A metallized film coating stripping jig

Abstract

The utility model discloses a kind of metalized film plating layer stripping clamps, it is related to metal plating layer stripping technical field, including sample carrier plate, the top of the sample carrier plate is provided with test sample, the top of the test sample is provided with lower clamp block, the bottom of the sample carrier plate is provided with bottom plate, the top of the lower clamp block is provided with upper pressing block, the bottom of the lower clamp block is provided with arc chamfer plate, the sample carrier plate, upper pressing block, lower clamp block and arc chamfer plate are used for stripping operation to stripping sample together.The utility model by sample carrier plate, upper pressing block, lower clamp block and arc chamfer plate, will make that metalized film plating layer ontology overall presents 180 ° stripping angle.180 ° stripping can ensure that material is smoothly, naturally guided at stripping point, to avoid that test itself causes damage or introduces additional stress to material, ensure that data reflection is real interface strength.

Description

Technical Field

[0001] This utility model relates to the field of metal coating stripping technology, and in particular to a metallized film coating stripping fixture. Background Technology

[0002] Metallization coating stripping technology is a technique that selectively removes the coating from specific areas of a metal substrate surface using physical, chemical, or mechanical means, while preserving other areas or the substrate itself. Its core principle is based on the differences in physical or chemical properties between the coating and the substrate, achieving precise separation by controlling the stripping parameters.

[0003] In existing mechanical peeling methods, the standard peeling fixtures cannot achieve 180-degree peeling, leading to inaccurate peeling force data due to variations in the peeling angle. Peeling force data is crucial for optimizing the coating process. Inaccurate data can cause incorrect process adjustments. The peeling angle directly affects the peeling force value. When the angle is less than 180 degrees, the peeling force includes an additional "stretching" or "tearing" component, resulting in a measured force value significantly greater than the actual 180-degree peeling force.

[0004] To address the issue of the standard peeling fixture's inability to achieve 180-degree peeling, a double-layer clamping block is incorporated. The upper clamping block secures the portion of the sample to be peeled, and then, after an S-shaped twist, the lower clamping block re-secures the sample, significantly improving the 180-degree peeling effect. The S-shaped twist design ensures that the peeling force is evenly distributed along the sample's length, avoiding nonlinear deformation caused by localized stress concentration and ensuring a stable peeling process. Traditional fixtures require multiple angle adjustments and repeated testing, while the double-layer clamping block uses a mechanical structure to fix the angle in one go, greatly improving the success rate of a single test and significantly reducing the testing time for a single sample.

[0005] However, in existing peeling jigs for metallized coatings, the peeling process is primarily performed by directly peeling at a reverse angle. During reverse angle peeling, the peeling force is concentrated at the angle, causing stress concentration at the interface between the coating and the substrate. This stress can induce microcracks, especially when the coating is thin or the adhesion is weak. These cracks can easily propagate to the substrate, resulting in incomplete coating peeling or damage to the substrate. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a metallized film coating peeling jig, which solves the problem that the standard peeling jig cannot achieve 180-degree peeling.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A metallized film coating peeling fixture includes a sample carrier plate, a test sample disposed at the top of the sample carrier plate, a lower clamping block disposed at the top of the test sample, a base plate disposed at the bottom of the sample carrier plate, an upper pressure block disposed at the top of the lower clamping block, and an arc-shaped chamfered plate disposed at the bottom of the lower clamping block. The sample carrier plate, upper pressure block, lower clamping block, and arc-shaped chamfered plate are used together to perform a peeling operation on the sample, thereby achieving a peeling angle of 180 degrees.

[0009] As a further improvement of this utility model, the test sample includes a substrate, and a metallized film coating body is attached to the top of the substrate.

[0010] As a further improvement of this utility model, a control frame is fixedly connected to the top of the base plate. Two bolts are symmetrically arranged at the top of the control frame, and a through-fixing rod is fixedly connected to the bottom of each bolt. The through-fixing rod passes through the control frame, the upper pressure block, and the lower clamping block and is fixedly connected to the top surface of the base plate. The upper pressure block and the lower clamping block are connected in series and fixed by bolts.

