Drying oven spraying device

Abstract

The utility model belongs to the technical field of battery production, and particularly relates to a drying oven spraying device which comprises a drying oven body, a spray head component and a driving mechanism. A feeding hole is formed in the drying oven body; the driving mechanism is communicated with the spray head part; the spray head part is connected to the outer part of the drying oven body; and the spraying direction of the spray head part is inclined relative to the drift diameter direction of the feeding hole. According to the utility model, water can be sprayed on a base material entering the drying oven, so that the process of waiting for temperature reduction and then temperature rise in a conventional drying oven is avoided; the use flexibility is high, and the occupied space is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and in particular relates to an oven spraying device. Background Art

[0002] With the increasing production capacity and equipment production speed, battery manufacturers have higher and higher technical requirements for coating machines, and the corresponding coating speed is also getting faster and faster. Coating machines are usually equipped with an oven to bake the electrodes.

[0003] However, some existing technologies have slow oven heating and cooling rates. If you don't want a sudden temperature increase or humidity drop after shutting down, you need to turn off the heating and exhaust functions. When production begins, you have to turn on the heating and exhaust functions and wait for the oven temperature to recover, which often takes a long time and seriously affects production efficiency. Furthermore, if the oven temperature and humidity fluctuate during production, the electrode is prone to cracking. Cracks may appear at the edges or at the ends, affecting the electrode's appearance. Lithium ions can also accumulate in these defects, potentially leading to lithium deposition, thus impacting production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an oven spraying device to solve the technical problem of low production efficiency in view of the shortcomings of the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An oven spray device comprises an oven body, a nozzle component and a drive mechanism; the oven body is provided with a feed port; the drive mechanism is connected to the nozzle component; the nozzle component is connected to the outside of the oven body; and the spray direction of the nozzle component is inclined with respect to the diameter direction of the feed port.

[0007] Preferably, the nozzle component includes a hanging body and a spray body; the hanging body is connected to the spray body; and the hanging body is detachably connected to the outside of the oven body; the spray direction of the spray body is inclined to the diameter direction of the feed port.

[0008] Preferably, a mounting hole is provided in the hanging body; the mounting hole is detachably connected to the exterior of the oven body 1 .

[0009] Preferably, the spray body comprises a containing shell; the containing shell is provided with a liquid outlet pipe; the containing shell is provided with a gas input pipe and a liquid input pipe both of which are connected to the liquid outlet pipe.

[0010] Preferably, the driving mechanism includes a liquid supply component and an air compression component; the output end of the liquid supply component is communicated with the nozzle component; the output end of the air compression component is communicated with the nozzle component.

[0011] Preferably, the liquid supply assembly includes a liquid outlet box, a booster pump and a first branch pipe; the input end of the booster pump is connected to the output end of the liquid outlet box; the output end of the booster pump is connected to the input end of the first branch pipe; and the output end of the first branch pipe is connected to the nozzle component.

[0012] Preferably, a liquid level sensor is provided in the liquid outlet box.

[0013] Preferably, the air compression component includes a compressor, a pressure regulating valve, a solenoid valve, a diverter component and at least two second branches; the two ends of one of the second branches are respectively connected to the output end of the compressor and the input end of the pressure regulating valve; the two ends of the other second branch are respectively connected to the output end of the pressure regulating valve and the input end of the solenoid valve; the input end of the diverter component is connected to the output end of the solenoid valve; and the output end of the diverter component is connected to the nozzle component.

[0014] Preferably, the diverter assembly includes a first diverter joint, a second diverter joint and at least one diverter branch pipe; the number of branches of the first diverter joint corresponds to the number of branches of the second diverter joint; the two side ends of the diverter branch pipe are respectively connected to the separate branches corresponding to the first diverter joint and the second diverter joint; the input end of the first diverter joint is connected to the output end of the solenoid valve; the output end of the second diverter joint is connected to the nozzle component.

[0015] Preferably, the oven spraying device further comprises a conveying component; an output end of the conveying component is arranged at the feed inlet and below the spray head component.

