Negative pressure assembly drying mechanism

Abstract

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a negative pressure assembly drying mechanism. A negative pressure assembly drying mechanism is used for a negative pressure assembly, the negative pressure assembly comprises a plurality of negative pressure cups and a plurality of negative pressure suction nozzles, each negative pressure cup is provided with a negative pressure suction nozzle, the negative pressure assembly drying mechanism comprises an air supply assembly, the air supply assembly comprises an air supply device, a heater and a first air inlet pipe, and the air supply device is connected to an inlet of the heater; the first end of the first air inlet pipe is connected to an outlet of the heater, and the second end of the first air inlet pipe communicates with the negative pressure cup. The air supply assembly introduces heated air into the negative pressure cup through the first air inlet pipe by means of the air supply device and discharges the heated air out of the negative pressure suction nozzle, so that an air flowing channel is formed, the negative pressure assembly cleaned with a non-volatile cleaning solvent is rapidly dried, the drying efficiency and effect are improved, and the dryness of the negative pressure assembly is ensured.

Description

Technical Field

[0001] This application relates to the technical field of lithium battery manufacturing equipment, and particularly to a drying mechanism for a negative pressure component. Background Art

[0002] In the technical field of lithium battery manufacturing equipment, the formation process is one of the key steps in lithium battery manufacturing. Formation is the first charge and discharge of the battery through a specific electrochemical process, the purpose of which is to activate the positive and negative electrode materials of the battery and form a stable SEI film (solid electrolyte interface film), thereby ensuring the stability and cycle performance of the battery. During the formation process, the battery needs to be in contact with negative pressure components, such as negative pressure suction nozzles and negative pressure cups, to ensure a stable negative pressure environment for the battery and promote uniform infiltration of the electrolyte. During the formation process, the contact surface between the battery and the negative pressure suction nozzle and the inner cavity of the negative pressure cup will come into contact with the electrolyte, and components such as lithium salts and organic solvents that may remain in the electrolyte need to be thoroughly cleaned to prevent adverse effects on the battery performance. Residual electrolyte will not only reduce the electrochemical performance of the battery but may also cause safety problems during subsequent charge and discharge processes.

[0003] Currently, the main cleaning technologies include using DMC (dimethyl carbonate) solution and hot water for cleaning. The DMC solution can effectively dissolve the residual electrolyte, and due to its volatile nature, it can dry naturally after cleaning, but it is expensive and the volatile gas is harmful to human health. For hot water and other cleaning solvents that are difficult to volatilize, the negative pressure components need to be left standing in a drying room for a long time after cleaning to ensure complete evaporation of the water. The drying process is relatively time-consuming and the drying efficiency is low. Utility Model Content

[0004] An embodiment of this application discloses a drying mechanism for a negative pressure component, which can quickly dry the negative pressure component cleaned with a cleaning solvent that is not easy to volatilize by using heated gas.

[0005] To achieve the above object, an embodiment of this application discloses a drying mechanism for a negative pressure component, which is used for a negative pressure component. The negative pressure component includes a plurality of negative pressure cups and a plurality of negative pressure suction nozzles, and the negative pressure suction nozzles are provided on each of the negative pressure cups. The drying mechanism for the negative pressure component includes:

[0006] A air supply component, the air supply component includes an air blower, a heater, and a first air inlet pipe. The air blower is connected to the inlet of the heater, the first end of the first air inlet pipe is connected to the outlet of the heater, and the second end of the first air inlet pipe communicates with the negative pressure cup.

[0007] As an alternative embodiment, the negative pressure component drying mechanism further includes an exhaust component, the exhaust component includes a gas collecting member and an exhaust device, the suction nozzle is connected to the gas collecting member, and the gas collecting member is communicated with the exhaust device, so that the gas entering the negative pressure cup can enter the gas collecting member through the negative pressure suction nozzle and be discharged by the exhaust device.

[0008] As an alternative embodiment, the air supply component further includes a second intake pipe and a connecting pipe. The first end of the second intake pipe is connected to the outlet of the heater, the second end of the second intake pipe is connected to the first end of the connecting pipe, the second end of the connecting pipe extends into the gas collecting member, the negative pressure suction nozzle can extend into the gas collecting member, and the second end of the connecting pipe corresponds to the part of the negative pressure suction nozzle extending into the gas collecting member in position.

[0009] As an alternative embodiment, the air supply component further includes a diverter. The inlet of the diverter is connected to the outlet of the heater, the first end of the first intake pipe is connected to one outlet of the diverter, and the first end of the second intake pipe is connected to the other outlet of the diverter.

[0010] As an alternative embodiment, there are a plurality of connecting pipes, and each connecting pipe is arranged corresponding to the position of each negative pressure suction nozzle.