[0011] As a further improvement of this utility model, a threaded rod is threaded through the center of the top of the control frame. A butterfly handwheel is fixedly connected to the top of the threaded rod, and the bottom of the threaded rod is rotatably connected to the inside of the top of the upper pressure block. Springs are fixedly connected to the bottom of the upper pressure block outside the through-fixed rod, and these springs are all fixedly connected to the top surface of the lower clamping block. The movement of the upper pressure block is controlled by the butterfly handwheel and the threaded rod.

[0012] As a further improvement of this utility model, two telescopic plates are symmetrically fixedly connected to the bottom end of the lower clamping block. Each telescopic plate is fixedly connected to the top surface of the arc-shaped chamfered plate. Two fixing plates are symmetrically fixedly connected to the bottom end of the arc-shaped chamfered plate, each fixing plate being fixedly connected to the top surface of the base plate. The telescopic plates, arc-shaped chamfered plate, and fixing plates ensure that the movement of the lower clamping block does not affect the normal use of the arc-shaped chamfered plate.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. Using a sample carrier plate, upper pressure block, lower clamping block, and curved chamfer plate, the metallized film coating body is made to present a 180° peel angle. The 180° peel ensures that the material is smoothly and naturally guided at the peel point, thereby avoiding damage to the material or the introduction of additional stress by the test itself, and ensuring that the data reflects the true interface strength.

[0015] 2. The curved design of the front end of the chamfered plate prevents damage to the metallized film coating during peeling and ensures a stable and consistent peeling angle. This greatly reduces local stress, allowing the metallized film coating to bend and deform smoothly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the metallized film coating body and the substrate in this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the bottom plate, upper pressure block, and spring of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the lower clamping block, telescopic plate, and arc-shaped chamfered plate in this utility model.

[0020] In the figure: 100, test sample; 101, metallized film coating body; 102, substrate; 201, base plate; 202, control frame; 203, bolt; 204, through fixing rod; 205, butterfly handwheel; 206, threaded rod; 207, upper pressure block; 208, spring; 209, lower clamping block; 210, telescopic plate; 211, arc-shaped chamfer plate; 212, fixing plate; 300, sample carrier plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] See attached document Figure 1 -Appendix Figure 4 A metallized film coating peeling fixture includes a test sample 100, a through fixing rod 204, a threaded rod 206, an upper pressure block 207, a spring 208, a lower clamping block 209, a telescopic plate 210, an arc-shaped chamfered plate 211, and a sample carrier plate 300.

[0024] In this embodiment, taking the peeling of a metallized film coating from a sample as an example, when using this invention, the sample carrier plate 300 is first inserted between the two fixing plates 212 at the bottom of the arc-shaped chamfered plate 211. Then, the lower clamping block 209 is moved to a suitable position by extending and retracting the telescopic plate 210. The position of the lower clamping block 209 can be adjusted, meaning it can easily adapt to sample combinations of different thicknesses without replacing the entire fixture. Then, the test sample 100 to be peeled is manually placed at the top of the sample carrier plate 300, with a portion of the metallized film coating body 101 pre-separated from the substrate 102 for subsequent clamping. The metallized film coating body 101 to be peeled is then passed between the fixing plates 212. After passing through the fixing plates 212, the metallized film coating body 101 passes in an S-shape along the arc of the arc-shaped chamfered plate 211 between the telescopic plate 210 and the lower clamping block 209. Finally, the free end of the metallized film coating body 101 is placed between the upper pressure block 207 and the spring 208. At this time, rotating the butterfly handwheel 205 causes the upper pressure block 207 to move downward under the drive of the threaded rod 206, thereby achieving the effect of fixing the metallized film coating body 101. The above operation makes the metallized film coating body 101 present a peeling angle of 180°. Through the design of the sample carrier plate 300 and the fixing plate 212, the test sample 100 is clearly and rigidly fixed. This ensures the stability of the force system during the peeling process. The tensile testing machine pulls the fixture through the metallized film, while the base of the fixture remains relatively stationary. This eliminates the error caused by the movement of the test sample 100, making the test results purer and more accurate. Since the above-mentioned tensile testing machine pulling the overall fixture movement is prior art, it will not be described again in this application.

