A tape adhesion testing device

Abstract

The present invention relates to the field of viscosity testing technology, and in particular to a device for testing the viscosity of adhesive tape, comprising an outer frame and a detector, wherein a hydraulic cylinder is fixedly mounted on the outer frame, a fixed rod is fixedly connected to the driving end of the hydraulic cylinder, a mounting frame with a concave cross section is fixedly connected to the lower end of the fixed rod, two positioning rods are fixedly connected to the mounting frame, a plurality of connecting plates with T-shaped cross sections are slidably mounted on the two positioning rods, and notches are provided on both sides of each connecting plate; two limit assemblies, each of which is used to limit the movement of the connecting plate. The present invention can realize the automatic replacement of the connecting plate, and does not require manual disassembly and replacement of the connecting plate for multiple times. The operation is very convenient, and the continuity during the test is good. It can effectively improve the efficiency of the test device in testing the viscosity of the adhesive tape, and is beneficial to the viscosity test of the adhesive tape.

Description

Technical Field

[0001] The invention relates to the technical field of viscosity testing, and in particular to a device for testing the viscosity of an adhesive tape. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to viscosity testing is also constantly improving. At present, there are many types of tapes on the market, and different tapes are used for different purposes. During the production and processing of tapes, it is necessary to use a viscosity testing device for testing.

[0003] The authorization document with publication number "CN217786866U" discloses a tape viscosity testing device, including a detector, an outer frame is installed on the upper surface of the detector, a hydraulic rod is installed on the inner upper surface of the outer frame, and a pull ring is installed at the bottom end of the hydraulic rod.

[0004] Although the above authorization document solves the problem that conventional types of adhesion testing devices are difficult to fix different adhesive items, it still has the following disadvantages: during the long-term testing of the tape adhesion by the testing device, the connecting plate needs to be manually disassembled and replaced many times, which is very inconvenient to operate and the continuity during the test is poor, resulting in low efficiency of the testing device in testing the tape adhesion, which is not conducive to the adhesion test of the tape. Summary of the invention

[0005] The purpose of the present invention is to solve the following shortcomings in the prior art: during the long-term testing of the tape viscosity by the testing device, it is necessary to manually disassemble and replace the connecting plate many times, which is very inconvenient to operate and the continuity during the test is poor, resulting in low efficiency of the testing device for the tape viscosity test, which is not conducive to the viscosity test of the tape, and a tape viscosity testing device is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A tape viscosity testing device comprises an outer frame and a detector, wherein a hydraulic cylinder is fixedly mounted on the outer frame, a fixing rod is fixedly connected to the driving end of the hydraulic cylinder, a mounting frame with a concave cross section is fixedly connected to the lower end of the fixing rod, two positioning rods are fixedly connected to the mounting frame, a plurality of connecting plates with a T-shaped cross section are slidably mounted on the two positioning rods, and notches are opened on both sides of each connecting plate;

[0008] Two limiting assemblies, each of which is used to limit the movement of the connecting plate, the limiting assemblies comprising a limiting rod slidably arranged on the mounting frame, the positioning rod being provided with a slot for connecting the limiting rod, and the surfaces of one of the connecting plates and the limiting rod being in contact with each other;

[0009] Two extrusion assemblies, each of which is used to adjust the position of the limit rod, the extrusion assembly includes an extrusion rod fixedly mounted on the outer frame, an arc end surface is provided at one end of the extrusion rod away from the inner wall of the outer frame, an opening for connecting the limit rod is opened on the mounting frame, and the limit rod is connected to the inner wall of the opening through a first spring.

[0010] As a preferred embodiment, a transversely arranged fixed frame is fixedly connected inside the outer frame, and two rotating shafts are rotatably connected to the fixed frame. A first torsion spring is sleeved on each of the rotating shafts, one end of the first torsion spring is fixedly connected to the rotating shaft, and the other end of the first torsion spring is fixedly connected to the fixed frame, and a rotating plate is fixedly connected to the rotating shaft.

[0011] As a preferred solution, a rotating block is fixedly connected to one of the rotating shafts, a screw rod is rotatably connected to the inner wall of one side of the outer frame, a second torsion spring is sleeved on the screw rod, one end of the second torsion spring is fixedly connected to the outer surface of the outer frame, the other end of the second torsion spring is fixedly connected to the screw rod, and the screw rod is connected to the rotating block by a pull rope.

