering distance of No. 2 and compare it with the centering threshold.

[0075] S20. If the difference between the centering distance of No. 1 and the centering distance of No. 2 is greater than the centering threshold, a manual adjustment is prompted.

[0076] S21. If the difference between the centering distance of No. 1 and the centering distance of No. 2 is less than or equal to the centering threshold, then the bonding is performed directly.

[0077] S22. The direct bonding process specifically involves controlling the heating area inside the bonding container to heat the overlapping areas of the standard materials so that they are melted and bonded.

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

[0079] S24. After bonding is completed, pull the standard material in the direction from the center point of area 2 to the center point of area 1.

[0080] S25. Stop pulling the standard material 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.

[0081] Repeat steps S9-S25 until all standard materials have been bonded, completing the bonding process for the film material to form the 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, with each pair of rollers forming a roller group. The two rollers in each roller group are arranged vertically, parallel to each other and in contact with each other. At the same time, the axes of the two rollers in each roller group are located on the same plane perpendicular to the horizontal plane.

[0084] The two roller groups are designated as roller group one and roller group two, respectively.

[0085] Obtain the roller that is below the other roller in each of the two roller groups in roller group 1 and roller group 2, and record them as the bottom roller of each roller group.

[0086] Obtain the axes of the bottom rollers of roller group 1 and roller group 2 respectively, and denote them as bottom axis 1 and bottom axis 2 respectively;

[0087] When controlling the movement of roller group 1 and roller group 2, the bottom axis of bottom group 1 and bottom axis of bottom group 2 remain on the same horizontal plane;

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

[0089] The distance between roller group one and roller group two shall be less than or equal to the standard distance;

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

[0091] The seam area closest to the starting edge is designated as the first seam area;

[0092] The area between the starting edge and the first seam area on the test material is designated as the first test area.

[0093] The starting edge is passed between two rollers in the second roller group, and the second roller group is rotated to move the test material toward the first roller group.

[0094] When the starting edge of the test material contacts the first roller group, pass the starting edge of the test material 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 edge of the test material passes through roller group one, and the first seam area does not pass through roller group two, and the test material between roller group one and roller group two is the first detection area, control roller group one and roller group two to stop rotating, thus completing the feeding of the test material into the roller fixing module.

[0096] Optionally, the step of using a tension detection module to detect the tension of the material includes:

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

[0098] Move the tension detection module under the material being tested, and make the connection between the two pressure sensors in the tension detection module pass through the impact point of the material being tested.

[0099] The two pressure sensors in the tension detection module are in contact with two edges of the material being tested, respectively.

[0100] After the test material comes into contact with the pressure sensor, the pressure value detected by each pressure sensor is obtained and recorded as pressure value number one and pressure value number two respectively;

[0101] Set the maximum difference threshold for determining whether pressure values ​​are approximately equal, denoted as the pressure threshold.

[0102] Calculate the difference between pressure value 1 and pressure value 2, and compare the absolute value of the difference with the pressure threshold.

[0103] If the absolute value of the difference is greater than the pressure threshold, then the tension is determined to be abnormal;

[0104] If the absolute value of the difference is less than or equal to the pressure threshold, then the tension is considered normal.

[0105] Optionally, if the tension is abnormal, the tension of the test material is adjusted by using a roller fixing module to normalize the tension, including:

[0106] Obtain the midpoints of the axes of the two rollers in roller group 1, and draw a straight line through these two midpoints, which is denoted as the rotation baseline;

[0107] Compare pressure value #1 and pressure value #2;

[0108] If pressure value 1 is greater than pressure value 2, then obtain the pressure sensor corresponding to pressure value 1, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge.

[0109] If pressure value 2 is greater than pressure value 1, then obtain the pressure sensor corresponding to pressure value 2, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge.

[0110] The end that is closer to the tight side among the two ends of the first roller group is 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 of approaching the second roller group;

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

[0113] When the absolute value of the difference between the pressure values ​​detected by the pressure sensor in the tension detection module is less than or equal to the pressure threshold, the first roller group is controlled to stop rotating, thus completing the tension adjustment.

[0114] Optionally, the control roller fixing module rotates to replace the detection material, including:

[0115] The direction from roller group 2 to roller group 1 is denoted as the first direction, and the opposite direction of the first direction is denoted as the second direction.

[0116] Get the seam area that is closest to the second roller group and record it as the first adjacent seam area;

[0117] The joint area adjacent to the first adjacent joint area is obtained in the second direction and recorded as the second adjacent joint area; if there is no joint area adjacent to the first adjacent joint area in the second direction, the end edge of the test material is taken as the second adjacent joint area.

[0118] The portion of test material between the first adjacent seam area and the second adjacent seam area is designated as the next test 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 roller group 1 and the second adjacent seam area does not pass through roller group 2, and the test material between roller group 1 and roller group 2 is the next test area, control roller group 1 and roller group 2 to stop rotating to complete the replacement of test material.

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

[0122] 1. The process of bonding film materials to form standard materials, combined with bonding modules and precise dimensional design, can significantly improve the consistency and accuracy of film materials in impact resistance testing. First, the precise design of the bonding container and guide structure ensures accurate alignment and positioning of the film materials during the bonding process, reducing the possibility of unevenness and displacement in subsequent bonding. Second, by setting heating zones and controlling standardized heating, the temperature and pressure during the bonding process are effectively controlled, ensuring the uniformity and reliability of the bonding. By accurately calculating the long and short side standards and cutting the film materials, the dimensions of each standard material strictly meet the testing requirements, thus avoiding inconsistencies caused by material size differences and further improving the comparability and accuracy of the test. In addition, this process allows the film materials to conform to the dimensions of the bonding container, enabling the film materials to be better fixed and restrained by the bonding container during subsequent bonding, thereby improving the bonding effect of the film materials.

