A laser-guided self-adaptive deviation correction and slitting mechanism for lithium battery aluminum foil

Abstract

The utility model discloses a laser guide self -adaptation deviation correction slitting mechanism of lithium battery aluminium foil, and the utility model relates to lithium battery aluminium foil production technical field. The laser guide self -adaptation deviation correction slitting mechanism of lithium battery aluminium foil includes the bottom plate, and the top of bottom plate is provided with the slitting mechanism for cutting material and is to material deviation correction while cutting, the slitting mechanism includes: deviation correction subassembly, including fixed mounting in the top of bottom plate's support frame, the top movable mounting of support frame has the limit wheel, the top fixed mounting of support frame has the support seat, the inboard of limit wheel is inlayed and is installed with movable frame, when laser module detects the deviation, and the step motor is driven to drive gear rotation through the reduction gearbox, drives movable frame of semicircle ring structure to rotate under the limit of limit wheel, adjusts the inclination angle of adjusting roller, and its friction force produces lateral component force to aluminium foil, and aluminium foil is moved to the deviation reverse direction, realizes the self -adaptation deviation correction of aluminium foil.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery aluminum foil production technology, specifically a laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil. Background Technology

[0002] Battery aluminum foil is used as a current collector in lithium-ion batteries. Typically, the lithium-ion battery industry uses rolled aluminum foil as the positive electrode current collector. During the aluminum foil production process, the entire roll of aluminum foil needs to be cut into smaller widths for subsequent processing. Lithium battery aluminum foil processing cutting equipment is usually used during the cutting process.

[0003] The existing utility model patent with publication number CN216781275U discloses a cutting device for processing lithium battery aluminum foil, including a worktable. Two grinding mechanisms are symmetrically arranged at the top of the worktable. Each grinding mechanism includes a mounting frame, with two legs fixedly connected to the worktable. Grinding rollers and two pressure plates are fixedly connected to the inner wall of the mounting frame. A slag outlet is provided at the bottom of the mounting frame. An installation groove is provided inside the worktable, with a screw rotatably connected to the inner wall of the groove. A movable seat is threaded onto the outside of the screw, and a connecting plate is fixedly connected to the top of the movable seat. The bottom ends of the two legs on the right side are fixedly connected to the connecting plate. Two support plates are connected to the worktable, and a support roller is rotatably connected between the two support plates. This facilitates grinding and deburring of the slit aluminum foil, and also facilitates adhesion and chip removal of the ground aluminum foil, preventing debris from adhering to the aluminum foil. This results in high production quality and strong reliability.

[0004] The aforementioned slitting device lacks an automatic correction structure. If the aluminum foil deviates from the center of the device during the slitting process, the width of the slitting aluminum foil will be inconsistent, affecting subsequent processing. At the same time, the device cannot guarantee the tension of the aluminum foil during the cutting process, causing the aluminum foil to wrinkle, stretch, or shift due to tension fluctuations, thus affecting the cutting quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil, which solves the problems of not being able to guarantee aluminum foil tension and not being able to achieve automatic correction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A laser-guided adaptive deviation correction slitting mechanism for lithium battery aluminum foil includes a base plate, and a slitting mechanism is disposed above the base plate for cutting the material and correcting its deviation during cutting. The slitting mechanism includes:

[0007] The alignment component includes a support frame fixedly mounted on a base plate. A limit wheel is movably mounted on the top of the support frame. A support base is fixedly mounted on the top of the support frame. A movable frame is fitted inside the limit wheel. A rack is fixedly mounted at the center of the movable frame. An adjusting roller is movably mounted on the top of the movable frame. A stepper motor is fixedly mounted on the top of the base plate. A reducer is connected to the front end of the stepper motor. A drive gear is fixedly mounted on the outside of the output shaft of the reducer. A protective shell is provided on the top of the support frame.

