Battery pole piece rolling and discharging device

Abstract

The utility model relates to the technical field of battery processing, in particular to a battery pole piece rolling and discharging device which comprises a rack, a discharging roller, a plurality of guide rollers, a connection mechanism and a tension adjusting roller, the discharging roller can be rotationally mounted at one end of the rack and is used for limiting a pole piece roll; the plurality of guide rollers can be rotatably mounted on the rack in front of the discharging end of the discharging roller; the connection mechanism is installed at the end, away from the discharging roller, of the rack, the connection mechanism is detachably covered with a protective cover, and an air outlet is formed in the protective cover and used for being communicated with the dust removal mechanism; the two ends of the tension adjusting roller can be vertically installed on the area, located between the connection mechanism and the guide roller, of the rack in a sliding mode. The battery pole piece rolling and discharging device can effectively remove battery material powder generated in the pole piece connection process, and the influence on pole piece rolling is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a battery pole piece rolling and unloading device. Background Art

[0002] The rolling of battery pole pieces is a process of combining and compacting the battery materials and substrates on the positive and negative plates. Its purpose is to increase the compaction density of the positive or negative electrode materials and improve the cycle life of the battery.

[0003] The current rolling equipment for battery pole pieces generally includes material collection and release equipment, a roller press and a cutting machine. In the actual rolling process, the pole piece is prone to breakage due to uneven force during transmission and large force during rolling; or when a roll of pole piece is about to be rolled, it is necessary to connect the ends of the two rolls of pole piece through a connecting device, so that the latter roll of pole piece can be pulled into the roller press. For example, the patent with patent publication number CN212934667U discloses a battery pole piece rolling equipment, which uses a joint belt positioning device to achieve the docking and positioning of the pole piece ends. However, in this patent, two pressing plates are used in conjunction with a flat plate to flatten and position the ends of the two pole pieces, and then dock them. However, in actual use, since the battery pole piece substrate and the battery coating material are simply coated together, the outer surface of the battery coating material is prone to powder loss during the early winding or transportation process. At the same time, the pole piece has a certain degree of deflection and different forces during the rolling process, which causes the pole piece to vibrate or collide with the pressing plate, which will cause a large amount of battery material dust on the plate. The dust of these battery coating materials will cause the pressing plate to fail to properly flatten the pole piece in the later stage, and will also press these dust on the back of the battery substrate in the process of pressing the pole piece; if these pole pieces are used in the later battery winding process, it is easy to cause the pole pieces between different layers to be difficult to be tightly wound during the battery winding process, which will make the battery have fewer turns in the same volume, seriously affecting the battery capacity. At the same time, the coating material particles adhering to the back of the battery substrate are easily deformed or even damaged when squeezed by the pressing plate, which will affect the quality and safety of the later battery. Utility Model Content

[0004] In order to overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide a battery pole piece rolling and unloading device, which can effectively remove the battery material powder generated during the pole piece connection process and reduce the impact on the pole piece rolling.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A battery pole piece roller-pressing unloading device comprises a frame, an unloading roller, a plurality of guide rollers, a docking mechanism and a tension-adjusting roller; the unloading roller is rotatably mounted on one end of the frame, and the unloading roller is used to limit the pole piece winding; a plurality of guide rollers are rotatably mounted on the frame in front of the discharging end of the unloading roller; the docking mechanism is mounted on the end of the frame away from the unloading roller, and a protective cover is detachably mounted on the docking mechanism, and an air outlet is provided on the protective cover, and the air outlet is used to connect to a dust removal mechanism; both ends of the tension-adjusting roller are vertically slidably mounted on the frame in the area between the docking mechanism and the guide roller.

[0007] Furthermore, the docking mechanism includes a mounting plate and two groups of docking pressure plates. The mounting plate is positionally adjustable and mounted on the frame. Telescopic cylinders are provided on both sides of the back end of the mounting plate. The telescopic ends of the telescopic cylinders can be movably extended out of the mounting plate. The two groups of docking pressure plates are respectively mounted on the output ends of the telescopic cylinders on both sides along the length direction of the mounting plate. The protective cover is buckled on the mounting plate.

[0008] Furthermore, a recessed area is provided in the middle of the mounting plate, a powder collecting hole is provided in the recessed area, and a dust collecting box is provided on the back side of the mounting plate at a position corresponding to the powder collecting hole.