[0016] The beneficial effect of the present invention is that, by equipping the feed port with a nozzle component, the present technical solution can realize spraying, humidification and cooling treatment before operations such as drying, and spray water on the substrate entering the oven to avoid the conventional process of waiting for the inside of the oven to cool down first and then heat up, thereby reducing the temperature in the oven and increasing the humidity; thereby improving production efficiency; and the present invention has high flexibility in use, occupies little space, and has low overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will refer to the attached Figures 1 to 5 To describe the features, advantages and technical effects of exemplary embodiments of the present invention.

[0018] Figure 1 This is a schematic structural diagram of an oven spray device according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the nozzle component of the oven spray device according to one embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of a liquid supply assembly of an oven spray device according to an embodiment of the present invention;

[0021] Figure 4 This is a structural schematic diagram of an air compression assembly of an oven spray device according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the assembly of the diversion component and the spray head component of the oven spray device according to one embodiment of the present invention.

[0023] In the figure: 1- oven body; 11- feed inlet; 2- nozzle component; 21- hanging body; 211- mounting hole; 212- limiting rod; 22- spray body; 221- containing shell; 222- liquid outlet pipe; 223- gas input pipe; 224- liquid input pipe; 3- conveying component; 4- driving mechanism; 41- liquid supply component; 411- liquid outlet box; 412- boosting pump; 413- first branch pipe; 414- liquid level sensor; 42- air compression component; 421- compressor; 422- pressure regulating valve; 423- solenoid valve; 424- diversion component; 4241- first diversion joint; 4242- diversion branch pipe. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0025] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or multiple situations exist. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0028] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0029] The following is combined with Figures 1 to 5 The present invention is further described in detail, but is not intended to limit the present invention.

[0030] like Figure 1 As shown, in one embodiment of the present invention, the oven spray device comprises an oven body 1, a nozzle component 2 and a drive mechanism 4; the oven body 1 is provided with a feed port 11; the drive mechanism 4 is connected to the nozzle component 2; the nozzle component 2 is connected to the outside of the oven body 1; and the spraying direction of the nozzle component 2 is inclined to the diameter direction of the feed port 11.

[0031] The technical solution of the present invention is to equip the feed port with a nozzle component, so that spraying, humidification and cooling treatment can be carried out before operations such as drying. Water is sprayed on the substrate entering the oven to avoid the conventional process of waiting for the inside of the oven to cool down and then heat up, thereby reducing the temperature in the oven and increasing the humidity; thereby improving production efficiency; and the utility model has high flexibility in use, occupies little space, and is low in overall cost.

[0032] In some embodiments, a temperature sensor and a humidity sensor are provided inside the oven body 1. By adding temperature and humidity sensors inside the oven body 1, the temperature and humidity changes of the oven are displayed in real time to adjust the water spraying amount and make corresponding adjustments.

[0033] Specifically, in some embodiments, Figure 1 As shown, the oven spraying device further includes a conveying component 3; the output end of the conveying component 3 is located at the feed inlet 11 and below the spray head component 2. The conveying component 3 may be a conveyor roller or a conveyor belt. In other words, by spraying water on the substrate and passing it through the roller, the risk of contaminants sticking to the roller can be reduced.

[0034] Specifically, in some embodiments, Figure 1 and 2 As shown, the nozzle component 2 includes a hanging body 21 and a spray body 22; the hanging body 21 is connected to the top of the spray body 22; and the hanging body 21 is detachably connected to the outside of the oven body 1; the spray direction of the spray body 22 is inclined to the diameter direction of the feed port 11. Figure 2 As shown, the hanging body 21 is provided with a mounting hole 211; the mounting hole 211 is used to be detachably connected to the outside of the oven body 1. Furthermore, a mounting post is provided on the outside of the oven body 1; the outer surface of the mounting post is tightly connected to the inner wall of the mounting hole 211. In other words, the spray body 22 is suspended on the outside of the oven body 1 through the cooperation between the mounting hole 211 and the mounting post; thereby improving the convenience of assembly and disassembly and ensuring the orderly conduct of spraying. In some embodiments, such as Figure 2 As shown, the hanging body 21 is provided with a limiting rod 212, which can be extended to the mounting hole 211. Furthermore, the limiting rod 212 is detachably connected to the hanging body 21 by a thread. By extending the limiting rod 212 into the mounting hole 211 and abutting against the mounting post, the stability of the assembly of the spray body 22 can be improved, ensuring orderly use.

