Pole piece cutting base plate mechanism

Abstract

The application discloses a kind of polar piece cutting bottom plate mechanism, for adsorbing polar piece and dust removal to polar piece in the process of laser cutting a polar piece.Polar piece cutting bottom plate mechanism includes a cutting seat, cutting seat is close to the side of polar piece and forms with polar piece parallel, in different plane first surface and second surface, first surface is provided with a plurality of negative pressure holes for adsorbing polar piece, second surface is provided with cutting port for dust removal to polar piece.The polar piece cutting bottom plate mechanism of the application is by being provided with parallel with polar piece, in different plane first surface and second surface, block first surface adsorbs dust, improve the adsorption of first surface to polar piece, improve tab cutting precision.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery automation equipment, and particularly relates to an electrode cutting base plate mechanism. Background Technology

[0002] In the electrode manufacturing process, a laser cutting machine is often used to cut the edges of the electrode to form the tabs. To solve the problems of electrode shaking and defocusing and dust accumulation during cutting, the electrode cutting base plate mechanism usually incorporates a vacuum negative pressure mechanism and a dust removal mechanism along the electrode transport path. The vacuum negative pressure mechanism holds the electrode in place to prevent it from shaking or defocusing during the cutting process. The dust removal mechanism removes dust from the electrode simultaneously with the laser cutting process.

[0003] However, existing electrode cutting base plate mechanisms have a problem: the vacuum negative pressure mechanism easily attracts dust generated during laser cutting, causing dust to clog the negative pressure port. This affects the vacuum negative pressure mechanism's adsorption effect on the electrode, and consequently affects the cutting accuracy of the electrode tabs. Summary of the Invention

[0004] The purpose of this invention is to provide an electrode cutting base plate mechanism that improves the cutting accuracy of electrode sheets.

[0005] To achieve the above objectives, the electrode cutting base plate mechanism of the present invention is used to adsorb the electrode and remove dust from the electrode during the laser cutting process. The electrode cutting base plate mechanism includes a cutting seat. The side of the cutting seat near the electrode forms a first surface and a second surface that are parallel to the electrode and located on different planes. The first surface is provided with a plurality of negative pressure holes for adsorbing the electrode, and the second surface is provided with a cutting opening for removing dust from the electrode.

[0006] In one embodiment of the electrode cutting base plate mechanism of the present invention, the second surface is closer to the electrode than the first surface.

[0007] In one embodiment of the electrode cutting base plate mechanism of the present invention, a vacuum negative pressure mechanism is further included. The vacuum negative pressure mechanism includes a first cavity disposed inside the cutting seat, a plurality of negative pressure holes communicating with the first cavity, and a negative pressure device connected to the outside of the first cavity.

[0008] In one embodiment of the electrode cutting base plate mechanism of the present invention, a supplementary air inlet communicating with the first cavity is provided on one side surface of the cutting seat, a supplementary air plate is installed on the cutting seat at the supplementary air inlet, and a supplementary air adjustment plate is installed in the center of the supplementary air plate through a handle. Both the supplementary air plate and the supplementary air adjustment plate are provided with air inlets of the same shape.

[0009] In one embodiment of the electrode cutting base plate mechanism of the present invention, a dust removal mechanism is further included. The dust removal mechanism includes a second cavity disposed inside the cutting seat, the second cavity being connected to the cutting opening, and a dust suction pipe being connected to the outside of the second cavity.

[0010] In one embodiment of the electrode cutting base plate mechanism of the present invention, an electrode pressing plate is further provided on the cutting seat, and a gap is formed between the electrode pressing plate and the second surface for the electrode to pass through.

[0011] In one embodiment of the electrode cutting base plate mechanism of the present invention, a partition roller is rotatably disposed at the connection between the first surface and the second surface, and a guide roller is rotatably disposed at the end of the first surface and the second surface away from the partition roller.

[0012] In one embodiment of the electrode cutting base plate mechanism of the present invention, the cutting seat is provided with arc-shaped grooves at positions corresponding to the partition roller and the guide roller, and the two ends of the partition roller and the guide roller are limited in the corresponding arc-shaped grooves by screws.

[0013] In one embodiment of the electrode cutting base plate mechanism of the present invention, the longitudinal section of the arc groove is fan-shaped, and the arc angle of the fan shape is greater than 180 degrees.

[0014] In one embodiment of the electrode cutting base plate mechanism of the present invention, the arc groove of the roller is provided with an inclined surface, and the arc groove of the partition roller is provided with a clearance groove.

