Air nozzle and coating machine drying oven

Abstract

The utility model discloses a tuyere and a coating machine drying oven, the tuyere is used for the coating machine drying oven, the tuyere comprises a strip-shaped hollow tuyere body and an air blocking mechanism arranged on the tuyere body, and the tuyere body is provided with an air inlet and at least one air outlet slit; an air uniformizing mechanism is assembled in the tuyere body, and a plurality of air uniformizing holes are distributed in an air uniformizing area of the air uniformizing mechanism; the wind blocking mechanism comprises a fixing support, a reel and an elastic baffle, and the fixing support is installed at the end of the tuyere body; the reel is rotationally mounted on the fixed bracket; the head end of the elastic baffle is fixed to the reel, the part, wound around the reel, of the elastic baffle is in a curled state, the part, not wound around the reel, of the elastic baffle is in a straight state, and the part, in the straight state, of the elastic baffle is movably inserted into the air nozzle body to form an air blocking part. The utility model has the beneficial effects that the surface of the pole piece is uniformly dried, and the insertion length of the elastic baffle is adjustable to adapt to pole pieces of different models; the whole adjusting process is fast, and the device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of coating ovens, in particular to an air nozzle and a coating oven. Background Art

[0002] Coating is a process of coating the surface of a substrate with a slurry, and then drying and rolling up the substrate with the slurry on the surface. In the prior art, a coating machine is usually used to coat the slurry on the substrate, and then the substrate is sent into one or more sections of an oven to dry the slurry. The oven is generally provided with multiple air nozzles to blow air to the surface of the substrate to accelerate the drying of the slurry. The drying device of the existing coating machine mainly includes an oven and an air nozzle. The oven is provided with an air duct for introducing hot air; the air duct is provided with an air outlet, and the air nozzle is fixedly installed at the air outlet of the air duct, which is used to direct the hot air to the substrate to be dried, so as to use the hot air to dry the slurry on the body.

[0003] The coating machine is the front-end equipment of new energy. The foil used to make battery materials needs to go through the drying process before subsequent work can be carried out. The air flows from the wind nozzle to the top of the electrode. Due to the structure of the hull, it usually flows to both sides after contacting the electrode. This phenomenon will cause the lateral flow rate on both sides of the electrode to be faster than that in the middle, resulting in excessive drying on both sides, making the electrode not dried evenly, resulting in abnormal appearance and quality of the electrode. This phenomenon is particularly obvious when the equipment is wider.

[0004] Therefore, how to design a device that can evenly discharge air during the drying process so that the electrode is evenly dried to avoid the phenomenon of over-drying and cracking of the electrode caused by uneven drying is a technical problem that technicians in this field need to solve. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a nozzle and a coating machine oven, which can avoid the uniform air discharge during the drying process, so that the pole piece is evenly dried to avoid cracking of the pole piece.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A wind nozzle for a coating machine oven, characterized in that it comprises a strip-shaped hollow wind nozzle body and a wind shield mechanism arranged on the wind nozzle body, the wind nozzle body being provided with an air inlet for docking with a hull and at least one wind outlet slit; a uniform wind mechanism is assembled in the wind nozzle body, and a plurality of uniform wind holes are arranged in the uniform wind area of ​​the uniform wind mechanism; the wind shield mechanism comprises a fixed bracket, a reel and an elastic baffle, the fixed bracket is mounted on the end portion arranged in the length direction of the wind nozzle body; the reel is rotatably mounted on the fixed bracket, and the reel is arranged along the width direction of the wind nozzle body; the head end of the elastic baffle is fixed on the reel, the part of the elastic baffle wound on the reel is in a curled state, the part of the elastic baffle not wound on the reel is in a straight state, and the part of the elastic baffle in the straight state is movably inserted in the wind nozzle body to form a wind shield portion that blocks part of the uniform wind holes.

[0008] Preferably, the air nozzle body includes an air nozzle guide cavity and an air nozzle outer cavity which are arranged along the thickness direction and are in the shape of a hollow strip, the air nozzle guide cavity is partially accommodated in the air nozzle outer cavity, and an air outlet slit is left between the outer wall of the air nozzle guide cavity and the inner wall of the air nozzle outer cavity; the two ends of the air nozzle outer cavity in the length direction are provided with plugs connecting the inside and outside of the air nozzle outer cavity; a docking air outlet is provided on the side of the air nozzle outer cavity away from the air nozzle guide cavity, and the docking air outlet is provided with an air inlet connected to the inner cavity of the air nozzle outer cavity.

