Guide roller combined hanger device for cleaning lithium battery diaphragm

Abstract

The invention discloses a guide roller combined hanger device for cleaning a lithium battery diaphragm, and belongs to the technical field of cleaning of lithium battery diaphragms and reverse osmosis membranes. Comprising a guide roller frame which is located in a water tank and does not make contact with the water tank, a plurality of guide rollers are evenly and rotationally arranged on the upper side and the lower side of the guide roller frame and detachably connected with the guide roller frame, and the upper end of the guide roller frame is fixedly connected with a rack located above the water tank. Due to the design of the guide roller combined hanger device, the installation and the work of the guide roller are not influenced by the water tank any more, the processing cost and the subsequent maintenance cost are reduced for the whole production process of a diaphragm, the working precision is ensured, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical fields of lithium battery diaphragms and reverse osmosis membrane cleaning, and specifically to a guide roller combined hanging rack device for cleaning lithium battery diaphragms. Background Art

[0002] Lithium battery diaphragms also belong to reverse osmosis membranes. The main function of the diaphragm in battery materials is to isolate the positive and negative electrodes to prevent problems such as self-discharge and short-circuit of the battery. The main material used is a porous polymer membrane, including polyethylene (PE) or polypropylene (PP), so it is also called polyethylene film or PE film. With the gradual popularization of new energy vehicles, the future demand for power lithium battery materials will continue to grow. A lithium battery consists of positive and negative electrodes, an electrolyte, and a polymer separator membrane. The diaphragm is a high-value-added material with the highest technical barrier in lithium battery materials, and the gross profit margin usually reaches more than 70%, accounting for 20 - 30% of the cost of lithium batteries. Calculated as such, a single vehicle can use one thousand to two thousand square meters of diaphragms.

[0003] In the production and processing of diaphragms, the diaphragms need to be cleaned through multiple water tanks. Due to the long length of the diaphragms, guide rollers need to be fixed in the water tanks to support the diaphragms. The traditional installation method of the guide rollers is to directly fix the guide roller bearing seats on the inner walls of the water tanks to install the guide rollers. This method has the following disadvantages: High manufacturing cost and difficult to guarantee precision. Since the guide roller bearing seats are fixed on the two sides of the water tank, the rigidity requirements for the water tank are very high. As a result, the water tank uses more materials, has high welding and manufacturing difficulties, and high processing costs. And during the working process, it is very easy for the parallelism precision between the guide rollers to change due to factors such as the rigidity of the water tank itself, the temperature, and the water volume, thus affecting the working precision and further affecting the diaphragm processing quality. Difficult to install the guide rollers because the guide roller bearing seats are directly connected to the water tank. First, it is very difficult to ensure the parallelism between the guide rollers in a single water tank. Second, it is very difficult to ensure the position precision between the water tanks and the parallelism of all the guide rollers inside, so it is easy to cause the film path to deviate and unable to work properly. Difficult to repair and maintain. When disassembling the guide rollers or replacing the bearings, due to the low repeat positioning precision, a large amount of manpower and time are required to adjust the position precision and parallelism between the guide rollers.

[0004] Therefore, we designed a hanging rack independent of the water tank to install the guide rollers located inside the water tank, solving the problems of the traditional water tank in terms of precision, installation difficulty, and manufacturing cost. The installation and maintenance of the guide rollers are no longer affected by the water tank, greatly reducing the cost and improving the work efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a guide roller combined hanging rack device for cleaning a lithium battery separator, so as to solve the problems put forward in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A guide roller combined hanging rack device for cleaning a lithium battery separator includes a guide roller frame located in a water tank and not in contact with the water tank. A plurality of guide rollers are evenly rotatably arranged on the upper and lower sides of the guide roller frame. The guide rollers are detachably connected to the guide roller frame, and the upper end of the guide roller frame is fixedly connected to a frame located above the water tank.

[0007] As a further preferred solution of the present invention: The guide roller frame includes two corresponding rectangular frames, and a plurality of positioning support rods are fixedly arranged between the two rectangular frames.

[0008] As a further preferred solution of the present invention: Ceramic bearings are arranged at the ends of the guide rollers. Bearing mounting holes corresponding to the ceramic bearings are opened on the rectangular frames, and the ceramic bearings are installed in the bearing mounting holes. A bearing gland for fixing the ceramic bearings is arranged at the upper end of the bearing mounting holes.

[0009] As a further preferred solution of the present invention: The rectangular frame is composed of two vertical fixing plates and two horizontal fixing plates. Positioning support rods are arranged on both the vertical fixing plates and the horizontal fixing plates, and the bearing mounting holes are opened at the upper ends of the horizontal fixing plates.

[0010] As a further preferred solution of the present invention: The upper ends of the vertical fixing plates are fixedly connected to L-shaped upper connecting plates, and the upper connecting plates are fixedly connected to the frame.

