Adhesive force testing mechanism for high-viscosity BOPP (biaxially-oriented polypropylene) adhesive tape

Abstract

The utility model discloses an adhesive force testing mechanism for a high-viscosity BOPP (biaxially-oriented polypropylene) adhesive tape, which belongs to the technical field of adhesive tape testing mechanisms and comprises a bottom plate, two ends of the bottom plate are provided with support frames, the middle of the bottom plate is provided with a testing door frame and a bonding plate, the bonding plate is rotatably mounted on the support frames, and the support frames are provided with angle locking mechanisms. The locking mechanism is used for locking the bonding plate on a plurality of specific inclination angles, the pressurizing mechanism is used for applying downward pressure to the middle of the adhesive tape, and the pressure feedback mechanism can measure the maximum downward pressure applied by the pressurizing mechanism in the downward pressing process. The technical key points are as follows: through combination of inclination angle adjustment of the bonding plate and length adjustment of the adhesive tape, measurement working conditions of different tension angles are simulated, so that the test mechanism can complete test tasks of various working conditions, and in addition, the mechanism is simple in overall structure, does not need to be driven by electrical equipment, and is convenient to use. And the pressure feedback mechanism can quantify the maximum downward pressure of the pressurizing mechanism, so that the adhesive force of the currently tested adhesive tape is judged.

Description

TECHNICAL FIELD

[0001] The utility model relates to adhesive tape test mechanism technical field, concretely is a kind of high sticky BOPP adhesive tape adhesion test mechanism. BACKGROUND

[0002] BOPP adhesive tape is formed by uniformly applying pressure-sensitive latex emulsion on BOPP film through warming, forming a certain thickness of adhesive layer, and then cutting into small rolls of different specifications by slitting machine. Adhesion of adhesive tape is one of the key indicators to measure the quality of adhesive tape. Through adhesion test, the adhesion performance of adhesive tape on different material surfaces can be evaluated, so as to ensure that adhesive tape can meet the expected adhesion effect in actual application. This is crucial to ensure the reliability of the product and the safety of the user.

[0003] The utility model with publication number CN217332117U discloses a kind of pressure-sensitive adhesive tape sustained adhesion test device, the utility model is clamped when carrying out to adhesive tape, paste pad will be in contact with the pasting layer of adhesive tape, so that adhesive tape can be fixed on paste pad, the other side of adhesive tape is relatively smooth, it is fixed by the clamping of gear teeth, so that adhesive tape is clamped more firmly, so that adhesive tape will not fall off when being pulled and tested.

[0004] But the above-mentioned device when using, the angle between the application direction of tension and the adhesive surface of adhesive tape cannot be adjusted, that is, the adhesion of adhesive tape cannot be tested at multiple specific tension angles, so that the test conditions that can be simulated by the device are relatively single. In addition, the device is equipped with multiple electrical structures for cooperative work, which has high use cost, and its working scene needs to meet the power demand, so that its use scene has certain limitation. Therefore, in view of the above problems, a kind of high sticky BOPP adhesive tape adhesion test mechanism is proposed. UTILITY MODEL CONTENTS

[0005] The technical problem this invention aims to solve is to provide a high-adhesion BOPP tape adhesion testing mechanism. This tape testing mechanism has two sets of rotatable adhesive plates, which can be fixed at specific tilt angles under the action of an angle locking mechanism. During measurement, the two ends of the tape are bonded to the adhesive plates, and a pressure mechanism applies downward pressure to the middle of the tape, thereby generating tension at both ends of the tape. The magnitude of its adhesion force is measured. Based on the above solution, the measurement conditions of different tension angles can be simulated by combining the tilt angle adjustment of the adhesive plates with the length adjustment of the tape. This allows the testing mechanism to complete various testing tasks. In addition, the overall structure of the mechanism is simple and does not require the use of electrical equipment for driving. The pressure feedback mechanism is composed of a simple structure and can quantify the maximum downward pressure applied by the pressure mechanism during the downward pressing process, thereby determining the magnitude of the adhesion force of the tape being tested. This solves the technical problems of the comparative technology, which cannot test the adhesion force of the tape at various specific tension angles, simulates relatively simple test conditions, requires multiple electrical structures to work together, and has high usage costs and certain scenario limitations.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A high-adhesion BOPP tape adhesion testing mechanism includes a base plate with support frames at both ends, a test gantry in the middle, an adhesive plate mounted on the support frames and rotatably connected to them via a rotating shaft, and an angle locking mechanism on the support frames to lock the adhesive plate at specific tilt angles. A pressure applying mechanism, slidably disposed within the support frames, applies downward pressure to the middle of the tape. A pressure feedback mechanism measures the maximum downward pressure applied by the pressure applying mechanism during the pressing process. By combining the tilt angle adjustment of the adhesive plate with the tape length adjustment, different tensile angle measurement conditions can be simulated, enabling the testing mechanism to perform various testing tasks. Furthermore, the overall structure of the mechanism is simple, requiring no electrical drive. The pressure feedback mechanism, with its simple structure, can quantify the maximum downward pressure applied by the pressure applying mechanism during the pressing process, thereby determining the adhesion strength of the tape being tested.

