Adhesive tape initial tack and peel force integrated testing device and testing method
By designing an integrated testing device for tape initial tack and peel force, the problems of single function and high cost of existing testing devices are solved. This device enables multi-angle peel force testing, simplifies the operation process, and reduces costs.
Patent Information
- Application Number
- CN202311216300.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2043-09-20
AI Technical Summary
In the existing technology, the initial tack and peel strength tests of tapes require two separate devices, which are cumbersome and costly to operate. In addition, the peel strength test range is limited and multi-angle testing cannot be achieved.
An integrated testing device for initial tack and peel force of adhesive tape was designed, including a base plate, a telescopic mechanism, a sliding plate, a tensile testing machine, and a flip plate. Initial tack is tested by adjusting the angle of the flip plate and rolling steel balls, and peel force is tested by using a tensile testing machine and a clamp, thus expanding the range of peel force testing.
It integrates initial tack and peel strength testing, simplifies the operation process, reduces testing costs, and expands the peel strength testing range.
Smart Images

Figure CN117233084B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tape adhesion testing technology, and provides an integrated tape initial tack and peel force testing device that is simple in structure, easy to operate, integrates initial tack and peel force testing, expands the peel force testing range, and reduces testing costs. Background Technology
[0002] Adhesive tape consists of two parts: a substrate and an adhesive. It connects two or more unconnected objects together by bonding. Various types of adhesive tape are used in the production and assembly process of touch screens, such as light-shielding tape, reflective tape, conductive tape, edge-sealing tape, etc. The quality of the tape directly affects the stability of the internal structure of the touch screen. It is necessary to conduct random inspections and tests on the purchased tapes to ensure that the quality of the tapes meets the production requirements.
[0003] The initial tack and peel strength parameters of an adhesive tape directly reflect its quality, with peel strength also known as adhesion. Initial tack is the contact force generated under the initial contact between the adhesive and the substrate; it is the adhesive force under the conditions of minimum pressure and shortest contact time, and is independent of the adhesive force under pressure. High initial tack reflects high adhesion and good bonding with rough surfaces. Peel strength is the attractive force between the adhesive and the substrate surface, and is often the most critical performance indicator of the tape. It generates adhesive force by applying pressure to the bonding surface and is determined by the adhesive system, the substrate, pressure, and time.
[0004] Currently, testing initial tack and peel strength requires separate initial tack and peel strength testing devices, resulting in high labor costs and testing costs. Existing initial tack testing devices generally include a base plate and an adjustable-angle flip plate mounted on the base plate. During testing, the adhesive tape is fixed to the flip plate, and its initial tack is measured by the natural rolling of a ball bearing on the adhesive surface of the tape. Peel strength testing devices are more diverse. For example, the gauge for testing the adhesive strength of tape disclosed in Chinese Patent 201710227077.6 can only test peel strength at specific angles, resulting in a limited applicable angle range. The test data cannot objectively reflect peel strength at multiple angles, limiting the scope of peel strength testing.
[0005] In summary, existing tape testing devices are functionally limited. For example, initial tack and peel strength require separate testing devices, which is cumbersome and costly. Furthermore, conventional peel strength testing devices cannot measure peel strength at different angles, have a limited applicable angle range, and the resulting test data cannot objectively reflect peel strength at multiple angles, thus limiting the peel strength testing range. Existing tape testing methods result in high testing costs and a limited peel strength testing range. Summary of the Invention
[0006] In view of this, the purpose of the present invention is to provide an integrated testing device for tape initial tack and peel force that is simple in structure, easy to operate, integrates initial tack and peel force testing, expands the peel force testing range, and reduces testing costs.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] The present invention provides an integrated testing device for initial tack and peel force of adhesive tape, comprising a base plate, wherein: a telescopic mechanism, a sliding plate and a tensile testing machine are disposed on the base plate;
[0009] The telescopic mechanism is fixed to the left side of the top surface of the base plate, the left side wall of the slide plate is fixed to the outer end of the telescopic rod of the telescopic mechanism, and the tensioning machine is fixed to the right side of the top surface of the base plate.