[0009] Preferably, the nozzle guide cavity is accommodated in a side of the nozzle outer cavity away from the docking air outlet, and the outer wall of the nozzle guide cavity in the length direction and the inner wall of the nozzle outer cavity in the length direction form an air outlet slit connecting the inner cavity of the nozzle outer cavity.

[0010] More preferably, the air outlet slits are arranged along the length direction of the nozzle body.

[0011] Preferably, the wind uniforming mechanism includes a rectangular wind uniforming plate and a pair of folding plates folded toward the same side along the long sides of the wind uniforming plate, the wind uniforming plate has a first surface and a second surface that are opposite to each other, and a plurality of wind uniforming holes connecting the first surface and the second surface are evenly arranged on the wind uniforming plate; the two folding plates are parallel to each other, and the bottom ends of the folding plates extend to the docking air outlet.

[0012] Preferably, a pair of guide plates are symmetrically provided on two inner walls opposite to each other in the width direction of the outer cavity of the wind nozzle, the guide plates are located above the wind uniforming plates, and the guide plates and the first surface of the wind uniforming plates define a sliding groove for pulling the elastic baffle.

[0013] Preferably, the elastic baffle is made of Teflon, which has the properties of high temperature resistance, corrosion resistance and good flexibility.

[0014] Preferably, the wind shielding mechanism further comprises a winding core strip, wherein the winding core strip is arranged on the fixing bracket, and the winding core strip presses the portion of the elastic baffle wound on the winding shaft.

[0015] Preferably, a hand wheel is installed at the shaft end of the reel.

[0016] Preferably, an annular sealing ring is provided at the air inlet end of the docking air outlet.

[0017] Preferably, a buckle hook is provided on the outer wall of the docking air outlet.

[0018] The utility model also provides a coating machine oven, which is characterized by comprising the air nozzle.

[0019] The working principle of the utility model is as follows: the reel is fixed on the outer cavity of the wind nozzle by a fixed bracket, the elastic baffle is rolled on the reel and pressed by the winding core strip to prevent the elastic baffle from expanding on the reel. The part of the elastic baffle not wound on the reel will be in a straight state because it is not subjected to external force. This part of the elastic baffle passes through the insertion port of the outer cavity of the wind nozzle and is inserted into the slide groove between the wind uniform plate and the guide plate. The airflow is sent into the outer cavity of the wind nozzle through the air inlet of the docking air outlet, and then blows through the wind uniform hole of the wind uniform plate, and finally blows out from the air outlet slit. The airflow is discharged from the wind nozzle to the top of the pole piece. Due to the structure of the hull, it usually flows to both sides after contacting the pole piece. This phenomenon will make the lateral flow velocity on the two sides of the pole piece faster than the middle, causing the two sides to dry faster than the middle area, resulting in transitional drying and cracking on both sides of the pole piece, affecting the appearance and quality of the pole piece. This phenomenon is particularly obvious when the equipment is wider. This application adds a wind shield mechanism, in which the elastic baffle can block some of the uniform wind holes on both sides of the uniform wind plate, and adjust the wind speed in the middle to increase, causing the wind speed on both sides to decrease. When the wind contacts the pole piece and flows to both sides, the wind to both sides will also dry the adjacent areas, thereby making the pole piece surface dry evenly. The width of the elastic shield can be adjusted by the hand wheel, so even if the width of the pole piece changes with the width of the product, this solution can adjust the length to make the pole piece surface dry evenly.

[0020] The beneficial effects of the utility model are: solving the problem that the lateral flow velocity on the two sides of the electrode is too fast compared to the middle, ensuring that the surface of the electrode is evenly dried, avoiding excessive drying on both sides of the electrode, and causing problems with the appearance and quality of the electrode; the insertion length of the elastic baffle is adjustable to adapt to electrode pieces of different models and sizes; the entire adjustment process is fast, the device structure is simple, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the structural diagrams of an embodiment of the utility model.

[0022] Figure 2The second structural diagram of an embodiment of the present utility model is shown.

