Anti-folding flattening device for pole piece and pole lug of battery

Abstract

The utility model discloses a battery pole piece tab anti-folding smoothing device which comprises a smoothing roller which is arranged right above a passing roller and is driven by a rotating motor, the smoothing roller is a semi-cylinder which is arranged in parallel with the passing roller, and blowing holes are uniformly formed in the arc surface of the smoothing roller close to the tab end on a pole piece material belt. The blowing holes are communicated with an air blower through a pressure regulating valve. When no pole lug is detected, the plane side of the smoothing roller is opposite to the first passing roller, so that a pole piece material belt can conveniently pass through the space between the smoothing roller and the first passing roller, and equipment maintenance is facilitated; when the tabs are detected, the air blowing holes in the flattening roller blow air outwards to flatten the tabs, and it is ensured that the tilted tabs are not turned over; the optical fiber sensor detects the position of the tab and then uploads the position to the central controller, and the central controller controls the rotation rate of the smoothing roller to ensure that when the tab moves to the surface of the first passing roller, the arc surface of the smoothing roller also moves to the surface of the first passing roller.

Description

Technical Field

[0001] The utility model relates to the field of lithium ion battery production, in particular to a battery pole piece and ear anti-folding and smoothing device. Background Art

[0002] At present, in the production of power lithium batteries, the incoming pole pieces are all cut and formed by the pole ears. Before the unwinding movement to cutting into individual pole pieces, the pole ears on the pole pieces are thin and slender, and the smoothing device is a smoothing plate with a relatively fast unwinding transmission speed. When the pole piece passes through the cylindrical roller, it is easy to cause the pole ear to fold or the pole ear to slightly warp and collide with the smoothing plate, thereby causing the pole ear to fold or the root to tear, resulting in material waste.

[0003] The prior art generally adopts a static smoothing method in which the smoothing plate is stationary. However, when the gap between the smoothing plate and the roller is too large, effective smoothing cannot be achieved. When the gap is too small, the raised tabs will directly interfere with the smoothing plate and cause the tabs to tear. Utility Model Content

[0004] In order to solve the existing problems, the utility model provides a battery pole piece and ear anti-folding and smoothing device, and the specific scheme is as follows:

[0005] A battery pole piece and tab anti-folding and smoothing device comprises a smoothing roller installed just above a passing roller and driven by a rotating motor, the smoothing roller is a semi-cylinder arranged parallel to the passing roller, and the smoothing roller is evenly provided with blowing holes on the arc surface close to the tab end on the pole piece material strip, and the blowing holes are connected to a blower through a pressure regulating valve.

[0006] Preferably, the rollers include a plurality of first rollers and a plurality of second rollers, the first rollers and the second rollers are arranged crosswise and parallel, the pole piece strip passes through the bottom of the second roller and the top of the first roller in sequence, the smoothing roller is located directly above the first roller, and the distance between the arc surface of the smoothing roller and the first roller is equal to the thickness of the pole piece strip.

[0007] Preferably, it also includes a central controller and a fiber optic sensor; the fiber optic sensor is arranged between the second passing roller and the smoothing roller, and the fiber optic sensor is placed directly above the route passed by the pole ear during the movement of the pole piece material strip; the fiber optic sensor and the rotating motor are electrically connected to the central controller; when the fiber optic sensor detects that the pole ear has passed, the signal is uploaded to the central controller, and the central controller starts the blower and the pressure regulating valve to make the blowing hole blow air outward. At the same time, the central controller starts the rotation of the smoothing roller and controls the rotation speed of the smoothing roller according to the distance between the fiber optic sensor and the smoothing roller, to ensure that when the pole ear contacts the first passing roller, the arc surface of the smoothing roller moves to the top of the first passing roller and contacts the pole piece material strip.

[0008] Preferably, it also includes a mounting plate, and the passing roller and the smoothing roller are both vertically rotatably mounted on the mounting plate.

[0009] Preferably, the rotating shaft of the smoothing roller passes through the mounting plate and is fixed on the motor mounting block, and the motor mounting block is mounted on the rotating motor through a coupling.