[0015] In summary, the electrode cutting base plate mechanism of the present invention, by setting a first surface and a second surface that are parallel to the electrode and located on different planes, blocks the adsorption of dust on the first surface, prevents the negative pressure hole set on the first surface from becoming blocked, improves the adsorption force of the first surface on the electrode, prevents the electrode from shaking, and improves the cutting accuracy of the electrode tab. Attached Figure Description

[0016] Figure 1 This is a structural diagram of one embodiment of the electrode cutting base plate mechanism;

[0017] Figure 2 yes Figure 1 Structural diagram of the middle cutting seat;

[0018] Figure 3A yes Figure 1 A diagram of the split structure;

[0019] Figure 3B yes Figure 1 A diagram of the split structure from another perspective;

[0020] Figure 4 yes Figure 1 Left view of the middle cutting seat in conjunction with the guide roller and the partition roller;

[0021] Figure 5 Figure 3 shows the structure for increasing the contact area between the roller and the electrode sheet.

[0022] In the diagram: 100, cutting seat; 110, front surface; 111, first surface; 112, second surface; 113, arc groove; 114, screw; 115, bevel; 116, clearance groove; 120, rear surface; 130, left surface; 140, right surface; 150, upper surface; 160, lower surface; 200, vacuum negative pressure mechanism; 210, first cavity; 220, negative pressure hole; 230, first through hole; 300, dust removal mechanism; 310, second cavity; 320, cutting opening. 330. Suction pipe; 400. Partition roller; 500. Electrode pressure plate fixing block; 510. Electrode pressure plate; 600. Air inlet; 610. Air inlet plate; 620. Handle; 630. Air inlet adjustment plate; 640. Air inlet; 700. Through roller; 800. Quick release assembly; 810. Fixing plate; 820. Quick release slide rail; 830. Quick release slider; 840. Quick release handle; 850. Slide groove; 860. Quick release slider limit plate; 880. Quick release slide rail base; 881. Second through hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0024] like Figure 1 , Figure 2 As shown in Figure 3, an embodiment of the electrode cutting base plate mechanism of the present invention includes a cutting seat 100 that is integrally rectangular. The cutting seat 100 has opposing front surfaces 110 and rear surfaces 120, left surfaces 130 and right surfaces 140, upper surfaces 150 and lower surfaces 160 (e.g., ...). Figure 4 , 5 (As shown). An electrode is parallel to the front surface 110 of the cutting holder 100 and is conveyed from one end of the upper surface 150 of the cutting holder 100 to one end of the lower surface 160 of the cutting holder 100. A laser assembly (not shown) is provided on one side of the front surface 110 of the cutting holder 100. The laser emitted by the laser assembly is perpendicular to the front surface 110 of the cutting holder 100, and cuts the edge of the conveyed electrode to form an electrode tab.

[0025] As shown in Figure 3, a vacuum negative pressure mechanism 200 and a dust removal mechanism 300 are sequentially arranged on the cutting seat 100 along the electrode conveying direction. The vacuum negative pressure mechanism 200 and the dust removal mechanism 300 respectively form a first surface 111 and a second surface 112 on the front surface 110 of the cutting seat 100, which are parallel to the electrode and located on different planes. In this embodiment, a partition roller 400 is rotatably arranged at the connection between the first surface 111 and the second surface 112 for conveying the electrode. In other embodiments, the connection between the first surface 111 and the second surface 112 can also adopt a smooth transition method, such as a rounded chamfer.

[0026] The vacuum negative pressure mechanism 200 includes a first cavity 210 disposed inside the cutting seat 100 and a plurality of negative pressure holes 220 disposed on the first surface 111 and communicating with the first cavity 210. The upper surface 150 of the cutting seat 100 is provided with a first through hole 230 communicating with the first cavity 210, and the first through hole 230 is used to connect a negative pressure device (not shown). The vacuum negative pressure mechanism 200 can adsorb the electrode sheet during electrode sheet conveying and cutting, preventing the electrode sheet from shaking.

[0027] The dust removal mechanism 300 includes a second cavity 310, which is independent of the first cavity 210 and is disposed inside the cutting seat 100, and a cutting opening 320, which is disposed on the second surface 112 and communicates with the second cavity 310. A suction pipe 330, which communicates with the second cavity 310, is disposed on the rear surface 120 of the cutting seat 100. The laser cuts the electrode sheet at the cutting opening 320, and the dust on the electrode sheet is removed through the second cavity 310 and the suction pipe 330.

