Pole piece fillet cutting device

Abstract

The utility model discloses a pole piece round corner cutting device which comprises a supporting seat, a driver and a cutter assembly, the cutter assembly comprises a cutter seat and a cutter, the cutter seat is installed at a preset position of the supporting seat and is of a hollow structure with an opening in the top, the driver is installed at the top of the supporting seat, and the cutter seat is of a hollow structure with an opening in the top. The cutter is installed on the driver, at least part of the cutter is contained in the cutter base in the vertical direction, the driver is used for driving the cutter to be close to or away from the cutter base in the vertical direction, a notch is formed in one side of the cutter and used for containing a cut corner of a pole piece, the outer layer of the notch is of a cambered surface structure, and the cutter is of a hollow structure; when the pole piece needs to be subjected to round corner cutting, the right angle to be cut of the pole piece is placed in the notch of the cutter, the driver drives the cutter to move towards the bottom face of the cutter base, under the combined action of the cutter and the cutter base, the right angle of the pole piece is cut off, a round corner is formed, the whole round corner cutting process is automatically completed through the pole piece round corner cutting device, and the round corner cutting efficiency of the pole piece is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of corner rounding devices, specifically a corner rounding device for electrode sheets. Background Technology

[0002] In battery manufacturing, electrodes are a crucial component. The edge condition of the electrodes significantly impacts battery performance and safety. Electrodes without rounded corners are prone to puncturing the separator during battery assembly and use, leading to short circuits and other malfunctions, severely affecting battery life and safety. Therefore, rounding the right-angled edges of the electrodes is essential. However, current electrode rounding is typically done manually, resulting in low efficiency and increased labor costs. Utility Model Content

[0003] Therefore, it is necessary to provide a device for rounding the corners of electrode sheets. This can solve the problem of low efficiency in rounding the corners of electrode sheets.

[0004] A device for rounding the corners of an electrode sheet includes a support base, a driver, and a cutting assembly. The cutting assembly includes a cutting base and a cutting blade. The cutting base is installed at a predetermined position on the support base and is a hollow structure with an open top. The driver is installed on the top of the support base. The cutting blade is installed on the driver and is at least partially housed within the cutting base in the vertical direction. The driver is used to drive the cutting blade to move closer to or away from the cutting base in the vertical direction. A slit is provided on one side of the cutting blade for accommodating the corner of the electrode sheet. The outer layer of the slit is an arc-shaped structure, and the cutting blade is a hollow structure.

[0005] In one embodiment, the electrode rounding device includes a waste recycling component, which is installed on the support at a preset angle and communicates with the cutter seat. The waste recycling component is a hollow structure with openings at both ends.

[0006] In one embodiment, the cutter has a discharge port at one end near the waste recycling component, and the discharge port is connected to one end of the waste recycling component when cutting rounded corners.

[0007] In one embodiment, the cutter has a beveled structure, the top edge of which abuts against the inner layer of the cutter, and the bottom edge of which abuts against the bottom edge of the discharge port, so that the electrode sheet to be cut off slides from the beveled structure into the discharge port.

[0008] In one embodiment, the electrode rounding device further includes a receiving box located below the waste recycling component.

[0009] In one embodiment, the electrode rounding device further includes a detector mounted at one end of the support base for detecting whether there is an electrode with rounded corners.

[0010] In one embodiment, the bottom of the cutter holder has a buffer spring.

[0011] In one embodiment, the actuator is either a cylinder or an electric cylinder.

[0012] The aforementioned electrode rounding device, through the coordinated arrangement of a support base, a driver, a cutter holder, and a cutter, allows the electrode to be rounded when the right angle to be cut is placed into the cut of the cutter when the electrode needs to be rounded. The driver then moves the cutter toward the bottom surface of the cutter holder. Under the combined action of the cutter and the cutter holder, the right angle of the electrode is cut off, forming a rounded corner. The entire rounding process is completed automatically by the electrode rounding device, which improves the efficiency of rounding the electrode and also saves labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly structure of the electrode fillet cutting device according to an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A side view of the electrode rounding device according to an embodiment of the present invention;

[0015] Figure 3 for Figure 1 A cross-sectional view of an embodiment of the electrode rounding device of this utility model. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be 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.

[0017] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figure 1 , Figure 2 As shown, an electrode rounding device includes a support base 1, a driver 2, and a cutter assembly 3. The cutter assembly 3 includes a cutter seat 31 and a cutter 32. The cutter seat 31 is installed at a preset position on the support base 1 and is a hollow structure with an open top. The driver 2 is installed on the top of the support base 1. The cutter 32 is installed on the driver 2 and is at least partially housed within the cutter seat 31 in the vertical direction. The driver 2 is used to drive the cutter 32 to move closer to or away from the cutter seat 31 in the vertical direction. A cut 321 is provided on one side of the cutter 32 for accommodating the cut corner of the electrode. The outer layer of the cut 321 is an arc surface structure, and the cutter 32 is a hollow structure.

[0020] The actuator 2 is either a pneumatic cylinder or an electric pneumatic cylinder. When the cutter 32 approaches the cutter holder 31 in the vertical direction, it is tangent to the inner layer of the cutter holder 31, thus completing the rounding of the electrode.