[0008] In one possible implementation, the angle locking mechanism includes a mating cylinder fixedly mounted on a support frame, which has several slots arranged in a circular array. A hexagonal rod is fixedly connected to the end of the rotating shaft, and a locking cover is slidably sleeved on it. The locking cover can be sleeved on the mating cylinder and engaged with it. At this time, the locking cover cannot rotate relative to the mating cylinder, and at the same time, the locking cover cannot rotate relative to the hexagonal rod, that is, the rotating shaft cannot rotate, so that the adhesive plate can be fixed at a specific angle.

[0009] In one possible implementation, the inner wall of the front opening of the locking cover cylinder is fixedly provided with a snap-fit ​​ridge corresponding to the slot, and the rear end of the locking cover cylinder is provided with a hexagonal hole corresponding to the hexagonal rod. Based on the above technical solution, the locking cover cylinder and the mating cylinder are snapped together by the snap-fit ​​ridge and the slot, and the sliding connection between the locking cover cylinder and the hexagonal rod is achieved by the cooperation of the hexagonal hole and the hexagonal rod, while the two cannot rotate relative to each other.

[0010] In one possible implementation, the pressurizing mechanism includes a base plate with several slidably connected sliding rods. A pressure plate is fixedly connected to the bottom end of each sliding rod, and an anti-detachment cap is fixedly connected to the top end of each sliding rod. A compression spring is sleeved on the outside of the sliding rod, with its two ends abutting against the base plate and the pressure plate, respectively. In use, the base plate is pressed down by a gripping mechanism, which moves the pressure plate downward. When the pressure plate contacts the tape, the compression spring is gradually compressed and deformed under the action of the reaction force. Based on this force transmission method, the pressure manually applied by the tester is converted into the pressure applied by the spring. This pressure is more stable and will not fluctuate violently, making the tested structure more accurate and reducing the influence of human factors.

[0011] In one possible implementation, the pressure feedback mechanism includes a scale bar fixedly disposed in the middle of the upper end face of the substrate, wherein a measuring slide is installed with a sliding friction connection. When the measuring slide slides, the scale on the corresponding scale bar changes synchronously. When the compression spring is gradually compressed and deformed, the anti-detachment cap will move upward relative to the substrate and gradually lift the measuring slide. The height to which the measuring slide is lifted is positively correlated with the maximum elastic force of the compression spring. The maximum elastic force of the compression spring corresponds to the maximum pressure it applies to the tape, and also corresponds to the maximum value of the tape adhesion force. The maximum height of the measuring slide can be read through the scale on the scale bar.

[0012] In one possible implementation, the substrate is provided with a gripping mechanism at both ends, which includes a handle. The end of the handle is fixedly connected to the substrate via a sliding block. The test gantry includes a U-shaped frame with sliding grooves on both sides that match the size of the sliding block. The sliding block is slidably disposed in the sliding groove. Through the above structure, the movable connection between the pressure mechanism and the test gantry can be realized. The tester can apply pressure to the pressure mechanism through the handle, thereby testing the adhesion of the tape.

[0013] In one possible implementation, the adhesive board includes a board body with a cutting groove on the rear side of its upper end face. The cutting groove facilitates the tester to cut off excess tape, ensuring that the adhesion area of ​​the tape is consistent in each test. The front end of the upper end face is machined with an anti-stick chamfer, which prevents the tape from sticking to the front end face of the board body and affecting the normal conduct of the test.

