Battery pole sheet cutting mechanism

By using the fixed boss on the support block and the air extraction port of the air extraction unit in the battery pole cutting mechanism to set and pump the coating, the problem of inaccurate cutting edge caused by melt coating diffusion is solved, and a higher cutting accuracy is achieved.

CN118926724BActive Publication Date: 2025-02-28ANHUI TONGLING TECH NEW ENERGY CO LTD
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Patent Information

Application Number
CN202411068213.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-02-28
Estimated Expiration
2044-08-06

AI Technical Summary

Technical Problem

When laser cutting of the lithium battery electrode sheet, the molten coating is easily diffused when blown by inert gas, resulting in corrugated shapes on the cutting edges and reducing the contour accuracy of the electrode.

Method used

A battery pole cutting mechanism is designed, and the coating is set with multiple fixed bosses on the support block, and continuously pumping through the suction duct and the air outlet of the air extraction unit to absorb the slag and reduce the diffusion of the molten part.

Benefits of technology

It effectively reduces the diffusion of the molten part, improves the accuracy of the cutting edge, and enhances the contour accuracy of the extreme ears.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a battery pole piece cutting mechanism, including a coating and laser cutting head that moves with a transmission component, and also includes a supporting mechanism, which includes a supporting block, on which fixed bosses are arranged in a linear array, a suction channel fixedly connected to a vacuum unit is opened in the supporting block, and a vacuum port inclined toward the fixed boss is opened on the vacuum channel, and the coating moves with the transmission component to multiple fixed bosses. Specifically, it relates to pole piece cutting equipment, when the laser cutting head cuts the coating, the coating is supported by multiple fixed bosses on the supporting block, and at the same time, the vacuum unit is connected to multiple vacuum ports through the suction channel for continuous vacuuming, so that when the coating is melted by the laser cutting head and blown by the inert gas ejected by the laser cutting head, it will be vacuumed by the inclined vacuum port to absorb the slag and reduce the diffusion of the molten part, thereby reducing the impact on the accuracy of the cutting part.
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Description

Technical Field

[0001] The invention relates to the technical field of battery preparation, and in particular to a battery pole piece cutting mechanism. Background Art

[0002] The battery pole piece is supported by the battery coating after cutting, and the coating is provided with various metals, silicon layers and aluminum wires, etc. When the coating is cut, the pole ear of the pole piece is cut out by laser, and then the pole piece is cut by a blade.

[0003] According to patent number CN117506172B, publication (announcement) date: 2024-04-23, a high-quality lithium battery pole piece laser cutting device and method disclosed, including, a machine platform; a feeding piece, arranged on the machine platform, for conveying the coiled material along the feeding direction; wherein the rolling mechanism includes two rollers arranged oppositely, the two rollers cooperate to press the coiled material roll out of the first interval and the second interval, the second interval is distributed on both sides of the first interval, and there is a structural fault between the first interval and the second interval; the first laser cutting unit is used to separate the second interval; the second laser cutting unit is used to cut the pole ear and the fillet at the connection between the pole ear and the first interval on the first interval; the image acquisition unit is used to detect the cutting completion of the first interval, and the image acquisition unit is connected to the feeding piece signal; the cutting mechanism is used to cut the first interval into sections after cutting. The present invention can effectively improve the efficiency and quality of lithium battery pole piece cutting and preparation.

[0004] In the prior art including the above-mentioned patent, when the laser cuts the coating, the laser head will output laser to melt the coating, and at the same time, the laser head will output inert gas to blow the melted coating to remove the molten coating and achieve laser cutting. However, the support plate used to support the coating for low-power cutting lacks gas conduction ability when the melted coating is blown by the inert gas, compared to the exhaust frame (chassis) of high-power laser cutting, which makes it easy for the melted coating to diffuse, resulting in a corrugated cutting edge at the laser cutting edge, resulting in reduced contour accuracy of the pole ear. Summary of the invention

[0005] The object of the present invention is to provide a battery pole sheet cutting mechanism, aiming to solve the problem of diffusion of the molten coating when the molten coating is blown by inert gas.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a battery electrode cutting mechanism, including a coating and laser cutting head that moves with a transmission component, and also includes a supporting mechanism, which includes a supporting block, on which fixed bosses are arranged in a linear array, and a suction channel fixedly connected to a vacuum unit is opened in the supporting block, and a vacuum port is obliquely opened on the suction channel toward the fixed boss. The coating moves with the transmission component to the multiple fixed bosses and is cut by the laser cutting head.

