Pole piece transfer device for laser cutting

Abstract

The utility model relates to a pole piece transfer device for laser cutting, which comprises a tray, an accommodating groove for accommodating a pole piece is formed on the tray, a pole lug positioning groove communicated with the accommodating groove is formed on the tray, and a protective plate is arranged on one side, far away from the pole lug positioning groove, of the accommodating groove. When in use, the pole piece feeding device is placed below the discharging end of the conveying mechanism, the pole piece freely falls at the discharging end of the conveying mechanism, the head and the tail of the pole piece freely fall at the same time, and when the pole piece enters the containing groove, the periphery of the pole piece can make contact with the containing groove at the same time and keep the same height. At the moment, the tails of the pole pieces are in contact with the protection plate, the pole lugs fall into the pole lug positioning grooves, the pole pieces can be effectively prevented from being scattered in the containing grooves by positioning the tails of the pole pieces and the pole lugs, the pole pieces are prevented from being collided, and the pole pieces can be stacked in the containing grooves layer by layer in order; when the negative pole piece is received, as the pole piece is not collided, the falling of the graphite active material at the tail part of the negative pole piece can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a pole piece transport device for laser cutting. Background Art

[0002] Pole piece laser cutting technology uses a high-power density laser beam to irradiate the battery pole piece to be cut, causing it to quickly melt, vaporize or reach the ignition point, thereby forming a hole. This process is characterized by high efficiency, high precision and good stability. Pole piece laser cutting technology is widely used in the tab cutting process, battery pole piece slitting and diaphragm slitting processes in lithium battery production lines.

[0003] During the production process of stacked lithium-ion batteries, it is necessary to form precise ear shapes on the pole pieces through laser cutting technology to provide metal conductors for the battery. After the laser cutting is completed, the positive and negative pole pieces cut by the laser cutting machine need to be transferred to the stacking process for stacking assembly. Currently, the positive / negative pole pieces cut by the laser cutting machine are transferred to the conveying mechanism by a robot, and a transfer tray is placed at the discharge end of the conveying mechanism to receive the positive / negative pole pieces. However, during the production process, it was found that when the existing transfer tray receives the pole pieces, the pole pieces are easily scattered in the transfer tray and cause collisions with the transfer tray. The pole pieces are stacked unevenly, and when receiving the negative pole pieces, the tail of the negative pole piece is also hit, causing the graphite active material at the tail to fall off. Utility Model Content

[0004] Based on this, in order to solve the technical problems that when the existing transfer pallet receives the electrode sheets, the electrode sheets are easily scattered in the transfer pallet and cause collisions with the transfer pallet, the electrode sheets are stacked unevenly, and when receiving the negative electrode sheets, the tail of the negative electrode sheet is also hit, which causes the graphite active material at the tail to fall off, the utility model provides a laser cutting electrode sheet transfer device.

[0005] The utility model provides a laser cutting electrode transfer device, which includes a tray, a receiving groove for receiving the electrode, a tab positioning groove connected to the receiving groove is opened on the tray, and a protective plate is provided on the side of the receiving groove away from the tab positioning groove.

[0006] The utility model provides a receiving groove for accommodating the electrode pieces and a pole ear positioning groove for positioning the electrode ear on the tray, and provides a protective plate on one side of the receiving groove. When in use, the tray is placed under the discharge end of the conveying mechanism and the position of the tray is adjusted. The electrode pieces that have been laser cut are transferred to the conveying mechanism by the robot arm. The electrode pieces fall freely at the discharge end of the conveying mechanism, and the head and tail of the electrode pieces fall freely at the same time. When entering the receiving groove, the four sides of the electrode pieces will contact the receiving groove at the same time and maintain the same height. At this time, the tail of the electrode piece contacts the protective plate and the pole ear falls into the pole ear positioning groove. By positioning the tail of the electrode piece and the pole ear, the electrode pieces can be effectively prevented from being scattered in the receiving groove, and the electrode pieces can be avoided from being collided. The electrode pieces can be stacked layer by layer in an orderly manner in the receiving groove; when receiving the negative electrode piece, since the electrode piece will not be collided, the shedding of the graphite active material at the tail of the negative electrode piece can be reduced, and the damage of the negative electrode piece can be avoided.