[0028] If the first surface 111 and the second surface 112 are on the same plane, the negative pressure of the vacuum negative pressure mechanism 200 will be transmitted to the entire plane through the front surface 110 of the cutting seat 100. Dust generated during electrode cutting on the second surface 112 will rise to the first surface 111, potentially clogging the negative pressure hole 220 and weakening the adsorption force of the vacuum negative pressure mechanism 200 on the electrode. During laser cutting of the electrode, if the electrode vibrates, it will affect the cutting accuracy of the electrode tab. In this embodiment, setting the first surface 111 and the second surface 112 to be on different planes can prevent the vacuum negative pressure mechanism 200 from drawing dust from the second surface 112, thus preventing clogging of the negative pressure hole 220. Figure 4 As shown, in this embodiment, the preferred second surface 112 is closer to the electrode than the first surface 111. The second surface 112 serves as a reference surface, and the electrode passes through the second surface 112. The first surface 111 and the electrode are separated by a certain gap to adsorb the electrode.

[0029] The first surface 111 and the second surface 112 are on different planes, and a partition roller 400 is rotatably connected at their connection point, which can play the role of transition and support for the electrode sheet.

[0030] Refer again Figure 3A , Figure 3B As shown, to reduce vibration during electrode cutting, an electrode clamping block 500 is provided on the right surface 140 of the cutting seat 100. The electrode clamping block 500 is screwed to which an electrode clamping plate 510 is mounted, thus positioning the electrode clamping plate 510 above the cutting opening 320 to avoid obstructing the laser cutting operation. This method creates a gap between the electrode clamping plate 510 and the second surface 112, allowing the electrode to pass through. This gap limits the vibration of the electrode during laser cutting, improving the cutting accuracy of the electrode tab.

[0031] The electrode plate 510 and the electrode plate fixing block 500 are fixed by screws and oblong holes. The gap between the electrode plate 510 and the second surface 112 can be adjusted by the oblong holes to accommodate electrodes of different thicknesses.

[0032] The left surface 130 of the cutting seat 100 is provided with an air supply port 600 that communicates with the first cavity 210. An air supply plate 610 is installed on the left surface 130 of the cutting seat 100 at the air supply port 600 by screws. An air supply adjustment plate 630 is installed on the center of the air supply plate 610 by a handle 620. Both the air supply plate 610 and the air supply adjustment plate 630 are provided with air inlets 640 of the same shape. By adjusting the rotation of the air supply adjustment plate 630 by the handle 620, the overlap between the air inlets 640 of the air supply adjustment plate 630 and the air inlets 640 of the air supply plate 610 can be adjusted, and the air force of the negative pressure hole 220 on the first surface 111 can be quickly adjusted.

[0033] Both the first surface 111 and the second surface 112 have a guide roller 700 rotatably mounted at the end furthest from the partition roller 400. Specifically, a guide roller 700 is mounted at the connection point between the first surface 111 and the upper surface of the cutting seat 100, and at the connection point between the second surface and the lower surface 160 of the cutting seat 100. Both guide rollers 700 and the partition roller 400 abut against the electrode sheet, supporting the conveying of the electrode sheet. The two guide rollers 700 and the partition roller 400 are installed in the same way: Arc-shaped grooves 113 are machined on the front surface 110 of the cutting seat 100, at the locations where the guide rollers 700 and partition rollers 400 are positioned. The extending direction of the arc-shaped grooves 113 is parallel to the axial direction of the guide rollers 700 and partition rollers 400, and the arc-shaped grooves 113 penetrate the left surface 130 and right surface 140 of the cutting seat 100. The guide rollers 700 and partition rollers 400 are inserted into the arc-shaped grooves 113 along the axial direction, and the outer sides of the arc-shaped grooves 113 are at least partially closed by the nuts of screws 114 at both ends, thereby limiting the guide rollers 700 and partition rollers 400 to their respective arc-shaped grooves 113. Figure 4 As shown, the longitudinal section of the arc groove 113 is fan-shaped, and the arc angle α of the fan shape is greater than 180 degrees, which can prevent the roller 700 and the partition roller 400 from falling off the arc groove 113.

[0034] Refer again Figure 3A , 3B As shown, the arc-shaped grooves 113 of the two rollers 700 are also provided with inclined surfaces 115, and the arc-shaped grooves 113 of the partition roller 400 are provided with clearance grooves 116, which can reduce the friction between the rollers 700, the partition roller 400 and the arc-shaped grooves 113. In addition, the inclined surfaces 115 can not only reduce dust accumulation, but also, when the electrode quality is poor, the cutting seat 100 can be moved as a whole to the electrode side to support the electrode. The inclined surfaces 115 can increase the contact area between the rollers 700 and the electrode, such as... Figure 5 As shown.