[0123] 2. By precisely positioning and controlling the location of the film material within the bonding container, high-precision alignment of the film material throughout the bonding process is ensured, thereby improving the accuracy and consistency of impact resistance testing. First, by obtaining the midpoint of the long side of the inner bottom surface and drawing an bonding baseline, the bottom surface is divided into two areas. This provides a clear reference framework for the precise placement of subsequent materials, avoiding deviations in material position during bonding and ensuring that the material's alignment with the bonding baseline is accurate. Second, a pick-up suction cup is used to move the standard material above the bonding container, and by adjusting the position of the standard material so that its connection centerline is parallel to the bonding baseline, this precise control step ensures that each piece of film material is positioned strictly according to design requirements during bonding, avoiding uneven bonding and structural inconsistencies caused by material offset or misalignment. Furthermore, controlling the pick-up suction cup to move the standard material above the bonding container, rather than directly controlling the pick-up suction cup to place the standard material into the bonding container, avoids the pick-up... The suction cups are used to directly place the film material into the bonding container. The temperature generated by the heating within the container affects the suction cups, causing them to deform and impacting their gripping performance. Simultaneously, by controlling the maximum allowable distance between the standard material and its short side, and by controlling the order in which the two suction cups release the standard material, when the standard material needs to land in area one, the suction cup closest to the first short side releases the material first, followed by the suction cup closest to the second short side. This causes the standard material to move closer to the first short side as it falls into the bonding container. Similarly, when the standard material needs to land in area two, the suction cup closest to the second short side releases the material first, followed by the suction cup closest to the first short side. This method ensures the standard material lands as close as possible to its target position within the bonding container, thus guaranteeing accurate placement.

[0124] 3. By using a visual inspection module and precise overlap and centering judgment technology, the film materials during the bonding process are accurately aligned, improving the consistency and accuracy of the test materials. First, the visual inspection module monitors the standard materials inside the bonding container in real time, quickly identifying whether the materials are completely within the container. By judging the overlap of the materials, it ensures that the relative positions of the two standard materials within the bonding container meet the requirements, avoiding material misalignment or overlap caused by positional deviations and ensuring the uniformity of the bonding area. If the material is not completely inside the container, the system will automatically issue a prompt, ensuring timely manual adjustment. Further overlap judgment, especially by checking whether the overlapping area covers the bonding baseline, ensures the accuracy of material mating and avoids misalignment caused by… Incomplete overlap or incorrect positioning can lead to bonding failures. By centering the overlapping area, the positioning accuracy of the standard material is further improved, ensuring the alignment of the material during bonding. Obtaining the distance between the centering judgment line and the intersection of the overlapping area can effectively measure and correct the centering of the material. By calculating the difference between the first and second centering distances and comparing it with the set centering threshold, efficient monitoring of material position deviation can be achieved. Once the error exceeds the tolerance range, the system will prompt manual adjustment. This process effectively avoids inconsistencies caused by minor position deviations. Through these precise positioning and control measures, accurate bonding of the material is ensured, greatly improving the bonding quality and guaranteeing the accuracy and reliability of subsequent impact resistance tests.

[0125] 4. By controlling the heating area within the heating container to heat the overlapping areas, the adhesive portion of the standard material melts and firmly bonds, effectively avoiding uneven bonding caused by insufficient local heating, and ensuring the integrity and strength of the bonded 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 material to ensure the correct position for subsequent material bonding, avoiding material misalignment and ensuring the accuracy and uniformity of each bonding. Furthermore, bonding individual film materials together effectively improves the efficiency of impact testing. Traditional impact testing of individual films usually requires each film to be clamped and adjusted independently, which is not only time-consuming but also easily affected by the operator, resulting in a lack of standardization in the testing process. By bonding the film materials into a long strip, multiple areas can be impact tested under roller clamping and adjustment, greatly improving the continuity and automation of the test.

[0126] 5. Using four cylindrical rollers to form two sets of rollers provides a uniform and stable material clamping effect. Each set of rollers consists of two rollers, one above the other, which are in contact with each other, ensuring that the test material is evenly clamped between the two rollers. This avoids material displacement or instability that may occur with a single roller. This design enhances the accuracy of material fixation and ensures the stability of the material during subsequent impact tests. Secondly, by defining the two roller sets as Roller Set 1 and Roller Set 2 respectively, and ensuring that the axis of the bottom roller in each set remains on the same horizontal plane, consistency and symmetry in the position of the roller sets are achieved. This reduces errors caused by asymmetry in the roller sets during testing, thereby improving the accuracy of the material fixation process. Furthermore, by calculating the difference between the standard long side and the standard value and setting a standard distance, distance control can be performed before the material enters the roller group, ensuring that the size of the test material is consistent with the set standard value. This 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 precisely controlled, it can ensure that the joint of the material remains stable and will not shift or misalign when fed into the roller fixing module, thereby improving the accuracy of the feeding process. In particular, by controlling the synchronous rotation of the two sets of rollers, the test material can be smoothly conveyed. 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, thereby avoiding experimental errors caused by improper operation.

