Assembly for testing friction coefficient of polyester film
By designing the combined structure of the slider and the clamping piece, the accuracy of the polyester film friction coefficient test is achieved, the problem of inaccurate data of the existing test components is solved, and the consistency of the test direction is ensured.
Patent Information
- Application Number
- CN202422278590.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The test data accuracy of the existing polyester film friction coefficient test components is low, and it is impossible to ensure that the friction direction of the upper and lower sample blocks of the film is consistent with the film production stretching direction, resulting in inaccurate test data.
A test assembly including a slider, a first clamping piece, a second clamping piece and a handle was designed. The polyester film was fixed by the clamping piece, and the slider was used to slide relative to the fixed block, so that the polyester film was subjected to friction testing in the MD direction to ensure the test accuracy.
The accuracy of polyester film friction coefficient testing is improved, ensuring that the film friction direction is consistent with the production stretching direction, and improving the accuracy of test data.
Smart Images
Figure CN223308069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of friction coefficient testing equipment, and more specifically to a component for testing the friction coefficient of a polyester film. Background Art
[0002] For BOPET film products, the friction coefficient is an important control item and provides guidance for the performance of sample rolls and finished products.
[0003] Conventional coefficient of friction testers are equipped with sliders with square bottoms and connecting rods. In this case, the film can only be fixed to the slider with tape or by independently pressing the slider onto the film for measurement. This method of securing the sample is time-consuming, cannot avoid relative friction between the slider and the sample, and cannot ensure that the friction direction of the upper and lower sample blocks of the film is consistent with the film's production stretching direction. In other words, it cannot guarantee that the friction test is performed in the MD direction, resulting in low test data accuracy. Utility Model Content
[0004] (1) Technical issues to be solved
[0005] The technical problem to be solved by the utility model is that the accuracy of test data of an existing polyester film friction coefficient test component is low.
[0006] (2) Technical solution
[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0008] The utility model provides a component for testing the coefficient of friction of a polyester film, comprising a slider, a first clamping member, a second clamping member, a handle and a friction coefficient tester; the first clamping member is provided at one end of the slider, and is used for clamping one end of the first polyester film; the second clamping member is provided at the other end of the slider, and is used for clamping the other end of the first polyester film; the handle is fixedly connected to the slider; the friction coefficient tester has a fixed block for fixing the second polyester film; when in use, the slider is used to slide relative to the fixed block to cause the first polyester film to rub against the second polyester film.
[0009] Preferably, the first clamping member includes a first elastic sheet and a first locking member, a first accommodating space for placing the polyester film is formed between the first elastic sheet and the slider, and the first locking member is fastened to connect the first elastic sheet and the slider so that the first elastic sheet and the slider clamp and fix the first polyester film.
[0010] Preferably, the first elastic piece includes a first clamping piece and a second clamping piece spaced apart, the first locking member includes a first fastener and a second fastener, the first fastener fastens the first clamping piece and the slider, and the second fastener fastens the second clamping piece and the slider.
[0011] Preferably, the first fastener and the second fastener have the same structure, and the first fastener includes a first screw and a first spring sleeved outside the first screw, one end of the first spring abuts against the first clamping piece, and the other end of the first spring abuts against the slider, and the first screw threadably connects the first clamping piece and the slider.
[0012] Preferably, the second clamping member includes a second elastic sheet and a second locking member, a second accommodating space for placing the polyester film is formed between the second elastic sheet and the slider, and the second locking member is fastened to connect the second elastic sheet and the slider so that the second elastic sheet and the slider clamp and fix the first polyester film.
[0013] Preferably, the second elastic piece includes a third clamping piece and a fourth clamping piece arranged at intervals, and the second locking member includes a third fastener and a fourth fastener, the third fastener fastens the third clamping piece and the slider, and the fourth fastener fastens the fourth clamping piece and the slider.
[0014] Preferably, the third fastener and the fourth fastener have the same structure, the third fastener includes a second screw and a second spring sleeved outside the second screw, one end of the second spring abuts against the third clamping piece, the other end of the second spring abuts against the slider, and the second screw is threadedly connected to the third clamping piece and the slider.