[0012] As a preferred solution, a moving block is threadedly connected to the screw rod, and the moving block is slidably connected to an inner wall of one side of the outer frame. A sliding rod is slidably connected to the moving block, and a second spring is sleeved on the sliding rod. One end of the second spring is fixedly connected to the sliding rod, and the other end of the second spring is fixedly connected to the moving block. A scraper strip with a right-angled triangle cross-section is fixedly connected to the upper end of the sliding rod.

[0013] As a preferred solution, a sliding groove is opened on the inner wall of one side of the outer frame, a slider is slidably connected in the sliding groove, a third spring is fixedly connected to the slider, the third spring is fixedly connected to the inner wall of the sliding groove, and an extrusion plate used in conjunction with the slider is fixedly connected to the fixing rod.

[0014] As a preferred solution, one end of the slider is fixedly connected to a fixed block, the fixed block is provided with an extrusion groove with a right-angled trapezoidal cross-section, and the inner wall of one side of the outer frame is fixedly connected to an ear plate with an L-shaped cross-section, and a bending rod is slidably connected to the ear plate.

[0015] As a preferred solution, a material guide block is fixedly connected to the bending rod, an oblique opening is provided on the material guide block, a rectangular opening is provided on the outer frame for the material guide block to pass through, and a collection frame is provided on one side surface of the outer frame.

[0016] As a preferred solution, two mounting blocks are fixedly connected inside the outer frame, each mounting block is rotatably connected to a clamping plate, a return spring is fixedly connected to the clamping plate, and the return spring is fixedly connected to the mounting block.

[0017] As a preferred solution, an airbag and an exhaust pipe are installed on one of the mounting blocks, the airbag and the exhaust pipe are connected, the airbag is filled with compressed gas, and a pressure valve is installed at the connection position between the airbag and the exhaust pipe.

[0018] As a preferred solution, one end of the bending rod is in contact with the inclined surface of the extrusion groove, a fourth spring is sleeved on the bending rod, one end of the fourth spring is fixedly connected to the bending rod, and the other end of the fourth spring is fixedly connected to the ear plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. After one end of the limit rod moves, it will be located directly below the notch and staggered with the positioning plate. Under the action of gravity, the lowest connecting plate will be separated from the positioning rod, realizing the automatic replacement of the connecting plate. There is no need to manually disassemble and replace the connecting plate many times. The operation is very convenient, and the continuity during the test is good. It can effectively improve the efficiency of the test device for the adhesive test of the tape, which is conducive to the adhesive test of the tape;

[0021] 2. When the splint rotates, it will squeeze the airbag, so that the gas inside the airbag is discharged through the exhaust pipe. After the gas is discharged, the air circulation speed on the surface of the tape can be accelerated to prevent impurities in the air from adhering to the tape, so as to facilitate the normal adhesion of the subsequent connecting plate and the tape;

[0022] 3. After the limit rod and the clamp are separated, the clamp will rotate upward under the elastic force of the reset spring. When the two clamps rotate to a horizontal state, the elastic end of the clamp will be in close contact with the surface of the object, thereby effectively preventing the object from moving, so as to better test the adhesiveness of the tape;

[0023] 4. When the scraper moves against the lower surface of the connecting plate, the surface of the connecting plate can be preliminarily processed, making the subsequent cleaning of the connecting plate more convenient. After the lowermost connecting plate is detached, it will fall into the oblique opening of the guide block and slide along the inclined surface of the oblique opening to the collection frame for collection, so as to facilitate the centralized cleaning of the connecting plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front structural schematic diagram of a tape adhesion testing device proposed by the present invention;

[0025] Figure 2A schematic diagram of the top view of a tape adhesion test device proposed by the present invention;

[0026] Figure 3 A schematic diagram of the side structure of a tape adhesion test device proposed by the present invention;

[0027] Figure 4 It is a left-side cross-sectional structural schematic diagram of a tape adhesion testing device proposed by the present invention;

[0028] Figure 5 It is a right side cross-sectional structural schematic diagram of a tape adhesion testing device proposed by the present invention;

[0029] Figure 6 It is a schematic diagram of the partial structure of the side of the fixed frame and the screw rod;

[0030] Figure 7 It is a schematic diagram of the partial structure of the side of the mounting frame and the fixing block;

[0031] Figure 8 It is a schematic diagram of the side structure of the mounting frame and the extrusion rod;

[0032] Fig. 9 It is a schematic diagram of the partial structure of the front side of the mounting frame and the limiting rod;

[0033] Fig.10 It is a schematic diagram of the partial structure of the front side of the connecting plate and the limiting rod;

[0034] Fig.11 It is a schematic diagram of the partial three-dimensional structure of the limiting rod and the first spring.