[0035] Specifically, in some embodiments, Figure 2 and 5 As shown, the spray body 22 includes a housing 221; a liquid outlet pipe 222 is provided at (the front of) the housing 221; and a gas inlet pipe 223 and a liquid inlet pipe 224 are provided at (the bottom of) the housing 221, both of which are connected to the liquid outlet pipe 222. In other words, the interior of the housing 221 is hollow; a liquid inlet pipe 224 for conveying liquid and a gas inlet pipe 223 for conveying compressed air are provided at the bottom to achieve liquid atomization, which is then sprayed through the liquid outlet pipe 222 at the front. This allows the water volume to be controlled to maintain stable temperature and humidity, which is beneficial to improving the bonding strength of the electrode and reducing the risk of electrode powder loss and cracking. The nozzle component 2 can be a reverse atomizing nozzle, preferably an ST-6 wave crest nozzle. This nozzle has a flow opening and spray width adjustment knob to better control the speed and amount of the spray, thereby ensuring processing quality. In some embodiments, the liquid outlet diameter D1 of the liquid outlet pipe 222 satisfies the following: D1 ≤ 0.5 mm. This structure can effectively control the stability of the output of the atomizing gas and avoid excessive or insufficient liquid discharge.

[0036] Specifically, in some embodiments, Figure 1As shown, the drive mechanism 4 includes a liquid supply assembly 41 and an air compression assembly 42. The output end of the liquid supply assembly 41 is connected to the nozzle assembly 2 (the liquid input pipe 224 of the middle spray body 22); the output end of the air compression assembly 42 is connected to the nozzle assembly 2 (the gas input pipe 223 of the middle spray body 22). The liquid supply assembly 41 and the air compression assembly 42 are respectively arranged on the outer sides of the oven body 1, one on the left and one on the right, thereby reducing space occupation and ensuring orderly atomization and spraying.

[0037] Specifically, in some embodiments, Figure 1 and 3 As shown, the liquid supply assembly 41 includes a liquid outlet box 411, a booster pump 412 and a first branch pipe 413; the input end of the booster pump 412 is connected to the output end of the liquid outlet box 411; the output end of the booster pump 412 is connected to the input end of the first branch pipe 413; the output end of the first branch pipe 413 is connected to the nozzle component 2 (the liquid input pipe 224 of the middle spray body 22). Figure 3 As shown, a liquid level sensor 414 is installed within the liquid outlet tank 411. When the water level falls below 1 / 4 of the full capacity, a water level warning pops up on the display screen. DI water can be added manually or automatically, and a 50μm pore filter is added to the water inlet pipe of the water tank. The delivery diameter D2 of the first branch pipe 413 satisfies the following conditions: 6mm≤D2≤10mm, preferably 8mm. The material of the first branch pipe 413 is PE or PVC.

[0038] Specifically, in some embodiments, Figure 1 and 4 As shown, the air compression component 42 includes a compressor 421, a pressure regulating valve 422, a solenoid valve 423, a diverter component 424 and at least two second branches 425; the two ends of one of the second branches 425 are respectively connected to the output end of the compressor 421 and the input end of the pressure regulating valve 422; the two ends of the other second branch 425 are respectively connected to the output end of the pressure regulating valve 422 and the input end of the solenoid valve 423; the input end of the diverter component 424 is connected to the output end of the solenoid valve 423; and the output end of the diverter component 424 is connected to the nozzle component 2 (the gas input pipe 223 of the spray body 22). In other words, the solenoid valve 423 and the pressure regulating valve 422 are connected to the coating machine (including the drying box 1) through the PLC, and a button for controlling the water spray is added to the main interface of the coating machine control screen. Among them, as Figure 4 and 5As shown, the diverter assembly 424 includes a first diverter joint 4241, a second diverter joint 4243 and at least one diverter branch pipe 4242; the number of branches of the first diverter joint 4241 corresponds to the number of branches of the second diverter joint 4243; both side ends of the diverter branch pipe 4242 are respectively connected to the separate branches corresponding to the first diverter joint 4241 and the second diverter joint 4243; the input end of the first diverter joint 4241 is connected to the output end of the solenoid valve 423; the output end of the second diverter joint 4243 is connected to the nozzle component 2 (the gas input pipe 223 of the middle spray body 22). Further, as Figure 1 As shown, the first diversion joint 4241 is provided with two branches (i.e., a three-way joint); the number of diversion branch pipes 4242 is two. This structure can improve the output speed and amount through the diversion effect of the output end of the delivery; combined with the converging effect of the input end of the spray, it can improve the speed and amount of the spray input; thereby greatly improving production efficiency; and facilitating the control of water volume and speed. Among them, the delivery diameter D3 of each diversion branch pipe 4242 satisfies: 6mm≤D3≤10mm; preferably 8mm; and the material of the diversion branch pipe 4242 is PE or PVC pipe. Among them, the delivery diameter D4 of the second branch pipe 425 satisfies: 6mm≤D4≤10mm; preferably 8mm; and the material of the second branch pipe 425 is PE or PVC pipe.

