Pole piece sampling device

Abstract

The utility model discloses a pole piece sampling device, which relates to the technical field of battery manufacturing and comprises a support frame, a driving component, a first movable plate, a lower pressing plate, an upper die and a lower die, the driving assembly and the lower pressing plate are both fixed to the supporting frame, the first movable plate and the lower pressing plate are oppositely arranged, the driving assembly is located above the first movable plate, and the first movable plate is driven by the driving assembly to move in the direction of the lower pressing plate; a guide mechanism for guiding the reciprocating motion of the first movable plate is arranged between the first movable plate and the lower pressing plate; the lower die is fixedly installed on the lower pressing plate, the lower die and the lower pressing plate are both provided with corresponding through holes, the top end of the upper die is fixedly connected with the first movable plate, and the first movable plate drives the bottom end of the upper die to stretch into the through hole of the lower die plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, and more specifically, to a device for sampling pole pieces. Background Art

[0002] In modern battery manufacturing engineering, the production and sample collection of pole pieces are very important steps. The pole piece is the core component that plays an electrochemical reaction role in the battery, and its manufacturing quality and characteristics directly affect the performance of the battery. Therefore, regular sample collection and analysis of the pole piece are indispensable links in the battery manufacturing process, which helps to grasp the actual manufacturing situation of the pole piece in real time and effectively ensure the stability of the overall battery quality.

[0003] Currently, most common pole piece samplers on the market adopt a cutting and pressing design on a cutting board. This kind of sampler mainly cuts the pole piece through the blade on the mechanism to take the sample piece that needs to be tested. This kind of equipment has a relatively simple structure and is easy to operate, and can meet the sampling requirements of pole piece samples in the production process to a certain extent. However, with the increasing refinement of battery technology and manufacturing processes, the problems of the cutting and pressing pole piece sampler on the cutting board gradually emerge. It is mainly manifested in the following two aspects: First, after the pole piece is cut and pressed, it often gets stuck at the inner edge of the sampler and cannot fall off by itself. Especially for pole pieces with thinner or softer textures, this problem is more serious. This makes it necessary for the operator to spend extra time and effort to take out the sample piece from the blade after each cutting and sampling, thus greatly reducing the sampling efficiency. In the process of high-intensity and large-batch production, this low efficiency will greatly affect the production rhythm and damage the production efficiency.

[0004] Secondly, because the cutting and pressing sampler on the cutting board directly contacts and shears the surface of the pole piece during the sampling process, obvious knife marks often remain on the surface of the pole piece after cutting. This not only affects the integrity of the sample, may have an impact on subsequent tests and analyses, but also may damage the integrity of the pole piece itself. In order to ensure the sampling quality, it is often necessary to replace the cutting board, which undoubtedly increases the use cost of the equipment and improves the production difficulty. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a device for sampling pole pieces. By using the downward inertia brought by the rapid punching of the driving mechanism, the pole piece can fall naturally during sampling, and the pole piece is prevented from being stuck in the inner edge. Then, by adopting multiple groups of synchronous punching dies, the efficiency is improved. Through the optimized cooperation of the upper and lower dies, the need for a traditional cutting board is eliminated, thereby greatly reducing the maintenance and replacement costs.

[0006] The technical solution adopted by the present utility model to solve its technical problems is: a device for sampling pole pieces, the improvement lies in that it includes a support frame, a driving assembly, a first movable plate, a lower pressing plate, an upper mold and a lower mold;

[0007] The driving assembly and the lower pressing plate are both fixed on the support frame: the first movable plate is arranged opposite to the lower pressing plate, and the driving assembly is located above the first movable plate, and the first movable plate is driven to move towards the lower pressing plate by the driving assembly; a guiding mechanism for guiding the reciprocating movement of the first movable plate is arranged between the first movable plate and the lower pressing plate; the lower mold is fixedly installed on the lower pressing plate, and the lower mold and the lower pressing plate are both provided with corresponding through holes: the top end of the upper mold is fixedly connected to the first movable plate, and the bottom end of the upper mold is driven by the first movable plate to extend into the through hole of the lower template.

