Pole piece baking equipment

Abstract

The utility model discloses pole piece baking equipment. The pole piece baking equipment comprises a box body with a drying cavity, a roller passing assembly and a heating body, wherein the roller passing assembly and the heating body are arranged in the drying cavity; the passing roller assembly comprises a plurality of passing rollers which are longitudinally distributed in a crossed mode, the heating body is located at the top and / or the bottom of the passing roller assembly, and the dried pole pieces are wound and tensioned between the passing rollers in an up-down crossed mode and are dried by the heating body in the conveying process. According to the pole piece baking equipment, the plurality of passing rollers which are distributed up and down are arranged in the drying cavity of the box body, pole pieces are unfolded and tensioned in a small space, meanwhile, the heating plates are arranged on the two sides of the passing rollers, the air supply port is formed in one side of each passing roller, and the air outlet is formed in the other side of each passing roller, so that air circulates in the drying cavity after being heated; therefore, the drying time is shortened, the drying efficiency is improved, the pole piece drying equipment can quickly and efficiently achieve drying treatment of the rolled pole piece incoming materials, and the hot pressing time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece processing equipment, in particular to a pole piece baking equipment. Background Art

[0002] In automated battery processing equipment, the lamination of battery electrodes is required, and the drying of the electrodes can affect the quality of the finished battery. Therefore, after production, the electrodes must be dried before being coiled. However, even after drying, the electrodes can still become damp and retain moisture when they are subsequently stacked. Therefore, a drying device is needed that can quickly and efficiently dry coiled electrodes before lamination. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a pole piece baking device to solve the technical problem of rapid drying of the existing pole pieces before lamination.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides an electrode baking device, which includes a box body with a drying chamber, a roller assembly and a heating element arranged in the drying chamber; the roller assembly includes a plurality of rollers distributed longitudinally and crosswise, and the heating element is located at the top and / or bottom of the roller assembly. The electrode to be dried is cross-wound and tensioned between the rollers, and is dried by the heating element during the conveying process.

[0006] Among them, the box body is also provided with an air inlet and an air outlet, and the air inlet and the air outlet are both strip openings extending parallel to the forward direction of the pole piece, and the strip openings are both located on the outside of the roller assembly. The air inlet is also connected to an air supply unit, and the air outlet is also provided with an air extraction unit.

[0007] Wherein, the air inlet and the air outlet are both opened at the top of the box body, and the air inlet and the air outlet are both connected to the drying chamber.

[0008] The roller assembly includes a support frame and the rollers connected to the support frame. The rollers are divided into an upper roller group close to the top of the drying chamber and a lower roller group close to the bottom of the drying chamber.

[0009] Among them, the support frame includes: two parallel distributed bottom plates, two parallel distributed top plates, and vertical plates that connect and support the corresponding top plates and bottom plates from the ends, the top plates are located above the bottom plates, the upper roller group is rotatably connected between the two top plates, and the lower roller group is rotatably connected between the two bottom plates.

[0010] Wherein, the heating body is a heating plate, which is respectively arranged on the top and / or bottom of the roller assembly. The heating plate is also arranged on the front and rear sides of both ends of the roller of the roller assembly in the length direction.

[0011] Wherein, a plurality of ventilation holes are also provided on the back plate of the box body.

[0012] Wherein, a plurality of temperature sensors are further provided in the drying chamber, and the plurality of temperature sensors are distributed at different positions in the drying chamber.

[0013] The front side wall of the box body is provided with an opening, and a visual door is provided at the opening. One side of the visual door is rotatably hinged to the box body, and the other opposite side is connected to the box body through a quick lock.

[0014] The electrode baking equipment further includes a material discharge assembly located in front of the material feed port of the box body, and a material receiving assembly arranged behind the material discharge port of the box body.

[0015] The electrode baking equipment of the present invention realizes the expansion and tensioning of the electrode in a smaller space by arranging a plurality of rollers distributed up and down in the drying chamber of the box body, and at the same time, heating plates are arranged on both sides of the rollers, an air supply port is arranged on one side of the rollers, and an air outlet is arranged on the other side, so that the gas is heated and circulated in the drying chamber, thereby reducing the drying time and improving the drying efficiency. The electrode drying equipment can quickly and efficiently realize the drying processing of the rolled electrode materials, which is conducive to reducing the hot pressing time.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side structural diagram of the electrode baking equipment according to an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the axonometric structure of the electrode baking equipment according to an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] Electrode baking equipment 100, electrode 200, box 1, feed port 11, discharge port 12, air inlet 13, air outlet 14, visual door 15, quick lock 16, vent 17, drying chamber 10, heating element 2, heating element 3, roller assembly 4, vertical plate 41, top plate 42, bottom plate 43, shaft connecting plate 421, shaft connecting plate 431, roller 5. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "resin", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can mean connected, detachably connected, or integrated; they can mean mechanically connected or electrically connected; they can mean directly connected or indirectly connected through an intermediate medium; they can mean internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0027] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, the schematic representations of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] See also Figures 1 to 2 This embodiment provides an electrode baking device 100, which includes a housing 1 having a drying chamber 10, a roller assembly 4 and a heating element 2 disposed within the drying chamber 10; the roller assembly 4 includes a plurality of rollers arranged in a longitudinally cross pattern, and the heating element 2 is located at the top and / or bottom of the roller assembly, so that the electrode 200 is wound and stretched between the rollers in a cross pattern, and is dried by the heating element 2 during the conveying process. In this embodiment, the plurality of rollers arranged in a longitudinally cross pattern within the drying chamber 10 are used to wind the electrode. The electrode is wound and stretched back and forth between the rollers in a cross pattern, so that a longer electrode can be placed within a smaller drying chamber 10, thereby increasing the volumetric ratio of the electrode within the drying chamber 10. Some of the rollers are located above the drying chamber 10, while others are located at the bottom of the drying chamber 10. The electrode 200 is stretched and stretched between the rollers in a back-and-forth pattern in an up-and-down direction.

