Pole piece rubberizing device

Abstract

The utility model discloses a pole piece rubberizing device which comprises a rubberizing placing mechanism, a rubberizing pressing mechanism, a cutting mechanism, a rubberizing pulling mechanism and a rubberizing mechanism which are sequentially arranged along the conveying direction of an adhesive tape, the rubberizing pressing mechanism comprises a rubberizing pressing assembly, a pressure-bearing seat and a first driving unit, and the first driving unit drives the rubberizing pressing assembly to be close to the pressure-bearing seat to press the adhesive tape. The adhesive tape pulling mechanism can clamp an adhesive tape and move between the adhesive tape pressing mechanism and the adhesive tape pasting mechanism, the adhesive tape pasting mechanism comprises a suction plate extending in the conveying direction, and the suction plate can suck the adhesive tape and transfer the adhesive tape to an adhesive tape pasting station; the adhesive tape pressing mechanism further comprises an air blowing assembly, the bearing face of the pressure bearing seat is an inclined face forming an included angle with the conveying direction, the extending direction of the bearing face inclines between the conveying direction and the direction facing the adhesive tape, the air blowing assembly is arranged between the tail end of the bearing face and the cutting mechanism, and the air blowing assembly and the pressure bearing seat are located on the same side of the adhesive tape. The air blowing assembly can blow air to the adhesive tape. The device can improve the clamping success rate of the adhesive tape.

Description

Technical Field

[0001] The utility model relates to the field of battery core production, in particular to a pole piece gluing device. Background Art

[0002] After the tabs are welded to the battery cell electrodes, burrs will form at the tab welding points. It is necessary to stick tape on the tab welding points on the electrodes to prevent the burrs from damaging the electrodes when winding the electrodes. The Chinese invention application with application number 202211503235.3 discloses a glue application device, including a glue supply component, a glue pressing component, a glue pulling component, a cutting component and a glue application component. The glue pulling component can pull the tape pulled by the glue supply component to the glue application component, the glue application component presses the tape to the surface of the electrode for glue application, and the cutting component is used to cut the tape. The cross section of the cut tape is clamped by the glue pressing component to prevent the tape from retreating, and the glue pulling component re-clamps the end of the cut tape from the glue pressing component and re-draws the glue.

[0003] The cut part of the tape needs to protrude a certain distance in front of the glue pressing component to facilitate the glue pulling component to clamp the tape, and because there is a gap between the glue pressing component and the glue sticking component to form a cutting avoidance position for the cutting component, the protruding length of the tape is relatively long. However, the tape itself is relatively soft, and the protruding section of the tape may droop and fail to align with the clamping mouth of the glue pulling component, which eventually leads to clamping failure, and then causes a batch of electrodes to be un-glueed, seriously affecting production quality and production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a pole piece adhesive bonding device which can improve the success rate of adhesive tape clamping.

[0005] The utility model provides a pole piece gluing device, comprising a glue placing mechanism, a glue pressing mechanism, a cutting mechanism, a glue pulling mechanism and a glue sticking mechanism arranged in sequence along the conveying direction of the adhesive tape, the glue pressing mechanism comprising a glue pressing assembly, a pressure bearing seat and a first driving unit, the first driving unit drives the glue pressing assembly to approach the pressure bearing seat to press the adhesive tape, the glue pulling mechanism can clamp the adhesive tape and move between the glue pressing mechanism and the glue sticking mechanism, the glue sticking mechanism comprises a suction plate extending along the conveying direction, the suction plate can suck up the adhesive tape and transfer it to the gluing station; the glue pressing mechanism also comprises an air blowing assembly, the supporting surface of the pressure bearing seat is an inclined surface at an angle to the conveying direction, the extending direction of the supporting surface is inclined between the conveying direction and the direction facing the adhesive tape, the air blowing assembly is arranged between the end of the supporting surface and the cutting mechanism, the air blowing assembly and the pressure bearing seat are located on the same side of the adhesive tape, and the air blowing assembly can blow air to the adhesive tape.

[0006] As can be seen from the above scheme, in order to avoid interference between the glue-pulling mechanism and the glue-pressing mechanism when it moves to clamp the tape, the glue-pressing mechanism is not located in the movement path of the glue-pulling mechanism. Therefore, the supporting surface of the pressure seat is set as an inclined surface. The end of the cut tape can extend along the inclined surface to the clamping position of the glue-pulling mechanism, making it easier for the glue-pulling mechanism to clamp the tape. Because the tape itself is relatively soft and may sag and fail to align with the clamping opening, an air blowing component is provided between the end of the supporting surface and the cutting mechanism. The airflow of the air blowing component can guide the end of the tape to the clamping opening, thereby improving the success rate of clamping.