[0011] As an alternative embodiment, the air supply component further includes a connecting and converging pipe. The second end of the second intake pipe is connected to the connecting and converging pipe, and the first end of each connecting pipe is connected to the connecting and converging pipe.

[0012] As an alternative embodiment, connecting pipes are provided on the side walls of the gas collecting member on both opposite sides of the negative pressure suction nozzle.

[0013] As an alternative embodiment, a nozzle is provided at the second end of the connecting pipe, and the nozzle of the nozzle corresponds to the part of the negative pressure suction nozzle extending into the gas collecting member in position.

[0014] As an alternative embodiment, an installation hole is provided on the upper surface of the gas collecting member, and the negative pressure suction nozzle is provided with a convex portion, so that when the negative pressure suction nozzle extends into the gas collecting member through the installation hole, the convex portion can abut against the gas collecting member.

[0015] As an alternative embodiment, the negative pressure component drying mechanism further includes a sealing component. The sealing component is arranged on the gas collecting member. When the negative pressure suction nozzle extends into the gas collecting member through the installation hole, the sealing component can seal the gap between the negative pressure suction nozzle and the gas collecting member.

[0016] As an alternative embodiment, the sealing assembly includes a mounting base and a sealing ring. The mounting base is disposed on the upper surface of the gas collecting member, and the outer ring of the sealing ring is fixedly connected to the inner surface of the mounting base. When the protruding portion of the negative pressure suction nozzle abuts against the upper surface of the gas collecting member, the inner ring of the sealing ring can abut against the protruding portion of the negative pressure suction nozzle.

[0017] As an alternative embodiment, the inner surface of the mounting base is a concave arc surface, and the outer ring of the sealing ring is fixedly connected to the inner surface of the mounting base.

[0018] As an alternative embodiment, the sealing ring is of a hollow structure.

[0019] As an alternative embodiment, the drying mechanism of the negative pressure assembly further includes a vacuum pumping assembly. Before the negative pressure suction nozzle extends into the gas collecting member, the vacuum pumping assembly can evacuate the sealing ring, so that the negative pressure suction nozzle can pass through the gap formed by the inner ring of the sealing ring and extend into the gas collecting member.

[0020] As an alternative embodiment, the vacuum pumping assembly includes a vacuum generator, a connecting pipe, a negative pressure pneumatic control valve, and a vacuum pipe. The vacuum generator is connected to the first end of the connecting pipe, the second end of the connecting pipe is connected to the first end of the vacuum pipe, the second end of the vacuum pipe communicates with the inner cavity of the sealing ring, and the negative pressure pneumatic control valve is disposed on the connecting pipe so that when the negative pressure pneumatic control valve is opened, the vacuum generator can evacuate the sealing ring.

[0021] As an alternative embodiment, there are multiple sealing assemblies, each sealing assembly is provided corresponding to each negative pressure suction nozzle, there are multiple vacuum pipes, and each vacuum pipe corresponds to communicate with the inner cavity of each sealing ring.

[0022] As an alternative embodiment, the vacuum pumping assembly further includes a vacuum manifold. One end of the vacuum manifold is connected to the second end of the connecting pipe, and the first end of the vacuum pipe is connected to the vacuum manifold.

[0023] As an alternative embodiment, the vacuum pumping assembly further includes a positive pressure pneumatic control valve. The positive pressure pneumatic control valve is connected to the vacuum manifold so that when compressed gas is introduced from the positive pressure pneumatic control valve, the sealing ring expands.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] The drying mechanism for the negative pressure component provided by the embodiment of the present application is used for the negative pressure component. The negative pressure component includes a plurality of negative pressure cups and a plurality of negative pressure suction nozzles. Each negative pressure cup is provided with a negative pressure suction nozzle. The drying mechanism for the negative pressure component includes a air supply component. The air supply component includes an air blower, a heater, and a first air inlet pipe. The air blower is connected to the inlet of the heater. The first end of the first air inlet pipe is connected to the outlet of the heater. The second end of the first air inlet pipe communicates with the negative pressure cup. The air supply component passes the heated gas into the negative pressure cup through the first air inlet pipe by the air blower and discharges it from the negative pressure suction nozzle, forming a gas flow path, quickly drying the negative pressure component cleaned with a non-volatile cleaning solvent, improving the drying efficiency and effect, and ensuring the dryness of the negative pressure component. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of the drying mechanism for the negative pressure component disclosed in the embodiment of the present application;

