A liquid injection nozzle vortex cleaning device and a liquid injection nozzle vortex cleaning method

Abstract

The application discloses a liquid injection nozzle vortex cleaning device and a liquid injection nozzle vortex cleaning method, which comprises a vortex cleaning assembly, the vortex cleaning assembly comprises a vortex cleaning block, the vortex cleaning block is provided with a block liquid inlet and a block air inlet; a liquid storage assembly comprises a liquid storage cylinder for storing cleaning liquid; a joint mechanism is connected with the liquid storage cylinder, and the joint mechanism can be used for conveying the cleaning liquid into the liquid storage cylinder; an air path butt joint mechanism comprises an air inlet butt joint block, and the air inlet butt joint block is used for being connected with an air source of a liquid injection station; an air-liquid transmission assembly has an air path channel and a liquid path channel, an input end of the liquid path channel is connected with the liquid storage cylinder, and an output end of the liquid path channel is connected with the block liquid inlet of the vortex cleaning block; an input end of the air path channel is connected with the air path butt joint mechanism, and an output end of the air path channel is connected with the block air inlet of the vortex cleaning block; and a residual liquid assembly is connected with the vortex cleaning block and is used for storing waste cleaning liquid. The application has the advantages of high cleaning efficiency and good cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology, and in particular to a liquid injection nozzle vortex cleaning device and a liquid injection nozzle vortex cleaning method. Background Technology

[0002] In the lithium battery manufacturing process, the electrolyte injection step involves injecting precisely measured amounts of electrolyte into the battery casing through an injection nozzle. After injection, during the lifting or moving of the nozzle, a small amount of electrolyte inevitably remains or drips from its outer wall and tip. Electrolyte is characterized by its tendency to crystallize and its strong corrosive properties. The solidification and crystallization of electrolyte residue in the injection nozzle can lead to problems such as nozzle blockage, battery contamination, and equipment corrosion.

[0003] Currently, most production lines address the cleaning of injection nozzles by manually wiping them periodically, using high-pressure air guns to blow them clean, or disassembling, cleaning, and reassembling the nozzles. However, these cleaning methods have low automation levels, long cleaning cycles, safety risks, and high labor costs. Furthermore, prolonged scraping of the injection nozzles can lead to surface wear, generating metal shavings and introducing new sources of contamination.

[0004] In view of this, the purpose of the present invention is to provide a new technical solution to solve the existing technical problems. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a vortex cleaning device and a vortex cleaning method for injection nozzles, which solves the problems of low cleaning efficiency and long cleaning cycle of existing injection nozzles.

[0006] The technical solution adopted by this invention to solve its technical problem is: A vortex cleaning device for a liquid injection nozzle, comprising: A vortex cleaning assembly for cleaning a liquid injection nozzle includes a vortex cleaning block, wherein the vortex cleaning block is provided with a block liquid inlet and a block air inlet. Liquid storage assembly, including a liquid storage tank for storing cleaning fluid; A connector mechanism is connected to a liquid storage tank, through which cleaning fluid can be delivered into the liquid storage tank; The gas connection mechanism includes an air inlet connection block, which is used to connect to the gas source of the injection station; A gas-liquid transmission assembly has a gas passage and a liquid passage. The input end of the liquid passage is connected to the liquid storage cylinder, and the output end of the liquid passage is connected to the liquid inlet of the vortex cleaning block. The input end of the gas passage is connected to the gas connection mechanism, and the output end of the gas passage is connected to the air inlet of the vortex cleaning block. A residual liquid assembly, which is connected to the vortex cleaning block, is used to store cleaning waste liquid.

[0007] In the above structure, a piston is provided inside the liquid storage cylinder. The piston circumferentially contacts the inner wall of the liquid storage cylinder and can slide along its axial direction within the liquid storage cylinder. A cylinder air inlet is provided at one end of the liquid storage cylinder. A cylinder drain port and a cylinder inlet port are provided at the end of the liquid storage cylinder away from the cylinder air inlet port. The cylinder air inlet port is connected to the air inlet docking block. The cylinder inlet port is connected to the connector mechanism. The cylinder drain port is connected to the liquid passage.

[0008] In the above structure, an adjusting screw is provided on the end face of the liquid storage cylinder near the cylinder air inlet. The adjusting screw is threaded to the liquid storage cylinder and is coaxially arranged with the liquid storage cylinder. One end of the adjusting screw extends into the liquid storage cylinder, and the length of the adjusting screw extending into the liquid storage cylinder is adjustable.

[0009] In the above structure, the upper end face of the vortex cleaning block is provided with a vortex cleaning port for cleaning the injection nozzle, and the block liquid inlet and block air inlet are respectively provided on opposite sides of the vortex cleaning block and are both connected to the vortex cleaning port.

[0010] In the above structure, 5. A vortex cleaning device for a liquid injection nozzle according to claim 4, characterized in that: the residual liquid component includes a residual liquid box, the residual liquid box is disposed below the vortex cleaning block, a residual liquid inlet is provided on the upper end face of the residual liquid box, the residual liquid inlet is connected to the vortex cleaning port, a residual liquid outlet is provided on one side of the residual liquid box, and the residual liquid outlet is connected to the connector mechanism.