[0029] Among them, the box body 1 is also provided with an air inlet 13 and an air outlet 14. The air inlet 13 and the air outlet 14 are both strip-shaped openings extending parallel to the forward direction of the electrode 200, and the strip-shaped openings are both located on the outside of the roller assembly 4. The air inlet 13 is also connected to an air supply unit (not shown in the figure, such as an air supply pump), and the air outlet 14 is also provided with an air extraction unit (not shown in the figure, such as an air extraction pump). The air supply unit and the air extraction unit are provided to increase the flow rate of the gas in the drying chamber 10 and simultaneously improve the discharge efficiency of the dried and evaporated water. In this embodiment, in order to reduce the resistance of the air flow between the upper and lower winding electrode pieces, the air inlet 13 and the air outlet 14 are respectively provided at both ends of the roller of the roller assembly 4 in the longitudinal direction. At this time, the air flow in the drying chamber 10 flows through the space formed between adjacent electrode pieces, thereby reducing the resistance to the air flow, increasing the air flow rate, and facilitating the discharge of water vapor. The air inlet 13 is a long strip opening such as a rectangular opening or an elliptical opening, and the length direction of the long strip opening is parallel to the forward movement direction of the pole piece 200, so that the air flow enters the inside of the pole piece from the side of the pole piece wrapped up and down for drying.

[0030] In this embodiment, the air inlet 13 and the air outlet 14 are both opened at the top of the box body 1, and the air inlet 13 and the air outlet 14 are both connected to the drying chamber 10. It is understood that in other embodiments, the air inlet 13 and the air outlet 14 can also be provided on other side walls of the box body 1, and can be located on the same side wall or distributed on different side walls.

[0031] like Figure 2 As shown, the roller assembly 4 includes: a support frame and the rollers 5 connected to the support frame. The rollers 5 are divided into an upper roller group close to the top of the drying chamber 10 and a lower roller group close to the bottom 10 of the drying chamber. All the rollers 5 are connected to the support frame in the same direction, that is, all the rollers 5 are arranged parallel to each other.

[0032] Specifically, the support frame includes: two parallel bottom plates 43, two parallel top plates 42, and a vertical plate 41 that connects and supports the corresponding top plates 42 and bottom plates 43 from the ends. The upper roller group is rotatably connected between the two top plates 42, and the lower roller group is rotatably connected between the two bottom plates 43. Among them, the top plate 42 is also provided with an axis connecting plate 421 corresponding to the number of rollers in the upper roller group. Similarly, the bottom plate 43 is also provided with an axis connecting plate 431 corresponding to the number of rollers in the lower roller group. The two ends of the roller 5 are respectively rotatably connected to the axis connecting plate 421 (431). The support frame is fixedly connected to the box body 1. In this embodiment, the upper roller group and the lower roller group are respectively arranged near the top and bottom of the drying chamber 10, thereby increasing the winding space of the middle pole piece and the flow space of the corresponding hot air flow, further improving the drying efficiency.

[0033] The heating element 2 is a heating plate, which is respectively arranged on the top and bottom of the roller assembly 4 .

[0034] In another embodiment, the heating plates are further disposed on the outer sides of both ends of the roller 5 in the length direction.

[0035] The box body 1 of this embodiment is a cubic box, therefore, the corresponding heating element 2 is arranged at the top of the roller assembly 4 , and the other heating element 3 is arranged at the bottom of the roller assembly 4 .

[0036] like Figure 1 As shown, a plurality of ventilation holes 17 are further provided on the back plate of the box body 1 .

[0037] Furthermore, in order to accurately control the drying temperature in the drying chamber 10 , a plurality of temperature sensors (not shown in the figure) are further provided in the drying chamber 10 , and the plurality of temperature sensors are distributed at different positions in the drying chamber 10 .