[0028] Figure 2 is Figure 1 Cross-sectional view taken along line A-A in

[0029] Figure 3 is Figure 2 Partial enlarged view at position D in

[0030] Figure 4 is Figure 1 Cross-sectional view taken along line B-B in

[0031] Figure 5 is Figure 4 Partial enlarged view at position E in

[0032] Figure 6 is Figure 1 Cross-sectional view taken along line C-C in

[0033] Figure 7 is Figure 6 Partial enlarged view at position F in

[0034] Explanation of the reference numerals:

[0035] 100 - Negative pressure component drying mechanism; 1 - Air supply component; 11 - Air blower; 12 - Heater; 13 - First intake pipe; 2 - Exhaust component; 21 - Air collecting part; 21a - Mounting hole; 22 - Exhaust fan; 23 - Shunt; 231 - Second intake pipe; 24 - Connecting manifold; 25 - Connecting pipe; 251 - Nozzle; 3 - Sealing component; 31 - Mounting seat; 32 - Sealing ring; 4 - Vacuum pumping component; 41 - Vacuum generator; 42 - Connecting pipe; 43 - Negative pressure pneumatic control valve; 44 - Vacuum manifold; 45 - Vacuum pipe; 46 - Positive pressure pneumatic control valve; 5 - Negative pressure component; 51 - Negative pressure cup; 52 - Negative pressure suction nozzle; 52a - Protrusion; 53 - Negative pressure cup manifold. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, rather than to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0038] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the terms "mount", "set", "provided with", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0040] In addition, terms such as "first", "second", etc. are mainly used to distinguish different devices, components or parts (specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components or parts. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In the technical field of lithium battery manufacturing equipment, the formation process is one of the key steps in lithium battery manufacturing. Formation is the first charge and discharge of the battery through a specific electrochemical process, and its purpose is to activate the positive and negative electrode materials of the battery to form a stable SEI film (solid electrolyte interface film), thereby ensuring the stability and cycle performance of the battery. During the formation process of lithium batteries, the generated gas is not only harmful to the human body but also causes the lithium battery to expand, affecting the safety of the lithium battery. Therefore, the battery needs to be in contact with a negative pressure suction nozzle, and the inside of the negative pressure component is evacuated through the inlet of the manifold on the negative pressure component, thereby ensuring a stable negative pressure environment for the battery and promoting the uniform infiltration of the electrolyte in the battery. The gas sucked by negative pressure may be mixed with the electrolyte, and the electrolyte remaining in the negative pressure component is likely to form crystals, thereby causing blockage of the negative pressure component. Components such as lithium salts and organic solvents that may remain in the electrolyte need to be thoroughly cleaned to prevent adverse effects on the battery performance in subsequent processes. The residue of the electrolyte will not only reduce the electrochemical performance of the battery but may also cause safety problems during subsequent charge and discharge processes.

[0042] Currently, the main cleaning technologies include using DMC solution (dimethyl carbonate) and hot water for cleaning. The DMC solution can effectively dissolve the electrolyte residue, and due to its volatile nature, it can dry naturally after cleaning, but it is expensive and the volatile gas is harmful to human health. After cleaning with hot water and other non-volatile cleaning solvents, the negative pressure component needs to be left standing in a drying room for a long time to ensure that the water completely evaporates. The drying process is relatively time-consuming and the drying efficiency is low.

[0043] Based on this, the embodiment of the present application discloses a drying mechanism for a negative pressure component. The air supply component transports the heated gas into the negative pressure component, and the gas is discharged from the negative pressure suction nozzle, forming a gas flow path, quickly drying the negative pressure component cleaned with a non-volatile cleaning solvent, improving the drying efficiency and effect, and ensuring the dryness of the negative pressure component.

[0044] The technical solution of the present application will be further described below in conjunction with the embodiments and the drawings.

[0045] Please refer to Figure 1 , Figure 1Schematic diagram of the drying mechanism 100 of the negative pressure component disclosed in the embodiments of the present application. The embodiments of the present application disclose a drying mechanism 100 for a negative pressure component 5. The negative pressure component 5 includes a plurality of negative pressure cups 51, a plurality of negative pressure suction nozzles 52, and a negative pressure cup manifold 53. The negative pressure cup manifold 53 is communicated with the plurality of negative pressure cups 51, and a negative pressure suction nozzle 52 is provided on each negative pressure cup 51. The drying mechanism 100 of the negative pressure component includes a blowing component 1. The blowing component 1 includes a blower 11, a heater 12, and a first intake pipe 13. The blower 11 is connected to the inlet of the heater 12. The first end of the first intake pipe 13 is connected to the outlet of the heater 12, and the second end of the first intake pipe 13 is connected to the negative pressure cup manifold 53. In this way, the blower 11 passes the heated gas into the negative pressure cup 51 through the first intake pipe 13 and discharges it from the negative pressure suction nozzle 52, forming a gas flow path, quickly drying the negative pressure component 5 cleaned with a non-volatile cleaning solvent, improving the drying efficiency and effect, and ensuring the dryness of the negative pressure component 5.

