Battery cell pole piece burr removing device

Abstract

The utility model discloses a battery cell pole piece burr removing device which comprises a sliding rail, a sliding frame I and a sliding frame II are arranged on the sliding rail in a sliding mode, the sliding frame I is connected with a sweeping mechanism through a lifting mechanism I, the sliding frame II is connected with a positioning mechanism through a lifting mechanism II, and a battery cell pole piece is located between the sweeping mechanism and the positioning mechanism. And the cleaning mechanism can clean burrs on the edge of the battery cell pole piece. In this way, firstly, the cut battery cell pole piece is positioned through the cleaning mechanism and the positioning mechanism, and then the cleaning mechanism is started to clean burrs on the edge of the battery cell pole piece. The problems that burrs left after an existing battery cell pole piece is cut can pierce a diaphragm, so that short circuit and non-uniform pressure difference are caused in a battery cell, the charging and discharging performance of the battery is influenced, and potential safety hazards such as fire can be possibly generated in serious cases are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell manufacturing, especially relates to a battery cell pole piece burr removing device. BACKGROUND

[0002] New energy battery manufacturing involves multiple process links, wherein the slitting process after the battery cell material is mixed and rolled in the previous section is very important, and is the basis of battery cell manufacturing; and moisture, burrs and dust are also the three major problems of battery cell manufacturing.

[0003] At present, after the battery cell pole piece is rolled and cut, the cutting knife will cause the unevenness of the pole piece cutout, leaving 1 to 2 mm small burrs, and when the pole piece is made into a battery cell roll core and is wound, the diaphragm may be pierced, resulting in internal short circuit of the battery cell, non-uniform pressure difference, affecting the charge and discharge performance of the battery, and in severe cases, fire and other safety hazard problems may also occur. UTILITY MODEL CONTENTS

[0004] To solve the technical problems in the background art, the utility model provides a battery cell pole piece burr removing device.

[0005] The utility model provides a battery cell pole piece burr removing device, including slide rail, the slide rail slides and has slide frame I and slide frame II, the slide frame I is connected with the cleaning mechanism through the elevating system I, the slide frame II is connected with the positioning mechanism through the elevating system II, and the battery cell pole piece is located between the cleaning mechanism and the positioning mechanism, and the cleaning mechanism can clean the edge burr of the battery cell pole piece.

[0006] First, the cut battery cell pole piece 23 is positioned through the cleaning mechanism and the positioning mechanism, and then the burr on the edge of the battery cell pole piece 23 is cleaned by starting the cleaning mechanism. The burr left after the existing battery cell pole piece is cut can pierce the diaphragm, cause internal short circuit of the battery cell, non-uniform pressure difference, affect the charge and discharge performance of the battery, and in severe cases, fire and other safety hazard problems may also occur.

[0007] Preferably, the slide rail is provided as two cylindrical beams, the two ends of the cylindrical beams are respectively connected with fixed plates, and the slide frame I and the slide frame II are provided with circular through holes matched with the cylindrical beams.

[0008] The stability of the sliding connection is ensured.

[0009] Preferably, the elevating system I comprises:

[0010] A vertical elevating column I is connected with the slide frame I in an up-down sliding manner.

[0011] A rotating screw I is provided with external threads.

[0012] Connecting plate I, lower end fixed with upper end of vertical lifting column I, middle part provided with threaded hole matched with rotating screw I, rotating rotating screw I, rotating motion converted into linear motion, driving connecting plate I up and down movement, in turn driving vertical lifting column I up and down movement.

[0013] Preferably, the cleaning mechanism comprises:

[0014] U-shaped cleaning frame, upper end fixed with lower end of vertical lifting column I, opening side of U-shaped cleaning frame faces positioning mechanism, vertical installation of brush for cleaning edge burr of electrode sheet in middle part of inside of U-shaped cleaning frame, limiting roller for limiting side part of electrode sheet is installed in edge part of inside of U-shaped cleaning frame;

[0015] Dust suction pipe, provided at opening back side of U-shaped cleaning frame;

[0016] Driving motor, motor bracket is installed below U-shaped cleaning frame, output shaft of driving motor is connected with rotating shaft of brush through motor bracket.

[0017] Preferably, the lifting mechanism II comprises:

[0018] Vertical lifting column II, up and down sliding connection with sliding frame II;

[0019] Rotating screw II, provided with external thread;

[0020] Connecting plate II, lower end fixed with upper end of vertical lifting column II, middle part provided with threaded hole matched with rotating screw II, rotating rotating screw II, rotating motion converted into linear motion, driving connecting plate II up and down movement, in turn driving vertical lifting column II up and down movement.

