A performance testing device for a bopet release film

Abstract

The utility model discloses a kind of performance testing device of BOPET release film research and development, it is related to BOPET release film research and development technical field, including tensile testing machine and control panel, the side opposite to control panel and tensile testing machine is fixedly connected with clamping mechanism, the clamping mechanism includes support plate and accommodating cylinder, the bottom of support plate is fixedly connected with accommodating cylinder, and the front side and the back of inside are all provided with clamping assembly, the inner chamber of accommodating cylinder is provided with the control assembly for cooperation with clamping assembly. The utility model is through being provided with clamping mechanism, the fixture of existing tensile testing machine has solved in use, mostly relies on artificial locking, it is tedious to operate and time-consuming and laborious, and in detection process, it cannot be automatically enhanced clamping intensity according to sample stress condition, prone to leading to detection object to slip, the problem of affecting the stability and accuracy of test.

Description

Technical Field

[0001] This utility model relates to the field of BOPET release film research and development technology, specifically a performance testing device for BOPET release film research and development. Background Technology

[0002] BOPET release film, with its excellent high temperature resistance, weather resistance and smooth surface properties, is widely used in packaging, electronic component manufacturing, printing plate making and other industries. Its mechanical properties directly determine the performance of the end product. Therefore, in the research and development process, it is necessary to optimize the formula and production process through precise performance testing. As the core equipment for testing the mechanical properties of materials, the clamping stability and ease of operation of the tensile testing machine are the key to ensuring the validity of the test data.

[0003] The problem with existing technology is that the clamps of existing tensile testing machines mostly rely on manual locking during use, which is cumbersome, time-consuming and labor-intensive. Furthermore, they cannot automatically increase the clamping force according to the stress on the sample during the testing process, which can easily lead to slippage of the test object and affect the stability and accuracy of the test. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a performance testing device for BOPET release film, which has the advantage of automatically adjusting the clamping force. This solves the problems of existing tensile testing machines where the clamps mostly rely on manual locking, which is cumbersome, time-consuming, and labor-intensive. Furthermore, the clamping force cannot be automatically increased according to the force on the sample during the testing process, which can easily lead to slippage of the test object and affect the stability and accuracy of the test.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a performance testing device for the development of BOPET release film, comprising a tensile testing machine and a control board, wherein clamping mechanisms are fixedly connected to the control board on the opposite side of the tensile testing machine.

[0006] The clamping mechanism includes a support plate and a receiving cylinder. The bottom of the support plate is fixedly connected to the receiving cylinder, and clamping components are provided on the front and rear sides of the inner side. The inner cavity of the receiving cylinder is provided with a control component that works in conjunction with the clamping components.

[0007] The two accommodating cylinders are respectively fixedly connected to the control plate and the tensile testing machine, and openings are provided on the front and rear sides of the inner wall.

[0008] As a preferred embodiment of the present invention, the clamping assembly includes a trapezoidal block, the inclined surface of which is provided with a receiving groove, and the inner cavity of the receiving groove is provided with a clamping block.

[0009] In a preferred embodiment of this utility model, the trapezoidal block is in contact with the inner wall of the support plate on the side closest to the inner wall of the support plate, while the left and right sides are fixedly connected with first sliders. The inclined surface of the rear side of the clamping block is in contact with the inclined surface of the inner wall of the receiving groove, and the left and right sides are fixedly connected with second sliders. The front horizontal surface is fixedly connected with a rubber pad.

[0010] As a preferred embodiment of the present invention, the support plate has a first sliding groove on both the left and right sides of its inner wall, and the side of the first slider away from the trapezoidal block is slidably connected to the first sliding groove.

[0011] The inner wall of the receiving groove is provided with a second sliding groove on both the left and right sides, and the side of the second slider away from the clamping block is slidably connected to the second sliding groove.

[0012] As a preferred embodiment of this utility model, the bottom of the trapezoidal block is fixedly connected to an extrusion block, and extrusion holes are provided on the left and right sides of the inner wall of the extrusion block.