[0008] In the above structure, the lower mold is provided with a material discharging port, the material discharging port is vertically arranged with respect to the through hole of the lower mold, a discharging hole is arranged at a position from the bottom of the lower mold to near the material discharging port, and the diameter of the discharging hole is larger than the diameter of the original through hole of the lower mold.

[0009] In the above structure, the support frame includes a top plate, a bottom plate and side plates, the two ends of the top plate and the bottom plate are fixedly connected by the side plates, and the top plate and the bottom plate are arranged in parallel.

[0010] In the above structure, the top of the lower pressing plate is flush with the bottom edge of the material discharging port of the lower mold.

[0011] In the above structure, the guiding mechanism includes a guiding column, a limiting spring and a limiting column, the guiding column is arranged between the first movable plate and the lower pressing plate, the limiting spring is sleeved on the guiding column, one end is fixedly connected to the first movable plate, the other end is fixedly connected to the lower pressing plate, the limiting column is sleeved outside the limiting spring, and the length of the limiting column is less than the length of the upper mold.

[0012] In the above structure, the device for sampling pole pieces further includes a second movable plate, the second movable plate is sleeved on a plurality of guiding columns, and the second movable plate is fixedly connected to the bottom of the first movable plate.

[0013] In the above structure, the device for sampling pole pieces further includes a buffer plate, and the buffer plate is fixedly connected to the top of the first movable plate.

[0014] In the above structure, the driving assembly includes an air cylinder and a pneumatic hand valve, the air cylinder and the pneumatic hand valve are fixedly installed on the support frame, and the air cylinder drives the first movable plate to move towards the lower pressing plate.

[0015] In the above structure, a filter pressure regulator is installed on the side of the support frame.

[0016] In the above structure, a plurality of support blocks are installed at the bottom of the support frame.

[0017] The beneficial effects of the present utility model are as follows: By utilizing the downward inertia brought by the rapid punching of the driving mechanism, the pole piece can fall naturally during sampling, and the pole piece is prevented from being stuck in the inner cutting edge. Then, by adopting multiple groups of synchronous punching dies, the efficiency is improved. Through the optimized cooperation of the upper and lower dies, the need for a traditional cutting board is eliminated, thereby greatly reducing the maintenance and replacement costs. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a device for sampling pole pieces of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the lower die of a device for sampling pole pieces of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the bottom surface of the lower die of a device for sampling pole pieces of the present utility model. Detailed Embodiments

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and drawings to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not refer only to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present utility model can be combined with each other without conflicting with each other.

[0023] Referring to Figures 1 to 3 As shown, the present utility model discloses a device for sampling pole pieces. Specifically, the mechanism includes a driving component, a support frame, a first movable plate 50, a guide post 60, an upper die 70, a lower die 80 and a guiding mechanism;

[0024] The support frame includes a top plate 20, a bottom plate 30, and side plates 40. The two ends of the top plate 20 and the bottom plate 30 are fixedly connected by the side plates 40, and the top plate 20 and the bottom plate 30 are arranged in parallel. The first movable plate 50, the guide posts 60, the upper die 70, the lower die 80, and the guiding mechanism are arranged between the top plate 20 and the bottom plate 30. The driving assembly is fixedly installed on the top plate 20, and the output end of the driving assembly passes through the top plate 20 and faces the first movable plate 50. The first movable plate 50 is driven by the driving assembly to move towards the direction of the lower pressing plate 301. The guide posts 60 are arranged at both ends of the first movable plate 50, and the other ends of the guide posts 60 are fixedly connected to the bottom plate 30. The guiding mechanism is installed on the guide posts 60. The second movable plate 501 is sleeved on a plurality of guide posts 60, and the second movable plate 501 is fixedly connected to the bottom of the first movable plate 50. The arrangement of the guide posts 60 ensures that the first movable plate 50 can move in a preset direction under the push of the driving assembly, preventing damage to the equipment or reduction of the sampling success rate due to movement deviation. Three of the lower dies 80 are fixedly installed on the bottom plate 30. Both the lower die 80 and the bottom plate 30 are provided with through holes, and the through hole of the lower die 80 is communicated with the through hole of the bottom plate 30. The upper die 70 is cylindrical. One ends of the three upper dies 70 are fixedly connected to the first movable plate 50. By pushing the first movable plate 50 by the driving assembly, the other ends of the upper dies 70 enter the lower die 80 through the through hole of the lower die 80 to take materials.