[0035] In the figure: 1 outer frame, 2 detector, 3 mounting block, 4 exhaust pipe, 5 screw rod, 6 moving block, 7 rotating plate, 8 rotating block, 9 slider, 10 fixed rod, 11 fixed frame, 12 rotating shaft, 13 first torsion spring, 14 mounting frame, 15 connecting plate, 16 clamping plate, 17 airbag, 18 pull rope, 19 limit rod, 20 collecting frame, 21 guide block, 22 ear plate, 23 fixed block, 24 bending rod, 25 third spring, 26 positioning rod, 27 slide rod, 28 second spring, 29 extrusion plate, 30 extrusion groove, 31 fourth spring, 32 extrusion rod, 33 scraper strip, 34 first spring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Reference Figure 1-Figure 11A tape viscosity testing device includes an outer frame 1 and a detector 2. A hydraulic cylinder is fixedly installed on the outer frame 1. The driving end of the hydraulic cylinder is fixedly connected to a fixing rod 10. The lower end of the fixing rod 10 is fixedly connected to a mounting frame 14 with a concave cross-section. Two positioning rods 26 are fixedly connected to the mounting frame 14. A plurality of connecting plates 15 with a T-shaped cross-section are slidably arranged on the two positioning rods 26. Notches are provided on both sides of each connecting plate 15. Two limit assemblies, each of which is used to limit the movement of the connecting plate 15, include a limit rod 19 slidably arranged on the mounting frame 14, and a slot for connecting the limit rod 19 is provided on the positioning rod 26, wherein the surfaces of one connecting plate 15 and the limit rod 19 are in contact with each other.

[0038] Two extrusion assemblies, each of which is used to adjust the position of the limit rod 19, the extrusion assembly includes an extrusion rod 32 fixedly mounted on the outer frame 1, and an arc end surface is provided at one end of the extrusion rod 32 away from the inner wall of the outer frame 1. An opening for connecting the limit rod 19 is opened on the mounting frame 14, and the limit rod 19 is connected to the inner wall of the opening through a first spring 34.

[0039] A transversely arranged fixed frame 11 is fixedly connected inside the outer frame 1, and two rotating shafts 12 are rotatably connected to the fixed frame 11. A first torsion spring 13 is sleeved on each rotating shaft 12, and one end of the first torsion spring 13 is fixedly connected to the rotating shaft 12, and the other end of the first torsion spring 13 is fixedly connected to the fixed frame 11. A rotating plate 7 is fixedly connected to the rotating shaft 12. During the upward movement of the mounting frame 14, it will contact the lower surfaces of the two rotating plates 7 and will move upward together with the lower surfaces of the rotating plates 7. The two rotating plates 7 change from a horizontal state to an eight-shaped setting, and the rotating shaft 12 simultaneously rotates relative to the fixed frame 11, and the first torsion spring 13 is deformed.

[0040] A rotating block 8 is fixedly connected to one of the rotating shafts 12, and a screw rod 5 is rotatably connected to the inner wall of one side of the outer frame 1. A second torsion spring is sleeved on the screw rod 5, one end of the second torsion spring is fixedly connected to the outer surface of the outer frame 1, and the other end of the second torsion spring is fixedly connected to the screw rod 5. The screw rod 5 is connected to the rotating block 8 through a pull rope 18. The length of the rotating block 8 is sufficient. During the rotation of the rotating block 8, under the action of the elastic force of the second torsion spring, the loose pull rope 18 will be wound around the screw rod 5, and the screw rod 5 will rotate relative to the outer frame 1 at the same time, and the moving block 6 threadedly connected to the screw rod 5 will move along the screw rod 5 at the same time.

[0041] A moving block 6 is threadedly connected to the screw rod 5, and the moving block 6 is slidably connected to the inner wall of one side of the outer frame 1. A sliding rod 27 is slidably connected to the moving block 6, and a second spring 28 is sleeved on the sliding rod 27. One end of the second spring 28 is fixedly connected to the sliding rod 27, and the other end of the second spring 28 is fixedly connected to the moving block 6. A scraper bar 33 with a right-angled triangle cross-section is fixedly connected to the upper end of the sliding rod 27. When the sliding rod 27 moves together with the moving block 6, the inclined surface of the scraper bar 33 will contact the surface of the lowermost connecting plate 15. The sliding rod 27 moves downward at the same time and slides relative to the moving block 6. When the scraper bar 33 moves against the lower surface of the connecting plate 15, the surface of the connecting plate 15 can be preliminarily processed.