[0010] The top surface of the slide plate has two symmetrical semi-circular grooves. A flap is set between the two semi-circular grooves. The bottom end of the flap is fixed to the rotating shaft. The rotating shaft is fixed to the bearing seat by the bearing. A guide slide rod is fixed on each of the front and rear side plates of the flap. The outer ends of the two guide slide rods pass through the two semi-circular grooves respectively. The outer ends of the guide slide rods are threaded with guide slide rod locking nuts.
[0011] The right side of the flip plate is provided with distance scale lines, and a steel ball groove is provided at the top of the right side of the plate, on which a steel ball guide ring is fixed.
[0012] A steel plate receiving groove is provided on the left side of the flip plate, and a flip plate clearance groove is provided on the top surface of the slide plate. A steel plate limiting mechanism is provided on the right side of the flip plate clearance groove, and the steel plate limiting mechanism is fixed on the top surface of the slide plate.
[0013] The tensile testing machine further includes a gantry frame and a clamp fixed on the gantry frame;
[0014] A steel ball collecting groove is provided on the top surface of the skateboard, and the steel ball collecting groove is located on the left side of the flip-board clearance groove;
[0015] The bottom surface of the skateboard has at least one groove, which is located on the slide rail.
[0016] To ensure safety during the use of the skateboard, a limiting baffle is integrated with the right end of the slide rail.
[0017] To facilitate arbitrary angle adjustment during the experiment, at least one of the two semicircular slides has an angle scale line on its outer wall, and the guide rod in the semicircular slide with the angle scale line has an indicator line on its outer end face.
[0018] To make the extension and retraction of the telescopic mechanism easy to control and ensure its stability, the telescopic mechanism is further described as a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod.
[0019] To ensure the stability of the flap rotation integrated with the shaft, there are two bearing seats, each located at the center of a semi-circular groove.
[0020] To facilitate the fixing of the steel plate during the experiment, the steel plate receiving groove is further provided with steel plate fixing screws.
[0021] To make the steel plate limiting mechanism simple in structure and easy to manufacture, the steel plate limiting mechanism further includes a limiting box fixed on the top surface of the slide plate, a return spring located in the limiting box, and a limiting block fixed on the outer end of the return spring.
[0022] The beneficial effects of the above-described structure of the present invention are:
[0023] 1. It integrates initial tack and peel force testing equipment, reducing testing costs;
[0024] 2. Simple structure and easy operation;
[0025] 3. Effectively expands the peel force test range.
[0026] This invention also provides a method for testing the initial tack of adhesive tape using an integrated testing device for initial tack and peel strength that reduces testing costs, comprising the following steps:
[0027] The first step is to lay the flip plate flat with the right side facing up, and fix the tape to be tested on the steel ball rolling area on the steel ball groove of the right side of the plate according to the test requirements, with the adhesive side of the tape facing up.
[0028] The second step is to flip the flap according to the required angle for the test. When the right side of the flap is facing up and tilted at the required angle for the test, tighten the guide slide rod and lock the nut to fix it.
[0029] The third step is to place steel balls of the corresponding specifications into the steel ball guide ring in order from small to large, and then gently lift the steel ball guide ring. The steel balls will roll on the adhesive surface of the tape until a steel ball does not fall into the steel ball collection groove and is closest to the end of the tape. This is a valid test. Determine the corresponding initial adhesion data based on the steel ball of that specification.
[0030] The fourth step is to clean all the steel balls used in the test after the test is completed, so that they can be used again next time.
[0031] The beneficial effects of the above-mentioned initial tack test method of the present invention are: it simplifies the test steps, is easy to operate, and allows the same test worker to complete the peel force test at the same set of test equipment, effectively reducing the input of test costs.
[0032] This invention also provides a peel force testing method for an integrated tape initial tack and peel force testing device, characterized by comprising the following steps:
[0033] The first step is to place a steel plate with dimensions matching the steel plate receiving groove horizontally, and stick one end of the adhesive side of the tape to be tested onto the steel plate and press it for a sufficient time, leaving the other end out to form a reserved section;
[0034] The second step is to insert the steel plate into the steel plate receiving groove and tighten several steel plate fixing screws to fix the steel plate.
