A clamp and testing device for waterborne paint peel performance testing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEICHAO GROUP
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-19
Smart Images
Figure CN224383087U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of test fixture technology, and more specifically, to a fixture and testing device for testing the peel performance of waterproof coatings. Background Technology
[0002] To compare the peel strength of different waterproof coatings in parallel, multiple test strips of the waterproof coatings are usually prepared on the same test substrate to ensure the accuracy and comparability of the test results. As the number of test strips increases, the size of the substrate also increases accordingly, making it difficult to move the substrate. This makes peel testing on large-sized test substrates inconvenient and inefficient.
[0003] Therefore, improving the convenience of peel testing for large-size substrates has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a fixture for testing the peel performance of waterproof coatings, so as to improve the convenience of peel testing on large-size substrates.
[0005] Another object of this application is to provide a testing apparatus having the above-described fixture for testing the peel performance of waterproof coatings.
[0006] To achieve the above objectives, this application provides the following technical solution:
[0007] A fixture for testing the peel performance of waterproof coatings, comprising:
[0008] The base includes a base plate and side plates located on both sides of the base plate. The base plate and the side plates surround to form an installation cavity. A plurality of roller sets for moving test samples are provided in the installation cavity.
[0009] A clamping assembly for clamping the test sample, the clamping assembly being located above the roller assembly, and the clamping assembly including a drive member and two clamping members symmetrically arranged in the mounting cavity, the drive member being used to drive at least one of the clamping members to move toward or away from the other clamping member.
[0010] Optionally, in the fixture for testing the peel performance of waterproof coatings described above, there is a reserved space between the roller group and the base plate, the reserved space is used to place the test sample, and there is a peeling space between two adjacent roller groups, so that the test sample in the reserved space can be peeled off by the peeling space.
[0011] Optionally, in the above-mentioned fixture for testing the peel performance of waterproof coatings, the driving component includes an adjusting screw threadedly connected to the clamping component, and the side plate is provided with an adjusting screw hole that is threadedly engaged with the adjusting screw.
[0012] Optionally, in the fixture described above for testing the peel performance of waterproof coatings, the end of the adjusting screw away from the clamping member is provided with a gripping part that facilitates rotating the adjusting screw.
[0013] Optionally, in the above-mentioned fixture for testing the peel performance of waterproof coatings, the clamping assembly further includes at least two guide components, and the two guide components are respectively located on both sides of the drive member. The guide components are connected to the clamping member and are used to guide the movement of the clamping member.
[0014] Optionally, in the above-mentioned fixture for testing the peel performance of waterproof coatings, the guide assembly includes a guide screw threadedly connected to the clamping member, and the side plate is provided with a guide hole that slides with the guide screw.
[0015] Optionally, in the above-mentioned fixture for testing the peel performance of waterproof coatings, the guide assembly further includes a reset elastic element sleeved on the guide screw, one end of the reset elastic element abutting against the side of the side plate away from the mounting cavity, and the other end of the reset elastic element abutting against the end of the guide screw away from the clamping member.
[0016] Optionally, in the fixture for testing the peel performance of waterproof coatings described above, the roller assembly includes a roller shaft and rollers sleeved on the roller shaft;
[0017] The two ends of the roller shaft are respectively fixed to the two side plates, and the roller is rotatably mounted on the roller shaft; or, the roller is fixed on the roller shaft, and the two ends of the roller shaft are rotatably connected to the two side plates.
[0018] Optionally, in the fixture described above for testing the peel performance of waterproof coatings, a mounting base for mounting on the testing device is provided on the side of the base plate opposite to the mounting cavity.
[0019] A testing apparatus comprising a fixture for testing the peel performance of waterproof coatings as described in any of the preceding claims.