[0015] Preferably, the handle includes a traction rod, a cross rod and a first vertical rod, one end of the first vertical rod is fixedly connected to the slider, the other end of the first vertical rod is fixedly connected to the cross rod, and the end of the cross rod facing away from the first vertical rod is fixedly connected to the traction rod to form a placement space for hand holding between the traction rod and the first vertical rod.
[0016] Preferably, the handle further includes a second vertical rod, one end of the second vertical rod is fixedly connected to the slider, and the other end of the second vertical rod is fixedly connected to the cross rod.
[0017] (3) Beneficial effects
[0018] The above technical solution of the present utility model has at least the following advantages:
[0019] In the present invention, a first clamping member is provided at one end of the slider for clamping one end of the first polyester film; a second clamping member is provided at the other end of the slider for clamping the other end of the first polyester film, thereby clamping and fixing the first polyester film on the slider so that no relative sliding occurs between the first polyester film and the slider; a handle is fixedly connected to the slider; the friction coefficient tester has a fixed block for fixing the second polyester film; when in use, the slider is used to slide relative to the fixed block so that the first polyester film and the second polyester film rub against each other, and the slider is driven to move by pulling the handle to drive the MD of the first polyester film to perform friction testing along the MD direction of the second polyester film, thereby ensuring the accuracy of the film friction coefficient test and improving the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 This is a schematic structural diagram of a polyester film friction coefficient testing assembly provided in Example 1 of the present invention.
[0022] Figure 2 It is a side view of a polyester film friction coefficient testing assembly provided in Example 1 of the present invention.
[0023] Figure 3 This is a schematic structural diagram of a polyester film friction coefficient testing assembly provided in Example 2 of the present utility model.
[0024] The reference numerals in the figures are:
[0025] 1. Slider; 2. First clamping member; 3. Second clamping member; 4. Handle; 21. First elastic sheet; 22. First locking member; 23. First accommodating space; 211. First clamping sheet; 212. Second clamping sheet; 221. First fastener; 2211. First spring; 31. Second elastic sheet; 32. Second locking member; 33. Second accommodating space; 311. Third clamping sheet; 312. Fourth clamping sheet; 321. Third fastener; 322. Fourth fastener; 3211. Second spring; 41. Drawbar; 42. Crossbar; 43. First vertical bar; 44. Placement space; 45. Second vertical bar. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0027] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.
[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate relative importance or the number of technical features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined. The following is a more detailed description of the specific implementation of this utility model in conjunction with specific embodiments:
[0030] like Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a component for testing the friction coefficient of a polyester film, comprising a slider 1, a first clamping member 2, a second clamping member 3, a handle 4 and a friction coefficient tester (not shown); the first clamping member 2 is provided at one end of the slider 1, for clamping one end of a first polyester film (not shown); the second clamping member 3 is provided at the other end of the slider 1, for clamping the other end of the first polyester film; the handle 4 is fixedly connected to the slider 1; the friction coefficient tester has a fixed block (not shown) for fixing the second polyester film (not shown); when in use, the slider 1 is used to slide relative to the fixed block to cause the first polyester film to rub against the second polyester film.
[0031] As one of the optional implementations of this embodiment, the first clamping member 2 includes a first elastic sheet 21 and a first locking member 22. A first accommodating space 23 for placing the polyester film is formed between the first elastic sheet 21 and the slider 1. The first locking member 22 is fastened to connect the first elastic sheet 21 and the slider 1 so that the first elastic sheet 21 and the slider 1 clamp and fix the first polyester film.
[0032] As one of the optional implementations of this embodiment, the second clamping member 3 includes a second elastic sheet 31 and a second locking member 32. A second accommodating space 33 for placing the polyester film is formed between the second elastic sheet 31 and the slider 1. The second locking member 32 is fastened to connect the second elastic sheet 31 and the slider 1 so that the second elastic sheet 31 and the slider 1 clamp and fix the first polyester film.