[0008] The tension adjustment component is mirrored on both sides of the correction component to adjust the aluminum foil tension;

[0009] The cutting assembly, located at the rear end of the base plate, is used to cut aluminum foil.

[0010] Preferably, the tension adjustment assembly includes limiting frames fixedly installed on the left and right sides of the base plate, a limiting roller movably installed at the top of the limiting frame, an electric push rod fixedly installed at the top of the limiting frame, a connecting frame fixedly installed above the electric push rod, and a pressure roller movably installed between the connecting frames.

[0011] Preferably, the tension adjustment assembly further includes a limiting block fixedly installed above the connecting frame. A guide post is fixedly installed on one side of the limiting block, and a bidirectional lead screw is inserted through the center of the limiting block. One end of the bidirectional lead screw is connected to a fine-tuning motor, and a synchronization frame is movably installed on the outside of the bidirectional lead screw. A laser module is fixedly installed below the synchronization frame.

[0012] Preferably, the cutting assembly includes limiting rods fixedly installed on both sides of the base plate, a support roller and a cutting rod are movably installed at the top of the limiting rod, a synchronous gear is fixedly installed at one end of the support roller and the cutting rod, and a drive motor is fixedly installed on one side of the limiting rod.

[0013] Preferably, the movable frame has arc-shaped grooves on both sides with a width greater than the diameter of the central shaft of the support wheel. The movable frame has a semi-circular ring structure, the center of the movable frame coincides with the center of the adjusting roller, the adjusting roller and the movable frame are rotatably connected, the drive gear and the rack mesh with each other, and the protective shell covers the drive gear and the rack.

[0014] Preferably, the limiting roller and the limiting frame are rotatably connected, the connecting frame is movably connected to the limiting frame via an electric push rod, the pressure roller and the connecting frame are rotatably connected, the synchronizing frame and the guide column are slidably connected, and the synchronizing frame and the bidirectional lead screw are connected by threads.

[0015] Beneficial effects

[0016] This invention provides a laser-guided adaptive correction and slitting mechanism for aluminum foil used in lithium batteries. Compared with the prior art, it has the following advantages:

[0017] (1) The laser-guided adaptive correction slitting mechanism for lithium battery aluminum foil stabilizes the aluminum foil tension through the synergistic effect of the tension adjustment components. The electric push rod can flexibly adjust the height of the connecting frame and the pressure roller. The pressure roller, limit roller, and adjustment roller work together to adjust the tension by changing the pressure on the aluminum foil, avoiding wrinkles caused by insufficient tension or stretching caused by excessive tension. At the same time, the fine-tuning motor drives the bidirectional lead screw to rotate, and the synchronous frame moves synchronously under the limit of the guide column, ensuring that the laser module is always accurately aligned with the edge of the aluminum foil, monitoring the aluminum foil status in real time, and dynamically optimizing the tension in conjunction with pressure adjustment to reduce the impact of tension fluctuations on the slitting quality.

[0018] (2) The laser-guided adaptive correction and cutting mechanism for the lithium battery aluminum foil achieves automatic correction through a closed-loop combination of laser detection and mechanical adjustment. The laser module illuminates the edge of the aluminum foil in real time, and uses the change in the intensity of reflected light to identify the direction and degree of aluminum foil offset. When offset is detected, the stepper motor drives the drive gear to rotate via the reducer. The drive gear meshes with the rack on the movable frame, causing the movable frame of the semi-circular ring structure to rotate under the restriction of the limit wheel, so that the adjustment roller at the top of the movable frame adjusts the tilt angle with its own center as the reference. After the adjustment roller forms an angle with the longitudinal movement direction of the aluminum foil, its frictional force on the aluminum foil generates a lateral component force, pushing the aluminum foil to move in the opposite direction of offset, thus realizing the adaptive correction of the aluminum foil. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the adjusting roller of this utility model;

[0021] Figure 3 This is a schematic diagram of the pressure roller mounting structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the cutting rod of this utility model;