[0007] The preferred solution is that the glue pressing assembly includes a glue pressing roller and a pressure plate, the pressure plate includes an edge, the edge extends between the glue pressing roller and the blowing assembly, and when the glue pressing assembly is in the glue pressing position, the edge presses the tape or forms a gap with the supporting surface.

[0008] It can be seen that the glue pressing roller presses the tape to the pressure seat to prevent the tape from retreating, and the cut end of the tape may be blown up excessively by the airflow of the blowing component, causing it to deviate from the clamping port position of the glue pulling mechanism. The edge of the pressure plate and the supporting surface are set to form a gap for the tape to pass through, so that the end of the blown tape can be stabilized in the range facing the clamping port.

[0009] A further solution is that the blowing assembly is provided with a plurality of air holes arranged along the width direction of the adhesive tape, and the blowing direction of the air holes is located between the conveying direction and the direction facing the adhesive tape.

[0010] It can be seen that the several air holes arranged along the width direction of the tape can adapt to tapes of different widths. The blowing direction of the air holes is located between the conveying direction and the direction facing the tape, so that the tape can be guided to the clamping port by the air flow instead of blowing parallel to the conveying direction, resulting in poor blowing effect, or blowing towards the tape, causing the tape to be blown too much and deviate from the clamping port.

[0011] A further solution is that the blowing assembly includes a tube body extending along the width direction of the tape, and a plurality of air holes are arranged on the tube body along the width direction.

[0012] It can be seen from this that the airflow generating unit can blow air into the tube body, and the airflow is guided by the tube body and blown out through the plurality of air holes.

[0013] A further solution is that the glue pulling mechanism includes a movable plate that can be driven to slide along the conveying direction and a second driving unit, a third driving unit, a glue pulling roller and a glue pulling block arranged on the movable plate. The second driving unit drives the glue pulling roller to approach or move away from the glue pulling block to clamp the tape. The third driving unit drives the glue pulling block to move along the conveying direction. The glue pulling block and the tube body are located on the same side of the tape, and the glue pulling block can be driven to reach between the tape and the tube body.

[0014] It can be seen from this that the tube body is not in the moving path of the glue pulling block, avoiding interference with the glue pulling mechanism. The tape is blown by the air holes of the tube body to a certain gap with the tube body. The glue pulling block located on the first side of the tape can be extended between the tube body and the tape, and cooperate with the glue pulling roller on the other side of the tape to clamp the tape. The pepper block is extended between the tube body and the tape, but the length of the clamped tape is sufficient to avoid falling off due to the clamped tape being too short during the glue pulling process.

[0015] A further solution is that the glue pulling mechanism also includes a connecting rod and an adjusting rod, the middle part of the connecting rod is rotatably connected to the movable plate, the movable end of the second driving unit is connected to the first end of the connecting rod, the glue pulling roller is arranged at the first end of the adjusting rod, and the second end of the adjusting rod is provided with a mounting long hole. The second end of the adjusting rod is fixed to the second end of the connecting rod through the mounting long hole so that the distance between the glue pulling roller and the suction plate can be adjusted.

[0016] It can be seen that setting the long installation hole can adjust the fixed position of the adjusting rod and the connecting rod, thereby adjusting the distance between the glue pulling roller and the suction plate. It can be adapted to different tape models, and installation and debugging are very convenient.

[0017] A further solution is that the gluing mechanism also includes a rolling shaft, the rotation axis of the rolling shaft is parallel to the extension direction of the suction plate, the suction plate is fixed to the rolling shaft, and when the rolling shaft rotates, the cut tape can be transferred from the suction plate to the gluing station.

[0018] It can be seen that compared with the prior art disclosed that the glue pulling component needs to pull the tape through the entire glue sticking component and the glue sticking station, and then the glue sticking component pushes and pulls the tape to be pressed onto the pole piece, the present application sets a rolling shaft to rotate to transfer the tape between the glue pulling mechanism and the glue sticking station. The glue pulling mechanism will not interfere with the glue sticking mechanism. When the required length of tape is pulled out, the glue pulling mechanism can return to its position to pull the next section of tape. Compared with the prior art, the device of the present application can be more compact in the length direction and occupy less space.

[0019] A further solution is that there are two glue placing mechanisms, two glue pressing mechanisms, two cutting mechanisms, two glue pulling mechanisms and two glue sticking mechanisms, and the two rolling axes are symmetrically arranged on opposite sides of the glue sticking station.