[0021] The height position of the cleaning mechanism can be adjusted.

[0022] Preferably, the positioning mechanism comprises:

[0023] Lifting frame, upper end fixed with lower end of vertical lifting column II;

[0024] L-shaped positioning frame, comprising top frame and side frame, top frame fixed at lower end of lifting frame, slide bar fixed at lower end of top frame, slide groove provided at both sides of lower part of slide bar, and micrometer provided on slide bar;

[0025] Horizontal slide block, sliding connection with slide groove, screw rod fixed at outer side part of horizontal slide block, handle installed on screw rod through side frame, rotating handle, driving screw rod to rotate, in turn driving horizontal slide block to slide horizontally along slide groove;

[0026] A pressing roller positioning frame is fixed to the lower end of the horizontal sliding block, and a positioning pressing roller for positioning the side of the electrode sheet of the battery cell is vertically installed on the pressing roller positioning frame.

[0027] Preferably, a bearing is installed between the upper end of the rotating shaft of the brush and the U-shaped cleaning frame.

[0028] Preferably, an air pipe frame is installed on the upper part of the opening side of the U-shaped cleaning frame, a blowing pipe is installed on the air pipe frame, the blowing port end of the blowing pipe is located obliquely above the edge of the electrode sheet of the battery cell, and a filter is connected to the other end of the blowing pipe.

[0029] The brush cleaning burrs enter the dust suction pipe to play a role of pushing and cleaning into the dust suction pipe.

[0030] Preferably, the side of the sliding frame I and the side of the sliding frame II are provided with a locking structure for locking the position of the sliding frame I and the sliding frame II on the sliding rail.

[0031] In summary, the utility model has the following beneficial effects: firstly, the electrode sheet after slitting is positioned by the cleaning mechanism and the positioning mechanism, and then the burrs on the edge of the electrode sheet are cleaned by starting the cleaning mechanism. The burrs left after the existing electrode sheet is slitted can pierce the diaphragm, causing internal short circuit of the battery cell, uneven pressure difference, affecting the charge and discharge performance of the battery, and even causing fire and other safety hazards.

[0032] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a perspective view of the electrode sheet burr cleaning device of the utility model embodiment;

[0034] Figure 2 It is a side view of the electrode sheet burr cleaning device of the utility model embodiment;

[0035] Figure 3 It is a structural schematic view of the sliding frame I, the sliding frame II and the sliding rail of the utility model embodiment;

[0036] Figure 4 It is a structural schematic view of the lifting mechanism I of the utility model embodiment;

[0037] Figure 5 It is a structural schematic view of the cleaning mechanism of the utility model embodiment;

[0038] Figure 6 It is a partial exploded view of the cleaning mechanism of the utility model embodiment;

[0039] Figure 7 It is the blowing and dust collecting structure schematic view of the utility model embodiment;

[0040] Figure 8 It is the structure schematic view of the positioning mechanism of the utility model embodiment;

[0041] Figure 9 It is Figure 1 The enlarged view of A in the middle;

[0042] Figure 10 It is Figure 1 The perspective view of A in the middle.

[0043] In the figure:

[0044] 1, fixed plate;2, slide rail;3, sliding frame I;4, sliding frame II;5, fixed screw;6, screw cylinder;7, rotating handle;8, handle spring piece;9, lifting column I;10, connecting plate I;11, rotating screw I;12, U-shaped cleaning frame;13, dust collecting pipe;14, U-shaped cleaning frame side plate;15, limiting roller;16, bearing;17, rotating shaft;18, brush;19, dustproof piece;20, brush baffle;21, motor frame;22, driving motor;23, electric core tab;24, filter;25, power piece;26, blowing pipe;27, air pipe frame;28, lifting frame;29, L-shaped positioning frame;30, horizontal sliding block;31, pressure roller positioning frame;32, positioning pressure roller;33, micrometer;34, rotating handle;35, locking groove. DETAILED DESCRIPTION

[0045] The embodiments of the utility model are described in detail below, the examples of the embodiments are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0046] As Figures 1-10 Indicated, the electric core tab burr removing device proposed in this embodiment includes slide rail 2, slide rail 2 is slid with sliding frame I 3 and sliding frame II 4, sliding frame I 3 is connected with cleaning mechanism through lifting mechanism I, sliding frame II 4 is connected with positioning mechanism through lifting mechanism II, electric core tab 23 is located between cleaning mechanism and positioning mechanism, and cleaning mechanism can clean the edge burr of electric core tab 23.