[0007] Preferably, an air outlet passage fixedly connected to the air outlet unit is provided on the supporting block, and a floating air groove is provided on the top surface of the fixed boss. The floating air groove discharges air so that a gap exists between the coating and the fixed boss.

[0008] Preferably, the air outlet is cut by the laser cutting head to release air after the coating, and the air outlet is closed after the coating is moved by the spreading component.

[0009] Preferably, a floating tray is movably provided on the supporting block, and an opening groove corresponding to the fixed bosses is formed on the floating tray.

[0010] Preferably, a blocking tail plate is provided on the floating tray, and the floating tray is driven to flip so that the fixed boss extends out along the opening groove and opens the air outlet.

[0011] Preferably, the coating is performed along the path of the laser cutting head to cut arc cutting grooves and oblique cutting grooves to cut the tabs, and a connection point 112 exists between two adjacent sections of the cutting path.

[0012] Preferably, it also includes a floating tray rotatably connected to the support block, the coating is cut out with the laser cutting head to remove waste, and the waste hangs down along the connection point 112 to fit the floating tray and flip over.

[0013] Preferably, the transmission assembly comprises a plurality of transmission rollers and rolling tracks with parallel axes, the coating moves as the transmission rollers rotate, and the rolling tracks face toward the supporting block.

[0014] Preferably, an edge grinding assembly is also included, which includes a bending and bonding block and a rotating cover movably arranged on the bending and bonding block in a circular array, and the rotating cover is provided with raised balls, and the raised balls are stuck into the cutting path along with the coating movement.

[0015] Preferably, a slide groove is provided on the bending fitting block, a sliding block is slidably connected to the slide groove, a second spring is provided between two ends of the sliding block and the slide groove, and the rotating cover is rotatably connected to the sliding block.

[0016] In the above technical scheme, a battery electrode cutting mechanism provided by the present invention has the following beneficial effects: when the laser cutting head cuts the coating, the coating is supported by a plurality of fixed bosses on the supporting block, and at the same time, a plurality of exhaust ports are connected by an exhaust duct through an exhaust unit for continuous exhaust, so that when the coating is melted by the laser cutting head and blown by the inert gas ejected by the laser cutting head, it will be exhausted by the inclined exhaust port to absorb the slag and reduce the diffusion of the molten part, thereby reducing the impact on the accuracy of the cutting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 An overall schematic diagram provided for an embodiment of the present invention;

[0019] Figure 2 An exploded schematic diagram of an edge grinding assembly provided in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 An overall explosion diagram provided for an embodiment of the present invention;

[0022] Figure 5 An overall cross-sectional schematic diagram provided for an embodiment of the present invention;

[0023] Figure 6 A schematic cross-sectional view of a support block provided in an embodiment of the present invention;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0025] Figure 8 for Figure 6 The enlarged schematic diagram at D in the middle;

[0026] Fig. 9 An exploded schematic diagram of a supporting mechanism provided by an embodiment of the present invention;

[0027] Fig.10 for Fig. 9 The enlarged schematic diagram at C in the middle;

[0028] Fig.11 A transparent schematic diagram of a supporting block provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Coating; 11. Ear; 111. Oblique cutting groove; 112. Connection point; 113. Arc cutting groove; 2. Supporting mechanism; 21. Supporting block; 22. Connecting support plate; 201. Air outlet; 2011. Bend airway; 202. Suction channel; 203. Movable groove; 23. Floating tray; 221. Transmission belt; 231. Frame cover; 232. Sealing tail plate; 233. First spring; 24. Fixed boss; 241. Floating air groove; 242. Suction port; 25. Sealing spring; 251. Supporting spring; 4. Edging assembly; 41. Bending and fitting block; 411. Slide groove; 42. Rotating cover; 421. Raised ball; 43. Sliding block; 431. Second spring; 5. Transmission assembly; 51. Transmission roller; 52. Rolling track. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] like Figure 1-11 As shown, a battery electrode cutting mechanism includes a coating 1 and a laser cutting head that move with a transmission component 5, and also includes a supporting mechanism 2, which includes a supporting block 21, on which fixed bosses 24 are arranged in a linear array, and a suction channel 202 fixedly connected to a vacuum unit is opened in the supporting block 21, and a vacuum port 242 is obliquely opened on the suction channel 202 toward the fixed boss 24. The coating 1 moves with the transmission component 5 to multiple fixed bosses 24 and is cut by the laser cutting head.

