Box air nozzle baffle adjusting device and coating box

Abstract

The utility model belongs to the technical field of coating, and particularly relates to a box body tuyere baffle adjusting device and a coating box body, and the device comprises at least one air duct baffle located at a box body tuyere; the at least one air duct control mechanism is used for driving the corresponding air duct baffle to be opened, namely the corresponding distance is moved, so that the box body air nozzle is exposed, and an air outlet duct is formed; the multiple baffles are arranged to shield the air outlet of the drying oven, the corresponding adjusting mechanism is adopted for each baffle to control movement of the baffles so as to control whether air flows out of the air outlet or not, the central part of the pole piece is dried preferentially, then the edge of the pole piece is dried, and the phenomenon that the edge thinning area of the pole piece is dried firstly and consequently cracks are caused is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating, and particularly relates to a box air nozzle baffle adjusting device and a box body for coating. Background Art

[0002] The coating process is a process of coating a mixed slurry on a current collector or a film-like substrate. In the lithium battery field, the quality of the coating process directly determines the consistency of the electrode sheet. Therefore, the stability of the coating process is particularly important. The temperature and air frequency of the coating oven are extremely important for drying the electrode sheet. However, during normal production, there is a phenomenon that the areal density of the edge thinning area of the electrode sheet is low. Since the air outlet of the oven air nozzle is constant, the edge of the electrode sheet dries first, and the middle film area is in a slightly wet state. In the prior art, to solve this problem, Teflon is manually pasted to block the air nozzles of the oven facing the edge of the electrode sheet, so that the middle film area is dried first, and then the Teflon is removed to dry the whole electrode sheet. However, after long-term use, the Teflon will become dry and needs to be frequently replaced. Otherwise, the Teflon will fall onto the electrode sheet and cause the tape to break.

[0003] Therefore, it is necessary to design a box air nozzle baffle adjusting device and a box body for coating to solve the technical problem of manually and frequently replacing Teflon in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a box air nozzle baffle adjusting device and a box body for coating to solve the above technical problems.

[0005] To solve the above technical problems, the utility model provides a box air nozzle baffle adjusting device, including: at least one air duct baffle located at the box air nozzle; and

[0006] At least one air duct control mechanism for driving the corresponding air duct baffle to open, that is, move a corresponding distance to expose the box air nozzle and form an air outlet duct.

[0007] Further, the number of the air duct baffles is two or more; and

[0008] The box air nozzle baffle adjusting device further includes:

[0009] A control module, and

[0010] A detection sensor for detecting the drying degree of the electrode sheet; wherein

[0011] The control module is electrically connected to the detection sensor and controls the air duct control mechanism to open the corresponding air duct baffle according to the drying degree.

[0012] Further, the air duct baffle is L-shaped, with its long side as the air nozzle shielding part and its short side provided with a threaded hole;

[0013] The air duct control mechanism includes:

[0014] A screw rod meshed with the threaded hole, and

[0015] A motor controlled by a control module; wherein

[0016] One end of the screw rod extends into the box body and is driven by the motor, so that when the screw rod rotates, it drives the air nozzle shielding part to open.

[0017] Furthermore, the air duct baffle is L-shaped, its long side part serves as the air nozzle shielding part, and its short side part is provided with a threaded hole;

[0018] The air duct control mechanism includes:

[0019] A push rod, and

[0020] A cylinder controlled by a control module; wherein

[0021] One end of the push rod extends into the box body and is driven by an actuator, so that when the push rod extends, it drives the air nozzle shielding part to open.

[0022] Furthermore, the actuator is a hydraulic cylinder or a pneumatic cylinder.

[0023] Furthermore, the short side part is provided with a guiding hole;

[0024] A guiding rod is arranged on the box body wall, and the guiding rod passes through the guiding hole, so that when the air nozzle shielding part opens, the short side part moves along the extending direction of the guiding rod.

[0025] Furthermore, the box body air nozzle includes a plurality of air outlets arranged in an array.

[0026] Furthermore, there are three air duct baffles, and each of them shields the air outlets in the corresponding area.

[0027] Furthermore, there are three air duct baffles, and they shield the air outlets in the corresponding area in a staggered manner.

[0028] On the other hand, the present utility model also provides a coating box body, including:

[0029] A heater arranged inside the box body; and

[0030] The air nozzle baffle automatic adjustment device as described above

[0031] The beneficial effect of the present utility model is that by providing a plurality of baffles to shield the air outlets of the oven, and adopting corresponding adjustment mechanisms for each baffle to control the movement of the baffle, so as to control whether the air outlets blow air or not, it realizes drying the central part of the electrode plate first, and then drying the edge of the electrode plate, avoiding cracking caused by the premature drying of the edge thinning area of the electrode plate.

[0032] Other features and advantages of the present utility model will be described in the subsequent description, and in part, will be obvious from the description, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the description and the drawings.

[0033] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0034] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 is a perspective view of the present utility model;

[0036] Figure 2 is a schematic perspective view of the second perspective structure of the present utility model;

[0037] Figure 3 is a schematic sectional view of the present utility model.

[0038] In the figure:

[0039] 1, box body; 10, air outlet;

[0040] 2, air duct control mechanism; 20, baffle; 21, guide rod; 22, screw; 23, motor. Specific Embodiments

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0042] In the prior art, to address this problem, manual application of Teflon is used to block the air nozzles at the edges of the oven facing the electrode tabs, enabling the middle film area to be dried first, and then the Teflon is removed to dry the entire electrode tab. However, after long-term use, the Teflon will become dry and need to be frequently replaced. Otherwise, the Teflon will fall onto the electrode tab, resulting in tape breakage.