[0020] The fixture for testing the peel performance of waterproof coatings provided in this application has multiple roller sets arranged in the mounting cavity of the base. These roller sets allow for the movement of the large-sized substrate of the test sample. Simultaneously, the driving component of the clamping assembly moves at least one clamping member towards or away from another clamping member, thereby clamping or releasing the large-sized substrate of the test sample. As can be seen from the above example, the fixture for testing the peel performance of waterproof coatings provided in this application can move the large-sized substrate of the test sample using multiple roller sets, solving the problem of inconvenient movement of large-sized substrates. Furthermore, the clamping assembly located above the roller sets clamps the large-sized substrate of the test sample, facilitating peel testing of the test strip on the large-sized substrate, thus improving the convenience of peel testing on large-sized substrates.
[0021] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0023] Figure 1 A front view of the fixture provided in the embodiments of this application;
[0024] Figure 2 A top view of the fixture provided in the embodiments of this application;
[0025] Figure 3 A side view of the fixture provided in an embodiment of this application;
[0026] Figure 4 A front view of a 180° peel test provided for an embodiment of this application;
[0027] Figure 5 A side view of a 180° peel test provided for an embodiment of this application;
[0028] Figure 6 This is a schematic diagram of a 90° peel test provided in an embodiment of this application.
[0029] Among them, 10 is the base, 11 is the bottom plate, 12 is the side plate, 13 is the mounting cavity, 14 is the reserved space, 20 is the roller group, 21 is the peeling space, 22 is the roller shaft, 23 is the roller, 24 is the roller shaft hole, 30 is the clamping assembly, 31 is the driving component, 311 is the adjusting screw, 3111 is the gripping part, 312 is the adjusting screw hole, 32 is the clamping component, 33 is the guide assembly, 331 is the guide screw, 332 is the guide hole, 333 is the reset elastic component, 40 is the mounting base, 50 is the test sample, 51 is the large-size substrate, and 52 is the test strip. Detailed Implementation
[0030] The core of this application is to provide a fixture for testing the peel performance of waterproof coatings, thereby improving the convenience of peel testing on large-size substrates.
[0031] Another key aspect of this application is to provide a testing device having the aforementioned fixture for testing the peel performance of waterproof coatings.
[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] The phenomenon of waterproof coatings detaching from concrete or cement mortar substrates is rampant, posing significant safety hazards and property damage. While the tensile bond strength between the waterproof coating and the substrate can reflect the degree of adhesion to some extent, it cannot completely guarantee that the waterproof layer will not detach. Therefore, it is necessary to test the peel performance of the waterproof coating to the substrate to ensure that the waterproof coating will not detach.
[0034] In actual peel performance tests, it was found that the substrate has a significant impact on the test results. Peel strength test results for the same waterproof coating on different batches of the same type of test substrate showed large deviations. To ensure the accuracy and comparability of test results, multiple test strips of different waterproof coatings need to be prepared on the same test substrate for parallel comparison. However, as the number of test strips increases, the size of the substrate also increases accordingly, making substrate movement difficult. This makes peel testing on large-sized test substrates inconvenient and inefficient.
[0035] Therefore, such as Figure 1As shown in the figure, this application discloses a fixture for testing the peel performance of waterproof coatings, including a base 10 and a clamping assembly 30. Multiple roller sets 20 are used to move the large-sized substrate 51 of the test sample 50, solving the problem of inconvenient movement of the large-sized substrate 51. Simultaneously, the clamping assembly 30 located above the roller sets 20 clamps the large-sized substrate 51 of the test sample 50, facilitating peel testing of the test strip 52 on the large-sized substrate 51, thus improving the convenience of peel testing of the large-sized substrate 51.
[0036] The following will combine Figures 1 to 6 The fixture for testing the peel performance of waterproof coatings disclosed in the embodiments of this application will be explained and described in detail.
[0037] like Figure 1 As shown, the base 10 may include a base plate 11 and side plates 12 located on both sides of the base plate 11. The base plate 11 and the side plates 12 may form a U-shaped mounting cavity 13. Multiple parallel roller sets 20 are arranged within the mounting cavity 13 to move the large-size substrate 51 of the test sample 50, thus solving the problem of inconvenient movement of the large-size substrate 51. Furthermore, the clamping assembly 30 may be located above the roller sets 20 to clamp the test sample 50, thereby facilitating the peel test of the test strip 52 on the large-size substrate 51 and improving the convenience of peel testing of the large-size substrate 51.