[0033] like Figure 1 and Figure 2 The embodiment 1 shown is based on the embodiment 1, and the specific implementation process of this embodiment is as follows:
[0034] First, loosen the first locking member 22 and the second locking member 32 to keep the first elastic sheet 21 and the second elastic sheet 31 in an open state, then place the left side of one end of the first polyester film in the first accommodating space 23, and the right side of one end of the first polyester film in the second accommodating space 33, wrap the first polyester film around the bottom surface of the slider 1, and keep the first polyester film in a tensioned state, then place the left side of the other end of the first polyester film in the first accommodating space 23, and the right side of the other end of the first polyester film in the second accommodating space 33, finally tighten the first locking member 22 and the second locking member 32 so that the first clamping piece 211, the second clamping piece 212 and the slider 1 clamp and fix the two ends of the first polyester film.
[0035] Specifically, the first elastic piece 21 and the second elastic piece 31 have a certain elasticity and can be made of a spring sheet or a plastic material with a certain elasticity. The first locking member 22 and the second locking member 32 can be fastened parts such as screws and bolts.
[0036] As one of the optional implementations of this embodiment, the first elastic sheet 21 includes a first clamping sheet 211 and a second clamping sheet 212 arranged at intervals, and the first locking member 22 includes a first fastener 221 and a second fastener (not shown), the first fastener 221 fastens the first clamping sheet 211 and the slider 1, and the second fastener fastens the second clamping sheet 212 and the slider 1.
[0037] As one of the optional implementations of this embodiment, the second elastic sheet 31 includes a third clamping sheet 311 and a fourth clamping sheet 312 that are spaced apart, and the second locking member 32 includes a third fastener 321 and a fourth fastener 322. The third fastener 321 fastens the third clamping sheet 311 and the slider 1, and the fourth fastener 322 fastens the fourth clamping sheet 312 and the slider 1.
[0038] like Figure 3 The second embodiment shown is based on the second embodiment. The specific implementation process of this embodiment is as follows:
[0039] First, loosen the first fastener 221, the second fastener 32, the third fastener 321 and the fourth fastener 322 to keep the first clamping piece 211, the second clamping piece 212, the third clamping piece 311 and the fourth clamping piece 312 in an open state, then place the left side of one end of the first polyester film in the first accommodating space 23, and the right side of one end of the first polyester film in the second accommodating space 33, wrap the first polyester film around the bottom surface of the slider 1 and keep the first polyester film in a tensioned state, then place the left side of the other end of the first polyester film in the first accommodating space 23, and the right side of the other end of the first polyester film in the second accommodating space 33, finally tighten the first fastener 221, the second fastener 32, the third fastener 321 and the fourth fastener 322 to make the first clamping piece 211, the second clamping piece 212, the third clamping piece 311 and the fourth clamping piece 312 and the slider 1 clamp and fix the two ends of the first polyester film.
[0040] As one of the optional implementations of this embodiment, the first fastener 221 and the second fastener have the same structure. The first fastener 221 includes a first screw and a first spring 2211 sleeved outside the first screw. One end of the first spring 2211 abuts the first clamping piece 211, and the other end of the first spring 2211 abuts the slider 1. The first screw threadedly connects the first clamping piece 211 and the slider 1. When the first fastener 221 and the second fastener are tightened, the first spring 2211 at the corresponding position is pressurized and compressed. When the first fastener 221 and the second fastener are loosened, the first spring 2211 at the corresponding position extends due to its own elastic force, thereby driving the corresponding first clamping piece 211 and the second clamping piece 212 to open.
[0041] As one of the optional implementations of this embodiment, the third fastener 321 and the fourth fastener 322 have the same structure. The third fastener 321 includes a second screw and a second spring 3211 sleeved over the second screw. One end of the second spring 3211 abuts the third clamping piece 311, and the other end of the second spring 3211 abuts the slider 1. The second screw is threadedly connected to the third clamping piece 311 and the slider 1. When the third fastener 321 and the fourth fastener 322 are tightened, the second spring 3211 at the corresponding position is pressurized and compressed. When the third fastener 321 and the fourth fastener 322 are loosened, the second spring 3211 at the corresponding position extends due to its own elastic force, thereby driving the corresponding third clamping piece 311 and the fourth clamping piece 312 to open.