[0009] Furthermore, a clamping block is provided on the back side of the mounting plate, and a slide groove is provided on the clamping block, and both ends of the dust collecting box can be slidably installed in the slide groove.

[0010] Furthermore, the protective cover is provided with notches on both sides of the mounting plate, and the notches cooperate with the mounting plate to form a material inlet and outlet channel.

[0011] Furthermore, both ends of the mounting plate are provided with clamping blocks, and the protective cover is provided with clamping grooves matching the clamping blocks.

[0012] Furthermore, lifting cylinders are provided on both ends of the frame, and both ends of the mounting plate are respectively mounted on the telescopic ends of the two lifting cylinders.

[0013] Furthermore, rotation grooves are provided on both sides of one end of the frame away from the docking mechanism, and a locking mechanism is provided on the rotation groove, and the locking mechanism can limit the corresponding end of the unloading roller on the frame.

[0014] Furthermore, the locking mechanism includes an arc block and a locking block with one end hinged to the one end of the arc block, the other end of the arc block is hinged to one end of the frame located at the rotating groove, a buckle is provided on the other end of the frame located at the rotating groove, the other end of the locking block can be hooked on the buckle, and an operating handle is provided on the back of the locking block.

[0015] Furthermore, slide rails are provided on both sides of the frame, and sliders are slidably mounted on the slide rails. Both ends of the tension adjustment roller are rotatably mounted on the sliders on both sides.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a battery pole piece rolling discharge device with a tension adjustment roller on the basis of the existing discharge device, and uses the tension adjustment roller to adjust the conveying tightness of the pole piece to avoid the pole piece being unevenly stressed during the conveying process and causing the pole piece to break; in addition, a protective cover is designed on the basis of the existing docking mechanism, and a dust removal mechanism is used in conjunction with the protective cover to effectively remove the powder of the coating material that falls on the docking mechanism, so as to avoid the adverse effect of the docking mechanism on the pole piece end in the later stage of the docking process, and reduce the damage of the coating material powder to the pole piece. At the same time, the protective cover can also play a dustproof role, and it can absorb the coating material particles scattered on the pole piece in conjunction with the docking mechanism, so as to avoid these scattered coating material particles from following the pole piece into the roller press and affecting the normal rolling work of the pole piece, thereby ensuring the rolling quality of the pole piece.

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an embodiment of the utility model;

[0020] Figure 2 It is a top view of an embodiment of the utility model;

[0021] Figure 3 It is a partial top view of an embodiment of the utility model;

[0022] Figure 4 yes Figure 2 The cross-sectional view along the AA direction;

[0023] Figure 5 It is a cross-sectional view of the docking mechanism in the embodiment of the utility model.

[0024] Description of Figure Numbers:

[0025] Frame 10, slider 11, rotating groove 12, arc block 13, locking block 14, buckle head 15, operating handle 16, slide rail 17, unloading roller 20, guide roller 30, docking mechanism 40, protective cover 41, air outlet 42, dust removal mechanism 43, mounting plate 44, docking pressure plate 45, telescopic cylinder 46, powder collecting hole 47, dust collecting box 48, card block 49, notch 4a, card block 4b, tension adjustment roller 50 DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] Reference Figures 1 to 5 A battery electrode sheet rolling and unloading device shown in the figure includes a frame 10, an unloading roller 20, a plurality of guide rollers 30, a connecting mechanism 40 and a tension adjusting roller 50; the unloading roller 20 can be rotatably mounted on one end of the frame 10, and the unloading roller 20 is used to limit the electrode sheet roll; a plurality of guide rollers 30 can be rotatably mounted on the frame 10 in front of the discharge end of the unloading roller 20; the connecting mechanism 40 is installed on the end of the frame 10 away from the unloading roller 20, and the connecting mechanism 40 is detachably covered with a protective cover 41, and the protective cover 41 is provided with an air outlet 42, and the air outlet 42 is used to connect to a dust removal mechanism 43; the two ends of the tension adjusting roller 50 can be vertically slidably mounted on the frame 10 in the area between the connecting mechanism 40 and the guide roller 30.