[0010] Preferably, the optical fiber sensor is fixed on a sensor bracket, the sensor bracket is mounted on the end of a sensor bracket mounting frame, and the sensor bracket mounting frame is fixed on the mounting large plate.

[0011] The beneficial effects of the utility model are:

[0012] When the pole ear is not detected, the flat side of the smoothing roller is opposite to the first roller, which is convenient for the pole sheet material to pass between the smoothing roller and the first roller and convenient for equipment maintenance; when the pole ear is detected, the blowing hole on the smoothing roller blows air outward to smooth the pole ear to ensure that the raised pole ear is not folded; the optical fiber sensor detects the position of the pole ear and uploads it to the central controller, which controls the rotation rate of the smoothing roller to ensure that when the pole ear moves to the surface of the first roller, the arc surface of the smoothing roller also moves to the surface of the first roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a front view of the tab anti-folding and smoothing device;

[0015] Figure 2 It is a side view of the tab anti-folding and smoothing device;

[0016] Figure 3 This is a schematic diagram of the smoothing roller structure.

[0017] The accompanying drawings are as follows:

[0018] 1. Install the large plate, 2. Roller, 201, first roller, 202, second roller, 3. Smoothing roller, 301, blowing hole, 4. Fiber optic sensor, 5. Sensor bracket, 6. Sensor bracket mounting frame, 11. Pole piece strip, 12. Pole ear, 21. Rotating motor, 22. Coupling, 23. Motor mounting block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 , Figure 2 and Figure 3 A battery pole piece and ear anti-folding and smoothing device includes a roller 2, the roller 2 includes a plurality of first rollers 201 and a second roller 202, the first rollers 201 and the second rollers 202 are arranged crosswise and parallel, the pole piece strip 11 passes through the bottom of the second roller 202 and the top of the first roller 201 in sequence, the smoothing roller 3 is located directly above the first roller 201, and the distance between the arc surface of the smoothing roller 3 and the first roller 201 is equal to the thickness of the pole piece strip 11.

[0021] A smoothing roller 3 driven by a rotating motor 21 is installed directly above the passing roller 2. The smoothing roller 3 is a semi-cylinder arranged parallel to the passing roller 2, and the smoothing roller 3 is evenly provided with blowing holes 301 on the arc surface close to the end of the pole ear 12 on the pole sheet strip 11, and the blowing holes 301 are connected to the blower through a pressure regulating valve.

[0022] The utility model further includes a central controller and an optical fiber sensor 4. The optical fiber sensor 4 is arranged between the second roller 202 and the smoothing roller 3, and the optical fiber sensor 4 is placed directly above the route passed by the pole ear 12 during the travel of the pole sheet material strip 11. The optical fiber sensor 4, the rotating motor 21, the blower and the pressure regulating valve are all electrically connected to the central controller.

[0023] Working process: The pole tab 12 moves through the second roller 202 and the first roller 201 in sequence with the pole piece strip 11. When the pole tab 12 is not detected, the flat side of the smoothing roller 3 faces the top surface of the first roller 201, so that the distance between the smoothing roller 3 and the first roller 201 is large enough to facilitate the passage of the pole piece strip 11. When the optical fiber sensor 4 detects that the pole tab 12 passes, the optical fiber sensor 4 uploads the signal to the central controller. After receiving the signal, the central controller starts the blower and the pressure regulating valve to blow air out of the blowing hole 301. Before the pole tab 12 reaches between the smoothing roller 3 and the first roller 201, the gas blown out of the blowing hole 301 will flatten the pole tab 12. At the same time, the central controller starts the rotating motor to drive the smoothing roller 3 to rotate, and controls the rotation speed of the smoothing roller 3 according to the distance between the optical fiber sensor 4 and the smoothing roller 3, to ensure that when the pole ear 12 contacts the first passing roller 201, the arc surface of the smoothing roller 3 moves to the top of the first passing roller 201 and contacts the pole piece strip 11.