[0042] As one of the optional implementations of this embodiment, the handle 4 includes a traction rod 41, a cross rod 42 and a first vertical rod 43, one end of the first vertical rod 43 is fixedly connected to the slider 1, the other end of the first vertical rod 43 is fixedly connected to the cross rod 42, and the end of the cross rod 42 facing away from the first vertical rod 43 is fixedly connected to the traction rod 41 to form a placement space 44 for hand holding between the traction rod 41 and the first vertical rod 43.
[0043] As an optional implementation of this embodiment, the handle further includes a second vertical rod 45 , one end of the second vertical rod 45 is fixedly connected to the slider 1 , and the other end of the second vertical rod 45 is fixedly connected to the cross bar 42 .
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A polyester film friction coefficient testing component, characterized in that: include: slider; a first clamping member, provided at one end of the slider, for clamping one end of the first polyester film; a second clamping member, provided at the other end of the slider, for clamping the other end of the first polyester film; a handle fixedly connected to the slider; A friction coefficient tester is provided, wherein the friction coefficient tester comprises a fixing block for fixing a second polyester film; when in use, the slider is used to slide relative to the fixing block to cause the first polyester film to rub against the second polyester film.
2. The polyester film friction coefficient testing assembly according to claim 1, wherein: The first clamping member includes a first elastic sheet and a first locking member. A first accommodating space for placing the polyester film is formed between the first elastic sheet and the slider. The first locking member is fastened to the first elastic sheet and the slider so that the first elastic sheet and the slider clamp and fix the first polyester film.
3. The polyester film friction coefficient testing assembly according to claim 2, wherein: The first elastic piece includes a first clamping piece and a second clamping piece that are spaced apart. The first locking member includes a first fastener and a second fastener. The first fastener fastens the first clamping piece and the slider. The second fastener fastens the second clamping piece and the slider.
4. The polyester film friction coefficient testing assembly according to claim 3, wherein: The first fastener and the second fastener have the same structure. The first fastener includes a first screw and a first spring sleeved outside the first screw. One end of the first spring abuts against the first clamping piece, and the other end of the first spring abuts against the slider. The first screw threadably connects the first clamping piece and the slider.
5. The polyester film friction coefficient testing assembly according to claim 2, wherein: The second clamping member includes a second elastic sheet and a second locking member. A second accommodating space for placing the polyester film is formed between the second elastic sheet and the slider. The second locking member is fastened to connect the second elastic sheet and the slider so that the second elastic sheet and the slider clamp and fix the first polyester film.
6. The polyester film friction coefficient testing assembly according to claim 5, wherein: The second elastic piece includes a third clamping piece and a fourth clamping piece that are spaced apart, and the second locking member includes a third fastener and a fourth fastener. The third fastener fastens the third clamping piece and the slider, and the fourth fastener fastens the fourth clamping piece and the slider.
7. The polyester film friction coefficient testing assembly according to claim 6, wherein: The third fastener and the fourth fastener have the same structure. The third fastener includes a second screw and a second spring sleeved outside the second screw. One end of the second spring abuts against the third clamping piece, and the other end of the second spring abuts against the slider. The second screw is threadedly connected to the third clamping piece and the slider.
8. The polyester film friction coefficient testing assembly according to claim 1, wherein: The handle includes a traction rod, a cross rod and a first vertical rod, one end of the first vertical rod is fixedly connected to the slider, the other end of the first vertical rod is fixedly connected to the cross rod, and the end of the cross rod facing away from the first vertical rod is fixedly connected to the traction rod to form a placement space for hand holding between the traction rod and the first vertical rod.
9. The polyester film friction coefficient testing assembly according to claim 8, wherein: The handle further includes a second vertical rod, one end of the second vertical rod is fixedly connected to the slider, and the other end of the second vertical rod is fixedly connected to the cross rod.