[0046] Combined with Figure 1 , as an optional implementation manner, the drying mechanism 100 of the negative pressure component further includes an exhaust component 2. The exhaust component 2 includes a gas collecting member 21 and an exhaust fan 22. The suction nozzle is connected to the gas collecting member 21, and the gas collecting member 21 is communicated with the exhaust fan 22, so that the gas entering the negative pressure cup 51 can enter the gas collecting member 21 through the negative pressure suction nozzle 52 and be discharged by the exhaust fan 22. The hot gas flowing through the negative pressure component 5 enters the gas collecting member 21, and the exhaust fan 22 provides power to discharge the gas to other waste gas collection devices. In this way, the simultaneous action of the blower 11 and the exhaust fan 22 forms a complete gas flow path, ensuring the continuity and efficiency of the drying process, avoiding the backflow of moisture, enhancing the drying effect, and facilitating the collection of the gas flowing out after drying to prevent environmental pollution.

[0047] It should be noted that the blower 11 and the exhaust fan 22 can be a fan or any device that can possibly convey air. The present embodiment does not limit this.

[0048] When the negative pressure suction nozzle 52 contacts the battery, the end and outer wall of the negative pressure suction nozzle 52 close to the battery may come into contact with the electrolyte. Combined with Figure 1, in some embodiments, the air supply assembly 1 further includes a second intake pipe 231 and a connecting pipe 25. The first end of the second intake pipe 231 is connected to the outlet of the heater 12, the second end of the second intake pipe 231 is connected to the first end of the connecting pipe 25, the second end of the connecting pipe 25 extends into the air collecting member 21, the negative pressure suction nozzle 52 can extend into the air collecting member 21, and the second end of the connecting pipe 25 corresponds to the position of the part of the negative pressure suction nozzle 52 extending into the air collecting member 21. The heated gas passes through the second intake pipe 231, flows through the connecting pipe 25, and is discharged from the second end of the connecting pipe 25 to dry the part of the negative pressure suction nozzle 52 extending into the air collecting member 21. This enables some of the heated gas to be directed to dry the part of the negative pressure suction nozzle 52 extending into the air collecting member 21, which not only improves the utilization efficiency of thermal energy and speeds up the drying speed, but also ensures the drying of the negative pressure suction nozzle 52.

[0049] It can be understood that the first intake pipe 13 and the second intake pipe 231 can be connected to the heater 12 separately or can be connected to the heater 12 through a diverter 23. Refer to Figure 1 , optionally, the air supply assembly 1 further includes a diverter 23. The inlet of the diverter 23 is connected to the outlet of the heater 12, the first end of the first intake pipe 13 is connected to one outlet of the diverter 23, and the first end of the second intake pipe 231 is connected to the other outlet of the diverter 23. Through the diverter 23, the heated gas can be more evenly distributed into the first intake pipe 13 and the second intake pipe 231, ensuring that the gas entering the air collecting member 21 and the negative pressure cup manifold 53 is distributed as evenly as possible, and improving the drying efficiency of the inside of the negative pressure assembly 5 and the negative pressure suction nozzle 52.

[0050] Refer to Figure 1 , in some possible embodiments, since there are multiple negative pressure suction nozzles 52, in order to dry each negative pressure suction nozzle 52, there are multiple connecting pipes 25, and the positions of the connecting pipes 25 correspond to the positions of the negative pressure suction nozzles 52. In this way, it is ensured that each negative pressure suction nozzle 52 can be dried by the gas discharged from the corresponding connecting pipe 25, improving the drying uniformity and efficiency.

[0051] Combined with Figure 1 , as an optional embodiment, the air supply assembly 1 further includes a connecting and converging pipe 24. The second end of the second intake pipe 231 is connected to the connecting and converging pipe 24, and the first ends of the connecting pipes 25 are connected to the connecting and converging pipe 24. First, the gas in the second intake pipe 231 is collected in the connecting and converging pipe 24, and then each negative pressure suction nozzle 52 is dried through each connecting pipe 25. This not only provides enough flow space for the hot air, avoids the situation of overheating or incomplete drying of individual negative pressure suction nozzles 52, improves the overall drying effect, but also makes the connection method between the second intake pipe 231 and the connecting pipes 25 simpler, and the disassembly and replacement of the second intake pipe 231 are more convenient.