[0038] Among them, such as Figure 1 As shown, the clamping assembly 30 may include a drive member 31 and two clamping members 32 symmetrically arranged in the mounting cavity 13. The drive member 31 can drive at least one clamping member 32 to move toward or away from the other clamping member 32, so as to clamp or release the large-size substrate 51 of the test sample 50.
[0039] In some embodiments, one of the two clamping members 32 may be fixed within the mounting cavity 13, while the other may be movably disposed within the mounting cavity 13. Simultaneously, one driving member 31 may be used, and the driving member 31 may drive the movably disposed clamping member 32 to move towards or away from the other fixed clamping member 32, thereby clamping or releasing the large-size substrate 51 of the test sample 50. Alternatively, both clamping members 32 may be movably disposed within the mounting cavity 13, and one driving member 31 may be used, so that the driving member 31 simultaneously drives both clamping members 32 to move towards or away from each other, thereby clamping or releasing the large-size substrate 51 of the test sample 50.
[0040] In some embodiments, such as Figure 1As shown, the two clamping members 32 can be movably disposed in the mounting cavity 13. At the same time, two driving members 31 can be used, and the two driving members 31 can drive the two clamping members 32 to move toward each other or away from each other, so as to clamp or release the large-size substrate 51 of the test sample 50, thereby realizing independent control of the two clamping members 32.
[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, the driving member 31 may include an adjusting screw 311 that is threadedly connected to the clamping member 32. Meanwhile, as... Figure 3 As shown, the side plate 12 has an adjusting screw hole 312 that is threadedly engaged with the adjusting screw 311. Thus, by rotating the adjusting screw 311, the adjusting screw 311 can push or pull the clamping member 32, thereby realizing the movement of the clamping member 32.
[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, to facilitate the rotation of the adjusting screw 311, a gripping part 3111 can be provided at the end of the adjusting screw 311 away from the clamping member 32 to facilitate the rotation of the adjusting screw 311. The gripping part 3111 may include a gripping rod that passes through the radial direction of the adjusting screw 311, so that the adjusting screw 311 can be rotated by holding the gripping rod.
[0043] In some embodiments, such as Figure 2 As shown, the clamping assembly 30 may further include at least two guide assemblies 33, that is, there may be two, three or more guide assemblies 33. When there are two guide assemblies 33, the two guide assemblies 33 may be located on both sides of the drive member 31, and the guide assemblies 33 are connected to the clamping member 32 to guide the movement of the clamping member 32 and ensure the stability of the movement of the clamping member 32.
[0044] In some embodiments, such as Figure 2 As shown, the guide assembly 33 may include a guide screw 331 that is threadedly connected to the clamping member 32. Meanwhile, as... Figure 3 As shown, a guide hole 332 that slides with the guide screw 331 can be provided on the side plate 12 so that when the clamping member 32 moves, the guide screw 331 can slide along the guide hole 332, thereby preventing the clamping member 32 from twisting or shifting and ensuring the stability of the movement of the clamping member 32.
[0045] In some embodiments, such as Figure 2As shown, the guide assembly 33 may further include a reset elastic element 333 sleeved on the guide screw 331, and the end of the guide screw 331 away from the clamping member 32 is provided with an annular abutment portion, so that one end of the reset elastic element 333 can abut against the side plate 12 away from the mounting cavity 13, and the other end of the reset elastic element 333 can abut against the annular abutment portion of the guide screw 331 away from the clamping member 32. Thus, through the elastic force of the reset elastic element 333, the clamping member 32 can clamp the test sample 50 and quickly release the test sample 50, ensuring the stability of the clamping member 32 clamping the test sample 50.
[0046] In some embodiments, such as Figure 1 As shown, there may be a reserved space 14 between the roller group 20 and the base plate 11 for placing the test sample 50, and there is a certain interval between two adjacent roller groups 20 to form a peeling space 21 between two adjacent roller groups 20, so that the test sample 50 in the reserved space 14 can be peeled off by the peeling space 21.