[0013] As a preferred embodiment of this utility model, the control component includes an electric cylinder, the bottom of which is fixedly connected to the inner wall of the accommodating cylinder, and the top output shaft is fixedly connected to a lifting plate. The front and rear sides of the outer surface of the lifting plate are both fixedly connected to transmission plates.

[0014] As a preferred embodiment of this utility model, the side of the transmission plate away from the lifting plate passes through the opening and extends to the inside of the extrusion block, and extrusion columns are fixedly connected to both the left and right sides. The side of the extrusion column away from the transmission plate passes through the extrusion hole and extends to the inner cavity of the extrusion hole, contacting the inner wall of the extrusion hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model solves the problems of existing tensile testing machines where clamps mostly rely on manual locking, which is cumbersome, time-consuming, and labor-intensive. Furthermore, the clamping force cannot be automatically increased according to the sample's stress during testing, easily leading to slippage and affecting the stability and accuracy of the test. This new model achieves automatic locking and adaptive clamping force adjustment. During testing, the clamping force can be increased according to changes in the sample's stress, preventing slippage and significantly enhancing the stability, reliability, and efficiency of the test.

[0017] 2. This utility model achieves adaptive enhancement of clamping force by setting a clamping component, ensuring no slippage during testing, and is suitable for testing release films of different thicknesses. When the release film is stretched, a vertical tensile force is applied to the clamping block. The inclined surface of the rear side of the clamping block cooperates with the inclined surface of the inner wall of the receiving groove, so that the clamping block will move inward along the second sliding groove after being subjected to force, automatically increasing the clamping force. The greater the tensile force, the tighter the clamping, thus preventing the release film from slipping.

[0018] The trapezoidal block is slidably connected to the first slide groove via the first slider, and the clamping block is slidably connected to the second slide groove via the second slider, ensuring that the force is balanced during clamping without deviation or tilting. The rubber pad on the front side of the clamping block increases the friction with the release film, while avoiding hard contact that could scratch the surface of the film.

[0019] 3. This utility model achieves automatic locking and controllable clamping force by setting up control components. The electric cylinder drives the lifting plate to descend, which drives the transmission plate and the extrusion column to move synchronously. The extrusion column pushes the extrusion block and the trapezoidal block to move laterally through the extrusion hole, thereby driving the clamping block to clamp the release film. No manual locking is required, and a single person can complete the operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the control component structure;

[0022] Figure 3 This is a schematic diagram of the support plate structure;

[0023] Figure 4 This is a schematic diagram of the clamping assembly structure.

[0024] In the diagram: 1. Tensile testing machine; 2. Control panel; 3. Clamping mechanism; 4. Opening; 5. First slider; 6. Second slider; 7. Rubber pad; 8. First slide groove; 9. Second slide groove; 10. Extrusion block; 11. Extrusion hole; 12. Extrusion column; 31. Support plate; 32. Receiving cylinder; 33. Clamping assembly; 34. Control assembly; 331. Trapezoidal block; 332. Receiving groove; 333. Clamping block; 341. Electric cylinder; 342. Lifting plate; 343. Transmission plate. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a performance testing device for the development of BOPET release film, including a tensile testing machine 1 and a control board 2. Clamping mechanisms 3 are fixedly connected to both the control board 2 and the tensile testing machine 1 on opposite sides.

[0031] The clamping mechanism 3 includes a support plate 31 and a receiving cylinder 32. The bottom of the support plate 31 is fixedly connected to the receiving cylinder 32, and clamping components 33 are provided on the front and rear sides of the inner side. The inner cavity of the receiving cylinder 32 is provided with a control component 34 that works in conjunction with the clamping components 33.

[0032] The two accommodating cylinders 32 are fixedly connected to the control plate 2 and the tensile testing machine 1 respectively, and openings 4 are provided on the front and rear sides of the inner wall.