[0127] 6. 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 material in real time and accurately. This design ensures that tension detection covers both ends of the material and guarantees 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 in pressure values ​​measured by the two pressure sensors and comparing it with a 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 human judgment and provides a quantitative and operable standard for evaluating the tension state of the material. For abnormal tension, the design adjusts the position of the roller group to restore tension. The optimization and adjustment are as follows: 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 assembly during tension adjustment is targeted rather than blind, thus enhancing the accuracy and effectiveness of the adjustment process. In particular, by comparing the pressure value differences, the tight edge and its corresponding tight end are accurately located, ensuring that the adjustment process can specifically solve the problem of uneven tension and effectively avoid test instability or inaccuracy caused by uneven tension. In addition, by monitoring the pressure changes detected by the pressure sensor in real time throughout the tension adjustment process, it is ensured 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 optimal tension state of the test material, and thus providing more stable and reliable test conditions for subsequent impact resistance testing. Attached Figure Description

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

[0129] Figure 2 This is a schematic diagram of the bonding baseline of the present invention.

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

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

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

[0133] Figure 6 This is a schematic diagram of the adhesive container of the present invention.

[0134] Figure 7 This is a schematic diagram of the initial state of the pickup suction cup of the present invention.

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

[0136] Figure 9 This is a schematic diagram of one structure of the 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-Area 1, 7-Short side 1, 8-Bonding baseline, 9-Midpoint of the two long sides of the inner bottom surface, 10-Area 2, 11-Short side 2, 12-Base surface, 13-The part of the overlapping area covered by the inner bottom surface, 14-Midpoint of the bonding baseline, 15-Centering judgment line, 16-Two intersection points, 17-Roller fixing module. 18-Rotating shaft; 19-Pressure sensor in tension detection module; 20-Electric telescopic rod; 21-Roller group 1; 22-Roller group 2; 23-Adhesive container; 24-Standard material; 25-Guide structure; 26-Seam area formed by adhesion; 27-Pickup suction cup; 28-Air path; 29-Soft airbag; 30-Gravity block; 31-Suction cup 1; 32-Suction cup 2; 33-Air chamber; 34-One-way valve; 35-Exhaust port. Detailed Implementation

[0138] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0139] Example 1: A testing method for detecting the impact resistance of materials, comprising:

[0140] The thin film materials requiring impact resistance testing are bonded together to form a continuous chain of test materials, including:

[0141] Use the two suction structures in the pick-up suction cup to pick up both ends of each sheet of film material;

[0142] The film material is moved to a position above the bonding location; the bonding location is the position in the bonding container where the film material is placed.

[0143] One of the two suction structures is controlled to release the film material first. After the film material detaches from the suction structure and falls, the other suction structure is controlled to release the film material, so that the film material moves towards the target position on its own during the falling process and eventually falls to the target position. The target position is the position near the first short side or the position near the second short side as described later.

[0144] The film material at the bonding site is bonded together to form a continuous chain of test material;

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

[0146] Each pair of adjacent seam areas is stretched and fixed to flatten the test material between the seam areas.

[0147] The impact resistance of the flattened test material was tested.

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

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

[0150] The air chamber is connected to a vacuum pump via an air passage;

[0151] A gravity block is connected to the bottom of the soft airbag;

[0152] The air chamber includes an exhaust port and a one-way valve that allows the soft air bag to flow into the air chamber;

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

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

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

[0156] The test material is fed into the roller fixing module for flattening and fixing;

[0157] The test material located in the roller fixing module is referred to as the test material;

[0158] The tension detection module is used to detect the tension of the test material to determine whether the tension is normal.

[0159] If the tension is abnormal, the tension of the test material can be adjusted by using the roller fixing module to bring the tension back to normal.

[0160] If the tension is normal, the impact resistance of the test material will be tested, specifically including:

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

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

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

[0164] S4. On the impact baseline, obtain a point located above the impact point and at a distance equal to the impact height from the impact point, and denote it as the impact release point.

[0165] S5. Use a solid ball to release 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 of the test material; the analysis of the impact resistance of the test material is based on existing technology, such as the falling ball impact test method disclosed in ASTM D1709 standard, which quantitatively analyzes the impact resistance of the material by observing the deformation marks produced by the impact of a solid ball on the thin film material.

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

[0169] Repeat steps S1-S8 until each piece of thin film material that makes up the test material has been impacted once, thus completing the impact test of the test material.

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

[0171] The film material is bonded using an adhesive module;

[0172] The bonding module includes: a bonding container, a guiding structure, and a pickup suction cup; the pickup suction cup is as follows: Figure 7As shown, when standard material needs to be sucked up, air is drawn through the air passage. The second suction cup, connected to one branch of the air passage, creates negative pressure to suck up the standard material. Meanwhile, the one-way valve in the air chamber, connected to another branch of the air passage, opens, connecting to the soft airbag. Simultaneously, the soft airbag contracts and rises, creating negative pressure in the first suction cup connected to the soft airbag to suck up the standard material. When the standard material needs to be released, the air drawing stops. At this point, the negative pressure in the second suction cup disappears, and the standard material detaches directly from the second suction cup. Simultaneously, the soft airbag connected to the first suction cup is extended by the falling gravity block, causing the one-way valve in the air chamber to open. When the valve is closed, air is drawn into the soft airbag only through the exhaust port, which simultaneously draws air into suction cup number one. This causes suction cup number one to maintain a negative pressure for a period of time even after the negative pressure in suction cup number two disappears. During this time, the standard material will not detach from suction cup number one. When the gravity block reaches its lowest point, the soft airbag stops extending. At this point, the suction effect of the soft airbag on suction cup number one disappears, the negative pressure in suction cup number one disappears, and suction cup number one releases the standard material. Thus, when the pick-up suction cup picks up and then releases the standard material, the standard material will first detach from suction cup number two, and then detach from suction cup number one after a period of time.

[0173] Reference Figure 6 The adhesive container is an open container with only one bottom surface;

[0174] The guide structure is located on the inner wall of the adhesive container;

[0175] Reference Figure 1 The inner surface of the adhesive container that serves as the bottom surface of the container is denoted as the inner bottom surface.

