Batch leveling device for lithium batteries

Abstract

The utility model relates to the technical field of lithium battery leveling, and discloses a lithium battery batch leveling device which comprises a base, an upper plate and a supporting plate, an upper groove is formed in the surface of the base, screw rods are longitudinally and rotatably installed at the lower positions of the two sides in the upper groove, and the supporting plate is arranged at the front end in the upper groove. The lead screw slidably penetrates through the two sides of the lower portion of the supporting plate in a screwed mode, the upper plate is supported above the base through supporting rods at the four corners of the upper plate, and electric push rods are vertically installed at the four corners of the surface of the upper plate. According to the technical scheme of the utility model, the plurality of compression rollers are rotatably arranged at the bottom of the front end of the lifting plate, and the support plate for supporting and placing the electrode can be arranged below the lifting plate to move back and forth, so that the electrode can be driven to be arranged below the compression rollers and is rolled back and forth for multiple times to be ground and flattened firstly; and the electrode is moved to the position below the pressing plate and is pressed by the pressing plate to keep acting force, and the purpose of compacting the electrode to be in the flat state is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery leveling technical field, concretely is a kind of lithium battery batch leveling device. BACKGROUND

[0002] Lithium battery, with lithium metal or lithium alloy as material, has high energy density, long cycle life and environmental protection characteristics, is indispensable energy source of modern electronic equipment, it is mainly divided into lithium metal battery and lithium ion battery two categories, the latter is more popular due to rechargeable, widely used in mobile phone, notebook computer, electric vehicle and multiple fields, lithium battery production process needs to be leveled to lithium battery, through leveling compaction can significantly improve the flatness and density of electrode sheet, to improve the performance of battery.

[0003] Prior art directly through the flat plate electrode sheet flat compaction operation, when batch processing, due to the existence of more uneven even wrinkle on the surface of electrode sheet, directly with the flat plate down, it can make wrinkle position be directly pressed and form fold or bend, cannot guarantee the flat state of electrode sheet surface.Therefore, we propose a kind of lithium battery batch leveling device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of lithium battery batch leveling device, by setting multiple pressure roller rotatable installation in the front end bottom of lifting plate, and the support plate that support electrode is placed can be placed in the front and rear movement of lifting plate below, can first drive electrode to be placed below pressure roller, be rolled back and forth multiple times and first flatten electrode, guarantee its flat or micro-arc state and then move to the flat plate below, be pressed by flat plate and keep effort, realize the purpose of electrode compaction to flat state, solve the problem proposed in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of lithium battery batch leveling device, including base, upper plate and support plate, the surface of the base is equipped with upper groove, the both sides of the inside of upper groove are vertically rotatable and are installed with screw rod in position slightly below, support plate is placed in the front end of the inside of upper groove, screw rod is slidably penetrated through the both sides below support plate by swivel joint mode;The upper plate is supported and placed in the above of base by the support rod of its four corners, the surface of the upper plate is vertically installed with electric push rod in the four corners, the lifting plate below the upper plate is fixed with the electric push rod and is laterally fixed with the lifting plate, the front end of the lifting plate is rotatably installed with pressure roller by the lateral plate of both sides, the bottom of the lifting plate of the rear end of pressure roller is equipped with flat plate.

[0006] By adopting the above technical scheme, first make multiple electrodes lay in the support groove of support plate, support plate is driven and is placed below pressure roller, first make pressure roller drop height, then reciprocating front and back multiple times support plate, make electrode first be pressed and flatten to flat or micro-arc state by pressure roller, then move to the directly below of flat plate, be pressed and keep by flat plate, make electrode be compacted to flat state.

[0007] Optionally, the upper groove bottom surface is uniformly provided with a groove body and is provided with a rotatable supporting roller, and the supporting roller located below the supporting plate is supported on the bottom surface of the supporting plate.

[0008] By adopting the above technical scheme, when the pressure roller or the pressure plate is pressed on the electrode surface above the supporting plate, the supporting roller can provide better supporting and stabilizing effect.

[0009] Optionally, the surface of the supporting plate is provided with a supporting groove for positioning and placing the lithium battery electrode.

[0010] Optionally, the bottom of the base is vertically supported by supporting legs at four corners, and the supporting legs are provided in plurality.

[0011] By adopting the above technical scheme, the base is stably supported by the supporting legs at four corners of the bottom.