[0033] Specifically, by setting up the clamping mechanism 3, the problems of existing tensile testing machines 1, which mostly rely on manual locking during use, are solved. This is cumbersome, time-consuming, and labor-intensive. Furthermore, the clamping force cannot be automatically increased according to the force on the sample during the testing process, which can easily lead to slippage of the test object and affect the stability and accuracy of the test. The new mechanism achieves automatic locking and adaptive adjustment of clamping force. During the testing process, the clamping force can be increased according to the changes in the force on the sample to avoid slippage, which significantly enhances the stability, reliability, and efficiency of the test.

[0034] Furthermore, the two ends of the BOPET release film sample are placed between the clamping components 33, the control component 34 is activated, and the clamping components 33 are driven to automatically clamp the sample. When the tensile testing machine 1 starts the tensile test, the sample is subjected to force and generates tension. The clamping components 33 automatically increase the clamping force as the tension increases to prevent the sample from slipping. After the test is completed, the control component 34 reverses its action, the clamping components 33 are released, and the sample is taken out.

[0035] Example 2

[0036] In the second embodiment of this utility model, the clamping component 33 includes a trapezoidal block 331, the inclined surface of the trapezoidal block 331 is provided with a receiving groove 332, and the inner cavity of the receiving groove 332 is provided with a clamping block 333.

[0037] The trapezoidal block 331 is in contact with the inner wall of the support plate 31 on one side, while the left and right sides are fixedly connected to the first slider 5. The inclined surface of the rear side of the clamping block 333 is in contact with the inclined surface of the inner wall of the receiving groove 332, and the left and right sides are fixedly connected to the second slider 6, while the front horizontal surface is fixedly connected to the rubber pad 7.

[0038] The support plate 31 has first sliding grooves 8 on both the left and right sides of its inner wall, and the side of the first slider 5 away from the trapezoidal block 331 is slidably connected to the first sliding groove 8.

[0039] The inner wall of the receiving groove 332 is provided with a second sliding groove 9 on both the left and right sides, and the side of the second slider 6 away from the clamping block 333 is slidably connected to the second sliding groove 9.

[0040] The bottom of the trapezoidal block 331 is fixedly connected to the extrusion block 10, and extrusion holes 11 are provided on the left and right sides of the inner wall of the extrusion block 10.

[0041] Specifically, by setting the clamping component 33, the clamping force is adaptively enhanced to ensure no slippage during the test and to adapt to the test of release films of different thicknesses. When the release film is stretched, a vertical tension is applied to the clamping block 333. The inclined surface of the rear side of the clamping block 333 cooperates with the inclined surface of the inner wall of the receiving groove 332, so that the clamping block 333 will move inward along the second sliding groove 9 after being subjected to force, automatically increasing the clamping force. The greater the tension, the tighter the clamping, thus preventing the release film from slipping.

[0042] Trapezoidal block 331 is slidably connected to first slide groove 8 via first slider 5, and clamping block 333 is slidably connected to second slide groove 9 via second slider 6, ensuring balanced force during clamping without deviation or tilting. Rubber pad 7 on the front side of clamping block 333 increases friction with release film while avoiding hard contact that could scratch the film surface.

[0043] Furthermore, in the initial state, the clamping block 333 is located at the bottom of the cavity of the receiving groove 332, with a gap in the middle to facilitate the placement of the sample. When the control component 34 drives the trapezoidal block 331 to move laterally, the clamping block 333 moves synchronously with the trapezoidal block 331. The clamping blocks 333 on both sides gradually approach each other, and the rubber pad 7 contacts and clamps the sample surface.

[0044] When the tensile testing machine 1 stretches the specimen, the specimen applies a vertical tensile force to the clamping block 333. Due to the fit between the rear inclined surface of the clamping block 333 and the inner wall inclined surface of the receiving groove 332, the tensile force will generate a horizontal inward component force, which pushes the clamping block 333 to move along the second sliding groove 9 to the top of the receiving groove 332. The clamping force increases synchronously. The greater the force on the specimen, the stronger the clamping force, until the specimen breaks or the test is completed, reducing the risk of slippage. After the test, the trapezoidal block 331 moves downward, and the clamping block 333 resets under the action of gravity, releasing the specimen.