[0176] Obtain the two long sides and two short sides of the inner bottom surface, and obtain the length of any long side, denoted as the long side length; obtain the length of any short side, denoted as the short side length.

[0177] A heating zone is set on the bottom surface of the bonding container, and the width of the heating zone is recorded as the standard value.

[0178] Calculate the sum of the length of the longer side and the standard value, and take half of the result as the standard value of the longer side;

[0179] The length equal to the length of the shorter side is denoted as the standard length of the shorter side;

[0180] The film material to be tested for impact resistance is cut into rectangles, with the length of the cut rectangle equal to the standard long side and the width equal to the standard short side. The cut film material is recorded as the standard material. By bonding thin film materials to form standard materials, combined with bonding modules and precise dimensional design, the consistency and accuracy of thin film materials in impact resistance testing can be significantly improved. Firstly, the precise design of the bonding container and guide structure ensures accurate alignment and positioning of the thin film materials during bonding, reducing the possibility of unevenness and displacement in subsequent bonding processes. Secondly, by setting heating zones and controlling standardized heating, temperature and pressure during bonding are effectively controlled, ensuring uniformity and reliability. By precisely calculating the long and short side standards and cutting the thin film materials, the dimensions of each standard material strictly conform to testing requirements, avoiding inconsistencies caused by material size differences and further improving the comparability and accuracy of the tests. Furthermore, this process allows the thin film materials to conform to the dimensions of the bonding container, enabling better fixation and constraint of the thin film materials during subsequent bonding processes, thereby improving the bonding effect.

[0181] The method of bonding the thin film material to be tested for impact resistance to form a continuous chain of test materials also includes:

[0182] Reference Figure 2 Find the midpoints of the two long sides of the inner bottom surface and connect them. Record the resulting line as the bonding baseline.

[0183] The bonding baseline divides the inner bottom surface into two rectangular areas, one of which is designated as area one and the other as area two.

[0184] The short side of the inner bottom surface located in region 1 is designated as short side 1, and the short side located in region 2 is designated as short side 2.

[0185] Reference Figure 3 Draw a plane that passes through the bonding reference line and is 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 draw a line connecting them. This line is recorded as the connecting center line of the standard material.

[0187] Set the maximum allowable spacing;

[0188] If the current item is the first standard material, reverse the pick-up suction cup so that the second pick-up suction cup is positioned before the first one. (Refer to...) Figure 8The first standard material is picked up using a pick-up suction cup and moved to the top of the bonding container. The position of the standard material is adjusted so that the connection centerline of the standard material is parallel to the bonding baseline, and the distance between the vertical downward projection of the connection centerline of the standard material onto the inner bottom surface and the first short side is less than or equal to the maximum allowable distance. The position of the standard material is kept unchanged, the air extraction is stopped, and the second suction cup releases the standard material first, followed by the first suction cup. As the standard material falls into the bonding container, it moves closer to the first short side. In this invention, after the air extraction is stopped, the air path in the pick-up suction cup is connected to the outside atmosphere.

[0189] S9. If the current material is a standard sheet after the first one, the pick-up suction cup will return to its initial state, placing suction cup number one before suction cup number two. (Refer to...) Figure 7 Use the pick-up suction cup to pick up the standard material and move it above the bonding container. Adjust the position of the standard material so that its connection centerline is parallel to the bonding baseline, and the distance between the vertical downward projection of the standard material's connection centerline onto the inner bottom surface and the second short side is less than or equal to the maximum allowable distance. Keep the position of the standard material unchanged, stop the suction, and release the standard material from the second suction cup first, followed by the first suction cup. As the standard material falls into the bonding container, it moves closer to the second short side, and its falling motion into the container is as follows: Figure 6As shown, by precisely positioning and controlling the position of the film material in the bonding container, high-precision alignment of the film material is ensured throughout the bonding process, thereby improving the accuracy and consistency of the impact resistance test. First, by obtaining the midpoint of the long side of the inner bottom surface and drawing the bonding baseline, the bottom surface is divided into two areas. This provides a clear reference framework for the subsequent precise placement of materials, avoiding deviations in material position during bonding and ensuring that the material's alignment with the bonding baseline is accurate. Second, a pick-up suction cup is used to move the standard material above the bonding container, and by adjusting the position of the standard material so that its connection centerline is parallel to the bonding baseline, this precise control step ensures that each piece of film material is positioned strictly according to the design requirements during bonding, avoiding uneven bonding and structural inconsistencies caused by material offset or misalignment. Furthermore, controlling the pick-up suction cup to move the standard material above the bonding container, rather than directly placing the standard material into the bonding container, avoids the pick-up suction cup being directly placed into the bonding container, thus preventing the pick-up suction cup from being... The temperature generated by heating in the bonding container causes the pick-up suction cup to deform due to heat, affecting its picking effect. Simultaneously, by controlling the maximum allowable distance between the standard material and the short side, and controlling the order in which the two suction cups release the standard material, when the standard material needs to land in area one, the pick-up suction cup is reversed. This brings the second suction cup closer to the first short side, causing the second suction cup, which is closer to the first short side, to release the standard material first, followed by the first suction cup, which is closer to the second short side. This ensures the standard material is placed in the correct area. During the process of falling into the bonding container, the material moves towards the first short side and falls into area one. When the standard material needs to fall into area two, the pick-up suction cups are controlled to return to their initial state. This causes suction cup two, which is closer to the second short side, to release the standard material first, followed by suction cup one, which is closer to the first short side. This allows the standard material to move towards the second short side and fall into area two during the process of falling into the bonding container. This method can maximize the chances of the standard material falling into the target position in the bonding container, thus ensuring accurate placement of the material.