[0021] When the electrode is rounded, the electrode feeder inserts the right angle of the electrode to be cut into the cut 321. The bottom surface of the electrode abuts against the top edge of the cutter holder 31. The cut 321 and the interior of the cutter holder 31 are connected. The driver 2 drives the cutter 32 to move along the inner layer of the cutter holder 31 towards the bottom surface of the cutter holder 31. Under the combined force of the cutter 32 and the top edge of the cutter holder 31, the electrode is squeezed off. Because the outer layer of the cut 321 is an arc surface structure, the right angle of the electrode is cut into a rounded shape, thus completing the rounding of the electrode.

[0022] In this way, the electrode rounding device, through the cooperation of the support base 1, the driver 2, the cutter base 31 and the cutter 32, when the electrode needs to be rounded, puts the right angle of the electrode to be cut into the cutting opening 321 of the cutter 32. The driver 2 drives the cutter 32 to move towards the bottom surface of the cutter base 31. Under the joint action of the cutter 32 and the cutter base 31, the right angle of the electrode is cut off to form a rounded corner. The entire rounding process is automatically completed by the electrode rounding device, which improves the efficiency of the electrode rounding and also saves labor costs.

[0023] In one embodiment, the electrode rounding device includes a waste recycling component 4, which is installed on the support base 1 at a preset angle and communicates with the cutter base 31. The waste recycling component 4 is a hollow structure with openings at both ends.

[0024] like Figure 3 As shown, the cutter 32 has a discharge port 322 at one end near the waste recycling component 4, and the discharge port 322 is connected to one end of the waste recycling component 4 when cutting rounded corners.

[0025] The cutter 32 has an inclined structure 323 inside. The top edge of the inclined structure 323 abuts against the inner layer of the cutter 32, and the bottom edge of the inclined structure 323 abuts against the bottom edge of the discharge port 322. The electrode sheet to be cut off slides from the inclined structure 323 into the discharge port 322.

[0026] In this way, the waste recycling component 4 is set at an angle, and the discharge port 322 is connected to one end of the waste recycling component 4 when the rounded corner is cut. The height of the discharge port 322 in the vertical direction is lower than the height of the cut 321. When the top edge of the cutter 32 and the cutter seat 31 work together to break the electrode sheet, the cut electrode waste will fall onto the inclined structure 323. After the cut electrode waste slides down from the inclined structure 323, it enters the waste recycling component 4 through the discharge port 322 and then slides into the collection box 5. The collection box 5 is located below the waste recycling component 4, thus completing the recycling of the cut electrode waste.

[0027] In one embodiment, the electrode rounding device further includes a detector 6, which is mounted on one end of the support 1 and is used to detect whether there is an electrode with rounded corners.

[0028] In this way, there is another right angle on the side of the electrode that does not need to be cut at the same time as the right angle to be cut on the side of the electrode to be cut. When the electrode feeder sends the right angle to be cut into the cut 321, the right angle on the side of the electrode to be cut is sent into the detector 6. When the detector 6 detects the right angle on the side of the electrode to be cut, it sends a control signal to the control module. The control module controls the feeder to stop and determines that the electrode with the right angle to be cut has been sent into the preset position of the cut 321.

[0029] In one embodiment, the bottom of the cutter holder 31 has a buffer spring 7.

[0030] In this way, as the cutter 32 moves toward the cutter holder 31, it comes into contact with the buffer spring 7. The buffer spring 7 can provide a certain buffering effect for the cutter 32, preventing the cutter 32 from making hard contact with the bottom surface of the cutter holder 31 and avoiding damage to the cutter 32.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for rounding the corners of an electrode sheet, characterized in that: The device includes a support base, a driver, and a cutter assembly. The cutter assembly includes a cutter holder and a cutter. The cutter holder is installed at a preset position on the support base and is a hollow structure with an open top. The driver is installed on the top of the support base. The cutter is installed on the driver and is at least partially housed within the cutter holder in the vertical direction. The driver is used to drive the cutter to move closer to or away from the cutter holder in the vertical direction. A slit is provided on one side of the cutter for accommodating the chamfer of the electrode sheet. The outer layer of the slit is an arc-shaped structure. The cutter is a hollow structure.

2. The electrode rounding device according to claim 1, characterized in that: The electrode rounding device includes a waste recycling component, which is installed on the support base at a preset angle and connected to the cutter base. The waste recycling component is a hollow structure with openings at both ends.

3. The electrode fillet rounding device according to claim 2, characterized in that: The cutter has a discharge port at one end near the waste recycling component, and the discharge port is connected to one end of the waste recycling component when cutting rounded corners.

4. The electrode fillet rounding device according to claim 3, characterized in that: The cutter has an inclined structure inside, the top edge of the inclined structure abuts against the inner layer of the cutter, and the bottom edge of the inclined structure abuts against the bottom edge of the discharge port, so that the electrode sheet to be cut off slides from the inclined structure into the discharge port.

5. The electrode fillet rounding device according to claim 4, characterized in that: The electrode rounding device also includes a collection box, which is located below the waste recycling component.

6. The electrode fillet rounding device according to claim 1, characterized in that: The electrode rounding device also includes a detector, which is installed at one end of the support base and is used to detect whether there is an electrode with rounded corners.

7. The electrode fillet rounding device according to claim 1, characterized in that: The bottom of the cutter holder has a buffer spring.

8. The electrode fillet rounding device according to claim 1, characterized in that: The actuator is either a pneumatic cylinder or an electric pneumatic cylinder.

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