[0042] A sliding groove is provided on the inner wall of one side of the outer frame 1, and a slider 9 is slidably connected in the sliding groove. A third spring 25 is fixedly connected to the slider 9, and the third spring 25 is fixedly connected to the inner wall of the sliding groove. An extrusion plate 29 used in conjunction with the slider 9 is fixedly connected to the fixing rod 10. During the upward movement of the extrusion plate 29, it will contact the lower surface of the slider 9 and move upward together with the slider 9, and the slider 9 will slide relative to the sliding groove at the same time.

[0043] One end of the slider 9 is fixedly connected to a fixed block 23, and an extrusion groove 30 with a right-angled trapezoidal cross-section is provided on the fixed block 23. An inner wall of one side of the outer frame 1 is fixedly connected to an ear plate 22 with an L-shaped cross-section. A bending rod 24 is slidably connected to the ear plate 22, and one end of the bending rod 24 is in contact with the inclined surface of the extrusion groove 30. A fourth spring 31 is sleeved on the bending rod 24, and one end of the fourth spring 31 is fixedly connected to the bending rod 24, and the other end of the fourth spring 31 is fixedly connected to the ear plate 22. When the fixed block 23 moves together with the slider 9, one end of the bending rod 24 will move against the inclined surface of the extrusion groove 30, thereby causing the bending rod 24 and the ear plate 22 to slide relative to each other. During the movement of the bending rod 24, the guide block 21 will be driven to move together, and a part of the guide block 21 will be located below the mounting frame 14 after moving.

[0044] A guide block 21 is fixedly connected to the bending rod 24, and an oblique opening is provided on the guide block 21. The outer frame 1 is provided with a rectangular opening for the guide block 21 to pass through. A collection frame 20 is provided on one side surface of the outer frame 1. After the lowest connecting plate 15 and the positioning rod 26 are detached, they will fall into the oblique opening of the guide block 21, and slide along the inclined surface of the oblique opening to be collected in the collection frame 20. Two mounting blocks 3 are fixedly connected inside the outer frame 1, and each mounting block 3 is rotatably connected to a splint 16, and a return spring is fixedly connected to the splint 16. The return spring and the mounting block 3 are fixedly connected. During the downward movement of the limit rod 19, the corresponding splint 16 will be squeezed, so that the splint 16 and the mounting block 3 rotate relative to each other.

[0045] An airbag 17 and an exhaust pipe 4 are installed on one of the mounting blocks 3, and the airbag 17 and the exhaust pipe 4 are connected. The airbag 17 is filled with compressed gas, and a pressure valve is installed at the connection position between the airbag 17 and the exhaust pipe 4. When the airbag 17 is pressurized, the internal compressed gas will break through the pressure valve and spray out. During the rotation of one of the clamping plates 16, the airbag 17 will be squeezed so that the gas inside the airbag 17 is discharged through the exhaust pipe 4. After the gas is discharged, the air circulation speed on the surface of the tape can be accelerated to prevent impurities in the air from adhering to the tape, so as to facilitate the normal adhesion of the subsequent connecting plate 15 and the tape.

[0046] In the present invention, when in use, the tape is pasted on the surface of the object to be adhered, and then the object is placed between the two mounting blocks 3. At this time, one end of each clamping plate 16 is in contact with the surface of the object, and the mounting frame 14 is located below the fixed frame 11. Then the hydraulic cylinder drives the fixing rod 10 to move downward, and drives the mounting frame 14 to move downward together. During the downward movement of the two limit rods 19 with an L-shaped cross section, the corresponding clamping plates 16 will be squeezed, so that the clamping plates 16 and the mounting block 3 will rotate relative to each other, and the reset spring (not shown) will be deformed. The two clamping plates 16 are changed from an eight-shaped setting to an inverted eight-shaped setting. Each of the clamping plates 16, which has elasticity at one end close to the object, will be deformed in the process of pressing against the surface of the object and rotating. During the rotation of one of the clamping plates 16, the air bag 17 will be squeezed, so that the gas inside the air bag 17 is discharged through the exhaust pipe 4. After the gas is discharged, the air circulation speed on the surface of the tape can be accelerated to prevent impurities mixed in the air from adhering to the tape, so as to facilitate the normal adhesion of the subsequent connecting plate 15 and the tape.