[0190] S10. After two standard materials are placed in the bonding container, obtain the status 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, then an overlap judgment is made.

[0192] S12. If a standard material is not completely inside the bonding container, a manual adjustment will be prompted.

[0193] The overlap determination includes:

[0194] S13. Obtain the overlapping portion of two standard materials inside the container and record this portion as the overlapping area.

[0195] S14. If the overlapping area does not include the bonding baseline on the inner bottom surface, manual adjustment is required.

[0196] S15. If the overlapping area covers the part of the inner bottom surface that includes the bonding baseline, then centering is determined.

[0197] Reference Figure 4 The centering determination includes:

[0198] S16. Obtain the midpoint of the bonding reference line, and draw a perpendicular line through the midpoint that is perpendicular to the bonding reference line and located on the same horizontal plane, which is called the centering judgment line.

[0199] S17. Obtain the two intersection points of the part covered by the centering judgment line and the overlapping area on the inner bottom surface, and 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.

[0200] S18. Set the centering threshold for determining whether overlapping areas are centered;

[0201] S19. Calculate the difference between the centering distance of No. 1 and the centering distance of No. 2 and compare it with the centering threshold.

[0202] S20. If the difference between the centering distance of No. 1 and the centering distance of No. 2 is greater than the centering threshold, a manual adjustment is prompted.

[0203] S21. If the difference between the centering distance of the first and second materials is less than or equal to the centering threshold, bonding is performed directly. By using a visual inspection module and precise overlap and centering judgment technology, the film materials are ensured to be precisely aligned during the bonding process, improving the consistency and accuracy of the test materials. First, the visual inspection module monitors the standard materials inside the bonding container in real time, quickly identifying whether the materials are completely within the container. By judging the overlap of the materials, it ensures that the relative positions of the two standard materials within the bonding container meet the requirements, avoiding material misalignment or overlap due to positional deviation, and ensuring the uniformity of the bonding area. If the material is not completely inside the container, the system will automatically issue a prompt, ensuring timely manual adjustment. Further overlap judgment, especially by checking whether the overlapping area covers the bonding baseline, is performed. This ensures the accuracy of material docking and avoids bonding errors caused by incomplete overlap or incorrect positioning. By centering the overlapping area, the positioning accuracy of the standard material is further improved, ensuring the alignment of the material during bonding. Obtaining the distance between the centering judgment line and the intersection of the overlapping area can effectively measure and correct the centering of the material. By calculating the difference between the first and second centering distances and comparing it with the set centering threshold, efficient monitoring of material position deviation can be achieved. Once the error exceeds the tolerance range, the system will prompt manual adjustment. This process effectively avoids inconsistencies caused by minor position deviations. Through these precise positioning and control measures, accurate bonding of materials is ensured, greatly improving the bonding quality and guaranteeing the accuracy and reliability of subsequent impact resistance tests.

[0204] S22. The direct bonding process specifically involves controlling the heating area inside the bonding container to heat the overlapping areas of the standard materials so that they are melted and bonded.

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

[0206] S24. After bonding is completed, pull the standard material in the direction from the center point of area 2 to the center point of area 1.

[0207] S25. Stop pulling the standard material 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.

[0208] Repeat steps S9-S25 until all standard materials are bonded, completing the bonding process for the film material to form the test material. By controlling the heating area within the heating container to heat the overlapping area, the bonded portions of the standard materials melt and firmly bond, effectively avoiding uneven bonding caused by insufficient local heating and ensuring the integrity and strength of the bonded area. During the bonding process, the system uses half the standard value as the bonding distance and precisely controls the pulling of the standard material to ensure the correct position for subsequent material bonding, avoiding material misalignment and ensuring the accuracy and uniformity of each bonding. Furthermore, bonding individual film materials together effectively improves the efficiency of impact testing. Traditional impact testing of individual films usually requires each film to be clamped and adjusted independently, which is not only time-consuming but also easily affected by the operator, resulting in a lack of standardization in the testing process. By bonding the film materials into a long strip, multiple areas can be impact tested under roller clamping and adjustment, greatly improving the continuity and automation of the test.

[0209] The step of feeding the test material into the roller fixing module for flattening and fixing includes:

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

[0211] The two roller groups are designated as roller group one and roller group two, respectively.

[0212] Obtain the roller that is below the other roller in each of the two roller groups in roller group 1 and roller group 2, and record them as the bottom roller of each roller group.

[0213] Obtain the axes of the bottom rollers of roller group 1 and roller group 2 respectively, and denote them as bottom axis 1 and bottom axis 2 respectively;

[0214] When controlling the movement of roller group 1 and roller group 2, the bottom axis of bottom group 1 and bottom axis of bottom group 2 remain on the same horizontal plane;

[0215] Calculate the difference between the standard value of the longer side and twice the standard value, and record the result as the standard distance;

[0216] The distance between roller group one and roller group two shall be less than or equal to the standard distance;

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

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

[0219] The area between the starting edge and the first seam area on the test material is designated as the first test area.

[0220] The starting edge is passed between two rollers in the second roller group, and the second roller group is rotated to move the test material toward the first roller group.