[0020] It can be seen that the two rolling shafts are symmetrically arranged on both sides of the gluing station, the tapes on both sides of the pole piece can be glued symmetrically, the two suction plates can serve as each other's supporting surfaces, and the tapes are more firmly adhered.

[0021] A further solution is to further include a fourth driving unit, which drives the two rolling shafts to rotate synchronously through a gear set, and the two rolling shafts rotate in opposite directions.

[0022] It can be seen from this that one driving unit can drive two rolling shafts to rotate at the same time. The two rolling shafts rotate in opposite directions. When the pole piece passes between the two rolling shafts, the tangential rotation directions of the gluing positions of the two rolling shafts close to one end of the pole piece are consistent. Since the tape has a certain width, when the tangential rotation directions of the two rolling shafts are consistent, the tape that has just contacted the pole piece is exactly symmetrical to the two sides of the pole piece, and can serve as abutment supporting surfaces for each other, resulting in a better gluing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0024] Figure 1 It is a front view of an embodiment of the present utility model.

[0025] Figure 2 It is a structural diagram of an embodiment of the utility model from a first perspective.

[0026] Figure 3 yes Figure 1 Magnified view of point A.

[0027] Figure 4 yes Figure 2 Magnified view of point B. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] This embodiment provides a pole piece gluing device, such as Figures 1 to 4As shown, the device includes a mounting base 1 and a glue-dispensing mechanism 2, a glue-pressing mechanism 3, a cutting mechanism 4, a glue-pulling mechanism 5, and a glue-applying mechanism 6, arranged sequentially on the mounting base 1 along the conveyance direction of the adhesive tape 7. It should be noted that the conveyance direction of the adhesive tape 7 from the glue-dispensing mechanism 2 to the glue-pulling mechanism 5 is along the length of the adhesive tape 7, while the conveyance direction from the glue-pulling mechanism 5 to the glue-applying mechanism 6 refers to the flow order of the adhesive tape 7 between the two processes. The adhesive tape 7 passes through the rollers 21 of the glue-dispensing mechanism 2 and is introduced into the glue-pressing mechanism 3 for pressing. The glue-pulling mechanism 5 clamps the adhesive tape 7 and pulls it onto the plane of the suction plate 61 of the glue-applying mechanism 6. A clearance 41 for the cutting mechanism 4 is provided between the glue-pressing mechanism 3 and the glue-applying mechanism 6, where the cutting mechanism 4 can cut the adhesive tape 7. The suction plate 61 extends along the conveyance direction of the adhesive tape 7, i.e., the length of the adhesive tape 7 at this location. The suction plate 61 absorbs the adhesive tape 7 and transfers it to the glue-applying station for glue-applying.

[0030] The glue pressing mechanism 3 includes an air blowing component 31, a glue pressing component 32, a pressure bearing seat 33 and a first driving unit 34. Figure 3 and Figure 4 The upper, lower, left, and right directions shown in the figure are used as an example to illustrate that the pressure seat 33 is located below the adhesive pressing assembly 32, and a supporting surface 331 is provided on the top thereof for supporting the adhesive tape 7 conveyed thereon. The supporting surface 331 is an inclined surface at an angle to the conveying direction of the adhesive tape 7, and the inclination direction of the supporting surface 331 is inclined between the conveying direction and the direction facing the adhesive tape 7, that is, Figure 3 and Figure 4 In the upper left corner shown in FIG, the blowing assembly 31 is arranged between the end of the support surface 331 and the cutting mechanism 4, and the blowing assembly 31 is also located below the tape 7. The blowing assembly 31 includes a tube 311 extending along the width direction of the tape 7. The tube 311 is connected to the external air flow generating unit. The tube 311 is provided with a plurality of air holes 312 arranged along the width direction of the tape 7. The blowing direction of the air holes 312 is located between the conveying direction of the tape 7 and the direction facing the tape 7, that is, Figure 3 and Figure 4 Shown in the upper left.

[0031] Continue to refer to Figure 3 and Figure 4 As shown, the glue pressing assembly 32 is located above the conveying route of the tape 7. The glue pressing assembly 32 includes a glue pressing roller 321 and a pressure plate 322. The first driving unit 34 is a cylinder, which can drive the entire glue pressing assembly 32 down to the glue pressing position, so that the glue pressing roller 321 abuts against the supporting surface 331 above the pressure seat 33 to press the tape 7, and one side of the pressure plate 322 is fixed to the upper part of the glue pressing roller 321, and the edge 3221 of the pressure plate 322 extends between the glue pressing roller 321 and the blowing assembly 31, and when the glue pressing assembly 32 is in the glue pressing position, the edge 3221 of the pressure plate 322 and the supporting surface 331 form a gap for the tape 7 to pass through.