[0052] Please refer to Figures 1 to 3 , Figure 2 which is Figure 1 the sectional view taken along line A-A in Figure 3 and Figure 2 the partial enlarged view at position D in

[0053] Optionally, referring to Figure 3 , a nozzle 251 is provided at the second end of the connecting pipe 25, and the nozzle of the nozzle 251 corresponds to the position of the part of the negative pressure suction nozzle 52 extending into the air collecting member 21. The nozzle 251 utilizes the flow of gas and the action of pressure to accelerate and eject the gas through the fine holes or openings of the nozzle. When the gas passes through the fine holes of the nozzle, it will be accelerated to form a high-speed flowing jet. The nozzle of the nozzle 251 precisely corresponds to the part of the negative pressure suction nozzle 52 extending into the air collecting member 21, realizing the precise injection of hot air and enabling the gas to be evenly ejected, improving the concentration of hot air, the utilization rate of heat energy, and the drying efficiency.

[0054] Combined with Figure 3 , an installation hole 21a is provided on the upper surface of the air collecting member 21, and the negative pressure suction nozzle 52 is provided with a protrusion 52a, so that when the negative pressure suction nozzle 52 extends into the air collecting member 21 through the installation hole 21a, the protrusion 52a can abut against the air collecting member 21. In this way, after the part of the negative pressure suction nozzle 52 below the protrusion 52a can enter the air collecting member 21 through the installation hole 21a, the negative pressure suction nozzle 52 will not continue to extend, ensuring that the part of the negative pressure suction nozzle 52 below the protrusion 52a corresponds precisely to the position of the second end of the connecting pipe 25, improving the assembly accuracy of the negative pressure assembly 5 and the drying mechanism, and ensuring the smooth progress of the drying process.

[0055] It can be understood that after the negative pressure suction nozzle 52 extends into the air collecting member 21, there may be a gap between the negative pressure suction nozzle 52 and the air collecting member 21, and the gas in the air collecting member 21 may leak out from the gap. As a possible implementation, combined with Figures 1 to 5 , Figure 4 which is Figure 1 the sectional view taken along line B-B in Figure 5 and Figure 4Partial enlarged view at E in the figure. The negative pressure component drying mechanism 100 further includes a sealing component 3. The sealing component 3 is arranged on the air collecting component 21. When the negative pressure suction nozzle 52 extends into the air collecting component 21, the sealing component 3 can seal the gap between the negative pressure suction nozzle 52 and the air collecting component 21. In this way, the sealing component 3 is connected to the air collecting component 21 and abuts against the outer side wall of the convex portion 52a of the negative pressure suction nozzle 52, so that the leaked gas will not leak from here, achieving a sealing effect. The gas can only enter the exhaust device 22 through the air collecting component 21 and be discharged, with a better heat circulation effect and higher drying efficiency.

[0056] It can be understood that the sealing component 3 includes a sealing ring 32. The sealing ring 32 is fixed on the air collecting component 21. When the negative pressure suction nozzle 52 extends into the air collecting component 21, the sealing ring 32 can be squeezed to achieve a sealing effect.

[0057] Specifically, in combination with Figure 3 and Figure 5 , the sealing component 3 further includes a mounting seat 31. The mounting seat 31 is arranged on the upper surface of the air collecting component 21. The outer ring of the sealing ring 32 is fixedly connected to the inner surface of the mounting seat 31. When the convex portion 52a of the negative pressure suction nozzle 52 abuts against the upper surface of the air collecting component 21, the inner ring of the sealing ring 32 can abut against the convex portion 52a of the negative pressure suction nozzle 52. When the negative pressure suction nozzle 52 extends into the air collecting component 21, the outer side wall of the convex portion 52a of the negative pressure suction nozzle 52 fits with the inner ring of the sealing ring 32. Until the lower surface of the convex portion 52a of the negative pressure suction nozzle 52 abuts against the upper surface of the air collecting component 21, the inner ring of the sealing ring 32 is in interference fit with the convex portion 52a of the negative pressure suction nozzle 52 to achieve a sealing effect. In this way, when the outer side wall of the convex portion 52a of the negative pressure suction nozzle 52 squeezes the sealing ring 32, the sealing ring 32 will not be displaced, ensuring the close contact between the negative pressure suction nozzle 52 and the sealing ring 32 and improving the sealing performance during the drying process.

[0058] It can be understood that the mounting seat 31 and the air collecting component 21 can be fixedly connected or connected by screw fitting. In the first possible implementation manner, the mounting seat 31 and the air collecting component 21 are fixedly connected by methods such as welding. The mounting seat 31 and the air collecting component 21 are firmly connected and will not cause the mounting seat 31 to be displaced due to the pressurization of the sealing ring 32. In the second possible implementation manner, the mounting seat 31 and the air collecting component 21 are respectively provided with threaded holes of the same diameter. The screw of the nut is used to lock with the threads on the threaded holes of the mounting seat 31 and the air collecting component 21 to realize the connection between the mounting seat 31 and the air collecting component 21. Such a screw fitting makes the mounting seat 31 and the air collecting component 21 connected tightly and the mounting seat 31 can be replaced at any time, and it is also more convenient to disassemble the sealing ring 32. This embodiment does not make any limitation in this regard.