[0011] As a further preferred solution of the present invention: The length of the vertical fixing plate is adjustable.

[0012] As a further preferred solution of the present invention: Corresponding insertion plates and U-shaped plates are arranged at the centers of the vertical fixing plates. The insertion plates are inserted into the U-shaped plates and fixedly connected to the U-shaped plates through multiple groups of bolts.

[0013] As a further preferred solution of the present invention: Multiple groups of adjustment screw holes are arranged at the upper ends of the vertical fixing plates for adjusting the installation position of the upper connecting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The guide roller combined hanging rack device has a frame structure. First, it has good rigidity and high strength and is not easily deformed. Second, the parts are guaranteed by precision machining and special processes. After combination, the mutual position accuracy of each bearing position is high, the installation is extremely convenient, and the accuracy is high, without the need for separate adjustment; 2. The hanging rack is not in contact with the water tank, and the working accuracy of the guide rollers will not be affected by the deformation of the water tank caused by factors such as its own rigidity, the amount of water, and the temperature, which affects the installation accuracy and working accuracy of the guide rollers; 3. Low manufacturing cost and convenient installation. First, the water tank does not require high rigidity and precision, which greatly saves material costs and manufacturing costs. Second, the guide roller hanging brackets of each water tank can be fully installed and the precision adjusted before installing the water tank. Finally, just place the water tank in place, without worrying about the changes in the position precision and parallelism of the guide rollers caused by the position precision and deformation of the water tank. It has low cost, high efficiency, and is convenient for after-sales maintenance and repair.

[0015] In summary, the design of the guide roller combined hanging bracket device makes the installation and operation of the guide rollers no longer affected by the water tank, reduces the processing cost and subsequent maintenance cost for the entire production process of the diaphragm, ensures the working precision, and greatly improves the working efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the guide roller combined hanging bracket device for cleaning the lithium battery diaphragm of the present invention; Figure 2 is Figure 1 an enlarged schematic structural diagram of the bearing installation hole in Figure 3 is a schematic structural diagram when multiple guide roller combined hanging bracket devices are applied in cooperation with the diaphragm film; Figure 4 It is a schematic working state diagram of the guide roller combined hanging bracket device for cleaning the lithium battery diaphragm of the present invention; Figure 5 is a schematic side view structural diagram of the guide roller combined hanging bracket device of Embodiment 2.

[0017] In the figure: 1. Guide roller frame; 2. Vertical fixing plate; 3. Horizontal fixing plate; 4. Positioning support rod; 5. Guide roller; 6. Bearing gland; 7. Upper connecting plate; 8. Frame; 9. Adjusting position screw hole; 10. Bearing installation hole; 11. Ceramic bearing; 12. Insertion plate; 13. U-shaped plate; 14. Film; 15. Water tank. Embodiment

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Example

[0019] Please refer to Figures 1-4, this embodiment provides a guide roller combination hanging rack device for cleaning lithium battery diaphragms, including a guide roller frame 1 located in the water tank 15 and not in contact with the water tank 15. A plurality of guide rollers 5 are evenly rotatably arranged on the upper and lower sides of the guide roller frame 1. The guide rollers 5 are detachably connected to the guide roller frame 1, and the upper end of the guide roller frame 1 is fixedly connected to a frame 8 located above the water tank 15. Specifically, the guide roller frame 1 includes two corresponding rectangular frames, and a plurality of positioning support rods 4 are fixedly arranged between the two rectangular frames. The rectangular frame is composed of two vertical fixing plates 2 and two horizontal fixing plates 3, and the positioning support rods 4 are arranged on both the vertical fixing plates 2 and the horizontal fixing plates 3. A ceramic bearing 11 is arranged at the end of the guide roller 5, and a bearing mounting hole 10 corresponding to the ceramic bearing 11 is opened on the rectangular frame. Specifically, as Figure 2 shown, the bearing mounting hole 10 is opened at the upper end of the horizontal fixing plate 3, and the ceramic bearing 11 is installed in the bearing mounting hole 10. A bearing gland 6 for fixing the ceramic bearing 11 is arranged at the upper end of the bearing mounting hole 10.

[0020] To realize the connection between the guide roller frame 1 and the frame 8, the upper end of the vertical fixing plate 2 is fixedly connected to an L-shaped upper connecting plate 7, and the upper connecting plate 7 is fixedly connected to the frame 8. To facilitate the adjustment of the accuracy during assembly, a plurality of groups of position adjustment screw holes 9 are arranged at the upper end of the vertical fixing plate 2 for adjusting the connection position between the upper connecting plate 7 and the vertical fixing plate 2 to improve flexibility.