[0047] In some embodiments, such as Figure 2 As shown, the roller assembly 20 may include a roller shaft 22 and rollers 23 sleeved on the roller shaft 22. The rollers 23 may be fixed to the roller shaft 22, and simultaneously... Figure 3 As shown, roller shaft holes 24 can be respectively provided on the two side plates 12, so that the two ends of the roller shaft 22 can be rotatably connected to the roller shaft holes 24, thereby driving the roller 23 to rotate through the rotation of the roller shaft 22. Of course, the two ends of the roller shaft 22 can also be fixed on the two side plates 12 respectively, and the roller 23 can be rotatably mounted on the roller shaft 22.
[0048] In some embodiments, such as Figure 1 and Figure 3 As shown, a mounting base 40 can be provided on the side of the base plate 11 opposite to the mounting cavity 13 to facilitate the mounting of the fixture onto the testing device. The testing device applies a tensile force to the fixture along the direction of the mounting base 40, thereby enabling a peel test on the test sample 50 on the fixture. Optionally, the mounting base 40 may have mounting holes to align with the connection holes of the testing device, facilitating connection and fixation using bolts or other fasteners.
[0049] When a 180° peel test is performed on test sample 50, such as Figure 4 and Figure 5 As shown, the large-size substrate 51 of the test sample 50 can be placed above the roller group 20, and can be moved by the rollers 23 of the roller group 20, so that the test strip 52 to be peeled off on the large-size substrate 51 and the mounting base 40 are on the same axis, as shown. Figure 4As shown, the bonding surfaces of the test strip 52 to be peeled off and the large-size substrate 51 are located on the same axis as the mounting base 40, as shown. Figure 5 As shown, the large-size substrate 51 is clamped and fixed by the two clamping members 32 of the clamping assembly 30, so that the testing device applies axial tensile force to the bonding surface between the test strip 52 to be peeled and the large-size substrate 51, ensuring the accuracy of the peel performance test of the test strip 52. At this time, the test strip 52 on the large-size substrate 51 can be oriented upwards. Figure 4 and Figure 5 Peel off (in the direction of the arrow) to perform a 180° peel test. It should be noted that after completing the 180° peel test of one test strip 52, the two clamping members 32 of the clamping assembly 30 release the large-size substrate 51, and the large-size substrate 51 moves with the help of the rollers 23 of the roller group 20, so that the next test strip 52 to be peeled is on the same axis as the mounting base 40, and the above steps are repeated until all the test strips 52 to be peeled on the large-size substrate 51 have completed the 180° peel test.
[0050] When a 90° peel test is performed on test sample 50, such as Figure 6 As shown, the large-size substrate 51 of the test sample 50 can be placed below the roller group 20, that is, in the reserved space 14 between the roller group 20 and the base plate 11. At this time, the test strip 52 on the large-size substrate 51 can be bent at 90° and pulled out through the peeling space 21 between the rollers 23 of the two adjacent roller groups 20, thereby enabling the test strip 52 on the large-size substrate 51 to face upward ( Figure 6 Peel (in the direction of the arrow) to perform a 90° peel test. It should be noted that when performing a 90° peel test on the test sample 50, a test strip 52 can be provided on the large-size substrate 51, and it must be ensured that the test strip 52 is pulled out from the peeling space 21, which is located on the same axis as the mounting base 40, after being bent at 90°. Figure 6 As shown, this is to ensure the accuracy of the 90° peel performance test of test specimen 52.
[0051] The fixture for testing the peel performance of waterproof coatings disclosed in this application has multiple roller sets 20 arranged in the mounting cavity 13 of the base 10. The large-size substrate 51 of the test sample 50 can be moved by each roller set 20. At the same time, at least one clamping member 32 can be driven by the driving member 31 of the clamping assembly 30 to move toward or away from another clamping member 32, so as to clamp or release the large-size substrate 51 of the test sample 50.