[0011] In the above structure, the connector mechanism includes a first connector assembly, which includes a first self-locking quick-connect female and a first quick-connect male. The first self-locking quick-connect female is connected to the cylinder inlet, and the first quick-connect male is located below the first self-locking quick-connect female and can be close to and communicate with the first self-locking quick-connect female or be separated from the first self-locking quick-connect female. The first quick-connect male is used to connect to the liquid supply device.

[0012] In the above structure, the gas connection mechanism further includes a gas distribution block and a mechanical valve. The gas distribution block and the air inlet connection block, as well as the air inlet of the liquid storage cylinder and the gas distribution block, are connected by hoses. The mechanical valve is connected to the gas distribution block via a hose, and the mechanical valve is also connected to the gas passage via a hose.

[0013] In the above structure, the gas path docking mechanism further includes a spring drive assembly, which includes a top shaft, a return spring, and a sealing mounting seat. The end face of the liquid storage cylinder away from the cylinder inlet has an installation port. The sealing mounting seat is disposed in the installation port. The top shaft is disposed on the sealing mounting seat and can move axially along the liquid storage cylinder in the installation port. The mechanical valve is disposed on the side of the top shaft away from the liquid storage cylinder. The return spring is sleeved on the side of the top shaft away from the liquid storage cylinder. The top shaft is provided with an abutment part. The sealing mounting seat is provided with an abutment block. One end of the return spring abuts against the abutment part, and the other end abuts against the abutment block. When the piston moves to a position close to the top shaft, it can push the top shaft to move towards the mechanical valve, thereby triggering the mechanical valve.

[0014] In the above structure, the gas-liquid transmission component includes a gas-liquid manifold, in which a first channel and a second channel that are not interconnected are provided. The gas-liquid manifold has a first inlet and a first outlet connected to the first channel. The first inlet is connected to the cylinder drain port, and the first outlet is connected to the block inlet. The first inlet, the first channel, and the first outlet constitute the liquid path channel. The gas-liquid manifold is provided with a second inlet and a second outlet connected to the second channel. The second inlet is connected to the mechanical valve, and the second outlet is connected to the block air inlet. The second inlet, the second channel, and the second outlet constitute the gas path channel.

[0015] In the above structure, the liquid storage assembly further includes a diaphragm valve, and the liquid outlet of the liquid storage cylinder is connected to the diaphragm valve and the diaphragm valve is connected to the first inlet via a hose.

[0016] In the above structure, the connector mechanism includes a second connector assembly, which includes a second self-locking quick-connect female and a second quick-connect male. The second self-locking quick-connect female is connected to the air inlet of the diaphragm valve, and the second quick-connect male is located below the second self-locking quick-connect female and can be close to and communicate with the second self-locking quick-connect female or be separated from the second self-locking quick-connect female. The second quick-connect male is used to connect to the air supply device.

[0017] In the above structure, the connector mechanism further includes a third connector assembly, which includes a third self-locking quick-connect female and a third quick-connect male. The third self-locking quick-connect female is connected to the residual liquid outlet of the residual liquid box, and the third quick-connect male is located below the third self-locking quick-connect female and can be close to and communicate with the third self-locking quick-connect female or be separated from the third self-locking quick-connect female. The third quick-connect male is used to connect to the waste liquid recovery device.

[0018] The above structure also includes a frame, on which the connector mechanism is fixedly mounted. Multiple cleaning modules are mounted on the frame. Each cleaning module includes a set of vortex cleaning components, a set of liquid storage components, a set of residual liquid components, and a set of air path docking mechanisms. Each cleaning module is connected to the connector mechanism.

[0019] This invention also discloses: A method for vortex cleaning of a liquid injection nozzle includes the following steps: S1. First, in the tooling station, the liquid supply device injects the cleaning fluid into the storage tank by introducing positive pressure through the connector mechanism, and then the liquid injection nozzle vortex cleaning device is transferred to the liquid injection station. S2. Next, positive pressure is introduced into the storage tank and the diaphragm valve is opened. The cleaning fluid is forced into the gas-liquid manifold and then transported by the gas-liquid manifold to the vortex cleaning block to clean the injection nozzles in the injection station. The cleaned residual liquid flows into the residual liquid box. S3. After the cleaning fluid in the storage tank is used up, the piston pushes the top shaft close to the mechanical valve and triggers the mechanical valve to open, introducing positive pressure gas into the vortex cleaning block to purge the injection nozzle. S4. After purging, the device is transferred back to the tooling station, and the connector mechanism is reconnected to extract the residual liquid in the residual liquid box into the residual liquid collection device.

[0020] The beneficial effects of this invention are as follows: The vortex cleaning device for injection nozzles utilizes a storage tank to pre-store the cleaning fluid and, in conjunction with a residual liquid assembly, stores the tilted waste liquid. The cleaning fluid can be injected into the storage tank and the waste liquid in the residual liquid box can be discharged into the residual liquid collection device within a tooling station outside the device, without disrupting the device's operating cycle. This achieves an unmanned "injection-lifting-cleaning" cycle, significantly improving production efficiency and safety. The gas-liquid transmission assembly forms relatively independent gas and liquid channels. A connector mechanism that can connect to both gas and liquid channels works in conjunction with the gas-liquid transmission assembly. By controlling different on / off states of the connector mechanism, gas / liquid flow can be controlled, simplifying operation. A vortex cleaning block cleans the injection nozzle. During cleaning, only the cleaning fluid forming the vortex contacts the injection nozzle; there is no manual operation or contact with other solids, effectively reducing the possibility of scratching or abrading the nozzle surface. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 yes Figure 2Enlarged diagram of section A in the middle; Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 5 This is a schematic diagram of the external structure of the liquid storage cylinder of the present invention; Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle DD; Figure 7 yes Figure 2 Schematic diagram of a partial cross-section of the EE; Figure 8 This is a schematic diagram of the cross-sectional structure of the gas-liquid manifold of the present invention; Figure 9 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle FF; Figure 10 yes Figure 9 Enlarged schematic diagram of section B in the middle.

