A sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film

Abstract

The utility model discloses a sample preparation device for detecting the residual rate of the aluminum layer after punching a pit on an aluminum-plastic film, and belongs to the technical field of battery processing. The sample preparation device comprises: a sample table, a clamp, a bracket, a tool holder, a cutter and a magnifying glass. The clamp and the bracket are installed on the sample table, the tool holder and the magnifying glass are installed on the bracket, and the cutter is installed on the tool holder. The clamp is used to fix the aluminum-plastic film, and the cutter is arranged between the magnifying glass and the clamp. The tool holder is rotatably installed on the bracket so that the cutter can move toward the clamp. The utility model cuts the aluminum-plastic film at the position to be inspected by the cutter, and can quickly and effectively test the residual amount of the aluminum layer after punching a pit. The measurement accuracy is high and there is no radiation damage, which solves the problem that the prior art epoxy curing measurement method is time-consuming and labor-intensive and the success rate of sample preparation is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery processing, in particular to a sample preparation device for detecting the residual rate of an aluminum layer after punching holes in an aluminum-plastic film. Background Art

[0002] With the increasing requirements for the energy density of soft-pack batteries, the requirements for the punching holes in the aluminum-plastic film are getting deeper and deeper. In order to ensure the safety performance of the battery cells, the residual amount of the aluminum layer must be guaranteed to be above 20μm to meet the function of isolating water vapor.

[0003] At present, the method for detecting the residual amount of aluminum layer in the soft package punching pit is to use an X-ray thickness gauge or grind with a grinder after the epoxy resin is cured and formed. The former has the problem of radiation damage, and the latter is time-consuming and labor-intensive and has a low success rate in sample preparation. Utility Model Content

[0004] The purpose of the utility model is to provide a sample preparation device for detecting the residual rate of the aluminum layer after punching holes in an aluminum-plastic film. By cutting the aluminum-plastic film at the position to be inspected with a cutter, the residual amount of the aluminum layer after punching holes can be quickly and effectively tested. The measurement accuracy is high and there is no radiation damage. This solves the problem that the prior art epoxy curing measurement method is time-consuming and labor-intensive and has a low success rate in sample preparation.

[0005] The technical scheme of the utility model is: a sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film comprises: a sample table, a clamp, a bracket, a knife holder, a cutter and a magnifying glass.

[0006] The clamp and the bracket are installed on the sample stage, the knife holder and the magnifying glass are installed on the bracket, and the cutter is installed on the knife holder.

[0007] The clamp is used for fixing the aluminum-plastic film.

[0008] The cutter is arranged between the magnifying glass and the clamp, and the knife holder is rotatably mounted on the bracket so that the cutter can move toward the clamp.

[0009] In a further embodiment, the cutter is detachably connected to the cutter holder, which facilitates replacement of the cutter and ensures the sharpness of the cutter.

[0010] In a further embodiment, the bracket is rotatably connected to the sample stage, so that the cutter and the magnifying glass on the bracket can rotate relative to the clamp, which is convenient for clamping the aluminum-plastic film.

[0011] In a further embodiment, the sample preparation device further comprises: a bearing, and the bracket is connected to the sample stage via the bearing, so that the rotation of the bracket is smoother.

[0012] In a further embodiment, the magnifying glass is a magnifying glass with a sighting line, so that the cutter can accurately fall on the marked position of the aluminum-plastic film.

[0013] The beneficial effects of the utility model are as follows: the application magnifies the position of the aluminum-plastic film to be inspected by a magnifying glass to facilitate adjustment of the position of the aluminum-plastic film, cuts the aluminum-plastic film by a cutter, can detect the cut position of the aluminum-plastic film to be inspected and record the thickness at the narrowest point as the aluminum layer remaining after the aluminum-plastic film is punched, can quickly and effectively test the residual amount of the aluminum layer after the punching, has high measurement accuracy, and has no radiation damage, thus solving the problem that the prior art epoxy curing measurement method is time-consuming and labor-intensive and has a low success rate in sample preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall axonometric schematic diagram of the utility model.

[0015] Figure 2 It is an overall sectional schematic diagram of the utility model.

[0016] The reference numerals shown in the figure are: sample table 1, fixture 2, bracket 3, tool holder 4, cutter 5, magnifying glass 6, bearing 7. DETAILED DESCRIPTION

[0017] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0018] The present application discloses a sample preparation device for detecting the residual rate of the aluminum layer after punching holes in an aluminum-plastic film. By cutting the aluminum-plastic film at the position to be tested with a cutter, the residual amount of the aluminum layer after punching holes can be quickly and effectively tested, with high measurement accuracy and no radiation damage, thus solving the problem that the prior art epoxy curing measurement method is time-consuming and labor-intensive and has a low success rate in sample preparation.

[0019] like Figure 1 The sample preparation device shown includes: a sample table 1, a clamp 2, a bracket 3, a knife holder 4, a cutter 5 and a magnifying glass 6.