[0059] As an alternative implementation manner, the inner surface of the mounting seat 31 in contact with the sealing ring 32 can be a convex arc surface, a concave arc surface, a smooth circular ring surface, etc. Specifically, refer toFigure 3 , the inner surface of the mounting seat 31 is a concave arc surface, and the outer ring of the sealing ring 32 is fixedly connected to the outer surface of the mounting seat 31. In this way, the outside of the sealing ring 32 can be clamped on the concave arc surface of the mounting seat 31, and it is not easy to shift, ensuring the close contact between the mounting seat 31 and the sealing ring 32, and further improving the sealing performance during the drying process.

[0060] Optionally, the sealing ring 32 is a hollow structure. In this way, when the negative pressure suction nozzle 52 extends into the air collecting member 21, the extrusion effect is better when the convex portion 52a of the negative pressure suction nozzle 52 presses the sealing ring 32. The mounting seat 31 and the convex portion 52a of the negative pressure suction nozzle 52 press the sealing ring 32 together, so that the air inside the sealing ring 32 flows, so that the sealing ring 32 can fill the gap between the two, making the gap between the two as small as possible, and then achieving a better sealing effect, and also reducing the weight of the sealing ring 32 and reducing the material cost.

[0061] It can be understood that the sealing ring 32 is made of deformable materials such as silica gel, rubber or polytetrafluoroethylene. These materials can effectively fill the gap through extrusion deformation. The silica gel sealing ring 32 has good high temperature resistance and weather resistance, and is suitable for the sealing requirements in high temperature environments; the rubber sealing ring 32 has good elasticity and sealing performance; the polytetrafluoroethylene sealing ring 32 has excellent chemical corrosion resistance and high temperature resistance, and is suitable for the sealing requirements of high temperature, high pressure and strong corrosive media. This embodiment does not make any limitations in this regard.

[0062] In some possible embodiments, in combination with Figure 3 , the negative pressure component drying mechanism 100 further includes a vacuum pumping component 4. Before the negative pressure suction nozzle 52 extends into the air collecting member 21, the vacuum pumping component 4 can evacuate the sealing ring 32, so that the negative pressure suction nozzle 52 can pass through the gap formed by the inner ring of the sealing ring 32 and extend into the air collecting member 21. In this way, after the inner cavity of the sealing ring 32 is evacuated by the vacuum pumping component 4, the gap formed by the inner ring of the sealing ring 32 is larger. On the one hand, it makes it easier for the negative pressure suction nozzle 52 to extend into the air collecting member 21. On the other hand, after the drying is completed, the inner cavity of the sealing ring 32 is evacuated, and it is easier for the negative pressure suction nozzle 52 to move out of the air collecting member 21, simplifying the operation process and improving the work efficiency.

[0063] The vacuum pumping component 4 can evacuate the sealing ring through devices such as a vacuum generator 41, a mechanical pump, and a molecular pump that can extract gas.

[0064] In combination with Figures 1 to 3, in some embodiments, the vacuum pumping assembly 4 includes a vacuum generator 41, a connecting pipe 42, a negative pressure pneumatic control valve 43, and a vacuum pipe 45. The vacuum generator 41 is connected to the first end of the connecting pipe 42. The second end of the connecting pipe 42 is connected to the first end of the vacuum pipe 45. The second end of the vacuum pipe 45 communicates with the inner cavity of the sealing ring 32. The negative pressure pneumatic control valve 43 is disposed on the connecting pipe 42 such that when the negative pressure pneumatic control valve 43 is opened, the vacuum generator 41 can pump the sealing ring 32. Vacuum is pumped using the vacuum generator 41. Compressed air is used to generate negative pressure by high-speed jetting through a nozzle. When the compressed air passes through the nozzle, due to the contraction effect of the nozzle, the air velocity increases. The increase in velocity leads to a decrease in pressure, thereby forming a negative pressure at the nozzle outlet. The vacuum pumping operation is simple and efficient. The opening and closing of the vacuum pumping assembly 4 are achieved by controlling the switches of the vacuum generator 41 and the negative pressure pneumatic control valve 43, ensuring the controllability and reliability of the vacuum pumping process and improving the efficiency and accuracy of assembly.