[0032] The glue pulling mechanism 5 of this embodiment includes a movable plate that can be driven to slide along the conveying direction of the adhesive tape 7 and a second driving unit 51, a third driving unit 52, a connecting rod 53, an adjusting rod 54, a glue pulling roller 55 and a glue pulling block 56 provided on the movable plate. Figure 3 As shown, the second drive unit 51 and the third drive unit 52 are both cylinders, and the glue pulling block 56 is arranged at the movable end of the third drive unit 52. The third drive unit 52 can drive the glue pulling block 56 to move relative to the movable plate along the conveying direction of the tape 7. The glue pulling block 56 and the tube body 311 are located on the same side of the tape 7, that is, Figure 3 and Figure 4 Below the middle tape 7, the adhesive pulling block 56 can cooperate with the adhesive pulling roller 55 located on the other side of the tape 7 to clamp the tape 7 and pull it. The adhesive pulling block 56 is in the form of an inclined block, which is convenient for extending between the tape 7 and the tube body 311 and guiding the tape 7 to extend between the adhesive pulling block 56 and the adhesive pulling roller 55. When the movable plate moves and the tape 7 is blown up by the tube body 311, the adhesive pulling block 56 can move between the tape 7 and the tube body 311.

[0033] A rotating shaft 531 is provided in the middle of the connecting rod 53, and the connecting rod 53 can be rotatably connected to the movable plate through the rotating shaft 531. The movable end of the second driving unit 51 is connected to the first end on one side of the rotating shaft 531 of the connecting rod 53. The first end of the adjusting rod 54 is installed with a glue pulling roller 55, and the second end of the adjusting rod 54 is fixed to the second end on the other side of the rotating shaft 531 of the connecting rod 53. When the second driving unit 51 pushes and pulls the first end of the connecting rod 53, the adjusting rod 54 and the glue pulling roller 55 connected to the second end of the connecting rod 53 can move closer to or away from the glue pulling block 56 and the suction plate 61. It should be noted that, if Figure 3 and Figure 4 As shown, the second end of the adjusting rod 54 in this embodiment is a mounting elongated hole 541, and the connection point of the second end of the connecting rod 53 is a mounting circular hole. Therefore, the installation position of the mounting elongated hole 541 on the mounting circular hole can be adjusted, thereby changing the distance between the glue pulling roller 55 and the suction plate 61 when the glue pulling roller 55 is closest to the suction plate 61, which is convenient for maintenance and adjustment.

[0034] like Figure 1 and Figure 2As shown, the mounting base 1 of this embodiment is equipped with two glue-dispensing mechanisms 2, glue-pressing mechanisms 3, cutting mechanisms 4, glue-pulling mechanisms 5, and glue-applying mechanisms 6. The mounting base 1 is provided with a long avoidance hole 11 for the electrode to pass through along the length direction. The width direction of the electrode is consistent with the length direction of the long avoidance hole 11. The glue-applying mechanism 6 includes a rolling shaft 62. The suction plate 61 is fixed to the rolling shaft 62. The rotation axis of the rolling shaft 62 is parallel to the extension direction of the suction plate 61 and also parallel to the width direction of the electrode. The rolling shafts 62 of the two glue-applying mechanisms 6 are symmetrically arranged on both sides of the electrode. The device also includes a fourth drive unit 81, which is a drive motor. Its rotating end is connected to one of the rolling shafts 62, and drives the other rolling shaft 62 to rotate synchronously through two gears 82 connected by teeth. The rotation directions of the two rolling shafts 62 are opposite. When the electrode reaches the gluing station, the two rolling shafts 62 rotate 180° at the same time, and the two cut tapes 7 adsorbed on the two suction plates 61 are transferred to the electrode for gluing. The position where the suction plate 61 contacts the electrode is the gluing station.

[0035] The working principle of this device is that the adhesive tape 7 is led out to the adhesive pressing mechanism 3 through the adhesive releasing mechanism 2 and pressed by the adhesive pressing mechanism 3. The adhesive tape 7 is lifted up under the guidance of the supporting surface 331 and the blowing component 31 and waits for the adhesive pulling mechanism 5 to pull the adhesive. The movable plate of the adhesive pulling mechanism 5 approaches the adhesive pressing mechanism 3 to clamp the adhesive tape 7. At this time, the adhesive pressing mechanism 3 releases the adhesive tape 7, and the adhesive pulling mechanism 5 pulls out the adhesive tape 7 to the suction plate 61 for suction. At this time, the adhesive pressing mechanism 3 presses the adhesive tape 7 again, and the cutting mechanism 4 cuts the adhesive tape 7 between the suction plate 61 and the adhesive pressing. After the adhesive tape 7 is sucked by the suction plate 61, the adhesive pulling block 56 is driven to move along the conveying direction of the adhesive tape 7, and the adhesive pulling roller 55 continues to be driven to push the end of the adhesive tape 7 close to the suction plate 61, so that the end of the adhesive tape 7 is separated from the adhesive pulling block 56 and is sucked by the suction plate 61. Finally, the rolling shaft 62 rotates and drives the cut adhesive tape 7 to the gluing station for gluing.