[0021] To enable those skilled in the art to better understand this application, the actual application principle of this guide roller combination hanging rack device will be elaborated below: As Figure 3 and Figure 4 shown, in actual application, multiple guide roller frames 1 need to be arranged and installed on the frame 8. It should be noted that in actual application, both the front and rear sides of the guide roller frame 1 are fixed on the frame 8. After the guide roller frame 1 is installed in place, the water tank 15 can be placed on the lifting platform, and the water tank 15 can be lifted by the lifting platform to the Figure 4 position shown in the figure to cover the guide roller frame 1. Then, water is introduced into the water tank, and the diaphragm 14 is passed through each guide roller 5 in turn to perform the diaphragm cleaning work; When subsequent maintenance of the guide roller 5 is required, the water tank 15 is lowered by the lifting platform, and the bearing gland 6 on the horizontal fixing plate 3 is removed, so that the disassembly and assembly of the guide roller 5 can be easily realized, and the replacement is convenient. Embodiment

[0022] Refer to Figure 5As shown in the figure, on the basis of Embodiment 1, in order to further improve the flexibility and applicability of the guide roller combination hanger device, and to better adapt to water tanks 15 with different depths, the length of the vertical fixing plate 2 is designed to be adjustable, that is, the vertical fixing plate 2 can be telescopically adjusted according to requirements. The telescopic structure is a conventional structure familiar to those skilled in the art. In this embodiment, a conventional design is adopted. A corresponding insertion plate 12 and a U-shaped plate 13 are provided at the center of the vertical fixing plate 2, so that the vertical fixing plate 2 is designed in a segmented manner up and down. During assembly, the insertion plate 12 is inserted into the U-shaped plate 13 and fixedly connected to the U-shaped plate 13 through multiple groups of bolts to realize the connection of the upper and lower sections of the vertical fixing plate 2. When it is necessary to adapt to water tanks 15 with different depths, only the length of the insertion plate 12 in the U-shaped plate 13 needs to be readjusted.

[0023] It should be noted that the above embodiments only specifically and clearly describe the technical solutions and technical features of the present application. For those skilled in the art, the solutions or features that belong to the prior art or common general knowledge are not described in detail in the above embodiments.

[0024] In addition, the technical solutions of the present application are not limited to the above embodiments. Those skilled in the art should take the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A guide roller combined hanging rack device for cleaning a lithium battery separator, characterized in that, It includes a guide roller frame (1) located inside the water tank (15) and not in contact with the water tank (15). A plurality of guide rollers (5) are evenly rotatably arranged on the upper and lower sides of the guide roller frame (1). The guide rollers (5) are detachably connected to the guide roller frame (1). The upper end of the guide roller frame (1) is fixedly connected to a frame (8) located above the water tank (15).

2. The guide roller combination hanging rack device for cleaning a lithium battery separator according to claim 1, characterized in that, The guide roller frame (1) includes two corresponding rectangular frames, and a plurality of positioning support rods (4) are fixedly arranged between the two rectangular frames.

3. The guide roller combination hanging rack device for cleaning the lithium battery separator according to claim 2, characterized in that, Ceramic bearings (11) are arranged at the ends of the guide rollers (5). Bearing mounting holes (10) corresponding to the ceramic bearings (11) are formed in the rectangular frames. The ceramic bearings (11) are installed in the bearing mounting holes (10), and bearing caps (6) for fixing the ceramic bearings (11) are arranged at the upper ends of the bearing mounting holes (10).

4. The guide roller combination hanging rack device for cleaning the lithium battery separator according to claim 3, characterized in that, The rectangular frame is composed of two vertical fixing plates (2) and two horizontal fixing plates (3). Positioning support rods (4) are arranged on both the vertical fixing plates (2) and the horizontal fixing plates (3). The bearing mounting holes (10) are formed at the upper ends of the horizontal fixing plates (3).

5. The guide roller combination hanging rack device for cleaning the lithium battery separator according to claim 4, wherein The upper ends of the vertical fixing plates (2) are fixedly connected to L-shaped upper connecting plates (7), and the upper connecting plates (7) are fixedly connected to the frame (8).

6. The guide roller combination hanging rack device for cleaning the lithium battery separator according to claim 4, characterized in that The length of the vertical fixing plate (2) is adjustable.

7. The guide roller combination hanger device for cleaning the lithium battery separator according to claim 6, characterized in that, Corresponding insertion plates (12) and U-shaped plates (13) are arranged at the centers of the vertical fixing plates (2). The insertion plates (12) are inserted into the U-shaped plates (13) and fixedly connected to the U-shaped plates (13) through multiple groups of bolts.

8. The guide roller combination hanger device for cleaning the lithium battery separator according to claim 5, characterized in that Multiple groups of position adjustment screw holes (9) are arranged at the upper ends of the vertical fixing plates (2) for adjusting the installation positions of the upper connecting plates (7).

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