[0023] Figure 3 Shown is a front view of an embodiment of the present utility model.

[0024] Figure 4 Shown is a bottom view of an embodiment of the present invention.

[0025] Figure 5 Display as Figure 4 The BB cutaway position stereogram shows the internal structure of the nozzle.

[0026] Figure 6 Display as Figure 4 BB cross-sectional view.

[0027] Figure 7 Shown is a side view of an embodiment of the present invention.

[0028] Figure 8 Display as Figure 7 AA section view.

[0029] Fig. 9 Display as Figure 8 Enlarged view of point C.

[0030] Fig.10 Display as Figure 8 Enlarged view of point D.

[0031] Fig.11 Shown is a structural schematic diagram of the wind uniforming mechanism of the utility model.

[0032] Fig.12 The display is a schematic diagram of the airflow movement direction (the arrow direction represents the airflow movement direction).

[0033] Fig.13 Shown is a schematic diagram of the position of the wind nozzle of the utility model installed on the hull.

[0034] Fig.14 Display as Fig.13 EE cross-sectional view.

[0035] In the attached figure:

[0036] 1. Nozzle body; 11. Nozzle guide cavity; 12. Nozzle outer cavity; 121. Guide plate; 13. Docking vent; 131. Air inlet; 132. Annular sealing ring; 133. Buckle hook;

[0037] 2. Wind shield mechanism; 21. Fixed bracket; 22. Reel; 221. Hand wheel; 23. Elastic baffle; 24. Reel core pressure strip;

[0038] 3. Wind uniformity mechanism; 31. Wind uniformity plate; 311. Wind uniformity hole; 32. Folding plate;

[0039] 4. Hull. DETAILED DESCRIPTION

[0040] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0041] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0042] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.

[0043] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0048] The utility model discloses a wind nozzle, which is used in a coating machine oven, and comprises a strip-shaped wind nozzle body 1 and a wind shielding mechanism 2 arranged on the wind nozzle body, wherein the wind nozzle body 1 is provided with an air inlet for docking with a hull 4 and at least one wind outlet slit; the wind nozzle body 1 is equipped with a uniform wind mechanism 3, and a uniform wind area of ​​the uniform wind mechanism 3 is provided with a plurality of uniform wind holes; the wind shielding mechanism 2 comprises a fixed bracket 21, a reel 22 and an elastic baffle 23, and the fixed bracket 21 is installed on the wind nozzle body 1. The end in the length direction; the reel 22 is rotatably mounted on the fixed bracket 21, and the reel 22 is arranged along the width direction of the nozzle body 1; the head end of the elastic baffle 23 is fixed on the reel 22, the part of the elastic baffle wound on the reel is in a curled state, and the part of the elastic baffle not wound on the reel is in a straight state, and the part of the elastic baffle in the straight state is movably inserted into the nozzle body from the socket to form a wind shielding portion that blocks part of the uniform air hole.

[0049] In some embodiments of the utility model, the nozzle body 1 includes a nozzle guide cavity 11 and a nozzle outer cavity 12 which are arranged along the thickness direction and are in the shape of a hollow strip. The nozzle guide cavity 11 is partially accommodated in the nozzle outer cavity 12, and the outer wall of the nozzle guide cavity 11 and the inner wall of the nozzle outer cavity 12 form an air outlet slit 14 connecting the inner cavity of the nozzle outer cavity 12; both ends of the nozzle outer cavity 12 in the length direction are provided with sockets connecting the inside and outside of the nozzle outer cavity; a docking vent 13 is provided on the side of the nozzle outer cavity 12 away from the nozzle guide cavity, and an air inlet 131 connected to the inner cavity of the nozzle outer cavity is provided on the docking vent 13.

[0050] In some embodiments of the utility model, the nozzle guide cavity 11 is accommodated in a side of the nozzle outer cavity 12 away from the docking air outlet 13, and the outer wall of the nozzle guide cavity 11 in the length direction and the inner wall of the nozzle outer cavity 12 in the length direction form an air outlet slit 14 connecting the inner cavity of the nozzle outer cavity 12.

[0051] In some embodiments of the present invention, the air outlet slits 14 are arranged along the length direction of the air nozzle body 1 .