[0033] Specifically, the supporting block 21 and the transmission component 5 are arranged on a frame composed of profiles, and multiple fixed bosses 24 correspond to multiple inclined air suction ports 242 one by one. The air suction unit (the air suction unit can be the air suction capacity converted by a vacuum generator, or the air suction capacity generated by a vacuum pump and a filter) is fixedly connected to the suction channel 202, and the suction channel 202 disperses the air suction capacity to multiple air suction ports 242. When cutting, the coating 1 is first moved to the supporting block 21 with the transmission component 5, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the air suction unit will evacuate along the inclined air suction port 242, so that the melted coating 1 will be separated from the coating 1 as the inert gas is blown and sucked by the air suction port 242, so as to avoid the diffusion of the melting point on the coating 1, thereby reducing the size of the melting path during cutting and increasing the cutting accuracy.

[0034] In the above technical solution, when the laser cutting head cuts the coating 1, the coating 1 is supported by a plurality of fixed bosses 24 on the supporting block 21, and at the same time, a plurality of exhaust ports 242 are connected by the exhaust duct 202 through the exhaust unit for continuous exhaust, so that when the coating 1 is melted by the laser cutting head and blown by the inert gas ejected by the laser cutting head, it will be exhausted by the inclined exhaust ports 242 to absorb the slag and reduce the diffusion of the molten part, thereby reducing the impact on the accuracy of the cutting part.

[0035] Furthermore, a connecting support plate 22 is provided on the supporting block 21 , and a transmission belt 221 is provided on the connecting support plate 22 . The transmission belt 221 is used to drive the cut coating 1 to move.

[0036] As an embodiment provided by the present invention, an air outlet 201 fixedly connected to the air outlet unit is opened on the supporting block 21, and a floating air groove 241 is opened on the top surface of the fixed boss 24. The floating air groove 241 releases air to form a gap between the coating 1 and the fixed boss 24.

[0037] Specifically, the air outlet unit can be a blower or a compressor, and the flotation groove 241 is a recessed groove body. The flotation groove 241 is fixedly connected to the air outlet 201. After the laser cutting head cuts the coating 1, when the coating 1 moves driven by the transmission component 5, the air outlet unit exhausts air along the multiple air outlets 201 to increase the air pressure between the flotation groove 241 and the coating 1, forming an air cushion, which is convenient for the coating 1 to move driven by the transmission component 5 and is not easily dragged by the slag, thereby protecting the coating 1.

[0038] Furthermore, a bent airway 2011 is provided between the air outlet 201 and the air floating groove 241 , and the bent airway 2011 is used to avoid the suction duct 202 to ensure the normal operation of air outlet and suction.

[0039] When cutting, the coating 1 first moves to the supporting block 21 along with the transmission component 5, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the vacuum unit will exhaust along the inclined vacuum port 242 to suck out the slag during cutting. After the cutting is completed, the gas outlet unit exhausts along multiple gas outlet channels 201 to increase the air pressure between the flotation groove 241 and the coating 1 to form an air cushion, and the coating 1 moves driven by the transmission component 5.

[0040] As an embodiment provided by the present invention, the air outlet 201 is used to discharge air after the laser cutting head cuts the coating 1, and the air outlet 201 is closed after the coating 1 is moved along with the spreading component 5.

[0041] Specifically, when the cut coating 1 moves away from the supporting block 21 along with the conveying assembly 5, the air outlet 201 is closed to stop the air outlet, and after the laser cutting head cuts the coating 1, the air outlet 201 is opened to let out air, thereby assisting the transportation of the coating 1. When the coating 1 is cut by the laser cutting head, the air outlet 201 is closed to ensure the suction of the exhaust port 242 to avoid affecting the exhaust process.

[0042] When cutting, the coating 1 first moves with the transmission component 5 to the supporting block 21. At this time, the air outlet 201 is closed to stop the air outlet, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. After the cutting is completed, the exhaust unit is opened to exhaust along multiple air outlets 201 to increase the air pressure between the floating air groove 241 and the coating 1 to form an air cushion, and the coating 1 is moved by the transmission component 5, and the air outlet 201 is closed after the movement.