[0065] Optionally, there are multiple sealing assemblies 3, and each sealing assembly 3 corresponds to each negative pressure suction nozzle 52. There are multiple vacuum pipes 45, and each vacuum pipe 45 corresponds to and communicates with the inner cavity of each sealing ring 32. In this way, it is ensured that each negative pressure suction nozzle 52 can be effectively sealed and evacuated, improving the overall drying effect.

[0066] Refer to Figure 1 , as an alternative embodiment, the vacuum pumping assembly 4 further includes a vacuum manifold 44. One end of the vacuum manifold 44 is connected to the second end of the connecting pipe 42, and the first end of the vacuum pipe 45 is connected to the vacuum manifold 44. Through the vacuum manifold 44, the vacuum generator 41 and the connecting pipe 42 are connected to each sealing ring 32, enabling each sealing ring 32 to be evacuated more evenly. At the same time, the number of connecting pipe paths between the connecting pipe 42 and the vacuum pipes 45 is reduced. The communication between each vacuum pipe 45 and the connecting pipe 42 is achieved through one vacuum manifold 44, improving the compactness and reliability of the overall structure.

[0067] It can be understood that after the negative pressure suction nozzle 52 extends into the gas collecting member 21, the vacuum generator 41 and the negative pressure pneumatic control valve 43 can be closed, causing the sealing ring 32 to return to its original state and squeezing the convex portion 52a of the negative pressure suction nozzle 52 to achieve a sealing effect. However, in this case, the recovery time of the sealing ring 32 is relatively long and the efficiency is low. Refer to Figures 1 to 7 , Figure 6 For Figure 1 the cross-sectional view taken along C-C in Figure 7 For Figure 6Partial enlarged view at F in the figure. The vacuum pumping assembly 4 further includes a positive pressure pneumatic control valve 46. The positive pressure pneumatic control valve 46 is connected to the vacuum manifold 44. When compressed gas is introduced into the positive pressure pneumatic control valve 46 through a trachea from an external compressed air tank, the sealing ring 32 expands. In this way, when the protruding portion 52a of the negative pressure suction nozzle 52 abuts against the upper surface of the gas collecting member 21, the positive pressure pneumatic control valve 46 can control the rapid expansion of the sealing ring 32 to squeeze the negative pressure suction nozzle 52, so as to fully seal the gap between the negative pressure suction nozzle 52 and the gas collecting member 21, which not only improves the sealing efficiency but also the sealing effect.

[0068] When drying the negative pressure assembly 5, the vacuum generator 41 operates, the negative pressure pneumatic control valve 43 is opened, and the positive pressure pneumatic control valve 46 is closed, so that a negative pressure cavity is formed in the vacuum manifold 44. Through the vacuum tube 45, each sealing ring 32 corresponding to each vacuum tube 45 contracts. The negative pressure assembly 5 moves relative to the negative pressure assembly drying mechanism 100, so that the negative pressure suction nozzle 52 extends into the gas collecting member 21 until the lower surface of the protruding portion 52a of the negative pressure suction nozzle 52 abuts against the upper surface of the gas collecting member 21. At this time, the negative pressure pneumatic control valve 43 is closed, and the positive pressure pneumatic control valve 46 is opened. Compressed gas is introduced into the vacuum tube 45 through the positive pressure pneumatic control valve 46. The compressed gas flows into the inner cavity of the sealing ring 32 through the vacuum tube 45, so that the sealing ring 32 expands. The inner ring of the sealing ring 32 abuts against the protruding portion 52a of the negative pressure suction nozzle 52, so as to seal the gap between the negative pressure suction nozzle 52 and the gas collecting member 21 and fix the negative pressure suction nozzle 52. The air blower 11 and the exhaust fan 22 are turned on. After the gas is heated, part of the gas flows through the negative pressure cup manifold 53 through the first intake pipe 13 into the negative pressure cup 51 and is discharged from the negative pressure suction nozzle 52 into the gas collecting member 21. Another part of the gas enters the communication manifold 24 through the second intake pipe 231, and then the gas is sprayed onto the part of the negative pressure suction nozzle 52 extending into the gas collecting member 21 through the nozzles 251 on each communication pipe 25 to further dry the negative pressure suction nozzle 52. All the dried gas is discharged from the air blower 11 into the subsequent waste gas collection device in the gas collecting member 21 to complete the drying of the negative pressure assembly 5.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drying mechanism for a negative pressure component, which is used for the negative pressure component. The negative pressure component includes a plurality of negative pressure cups and a plurality of negative pressure suction nozzles, and the negative pressure suction nozzles are provided on each of the negative pressure cups. It is characterized in that, The drying mechanism of the negative pressure component includes: A air supply component, which includes an air blower, a heater and a first air inlet pipe. The air blower is connected to the inlet of the heater. The first end of the first air inlet pipe is connected to the outlet of the heater, and the second end of the first air inlet pipe communicates with the negative pressure cup.

