Coating pole piece sampling device

Abstract

The utility model discloses a coating pole piece sampling device which comprises a bottom plate and a sampling mechanism, guide grooves are formed in the periphery of the inner wall of the bottom plate, fixing blocks are welded to the two ends of the outer wall of the bottom plate, fixing holes are formed in the inner walls of the fixing blocks, a top plate is arranged at the bottom end of the bottom plate, and limiting blocks are welded to the two ends of the outer wall of the top plate. And a limiting hole is formed in the inner wall of the limiting block. According to the sampling device for the coated pole piece, by arranging the sampling mechanism, when the pole piece is cut and sampled, the pole piece is conveniently placed between the bottom plate and the top plate, the top plate is driven by equipment to press downwards, the pole piece is cut into circular pole pieces with the same size through a circular sampling blade in a cutter groove in the sampling mechanism, and after the equipment drives the top plate to ascend, the pole piece is taken out. The cut circular pole piece is ejected out through the elastic foam cushion block on the inner wall of the cutter groove, material taking is facilitated, and the cut circular pole piece can be prevented from being clamped in the cutter groove through the elastic foam cushion block.

Description

Technical Field

[0001] The utility model relates to the technical field related to the production of lithium batteries, in particular to a coating electrode sheet sampling device. Background Technique

[0002] The lithium battery contains electrode sheets. The coating of the lithium battery electrode sheet refers to a process of uniformly coating the uniformly stirred slurry on the foil and drying the organic solvent in the slurry. The coating process is a very critical process in the production process of lithium batteries. The coating surface density is one of the most important technical parameters in the production of lithium-ion batteries, directly determining the battery capacity, internal resistance, cycle life and safety. If the coating surface density is too small, the battery capacity cannot reach the nominal capacity. If the coating surface density is too high, the positive electrode capacity cannot be fully exerted, which is likely to cause material waste. Seriously, the precipitation of excessive lithium in the positive electrode forms lithium dendrites that pierce the battery diaphragm and cause internal short circuits, leading to potential safety hazards. The inconsistent surface density makes it difficult to keep the baking temperature of the electrode sheet constant. Too high a temperature is likely to cause the electrode sheet to crack, and too low a temperature means that the electrode sheet cannot be completely dried, which will affect the subsequent rolling of the electrode sheet and cannot ensure the performance consistency of the battery electrode sheet. Therefore, a coating electrode sheet sampling device is urgently needed.

[0003] In the currently used coating electrode sheet sampling device, when cutting and sampling the lithium battery electrode sheet, the cut circular electrode sheet is easy to get stuck inside the knife groove and is not easy to take out. Content of the Utility Model

[0004] The purpose of the utility model is to provide a coating electrode sheet sampling device to solve the problem that in the currently used coating electrode sheet sampling device, when cutting and sampling the lithium battery electrode sheet, the cut circular electrode sheet is easy to get stuck inside the knife groove and is not easy to take out as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A coating electrode sheet sampling device, including a bottom plate and a sampling mechanism. Guide grooves are opened around the inner wall of the bottom plate, and fixing blocks are welded at both ends of the outer wall of the bottom plate. Fixing holes are opened in the inner walls of the fixing blocks. A top plate is arranged at the bottom end of the bottom plate, and limiting blocks are welded at both ends of the outer wall of the top plate. Limiting holes are opened in the inner walls of the limiting blocks. Guide columns are welded around the top end of the top plate. The sampling mechanisms are all welded at the top end of the top plate. The sampling mechanism includes a knife groove, a circular sampling blade and an elastic foam gasket. The knife grooves are all welded at the top end of the top plate. The circular sampling blade is inlaid in the inner wall of the knife groove, and the elastic foam gasket is arranged on the inner wall of the knife groove.

[0006] Preferably, the fixing blocks are symmetrically arranged with the central axis of the bottom plate as the axis of symmetry, and each fixing block is of an open-hole design.

[0007] Preferably, the guide posts are symmetrically arranged with respect to the central axis of the top plate, and there is a one-to-one correspondence between the guide posts and the guide grooves.

[0008] Preferably, the bottom end of the elastic foam cushion block is in close contact with the bottom end of the tool groove, and the outer wall size of the elastic foam cushion block fits the inner wall size of the tool groove.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] 1. For the coating pole piece sampling device, through the sampling mechanism provided, it is convenient to place the pole piece between the bottom plate and the top plate when cutting and sampling the pole piece. The top plate is driven to press down by the device, and the circular sampling blade in the tool groove of the sampling mechanism cuts the pole piece into circular pole pieces of equal size. After the device drives the top plate to rise, the elastic foam cushion block on the inner wall of the tool groove ejects the cut circular pole pieces, which is convenient for taking materials. The elastic foam cushion block can prevent the cut circular pole pieces from getting stuck inside the tool groove.

[0011] 2. For the coating pole piece sampling device, through the fixed blocks, fixed holes, limit blocks and limit holes provided, it is convenient for installation. The bottom plate is installed on the bottom end of the device through the fixed blocks with screws, and then the top plate is installed on the lifting device at the top end of the device through the fixed blocks with screws. The installation is convenient. At the same time, the guide grooves and guide posts can play a guiding role during the lifting process, preventing the bottom plate and the top plate from moving and causing damage to the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front perspective view of the present utility model;

[0013] Figure 2 is the three-dimensional part drawing of the sampling mechanism of the present utility model;

[0014] Figure 3 is the three-dimensional part drawing of the bottom plate of the present utility model.