[0047] Therefore, the cut battery cell pole piece 23 is first positioned by the cleaning mechanism and the positioning mechanism, and then the cleaning mechanism is started to clean the burrs on the edge of the battery cell pole piece 23. The burrs left after the existing battery cell pole piece cutting can pierce the diaphragm, causing internal short circuit of the battery cell, uneven pressure difference, affecting the charge and discharge performance of the battery, and even causing fire and other safety hazards.

[0048] Further, as shown in Figure 1 and Figure 3 , the slide rail 2 is provided as two parallel cylindrical beams, and the two ends of the cylindrical beams are respectively connected with the fixed plate 1. The slide frame I 3 and the slide frame II 4 are provided with circular through holes matched with the cylindrical beams, and the slide frame I 3 and the slide frame II 4 can slide along the length direction of the cylindrical beams to adjust the horizontal position of the cleaning mechanism and the positioning mechanism.

[0049] Further, the side of the slide frame I 3 and the slide frame II 4 is provided with a locking structure for locking the position of the slide frame I 3 and the slide frame II 4 on the slide rail 2. Specifically, as shown in Figure 9 and Figure 10 , the locking structure in one specific embodiment can include a fixed screw 5, a screw cylindrical column 6, a rotating handle 7, a handle spring piece 8, a strip-shaped hole is formed in the upper part of the rotating handle, a toothed handle spring piece 8 is arranged on one side of the strip-shaped hole, the screw cylindrical column 6 is clamped on the handle spring piece 8, and the fixed screw 5 is fixed on the rotating handle 7 through a U-shaped piece. The fixed screw 5 passes through the threaded hole in the side of the slide frame I 3 and can be tightly abutted with the cylindrical beam. By rotating the rotating handle 7, the fixed screw 5 is rotated, and then the rotational motion is converted into linear motion. The fixed screw 5 tightly abuts the cylindrical beam to lock the position of the slide frame I 3. When it is needed to release the locking, the rotating handle 7 is rotated in the opposite direction to drive the fixed screw 5 to move outward, thereby releasing the locking of the cylindrical beam by the fixed screw 5. At the same time, since the screw cylindrical column 6 and the U-shaped piece can rotate, in order to prevent the rotating handle 7 from rotating after locking, a locking groove 35 can be formed in the upper end of the slide frame I 3. When the position is locked, the upper part of the rotating handle 7 can be inserted into the locking groove 35 to lock, thereby preventing the rotating handle 7 from rotating.

[0050] It should be noted that the locking structure can also be other existing locking structures, which is determined according to the specific situation, and will not be repeated here.

[0051] As shown in Figure 1 and Figure 4 , the lifting mechanism I includes:

[0052] a vertical lifting column I 9, which is connected with the slide frame I 3 in a sliding manner up and down;

[0053] a rotating screw I 11, which is provided with an external thread;

[0054] Connecting plate Ⅰ10, the lower end is fixed with the upper end of vertical lifting column Ⅰ9, the middle part is provided with a threaded hole matched with rotating screw Ⅰ11, rotating screw Ⅰ11 is rotated, the rotary motion is converted into linear motion, connecting plate Ⅰ10 is driven to move up and down, and then vertical lifting column Ⅰ9 is driven to move up and down.

[0055] Further, as shown in Figure 5 and Figure 6 The cleaning mechanism comprises:

[0056] U-shaped cleaning frame 12, the upper end is fixed with the lower end of vertical lifting column Ⅰ9, the opening side of U-shaped cleaning frame 12 faces the positioning mechanism, a brush 18 for cleaning the burrs on the edge of the electrode plate 23 is vertically installed in the middle of the inside, and a limiting roller 15 for limiting the side of the electrode plate 23 is installed on the edge of the inside, the limiting roller 15 limits the electrode plate 23; wherein, the limiting roller 15 and the brush 18 are arranged in parallel.

[0057] Wherein, the upper end of the rotating shaft 17 of the brush 18 and the U-shaped cleaning frame 12 are provided with a bearing 16.

[0058] In order to avoid affecting the cleaning effect of the brush 18, the side of the brush 18 is also provided with a brush baffle 20 for blocking the burrs on the brush 18.

[0059] Suction pipe 13, provided on the back side of the opening of U-shaped cleaning frame 12;

[0060] Driving motor 22, motor bracket 21 is installed below U-shaped cleaning frame 12, the output shaft of driving motor 22 is connected with the rotating shaft 17 of brush 18 through motor bracket 21. Starting driving motor 22, driving brush 18 to rotate, cleaning the burrs on the edge of electrode plate 23.