[0221] When the starting edge of the test material contacts the first roller group, pass the starting edge of the test material 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 roller group one, and the first seam area does not pass through roller group two, the test material between roller groups one and two constitutes the first detection area. At this point, roller groups one and two are stopped rotating, completing the feeding of the test material into the roller fixing module. Using four cylindrical rollers to form two roller groups provides a uniform and stable material clamping effect. Each roller group consists of two rollers, one above the other, in contact with each other, ensuring that the test material is evenly clamped between the two rollers. This avoids material displacement or positional instability that might occur with a single roller, enhancing the accuracy of material fixing and ensuring material stability during subsequent impact tests. Secondly, by defining the two roller groups as roller group one and roller group two respectively, and ensuring that the axis of the bottom roller in each roller group remains on the same horizontal plane, consistency and symmetry in the position of the roller groups are achieved, thereby reducing errors caused by roller group asymmetry during testing and improving the accuracy of the material fixing process. Furthermore… By calculating the difference between the standard long side and the standard value and setting a standard distance, distance control can be performed before the material enters the roller group, ensuring that the size of the test material is consistent with the set standard value. This 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 precisely controlled, it can ensure that the joint of the material remains stable and will not shift or misalign when fed into the roller fixing module, thereby improving the accuracy of the feeding process. In particular, by controlling the synchronous rotation of the two sets of rollers, the test material can be smoothly conveyed. 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 method of using a tension detection module to detect the tension of the test material includes:

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

[0225] Move the tension detection module under the material being tested, and make the connection between the two pressure sensors in the tension detection module pass through the impact point of the material being tested.

[0226] The two pressure sensors in the tension detection module are in contact with two edges of the material being tested, respectively; (Refer to...) Figure 5 The electric telescopic rod is controlled to extend and retract, so that the pressure sensor comes into contact with the material being tested.

[0227] After the test material comes into contact with the pressure sensor, the pressure value detected by each pressure sensor is obtained and recorded as pressure value number one and pressure value number two respectively;

[0228] Set the maximum difference threshold for determining whether pressure values ​​are approximately equal, denoted as the pressure threshold.

[0229] Calculate the difference between pressure value 1 and pressure value 2, and compare the absolute value of the difference with the pressure threshold.

[0230] If the absolute value of the difference is greater than the pressure threshold, then the tension is determined to be abnormal;

[0231] If the absolute value of the difference is less than or equal to the pressure threshold, then the tension is considered normal.

[0232] If the tension is abnormal, the tension of the test material is adjusted by using the roller fixing module to restore normal tension, including:

[0233] Obtain the midpoints of the axes of the two rollers in roller group 1, and draw a straight line through these two midpoints, which is denoted as the rotation baseline;

[0234] Compare pressure value #1 and pressure value #2;

[0235] If pressure value 1 is greater than pressure value 2, then obtain the pressure sensor corresponding to pressure value 1, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge.

[0236] If pressure value 2 is greater than pressure value 1, then obtain the pressure sensor corresponding to pressure value 2, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge.

[0237] The end that is closer to the tight side among the two ends of the first roller group is denoted as the tight end;

[0238] Control such as Figure 5 The rotating shaft shown rotates, causing the first roller group to rotate around the rotation baseline, causing the tight end to move towards the second roller group;

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

[0240] When the absolute value of the difference between the pressure values ​​detected by the pressure sensors in the tension detection module is less than or equal to the pressure threshold, the first roller group is stopped rotating, completing the tension adjustment. 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 material in real time and accurately. This design ensures that tension detection covers both ends of the material and guarantees 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 in 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 human judgment and provides a quantitative and operable standard to assess the tension state of the material. For abnormal tension situations, the design adjusts the position of the roller group to achieve tension control. The optimization and adjustment process involves several key aspects. Specifically, by obtaining the midpoint of the roller axis and setting a rotation baseline, the tension adjustment process has a clear physical basis. This ensures that the movement of the roller assembly during tension adjustment is targeted, rather than blind, enhancing the accuracy and effectiveness of the adjustment process. In particular, by comparing pressure value differences, the tight edge and its corresponding tight end are precisely located, ensuring that the adjustment process can specifically address the problem of uneven tension and effectively avoid instability or inaccuracy in testing caused by uneven tension. Furthermore, throughout the entire tension adjustment process, real-time monitoring of pressure changes detected by the pressure sensor ensures that each step of the adjustment operation receives sufficient feedback, avoiding over-adjustment or under-adjustment. This makes tension control more precise and controllable, guaranteeing the optimal tension state of the test material and providing more stable and reliable testing conditions for subsequent impact resistance performance testing.

[0241] The control roller fixing module rotates to replace the detection material, including:

[0242] The direction from roller group 2 to roller group 1 is denoted as the first direction, and the opposite direction of the first direction is denoted as the second direction.

[0243] Get the seam area that is closest to the second roller group and record it as the first adjacent seam area;

[0244] The joint area adjacent to the first adjacent joint area is obtained in the second direction and recorded as the second adjacent joint area; if there is no joint area adjacent to the first adjacent joint area in the second direction, the end edge of the test material is taken as the second adjacent joint area.

[0245] The portion of test material between the first adjacent seam area and the second adjacent seam area is designated as the next test 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 roller group 1 and the second adjacent seam area does not pass through roller group 2, and the test material between roller group 1 and roller group 2 is the next test area, control roller group 1 and roller group 2 to stop rotating to complete the replacement of test material.

[0248] Example 2: Refer to Figure 9 Unlike the pickup suction cup in Embodiment 1, the method of using two suction structures in the pickup suction cup to pick up both ends of each sheet of film material includes:

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

[0250] One suction cup is connected to the first air pump through an air pipe, and the second suction cup is connected to the second air pump through an air pipe.

[0251] The No. 1 and No. 2 air pumps are controlled independently.

[0252] When suction cups 1 and 2 pick up the film material and move it above the bonding position, the first or second suction pump can be stopped as needed to detach the film material from suction cups 1 or 2.