[0043] To solve the above technical problems, in at least one embodiment, a box air nozzle baffle adjusting device is provided, including: at least one air duct baffle located at the box air nozzle; and at least one air duct control mechanism for driving the corresponding air duct baffle to open, that is, move a corresponding distance to expose the box air nozzle and form an air outlet duct.

[0044] A plurality of baffles 20 are provided to block the air outlet 10 of the box 1, and a corresponding air duct control mechanism 2 is adopted for each baffle 20 to control the movement of the baffle 20, so as to control whether the air outlet 10 discharges air, giving priority to drying the central part of the electrode sheet, and then drying the edge of the electrode sheet, to avoid cracking caused by the premature drying of the edge thinning area of the electrode sheet.

[0045] In some embodiments, the produced electrode sheets are placed on a conveying device and moved to the lower part of the box 1. The initial state of each baffle 20 is to block all the air outlets 10. As Figure 1 shown, the number of baffles 20 is preferably three, and the areas of the air outlets 10 blocked by each baffle 20 are divided into three parts: left, middle, and right, corresponding to the left, middle, and right parts of the electrode sheet respectively. When starting to dry the electrode sheet, the control module first controls the motor 23 in the central air duct control mechanism 2 to start. The output end of the motor 23 drives the screw rod 22 to rotate. The screw rod 22 is threadedly engaged with the short side part of the L-shaped baffle 20, and a corresponding guide rod 21 is fixed on the outer wall of the box 1, so that the central baffle 20 moves along the axis direction of the screw rod 22, and then the air outlets 10 in the central area form an air outlet duct to dry the central area of the electrode sheet.

[0046] In some embodiments, the detection sensor always detects the drying degree of the left, middle, and right three regions of the electrode sheet. When it detects that the drying degree of the central region is the same as that of the left and right sides, the control module controls the motors 23 on the left and right sides to start, and moves the baffles 20 on the left and right sides away to dry the left and right regions of the electrode sheet.

[0047] As another embodiment, an actuator can be arranged in the box 1, and a push rod is arranged at the output end of the actuator. The push rod is connected to the short side part of the baffle 20. The actuator can be preferably a cylinder or a hydraulic cylinder to realize driving the movement of the baffle 20.

[0048] As another embodiment, each baffle 20 can be arranged along the axis direction of the box 1 to block all the air nozzles, or can be arranged in a staggered manner to block all the air nozzles.

[0049] In summary, by providing a number of baffles 20 to block the air outlet 10 of the box body 1, and adopting a corresponding air duct control mechanism 2 for each baffle 20 to control the movement of the baffle 20, so as to control whether air blows out from the air outlet 10, it is realized that the central part of the pole piece is dried first, and then the edge of the pole piece is dried, avoiding cracking caused by the edge thinning area of the pole piece drying first.

[0050] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical, or other form.

[0053] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0054] In addition, in each embodiment of the present utility model, each functional unit may be integrated into a processing unit, may exist physically alone for each unit, or two or more units may be integrated into one unit.

[0055] Inspired by the above ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A box air nozzle baffle adjustment device, characterized in that: include: At least one air duct baffle located at the air nozzle of the box; and At least one air duct control mechanism is used to drive the corresponding air duct baffle to open, that is, to move a corresponding distance to expose the box air nozzle to form an air outlet duct.

2. The box air nozzle baffle adjustment device according to claim 1, characterized in that: There are two or more air duct baffles; and The box air nozzle baffle adjustment device also includes: control module, and A detection sensor for detecting the dryness of the electrode; wherein The control module is electrically connected to the detection sensor, and controls the air duct control mechanism to open the corresponding air duct baffle according to the degree of dryness.

3. The box air nozzle baffle adjustment device according to claim 2, characterized in that: The air duct baffle is L-shaped, with its long side serving as an air nozzle shielding portion and its short side being provided with a threaded hole; The air duct control mechanism comprises: a threaded rod that engages with a threaded hole, and a motor controlled by a control module; wherein One end of the screw rod is inserted deep into the box body and is driven by a motor, so that when the screw rod rotates, the air nozzle shielding part is driven to open.

4. The box air nozzle baffle adjustment device according to claim 2, characterized in that: The air duct baffle is L-shaped, with its long side serving as an air nozzle shielding portion and its short side being provided with a threaded hole; The air duct control mechanism comprises: putter, and an actuator controlled by a control module; wherein One end of the push rod is inserted deep into the box body and is driven by the actuator, so that when the push rod is extended, the air nozzle shielding part is driven to open.

5. The box air nozzle baffle adjustment device according to claim 4, characterized in that: The actuator is a hydraulic cylinder or a pneumatic cylinder.

6. The box air nozzle baffle adjustment device according to any one of claims 3 to 5, characterized in that: The short side is provided with a guide hole; A guide rod is arranged on the wall of the box body, and a guide hole is passed through the guide rod, so that when the air nozzle shielding part is opened, the short side part moves along the extending direction of the guide rod.

7. The box air nozzle baffle adjustment device according to claim 1, characterized in that: The box air nozzle includes a plurality of air outlets arranged in an array.

8. The box air nozzle baffle adjustment device according to claim 7, characterized in that: There are three air duct baffles, which respectively block the air outlets of corresponding areas.

9. The box air nozzle baffle adjustment device according to claim 7, characterized in that: There are three air duct baffles, which are staggered to block the air outlets in corresponding areas.

10. A coating box, characterized in that: include a heater disposed inside the housing; and An automatic adjustment device for the air nozzle baffle as described in any one of claims 1 to 9 is used.

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