[0025] When the metallized film coating body 101 is wound in an S-shape, the arc design of the front end of the arc-shaped chamfer plate 211 prevents damage to the metallized film coating body 101 during peeling and ensures a stable and consistent peeling angle. The arc-shaped chamfer plate 211 provides a large-radius, smooth, and continuous transition surface. This greatly reduces local stress, allowing the metallized film coating body 101 to bend and deform smoothly, thus simulating the mechanical conditions it experiences during an ideal 180-degree peel. Moreover, the arc-shaped surface of the arc-shaped chamfer plate 211 acts like a "track," precisely defining the bending path and final exit tangent direction of the metallized film coating body 101. Regardless of the operator, as long as the test sample 100 is placed on this arc-shaped surface, the geometric relationship of each test is completely consistent.

[0026] The double-layer clamping design, achieved through the upper pressure block 207 and spring 208, allows for S-shaped twisting of the double-layer clamping blocks. This ensures that experiments conducted by different operators at different times can be performed according to a uniform pattern, significantly reducing random errors caused by human operation. Clamping force is a significant potential source of variation in testing. Clamping too tightly may damage the metallized film coating body 101, while clamping too loosely may cause the metallized film coating body 101 to slip during testing, both of which lead to severe data distortion. Spring 208 automatically compensates for and standardizes this clamping force, ensuring that the initial mechanical state of the sample is consistent with each installation. Spring 208 provides an "elastic" clamping force, rather than a "rigid" crushing force. This is crucial for soft and fragile samples like the metallized film coating body 101. Even if different operators tighten the force slightly differently, spring 208 can buffer excessive pressure, preventing the fragile coating or film from being crushed or broken, thus avoiding damage to the sample before the test begins.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A metallized film coating peeling fixture, comprising a sample carrier plate (300), characterized in that, The test sample (100) is provided at the top of the sample carrier plate (300), the lower clamping block (209) is provided at the top of the test sample (100), the bottom plate (201) is provided at the bottom of the sample carrier plate (300), the upper pressure block (207) is provided at the top of the lower clamping block (209), and the arc-shaped chamfer plate (211) is provided at the bottom of the lower clamping block (209). The sample carrier plate (300), the upper pressure block (207), the lower clamping block (209) and the arc-shaped chamfer plate (211) are used to separate and peel off the test sample (100).

2. The metallized film coating peeling fixture according to claim 1, characterized in that, The test sample (100) includes a substrate (102), and a metallized film coating body (101) is attached to the top of the substrate (102).

3. The metallized film coating peeling fixture according to claim 1, characterized in that, The top of the base plate (201) is fixedly connected to a control frame (202). Two bolts (203) are symmetrically arranged at the top of the control frame (202). The bottom of each bolt (203) is fixedly connected to a through fixing rod (204). The through fixing rod (204) passes through the control frame (202), the upper pressure block (207), and the lower clamping block (209) and is fixedly connected to the top surface of the base plate (201).

4. The metallized film coating peeling fixture according to claim 3, characterized in that, A threaded rod (206) is threaded through the center of the top of the control frame (202). A butterfly handwheel (205) is fixedly connected to the top of the threaded rod (206). The bottom of the threaded rod (206) is rotatably connected to the inside of the top of the upper pressure block (207). A spring (208) is fixedly connected to the bottom of the upper pressure block (207) outside the through fixing rod (204). The springs (208) are all fixedly connected to the top surface of the lower clamping block (209).

5. A metallized film coating peeling fixture according to claim 4, characterized in that, The bottom end of the lower clamping block (209) is symmetrically fixedly connected to two telescopic plates (210), and the telescopic plates (210) are all fixedly connected to the top surface of the arc-shaped chamfer plate (211). The bottom end of the arc-shaped chamfer plate (211) is symmetrically fixedly connected to two fixing plates (212), and the fixing plates (212) are all fixedly connected to the top surface of the base plate (201).

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