[0052] The fixture for testing the peel performance of waterproof coatings disclosed in this application can move the large-sized substrate 51 of the test sample 50 through multiple roller groups 20, solving the problem of inconvenient movement of the large-sized substrate 51. At the same time, the large-sized substrate 51 of the test sample 50 can be clamped by the clamping component 30 located above the roller group 20, so as to perform peel testing on the test strip 52 on the large-sized substrate 51, improving the convenience of peel testing of the large-sized substrate 51.
[0053] This application discloses a testing device for testing the peel performance of waterproof coatings to a substrate. The testing device may include a clamp, which is the clamp for testing the peel performance of waterproof coatings disclosed in the above embodiments. Therefore, it has all the technical effects of the clamp for testing the peel performance of waterproof coatings described above, and will not be repeated here.
[0054] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather not listed.
[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fixture for testing the peel performance of waterproof coatings, characterized in that, include: The base (10) includes a base plate (11) and side plates (12) located on both sides of the base plate (11). The base plate (11) and the side plates (12) surround and form an installation cavity (13). The installation cavity (13) is provided with a plurality of roller groups (20) for moving the test sample (50). A clamping assembly (30) is used to clamp the test sample (50). The clamping assembly (30) is located above the roller group (20), and the clamping assembly (30) includes a drive member (31) and two clamping members (32) symmetrically arranged in the mounting cavity (13). The drive member (31) is used to drive at least one of the clamping members (32) to move toward or away from the other clamping member (32).
2. The fixture for testing the peel performance of waterproof coatings according to claim 1, characterized in that, There is a reserved space (14) between the roller group (20) and the base plate (11), the reserved space (14) is used to place the test sample (50), and there is a peeling space (21) between two adjacent roller groups (20) so that the test sample (50) in the reserved space (14) can be peeled off by the peeling space (21).
3. The fixture for testing the peel performance of waterproof coatings according to claim 1, characterized in that, The driving component (31) includes an adjusting screw (311) that is threadedly connected to the clamping component (32), and the side plate (12) is provided with an adjusting screw hole (312) that is threadedly engaged with the adjusting screw (311).
4. The fixture for testing the peel performance of waterproof coatings according to claim 3, characterized in that, The end of the adjusting screw (311) away from the clamp (32) is provided with a gripping part (3111) to facilitate rotating the adjusting screw (311).
5. The fixture for testing the peel performance of waterproof coatings according to claim 1, characterized in that, The clamping assembly (30) further includes at least two guide assemblies (33), and the two guide assemblies (33) are respectively located on both sides of the drive member (31). The guide assemblies (33) are connected to the clamping member (32) and are used to guide the movement of the clamping member (32).
6. The fixture for testing the peel performance of waterproof coatings according to claim 5, characterized in that, The guide assembly (33) includes a guide screw (331) that is threadedly connected to the clamping member (32), and the side plate (12) is provided with a guide hole (332) that slides with the guide screw (331).
7. The fixture for testing the peel performance of waterproof coatings according to claim 6, characterized in that, The guide assembly (33) further includes a reset elastic element (333) sleeved on the guide screw (331). One end of the reset elastic element (333) abuts against the side of the side plate (12) away from the mounting cavity (13), and the other end of the reset elastic element (333) abuts against the end of the guide screw (331) away from the clamping member (32).
8. The fixture for testing the peel performance of waterproof coatings according to claim 1, characterized in that, The roller assembly (20) includes a roller shaft (22) and rollers (23) sleeved on the roller shaft (22). The two ends of the roller shaft (22) are respectively fixed on the two side plates (12), and the roller (23) is rotatably disposed on the roller shaft (22), or the roller (23) is fixed on the roller shaft (22), and the two ends of the roller shaft (22) are rotatably connected to the two side plates (12).
9. The fixture for testing the peel performance of waterproof coatings according to any one of claims 1 to 8, characterized in that, The base plate (11) is provided with a mounting base (40) on the side opposite to the mounting cavity (13) for mounting on the test device.
10. A testing apparatus, characterized in that, Includes the fixture for testing the peel performance of waterproof coatings as described in any one of claims 1 to 9.