[0043] As an embodiment provided by the present invention, a floating tray 23 is movably provided on the supporting block 21 , and an opening groove corresponding to the fixed boss 24 is formed on the floating tray 23 .

[0044] Specifically, a movable groove 203 is opened on the supporting block 21, and the floating tray 23 is rotatably connected to the movable groove 203. The floating tray 23 is driven to flip so that the open groove fits the fixed boss 24. At this time, the fixed boss 24 and the floating tray 23 are flush to assist in supporting the coating 1. An outer frame cover 231 is provided on the supporting block 21, and an independent space is formed between the floating tray 23, the outer frame cover 231 and the supporting block 21 to assist the airflow to enter the exhaust port 242 along the open groove and the fixed boss 24.

[0045] When cutting, the coating 1 first moves with the transmission component 5 to the floating tray 23 on the support block 21. At this time, the air outlet 201 is closed to stop the air outlet, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. The sucked air flow is sucked along the open groove, the fixed boss 24 and the exhaust port 242. After the cutting is completed, the exhaust unit opens and exhausts along multiple exhaust channels 201 to increase the air pressure between the floating groove 241 and the coating 1 to form an air cushion, and the coating 1 moves driven by the transmission component 5. After the movement, the air outlet 201 is closed.

[0046] As an embodiment provided by the present invention, a blocking tail plate 232 is provided on the floating tray 23 , and the floating tray 23 is driven to flip so that the fixed boss 24 extends along the opening groove and opens the air outlet 201 .

[0047] Specifically, a first spring 233 is provided between the blocking tail plate 232 and the movable groove 203. The first spring 233 is used to drive the floating tray 23 to flip over and maintain a parallel state. In the parallel state, the blocking tail plate 232 will block the air outlet 201 to cut off the air outlet unit and the air outlet 201. When the laser cutting is completed, the waste will sag, so that the first spring 233 is compressed and drives the blocking tail plate 232 to flip over, so that the air outlet unit and the air outlet 201 are fixedly connected.

[0048] Furthermore, a blocking spring piece 25 is provided on the floating tray 23, and a supporting spring piece 251 is provided on the blocking spring piece 25. When the coating 1 falls after being cut, the supporting spring piece 251 will be squeezed, so that the supporting spring piece 251 is deformed and squeezes the blocking spring piece 25, so that the blocking spring piece 25 is always in contact with the outer frame cover 231, so as to avoid excessive gaps when the floating tray 23 is rotated and tilted, thereby affecting the suction effect.

[0049] When cutting, the coating 1 first moves with the transmission component 5 to the floating tray 23 on the support block 21. At this time, the sealing tail plate 232 will seal the air outlet 201 to stop the air outlet, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. The sucked air flow is sucked along the opening groove, the fixed boss 24 and the exhaust port 242. After the cutting is completed, the waste will sag, so that the first spring 233 is compressed and drives the sealing tail plate 232 to flip, so that the air outlet unit is open to exhaust along multiple air outlets 201, so that the air pressure between the floating air groove 241 and the coating 1 increases to form an air cushion, and the coating 1 moves along the transmission component 5. After the movement, the uncut coating 1 enters the support block 21, so that the air outlet 201 is closed.

[0050] As an embodiment provided by the present invention, the coating 1 cuts the arc cutting groove 113 and the oblique cutting groove 111 along the path of the laser cutting head to cut the pole ear 11, and there is a connection point 112 between the two adjacent cutting paths;

[0051] It also includes a floating tray 23 that is rotatably connected to the supporting block 21 , and the coating 1 cuts out waste materials along with the laser cutting head, and the waste materials hang down along the connection point 112 to fit the floating tray 23 and flip over.

[0052] Specifically, the path of the laser cutting head is a connected arc cutting groove 113 and an oblique cutting groove 111. The purpose of the arc cutting groove 113 is to cut out the outline of the pole ear 11. There is an edge cutting groove between the arc cutting groove 113 and the oblique cutting groove 111. The edge cutting groove connects the arc cutting groove 113 and the oblique cutting groove 111. There is a connection point 112 between the adjacent arc cutting grooves 113 and the oblique cutting grooves 111. When the pole pieces are subsequently cut and separated, the connection point 112 will be cut off together to separate the waste and the pole pieces. After the pole ear 11 is cut, the waste can be retained through the connection point 112, so as to share the extrusion of the pole ear 11 when the cut coating 1 is transported through the transmission component 5, so as to avoid unevenness of the material of the pole ear 11 after being squeezed.