[0045] Example 3

[0046] In the third embodiment of this utility model, the control component 34 includes an electric cylinder 341. The bottom of the electric cylinder 341 is fixedly connected to the inner wall of the accommodating cylinder 32, and the top output shaft is fixedly connected to a lifting plate 342. The front and rear sides of the outer surface of the lifting plate 342 are both fixedly connected to a transmission plate 343.

[0047] The side of the transmission plate 343 away from the lifting plate 342 passes through the opening 4 and extends to the inside of the extrusion block 10. Extrusion columns 12 are fixedly connected to both the left and right sides. The side of the extrusion column 12 away from the transmission plate 343 passes through the extrusion hole 11 and extends into the inner cavity of the extrusion hole 11, contacting the inner wall of the extrusion hole 11.

[0048] Specifically, by setting the control component 34, automatic locking and controllable clamping force are achieved. The electric cylinder 341 drives the lifting plate 342 to descend, which drives the transmission plate 343 and the extrusion column 12 to move synchronously. The extrusion column 12 pushes the extrusion block 10 and the trapezoidal block 331 to move laterally through the extrusion hole 11, thereby driving the clamping block 333 to clamp the release film. No manual locking is required, and the operation can be completed by a single person.

[0049] Furthermore, when it is necessary to clamp the sample, the electric cylinder 341 is activated, the output shaft retracts and pulls the lifting plate 342 down, the lifting plate 342 drives the transmission plate 343 to move down synchronously, the extrusion columns 12 on both sides of the transmission plate 343 slide along the extrusion hole 11, and apply a lateral thrust to the extrusion block 10. The extrusion block 10 drives the trapezoidal block 331 to move laterally along the first slide groove 8. During the movement of the trapezoidal block 331, the clamping block 333 moves synchronously until the rubber pad 7 is in close contact with the sample surface and generates a preset clamping force. Then the electric cylinder 341 is closed to complete the automatic locking.

[0050] When it is necessary to release the sample, the output shaft of the electric cylinder 341 is extended, which drives the transmission plate 343 and the extrusion column 12 to move upward, pushing the extrusion block 10 and the trapezoidal block 331 to move in opposite directions. The trapezoidal block 331 drives the clamping block 333 away from the sample, thus completing the unlocking.

[0051] Working principle:

[0052] During operation, place both ends of the sample between the fixed end of the tensile testing machine 1 and the two sets of clamping components 33 corresponding to the lifting plate 342, so that the sample is flat and fits the rubber pad 7 of the clamping block 333.

[0053] After placement, the electric cylinder 341 of the control component 34 is activated. The output shaft of the electric cylinder 341 retracts and pulls the lifting plate 342 down, which drives the transmission plate 343 and the extrusion column 12 to move down synchronously. The extrusion column 12 applies a lateral thrust to the extrusion block 10 through the extrusion hole 11, driving the trapezoidal block 331 to move laterally along the first slide groove 8. The trapezoidal block 331 moves closer to the sample through the clamping block 333 driven by the second slider 6. When the rubber pad 7 is in close contact with the sample surface, the electric cylinder 341 is turned off, and the sample is automatically locked.

[0054] After the sample is locked, the tensile testing machine 1 is started. The moving end of the tensile testing machine 1 drives the control plate 2 to slowly move away from the fixed end, applying a continuous tensile force to the sample. The force value and displacement data are collected simultaneously to generate a real-time test curve for analyzing performance indicators such as tensile strength and elongation at break.

[0055] As the tensile force gradually increases, the sample applies an upward pulling force to the clamping block 333. Due to the fit between the rear inclined surface of the clamping block 333 and the inner wall inclined surface of the receiving groove 332, the upward pulling force will decompose into a horizontal inward component, pushing the clamping block 333 to move along the second sliding groove 9 to the top of the receiving groove 332. The clamping force increases synchronously with the increase of the tensile force, and the friction between the rubber pad 7 and the sample surface increases synchronously, effectively preventing the sample from slipping and ensuring that the test process is continuous and stable until the sample breaks or the preset test stroke is reached.