[0035] The third step is to rotate the flip plate according to the required angle for the test until the required angle is reached, and then tighten the guide slide rod and lock the nut to fix it; the required angle for the test is 90° to 180°, that is, 180° when the steel plate is vertical and 90° when the steel plate is horizontal.
[0036] Fourth, the telescopic rod of the telescopic mechanism moves the slide until the flip plate is directly below the clamp;
[0037] Fifth step: clamp the reserved section of the tape to be tested with the clamp, and adjust the position of the flap of the telescopic mechanism until the reserved section of the tape is straightened.
[0038] Step 6: Start the tensile testing machine, move the clamps upward at a constant speed, and record the data of the tensile testing machine, which is the peel force of the tape at the required testing angle;
[0039] Step 7: After the test is completed, remove the steel plate and clean it for the next test.
[0040] In order to ensure the constant maintenance of the required testing angle and the accuracy of the test data, in the above-mentioned peel force test method, in the sixth step, when the required testing angle is greater than or equal to 90° and less than 180°, the tensile testing machine is started to pull upward at a constant speed while ensuring that the slide plate moves horizontally, so that the reserved section of the tape under test is always in a vertical state during the process of the clamp pulling the tape under test upward at a constant speed.
[0041] The beneficial effects of the peel force testing method described above in this invention are: it simplifies the testing steps, is easy to operate, and allows the same testing worker to complete the initial tack test using the same set of testing equipment, effectively reducing testing costs. Simultaneously, it can perform peel force tests at angles required for testing from 90° to 180°, expanding the peel force testing range and reducing testing costs.
[0042] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description
[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:
[0044] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0045] Figure 2 This is a structural schematic diagram of the present invention from the main viewing direction;
[0046] Figure 3 This is a three-dimensional structural diagram of the skateboard of the present invention;
[0047] Figure 4 This is a schematic diagram of the structure of the right side of the flip plate of the present invention;
[0048] Figure 5 This is a schematic diagram of the flip plate of the present invention from the front view.
[0049] Figure 6 This is a schematic diagram of the structure of the left side of the flip plate of the present invention;
[0050] Figure 7 This is a three-dimensional structural diagram of the peel force test of the present invention in one direction;
[0051] Figure 8 This is a three-dimensional structural diagram of another direction during the peel force test of this invention;
[0052] Figure 9 This is a schematic diagram of a three-dimensional partial structure of the flap having an included angle during the peel force test of this invention;
[0053] Figure 10 This is a schematic diagram of a three-dimensional partial structure with the flip plate at 180 degrees during the peel force test of this invention.
[0054] Reference numerals: 1-Base plate, 2-Telescopic mechanism, 3-Slide plate, 4-Tension machine, 5-Telescopic rod, 6-Semi-circular chute, 7-Flip plate, 8-Rotating shaft, 9-Bearing seat, 10-Guide slide rod, 11-Guide slide rod locking nut, 12-Right plate surface, 13-Distance scale line, 14-Steel ball groove, 15-Steel ball guide ring, 16-Left plate surface, 17-Steel plate receiving groove, 18-Flip plate clearance groove, 19-Steel plate limiting mechanism, 20-Gate-shaped bracket, 21-Clamping head, 22-Steel ball collecting groove, 23-Slide groove, 24-Slide rail, 25-Angle scale line, 26-Indicator line, 27-Limiting baffle, 28-Steel plate fixing screw, 29-Limiting box, 30-Reset spring, 31-Limiting block, 32-Test tape, 33-Steel plate. Detailed Implementation
[0055] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0056] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual photographs, and should not be construed as limiting this patent. To better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.
[0057] This is an appendix. Figure 1-5 The tape initial tack and peel force integrated testing device of the present invention includes a base plate 1, wherein: a telescopic mechanism 2, a sliding plate 3 and a tensile testing machine 4 are disposed on the base plate 1;
[0058] The telescopic mechanism 2 is fixed on the left side of the top surface of the base plate 1, the left side wall of the slide plate 3 is fixed to the outer end of the telescopic rod 5 of the telescopic mechanism 2, and the tensioning machine 4 is fixed on the right side of the top surface of the base plate 1.