[0052] In some embodiments of the utility model, the wind uniforming mechanism 3 includes a rectangular wind uniforming plate 31 and a pair of folding plates 32 folded downward along the long sides of the wind uniforming plate, the wind uniforming plate 31 has a first surface and a second surface that are opposite to each other, and a plurality of wind uniforming holes 311 connecting the first surface and the second surface are evenly arranged on the wind uniforming plate 31; the two folding plates 32 are parallel to each other, and the bottom ends of the folding plates 32 extend to the docking air outlet 13.

[0053] In some embodiments of the utility model, a pair of guide plates 121 are symmetrically provided on two inner walls of the outer cavity 12 of the wind nozzle that are opposite to each other in the width direction. The guide plates are located above the wind uniforming plates, and the guide plates 121 and the first surface of the wind uniforming plates 31 define a sliding groove for pulling the elastic baffle.

[0054] In some embodiments of the present invention, the two guide plates 121 are parallel to the air uniforming plate and are arranged above the long sides of the air uniforming plate.

[0055] In some embodiments of the utility model, the material of the elastic baffle 23 is Teflon, which has the properties of high temperature resistance, corrosion resistance and good softness. The elastic baffle 23 can not only maintain the flat state of the plane, but also can be curled after applying external force, and can also restore the straight state from the curled state after further applying external force. The elastic baffle 23 can be wound on the reel into a multi-layer cylindrical reel core. The elastic baffle 23 maintains a straight state when it is not wound on the reel, which is convenient for free insertion into the chute between the wind uniforming plate 121 and the top cover 132. The height of the chute in the thickness direction of the nozzle body 1 is slightly greater than the thickness of the elastic baffle 23, so that the elastic baffle 23 can be freely inserted into the slit, and can also provide external force for the elastic baffle 23 to maintain the part of the elastic baffle 23 inserted in the slit from the curled state to the straight state. When the elastic baffle is pulled out of the chute, it can be quickly wound on the reel to achieve a curled state. When further external force is applied to the curled elastic baffle 23 (for example, the elastic baffle 23 is inserted into the slide groove through the insertion opening), the curled elastic baffle 23 can be restored to a straight state.

[0056] In some embodiments of the utility model, the wind shielding mechanism 2 also includes a winding core strip 24, and the winding core strip 24 is arranged on the fixed bracket 21. The winding core strip 24 presses the part of the elastic baffle 23 wound on the winding shaft 22 to prevent the elastic baffle wound on the winding shaft from expanding.

[0057] In some embodiments of the utility model, a hand wheel 221 is installed at the shaft end of the reel 22. The reel 22 is rotated by turning the hand wheel 221 to adjust the length of the elastic baffle inserted into the slit, thereby adjusting the size of the area blocked on both sides.

[0058] In some embodiments of the present invention, an annular sealing ring 132 is provided at the air inlet end of the docking air outlet 13 .

[0059] In some embodiments of the present invention, a buckle hook 133 is provided on the outer wall of the docking air outlet 13 .

[0060] The utility model also provides a coating machine oven, comprising the air nozzle.

[0061] The working principle of the utility model is as follows: the reel 22 is fixed on the outer cavity 12 of the wind nozzle by the fixed bracket 21, and the elastic baffle is rolled on the reel and pressed by the winding core strip to prevent the elastic baffle 23 from expanding on the reel 22. The part of the elastic baffle not wound on the reel 22 will be in a straight state due to the lack of external force. The part of the elastic baffle is inserted into the slot defined by the wind plate and the guide plate from the insertion port of the outer cavity 12 of the wind nozzle, and the airflow is sent into the outer cavity of the wind nozzle through the air inlet of the docking air outlet, and then blown through the wind hole of the wind plate, and finally blown out from the air outlet slit. The airflow blows from the air outlet slit to the surface of the pole piece 4. Due to the structure of the hull, it usually flows to both sides after contacting the pole piece 4. This phenomenon will make the surface of the two sides of the pole piece 4 have a faster lateral flow velocity than the middle, resulting in the drying of the two sides of the area faster than the middle area, resulting in transitional drying and cracking on both sides of the pole piece 4, affecting the appearance and quality of the pole piece. This phenomenon is particularly obvious when the equipment is wide. The present application adds a wind shielding mechanism 2, in which the elastic baffle 23 can block part of the uniform wind holes on both sides of the uniform wind plate, and adjust the wind speed in the middle to increase, so that the wind speed on both sides decreases. When the wind contacts the pole piece and flows to both sides, the wind to both sides will also dry the adjacent areas, so that the surface of the pole piece is dried evenly. The width of the elastic shield can be adjusted by the hand wheel, so even if the width of the pole piece 4 changes with the width of the product, this solution can adjust the length so that the surface of the pole piece is dried evenly.