[0023] Figure label: 1. Vortex cleaning block; 11. Vortex cleaning port; 12. Block air inlet; 13. Block liquid inlet; 2. Liquid storage assembly; 21. Liquid storage cylinder; 211. Piston; 212. Cylinder air inlet; 213. Cylinder liquid inlet; 214. Cylinder drain port; 22. Adjusting screw; 23. Diaphragm valve; 24. Mounting port; 3. Connector mechanism; 31. First connector assembly; 311. First self-locking quick-connect female connector; 312. First quick-connect male connector; 32. Second connector assembly; 321. Second self-locking quick-connect female connector; 322. Second quick-connect male connector; 33. Third connector assembly; 331. Third self-locking quick-connect female connector; 332. Third quick-connect male connector; 34. Docking drive cylinder; 4. Gas path docking mechanism; 41. Inlet docking block; 42. Gas distribution block; 43. Mechanical valve; 44. Spring drive assembly; 441. Top shaft; 442. Sealing mounting base; 443. Return spring; 444. Abutment block; 5. Gas-liquid transfer assembly; 51. Gas-liquid manifold; 511. First inlet; 512. First channel; 513. First outlet; 514. Second inlet; 515. Second channel; 516. Second outlet; 52. Liquid channel; 53. Gas channel; 6. Residual liquid assembly; 61. Residual liquid box; 611. Residual liquid inlet; 612. Residual liquid outlet; 7. Frame; 71. Mounting bracket; 72. Sealing plate; 73. Guide sleeve; 74. Mounting plate; 75. Connecting plate; 8. Injection nozzle. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-10 The present invention will be further described below.

[0025] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0026] Reference Figures 1 to 10 This invention provides a vortex cleaning device for injection nozzles, which is applied to the cleaning operation of injection nozzles 8. It can automatically clean the injection nozzles 8 without damaging them. The vortex cleaning device for injection nozzles includes a vortex cleaning component, a liquid storage component 2, a connector mechanism 3, an air path connection mechanism 4, an air-liquid transmission component 5, and a residual liquid component 6. The connector mechanism 3 is connected to the liquid storage component 2 to connect the liquid supply device and the liquid storage component 2, so that the liquid supply device can inject the cleaning fluid into the liquid storage component 2 for storage; the connector mechanism 3 is also connected to the residual liquid component 6 to connect the residual liquid component 6 and the residual liquid collection device, so that the residual liquid collected in the residual liquid component 6 is discharged into the residual liquid collection device; the liquid storage component 2 is used to store the cleaning fluid; the vortex cleaning component is used to clean the injection nozzle 8; the gas-liquid transmission component 5 is used to transport the cleaning fluid and positive pressure gas to the vortex cleaning component respectively; the gas path docking mechanism 4 connects the liquid storage component 2, the gas-liquid transmission component 5 and the gas source in the injection station, so as to introduce the positive pressure gas output from the gas source into the liquid storage component 2 or the gas-liquid transmission component 5 respectively; the residual liquid component 6 is connected to the vortex cleaning component and is used to store the cleaning waste liquid.

[0027] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5The liquid storage assembly 2 is used to store cleaning fluid. Specifically, the liquid storage assembly 2 includes a liquid storage cylinder 21, in which a piston 211 is movably disposed. The piston 211 slides in contact with the inner wall of the liquid storage cylinder 21, and the piston 211 can slide along its axial direction within the liquid storage cylinder 21. A cylinder air inlet 212 is provided on one end face of the liquid storage cylinder 21, and a cylinder drain port 214 and a cylinder inlet 213 are provided on the end face away from the cylinder air inlet 212. The cylinder inlet 213 is connected to the connector mechanism 3 for inputting cleaning fluid into the liquid storage cylinder 21. The cylinder drain port 214 is connected to the gas-liquid transmission assembly 5, through which cleaning fluid is delivered to the vortex cleaning assembly. The cylinder air inlet 212 is connected to the gas path docking mechanism 4 for inputting positive pressure gas into the liquid storage cylinder 21. Positive pressure gas is introduced into the storage cylinder 21 through the cylinder air inlet 212 to push the piston 211 to move towards the side closer to the cylinder drain port 214, thereby forcing the cleaning fluid out of the storage cylinder 21 from the cylinder drain port 214 and delivering the cleaning fluid to the gas-liquid transmission assembly 5.

[0028] Furthermore, a sealing gasket is fitted around the piston 211, and the sealing gasket is interference-fitted with the inner wall of the liquid storage cylinder 21 to ensure airtightness.

[0029] Furthermore, the liquid storage cylinder 21 is equipped with an adjusting screw 22 for adjusting the liquid storage volume of the liquid storage cylinder 21. The adjusting screw 22 is threadedly connected to the side of the liquid storage cylinder 21 near the cylinder inlet 212 and is coaxially arranged with the liquid storage cylinder 21. One end of the adjusting screw 22 extends into the liquid storage cylinder 21. By adjusting the length of the adjusting screw 22 extending into the liquid storage cylinder 21, the travel of the piston 211 within the liquid storage cylinder 21 can be adjusted, thereby adjusting the liquid storage volume of the liquid storage cylinder 21.