[0014] In one possible implementation, the outer end of the hexagonal rod is threaded with a pressing end piece, and the hexagonal rod is fitted with an anti-disengagement spring, the two ends of which abut against the locking cover and the pressing end piece respectively. After the pressing end piece is installed, the anti-disengagement spring will apply a pushing force to the locking cover inward to prevent the locking cover from sliding outward and causing the locking function of the angle locking mechanism to fail.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] The tape testing mechanism is equipped with two sets of rotatable adhesive plates, which can be fixed at certain tilt angles under the action of the angle locking mechanism. During measurement, the two ends of the tape are bonded to the adhesive plates, and the pressure mechanism applies downward pressure to the middle of the tape, thereby generating tension at both ends of the tape. The magnitude of its adhesive force is measured. Based on the above scheme, the measurement conditions of different tension angles can be simulated by combining the tilt angle adjustment of the adhesive plates with the length adjustment of the tape, so that the testing mechanism can complete the testing tasks under various working conditions.

[0017] Furthermore, the overall structure of the mechanism is simple and does not require the use of electrical equipment for driving. Both the pressure-applying mechanism and the pressure feedback mechanism are composed of simple structures. The pressure feedback mechanism can quantify the maximum downward pressure applied by the pressure-applying mechanism during the pressing process, thereby determining the magnitude of the adhesive force of the tape being tested, thus enabling the detection of the adhesive force without the use of force sensors. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the angle locking mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the pressurization structure of this utility model;

[0022] Figure 4 This is a partial structural diagram of the pressurization mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the locking cover structure of this utility model.

[0024] In the diagram: 1. Base plate; 2. Support frame; 3. Adhesive plate; 31. Main body of the plate; 32. Cutting groove; 33. Anti-stick chamfer; 4. Angle locking mechanism; 41. Fitting cylinder; 42. Hexagonal rod; 43. Locking cover cylinder; 431. Snap-fit ​​edge; 432. Hexagonal hole; 44. Anti-disengagement spring; 45. Extrusion end piece; 5. Test gantry; 51. U-shaped frame; 52. Sliding groove; 6. Pressurization mechanism; 61. Base plate; 62. Sliding rod; 63. Pressure plate; 64. Compression spring; 65. Anti-disengagement cap; 7. Pressure feedback mechanism; 71. Scale rod; 72. Measuring slider; 8. Grip mechanism; 81. Handle; 82. Sliding block. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 As shown, this embodiment provides a high-adhesion BOPP tape adhesion testing mechanism, including a base plate 1 with support frames 2 installed at both ends, a test gantry 5 in the middle, an adhesive plate 3 mounted on the support frame 2 and rotatably connected to it via a rotating shaft, and an angle locking mechanism 4 on the support frame 2 to lock the adhesive plate 3 at specific tilt angles, a pressure applying mechanism 6 slidably disposed in the support frame 2 to apply downward pressure to the middle of the tape, and a pressure feedback mechanism 7 that can measure the maximum downward pressure applied by the pressure applying mechanism 6 during the downward pressing process. By combining the tilt angle adjustment of the adhesive plate 3 with the length adjustment of the tape, different tensile angle measurement conditions can be simulated, enabling the testing mechanism to complete various testing tasks. In addition, the overall structure of the mechanism is simple and does not require power equipment for driving. The pressure feedback mechanism 7 has a simple structure and can quantify the maximum downward pressure applied by the pressure applying mechanism 6 during the downward pressing process, thereby determining the magnitude of the adhesion force of the tape currently being tested.

[0027] like Figure 2 , Figure 5As shown, the angle locking mechanism 4 includes a mating cylinder 41 fixedly mounted on the support frame 2, which has several slots arranged in a circular array. A hexagonal rod 42 is fixedly connected to the end of the rotating shaft, and a locking cover 43 is slidably sleeved on the rod. The locking cover 43 can be sleeved on the mating cylinder 41 and engaged with it. At this time, the locking cover 43 cannot rotate relative to the mating cylinder 41, and at the same time, the locking cover 43 cannot rotate relative to the hexagonal rod 42, that is, the rotating shaft cannot rotate, thus fixing the adhesive plate 3 in place. From a specific angle; the inner wall of the front opening of the locking cover 43 is fixedly provided with a snap-fit ​​ridge 431 corresponding to the slot, and the rear end of the locking cover 43 is provided with a hexagonal hole 432 corresponding to the hexagonal rod 42. Based on the above technical solution, the locking cover 43 and the mating cylinder 41 are snapped together by the snap-fit ​​ridge 431 and the slot, and the sliding connection between the locking cover 43 and the hexagonal rod 42 is achieved by the cooperation of the hexagonal hole 432 and the hexagonal rod 42, while the two cannot rotate relative to each other.