[0253] Once the film material detaches from one suction cup and falls, the pump connected to the other suction cup stops pumping air, causing the film material to detach from the other suction cup.

[0254] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0255] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for testing the impact resistance of materials, characterized in that, include: The thin film materials requiring impact resistance testing are bonded together to form a continuous chain of test materials, including: Using two suction structures in the pick-up suction cup, each film material is picked up from both ends, specifically including: The two suction structures of the pickup suction cup include a first suction cup and a second suction cup; The first suction cup is connected to one end of a soft airbag, and the other end of the soft airbag is connected to the air chamber. The air chamber is connected to a vacuum pump via an air passage; A gravity block is connected to the bottom of the soft airbag; The air chamber includes an exhaust port and a one-way valve that allows the soft air bag to flow into the air chamber; The second suction cup is connected to the air pump via an air passage; The air passage includes two branches, one of which is connected to the air chamber and the other is connected to the second suction cup; The film material is moved above the bonding location; One of the two suction structures is controlled to release the film material first. After the film material detaches from the suction structure and falls, the other suction structure is controlled to release the film material, so that the film material moves towards the target position on its own during the falling process and eventually falls to the target position. The film material at the bonding site is bonded together to form a continuous chain of test material; Each adhesive area formed by the bonding treatment on the test material is recorded as a seam area; Each pair of adjacent seam areas is stretched and fixed to flatten the test material between the seam areas. The impact resistance of the flattened test material was tested.

2. The method for testing the impact resistance of materials according to claim 1, characterized in that, The impact resistance test of the flattened test material includes: The test material is fed into the roller fixing module for flattening and fixing; The test material located in the roller fixing module is referred to as the test material; The tension detection module is used to detect the tension of the test material to determine whether the tension is normal. If the tension is abnormal, the tension of the test material can be adjusted by using the roller fixing module to bring the tension back to normal. If the tension is normal, the impact resistance of the test material will be tested, specifically including: S1. Obtain the center point of the upper surface of the test material and record it as the impact point; S2. Draw a straight line perpendicular to the horizontal plane through the point of impact, and denote this line as the impact baseline. S3. Obtain the impact height required for impact resistance performance testing and record it as the impact height. S4. On the impact baseline, obtain a point located above the impact point and at a distance equal to the impact height from the impact point, and denote it as the impact release point. S5. Use a solid ball to release 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 testing material; Repeat steps S1-S8 until each piece of thin film material that makes up the test material has been impacted once, thus completing the impact test of the test material.

3. The method for testing the impact resistance of materials according to claim 1, characterized in that, The process of bonding the thin film material to be tested for impact resistance to form a continuous chain of test materials specifically includes: The film material is bonded using an adhesive module; The bonding module includes: a bonding container, a guiding structure, and a pickup suction cup; The bonding container is an open container with only one bottom surface; The guide structure is located on the inner wall of the adhesive container; The inner surface of the bonding container that serves as the bottom surface of the container is denoted 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 long side, denoted as the long side length; obtain the length of any short side, denoted as the short side length. A heating zone is set on the bottom surface of the bonding container, and the width of the heating zone is recorded as the standard value. Calculate the sum of the length of the longer side and the standard value, and take half of the result as the standard value of the longer side; The length equal to the length of the shorter side is denoted as the standard length of the shorter side; The film material to be tested for impact resistance is cut into a rectangle, and the length of the cut rectangular film material is equal to the standard long side and the width is equal to the standard short side. The cut film material is recorded as the standard material. Find the midpoints of the two long sides of the inner bottom surface and connect them. Record the resulting line as the bonding baseline. The bonding baseline divides the inner bottom surface into two rectangular areas, one of which is designated as area one and the other as area two. The short side of the inner bottom surface located in region 1 is designated as short side 1, and the short side located in region 2 is designated as short side 2. Draw a plane that passes through the bonding reference line and is perpendicular to the horizontal plane, and denote it as the reference plane; For each standard material, obtain the midpoints of its two long sides and draw a line connecting them. This line is recorded as the connecting center line of the standard material. Set the maximum allowable spacing; If the current standard material is the first sheet, control the pick-up suction cup to reverse so that the second pick-up suction cup is in front of the first pick-up suction cup. Use the pick-up suction cup to pick up the first standard material and move it above the bonding container. Adjust the position of the standard material so that the connection centerline of the standard material is parallel to the bonding baseline, and the distance between the projection line segment of the vertical downward projection of the connection centerline of the standard material on the inner bottom surface and the first short side is less than or equal to the maximum allowable distance. Keep the position of the standard material unchanged and stop the air extraction. S9. If the current standard material is after the first sheet, the control pick-up suction cup will return to its initial state, so that the first pick-up suction cup is in front of the second pick-up suction cup. Use the pick-up suction cup to pick up the standard material and move 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 make the distance between the projection line segment of the vertical downward projection of the connection center line of the standard material on the inner bottom surface and the second short side ≤ the maximum allowable distance. Keep the position of the standard material unchanged and stop the air extraction. S10. After two standard materials are placed in the bonding container, obtain the status 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, then an overlap judgment is made. S12. If a standard material is not completely inside the bonding container, a manual adjustment will be prompted.