[0025] Further, the lower die 80 is provided with a material discharge port 100, and the material discharge port 100 is vertically arranged with respect to the through hole of the lower die 80. In this way, when the pole piece sampling device completes the sampling operation, the remaining wafers can be immediately taken out from the material discharge port 100, which is convenient for subsequent processing and separation, and can avoid blockage during the working process. An outlet hole 1001 is arranged at a position from the bottom of the lower die 80 to near the material discharge port 100, and the diameter of the outlet hole 1001 is larger than the diameter of the original through hole of the lower die 80. Such a design is conducive to making full use of the space of the lower die 80 and improving the discharging efficiency. The outlet hole 1001 is beneficial to ensuring smooth discharging, reducing the resistance and friction of the material during the discharging process, and better protecting the integrity of the sample. The lower pressing plate 301 is provided with a through hole that just accommodates the lower die 80, and is fixedly installed on the bottom plate 30. The top of the lower pressing plate 301 is flush with the bottom edge of the material discharge port 100 of the lower die 80. This design ensures the stability of the lower die 80, prevents shaking or loosening during the operation, and guarantees the stability and accuracy of the sampling operation.

[0026] In this embodiment, the driving assembly includes a cylinder 101 and a pneumatic valve 102. The cylinder 101 and the pneumatic valve 102 are fixedly installed on the top plate 20. By operating the pneumatic valve 102, the air source switch of the cylinder 101 can be controlled, and thus the telescopic movement of the cylinder 101 can be controlled. The guiding mechanism includes a limiting spring 901 and a limiting column 902. The limiting spring 901 is sleeved on the guiding column, with one end fixedly connected to the first movable plate 50 and the other end fixedly connected to the lower pressing plate 301. When the cylinder 101 pushes the first movable plate 50 to move, the limiting spring 901 can absorb and relieve the impact force generated by the movement, reduce the impact on other parts of the device, improve the service life of this equipment, and can also utilize the resilience of the limiting spring to lift the first movable plate and reset the upper mold. The limiting column 902 is sleeved on the periphery of the limiting spring 901, and the length of the limiting column 902 is less than the length of the upper mold 70. Such a design ensures that during the movement of the equipment, the upper mold 70 will not exceed the range set by the limiting column 902, that is, it plays a role in position limitation and prevents equipment damage and working failures that may be caused by excessive movement. A plurality of support blocks 302 are installed at the bottom of the bottom plate 30. Here, the plurality of support blocks 302 can more effectively absorb the vibration generated during the operation of the equipment, reduce the impact on the surrounding environment, and reduce noise.

[0027] The polar plate sampling device further includes a buffer plate 201. The buffer plate 201 is arranged between the top plate and the first movable plate 50 and is fixedly connected to the top of the first movable plate 50, playing a role in shock absorption and protecting the equipment. A filter pressure regulator 401 is installed on the side plate 40. The main function of the filter pressure regulator 401 is to filter and regulate the pressure of the working medium entering the cylinder 101, so as to ensure the cleanliness of the working medium and the stability of the pressure. The function of filtration is to filter out solid impurities in the air source to prevent the impurities from entering the cylinder 101 and causing wear to components such as the upper mold 70 and the lower mold 80. The function of pressure regulation is to precisely regulate the working pressure to ensure the smooth operation of the cylinder 101 and the safety of the equipment.