[0023] In the diagram: 1. Base plate; 2. Slitting mechanism; 21. Correction assembly; 211. Support frame; 212. Limiting wheel; 213. Support base; 214. Movable frame; 215. Rack; 216. Adjusting roller; 217. Stepper motor; 218. Reducer; 219. Drive gear; 2110. Protective shell; 22. Tension adjustment assembly; 221. Limiting frame; 222. Limiting roller; 223. Electric actuator; 224. Connecting frame; 225. Pressure roller; 226. Limiting block; 227. Guide column; 228. Bidirectional lead screw; 229. Fine-tuning motor; 2210. Synchronizing frame; 2211. Laser module; 23. Cutting assembly; 231. Limiting rod; 232. Support roller; 233. Cutting roller; 234. Synchronizing gear; 235. Drive motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a laser-guided adaptive deviation correction slitting mechanism for lithium battery aluminum foil includes a base plate 1, and a slitting mechanism 2 is arranged above the base plate 1 for cutting materials and correcting deviations of the materials during cutting. The slitting mechanism 2 includes:

[0026] The correction assembly 21 includes a support frame 211 fixedly mounted above the base plate 1. A limit wheel 212 is movably mounted on the top of the support frame 211. A support base 213 is fixedly mounted above the support frame 211. A movable frame 214 is fitted inside the limit wheel 212. A rack 215 is fixedly mounted at the center of the movable frame 214. An adjusting roller 216 is movably mounted on the top of the movable frame 214. A stepper motor 217 is fixedly mounted above the base plate 1. A reducer 218 is connected to the front end of the stepper motor 217. A drive gear 219 is fixedly installed on the outside of the output shaft of the reducer 218. A protective shell 2110 is provided above the support frame 211. Arc-shaped sliding grooves with a width greater than the diameter of the central shaft of the support wheel are provided on both sides of the movable frame 214. The movable frame 214 has a semi-circular ring structure. The center of the movable frame 214 coincides with the center of the adjusting roller 216. The adjusting roller 216 and the movable frame 214 form a rotatable connection. The drive gear 219 and the rack 215 mesh with each other. The protective shell 2110 covers the drive gear 219 and the rack 215.

[0027] Specifically, the stepper motor 217 drives the reducer 218, which in turn drives the drive gear 219 to rotate. The drive gear 219 meshes with the rack 215 at the center of the inner wall of the movable frame 214. Since the position of the movable frame 214 is restricted by the limit wheels 212 on both sides of the support frame 211, the outer side of the movable frame 214 contacts the ball bearings above the support seats 213 on both sides of the support frame 211. The movable frame 214 can rotate under the drive of the drive gear 219, causing the adjusting roller 216 at the top of the movable frame 214 to rotate around its own center. The tilt direction of the adjusting roller 216 is adjusted according to the offset direction of the aluminum foil, forming an angle with the longitudinal movement direction of the aluminum foil. At this time, the friction force of the roller on the aluminum foil generates a leftward lateral force. Under the action of this lateral force, the aluminum foil will overcome its own inertia and running resistance and move in the opposite direction of the offset to correct the aluminum foil.

[0028] Tension adjustment assembly 22, mirror-mounted on both sides of the correction assembly 21, adjusts the aluminum foil tension. Tension adjustment assembly 22 includes limiting frames 221 fixedly installed on the left and right sides of the base plate 1. A limiting roller 222 is movably installed at the top of the limiting frame 221. An electric push rod 223 is fixedly installed at the top of the limiting frame 221. A connecting frame 224 is fixedly installed above the electric push rod 223. A pressure roller 225 is movably installed between the connecting frames 224. Tension adjustment assembly 22 also includes a limiting block 226 fixedly installed above the connecting frame 224. A guide post 227 is fixedly installed on one side of the limiting block 226. A bidirectional lead screw 228 is inserted at the center of the device. One end of the bidirectional lead screw 228 is connected to a fine-tuning motor 229. A synchronous frame 2210 is movably installed on the outside of the bidirectional lead screw 228. A laser module 2211 is fixedly installed below the synchronous frame 2210. The limiting roller 222 is rotatably connected to the limiting frame 221. The connecting frame 224 is movably connected to the limiting frame 221 through an electric push rod 223. The pressure roller 225 is rotatably connected to the connecting frame 224. The synchronous frame 2210 is slidably connected to the guide column 227. The synchronous frame 2210 and the bidirectional lead screw 228 are connected by threads.