[0061] In this way, rotating rotating screw Ⅰ11, the rotary motion is converted into linear motion, connecting plate Ⅰ10 is driven to move up and down, and then vertical lifting column Ⅰ9 is driven to move up and down, and then U-shaped cleaning frame 12 is driven to move up and down, adjusting the height position of the cleaning mechanism.

[0062] Further, as shown in Figure 7 The opening side of U-shaped cleaning frame 12 is provided with a wind pipe bracket 27, a blowing pipe 26 is installed on the wind pipe bracket 27, the blowing port end of blowing pipe 26 is located above the edge of electrode plate 23, and the other end is connected with a filter 24. Wherein, a power member can also be included, starting the power member, air enters blowing pipe 26 through filter 24, and then blows from the blowing port to the burrs on the edge of electrode plate 23, which can blow the spilled burrs to the brush, blow the burrs to the suction pipe 13, play a role of pushing and removing to the suction pipe, and the burrs cleaned by brush 18 enter the suction pipe 13.

[0063] AsFigure 1 and Figure 8 As shown in the figure, the lifting mechanism II includes:

[0064] The vertical lifting column II is connected with the sliding frame II in up and down sliding mode.

[0065] The rotating screw II is provided with external thread.

[0066] The connecting plate II is fixed at the upper end of the vertical lifting column II, and the middle part is provided with a threaded hole matched with the rotating screw II. When the rotating screw II is rotated, the rotary motion is converted into linear motion, which drives the connecting plate II to move up and down, and further drives the vertical lifting column II to move up and down.

[0067] Further, the positioning mechanism includes:

[0068] The lifting frame 28 is fixed at the lower end of the vertical lifting column II.

[0069] The L-shaped positioning frame 29 includes a top frame and a side frame. The top frame is fixed at the lower end of the lifting frame 28, and the lower end is fixed with a sliding rod. The lower part of the sliding rod is provided with a sliding groove on both sides, and the sliding rod is provided with a micrometer 33, which is convenient for recording the horizontal distance of movement.

[0070] The horizontal sliding block 30 is connected with the sliding groove in sliding mode, and the outer side is fixed with a screw rod. The screw rod is installed with a handle 34, which is rotated to drive the screw rod to rotate, and further drive the horizontal sliding block 30 to slide horizontally along the sliding groove.

[0071] The compression roller positioning frame 31 is fixed at the lower end of the horizontal sliding block 30, and the compression roller positioning frame 31 is vertically installed with a positioning compression roller 32 for positioning the side of the battery cell pole piece 23.

[0072] In this way, the rotating screw II is rotated, the rotary motion is converted into linear motion, which drives the connecting plate II to move up and down, and further drives the vertical lifting column II to move up and down, and further drives the lifting frame 28 to move up and down, and further drives the L-shaped positioning frame 29 to move up and down, which adjusts the height position of the positioning mechanism. Wherein, the handle 34 is rotated to drive the screw rod to rotate, and further drive the horizontal sliding block 30 to slide horizontally along the sliding groove, so as to adjust the horizontal distance between the positioning compression roller 32 and the battery cell pole piece 23, and position the battery cell pole piece 23 to prevent the displacement of the battery cell pole piece 23.

[0073] In summary, after the secondary slitting of the cell pole piece 23, the cell pole piece 23 is positioned between the limiting roller 15 and the positioning pressure roller 32, the U-shaped cleaning frame 12 is internally provided with a vertically rotating brush 18, when the brush 18 rotates, the upper installed blowing pipe 26 blows the burrs to the brush 18 and the cleaned burrs to the dust suction pipe 13, the burrs cleaned by the brush 18 are blocked by the brush baffle 20 and then cleaned out of the U-shaped cleaning frame 12 through the dust suction pipe 13, the limiting roller 15 and the positioning pressure roller 32 can adjust the contact gap between the cell pole piece 23 and the brush 18 to achieve the best cleaning effect, reduce the burr problem caused by the secondary slitting of the cell pole piece 23, so as to cause the diaphragm to be pierced or foreign matter when the cell is wound, so as to cause the insufficient capacity and voltage of the cell, and in a serious case, a fire safety hazard problem is caused.

[0074] It should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0075] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0076] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "on" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is less than second feature.

[0078] The above merely describes a preferred specific embodiment of the present application, but the scope of protection of the present application is not limited to this. Any person skilled in the art, within the technical range disclosed by the present application, according to the technical scheme and the inventive concept of the present application, can make equivalent replacements or changes, which should be covered within the scope of protection of the present application.