[0030] Furthermore, graduations can be marked on the adjusting screw 22 according to the volume of the liquid storage cylinder 21 to instruct the operator to accurately adjust the capacity and ensure adjustment accuracy.

[0031] Reference Figure 2 Figure 9 and Figure 10 The connector mechanism 3 includes a first connector assembly 31 for connecting the liquid storage cylinder 21 and the liquid supply device. The first connector assembly 31 includes a first self-locking quick-connect female connector 311 and a first quick-connect male connector 312. The first self-locking quick-connect female connector 311 is connected to the liquid inlet 213 of the cylinder via a flexible hose. The first quick-connect male connector 312 is located below the first self-locking quick-connect female connector 311 and can move closer to or further away from the first self-locking quick-connect female connector 311 in a vertical direction. The first quick-connect male connector 312 is connected to a liquid inlet pipe, which can be connected to the liquid supply device. When the first quick-connect male connector 312 is close to and connected to the first self-locking quick-connect female connector 311, the cleaning fluid can be delivered to the liquid storage cylinder 21 through the external liquid supply device connected to the first connector assembly 31. When the first quick-connect male connector 312 is separated from the first self-locking quick-connect female connector 311, both are in a self-locking state.

[0032] The liquid storage assembly 2 also includes a diaphragm valve 23, which is located on one side of the liquid outlet 214 of the liquid storage cylinder 21. The liquid outlet 214 of the liquid storage cylinder 21 and the diaphragm valve 23, as well as the diaphragm valve 23 and the liquid passage 52 of the gas-liquid transmission assembly 5, are connected by flexible hoses to control the flow of liquid between the liquid storage cylinder 21 and the gas-liquid transmission assembly 5. When the diaphragm valve 23 is open, the liquid storage cylinder 21, the diaphragm valve 23, and the liquid passage 52 are connected, allowing the cleaning fluid output from the liquid storage cylinder 21 to be transmitted through this passage to the vortex cleaning block 1 for cleaning the injection nozzle 8.

[0033] The connector mechanism 3 also includes a second connector assembly 32, which includes a second self-locking quick-connect female connector 321 and a second quick-connect male connector 322. The second self-locking quick-connect female connector 321 is connected to the air inlet of the diaphragm valve 23, and the second quick-connect male connector 322 is located below the second self-locking quick-connect female connector and can move closer to or further away from the second self-locking quick-connect female connector 321 in a vertical direction. The second quick-connect male connector 322 is connected to an air inlet pipe, which can be connected to an air supply device. When the second quick-connect male connector 322 is close to and connected to the second self-locking quick-connect female connector 321, air can be supplied to the diaphragm valve 23 through an external air supply device connected to the second connector assembly 32, so that the diaphragm valve 23 remains closed; when the second quick-connect male connector 322 is separated from the second self-locking quick-connect female connector 321, both are in a self-locking state.

[0034] By setting the diaphragm valve 23 to cooperate with the first connector assembly 31 and the second connector assembly 32, when the liquid supply device delivers cleaning liquid to the liquid storage cylinder 21 through the first connector assembly 31, the external air source supplies air to the diaphragm valve 23 through the second connector assembly, so that the diaphragm valve 23 remains closed, to prevent the cleaning liquid from flowing out of the cylinder drain port 214 when the liquid storage cylinder 21 is filled with cleaning liquid.

[0035] Reference Figure 2 and Figure 3 The vortex cleaning assembly is used to clean the injection nozzle 8. It includes a vortex cleaning block 1 and is connected to the gas-liquid transmission assembly 5. The cleaning liquid output from the liquid storage cylinder 21 can be transmitted from the gas-liquid transmission assembly 5 to the vortex cleaning assembly to clean the injection nozzle 8. The positive pressure gas output from the gas source can be transmitted from the gas-liquid transmission assembly 5 to the vortex cleaning assembly to purge the cleaned injection nozzle 8 to ensure that the injection nozzle 8 is dry.

[0036] The upper surface of the vortex cleaning block 1 is provided with a vortex cleaning port 11, which penetrates the vortex cleaning block 1 along the thickness direction of the vortex cleaning block 1; the vortex cleaning block 1 is provided with a block liquid inlet 13 and a block air inlet 12 on opposite sides, and the vortex cleaning port 11 is connected to the block liquid inlet 13 and the block air inlet 12 respectively.

[0037] Reference Figure 2 , Figure 3 and Figure 6 The gas-liquid transmission component 5 has a gas passage 53 and a liquid passage 52, which are not connected to each other. The input end of the liquid passage 52 is connected to the cylinder discharge port 214 of the liquid storage cylinder 21, and the output end of the liquid passage 52 is connected to the block inlet 13 of the vortex cleaning block 1. The cleaning liquid output from the liquid storage cylinder 21 is input into the vortex cleaning block 1 through the liquid passage 52, forming a vortex at the vortex cleaning port 11 to perform vortex cleaning on the injection nozzle 8 extending into the vortex cleaning port 11. The input end of the gas passage 53 is connected to the gas passage docking mechanism 4, and the output end of the gas passage 53 is connected to the block air inlet 12 of the vortex cleaning block 1. The gas passage docking mechanism 4 introduces positive pressure gas output from the gas source into the gas passage 53, and the positive pressure gas is then input into the vortex cleaning block 1 through the gas passage 53 to purge the injection nozzle 8 extending into the vortex cleaning port 11.