[0028] Among them, multiple groups of unloading rollers 20 can be provided, and multiple groups of unloading rollers 20 are arranged side by side on the frame 10 in sequence, so that it is convenient for the staff to connect the pole pieces of different rolls later. In addition, the tension adjustment roller 50 in this application can adopt the adjustment method of gravity or counterweight, and its main purpose is to automatically adjust the tension of the pole piece. For this reason, the design can adopt a conventional design. In one embodiment of the present application, slide rails 17 are provided on both sides of the frame 10, and sliders 11 are slidably installed on the slide rails 17. The two ends of the tension adjustment roller 50 can be rotatably installed on the sliders 11 on both sides. This design uses the deadweight of the tension adjustment roller 50 to adjust the tension of the entire pole piece. Of course, in some embodiments, a spring is provided at the bottom of the slide rail 17, and the spring is used to support the slider 11, which can reduce the impact of the tension adjustment roller 50 on the pole piece when it swings up and down with the pole piece to a certain extent.

[0029] The battery pole piece rolling discharge device is provided with a tension adjustment roller 50 on the basis of the existing discharge device, and the tension adjustment roller 50 is used to adjust the conveying tightness of the pole piece to avoid the pole piece being unevenly stressed during the conveying process and causing the pole piece to break; in addition, a protective cover 41 is designed on the basis of the existing docking mechanism 40, and the dust removal mechanism 43 is used in conjunction with the protective cover 41 to effectively remove the powder of the coating material that falls on the docking mechanism 40, so as to avoid the adverse effect of the docking mechanism 40 on the pole piece end in the later docking process, and reduce the damage of the coating material powder to the pole piece. At the same time, the protective cover 41 can also play a dustproof role, and it can absorb the coating material particles scattered on the pole piece in conjunction with the docking mechanism 40, so as to avoid these scattered coating material particles following the pole piece into the roller press and affecting the normal rolling work of the pole piece, thereby ensuring the rolling quality of the pole piece.

[0030] Further, in one embodiment of the present application, a rotation groove 12 is provided on both sides of the end of the frame 10 away from the docking mechanism 40, and a locking mechanism is provided on the rotation groove 12, and the locking mechanism can limit the corresponding end of the discharge roller 20 on the frame 10. The structure of the rotation groove 12 is mainly to accommodate the discharge roller 20, so as to facilitate the positioning of the discharge roller 20.

[0031] In the above-mentioned improved solution, in order to facilitate locking the unloading roller 20, the locking mechanism includes an arc block 13 and a locking block 14 with one end hinged on one end of the arc block 13, the other end of the arc block 13 is hinged on one end of the frame 10 located at the rotating groove 12, and the frame 10 is provided with a buckle head 15 on the other end of the rotating groove 12, and the other end of the locking block 14 can be hooked on the buckle head 15, and an operating handle 16 is provided on the back of the locking block 14. The staff can twist the locking block 14 from the buckle head 15 by operating the handle 16 to open the entire arc block 13.

[0032] See also Figures 3 to 5In one embodiment of the present application, in order to better connect the two ends of the two pole pieces, the connection mechanism 40 includes a mounting plate 44 and two groups of connection pressure plates 45. The mounting plate 44 is installed on the frame 10 in an adjustable position. Telescopic cylinders 46 are provided on both sides of the back of the mounting plate 44. The telescopic ends of the telescopic cylinders 46 are movable through the mounting plate 44. The two groups of connection pressure plates 45 are respectively installed on the output ends of the telescopic cylinders 46 on both sides along the length direction of the mounting plate 44, and the protective cover 41 is buckled on the mounting plate 44. Among them, each connection pressure plate 45 can cooperate with the mounting plate 44 to loosen or deposit the end of the pole piece under the telescopic action of the corresponding telescopic cylinder 46, so as to facilitate the operation of the staff. The detachable design of the protective cover 41 is conducive to the operation of the staff. Of course, in some embodiments, an operation port can be opened on the protective cover 41 to facilitate the staff to connect the two pole pieces inside it through the operation port. Of course, in another improved embodiment, telescopic cylinders may be provided on both ends of the mounting plate 44 , and the protective cover 41 may be lifted by the telescopic cylinders, so that the staff can operate the pole piece ends on the mounting plate 44 .

[0033] See also Figure 5 In order to collect the coating material powder dropped on the mounting plate 44 during operation, a recessed area is provided in the middle of the mounting plate 44, and a powder collecting hole 47 is provided on the recessed area. A dust collecting box 48 is provided on the back of the mounting plate 44 at a position corresponding to the powder collecting hole 47. Such a design can reduce waste. In the above-mentioned embodiment, in order to facilitate the disassembly and assembly of the dust collecting box 48, in an improved embodiment of the present application, a clamping block 49 is provided on the back of the mounting plate 44, and a slide groove is provided on the clamping block 49, and both ends of the dust collecting box 48 can be slidably installed in the slide groove.