[0029] Specifically, the limiting frame 221 is installed symmetrically on both sides of the base plate 1, with the center of the movable frame 214 as the reference. The limiting roller 222 at the top of the limiting frame 221 is flush with the adjusting roller 216. The height of the connecting frame 224 and the pressure roller 225 is adjusted by the electric push rod 223, which presses down the aluminum foil with the adjusting roller 216 and the two sides respectively, so that the aluminum foil and the adjusting roller 216 maintain a certain relative pressure. The rotation angle of the synchronous frame 2210 is limited by the guide column 227. The fine-tuning motor 229 drives the bidirectional lead screw 22 During the rotation, the bidirectional lead screw 228 can drive the synchronous frame 2210 to move to the sides or center to adjust the position of the laser module 2211 and ensure that the center distance between the laser modules 2211 on both sides and the bidirectional lead screw 228 is consistent. The laser beam of the laser module 2211 irradiates the edge of the aluminum foil, and the edge position is identified by the reflection of the laser by the aluminum foil. The laser module 2211 has a built-in transmitter and receiver. When the laser irradiates the edge of the aluminum foil, there is a sudden change in the intensity of the reflected light on both sides of the edge. The edge position is determined by detecting this sudden change point.

[0030] The cutting assembly 23 is located at the rear end of the base plate 1 and is used to cut aluminum foil. The cutting assembly 23 includes a limiting rod 231 fixedly installed on both sides of the base plate 1. A support roller 232 and a cutting rod 233 are movably installed at the top of the limiting rod 231. A synchronous gear 234 is fixedly installed at one end of the support roller 232 and the cutting rod 233. A drive motor 235 is fixedly installed on one side of the limiting rod 231.

[0031] Specifically, the drive motor 235 is fixedly connected to the limit rod 231, and the rotating shaft of the drive motor 235 is fixedly connected to the support roller 232. The support roller 232 has a groove structure at its center, and the cutting roller 233 has an annular cutter at its center that fits into the groove structure of the support roller 232. The drive motor 235 drives the support roller 232 to rotate, and the cutting roller 233 rotates synchronously in the opposite direction through the synchronous gear 234, cutting the aluminum foil at the center while conveying the aluminum foil.