[0059] The top surface of the slide plate 3 is symmetrically provided with two semi-circular grooves 6. A flap 7 is provided between the two semi-circular grooves 6. The bottom end of the flap 7 is fixed to the rotating shaft 8. The rotating shaft 8 is fixed to the bearing seat 9 by bearings. A guide slide rod 10 is fixed on each of the front and rear side plates of the flap 7. The outer ends of the two guide slide rods 10 pass through the two semi-circular grooves 6 respectively. The outer ends of the guide slide rods 10 are threadedly connected to the guide slide rod locking nut 11.
[0060] The right plate surface 12 of the flip plate 7 is provided with a distance scale line 13, and a steel ball groove 14 is provided at the top of the right plate surface 12. A steel ball guide ring 15 is fixed on the steel ball groove 14.
[0061] A steel plate receiving groove 17 is provided on the left plate surface 16 of the flip plate 7, and a flip plate clearance groove 18 is provided on the top plate surface of the slide plate 3. A steel plate limiting mechanism 19 is provided on the right side of the flip plate clearance groove 18, and the steel plate limiting mechanism 19 is fixed on the top plate surface of the slide plate 3.
[0062] The tensile testing machine 4 further includes a gantry bracket 20 and a clamp 21 fixed on the gantry bracket 20;
[0063] A steel ball collecting groove 22 is provided on the top surface of the slide plate 3, and the steel ball collecting groove 22 is located on the left side of the flip-board clearance groove 18;
[0064] At least one groove 23 is provided on the bottom surface of the slide plate 3, and the groove 23 is located on the slide rail 24. In this embodiment, the structure is simple, easy to operate, integrates initial tack and peel force testing, expands the peel force testing range, and reduces testing costs. In specific implementation, the clamp 21 is located in the groove of the portal frame 20. The clamp 21 is fixed to the end of the telescopic rod of a hydraulic cylinder, pneumatic cylinder, or servo motor with a drive screw. The hydraulic cylinder, pneumatic cylinder, or servo motor with a drive screw is fixed to the top of the portal frame 20. The hydraulic cylinder, pneumatic cylinder, or servo motor with a drive screw is not shown in the figure. The hydraulic cylinder, pneumatic cylinder, or servo motor with a drive screw is a conventional technical solution adopted by the tensile testing machine 4.
[0065] To ensure the safety of the skateboard 3 during use, in the above embodiment, preferably, a limiting baffle 27 integral with the right end of the slide rail 24 is provided.
[0066] To facilitate arbitrary angle adjustment during experiments, in the above embodiment, preferably, at least one of the two semicircular slide grooves 6 has an angle scale line 25 on its outer wall surface, and an indicator line 26 is provided on the outer end surface of the guide slide rod 10 in the semicircular slide groove 6 with the angle scale line 25.
[0067] To ensure that the telescopic mechanism 2 can be easily controlled and its extension and retraction are stable, in the above embodiments, preferably, the telescopic mechanism 2 is a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod.
[0068] To ensure the stability of the flap rotation integrated with the rotating shaft, in the above embodiment, preferably, there are two bearing seats 9, which are respectively located at the center of the two semi-circular sliding grooves 6.
[0069] To facilitate the fixing of the steel plate during the experiment, in the above embodiment, preferably, a steel plate fixing screw 28 is provided at the steel plate receiving groove 17.
[0070] To make the steel plate limiting mechanism simple in structure and easy to manufacture, the steel plate limiting mechanism 19 further includes a limiting box 29 fixed on the top surface of the slide plate 3, a return spring 30 located in the limiting box 29, and a limiting block 31 fixed on the outer end of the return spring 30.
[0071] See appendix Figures 1 to 5 The test procedure for using this structure as the initial adhesion test is as follows:
[0072] First, place the flip plate 7 flat with the right plate surface 12 facing upwards, and fix the tape to be tested on the steel ball roller groove 14 on the right plate surface 12 at the distance scale line 13 where the steel ball rolls down, according to the test requirements, with the adhesive side of the tape facing upwards.
[0073] The second step is to flip the flap 7 according to the required angle for the test. When the right side 12 of the flap 7 is facing upward and tilted at the required angle for the test, tighten the guide slide rod locking nut 11 to fix it.