[0007] As a further improvement of the above solution of the present invention, the accommodating groove is a groove body structure with a rectangular cross-section.

[0008] As a further improvement of the above solution of the present invention, the depth of the accommodating groove is 400-420 mm.

[0009] As a further improvement of the above solution of the present invention, the depth of the tab positioning groove is equal to the depth of the accommodating groove.

[0010] As a further improvement to the above solution of the present invention, the receiving slot is open on one side away from the tab positioning slot, and a protective plate is detachably connected to the tray to seal the open end of the receiving slot. The detachable connection between the protective plate and the tray allows for convenient transport of electrodes of different sizes by matching protective plates of different shapes or adjusting their position.

[0011] As a further improvement of the above solution of the present invention, a stopper is provided on the side of the protective plate away from the tray, the stopper is in contact with the protective plate and is connected to the protective plate and the tray.

[0012] As a further improvement of the above solution of the present invention, the protective plate is made of foam board, mica board, plastic board or steel board.

[0013] As a further improvement of the above solution of the present invention, the tab positioning groove is a groove structure with a rectangular cross-section.

[0014] As a further improvement of the above solution of the present invention, the thickness of the protective plate is 1-2 mm.

[0015] As a further improvement of the above solution of the present invention, the distance between the inner wall of the accommodating groove and the edge of the pole piece is 1-3 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model provides a receiving groove for accommodating the electrode pieces and a pole ear positioning groove for positioning the electrode ear on the tray, and provides a protective plate on one side of the receiving groove. When in use, the tray is placed under the discharge end of the conveying mechanism and the position of the tray is adjusted. The electrode pieces that have been laser cut are transferred to the conveying mechanism by the robot arm. The electrode pieces fall freely at the discharge end of the conveying mechanism, and the head and tail of the electrode pieces fall freely at the same time. When entering the receiving groove, the four sides of the electrode pieces will contact the receiving groove at the same time and maintain the same height. At this time, the tail of the electrode piece contacts the protective plate and the pole ear falls into the pole ear positioning groove. By positioning the tail of the electrode piece and the pole ear, the electrode pieces can be effectively prevented from being scattered in the receiving groove, and the electrode pieces can be avoided from being collided. The electrode pieces can be stacked layer by layer in an orderly manner in the receiving groove; when receiving the negative electrode piece, since the electrode piece will not be collided, the shedding of the graphite active material at the tail of the negative electrode piece can be reduced, and the damage of the negative electrode piece can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a laser cutting electrode transfer device proposed in an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of usage;

[0020] Figure 3 for Figure 2 A top view of

[0021] Figure 4 for Figure 2 Side view of

[0022] Figure 5 This is a structural schematic diagram of a tray in a laser cutting electrode transfer device proposed in an embodiment of the utility model.

[0023] Figure numerals: 1, tray; 2, pole piece; 3, receiving groove; 4, pole ear positioning groove; 5, protective plate; 6, stopper. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to specific embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] Reference Figures 1-4 , this embodiment proposes a laser cutting electrode transfer device, which includes a tray 1.

[0027] Combine Figure 5 In this embodiment, the tray 1 is generally rectangular in shape, with a recessed rectangular receiving slot 3 formed on the top surface. A tab positioning slot 4 is provided in the middle of one longitudinal side of the tray 1, communicating with the receiving slot 3. The side of the receiving slot 3 facing away from the tab positioning slot 4 is open. In this embodiment, the tray 1 is entirely made of steel. Of course, in other embodiments, the tray 1 may be made of other materials.

