Lithium ion battery pole piece double-sided coating device

Abstract

The utility model discloses a lithium ion battery pole piece double-side coating device which comprises a base plate, a wind-up roller and a guide roller, the wind-up roller and the guide roller are rotatably installed on the front surface of the base plate, a slidable rear plate is installed on the front surface of the base plate, a tensioning carrier roller is rotatably installed on the front surface of the rear plate, and the tensioning carrier roller is pressed on the top of a lithium ion battery pole piece. A limiting structure is further arranged between the T-shaped sliding block and the base plate. According to the utility model, the lithium ion battery pole piece double-sided coating device in the prior art is improved and optimized, and the rear plate, the T-shaped sliding block, the T-shaped sliding groove and the limiting structure are additionally designed, so that the height of the tensioning carrier roller can be flexibly adjusted up and down according to different tensioning requirements; the adjustment convenience of the whole lithium ion battery pole piece double-face coating device is greatly improved, an operator can conveniently and rapidly adjust the tension degree of the tensioning carrier roller when using the lithium ion battery pole piece double-face coating device, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pole piece coating devices, and in particular relates to a double-sided coating device for a lithium ion battery pole piece. Background Art

[0002] With the application of lithium-ion batteries in various industries, the market has continuously put forward higher and more diverse requirements for the performance and life of lithium-ion batteries. The pole piece in the battery is the component that has the greatest impact on the overall performance of the battery, and pole piece coating is the most critical process for the manufacture of battery pole pieces. In the production and processing of lithium-ion battery pole pieces, a double-sided coating device is required to coat both sides of the battery pole piece. For example, the existing patent with publication number CN217017203U discloses "a double-sided coating device for lithium batteries, including a reel and a reel; an oven, arranged between the reel and the reel; an upper die head and a lower die head are arranged between the reel and the oven, and a sliding guide rail is arranged on the side wall of the oven, and a plurality of sliding rollers are installed on the sliding guide rail". It can be seen that what is described in the application is a common double-sided coating device for lithium-ion battery pole pieces, which can simultaneously coat both sides of the lithium-ion battery pole piece through two upper and lower coating dies;

[0003] In actual use, the double-sided coating device for lithium-ion battery pole pieces in the above-mentioned patent will be designed with a tensioning roller on one side of the coating die head to maintain the tension during coating of the lithium-ion battery pole pieces. However, since most of these tensioning rollers are directly fixed to the substrate by bolts and other structures, the tensioning rollers cannot be adaptively adjusted according to the tension requirements during actual use, which reduces the overall flexibility of the double-sided coating device and has certain disadvantages. Therefore, the utility model needs to improve and optimize the existing double-sided coating device for lithium-ion battery pole pieces. Utility Model Content

[0004] The purpose of the utility model is to provide a double-sided coating device for a lithium-ion battery pole piece to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-sided coating device for lithium-ion battery pole pieces, comprising a substrate and a winding roller and a guide roller rotatably mounted on the front surface of the substrate, and the surface of the winding roller is wound with a lithium-ion battery pole piece, and the front surface of the substrate is also rotatably mounted with two coating dies, and the two coating dies are respectively located at the top and bottom of the lithium-ion battery pole piece, a slidable rear plate is mounted on the front surface of the substrate, and a tensioning roller is rotatably mounted on the front surface of the rear plate, and the tensioning roller is pressed on the top of the lithium-ion battery pole piece, a T-shaped slider is fixed on the rear surface of the rear plate, and a T-shaped slide groove corresponding to the T-shaped slider is opened on the front surface of the substrate, and the T-shaped slide groove slides to the top of the lithium-ion battery pole piece. In the T-shaped slide groove, a limiting structure is also arranged between the T-shaped slider and the base plate, and the limiting structure includes a rear card plate, a connecting rod, an inner groove, a spring and an inner slider, the inner groove is arranged inside the T-shaped slider, and the inner slider is movably installed in the inner groove by a spring, a connecting rod is fixed to the rear surface of the inner slider, a strip slide communicating with the T-shaped slide groove is arranged on the rear surface of the base plate, the rear end of the connecting rod passes through the strip slide to the rear surface of the base plate through the strip slide, and is connected to the rear card plate, limiting blocks are fixed to the two end surfaces of the rear card plate, and a plurality of limiting card grooves corresponding to the limiting card blocks are evenly arranged on the rear surface of the base plate relative to both sides of the strip slide, and the limiting card block is embedded in one of the limiting card grooves.

[0006] Preferably, one end of the spring abuts against the inner wall of the inner groove, and the other end of the spring abuts against the rear surface of the inner slide block.

[0007] Preferably, a rod hole communicating with the inner groove is formed on the rear surface of the T-shaped sliding block, and the rod hole corresponds to the connecting rod.

[0008] Preferably, a limiting ring is also installed on the front end surface of the tensioning roller, and the lithium-ion battery pole piece is located on the inner side of the limiting ring.

[0009] Preferably, a fixing structure is provided between the limiting ring and the tensioning roller, and the fixing structure comprises a fastening bolt and a threaded hole.