[0036] This device can greatly improve the success rate of the adhesive tape grabbing mechanism, and the spatial layout of the device is more compact than the existing technology.

[0037] The above embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it 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 based on the appended claims.

Claims

1. A device for laminating an electrode, comprising a glue-releasing mechanism, a glue-pressing mechanism, a cutting mechanism, a glue-pulling mechanism, and a glue-laminating mechanism arranged in sequence along a conveying direction of an adhesive tape; the glue-pressing mechanism comprising a glue-pressing assembly, a pressure-bearing seat, and a first driving unit, the first driving unit driving the glue-pressing assembly toward the pressure-bearing seat to press the adhesive tape; the glue-pulling mechanism capable of clamping the adhesive tape and moving between the glue-pressing mechanism and the glue-laminating mechanism; the glue-laminating mechanism comprising a suction plate extending along the conveying direction, the suction plate capable of sucking up the adhesive tape and transferring it to a glue-laminating station; It is characterized by: The glue pressing mechanism also includes a blowing assembly. The supporting surface of the pressure seat is an inclined surface at an angle to the conveying direction. The extension direction of the supporting surface is inclined between the conveying direction and the direction facing the tape. The blowing assembly is arranged between the end of the supporting surface and the cutting mechanism. The blowing assembly and the pressure seat are located on the same side of the tape, and the blowing assembly can blow air to the tape.

2. The electrode gluing device according to claim 1, characterized in that: The glue pressing assembly includes a glue pressing roller and a pressure plate, the pressure plate includes an edge, and the edge extends between the glue pressing roller and the blowing assembly. When the glue pressing assembly is in the glue pressing position, the edge presses the tape or forms a gap with the supporting surface.

3. The electrode gluing device according to claim 2, characterized in that: The air blowing assembly is provided with a plurality of air holes arranged along the width direction of the adhesive tape, and the air blowing direction of the air holes is located between the conveying direction and the direction facing the adhesive tape.

4. The electrode gluing device according to claim 3, characterized in that: The air blowing assembly includes a tube body extending along the width direction of the adhesive tape, and a plurality of air holes are arranged on the tube body along the width direction.

5. The electrode gluing device according to claim 4, characterized in that: The glue pulling mechanism includes a movable plate that can be driven to slide along the conveying direction, and a second driving unit, a third driving unit, a glue pulling roller and a glue pulling block arranged on the movable plate. The second driving unit drives the glue pulling roller to move closer to or away from the glue pulling block to clamp the adhesive tape. The third driving unit drives the glue pulling block to move along the conveying direction. The glue pulling block and the tube body are located on the same side of the adhesive tape. The glue pulling block can be driven to reach between the adhesive tape and the tube body.

6. The electrode gluing device according to claim 5, characterized in that: The glue pulling mechanism also includes a connecting rod and an adjusting rod. The middle part of the connecting rod is rotatably connected to the movable plate. The movable end of the second driving unit is connected to the first end of the connecting rod. The glue pulling roller is arranged at the first end of the adjusting rod. The second end of the adjusting rod is provided with a mounting long hole. The second end of the adjusting rod is fixed to the second end of the connecting rod through the mounting long hole so that the distance between the glue pulling roller and the suction plate is adjustable.

7. The electrode gluing device according to any one of claims 1 to 6, characterized in that: The gluing mechanism further includes a rolling shaft, the rotation axis of which is parallel to the extension direction of the suction plate. The suction plate is fixed to the rolling shaft. When the rolling shaft rotates, the cut tape can be transferred from the suction plate to the gluing station.

8. The electrode gluing device according to claim 7, characterized in that: There are two of each of the glue placing mechanism, the glue pressing mechanism, the cutting mechanism, the glue pulling mechanism and the glue sticking mechanism, and the two rolling axes are symmetrically arranged on opposite sides of the glue sticking station.

9. The electrode gluing device according to claim 8, characterized in that: It also includes a fourth driving unit, which drives the two rolling shafts to rotate synchronously through a gear set, and the two rolling shafts rotate in opposite directions.

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