[0012] Optionally, a stepping motor is mounted on the side surface of the base at the front end of the lead screw, and the stepping motor is in transmission connection with the lead screw.

[0013] By adopting the above technical scheme, the lead screw is driven to rotate by the stepping motor, so as to achieve the purpose of driving the supporting plate to move forward or backward.

[0014] Optionally, the pressure roller is provided in plurality, and the pressure rollers adjacent to each other have the same spacing.

[0015] By adopting the above technical scheme, the plurality of pressure rollers simultaneously act on the electrode surface above the supporting plate, so as to achieve the uniform rolling effect.

[0016] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows:

[0017] 1. The technical scheme of the present application is provided with a plurality of rotatable pressure rollers mounted at the front end bottom of the lifting plate, and the supporting plate supporting and placing the electrode can be moved forward and backward below the lifting plate, so as to first drive the electrode to be placed below the pressure roller, and then be rolled back and forth for multiple times to flatten the electrode, so as to ensure the flatness or micro-arc state of the electrode, and then move the electrode to below the pressure plate, and then be pressed by the pressure plate to maintain the acting force, so as to achieve the purpose of compacting the electrode to the flat state.

[0018] 2. The technical scheme of the present application is provided with a plurality of supporting rollers uniformly mounted at the bottom of the upper groove, and the supporting rollers are supported and abutted at the bottom of the supporting plate, so as to maintain sufficient supporting force on the supporting plate when the supporting plate is subjected to the pressing force of the pressure roller or the pressure plate, and avoid that the large acting force is transmitted to the lead screw to cause large wear. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Fig. 1 It is the whole structure schematic view of the lithium battery batch leveling device of the utility model;

[0021] Fig. 2 It is the base surface structure schematic view of the lithium battery batch leveling device of the utility model;

[0022] Fig. 3 It is the lifting plate front end bottom structure schematic view of the lithium battery batch leveling device of the utility model.

[0023] In the figure: 1, base; 11, upper groove; 111, supporting roller; 12, supporting leg; 13, supporting rod; 2, upper plate; 3, supporting plate; 31, supporting groove; 4, lead screw; 41, stepping motor; 5, electric push rod; 6, lifting plate; 61, side plate; 611, compression roller; 62, compression plate. DETAILED DESCRIPTION

[0024] Please refer to Figs. 1-3 The utility model provides a technical scheme: a lithium battery batch leveling device, including base 1, upper plate 2 and supporting plate 3, the bottom four corners of base 1 are vertically supported with supporting leg 12, supporting leg 12 is provided with multiple, realize the horizontal support of base 1.

[0025] The upper groove 11 is set up on the surface of base 1, the inside both sides of upper groove 11 are vertically rotatable installation with lead screw 4 in the position of lower position, make supporting plate 3 movable place in the inside front end of upper groove 11, and lead screw 4 is slidably penetrated through the lower side of supporting plate 3 by the way of screwing, the side surface of base 1 of the front end of lead screw 4 is installed with stepping motor 41, and stepping motor 41 is driving connection with lead screw 4, and stepping motor 41 can drive lead screw 4 forward rotation or reverse rotation, further drive supporting plate 3 to move forward or backward, and the surface of supporting plate 3 is set up with supporting groove 31, for positioning placing lithium battery electrode.

[0026] The upper plate 2 is supported on the top of base 1 through the supporting rod 13 of its four corners, the height of supporting rod 13 is same so that the surface of upper plate 2 is parallel to the surface of base 1, the surface of upper plate 2 is vertically installed with electric push rod 5 in four corners, the extending end of electric push rod 5 is penetrated to the lower of upper plate 2 downward, and the extending end of electric push rod 5 is fixed with lifting plate 6 placed under the upper plate 2 laterally, the front end of lifting plate 6 is rotatable installed with compression roller 611 laterally through the side plate 61 of both sides, the compression roller 611 is provided with multiple, the interval of adjacent compression roller 611 is same, and the bottom of lifting plate 6 of the rear end of compression roller 611 is provided with compression plate 62.