[0039] Operation: When the machine is shut down and restarted for coating during production, the operator pulls the foil, sets the feed speed and blade spacing, and nozzle assembly 2 sprays atomized water onto the foil surface. After the foil exits drying oven 1, the atomized water is dried, cooling and humidifying the interior of drying oven 1 and wiping the tail roller. When the coating button is pressed on the coating machine, nozzle assembly 2 automatically stops. The water spray rate is 35ml / min to 55ml / min, and the water mist is fan-shaped, not exceeding the width of the foil.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0041] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. An oven spray device, characterized in that: The invention comprises an oven body, a nozzle component and a driving mechanism; the oven body is provided with a feed port; the driving mechanism is connected to the nozzle component; the nozzle component is connected to the outside of the oven body; and the spraying direction of the nozzle component is inclined to the diameter direction of the feed port.

2. The oven spraying device according to claim 1, characterized in that: The nozzle component includes a hanging body and a spray body; the hanging body is connected to the spray body; and the hanging body is detachably connected to the outside of the oven body; the spray direction of the spray body is inclined to the diameter direction of the feed port.

3. The oven spraying device according to claim 2, characterized in that: A mounting hole is provided in the hanging body; the mounting hole is detachably connected to the exterior of the oven body.

4. The oven spraying device according to claim 2, characterized in that: The spray body comprises a containing shell; the containing shell is provided with a liquid outlet pipe; the containing shell is provided with a gas input pipe and a liquid input pipe both of which are connected with the liquid outlet pipe.

5. The oven spraying device according to claim 1, 2 or 4, characterized in that: The driving mechanism includes a liquid supply component and an air compression component; the output end of the liquid supply component is communicated with the nozzle component; the output end of the air compression component is communicated with the nozzle component.

6. The oven spraying device according to claim 5, characterized in that: The liquid supply assembly includes a liquid outlet box, a booster pump and a first branch pipe; the input end of the booster pump is connected to the output end of the liquid outlet box; the output end of the booster pump is connected to the input end of the first branch pipe; the output end of the first branch pipe is connected to the nozzle component.

7. The oven spraying device according to claim 6, characterized in that: A liquid level sensor is provided in the liquid outlet box.

8. The oven spraying device according to claim 5, characterized in that: The air compression assembly includes a compressor, a pressure regulating valve, a solenoid valve, a diverter assembly and at least two second branches; the two ends of one of the second branches are respectively connected to the output end of the compressor and the input end of the pressure regulating valve; the two ends of the other second branch are respectively connected to the output end of the pressure regulating valve and the input end of the solenoid valve; the input end of the diverter assembly is connected to the output end of the solenoid valve; and the output end of the diverter assembly is connected to the nozzle component.

9. The oven spraying device according to claim 8, characterized in that: The diverter assembly includes a first diverter joint, a second diverter joint and at least one diverter branch pipe; the number of branches of the first diverter joint corresponds to the number of branches of the second diverter joint; the two side ends of the diverter branch pipe are respectively connected to the separate branches corresponding to the first diverter joint and the second diverter joint; the input end of the first diverter joint is connected to the output end of the solenoid valve; the output end of the second diverter joint is connected to the nozzle component.

10. The oven spraying device according to claim 1, characterized in that: The oven spraying device further comprises a conveying component; an output end of the conveying component is arranged at the feed inlet and below the spray head component.

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