[0032] Specifically, the stepper motor 217 is model 57SHD, the reducer 218 is model AB142-50-S2-P2, the electric actuator 223 is model FSKSD-50, the fine-tuning motor 229 is model PB306, and the drive motor 235 is model EY410. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] During operation, the aluminum foil passes sequentially through the tension adjustment components 22, which are mirror images of the correction component 21 on both sides, and first contacts the limiting roller 222 at the top of the limiting frame 221. The electric actuator 223 drives the connecting frame 224 to move the pressure roller 225 up and down. The pressure roller 225, together with the limiting roller 222 and the adjusting roller 216, applies pressure to the aluminum foil. The fine-tuning motor 229 drives the bidirectional lead screw 228 to rotate, and the synchronous frame 2210 slides along the guide column 227 to adjust the position of the laser module 2211 so that it accurately illuminates the edge of the aluminum foil. After the laser module 2211 detects the aluminum foil deviation, the stepper motor 217 starts and drives the drive gear 219 to rotate through the reducer 218. The drive gear 219 meshes with the rack 215 in the center of the movable frame 214, causing the movable frame 214 to rotate under the limit of the limiting wheel 212. The adjusting roller 216 at the top of the movable frame 214 adjusts the tilt angle as the movable frame 214 rotates. After being corrected by the adjusting roller 216, the aluminum foil is conveyed to the cutting assembly 23. The drive motor 235 drives the support roller 232 to rotate. The support roller 232 drives the cutting roller 233 to rotate synchronously in the opposite direction through the synchronous gear 234. The support roller 232 and the cutting roller 233 cooperate to complete the aluminum foil cutting.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil, characterized in that: Includes a base plate (1), and a cutting mechanism (2) is provided above the base plate (1) for cutting materials and correcting the material deviation during cutting. The cutting mechanism (2) includes: The correction assembly (21) includes a support frame (211) fixedly installed above the base plate (1), a limit wheel (212) movably installed at the top of the support frame (211), a support seat (213) fixedly installed above the support frame (211), a movable frame (214) fitted inside the limit wheel (212), a rack (215) fixedly installed at the center of the movable frame (214), an adjusting roller (216) movably installed at the top of the movable frame (214), a stepper motor (217) fixedly installed above the base plate (1), a reducer (218) connected to the front end of the stepper motor (217), a drive gear (219) fixedly installed on the outer side of the output shaft of the reducer (218), and a protective shell (2110) provided above the support frame (211). The tension adjustment component (22) is mirrored on both sides of the correction component (21) to adjust the aluminum foil tension; A cutting assembly (23) is located at the rear end of the base plate (1) and is used to cut aluminum foil.

2. The laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil according to claim 1, characterized in that: The tension adjustment assembly (22) includes a limiting frame (221) fixedly installed on the left and right sides of the base plate (1). A limiting roller (222) is movably installed at the top of the limiting frame (221). An electric push rod (223) is fixedly installed at the top of the limiting frame (221). A connecting frame (224) is fixedly installed above the electric push rod (223). A pressure roller (225) is movably installed between the connecting frames (224).

3. The laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil according to claim 2, characterized in that: The tension adjustment assembly (22) also includes a limiting block (226) fixedly installed above the connecting frame (224). A guide post (227) is fixedly installed on one side of the limiting block (226). A bidirectional lead screw (228) is inserted through the center of the limiting block (226). A fine-tuning motor (229) is connected to one end of the bidirectional lead screw (228). A synchronization frame (2210) is movably installed on the outside of the bidirectional lead screw (228). A laser module (2211) is fixedly installed below the synchronization frame (2210).

4. The laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil according to claim 1, characterized in that: The cutting assembly (23) includes a limiting rod (231) fixedly installed on both sides of the base plate (1). A support roller (232) and a cutting rod (233) are movably installed at the top of the limiting rod (231). A synchronous gear (234) is fixedly installed at one end of the support roller (232) and the cutting rod (233). A drive motor (235) is fixedly installed on one side of the limiting rod (231).

5. The laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil according to claim 1, characterized in that: The movable frame (214) has arc-shaped grooves on both sides with a width greater than the diameter of the central shaft of the support wheel. The movable frame (214) is a semi-circular ring structure. The center of the movable frame (214) coincides with the center of the adjusting roller (216). The adjusting roller (216) and the movable frame (214) are rotatably connected. The drive gear (219) and the rack (215) mesh with each other. The protective shell (2110) covers the drive gear (219) and the rack (215).

6. The laser-guided adaptive correction and slitting mechanism for lithium battery aluminum foil according to claim 3, characterized in that: The limiting roller (222) and the limiting frame (221) are rotatably connected. The connecting frame (224) is movably connected to the limiting frame (221) via the electric push rod (223). The pressure roller (225) and the connecting frame (224) are rotatably connected. The synchronizing frame (2210) and the guide column (227) are slidably connected. The synchronizing frame (2210) and the bidirectional lead screw (228) are connected by threads.

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