[0020] The fixture 2 and the support 3 are installed on the sample stage 1 , the tool holder 4 and the magnifying glass 6 are installed on the support 3 , and the cutting knife 5 is installed on the tool holder 4 .

[0021] The clamp 2 is used to fix the aluminum-plastic film.

[0022] The cutter 5 is arranged between the magnifying glass 6 and the clamp 2 , and the knife holder 4 is rotatably mounted on the bracket 3 , so that the cutter 5 can move toward the clamp 2 .

[0023] In this embodiment, the clamp 2 may include a clamp plate and a plurality of screws passing through the clamp plate and threadedly engaged with the sample stage 1. Grooves corresponding to the cutter 5 may be provided on the clamp 2 and the sample stage 1 to prevent the cutter 5 from hitting the clamp 2 and the sample stage 1. The aluminum-plastic film is placed between the clamp plate and the sample stage 1 and the position of the aluminum-plastic film is adjusted to position the aluminum-plastic film by tightening the screws.

[0024] A mounting groove is provided on the bracket 3, and the end of the tool holder 4 is inserted into the mounting groove. The tool holder 4 is laterally limited by the side wall of the mounting groove, and then a pin shaft or a bolt is passed through the tool holder 4 and the bracket 3 so that the tool holder 4 and the bracket 3 are rotatably connected. A bearing 7 can also be set on the tool holder 4 or the bracket 3, and a pin shaft or a bolt is passed through the bearing 7 on the tool holder 4 or the bracket 3 to improve the rotation stability of the tool holder 4.

[0025] In this embodiment, the cutter 5 is detachably connected to the cutter holder 4, wherein the cutter 5 is detachably connected to the cutter holder 4 via a detachable fastener such as a screw.

[0026] The detachable connection between the cutter 5 and the knife holder 4 makes it easy to replace the cutter 5, thereby ensuring the sharpness of the cutter 5 and reducing shear deformation during the cutting process.

[0027] In this embodiment, the bracket 3 is rotatably connected to the sample stage 1, so that the cutter 5 and the magnifying glass 6 on the bracket 3 can rotate relative to the clamp 2, wherein the bracket 3 can be inserted into the sample stage 1, and / or a rubber ring is arranged between the bracket 3 and the sample stage 1 to increase the damping between the bracket 3 and the sample stage 1 so that the circumferential positioning of the bracket 3 is more stable.

[0028] By the rotational connection between the bracket 3 and the sample stage 1 , the aluminum-plastic film can be conveniently clamped between the fixture 2 and the sample stage 1 .

[0029] In this embodiment, the sample preparation device further includes a bearing 7 , and the bracket 3 is connected to the sample stage 1 via the bearing 7 .

[0030] The bearing 7 makes the rotation of the bracket 3 smoother and the radial positioning more stable.

[0031] In this embodiment, the magnifying glass 6 is a magnifying glass 6 with a sighting line, so that the falling position of the cutter 5 matches the sighting line of the magnifying glass 6, so that the cutter 5 can fall to the marked position of the aluminum-plastic film.

[0032] The mark of the position to be inspected of the aluminum-plastic film can be positioned by the sighting line, so that the cutter 5 can accurately fall on the marked position of the aluminum-plastic film.

[0033] Working principle: first cut off the corners of the aluminum-plastic film, mark the aluminum-plastic film with a marker, and fix the aluminum-plastic film between the fixture 2 and the sample table 1.

[0034] Then use the magnifying glass 6 to observe the position of the aluminum-plastic film mark, and there is an aiming line on the magnifying glass 6, which is aligned with the mark point on the aluminum-plastic film.

[0035] After the relative positions of the aluminum-plastic film, the magnifying glass 6 and the cutter 5 are adjusted, the cutter 5 is quickly lowered to cut the aluminum-plastic film.

[0036] Finally, the cross-section of the cut aluminum-plastic film is photographed using a microscope, and the thickness of the narrowest part of the aluminum foil residue is recorded as the aluminum layer remaining after the aluminum-plastic film is punched.

[0037] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film, characterized in that: include: Sample stages, fixtures, stands, knife holders, cutters and magnifiers; The fixture and the bracket are installed on the sample stage, the tool holder and the magnifying glass are installed on the bracket, and the cutter is installed on the tool holder; The clamp is used to fix the aluminum-plastic film; The cutter is arranged between the magnifying glass and the clamp, and the knife holder is rotatably mounted on the bracket so that the cutter can move toward the clamp.

2. According to claim 1, a sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film, characterized in that: The cutting knife is detachably connected to the knife holder.

3. The sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film according to claim 1, characterized in that: The support is rotatably connected to the sample stage, so that the cutter and the magnifying glass on the support can rotate relative to the fixture.

4. A sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film according to claim 3, characterized in that: Also includes: Bearing, the bracket is connected to the sample stage through the bearing.

5. The sample preparation device for detecting the residual rate of aluminum layer after punching holes in aluminum-plastic film according to claim 1, characterized in that: The magnifying glass is a magnifying glass with a sighting line.

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