[0056] When the sample breaks or the test stroke ends, the tensile testing machine 1 automatically stops running, starts the electric cylinder 341, and the output shaft extends to push the lifting plate 342 to rise, which drives the transmission plate 343 and the extrusion column 12 to move upward, which drives the extrusion block 10 and the trapezoidal block 331 to move in the opposite direction. The trapezoidal block 331 drives the clamping block 333 to reset outward, the clamping force disappears, the sample is released, and the operator can directly remove the broken sample fragments to complete the test.

[0057] In summary, by setting up clamping mechanism 3, automatic locking and adaptive adjustment of clamping force are achieved. During the testing process, the clamping force can be increased according to the changes in the force on the sample to avoid slippage, which significantly enhances the stability, reliability and efficiency of the test.

[0058] It should be noted that the tensile testing machine and the electric cylinder are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A performance testing device for the development of BOPET release film, comprising a tensile testing machine (1) and a control board (2), characterized in that: The control panel (2) and the side opposite to the tensile testing machine (1) are both fixedly connected to clamping mechanisms (3). The clamping mechanism (3) includes a support plate (31) and a receiving cylinder (32). The bottom of the support plate (31) is fixedly connected to the receiving cylinder (32), and clamping components (33) are provided on the front and rear sides of the inner side. The inner cavity of the receiving cylinder (32) is provided with a control component (34) that works in conjunction with the clamping component (33). The two accommodating cylinders (32) are fixedly connected to the control plate (2) and the tensile testing machine (1) respectively, and openings (4) are provided on the front and rear sides of the inner wall.

2. The performance testing device for the development of BOPET release film according to claim 1, characterized in that: The clamping assembly (33) includes a trapezoidal block (331), the inclined surface of which is provided with a receiving groove (332), and the inner cavity of the receiving groove (332) is provided with a clamping block (333).

3. The performance testing device for the development of BOPET release film according to claim 2, characterized in that: The trapezoidal block (331) is in contact with the inner wall of the support plate (31) on the side closest to the inner wall of the support plate (31), and the first slider (5) is fixedly connected to both the left and right sides. The inclined surface of the back side of the clamping block (333) is in contact with the inclined surface of the inner wall of the receiving groove (332), and the second slider (6) is fixedly connected to both the left and right sides. The horizontal surface on the front side is fixedly connected to a rubber pad (7).

4. The performance testing device for the development of BOPET release film according to claim 3, characterized in that: The support plate (31) has a first sliding groove (8) on both the left and right sides of its inner wall. The first slider (5) is slidably connected to the first sliding groove (8) on the side away from the trapezoidal block (331). The inner wall of the receiving groove (332) is provided with a second sliding groove (9) on both the left and right sides. The side of the second slider (6) away from the clamping block (333) is slidably connected to the second sliding groove (9).

5. The performance testing device for the development of BOPET release film according to claim 4, characterized in that: The bottom of the trapezoidal block (331) is fixedly connected to an extrusion block (10), and extrusion holes (11) are provided on the left and right sides of the inner wall of the extrusion block (10).

6. The performance testing device for the development of BOPET release film according to claim 1, characterized in that: The control component (34) includes an electric cylinder (341), the bottom of which is fixedly connected to the inner wall of the accommodating cylinder (32), and the top output shaft is fixedly connected to a lifting plate (342). The front and rear sides of the outer surface of the lifting plate (342) are both fixedly connected to a transmission plate (343).

7. The performance testing device for the development of BOPET release film according to claim 6, characterized in that: The transmission plate (343) passes through the opening (4) on the side away from the lifting plate (342) and extends to the inside of the extrusion block (10). Extrusion columns (12) are fixedly connected to both the left and right sides. The side of the extrusion column (12) away from the transmission plate (343) passes through the extrusion hole (11) and extends to the inner cavity of the extrusion hole (11) to contact the inner wall of the extrusion hole (11).

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