[0034] See also Figure 4 and Figure 5 In order to allow the pole piece to move through the docking mechanism 40 and ensure a certain degree of sealing between the protective cover 41 and the mounting plate 44, in one embodiment of the present application, the protective cover 41 is provided with notches 4a on both sides of the mounting plate 44, and the notches 4a cooperate with the mounting plate 44 to form a material inlet and outlet channel. In the above-mentioned improved embodiment, a brush can also be provided on the notch 4a, which is conducive to cleaning the coating material particles scattered on the pole piece.

[0035] In one embodiment of the present application, in order to facilitate the secure installation of the protective cover 41 on the mounting plate 44, a clamping block 4b is provided on both ends of the mounting plate 44, and a clamping groove matching the clamping block 4b is provided on the protective cover 41.

[0036] In one embodiment of the present application, in order to facilitate the adjustment of the height of the entire mounting plate 44 to adapt to the activity space of the pole piece, lifting cylinders are provided on both ends of the frame 10, and the two ends of the mounting plate 44 are respectively mounted on the telescopic ends of the two lifting cylinders. Of course, in some improved embodiments, the lifting cylinder can be replaced with a conventional screw structure, and the screw is rotated to cooperate with the nut installed on the mounting plate 44, so that the height of the mounting plate 44 can also be adjusted.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A battery pole piece rolling and unloading device, characterized in that: include frame; A discharge roller, which is rotatably mounted on one end of the frame, and is used to limit the pole piece roll; A plurality of guide rollers, which are rotatably mounted on the frame in front of the discharge end of the discharge roller; A docking mechanism, which is installed on one end of the frame away from the unloading roller, the docking mechanism is detachably covered with a protective cover, the protective cover is provided with an air outlet, and the air outlet is used to connect with a dust removal mechanism; The tension adjustment roller has two ends which can be vertically slidably installed on the area between the two guide rollers of the frame.

2. A battery pole piece rolling and unloading device according to claim 1, characterized in that: The docking mechanism includes a mounting plate and two groups of docking pressure plates. The mounting plate is installed on the frame in an adjustable position. Telescopic cylinders are provided on both sides of the back end of the mounting plate. The telescopic ends of the telescopic cylinders can move through the mounting plate. The two groups of docking pressure plates are respectively installed on the output ends of the telescopic cylinders on both sides along the length direction of the mounting plate. The protective cover is buckled on the mounting plate.

3. A battery pole piece rolling and unloading device according to claim 2, characterized in that: A recessed area is arranged in the middle of the mounting plate, a powder collecting hole is arranged on the recessed area, and a dust collecting box is arranged on the back side of the mounting plate at a position corresponding to the powder collecting hole.

4. A battery pole piece rolling and unloading device according to claim 3, characterized in that: A clamping block is arranged on the back side of the mounting plate, and a sliding groove is arranged on the clamping block. Both ends of the dust collecting box can be slidably mounted in the sliding groove.

5. The battery pole piece rolling and unloading device according to claim 2, characterized in that: The protective cover is provided with notches on both sides of the mounting plate, and the notches cooperate with the mounting plate to form a material inlet and outlet channel.

6. The battery pole piece rolling and unloading device according to claim 2, characterized in that: Both ends of the mounting plate are provided with clamping blocks, and the protective cover is provided with clamping grooves matching the clamping blocks.

7. A battery pole piece rolling and unloading device according to any one of claims 1 to 6, characterized in that: Rotation grooves are arranged on both sides of one end of the frame away from the docking mechanism, and a locking mechanism is arranged on the rotation groove, and the locking mechanism can limit the corresponding end of the unwinding roller on the frame.

8. The battery pole piece rolling and unloading device according to claim 7, characterized in that: The locking mechanism includes an arc block and a locking block with one end hinged to one end of the arc block, the other end of the arc block is hinged to one end of the frame located at the rotating groove, a buckle is provided on the other end of the frame located at the rotating groove, the other end of the locking block can be hooked on the buckle, and an operating handle is provided on the back of the locking block.

9. The battery pole piece rolling and unloading device according to claim 1, characterized in that: Slide rails are arranged on both sides of the frame, and sliders are slidably mounted on the slide rails. Both ends of the tension adjustment roller are rotatably mounted on the sliders on both sides.

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