[0038] Reference Figure 8 Specifically, the gas-liquid transfer assembly 5 includes a gas-liquid manifold 51, within which are a first channel 512 and a second channel 515 that are not interconnected. The gas-liquid manifold 51 has a first inlet 511 and a first outlet 513 connected to the first channel 512, and a second inlet 514 and a second outlet 516 connected to the second channel 515. The first inlet 511, the first channel 512, and the first outlet 513 constitute a liquid passage 52; the second inlet 514, the second channel 515, and the second outlet 516 constitute a gas passage 53. Integrating the gas passage 53 and the liquid passage 52 onto a single gas-liquid manifold 51 simplifies the overall structure of the device.

[0039] In other embodiments, the gas-liquid transfer assembly 5 includes a gas manifold and a liquid manifold, wherein the gas passage 53 is disposed within the gas manifold and the liquid passage 52 is disposed within the liquid manifold.

[0040] Reference Figure 6 The residual liquid assembly 6 is used to store cleaning waste liquid. Specifically, the residual liquid assembly 6 includes a residual liquid box 61, with the residual liquid disposed below the vortex cleaning block 1. A residual liquid inlet 611 is provided on the upper surface of the residual liquid box 61, and the residual liquid inlet 611 is connected to the vortex cleaning port 11 of the vortex cleaning block 1. The cleaning waste liquid can be discharged from the residual liquid inlet 611 into the residual liquid box 61 for collection. A residual liquid outlet 612 is provided near the bottom of the residual liquid box 61, and the residual liquid outlet 612 is connected to the connector mechanism 3 for discharging the cleaning waste liquid from the residual liquid box 61.

[0041] Furthermore, a guide slope is provided at the bottom of the residual liquid box 61, which is inclined toward the residual liquid outlet 612 to guide the cleaning waste liquid in the residual liquid box 61 so that it can be completely discharged from the residual liquid box 61.

[0042] Reference Figure 9 and Figure 10 The connector mechanism 3 includes a third connector assembly 33 for connecting the residual liquid box 61 and the waste liquid collection device. The third connector assembly 33 includes a third self-locking quick-connect female connector 331 and a third quick-connect male connector 332. The third self-locking quick-connect female connector 331 is connected to the residual liquid outlet 612 of the residual liquid box 61 via a hose. The third quick-connect male connector 332 is located below the third self-locking quick-connect female connector 331 and can move closer to or further away from the third self-locking quick-connect female connector 331 in a vertical direction. The third quick-connect male connector 332 is connected to a residual liquid pipe, which can be connected to a waste liquid recovery device. When the third quick-connect male connector 332 is close to and connected to the third self-locking quick-connect female connector 331, a waste liquid collection device can be connected externally through the third connector assembly 33. The waste liquid collection device creates a negative pressure to draw out the cleaning waste liquid in the residual liquid box 61. When the third quick-connect male connector 332 and the third self-locking quick-connect female connector 331 are separated, they are both in a self-locking state.

[0043] The gas path docking mechanism 4 is used to introduce the positive pressure gas output from the gas source device of the injection station into the liquid storage component 2 or the gas-liquid manifold 51. Specifically, the gas path docking mechanism 4 includes an inlet docking block 41, a gas distribution block 42, and a mechanical valve 43. The inlet docking block 41 is used to dock with the gas source device of the injection station. The mechanical valve 43 is set in the gas transmission path between the gas-liquid manifold 51 and the inlet docking block 41 and is used to control the opening and closing of the gas transmission path. The gas distribution block 42 and the inlet docking block 41, as well as the cylinder inlet 212 of the liquid storage cylinder 21 and the gas distribution block 42, are connected by hoses. The mechanical valve 43 and the gas distribution block 42, as well as the mechanical valve 43 and the gas passage 53 of the gas-liquid manifold 51, are also connected by hoses.

[0044] The gas source device connects to the air inlet docking block 41 to supply gas to the entire device. When the mechanical valve 43 is closed, the positive pressure gas output by the gas source device is transmitted to the air distribution block 42 via the air inlet docking block 41, and then input into the liquid storage cylinder 21 from the cylinder inlet 212 of the liquid storage cylinder 21 via the air distribution block 42. At this time, the positive pressure gas can push the piston 211 to squeeze the cleaning liquid in the liquid storage cylinder 21 out of the liquid storage cylinder 21, so as to deliver it to the vortex cleaning block 1 to clean the injection nozzle 8. When the cleaning liquid in the liquid storage cylinder 21 is used up, the mechanical valve 43 is opened. At this time, the air inlet docking block 41, the air distribution block 42, the mechanical valve 43 and the air passage 53 of the gas-liquid manifold 51 are in a conductive state. The positive pressure gas output by the gas source device is transmitted to the air passage 53 through the above passage and then to the vortex cleaning block 1 to purge the cleaned injection nozzle 8.