[0024] The utility model also includes a mounting plate 1, and the roller 2 and the smoothing roller 3 are both vertically rotatably mounted on the mounting plate 1. The rotating shaft of the smoothing roller 3 passes through the mounting plate 1 and is fixed on the motor mounting block 23, and the motor mounting block 23 is mounted on the rotating motor 21 through the coupling 22. The optical fiber sensor 4 is fixed on the sensor bracket 5, and the sensor bracket 5 is mounted on the end of the sensor bracket mounting frame 6, and the sensor bracket mounting frame 6 is fixed on the mounting plate 1.

[0025] When the pole ear is not detected, the flat side of the smoothing roller is opposite to the first roller, which is convenient for the pole sheet material to pass between the smoothing roller and the first roller and convenient for equipment maintenance; when the pole ear is detected, the blowing hole on the smoothing roller blows air outward to smooth the pole ear to ensure that the raised pole ear is not folded; the optical fiber sensor detects the position of the pole ear and uploads it to the central controller, which controls the rotation rate of the smoothing roller to ensure that when the pole ear moves to the surface of the first roller, the arc surface of the smoothing roller also moves to the surface of the first roller.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery pole piece and ear anti-folding and smoothing device, characterized in that: The invention comprises a smoothing roller (3) installed just above the passing roller (2) and driven by a rotating motor (21), wherein the smoothing roller (3) is a semi-cylinder arranged parallel to the passing roller (2), and the smoothing roller (3) is evenly provided with blowing holes (301) on the arc surface close to the end of the pole ear (12) on the pole sheet strip (11), and the blowing holes (301) are connected to the blower through a pressure regulating valve.

2. The battery pole piece and ear anti-folding and smoothing device according to claim 1, characterized in that: The rollers (2) include a plurality of first rollers (201) and a plurality of second rollers (202), wherein the first rollers (201) and the second rollers (202) are arranged crosswise and in parallel, and the pole piece strip (11) passes through the bottom of the second rollers (202) and the top of the first rollers (201) in sequence, and the smoothing roller (3) is located directly above the first roller (201), and the distance between the arc surface of the smoothing roller (3) and the first roller (201) is equal to the thickness of the pole piece strip (11).

3. The battery pole piece and ear anti-folding and smoothing device according to claim 2, characterized in that: The apparatus also includes a central controller and an optical fiber sensor (4); the optical fiber sensor (4) is arranged between the second roller (202) and the smoothing roller (3); the optical fiber sensor (4) is placed directly above the route passed by the pole ear (12) during the movement of the pole sheet material strip (11); the optical fiber sensor (4), the rotating motor (21), the blower and the pressure regulating valve are all electrically connected to the central controller; when the optical fiber sensor (4) detects that the pole ear (12) passes by, the signal is uploaded to the central controller. Go to the central controller, the central controller starts the blower and the pressure regulating valve to make the blowing hole (301) blow air outward. At the same time, the central controller starts the rotating motor to drive the smoothing roller (3) to rotate, and controls the rotation speed of the smoothing roller (3) according to the distance between the optical fiber sensor (4) and the smoothing roller (3), to ensure that when the pole ear (12) contacts the first passing roller (201), the arc surface of the smoothing roller (3) moves to the top of the first passing roller (201) and contacts the pole piece strip (11).

4. The battery pole piece and ear anti-folding and smoothing device according to claim 3, characterized in that: It also comprises a mounting plate (1), on which the passing roller (2) and the smoothing roller (3) are both mounted in a vertically rotatable manner.

5. The battery pole piece and ear anti-folding and smoothing device according to claim 4, characterized in that: The rotating shaft of the smoothing roller (3) passes through the mounting plate (1) and is fixed on the motor mounting block (23). The motor mounting block (23) is mounted on the rotating motor (21) through a coupling (22).

6. The battery pole piece and ear anti-folding and smoothing device according to claim 4, characterized in that: The optical fiber sensor (4) is fixed on a sensor bracket (5), the sensor bracket (5) is mounted on the end of a sensor bracket mounting frame (6), and the sensor bracket mounting frame (6) is fixed on the mounting plate (1).

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