[0010] Preferably, two threaded holes are formed through the surface of the limiting ring, and the ends of the fastening bolts are screwed into the threaded holes and are in tight contact with the surface of the tensioning roller.

[0011] Preferably, a shaft is installed on the front surface of the rear plate, and the tensioning roller is rotatably sleeved on the shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model improves and optimizes the lithium-ion battery pole piece double-sided coating device in the prior art, and additionally designs a rear plate, a T-shaped slider, a T-shaped slide groove and a limiting structure, so that the height of the tensioning roller can be flexibly adjusted up and down according to different tensioning requirements, thereby greatly improving the adjustment convenience of the entire lithium-ion battery pole piece double-sided coating device, facilitating the operator to quickly adjust the tension of the tensioning roller when using the lithium-ion battery pole piece double-sided coating device, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0015] Figure 3 It is a side cross-sectional view of the connection between the tension roller and the base plate of the utility model;

[0016] Figure 4 It is a rear view of the rear card plate and the limit card slot of the utility model;

[0017] In the figure: 1, base plate; 11, T-shaped slide; 2, winding roller; 3, guide roller; 4, coating die head; 5, tensioning roller; 6, rear plate; 61, T-shaped slider; 7, limiting ring; 71, fastening bolt; 72, threaded hole; 81, rear clamping plate; 82, connecting rod; 83, strip slide; 84, inner groove; 85, spring; 86, inner slider; 87, limiting slot; 9, lithium-ion battery pole piece. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] See also Figures 1 to 4, is the first embodiment of the utility model, which provides a technical solution: a double-sided coating device for lithium-ion battery pole pieces, comprising a substrate 1 and a winding roller 2 and a guide roller 3 rotatably mounted on the front surface of the substrate 1, and the surface of the winding roller 2 is wound with a lithium-ion battery pole piece 9, and two coating dies 4 are also rotatably mounted on the front surface of the substrate 1, and the two coating dies 4 are respectively located at the top and bottom of the lithium-ion battery pole piece 9, and motors are installed at the rear surface of the substrate 1 relative to the rear ends of the winding roller 2, the guide roller 3 and the coating die 4, and the output ends of these motors are respectively connected to the winding roller 2, the guide roller 3 and the coating die 4, so that after these motors are started, the winding roller 2, the guide roller 3 and the coating die 4 can operate normally, thereby achieving lithium-ion The winding, conveying and roller-brush coating of the sub-battery pole piece 9, the front surface of the substrate 1 is installed with a slidable rear plate 6, and the front surface of the rear plate 6 is rotatably installed with a tensioning roller 5, the tensioning roller 5 is pressed on the top of the lithium-ion battery pole piece 9, the rear surface of the rear plate 6 is fixed with a T-shaped slider 61, the front surface of the substrate 1 is provided with a T-shaped slide groove 11 corresponding to the T-shaped slider 61, the T-shaped slider 61 is slidably located in the T-shaped slide groove 11, and a limiting structure is also arranged between the T-shaped slider 61 and the substrate 1, the limiting structure includes a rear card plate 81, a connecting rod 82, an inner groove 84, a spring 85 and an inner slider 86, the inner groove 84 is arranged inside the T-shaped slider 61, the inner slider 86 is movably installed in the inner groove 84 by a spring 85, and the rear surface of the inner slider 86 is fixed There is a connecting rod 82, and a strip slide 83 communicating with the T-shaped slide groove 11 is provided on the rear surface of the base plate 1. The rear end of the connecting rod 82 passes through the strip slide 83 to the rear surface of the base plate 1 and is connected to a rear card plate 81. The two end surfaces of the rear card plate 81 are welded and fixed with limiting blocks (not shown in the figure). The rear surface of the base plate 1 is evenly provided with a plurality of limiting card grooves 87 corresponding to the limiting blocks on both sides of the strip slide 83. The limiting card block is embedded in one of the limiting card grooves 87 to achieve the limitation of the rear card plate 81 and the T-shaped slider 61 during daily use, thereby achieving the limitation of the rear plate 6 and the tensioning roller 5. When it is necessary to adjust the height of the tensioning roller 5 to change the tension of the tensioning roller 5 on the lithium-ion battery pole piece 9 later, it is only necessary to The rear card plate 81 is pulled backward so that the connecting rod 82 pulls the inner slider 86 and the spring 85 is gradually compressed until the limit block at the end of the rear card plate 81 moves out of the limit slot 87 to release the limit on the rear card plate 81 and the T-shaped slider 61. At this time, the rear plate 6 can be slid up and down so that the T-shaped slider 61 slides in the T-shaped slot 11 to change the height of the tensioning roller 5. When the tensioning roller 5 is adjusted to a suitable height, it is only necessary to loosen the rear card plate 81 so that the spring 85 pushes the inner slider 86 back to reset it and the connecting rod 82 pulls the rear card plate 81 back, and finally the limit block is inserted into the limit slot 87 at other positions, and the T-shaped slider 61 and the tensioning roller 5 can be limited again, so as to achieve the re-limitation after the height adjustment of the tensioning roller 5.

[0021] One end of the spring 85 abuts against the inner wall of the inner groove 84 , and the other end of the spring 85 abuts against the rear surface of the inner slider 86 , thereby ensuring the installation stability of the spring 85 .