[0047] When the connecting plate 15 moves downward and adheres to the tape, the hydraulic cylinder drives the fixing rod 10 to move upward, and the mounting frame 14 and the connecting plate 15 move upward at the same time. The viscosity value of the tape can be obtained through the detector 2 (wherein the detector 2 is a prior art and its working principle is not described in detail). During the upward movement of the limit rod 19, it will be separated from the clamping plate 16 again. Under the elastic force of the reset spring, the clamping plate 16 will rotate upward. When the two clamping plates 16 rotate to a horizontal state, the elastic end of the clamping plate 16 will be in close contact with the surface of the object, thereby effectively preventing the object from moving, so as to better test the viscosity of the tape.

[0048] When the connecting plate 15 is used many times and needs to be replaced, the hydraulic cylinder drives the fixed rod 10 to move up. During the upward movement of the mounting frame 14, it will contact the lower surfaces of the two rotating plates 7. The fixed rod 10 is located between the two rotating plates 7. During the continuous movement of the mounting frame 14, it will move up together with the lower surfaces of the rotating plates 7. The two rotating plates 7 change from a horizontal state to an eight-shaped setting. The rotating shaft 12 rotates relative to the fixed frame 11 at the same time. The first torsion spring 13 is deformed. The length of the rotating block 8 is sufficient. During the rotation of the rotating block 8, since one end of the pull rope 18 is fixedly connected to the rotating block 8, the pull rope 18 is also wrapped around the screw rod 5. Under the elastic force of the second torsion spring, the loose pull rope 18 will be wrapped around the screw rod 5. The screw rod 5 rotates relative to the outer frame 1 at the same time. The moving block 6 threadedly connected to the screw rod 5 moves along the screw rod 5 at the same time, and slides relative to the inner wall of one side of the outer frame 1. A part of the screw rod 5 is provided with a thread.

[0049] When the sliding bar 27 moves with the moving block 6, the inclined surface of the scraper strip 33 will contact the surface of the lowermost connecting plate 15, and the sliding bar 27 will move downward at the same time and slide relatively with the moving block 6. The second spring 28 will be deformed, and the scraper strip 33 will move against the lower surface of the connecting plate 15 during the movement, and the surface of the connecting plate 15 can be preliminarily processed. After the scraper strip 33 moves, it will move from one side of the mounting bracket 14 to the other side. When the extrusion plate 29 moves upward, it will contact the lower surface of the slider 9 and move upward against the slider 9. The slider 9 will slide relatively with the slide groove at the same time, and the third spring 25 will be deformed. When the fixed block 23 moves with the slider 9, one end of the bending rod 24 will move against the inclined surface of the extrusion groove 30, thereby causing the bending rod 24 and the ear plate 22 to slide relatively. The fourth spring 31 will be deformed. When the bending rod 24 moves, it will drive the guide block 21 to move together, and a part of the guide block 21 will be located below the mounting bracket 14 after moving.

[0050] As the mounting frame 14 continues to move upward as the fixing rod 10 continues to move, the two limit rods 19 will contact the arc end surfaces of the corresponding extrusion rods 32, and the limit rods 19 will slide relative to the mounting frame 14 at the same time. Since one end of the first spring 34 is fixedly connected to the limit rod 19, and the other end of the first spring 34 is fixedly connected to the inner wall of the opening, the first spring 34 is deformed, and the two limit rods 19 will disengage from the slots on the positioning rod 26 after moving, and one end of the limit rod 19 will be located directly below the notch after moving. At this time, the limit rod 19 cannot limit the downward movement of the connecting plate 15, and the lowest connecting plate 15 will disengage from the positioning rod 26 under the action of gravity, thereby realizing automatic replacement of the connecting plate 15.