[0027] In use, the support plate 3 is placed at the front end, the motor is positioned and placed in the support groove 31 of the support plate 3, the lifting plate 6 is first driven to lower in height, the pressure roller 611 below the front end thereof is pressed against the surface of the electrode in the support groove 31, the lead screw 4 is driven to reciprocating rotate by the control of the stepper motor 41, the electrode sheet in the support groove 31 is driven to reciprocating move forward and backward at the front end by the support plate 3, the pressure roller 611 is pressed against the surface of the electrode and rolls back and forth on the surface of the electrode for multiple times, the electrode is flattened or pressed to a state with a small amount of curvature, then the electrode is moved to the rear end by the control of the stepper motor 41 and placed directly below the pressing plate 62, the lifting plate 6 and the pressing plate 62 at the rear end thereof are then driven to lower in height by the electric push rod 5, the pressing plate 62 is pressed against the surface of the electrode, and the electrode is pressed to be flat after a sufficient time.

[0028] By the above scheme, when the pressure roller 611 or the pressing plate 62 is pressed, a large force is transmitted to the position where the lead screw 4 and the support rod 13 are rotatably penetrated, in order to reduce the stress at this position and protect the transmission structure, the bottom surface of the upper groove 11 is uniformly provided with a groove body and a rotatable support roller 111 is installed, the support roller 111 below the support plate 3 is supported on the bottom surface of the support plate 3 to provide sufficient support to the support plate 3.

[0029] In use, the stepper motor 41 and the electric push rod 5 are connected to the control device and powered on, the lithium battery electrodes to be flattened are placed in the support groove 31 on the surface of the support plate 3, the support plate 3 at the initial position is located at the front end position in the upper groove 11, the lifting plate 6 is first driven to lower in height by the control of the electric push rod 5, the pressure roller 611 below the front end thereof is pressed against the surface of the electrode in the support groove 31, then the lead screw 4 is driven to reciprocating rotate by the control of the stepper motor 41, the electrode sheet in the support groove 31 is driven to reciprocating move forward and backward at the front end by the support plate 3, the pressure roller 611 is pressed against the surface of the electrode and rolls back and forth on the surface of the electrode for multiple times, the electrode is flattened or pressed to a state with a small amount of curvature, then the lifting plate 6 and the pressure roller 611 are raised in height by the control of the electric push rod 5, the electrode is moved to the rear end by the control of the stepper motor 41 and placed directly below the pressing plate 62, the lifting plate 6 and the pressing plate 62 at the rear end thereof are then driven to lower in height by the electric push rod 5, the pressing plate 62 is pressed against the surface of the electrode, and the electrode is pressed to be flat after a sufficient time.

Claims

1. A lithium battery batch flattening device, comprising a base (1), an upper plate (2) and a support plate (3), characterized in that: The surface of the base (1) is provided with an upper groove (11), and the inner sides of the upper groove (11) are longitudinally rotatably provided with lead screws (4) at lower positions; the support plate (3) is arranged at the front end of the upper groove (11), and the lead screws (4) are slidably penetrated through the lower sides of the support plate (3) by screwing. The upper plate (2) is supported by the support rods (13) at the four corners and arranged above the base (1); the surface of the upper plate (2) is vertically provided with electric push rods (5) at the four corners; the extending ends of the electric push rods (5) are transversely fixed with lifting plates (6) arranged below the upper plate (2); the front end of the lifting plate (6) is transversely rotatably provided with pressure rollers (611) through the side plates (61) at the two sides; the bottom of the lifting plate (6) at the rear end of the pressure roller (611) is provided with a pressing plate (62).

2. The lithium battery batch flattening device of claim 1, wherein: The bottom surface of the upper groove (11) is uniformly provided with groove bodies and rotatable support rollers (111); the support rollers (111) below the support plate (3) are supported on the bottom surface of the support plate (3).

3. The lithium battery batch leveling device of claim 1, wherein: The surface of the support plate (3) is provided with a support groove (31) for positioning and placing the lithium battery electrode.

4. The lithium battery batch leveling device of claim 1, wherein: The bottom of the base (1) is vertically supported by support legs (12) at the four corners; the support legs (12) are provided with a plurality of support legs.

5. The lithium battery batch leveling device of claim 1, wherein: The side surface of the base (1) at the front end of the lead screw (4) is provided with a stepping motor (41); the stepping motor (41) is drivingly connected with the lead screw (4).

6. The lithium battery batch leveling device of claim 1, wherein: The pressure rollers (611) are provided with a plurality of pressure rollers (611) with the same spacing between adjacent pressure rollers (611).

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