Claims

1. An electrode tab burr removal device for an electrode of an electrochemical cell, comprising a slide rail, wherein, The slide rail is provided with a sliding frame I and a sliding frame II, the sliding frame I is connected with a cleaning mechanism through a lifting mechanism I, the sliding frame II is connected with a positioning mechanism through a lifting mechanism II, the electrode tab of the battery cell is located between the cleaning mechanism and the positioning mechanism, and the cleaning mechanism can clean the edge burrs of the electrode tab of the battery cell.

2. The battery cell tab burr removal device of claim 1, wherein, The slide rail is provided with two cylindrical beams, the two ends of the cylindrical beams are respectively connected with fixed plates, the sliding frame I and the sliding frame II are provided with circular through holes matched with the cylindrical beams.

3. The battery cell tab burr removal device of claim 2, wherein, The lifting mechanism I comprises: a vertical lifting column I, which is connected with the sliding frame I in an up-down sliding mode; a rotating screw I, which is provided with external threads; a connecting plate I, the lower end of which is fixed with the upper end of the vertical lifting column I, the middle part of which is provided with a threaded hole matched with the rotating screw I, and rotating the rotating screw I can convert the rotary motion into linear motion, drive the connecting plate I to move up and down, and further drive the vertical lifting column I to move up and down.

4. The battery cell tab burr removal device of claim 3, wherein, The cleaning mechanism comprises: a U-shaped cleaning frame, the upper end of which is fixed with the lower end of the vertical lifting column I, the opening side of the U-shaped cleaning frame faces the positioning mechanism, a brush for cleaning the edge burrs of the electrode tab of the battery cell is vertically installed in the inside of the U-shaped cleaning frame, and a limiting roller for limiting the side of the electrode tab of the battery cell is installed on the edge of the inside of the U-shaped cleaning frame; a dust suction pipe, which is arranged on the back side of the opening of the U-shaped cleaning frame; a driving motor, the lower part of the U-shaped cleaning frame is provided with a motor frame, and the output shaft of the driving motor is connected with the rotating shaft of the brush through the motor frame.

5. The battery cell tab burr removal device of claim 2, wherein, The lifting mechanism II comprises: a vertical lifting column II, which is connected with the sliding frame II in an up-down sliding mode; a rotating screw II, which is provided with external threads; a connecting plate II, the lower end of which is fixed with the upper end of the vertical lifting column II, the middle part of which is provided with a threaded hole matched with the rotating screw II, and rotating the rotating screw II can convert the rotary motion into linear motion, drive the connecting plate II to move up and down, and further drive the vertical lifting column II to move up and down.

6. The battery cell tab burr removal device of claim 5, wherein, The positioning mechanism comprises: a lifting frame, the upper end of which is fixed with the lower end of the vertical lifting column II; an L-shaped positioning frame, which comprises a top frame and a side frame, the top frame is fixed at the lower end of the lifting frame, a slide rod is fixed at the lower end of the top frame, the lower part of the slide rod is provided with slide grooves on both sides, and a micrometer is arranged on the slide rod; a horizontal slide block, which is connected with the slide grooves in a sliding mode, and a screw rod is fixed on the outer side of the horizontal slide block, the screw rod is provided with a rotating handle, and rotating the rotating handle can drive the screw rod to rotate, and further drive the horizontal slide block to slide horizontally along the slide grooves; a pressure roller positioning frame, which is fixed at the lower end of the horizontal slide block, and a positioning pressure roller for positioning the side of the electrode tab of the battery cell is vertically installed on the pressure roller positioning frame.

7. The battery cell tab burr removal device of claim 4, wherein, A bearing is arranged between the rotating shaft of the brush and the upper end of the U-shaped cleaning frame.

8. The battery cell tab burr removal device of claim 7, wherein, The side of the brush is further provided with a brush baffle for blocking the burrs on the brush.

9. The battery cell tab burr removal device of claim 4, wherein, A wind pipe frame is arranged on the upper part of the opening side of the U-shaped cleaning frame, a blowing pipe is arranged on the wind pipe frame, the blowing port end of the blowing pipe is located obliquely above the edge of the electrode tab of the battery cell, and the other end of the blowing pipe is connected with a filter.

10. The battery cell tab burr removal device of claim 1, wherein, The side of the sliding frame I and the side of the sliding frame II are both provided with a locking structure for locking the position of the sliding frame I and the sliding frame II on the slide rail.

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