[0045] Reference Figure 7 Furthermore, the gas connection mechanism 4 also includes a spring drive device, which is used to drive the mechanical valve 43 to open after the cleaning fluid in the reservoir 21 is exhausted. The spring drive assembly 44 includes a push pin, a return spring 443, and a sealing mounting seat 442. The reservoir 21 has a mounting port 24 away from the cylinder inlet 212. The sealing mounting seat 442 is located at the mounting port 24. The push shaft 441 is located on the sealing mounting seat 442, and one end of the push shaft 441 extends into the reservoir 21 from the mounting port 24. The push shaft 441 can move axially along the reservoir 21 in the mounting port 24. The mechanical valve 43 is located on the side of the push shaft 441 away from the reservoir 21, and the push switch of the mechanical valve 43 is facing the push shaft 441. The push shaft 441 moves toward the mechanical valve 43, which can press and push the push switch to trigger the mechanical valve 43. The return spring 443 is sleeved on the side of the push shaft 441 that extends out of the sealing mounting seat 442. The top shaft 441 is provided with an abutment part, and the sealing mounting seat 442 is fixedly provided with an abutment block 444. One end of the return spring 443 abuts against the abutment part, and the other end abuts against the abutment block 444. When the piston 211 pushes the top shaft 441 to move toward the mechanical valve 43, the return spring 443 elastically contracts; when the top shaft 441 is disengaged from the pushing action of the piston 211, the return spring 443 elastically releases, causing the top shaft 441 to return to its original position.

[0046] By setting the movement pattern of the piston 211 of the liquid storage cylinder 21 in conjunction with the spring drive assembly 44, the mechanical valve 43 can be automatically opened after cleaning to perform the blowing operation of the liquid injection nozzle 8, effectively ensuring the working cycle and improving cleaning efficiency.

[0047] Reference Figures 1 to 6 Furthermore, it also includes a frame 7, which is used to install various components. The frame 7 can be configured as a gantry structure, a tabletop structure, etc., and is not limited to any particular type. A mounting bracket 71 is fixedly installed on the frame 7. The mounting bracket 71 has a rectangular frame structure, and the residual liquid box 61 is fixedly installed inside the mounting bracket 71. The mounting bracket 71 has a lower connecting through hole corresponding to the residual liquid inlet 611. A sealing plate 72 is fixedly installed above the mounting bracket 71. The sealing plate 72 has an upper connecting through hole corresponding to the lower connecting through hole. A guide sleeve 73 is installed in the lower connecting through hole, and the two ends of the guide sleeve 73 are respectively connected to the upper connecting through hole and the residual liquid inlet 611. The vortex cleaning block 1 is fixedly installed on the sealing plate 72, and the vortex cleaning port 11 is coaxially arranged and connected to the upper connecting through hole, so that the waste liquid after cleaning by the vortex cleaning port 11 can be directly discharged into the residual liquid box 61.

[0048] Furthermore, to ensure the sealing effect of the device, sealing structures are provided between the residual liquid box 61 and the mounting bracket 71, between the mounting bracket 71 and the sealing plate 72, and between the sealing plate 72 and the eddy current cleaning block 1. The sealing structure can be a sealing gasket, sealing ring, etc., and is not limited to any one of them, as long as it can achieve the above purpose.

[0049] In this embodiment, each vortex cleaning assembly includes multiple vortex cleaning blocks 1, which are arranged side-by-side on a sealing plate 72. Correspondingly, the sealing plate 72 has upper connecting through holes corresponding to the vortex cleaning blocks 1, the mounting bracket 71 has lower connecting through holes corresponding to the upper connecting through holes, and the residual liquid box 61 has a residual liquid inlet 611 corresponding to the lower connecting through holes. The spacing between each vortex cleaning block 1 matches the spacing between the injection nozzles 8 in the injection station, meeting the needs for batch cleaning of the injection nozzles 8 and facilitating industrial application. The gas-liquid manifold 51 also has multiple first outlets 513 and multiple second outlets 516. Each first outlet 513 corresponds to one vortex cleaning block 1 and is connected to the corresponding block liquid inlet 13; each second outlet 516 corresponds to one vortex cleaning block 1 and is connected to the corresponding block air inlet 12. This enables simultaneous liquid injection and simultaneous air circulation for multiple vortex cleaning blocks 1.

[0050] Furthermore, the frame 7 is equipped with multiple cleaning modules. Each cleaning module includes a set of vortex cleaning components, a set of liquid storage components 2, a set of residual liquid components 6, and a set of air path docking mechanisms 4. The air distribution blocks 42 in each cleaning module are connected by hoses to achieve air path interconnection between the cleaning modules. The inlet 213 of the liquid storage cylinder 21 in each cleaning module is connected to the first docking component of the docking mechanism by a hose. The diaphragm valve in each cleaning module is connected to the second docking component of the docking mechanism by a hose. The residual liquid box 61 in each cleaning module is connected to the third docking component of the docking mechanism by a hose. This enables synchronous liquid injection, synchronous cleaning operation, and synchronous air purging of each cleaning module.

[0051] Reference Figure 10Furthermore, the first self-locking quick-connect female connector 311, the second self-locking quick-connect female connector 321, and the third self-locking quick-connect female connector 331 are fixedly arranged side by side on one side of the frame 7. A mounting plate 74 located below the first self-locking quick-connect female connector 311 is fixedly connected to the frame 7. A docking plate 75 is slidably arranged on the mounting plate 74. The first quick-connect male connector 312, the second quick-connect male connector 322, and the third quick-connect male connector 332 are fixedly arranged on the docking plate 75, corresponding one-to-one with the first self-locking quick-connect female connector 311, the second self-locking quick-connect female connector 321, and the third self-locking quick-connect female connector 331. A docking drive cylinder 34 is fixedly arranged on the mounting plate 74, and the piston rod of the docking drive cylinder 34 is connected to the docking plate 75, used to drive the docking plate 75 to rise and fall vertically on the mounting plate 74, thereby realizing the docking and conduction of the various connector components of the docking mechanism.