[0028] To prevent the locking cover 43 from sliding outwards during use, thus causing the locking function of the angle locking mechanism 4 to fail, such as... Figure 2 As shown, the outer end of the hexagonal rod 42 is threaded with a pressing end piece 45, and the hexagonal rod 42 is fitted with an anti-disengagement spring 44. Its two ends abut against the locking cover 43 and the pressing end piece 45 respectively. After the pressing end piece 45 is installed, the anti-disengagement spring 44 will apply a pushing force to the locking cover 43 towards the inward side to prevent the locking cover 43 from sliding outward and causing the locking function of the angle locking mechanism 4 to fail.

[0029] like Figures 3-4 As shown, the pressurizing mechanism 6 includes a base plate 61, in which several sliding rods 62 are slidably connected. A pressure plate 63 is fixedly connected to the bottom end of the sliding rod 62, and an anti-detachment cap 65 is fixedly connected to the top end of the sliding rod 62. A compression spring 64 is sleeved on the outside of the sliding rod 62, and its two ends abut against the base plate 61 and the pressure plate 63 respectively. In use, the base plate 61 is pressed down by the gripping mechanism 8, which drives the pressure plate 63 to move down. When the pressure plate 63 contacts the tape, the compression spring 64 is gradually compressed and deformed under the action of the reaction force. Based on this force transmission method, the pressure manually applied by the tester is converted into the pressure applied by the spring. This pressure is more stable and will not fluctuate violently, which can make the test structure more accurate and reduce the influence of human factors.

[0030] The substrate 61 is provided with a gripping mechanism 8 at both ends, which includes a handle 81. The end of the handle 81 is fixedly connected to the substrate 61 through a sliding block 82. The test gantry 5 includes a U-shaped frame 51, and sliding grooves 52 with the same size as the sliding block 82 are opened on both sides. The sliding block 82 is slidably disposed in the sliding groove 52. Through the above structure, the movable connection between the pressure mechanism 6 and the test gantry 5 can be realized. The tester can apply pressure to the pressure mechanism 6 through the handle 81 to test the adhesion of the tape.

[0031] like Figure 4 As shown, the pressure feedback mechanism 7 includes a scale rod 71 fixedly disposed in the middle of the upper end face of the substrate 61, in which a measuring slide 72 is installed with sliding friction connection. When the measuring slide 72 slides, the scale on the corresponding scale rod 71 changes synchronously. When the compression spring 64 is gradually compressed and deformed, the anti-detachment cap 65 will move upward relative to the substrate 61 and gradually lift the measuring slide 72. The height to which the measuring slide 72 is lifted is positively correlated with the maximum elastic force of the compression spring 64. The maximum elastic force of the compression spring 64 corresponds to the maximum pressure it applies to the tape, and also corresponds to the maximum value of the tape adhesion force. The maximum height of the measuring slide 72 can be read through the scale on the scale rod 71.

[0032] like Figure 2 As shown, the adhesive board 3 includes a board body 31, and a cutting groove 32 is provided on the rear side of its upper end face. The cutting groove 32 can facilitate the tester to cut off excess tape, so as to ensure that the adhesion area of ​​the tape is consistent in each test. The front end of the upper end face is processed to form an anti-stick chamfer 33, which can prevent the tape from sticking to the front end face of the board body 31 and affecting the normal conduct of the test.

[0033] The working principle and usage process of this utility model:

[0034] The tape testing mechanism is equipped with two sets of rotatable adhesive plates 3, which can be fixed at certain tilt angles under the action of the angle locking mechanism 4. During measurement, the two ends of the tape are bonded to the adhesive plates 3, and the pressure mechanism 6 applies downward pressure to the middle of the tape, thereby generating tension at both ends of the tape and measuring the magnitude of its adhesive force. Based on the above scheme, the measurement conditions of different tension angles can be simulated by combining the tilt angle adjustment of the adhesive plates 3 with the length adjustment of the tape, so that the testing mechanism can complete the testing tasks under various working conditions.

[0035] The angle locking mechanism 4 works as follows: a hexagonal rod 42 is fixedly connected to the end of the rotating shaft of the adhesive plate 3, and a locking cover 43 is slidably sleeved on it. The locking cover 43 can be sleeved on the mating cylinder 41 and locked with it. At this time, the locking cover 43 cannot rotate relative to the mating cylinder 41, and the locking cover 43 cannot rotate relative to the hexagonal rod 42. That is, the rotating shaft cannot rotate, so the adhesive plate 3 can be fixed at a special angle.