[0028] In actual operation, first, the polar plate is placed into the feeding port 100, and then compressed air is connected to the pneumatic valve 102 through the filter pressure regulator 401. Then, the pneumatic valve 102 is turned to the left to control the downward movement of the cylinder 101, so that the first movable plate 50 and the second movable plate 501 move vertically downward along the 4 guiding columns 60 on both sides, driving the upper mold 70 to punch downward. The punching stroke is controlled by the distance between the limiting column 902 installed on the first movable plate 50 in the limiting spring 901 and the lower pressing plate 301. Then, the punched sample naturally falls from the discharge hole 1001 due to the downward inertia and gravity, and a receiving plate can be placed below the discharge hole 1001 for convenient taking.

[0029] Next, the pneumatic hand valve 102 is turned to the right to control the cylinder 101 to move upward back to the origin. Then, the upper first movable plate 50, the upper second movable plate 501, and the upper die 70 move upward along the four guide columns 60 on both sides under the elastic force of the limiting spring 901 and are pushed against the buffer block to return to the origin.

[0030] The beneficial effects of the present utility model are as follows: By utilizing the downward inertia brought about by the rapid punching of the driving mechanism, the pole piece can fall naturally during sampling, preventing the pole piece from getting stuck in the inner cutting edge. Moreover, by adopting multiple groups of synchronous punching dies, the efficiency is improved. Through the optimized cooperation of the upper and lower dies, the need for a traditional cutting board is eliminated, thereby significantly reducing the maintenance and replacement costs.

[0031] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A device for sampling a pole piece, characterized in that: It includes a support frame, a driving assembly, a first movable plate, a lower pressing plate, an upper mold and a lower mold; The driving assembly and the lower pressing plate are both fixed on the support frame: the first movable plate is arranged opposite to the lower pressing plate, and the driving assembly is located above the first movable plate, and the first movable plate is driven to move toward the direction of the lower pressing plate by the driving assembly; a guiding mechanism for guiding the reciprocating motion of the first movable plate is arranged between the first movable plate and the lower pressing plate; the lower mold is fixedly mounted on the lower pressing plate, and the lower mold and the lower pressing plate are both provided with corresponding through holes: the top end of the upper mold is fixedly connected to the first movable plate, and the bottom end of the upper mold is driven by the first movable plate to extend into the through hole of the lower template.

2. A device for sampling a pole piece according to claim 1, characterized in that: The lower mold is provided with a discharge port, which is arranged perpendicularly to the through hole of the lower mold. A discharge hole is arranged at the bottom of the lower mold to a position close to the discharge port, and the diameter of the discharge hole is larger than the original diameter of the through hole of the lower mold.

3. The device for sampling a pole piece according to claim 1, characterized in that: The support frame includes a top plate, a bottom plate and side plates. Both ends of the top plate and the bottom plate are fixedly connected by the side plates, and the top plate and the bottom plate are arranged in parallel.

4. The device for sampling a pole piece according to claim 1, characterized in that: The top of the lower pressing plate is flush with the bottom edge of the lower die discharge port.

5. The device for sampling a pole piece according to claim 1, characterized in that: The guide mechanism includes a guide column, a limit spring and a limit column. The guide column is arranged between the first movable plate and the lower pressure plate. The limit spring is sleeved on the guide column, one end of which is fixedly connected to the first movable plate, and the other end is fixedly connected to the lower pressure plate. The limit column is sleeved on the outer periphery of the limit spring, and the length of the limit column is less than the length of the upper mold.

6. The device for sampling a pole piece according to claim 5, characterized in that: The electrode sampling device also includes a second movable plate, which is sleeved on a plurality of guide posts and fixedly connected to the bottom of the first movable plate.

7. The device for sampling a pole piece according to claim 1, characterized in that: The electrode sampling device also includes a buffer plate, which is fixedly connected to the top of the first movable plate.

8. The device for sampling a pole piece according to claim 1, characterized in that: The driving assembly includes a cylinder and a pneumatic hand valve, and the cylinder and the pneumatic hand valve are fixedly mounted on the support frame. The cylinder drives the first movable plate to move in the direction of the lower pressing plate.

9. The device for sampling a pole piece according to claim 1, characterized in that: A filter pressure regulating valve is installed on the side of the support frame.

10. The device for sampling a pole piece according to claim 1, characterized in that: A plurality of supporting blocks are installed at the bottom of the supporting frame.

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