[0052] The implementation process of this invention is as follows: First, in the tooling station outside the equipment, the cleaning fluid (DEC solution) is injected into the storage tank 21 by positive pressure through the first connector assembly 31. Then, the entire vortex cleaning device for the injection nozzle is transferred to the injection station by the forks. The air source device in the injection station is connected to the air inlet docking block 41 to provide air to the entire device. During cleaning, the diaphragm valve 23 opens, the storage tank 21 starts working, and the cleaning fluid is injected into the liquid passage 52 of the air-liquid manifold 51, and then flows from each first outlet 513 to each vortex. In cleaning block 1, all injection nozzles 8 in the injection station are cleaned using a vortex cleaning process. The residual liquid box 61 is placed below the vortex cleaning block 1, and the cleaned residual liquid flows directly into the residual liquid box 61. After cleaning, the spring-driven device mounted on the storage cylinder 21 drives the mechanical valve 43 to open. Airflow enters the air passage 53 of the air-liquid manifold 51 from the mechanical valve 43 and flows through the second outlet 516 to each vortex cleaning block 1 to purge the injection nozzles 8. After purging, the cleaning operation of the injection nozzles 8 is completed. Finally, the drive forks move the entire injection nozzle vortex cleaning device back to the tooling station, and the docking mechanism reconnects and connects, drawing the cleaning residual liquid in the residual liquid box 61 under negative pressure into the residual liquid recovery device, thus completing the entire cleaning process. The entire cleaning process requires no manual intervention and is fully automated, effectively ensuring production efficiency and safety.

[0053] The present invention also provides: A method for vortex cleaning of a liquid injection nozzle includes the following steps: S1. First, in the tooling station, the liquid supply device injects the cleaning liquid into the storage tank 21 through the positive pressure of the connector mechanism 3, and then the liquid injection nozzle vortex cleaning device is transferred to the liquid injection station. S2. Next, positive pressure is introduced into the storage tank 21 and the diaphragm valve 23 is opened. The cleaning fluid is forced into the gas-liquid manifold 51 and then transported by the gas-liquid manifold 51 to the vortex cleaning block 1 to clean the injection nozzle 8 in the injection station. The cleaned residual liquid flows into the residual liquid box 61. S3. After the cleaning fluid in the storage cylinder 21 is used up, the piston 211 pushes the top shaft 441 close to the mechanical valve 43 and triggers the mechanical valve 43 to open, introducing positive pressure gas into the vortex cleaning block 1 to purge the injection nozzle 8. S4. After purging, the device is transferred back to the tooling station, and the connector mechanism 3 is reconnected to extract the residual liquid in the residual liquid box 61 into the residual liquid collection device.

[0054] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A vortex cleaning device for a liquid injection nozzle, characterized in that, include: A vortex cleaning assembly for cleaning a liquid injection nozzle includes a vortex cleaning block, wherein the vortex cleaning block is provided with a block liquid inlet and a block air inlet. Liquid storage assembly, including a liquid storage tank for storing cleaning fluid; A connector mechanism is connected to a liquid storage tank, through which cleaning fluid can be delivered into the liquid storage tank; The gas connection mechanism includes an air inlet connection block, which is used to connect to the gas source of the injection station; A gas-liquid transmission assembly has a gas passage and a liquid passage. The input end of the liquid passage is connected to the liquid storage cylinder, and the output end of the liquid passage is connected to the liquid inlet of the vortex cleaning block. The input end of the gas passage is connected to the gas connection mechanism, and the output end of the gas passage is connected to the air inlet of the vortex cleaning block. A residual liquid assembly, which is connected to the vortex cleaning block, is used to store cleaning waste liquid.

2. The vortex cleaning device for a liquid injection nozzle according to claim 1, characterized in that: A piston is installed inside the liquid storage cylinder. The piston's periphery slides in contact with the inner wall of the liquid storage cylinder and can slide along its axial direction within the liquid storage cylinder. A cylinder air inlet is provided at one end of the liquid storage cylinder. A cylinder drain port and a cylinder inlet port are provided at the end of the liquid storage cylinder away from the cylinder air inlet port. The cylinder air inlet port is connected to the air inlet docking block. The cylinder inlet port is connected to the connector mechanism. The cylinder drain port is connected to the liquid passage.

3. The vortex cleaning device for a liquid injection nozzle according to claim 2, characterized in that: An adjusting screw is provided on the end face of the liquid storage cylinder near the air inlet. The adjusting screw is threaded to the liquid storage cylinder and is coaxial with the liquid storage cylinder. One end of the adjusting screw extends into the liquid storage cylinder, and the length of the adjusting screw extending into the liquid storage cylinder is adjustable.

4. The vortex cleaning device for a liquid injection nozzle according to claim 1, characterized in that: The upper surface of the vortex cleaning block is provided with a vortex cleaning port for cleaning the injection nozzle. The block liquid inlet and block air inlet are respectively provided on opposite sides of the vortex cleaning block and are both connected to the vortex cleaning port.