4. The method for testing the impact resistance of materials according to claim 3, characterized in that, The overlap determination includes: S13. Obtain the overlapping portion of two standard materials inside the container and record this portion as the overlapping area. S14. If the overlapping area does not include the bonding baseline on the inner bottom surface, manual adjustment is required. S15. If the overlapping area covers the part of the inner bottom surface that includes the bonding baseline, then centering judgment is performed. The centering determination includes: S16. Obtain the midpoint of the bonding reference line, and draw a perpendicular line through the midpoint that is perpendicular to the bonding reference line and located on the same horizontal plane, which is called the centering judgment line. S17. Obtain the two intersection points of the part covered by the centering judgment line and the overlapping area on the inner bottom surface, and 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. S18. Set the centering threshold for determining whether overlapping areas are centered; S19. Calculate the difference between the centering distance of No. 1 and the centering distance of No. 2 and compare it with the centering threshold. S20. If the difference between the centering distance of No. 1 and the centering distance of No. 2 is greater than the centering threshold, a manual adjustment is prompted. S21. If the difference between the centering distance of No. 1 and the centering distance of No. 2 is less than or equal to the centering threshold, then the bonding is performed directly. S22. The direct bonding process specifically involves controlling the heating area inside the bonding container to heat the overlapping areas of the standard materials so that they are 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 area 2 to the center point of area 1. S25. Stop pulling the standard material 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. Repeat steps S9-S25 until all standard materials have been bonded, completing the bonding process for the film material to form the test material.

5. The method for testing the impact resistance of materials according to claim 2, characterized in that, The step of feeding the test material into the roller fixing module for flattening and fixing includes: The roller fixing module includes four cylindrical rollers, with each pair of rollers forming a roller group. The two rollers in each roller group are arranged vertically, parallel to each other and in contact with each other. At the same time, the axes of the two rollers in each roller group are located on the same plane perpendicular to the horizontal plane. The two roller groups are designated as roller group one and roller group two, respectively. Obtain the roller that is below the other roller in each of the two roller groups in roller group 1 and roller group 2, and record them as the bottom roller of each roller group. Obtain the axes of the bottom rollers of roller group 1 and roller group 2 respectively, and denote them as bottom axis 1 and bottom axis 2 respectively; When controlling the movement of roller group 1 and roller group 2, the bottom axis of bottom group 1 and bottom axis of bottom group 2 remain on the same horizontal plane; Calculate the difference between the standard value of the longer side and twice the standard value, and record the result as the standard distance; The distance between roller group one and roller group two shall be less than or equal to the standard distance; Among the four sides of the test material, select the two shorter sides, and arbitrarily choose one side as the starting side and the other side as the ending side. The seam area closest to the starting edge is designated as the first seam area; The area between the starting edge and the first seam area on the test material is designated as the first test area. The starting edge is passed between two rollers in the second roller group, and the second roller group is rotated to move the test material toward the first roller group. When the starting edge of the test material contacts the first roller group, pass the starting edge of the test material 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 edge of the test material passes through roller group one, and the first seam area does not pass through roller group two, and the test material between roller group one and roller group two is the first detection area, control roller group one and roller group two to stop rotating, thus completing the feeding of the test material into the roller fixing module.

6. The method for testing the impact resistance of materials according to claim 2, characterized in that, The method of using a tension detection module to detect the tension of the test material includes: The tension detection module includes two pressure sensors, which are located on a horizontal line parallel to the rollers of the second roller group. Move the tension detection module under the material being tested, and make the connection between the two pressure sensors in the tension detection module pass through the impact point of the material being tested. The two pressure sensors in the tension detection module are in contact with the two edges of the material being tested, respectively. After the test material comes into contact with the pressure sensor, the pressure value detected by each pressure sensor is obtained and recorded as pressure value number one and pressure value number two respectively; Set the maximum difference threshold for determining whether pressure values ​​are approximately equal, denoted as the pressure threshold. Calculate the difference between pressure value 1 and pressure value 2, and compare the absolute value of the difference with the pressure threshold. If the absolute value of the difference is greater than the pressure threshold, then the tension is determined to be abnormal; If the absolute value of the difference is less than or equal to the pressure threshold, then the tension is considered normal.

7. A method for testing the impact resistance of materials according to claim 6, characterized in that, If the tension is abnormal, the tension of the test material is adjusted by using the roller fixing module to restore normal tension, including: Obtain the midpoints of the axes of the two rollers in roller group one, and draw a straight line through these two midpoints, which is denoted as the rotation baseline; Compare pressure value #1 and pressure value #2; If pressure value 1 is greater than pressure value 2, then obtain the pressure sensor corresponding to pressure value 1, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge. If pressure value 2 is greater than pressure value 1, then obtain the pressure sensor corresponding to pressure value 2, and obtain one edge of the detection material in contact with the sensor, which is recorded as the tight edge. The end that is closer to the tight side among the two ends of the first roller group is 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 of approaching the second roller group; During the rotation of the first roller group, the pressure value detected by each pressure sensor in the tension detection module is monitored; When the absolute value of the difference between the pressure values ​​detected by the pressure sensor in the tension detection module is less than or equal to the pressure threshold, the first roller group is controlled to stop rotating, thus completing the tension adjustment.

8. The method for testing the impact resistance of materials according to claim 2, characterized in that, The control roller fixing module rotates to replace the detection material, including: The direction from roller group 2 to roller group 1 is denoted as the first direction, and the opposite direction of the first direction is denoted as the second direction. Get the seam area that is closest to the second roller group and record it as the first adjacent seam area; The joint area adjacent to the first adjacent joint area is obtained in the second direction and recorded as the second adjacent joint area; if there is no joint area adjacent to the first adjacent joint area in the second direction, the end edge of the test material is taken as the second adjacent joint area. The portion of test material between the first adjacent seam area and the second adjacent seam area is designated as the next test 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 roller group 1 and the second adjacent seam area does not pass through roller group 2, and the test material between roller group 1 and roller group 2 is the next test area, control roller group 1 and roller group 2 to stop rotating to complete the replacement of test material.

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