[0062] The above examples are intended to illustrate the embodiments disclosed in the present utility model and should not be construed as limitations on the present utility model. In addition, the various modifications listed herein and the changes in the methods and compositions in the utility model are obvious to those skilled in the art without departing from the scope and spirit of the present utility model. Although the present utility model has been specifically described in conjunction with a variety of specific preferred embodiments of the present utility model, it should be understood that the present utility model should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included in the scope of the present utility model.

Claims

1. A nozzle for a coating machine oven, characterized in that: It includes a strip-shaped hollow wind nozzle body and a wind shielding mechanism arranged on the wind nozzle body, the wind nozzle body is provided with an air inlet for docking with the hull and at least one wind outlet slit; the wind nozzle body is equipped with a wind uniformity mechanism, and the wind uniformity area of ​​the wind uniformity mechanism is provided with a plurality of wind uniformity holes; the wind shielding mechanism includes a fixed bracket, a reel and an elastic baffle, the fixed bracket is installed at the end of the wind nozzle body in the length direction; the reel is rotatably installed on the fixed bracket, and the reel is arranged along the width direction of the wind nozzle body; the head end of the elastic baffle is fixed on the reel, the part of the elastic baffle wound on the reel is in a curled state, the part of the elastic baffle not wound on the reel is in a straight state, and the part of the elastic baffle in the straight state is movably inserted in the wind nozzle body to form a wind shielding part that blocks part of the wind uniformity holes.

2. The air nozzle according to claim 1, characterized in that: The air nozzle body includes an air nozzle guide cavity and an air nozzle outer cavity which are arranged along the thickness direction and are in the shape of a hollow strip. The air nozzle guide cavity is partially accommodated in the air nozzle outer cavity, and an air outlet slit is left between the outer wall of the air nozzle guide cavity and the inner wall of the air nozzle outer cavity; the two ends of the air nozzle outer cavity in the length direction are provided with plugs connecting the inside and outside of the air nozzle outer cavity; a docking air outlet is provided on the side of the air nozzle outer cavity away from the air nozzle guide cavity, and the docking air outlet is provided with an air inlet connected to the inner cavity of the air nozzle outer cavity.

3. The air nozzle according to claim 2, characterized in that: The air outlet slits are arranged along the length direction of the air nozzle body.

4. The air nozzle according to claim 2, characterized in that: The wind uniforming mechanism includes a rectangular wind uniforming plate and a pair of folding plates folded toward the same side along the long sides of the wind uniforming plate, the wind uniforming plate has a first surface and a second surface that are opposite to each other, and a plurality of wind uniforming holes connecting the first surface and the second surface are evenly arranged on the wind uniforming plate; the two folding plates are parallel to each other, and the bottom ends of the folding plates extend to the docking air outlet.

5. The air nozzle according to claim 4, characterized in that: A pair of guide plates are symmetrically provided on two inner walls of the outer cavity of the air nozzle that are opposite to each other in the width direction. The guide plates are located above the air uniform plate, and the guide plates and the first surface of the air uniform plate define a sliding groove for pulling the elastic baffle.

6. The air nozzle according to claim 1, characterized in that: The wind shielding mechanism further comprises a winding core pressure strip, wherein the winding core pressure strip is arranged on the fixing bracket, and the winding core pressure strip presses the part of the elastic baffle wound on the winding shaft.

7. The air nozzle according to claim 1, characterized in that: A hand wheel is installed on one shaft end of the reel.

8. The air nozzle according to claim 3, characterized in that: An annular sealing ring is arranged at the air inlet end of the docking air outlet.

9. The air nozzle according to claim 8, characterized in that: A buckle hook is provided on the outer wall of the docking air outlet.

10. A coating machine oven, characterized in that: It comprises the tuyere as claimed in any one of claims 1 to 9.

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