5. The vortex cleaning device for a liquid injection nozzle according to claim 4, characterized in that: The residual liquid assembly includes a residual liquid box, which is located below the vortex cleaning block. The upper surface of the residual liquid box has a residual liquid inlet, which is connected to the vortex cleaning port. A residual liquid outlet is located on one side of the residual liquid box, which is connected to the connector mechanism.

6. The vortex cleaning device for a liquid injection nozzle according to claim 2, characterized in that: The connector mechanism includes a first connector assembly, which includes a first self-locking quick-connect female and a first quick-connect male. The first self-locking quick-connect female is connected to the cylinder inlet, and the first quick-connect male is located below the first self-locking quick-connect female and can be close to and communicate with the first self-locking quick-connect female or be separated from the first self-locking quick-connect female. The first quick-connect male is used to connect to a liquid supply device.

7. The vortex cleaning device for a liquid injection nozzle according to claim 2, characterized in that: The gas connection mechanism also includes a gas distribution block and a mechanical valve. The gas distribution block and the air inlet connection block, as well as the air inlet of the liquid storage cylinder and the gas distribution block, are connected by hoses. The mechanical valve is connected to the gas distribution block via a hose, and the mechanical valve is also connected to the gas passage via a hose.

8. The vortex cleaning device for a liquid injection nozzle according to claim 7, characterized in that: The gas path docking mechanism further includes a spring drive assembly, which includes a top shaft, a return spring, and a sealing mounting seat. An installation port is provided on the end face of the liquid storage cylinder away from the cylinder inlet. The sealing mounting seat is located at the installation port. The top shaft is mounted on the sealing mounting seat and can move axially along the liquid storage cylinder within the installation port. The mechanical valve is located on the side of the top shaft away from the liquid storage cylinder. The return spring is sleeved on the side of the top shaft away from the liquid storage cylinder. The top shaft has an abutment portion, and the sealing mounting seat has an abutment block. One end of the return spring abuts against the abutment portion, and the other end abuts against the abutment block. When the piston moves to a position close to the top shaft, it can push the top shaft to move towards the mechanical valve, thereby triggering the mechanical valve.

9. The vortex cleaning device for a liquid injection nozzle according to claim 7, characterized in that: The gas-liquid transmission component includes a gas-liquid manifold, which has a first channel and a second channel that are not interconnected. The gas-liquid manifold has a first inlet and a first outlet that are connected to the first channel. The first inlet is connected to the cylinder drain port, and the first outlet is connected to the block inlet. The first inlet, the first channel, and the first outlet constitute the liquid path channel. The gas-liquid manifold is provided with a second inlet and a second outlet connected to the second channel. The second inlet is connected to the mechanical valve, and the second outlet is connected to the block air inlet. The second inlet, the second channel, and the second outlet constitute the gas path channel.

10. The vortex cleaning device for a liquid injection nozzle according to claim 9, characterized in that: The liquid storage assembly also includes a diaphragm valve, and the liquid outlet of the liquid storage cylinder is connected to the diaphragm valve and the diaphragm valve is connected to the first inlet via a hose.

11. The vortex cleaning device for a liquid injection nozzle according to claim 10, characterized in that: The connector mechanism includes a second connector assembly, which includes a second self-locking quick-connect female and a second quick-connect male. The second self-locking quick-connect female is connected to the air inlet of the diaphragm valve. The second quick-connect male is located below the second self-locking quick-connect female and can be close to and communicate with the second self-locking quick-connect female or be separated from the second self-locking quick-connect female. The second quick-connect male is used to connect to the air supply device.

12. The vortex cleaning device for a liquid injection nozzle according to claim 5, characterized in that: The connector mechanism further includes a third connector assembly, which includes a third self-locking quick-connect female and a third quick-connect male. The third self-locking quick-connect female is connected to the residual liquid outlet of the residual liquid box. The third quick-connect male is located below the third self-locking quick-connect female and can be close to and communicate with the third self-locking quick-connect female or be separated from the third self-locking quick-connect female. The third quick-connect male is used to connect to the waste liquid recovery device.

13. The vortex cleaning device for a liquid injection nozzle according to claim 1, characterized in that: It also includes a frame, on which the connector mechanism is fixedly mounted. The frame is provided with multiple cleaning modules, each of which includes a set of vortex cleaning components, a set of liquid storage components, a set of residual liquid components and a set of air path docking mechanisms; each of the cleaning modules is connected to the connector mechanism.

14. A method for vortex cleaning of a liquid injection nozzle, characterized in that, Includes the following steps: S1. First, in the tooling station, the liquid supply device injects the cleaning fluid into the storage tank by introducing positive pressure through the connector mechanism, and then the liquid injection nozzle vortex cleaning device is transferred to the liquid injection station. S2. Next, positive pressure is introduced into the storage tank and the diaphragm valve is opened. The cleaning fluid is forced into the gas-liquid manifold and then transported by the gas-liquid manifold to the vortex cleaning block to clean the injection nozzles in the injection station. The cleaned residual liquid flows into the residual liquid box. S3. After the cleaning fluid in the storage tank is used up, the piston pushes the top shaft close to the mechanical valve and triggers the mechanical valve to open, introducing positive pressure gas into the vortex cleaning block to purge the injection nozzle. S4. After purging, the device is transferred back to the tooling station, and the connector mechanism is reconnected to extract the residual liquid in the residual liquid box into the residual liquid collection device.

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