[0035] Reference Figure 1 The cutting seat 100 is mounted on a fixed plate 810 via a quick-release assembly 800. The quick-release assembly 800 includes a quick-release slide rail 820 disposed on the fixed plate 810, a quick-release slider 830 disposed on the rear surface 120 of the cutting seat 100, and a quick-release handle 840 disposed on the quick-release slider 830. The extension direction of the quick-release slide rail 820 is parallel to the width direction of the electrode sheet. The quick-release slider 830 cooperates with the quick-release slide rail 820 to quickly disassemble the cutting seat 100. The quick-release slide rail 820 has a groove 850 penetrating the fixed plate 810 to accommodate the quick-release handle 840. By adjusting the tightness of the engagement between the quick-release slider 830 and the quick-release slide rail 820 via the quick-release handle 840, the cutting seat 100 can be quickly locked onto the quick-release slide rail 820.

[0036] The quick-release assembly 800 also includes a quick-release slider limiting plate 860 disposed on one end of the fixed plate 810 along the extension direction of the quick-release slide rail 820, multiple magnetic components disposed on the quick-release slider limiting plate 860, and a quick-release slide rail base 880 jointly mounted on the upper surface 150 of the fixed plate 810 and the quick-release slider limiting plate 860. The quick-release slide rail base 880 is provided with a second through hole 881 corresponding to the first through hole 230. The first through hole 230 and the second through hole 881 are connected to the negative pressure device, so that the connection between the electrode cutting base plate mechanism and the negative pressure device will not be affected when the cutting seat 100 is disassembled. During installation, when the cutting seat 100 moves to the installation position, the magnetic components attract the quick-release slider 830 to fix the cutting seat 100, and then the quick-release handle 840 is locked to prevent the position of the cutting seat 100 from shifting during the tightening of the handle, making installation convenient.

[0037] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An electrode cutting base plate mechanism, used to adsorb and remove dust from an electrode during laser cutting, characterized in that, The electrode cutting base plate mechanism includes a cutting seat. The side of the cutting seat near the electrode forms a first surface and a second surface that are parallel to the electrode and located on different planes. The first surface is provided with a plurality of negative pressure holes for adsorbing the electrode, and the second surface is provided with a cutting opening for removing dust from the electrode. The second surface is closer to the electrode plate than the first surface; a partition roller is rotatably disposed at the junction of the first and second surfaces.

2. The electrode cutting base plate mechanism as described in claim 1, characterized in that, It also includes a vacuum negative pressure mechanism, which includes a first cavity disposed inside the cutting seat, a plurality of negative pressure holes connected to the first cavity, and a negative pressure device connected to the outside of the first cavity.

3. The electrode cutting base plate mechanism as described in claim 2, characterized in that, One side surface of the cutting seat is provided with an air supply port that communicates with the first cavity. An air supply plate is installed on the cutting seat at the air supply port. An air supply adjustment plate is installed in the center of the air supply plate through a handle. Both the air supply plate and the air supply adjustment plate are provided with air inlets of the same shape.

4. The electrode cutting base plate mechanism as described in claim 1, characterized in that, It also includes a dust removal mechanism, which includes a second cavity disposed inside the cutting seat, the second cavity being connected to the cutting opening, and a dust suction pipe connected to the outside of the second cavity.

5. The electrode cutting base plate mechanism as described in claim 1, characterized in that, The cutting seat is also provided with an electrode pressing plate, and a gap is formed between the electrode pressing plate and the second surface for the electrode to pass through.

6. The electrode cutting base plate mechanism as described in claim 1, characterized in that, Both the first surface and the second surface have a roller rotatably mounted at the end furthest from the separating roller.

7. The electrode cutting base plate mechanism as described in claim 6, characterized in that, The cutting seat is provided with arc-shaped grooves at positions corresponding to the partition roller and the guide roller, and both ends of the partition roller and the guide roller are limited in the corresponding arc-shaped grooves by screws.

8. The electrode cutting base plate mechanism as described in claim 7, characterized in that, The longitudinal section of the arc groove is fan-shaped, and the arc angle of the fan shape is greater than 180 degrees.

9. The electrode cutting base plate mechanism as described in claim 7, characterized in that, The arc-shaped groove of the roller is provided with an inclined surface, and the arc-shaped groove of the partition roller is provided with a clearance groove.

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