[0051] Part of the surface of the positioning rod 26 is relatively rough. The friction force between the positioning rod 26 and all the connecting plates 15 except the lowest connecting plate 15 is relatively large when in contact, which can effectively prevent all the connecting plates 15 except the lowest from moving too fast. At this time, the moving distance of the slider 9 reaches the maximum, and the deformation of the third spring 25 reaches the maximum. The hydraulic cylinder immediately drives the fixing rod 10 to move downward, and the limiting rod 19 will be separated from the extrusion rod 32 again. The two limiting rods 19 return to the initial position under the elastic force of the first spring 34 and are connected to the slot, which can prevent other connecting plates 15 from separating from the positioning rod 26. After the separation, the lowest connecting plate 15 will fall into the oblique mouth of the guide block 21 and slide along the inclined surface of the oblique mouth to be collected in the collection frame 20. There is no need to manually disassemble and replace the connecting plate 15 many times, and the operation is very convenient. The continuity during testing is good, which can effectively improve the efficiency of the test device for the adhesive test of the tape, which is beneficial to the adhesive test of the tape.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tape viscosity testing device, characterized in that: It comprises an outer frame and a detector, wherein a hydraulic cylinder is fixedly mounted on the outer frame, a fixing rod is fixedly connected to the driving end of the hydraulic cylinder, a mounting frame with a concave cross section is fixedly connected to the lower end of the fixing rod, two positioning rods are fixedly connected to the mounting frame, a plurality of connecting plates with a T-shaped cross section are slidably mounted on the two positioning rods, and notches are opened on both sides of each connecting plate; Two limiting assemblies, each of which is used to limit the movement of the connecting plate, the limiting assemblies comprising a limiting rod slidably arranged on the mounting frame, the positioning rod being provided with a slot for connecting the limiting rod, and the surfaces of one of the connecting plates and the limiting rod being in contact with each other; Two extrusion assemblies, each of which is used to adjust the position of the limit rod, the extrusion assembly includes an extrusion rod fixedly mounted on the outer frame, an end of the extrusion rod away from the inner wall of the outer frame is provided with an arc end surface, the mounting frame is provided with an opening for connecting to the limit rod, and the limit rod is connected to the inner wall of the opening through a first spring; A transversely arranged fixed frame is fixedly connected inside the outer frame, two rotating shafts are rotatably connected to the fixed frame, a first torsion spring is sleeved on each rotating shaft, one end of the first torsion spring is fixedly connected to the rotating shaft, the other end of the first torsion spring is fixedly connected to the fixed frame, and a rotating plate is fixedly connected to the rotating shaft; A rotating block is fixedly connected to one of the rotating shafts, a screw rod is rotatably connected to an inner wall of one side of the outer frame, a second torsion spring is sleeved on the screw rod, one end of the second torsion spring is fixedly connected to the outer surface of the outer frame, the other end of the second torsion spring is fixedly connected to the screw rod, and the screw rod is connected to the rotating block via a pull rope; A moving block is threadedly connected to the screw rod, and the moving block is slidably connected to an inner wall of one side of the outer frame. A sliding rod is slidably connected to the moving block, and a second spring is sleeved on the sliding rod. One end of the second spring is fixedly connected to the sliding rod, and the other end of the second spring is fixedly connected to the moving block. A scraper strip with a right-angled triangle cross-section is fixedly connected to the upper end of the sliding rod.

2. The tape adhesion testing device according to claim 1, characterized in that: A sliding groove is provided on the inner wall of one side of the outer frame, a slider is slidably connected in the sliding groove, a third spring is fixedly connected to the slider, the third spring is fixedly connected to the inner wall of the sliding groove, and an extrusion plate used in conjunction with the slider is fixedly connected to the fixing rod.

3. The tape adhesion testing device according to claim 2, characterized in that: One end of the slider is fixedly connected to a fixed block, the fixed block is provided with an extrusion groove with a right-angle trapezoidal cross section, an inner wall of one side of the outer frame is fixedly connected to an ear plate with an L-shaped cross section, and a bending rod is slidably connected to the ear plate.

4. The tape adhesion testing device according to claim 3, characterized in that: A material guide block is fixedly connected to the bending rod, an oblique opening is provided on the material guide block, a rectangular opening is provided on the outer frame for the material guide block to pass through, and a collecting frame is provided on one side surface of the outer frame.

5. The tape adhesion testing device according to claim 1, characterized in that: Two mounting blocks are fixedly connected inside the outer frame, each mounting block is rotatably connected with a clamping plate, a return spring is fixedly connected to the clamping plate, and the return spring is fixedly connected to the mounting block.

6. The tape adhesion testing device according to claim 5, characterized in that: An air bag and an exhaust pipe are installed on one of the mounting blocks. The air bag and the exhaust pipe are connected. The air bag is filled with compressed gas, and a pressure valve is installed at the connection position between the air bag and the exhaust pipe.

7. The adhesive tape adhesion testing device according to claim 3, characterized in that: One end of the bending rod is in contact with the inclined surface of the extrusion groove, and a fourth spring is sleeved on the bending rod. One end of the fourth spring is fixedly connected to the bending rod, and the other end of the fourth spring is fixedly connected to the ear plate.

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