[0036] In addition, the overall structure of the mechanism is simple and does not require the use of electrical equipment for driving. The pressure applying mechanism 6 and the pressure feedback mechanism 7 are both composed of simple structures. The pressure feedback mechanism 7 can quantify the maximum downward pressure applied by the pressure applying mechanism 6 during the downward pressing process, thereby determining the magnitude of the adhesive force of the tape being tested, and realizing the detection of the adhesive force without the use of force sensors.

[0037] When pressure is applied to the tape by the pressure mechanism 6, the compression spring 64 gradually deforms under pressure. At the same time, the anti-detachment cap 65 moves upward relative to the base plate 61 and gradually lifts the measuring slider 72. The height to which the measuring slider 72 is lifted is positively correlated with the maximum elastic force of the compression spring 64. The maximum elastic force of the compression spring 64 corresponds to the maximum pressure it applies to the tape, and also corresponds to the maximum value of the tape's adhesive force. The maximum height of the measuring slider 72 can be read through the scale on the scale rod 71.

[0038] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A high tack BOPP tape adhesion testing mechanism, characterized by, The utility model relates to a test door frame angle locking mechanism and pressure feedback mechanism, and belongs to the technical field of test door frame. It includes: The bottom plate (1) is equipped with support frame (2) at both ends, and is equipped with test door frame (5) in the middle; The adhesive plate (3) is installed on the support frame (2) and is rotatably connected with the rotating shaft, and the support frame (2) is equipped with angle locking mechanism (4), which is used to lock the adhesive plate (3) at a certain angle; The pressing mechanism (6) is slidably arranged in the support frame (2) to apply pressure to the middle of the adhesive tape; 2. The high tack BOPP tape adhesion testing mechanism according to claim 1, wherein: The pressure feedback mechanism (7) can measure the maximum pressure applied by the pressing mechanism (6) during the pressing process. The angle locking mechanism (4) includes a matching cylinder (41) fixedly arranged on the support frame (2), and a plurality of clamping grooves arranged in a circumferential array are formed in the matching cylinder (41); 3. The high tack BOPP tape adhesion testing mechanism of claim 2, wherein: The end of the rotating shaft is fixedly connected with a hexagonal rod (42), and a locking cover cylinder (43) is slidably arranged on the hexagonal rod (42), which can be sleeved on the matching cylinder (41) and clamped with it.

4. The high tack BOPP tape adhesion testing mechanism of claim 1, wherein: The inner wall of the front cylinder mouth of the locking cover cylinder (43) is fixedly provided with a clamping rib (431) corresponding to the clamping groove, and the rear end of the locking cover cylinder (43) is provided with a hexagonal hole (432) corresponding to the hexagonal rod (42). The pressing mechanism (6) includes a base plate (61) having a plurality of sliding rods (62) slidably connected therein, a pressing plate (63) fixedly connected to the bottom end of the sliding rod (62), and a anti-loose cap (65) fixedly connected to the top end of the sliding rod (62); 5. The high tack BOPP tape adhesion testing mechanism of claim 4, wherein: The compression spring (64) is sleeved on the sliding rod (62), and the two ends thereof abut against the base plate (61) and the pressing plate (63) respectively.

6. The high tack BOPP tape adhesion testing mechanism of claim 4, wherein: The pressure feedback mechanism (7) includes a scale rod (71) fixedly arranged in the middle of the upper end face of the base plate (61), and a sliding friction connected measuring slide (72) is installed in the scale rod (71), when the measuring slide (72) slides, the scale on the corresponding scale rod (71) changes synchronously. The base plate (61) is provided with a gripping mechanism (8) at both ends, which includes a handle (81), and the handle (81) is fixedly connected with the base plate (61) through a sliding block (82); 7. The high tack BOPP tape adhesion testing mechanism of claim 1, wherein: The test door frame (5) includes a U-shaped frame (51), and a sliding groove (52) with the same size as the sliding block (82) is formed in the two sides of the U-shaped frame (51), and the sliding block (82) is slidably arranged in the sliding groove (52).

8. The high tack BOPP tape adhesion testing mechanism of claim 2, wherein: The adhesive plate (3) includes a plate body (31), and a cutting groove (32) is formed in the rear side of the upper end face of the plate body (31), and an anti-sticking chamfer (33) is formed at the front end of the upper end face. The outer end of the hexagonal rod (42) is threadedly connected with an extrusion end piece (45), and the hexagonal rod (42) is sleeved with an anti-loose spring (44), and the two ends thereof abut against the locking cover cylinder (43) and the extrusion end piece (45) respectively.

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