[0028] The tray 1 is provided with a protective plate 5 arranged along the length direction of the tray 1 at the open end of the receiving groove 3. The protective plate 5 is in close contact with the tray 1 to seal the open end of the receiving groove 3. In this embodiment, a stopper 6 is provided on the side of the protective plate 5 away from the tray, and the length direction of the stopper 6 is consistent with the length direction of the protective plate 5. A plurality of screws pass through the stopper 6, the protective plate 5 and the tray 1 in sequence. The protective plate 5 is detachably connected to the tray 1, and the transportation of electrodes of different sizes can be facilitated by matching protective plates 5 of different shapes or adjusting the position of the protective plate 5. Of course, in other embodiments, the protective plate 5 and the tray 1 can also be connected by pin connection or snap connection.

[0029] When this embodiment is in use, the tray 1 is placed under the discharge end of the conveying mechanism and the position of the tray is adjusted. The pole piece 2 that has completed laser cutting is transferred to the conveying mechanism by the robot arm. The pole piece 2 falls freely at the discharge end of the conveying mechanism, and the head and tail of the pole piece 2 fall freely at the same time. When entering the receiving groove 3, the four sides of the pole piece 2 will contact the receiving groove 3 at the same time and maintain the same height. At this time, the tail of the pole piece 2 contacts the protective plate 5 and the pole ear falls into the pole ear positioning groove 4. By positioning the tail and the pole ear of the pole piece 2, the pole piece 2 can be effectively prevented from being scattered in the receiving groove 3, and the pole piece 2 can be avoided from being collided. The pole piece 2 can be stacked layer by layer in an orderly manner in the receiving groove 3; when receiving the negative electrode piece, since the pole piece will not be collided, the shedding of the graphite active material at the tail of the negative electrode piece can be reduced, and damage to the pole piece 2 can be avoided.

[0030] In this embodiment, the size of the accommodating groove 3 needs to meet the following requirements: after the electrode piece 2 is placed in the accommodating groove 3, the distance between the edge of the electrode piece 2 and the inner wall of the accommodating groove 3 is 1-3 mm.

[0031] In this embodiment, the depth of the accommodating groove 3 is 400-420 mm, and the depth of the tab positioning groove 4 is consistent with the depth of the accommodating groove 3 , so that the accommodating groove 3 can store 2000-3000 electrode pieces 2 .

[0032] In this embodiment, the thickness of the protective plate 5 is 1-2 mm, and the protective plate 5 can be a foam board, a mica board, a plastic board, a steel board, etc., including but not limited to the above types of materials.

[0033] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A laser cutting electrode transfer device, characterized in that: The tray (1) comprises a tray (1) having a receiving groove (3) for receiving a pole piece (2), a tab positioning groove (4) communicating with the receiving groove (3) and a protective plate (5) provided on a side of the receiving groove (3) away from the tab positioning groove (4).

2. The electrode transfer device for laser cutting according to claim 1, characterized in that: The accommodating groove (3) is a groove structure with a rectangular cross section.

3. The electrode transfer device for laser cutting according to claim 1, characterized in that: The depth of the accommodating groove (3) is 400-420 mm.

4. The electrode transfer device for laser cutting according to claim 3, characterized in that: The depth of the tab positioning groove (4) is equal to the depth of the accommodating groove (3).

5. The electrode transfer device for laser cutting according to claim 1, characterized in that: The side of the receiving groove (3) away from the tab positioning groove (4) is open, and the protective plate (5) is detachably connected to the tray (1) to seal the open end of the receiving groove (3).

6. The electrode transfer device for laser cutting according to claim 5, characterized in that: A stopper (6) is provided on a side of the protective plate (5) away from the tray (1); the stopper (6) is fitted with the protective plate (5) and is connected to the protective plate (5) and the tray (1).

7. The electrode transfer device for laser cutting according to claim 1, characterized in that: The protective plate (5) is made of foam board, mica board, plastic board or steel board.

8. The electrode transfer device for laser cutting according to claim 1, characterized in that: The tab positioning groove (4) is a groove structure with a rectangular cross section.

9. The electrode transfer device for laser cutting according to claim 1, characterized in that: The thickness of the protective plate (5) is 1-2 mm.

10. The electrode transfer device for laser cutting according to claim 1, characterized in that: The distance between the inner wall of the accommodating groove (3) and the edge of the pole piece (2) is 1-3 mm.

Images