[0074] The third step involves placing steel balls of the corresponding specifications into the steel ball guide ring 15 in order of increasing size. Then, the steel ball guide ring 15 is gently lifted, and the steel balls roll on the adhesive surface of the tape until a steel ball fails to fall into the steel ball collection groove 22 and is closest to the end of the tape. This is considered a valid test. The initial adhesion data is determined based on the steel ball of that specification. (This testing process is a conventional method in the prior art.)
[0075] The fourth step is to clean all the steel balls used in the test after the test is completed, so that they can be used again next time.
[0076] See appendix Figures 1 to 10 The test method steps for using this structure as a peel force test are as follows:
[0077] The first step is to place the steel plate 33, whose size matches the steel plate receiving groove 17, horizontally, and stick one end of the adhesive side of the tape 32 to be tested onto the steel plate 33 and press it for a sufficient time, leaving the other end out to form a reserved section.
[0078] The second step is to insert the steel plate 33 into the steel plate receiving groove 17 and tighten several steel plate fixing screws to fix the steel plate 33.
[0079] The third step is to rotate the flip plate 7 according to the required angle for the test until the required angle is reached, and then tighten the guide slide rod locking nut 11 to fix it; the required angle for the test is 90° to 180°, that is, 180° when the steel plate is vertical and 90° when the steel plate is horizontal.
[0080] Fourth step, the telescopic rod 5 of the telescopic mechanism 2 drives the slide plate 3 to move until the flip plate 7 is directly below the clamp 21;
[0081] Fifth step, clamp 21 clamps the reserved section of the tape 32 to be tested, and adjust the position of the flip plate 7 by the telescopic rod 5 of the telescopic mechanism 2 until the reserved section of the tape is straightened.
[0082] Step 6: Start the tensile testing machine 4, which will drive the clamp 21 to move upward at a constant speed. Record the data of the tensile testing machine 4, which is the peel force of the tape at the required testing angle; (this step is a conventional method in the existing technology).
[0083] Step 7: After the test is completed, remove steel plate 33 and clean it for the next test.
[0084] To ensure the constant angle required for the test and the accuracy of the test data, in the above peel force test method embodiment, preferably: in the sixth step, when the angle required for the test is greater than or equal to 90° and less than 180°, the tensile testing machine 4 is started to pull upward at a constant speed while ensuring that the slide plate 3 moves horizontally, so that the reserved section of the tape 32 to be tested is always in a vertical state during the process of the clamp 21 pulling the tape 32 to be tested upward at a constant speed.
[0085] The above-described methods for testing initial tack and peel strength simplify operations, reduce labor costs for businesses, and enable peel strength tests at angles from 90° to 180°, thus expanding the range of peel strength tests and reducing testing costs.
[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. An integrated testing device for initial tack and peel strength of adhesive tape, comprising a base plate (1), characterized in that: Telescopic mechanism (2), sliding plate (3) and tensile testing machine (4) are installed on the base plate (1); The telescopic mechanism (2) is fixed on the left side of the top plate surface of the base plate (1), the left side wall of the slide plate (3) is fixed to the outer end of the telescopic rod (5) of the telescopic mechanism (2), and the tensioning machine (4) is fixed on the right side of the top plate surface of the base plate (1). The top plate of the slide plate (3) is symmetrically provided with two semi-circular slide grooves (6), and a flap (7) is provided between the two semi-circular slide grooves (6). The bottom end of the flap (7) is fixed to the rotating shaft (8) as a whole. The rotating shaft (8) is fixed to the bearing seat (9) by a bearing. A guide slide rod (10) is fixed on each of the front and rear side plates of the flap (7). The outer ends of the two guide slide rods (10) pass through the two semi-circular slide grooves (6) respectively. The outer ends of the guide slide rods (10) are threaded with guide slide rod locking nuts (11). The right plate (12) of the flip plate (7) is provided with a distance scale line (13), and a steel ball groove (14) is provided at the top of the right plate (12), and a steel ball guide ring (15) is fixed on the steel ball groove (14). A steel plate receiving groove (17) is provided on the left plate surface (16) of the flip plate (7), and a flip plate clearance groove (18) is provided on the top plate surface of the slide plate (3). A steel plate limiting mechanism (19) is provided on the right side of the flip plate clearance groove (18), and the steel plate limiting mechanism (19) is fixed on the top plate surface of the slide plate (3). The tensile testing machine (4) further includes a gantry bracket (20) and a clamp (21) fixed on the gantry bracket (20). The top surface of the slide plate (3) is provided with a steel ball collecting groove (22), which is located to the left of the flip-board clearance groove (18); The bottom plate of the slide plate (3) is provided with at least one groove (23), which is located on the slide rail (24).
2. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: The right end of the slide rail (24) is provided with a limiting baffle (27) integrated with it.
3. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: An angle scale line (25) is provided on the outer wall surface of at least one of the two semicircular slides (6), and an indicator line (26) is provided on the outer end surface of the guide slide rod (10) in the semicircular slide (6) with the angle scale line (25).
4. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: The telescopic mechanism (2) is a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod.
5. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: There are two bearing seats (9), which are located at the center of two semi-circular grooves (6).
6. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: A steel plate fixing screw (28) is provided at the steel plate receiving groove (17).
7. The integrated testing device for initial tack and peel strength of adhesive tape according to claim 1, characterized in that: The steel plate limiting mechanism (19) further includes a limiting box (29) fixed on the top surface of the slide plate (3), a return spring (30) located in the limiting box (29), and a limiting block (31) fixed on the outer end of the return spring (30).
8. The method for testing initial tack strength using the integrated tape initial tack and peel strength testing device according to any one of claims 1 to 7, characterized in that: Includes the following steps, First, place the flip plate (7) flat with the right plate surface (12) facing up, and fix the tape to be tested on the steel ball rolling groove (14) on the right plate surface (12) in the steel ball rolling area at the distance scale line (13) according to the test requirements, with the adhesive side of the tape facing up. The second step is to flip the flap (7) according to the required angle for the test. When the right side (12) of the flap (7) is facing upward and tilted at the required angle for the test, tighten the guide slide rod locking nut (11) to fix it. The third step is to place the steel balls of the corresponding specifications into the steel ball guide ring (15) in order from small to large, and then gently lift the steel ball guide ring (15). The steel balls roll on the adhesive surface of the tape until a steel ball does not fall into the steel ball collection groove (22) and is closest to the end of the tape. This is a valid test. The corresponding initial adhesion data is determined according to the steel ball of that specification. The fourth step is to clean all the steel balls used in the test after the test is completed, so that they can be used again next time.
9. The peel force testing method of the integrated tape initial tack and peel force testing device according to any one of claims 1 to 7, characterized in that: Includes the following steps, First, place the steel plate (33) with the size matching the steel plate receiving groove (17) horizontally, and stick one end of the adhesive side of the tape (32) to be tested onto the steel plate (33) and press it for a sufficient time, leaving the other end out to form a reserved section; The second step is to insert the steel plate (33) into the steel plate receiving groove (17) and tighten several steel plate fixing screws to fix the steel plate (33); The third step is to rotate the flip plate (7) according to the required angle for the test until the required angle is reached, and tighten the guide slide lock nut (11) to fix it; the required angle for the test is 90° to 180°, that is, 180° when the steel plate is vertical and 90° when the steel plate is horizontal. Fourth step, the telescopic rod (5) of the telescopic mechanism (2) drives the slide (3) to move until the flip plate (7) is directly below the clamp (21); Fifth step, the clamp (21) clamps the reserved section of the tape (32) to be tested, and the telescopic rod (5) of the telescopic mechanism (2) adjusts the position of the flip plate (7) until the reserved section of the tape is straightened; Step 6: Start the tensile testing machine (4) and drive the clamp (21) to move upward at a constant speed. Record the data of the tensile testing machine (4), which is the peel force of the tape at the required testing angle. Step 7: After the test is completed, remove the steel plate (33) and clean it for the next test.
10. The peel force testing method of the integrated tape initial tack and peel force testing device according to claim 9, characterized in that: In the sixth step, when the required angle for testing is greater than or equal to 90° and less than 180°, the tensile testing machine (4) is started to pull up at a constant speed while ensuring that the slide plate (3) moves horizontally, so that the reserved section of the tape to be tested (32) is always in a vertical state during the process of the clamp (21) pulling up the tape to be tested (32) at a constant speed.
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