[0022] The rear surface of the T-shaped slider 61 is provided with a rod hole communicating with the inner groove 84 , and the rod hole corresponds to the connecting rod 82 , so that the connecting rod 82 can pass through smoothly.

[0023] Among them, a shaft rod is installed on the front surface of the rear plate 6, and the tensioning roller 5 is rotatably sleeved on the shaft rod, so that the tensioning roller 5 can be smoothly rotated and installed.

[0024] Example 2

[0025] See also Figures 1 to 4 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the limiting ring 7 can be provided to limit the lithium-ion battery pole piece 9 passing through the surface of the tensioning roller 5, thereby preventing the lithium-ion battery pole piece 9 from being offset.

[0026] Specifically, a limiting ring 7 is also installed on the front end surface of the tensioning roller 5, and the lithium-ion battery pole piece 9 is on the inner side of the limiting ring 7. A fixing structure is arranged between the limiting ring 7 and the tensioning roller 5, and the fixing structure includes a fastening bolt 71 and a threaded hole 72. Two threaded holes 72 are formed through the surface of the limiting ring 7. The end of the fastening bolt 71 is screwed into the threaded hole 72 and is in tight contact with the surface of the tensioning roller 5 to achieve stable limiting of the limiting ring 7. Subsequently, the fastening bolt 71 only needs to be loosened by rotating it counterclockwise to adjust the position of the limiting ring 7 on the surface of the tensioning roller 5. After adjusting to the appropriate position, the fastening bolt 71 is tightened clockwise again to fix the limiting ring 7 again.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-sided coating device for a lithium-ion battery pole piece, comprising a substrate (1) and a winding roller (2) and a guide roller (3) rotatably mounted on the front surface of the substrate (1), wherein a lithium-ion battery pole piece (9) is wound around the surface of the winding roller (2), and two coating dies (4) are rotatably mounted on the front surface of the substrate (1), and the two coating dies (4) are respectively located at the top and bottom of the lithium-ion battery pole piece (9), characterized in that: A slidable rear plate (6) is mounted on the front surface of the substrate (1), and a tension roller (5) is rotatably mounted on the front surface of the rear plate (6), the tension roller (5) is pressed on the top of the lithium-ion battery pole piece (9), a T-shaped slider (61) is fixed on the rear surface of the rear plate (6), a T-shaped slide groove (11) corresponding to the T-shaped slide groove (61) is provided on the front surface of the substrate (1), the T-shaped slide groove (61) is slidably located in the T-shaped slide groove (11), and a limiting structure is also provided between the T-shaped slide groove (61) and the substrate (1).

2. A lithium-ion battery pole piece double-sided coating device according to claim 1, characterized in that: The limiting structure comprises a rear card plate (81), a connecting rod (82), an inner groove (84), a spring (85) and an inner slide block (86); the inner groove (84) is arranged inside the T-shaped slide block (61); the inner slide block (86) is movably installed in the inner groove (84) by means of a spring (85); a connecting rod (82) is fixed to the rear surface of the inner slide block (86); a strip slideway (83) communicating with the T-shaped slideway (11) is arranged on the rear surface of the base plate (1); a rear end of the connecting rod (82) passes through the strip slideway (83) to the rear surface of the base plate (1) and is connected to the rear card plate (81); limiting card blocks are fixed to both end surfaces of the rear card plate (81); a plurality of limiting card grooves (87) corresponding to the limiting card blocks are evenly arranged on the rear surface of the base plate (1) relative to both sides of the strip slideway (83); the limiting card block is embedded in one of the limiting card grooves (87).

3. A double-sided coating device for lithium-ion battery pole pieces according to claim 2, characterized in that: One end of the spring (85) abuts against the inner wall of the inner groove (84), and the other end of the spring (85) abuts against the rear surface of the inner slide block (86).

4. A double-sided coating device for lithium-ion battery pole pieces according to claim 2, characterized in that: The rear surface of the T-shaped sliding block (61) is provided with a rod hole communicating with the inner groove (84), and the rod hole corresponds to the connecting rod (82).

5. A lithium-ion battery pole piece double-sided coating device according to claim 1, characterized in that: A limiting ring (7) is also installed on the front end surface of the tensioning roller (5), and the lithium-ion battery pole piece (9) is located inside the limiting ring (7).

6. A lithium-ion battery pole piece double-sided coating device according to claim 5, characterized in that: A fixing structure is provided between the limiting ring (7) and the tensioning roller (5), and the fixing structure comprises a fastening bolt (71) and a threaded hole (72).

7. A lithium-ion battery pole piece double-sided coating device according to claim 6, characterized in that: Two threaded holes (72) are formed through the surface of the limiting ring (7), and the ends of the fastening bolts (71) are screwed into the threaded holes (72) and are in tight contact with the surface of the tensioning roller (5).

8. A lithium-ion battery pole piece double-sided coating device according to claim 1, characterized in that: A shaft rod is installed on the front surface of the rear plate (6), and the tensioning roller (5) is rotatably sleeved on the shaft rod.

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