[0053] Furthermore, the waste material drooping along the connection point 112 will drive the floating tray 23 to flip over to achieve the opening and closing of the air outlet 201, without the need for additional electrical components for control. At the same time, the waste material can move together with the spreading component 5 and will not be retained after cutting.

[0054] When cutting, the coating 1 first moves with the transmission component 5 to the floating tray 23 on the support block 21. At this time, the sealing tail plate 232 will seal the air outlet 201 to stop the air outlet, and then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. The sucked air flow is sucked along the opening groove, the fixed boss 24 and the exhaust port 242. After the cutting is completed, the waste will sag, so that the first spring 233 is compressed and drives the sealing tail plate 232 to flip, so that the air outlet unit is open to exhaust along multiple air outlets 201, so that the air pressure between the floating air groove 241 and the coating 1 increases to form an air cushion, and the coating 1 moves along the transmission component 5. After the movement, the uncut coating 1 enters the support block 21, so that the air outlet 201 is closed.

[0055] As an embodiment provided by the present invention, the spreading assembly 5 includes a plurality of transmission rollers 51 and a rolling track 52 with parallel axes. The coating 1 moves as the transmission rollers 51 rotate, and the rolling track 52 faces the supporting block 21 .

[0056] Specifically, the transmission roller 51 is rotated by a driving unit (the driving unit may be a servo motor) to drive the coating 1 to move, and the rolling path 52 faces the supporting block 21, so that after the laser-cut part enters the supporting block 21, the coating 1 is supported by the rolling path 52, thereby providing support when the tension of the coating 1 changes after cutting, thereby avoiding a reduction in the accuracy of laser cutting due to changes in the tension.

[0057] When cutting, the coating 1 first moves with multiple transmission rollers 51 to the floating tray 23 on the supporting block 21. At this time, the coating 1 that has not been cut is in contact with the rolling path 52 and is supported by the sealing tail plate 232, which will seal the air outlet 201 to stop the air outlet. Then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. The sucked air flow is sucked along the opening groove, the fixed boss 24 and the exhaust port 242. After the cutting is completed, the waste will sag, so that the first spring 233 is compressed and drives the sealing tail plate 232 to flip, so that the air outlet unit is open to exhaust along multiple air outlets 201, so that the air pressure between the floating air groove 241 and the coating 1 is increased to form an air cushion, and the coating 1 is driven by the transmission component 5 to move. After moving, the uncut coating 1 enters the supporting block 21 to close the air outlet 201.

[0058] As the best embodiment provided by the present invention, it also includes an edge grinding assembly 4, which includes a bending and laminating block 41 and a rotating cover 42 movably arranged on the bending and laminating block 41 in a circular array, and a protruding ball 421 is arranged on the rotating cover 42, and the protruding ball 421 moves with the coating 1 and is stuck into the cutting path;

[0059] The bending and fitting block 41 is provided with a slide groove 411 , and a sliding block 43 is slidably connected to the slide groove 411 . A second spring 431 is provided between two ends of the sliding block 43 and the slide groove 411 . The rotating cover 42 is rotatably connected to the sliding block 43 .

[0060] Specifically, the arc axis of the inner wall of the curved laminating block 41 coincides with the central axis of one of the driving rollers 51 (with Figure 5 For reference, the transmission roller 51 at the lower end), the sliding block 43 slides on the slide groove 411, and when the cut coating 1 moves, the cut part will be connected to the waste into the transmission roller 51 and the bending and fitting block 41, and the rotating cover 42 will rotate along the sliding block 43 as the coating 1 enters, until the raised ball 421 moves with the coating 1 and is stuck in the cutting path (the cutting path is the arc cutting groove 113, the edge cutting groove or the oblique cutting groove 111), and as the coating 1 continues to move, the raised ball 421 will move along the cutting path to compress or stretch the two second springs 431, so that the sliding block 43 slides in the slide groove 411, and the slag remaining on the cutting path is rubbed by the moving raised ball 421.