[0015] In the figure: 1, bottom plate; 2, guide groove; 3, fixed block; 4, fixed hole; 5, top plate; 6, limit block; 7, limit hole; 8, guide post; 9, sampling mechanism; 901, tool groove; 902, circular sampling blade; 903, elastic foam cushion block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a coating electrode sheet sampling device, which includes a bottom plate 1 and a sampling mechanism 9. Guide grooves 2 are provided around the inner wall of the bottom plate 1, and fixing blocks 3 are welded to both ends of the outer wall of the bottom plate 1. The fixing blocks 3 are symmetrically arranged with the central axis of the bottom plate 1 as the axis of symmetry, and each fixing block 3 is designed with an opening. A fixing hole 4 is provided in the inner wall of the fixing block 3. A top plate 5 is arranged at the bottom end of the bottom plate 1, and limiting blocks 6 are welded to both ends of the outer wall of the top plate 5. Limiting holes 7 are provided in the inner walls of the limiting blocks 6. Guide posts 8 are welded around the top end of the top plate 5. The guide posts 8 are symmetrically arranged with the central axis of the top plate 5 as the axis of symmetry, and the guide posts 8 and the guide grooves 2 are arranged in one-to-one correspondence. By providing the fixing blocks 3, fixing holes 4, limiting blocks 6 and limiting holes 7, it is convenient to install the bottom plate 1 on the bottom end of the device through the fixing blocks 3 with screws during installation, and then install the top plate 5 on the top end of the device and the lifting device through the fixing blocks 3 with screws. The installation is convenient. At the same time, the guide grooves 2 and the guide posts 8 can play a guiding role during the lifting process, avoiding damage to the device caused by the movement of the bottom plate 1 and the top plate 5.

[0018] The sampling mechanism 9 is welded to the top end of the top plate 5. The sampling mechanism 9 includes a knife groove 901, a circular sampling blade 902 and an elastic foam cushion block 903. The knife grooves 901 are welded to the top end of the top plate 5. The circular sampling blade 902 is embedded in the inner wall of the knife groove 901, and an elastic foam cushion block 903 is arranged on the inner wall of the knife groove 901. The bottom end of the elastic foam cushion block 903 is in close contact with the bottom end of the knife groove 901, and the outer wall size of the elastic foam cushion block 903 matches the inner wall size of the knife groove 901. By providing the sampling mechanism 9, it is convenient to cut and sample the electrode sheet. When sampling, place the electrode sheet between the bottom plate 1 and the top plate 5, drive the top plate 5 to press down by the device, and cut the electrode sheet into circular electrode sheets of equal size by the circular sampling blade 902 in the knife groove 901 of the sampling mechanism 9. After the device drives the top plate 5 to rise, the cut circular electrode sheets are ejected by the elastic foam cushion block 903 on the inner wall of the knife groove 901, which is convenient for taking materials. The elastic foam cushion block 903 can prevent the cut circular electrode sheets from getting stuck inside the knife groove 901.

[0019] Working principle: When installing the device on the processing equipment, first install the bottom plate 1 on the bottom end of the equipment through the fixing block 3 with screws, and then install the top plate 5 on the top end lifting equipment of the equipment through the fixing block 3 with screws. The installation is convenient. At the same time, the guide groove 2 and the guide post 8 can play a guiding role during the lifting process to prevent the bottom plate 1 and the top plate 5 from moving and causing damage to the device. When cutting and sampling the electrode sheet of the lithium battery, place the electrode sheet between the bottom plate 1 and the top plate 5, drive the top plate 5 to press down by the equipment, and cut the electrode sheet into circular electrode sheets of equal size through the circular sampling blade 902 in the knife groove 901 of the sampling mechanism 9. After the equipment drives the top plate 5 to rise, the cut circular electrode sheet is ejected through the elastic foam cushion block 903 on the inner wall of the knife groove 901, which is convenient for material taking. The elastic foam cushion block 903 can prevent the cut circular electrode sheet from getting stuck inside the knife groove 901. In this way, the operation process of a coating electrode sheet sampling device is completed.

[0020] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating electrode sampling device, characterized in that, It includes a bottom plate (1) and a sampling mechanism (9). Guide grooves (2) are provided around the inner wall of the bottom plate (1), and fixing blocks (3) are welded to both ends of the outer wall of the bottom plate (1). Fixing holes (4) are provided in the inner walls of the fixing blocks (3). A top plate (5) is provided at the bottom end of the bottom plate (1), and limiting blocks (6) are welded to both ends of the outer wall of the top plate (5). Limiting holes (7) are provided in the inner walls of the limiting blocks (6). Guide posts (8) are welded around the top end of the top plate (5). The sampling mechanisms (9) are welded to the top end of the top plate (5). The sampling mechanism (9) includes knife grooves (901), circular sampling blades (902), and elastic foam pads (903). The knife grooves (901) are welded to the top end of the top plate (5). The circular sampling blades (902) are embedded in the inner walls of the knife grooves (901), and elastic foam pads (903) are provided on the inner walls of the knife grooves (901).

2. The sampling device for a coated electrode sheet according to claim 1, wherein: The fixing blocks (3) are symmetrically arranged with respect to the central axis of the bottom plate (1), and each fixing block (3) is of an open-hole design.

3. The sampling device for coated electrode sheets according to claim 1, characterized in that: The guide posts (8) are symmetrically arranged with respect to the central axis of the top plate (5), and the guide posts (8) and the guide grooves (2) are arranged in a one-to-one correspondence.

4. The coating electrode sheet sampling device according to claim 1, characterized in that: The bottom end of the elastic foam pad (903) is in close contact with the bottom end of the knife groove (901), and the outer wall dimensions of the elastic foam pad (903) match the inner wall dimensions of the knife groove (901).

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