2. The drying mechanism of the negative pressure component according to claim 1, wherein, The drying mechanism of the negative pressure component further includes an exhaust component, which includes a gas collecting part and an exhaust blower. The negative pressure suction nozzle is connected to the gas collecting part, and the gas collecting part communicates with the exhaust blower, so that the gas entering the negative pressure cup can enter the gas collecting part through the negative pressure suction nozzle and be discharged by the exhaust blower.

3. The drying mechanism of the negative pressure component according to claim 2, characterized in that, The air supply component further includes a second air inlet pipe and a connecting pipe. The first end of the second air inlet pipe is connected to the outlet of the heater. The second end of the second air inlet pipe is connected to the first end of the connecting pipe. The second end of the connecting pipe extends into the gas collecting part. The negative pressure suction nozzle can extend into the gas collecting part, and the second end of the connecting pipe corresponds to the part of the negative pressure suction nozzle extending into the gas collecting part in position.

4. The drying mechanism of the negative pressure component according to claim 3, characterized in that, There are multiple connecting pipes, and each connecting pipe is arranged corresponding to the position of each negative pressure suction nozzle. The air supply component further includes a connecting manifold. The second end of the second air inlet pipe is connected to the connecting manifold, and the first end of each connecting pipe is connected to the connecting manifold. And on the side walls of the gas collecting part on both sides of each negative pressure suction nozzle, connecting pipes are provided.

5. The drying mechanism of the negative pressure component according to claim 4, characterized in that, The second end of the connecting pipe is provided with a nozzle, and the nozzle of the nozzle corresponds to the part of the negative pressure suction nozzle extending into the gas collecting part in position.

6. The drying mechanism of the negative pressure component according to claim 3, characterized in that, The upper surface of the gas collecting part is provided with a mounting hole, and the negative pressure suction nozzle is provided with a convex part, so that when the negative pressure suction nozzle extends into the gas collecting part through the mounting hole, the convex part can abut against the gas collecting part.

7. The drying mechanism of the negative pressure component according to claim 6, characterized in that, The drying mechanism of the negative pressure component further includes a sealing component, which is arranged on the gas collecting part, so that when the negative pressure suction nozzle extends into the gas collecting part through the mounting hole, the sealing component can seal the gap between the negative pressure suction nozzle and the gas collecting part.

8. The drying mechanism of the negative pressure component according to claim 7, characterized in that The sealing component includes a mounting seat and a sealing ring. The mounting seat is arranged on the upper surface of the gas collecting part. The outer ring of the sealing ring is fixedly connected to the inner surface of the mounting seat. When the convex part of the negative pressure suction nozzle abuts against the upper surface of the gas collecting part, the inner ring of the sealing ring can abut against the convex part of the negative pressure suction nozzle.

9. The drying mechanism of the negative pressure component according to claim 8, characterized in that, The inner surface of the mounting seat is a concave arc surface, and the outer ring of the sealing ring is fixedly connected to the inner surface of the mounting seat.

10. The drying mechanism of the negative pressure component according to claim 8, characterized in that, The sealing ring is of a hollow structure.

11. The drying mechanism of the negative pressure component according to claim 10, characterized in that, The drying mechanism of the negative pressure component further includes a vacuum pumping component. Before the negative pressure suction nozzle extends into the gas collecting part, the vacuum pumping component can pump vacuum for the sealing ring, so that the negative pressure suction nozzle can pass through the gap formed by the inner ring of the sealing ring and extend into the gas collecting part; The vacuum pumping assembly includes a vacuum generator, a connecting pipe, a negative pressure pneumatic control valve, and a vacuum pipe. The vacuum generator is connected to the first end of the connecting pipe. The second end of the connecting pipe is connected to the first end of the vacuum pipe. The second end of the vacuum pipe communicates with the inner cavity of the sealing ring. The negative pressure pneumatic control valve is arranged on the connecting pipe so that when the negative pressure pneumatic control valve is opened, the vacuum generator can pump the vacuum of the sealing ring. There are multiple sealing assemblies, and each sealing assembly is correspondingly arranged for each negative pressure suction nozzle. There are multiple vacuum pipes, and each vacuum pipe correspondingly communicates with the inner cavity of each sealing ring. The vacuum pumping assembly further includes a vacuum manifold. One end of the vacuum manifold is connected to the second end of the connecting pipe, and the first end of the vacuum pipe is connected to the vacuum manifold. The vacuum pumping assembly further includes a positive pressure pneumatic control valve. The positive pressure pneumatic control valve is connected to the vacuum manifold so that when compressed gas is introduced from the positive pressure pneumatic control valve, the sealing ring expands.

Images