[0061] When cutting, the coating 1 first moves with the multiple driving rollers 51 to the floating tray 23 on the supporting block 21. At this time, the coating 1 that has not been cut is attached to the rolling path 52 and is supported by the sealing tail plate 232, which will block the outlet 201 to stop the gas outlet. Then the laser cutting head outputs laser and inert gas to melt and cut the coating 1. At this time, the exhaust unit will exhaust along the inclined exhaust port 242 to suck the slag during cutting. The sucked air flow is sucked along the open groove, the fixed boss 24 and the exhaust port 242. After the cutting is completed, the waste will sag to compress the first spring 233 and drive The sealing tail plate 232 is flipped to open the air outlet unit to discharge air along multiple air outlet channels 201, so that the air pressure between the flotation tank 241 and the coating 1 is increased to form an air cushion, and the coating 1 is moved by the transmission component 5. After the movement, the uncut coating 1 enters the supporting block 21 to close the air outlet channel 201. At the same time, the cut coating 1 enters the transmission roller 51 and the bending and fitting block 41. The raised ball 421 will move along the cutting path to compress or stretch the two second springs 431, so that the sliding block 43 slides in the slide groove 411, and the slag remaining on the cutting path is rubbed by the moving raised ball 421.

[0062] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A battery electrode cutting mechanism, comprising a coating (1) and a laser cutting head moving with a transmission component (5), characterized in that: It also includes a supporting mechanism (2), which includes a supporting block (21), the supporting block (21) being provided with fixed bosses (24) in a linear array, the supporting block (21) being provided with a suction channel (202) fixedly connected to a suction unit, the suction channel (202) being provided with a suction port (242) inclined toward the fixed bosses (24), the coating (1) being moved to the plurality of fixed bosses (24) along with the spreading component (5) and being cut by a laser cutting head; The support block (21) is provided with an air outlet passage (201) fixedly connected to the air outlet unit, and the top surface of the fixed boss (24) is provided with a floating air groove (241), and the floating air groove (241) releases air so that a gap exists between the coating (1) and the fixed boss (24); The air outlet (201) exhausts air after the laser cutting head cuts the coating (1), and the air outlet (201) is closed after the coating (1) is moved by the spreading component (5); A floating tray (23) is movably provided on the supporting block (21), and an opening groove corresponding to the fixed boss (24) is provided on the floating tray (23); A blocking tail plate (232) is provided on the floating tray (23), and the floating tray (23) is driven to flip so that the fixed boss (24) extends along the opening groove and opens the air outlet (201); The coating (1) cuts a circular cutting groove (113) and an oblique cutting groove (111) along the path of the laser cutting head to cut out the pole lug (11), and a connection point (112) exists between two adjacent sections of the cutting path; It also includes a floating tray (23) rotatably connected to the support block (21), wherein the coating (1) cuts waste materials along with the laser cutting head, and the waste materials hang down along the connection point (112) to fit the floating tray (23) and flip over.

2. A battery electrode cutting mechanism according to claim 1, characterized in that: The transmission component (5) comprises a plurality of drive rollers (51) and a rolling track (52) whose axes are parallel to each other. The coating (1) moves as the drive rollers (51) rotate, and the rolling track (52) faces the supporting block (21).

3. A battery electrode cutting mechanism according to claim 1, characterized in that: It also comprises an edge grinding assembly (4), which comprises a bending and fitting block (41) and a rotating cover (42) movably arranged on the bending and fitting block (41) in a circular array, wherein the rotating cover (42) is provided with a protruding ball (421), and the protruding ball (421) moves with the coating (1) and is inserted into the cutting path.

4. A battery electrode cutting mechanism according to claim 3, characterized in that: The bending and fitting block (41) is provided with a sliding groove (411), the sliding groove (411) is slidably connected to a sliding block (43), a second spring (431) is provided between two ends of the sliding block (43) and the sliding groove (411), and the rotating cover (42) is rotatably connected to the sliding block (43).

Citation Information

Patent Citations

  • A high-quality lithium battery pole piece laser cutting device and method

    CN117506172B

  • Laser cutting device for battery tab

    CN110153569A

  • Laser cutting non-contact surface dust removal equipment and dust removal method thereof

    CN116810196A