[0038] Please refer again Figure 1 The front side wall of the box body 1 is provided with an opening, and a visual door 15 is provided at the opening. One side of the visual door 15 is rotatably hinged to the box body 1, and the other opposite side is connected to the box body 1 through a quick lock 16, so as to facilitate the quick opening of the box body 1 to deal with internal abnormal situations.

[0039] The electrode baking equipment 100 further includes a material discharge assembly located in front of the material inlet 11 of the box body 1 , and a material receiving assembly located behind the material outlet 12 of the box body 1 .

[0040] The above-mentioned unloading assembly is used to output the rolled electrode material to the electrode drying equipment 100 at a uniform speed according to the conveying speed. After the electrode 200 is dried in the drying chamber 10, it is wound into a roll by the receiving assembly located at the rear, and the receiving assembly also provides traction for the movement of the electrode in the drying chamber 10.

[0041] In this embodiment, the air inlet 13 and the air outlet 14 are both designed as strip-shaped openings, so that the gas entering the drying chamber 10 from the outside enters in a planar shape. The planar gas is first preheated by the heating plate at the top and then flows downward, filling the entire drying chamber 10, and then discharged from the drying chamber 10 through the air outlet 14. At this time, the gas carries water vapor and other substances that affect the dryness of the electrode.

[0042] It can be understood that in this embodiment, two groups of longitudinally distributed rollers 5 are provided. In other embodiments, the above-mentioned rollers 5 can also be distributed in any other position, such as at unequal heights or unequal intervals. The pole pieces are wound in sequence to make them taut, and the surface of the pole pieces is unfolded to make them dried more quickly.

[0043] The electrode baking equipment of this embodiment arranges a plurality of rollers distributed up and down in the drying chamber of the box body to achieve the expansion and tensioning of the electrode in a smaller space, and at the same time arranges heating plates on both sides of the rollers, an air supply port is arranged on one side of the rollers, and an air outlet is arranged on the other side, so that the gas is heated and circulated in the drying chamber, thereby reducing the drying time and improving the drying efficiency. The electrode drying equipment can quickly and efficiently realize the drying processing of the rolled electrode materials, which is conducive to reducing the hot pressing time.

[0044] The above examples are merely used to further illustrate the technical content of the present invention for easier understanding by the reader. However, they do not limit the implementation of the present invention to these examples. Any technical extension or reinvention based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A pole piece baking device, characterized in that: It includes a box with a drying chamber, a roller assembly and a heating element arranged in the drying chamber; the roller assembly includes a plurality of rollers distributed longitudinally and crosswise, the heating element is located at the top and / or bottom of the roller assembly, and the pole pieces to be dried are cross-wound and tensioned between the rollers and are dried by the heating element during the conveying process.

2. The electrode baking equipment according to claim 1, characterized in that: The box body is also provided with an air inlet and an air outlet, and the air inlet and the air outlet are both strip-shaped openings extending parallel to the forward direction of the pole piece, and the strip-shaped openings are both located on the outside of the roller assembly. The air inlet is also connected to an air supply unit, and the air outlet is also provided with an air extraction unit.

3. The electrode baking equipment according to claim 2, characterized in that: The air inlet and the air outlet are both opened at the top of the box body, and the air inlet and the air outlet are both connected to the drying chamber.

4. The electrode baking equipment according to claim 2, characterized in that: The roller assembly includes a support frame and the rollers connected to the support frame. The rollers are divided into an upper roller group close to the top of the drying chamber and a lower roller group close to the bottom of the drying chamber.

5. The electrode baking equipment according to claim 4, characterized in that: The support frame includes: two parallel distributed bottom plates, two parallel distributed top plates, and vertical plates that connect and support the corresponding top plates and bottom plates from the ends. The top plates are located above the bottom plates, the upper roller group is rotatably connected between the two top plates, and the lower roller group is rotatably connected between the two bottom plates.

6. The electrode baking equipment according to claim 5, characterized in that: The heating body is a heating plate, which is respectively arranged on the top and / or bottom of the roller assembly. The heating plate is also arranged on the front and rear sides of both ends of the roller of the roller assembly in the length direction.

7. The electrode baking equipment according to claim 2, characterized in that: A plurality of ventilation holes are also provided on the back plate of the box body.

8. The electrode baking equipment according to any one of claims 1 to 7, characterized in that: A plurality of temperature sensors are further provided in the drying chamber, and the plurality of temperature sensors are distributed at different positions in the drying chamber.

9. The electrode baking equipment according to claim 8, characterized in that: An opening is provided on the front side wall of the box body. A visual door is provided at the opening. One side of the visual door is rotatably hinged to the box body, and the other opposite side is connected to the box body through a quick lock.

10. The electrode baking equipment according to claim 9, characterized in that: The electrode baking equipment further includes a material discharge assembly located in front of the material inlet of the box body, and a material receiving assembly arranged behind the material outlet of the box body.

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