Cleaning device

Abstract

The utility model relates to the technical field of coating equipment, in particular to a cleaning device. The cleaning device comprises a mounting frame; the vibrator is connected with the mounting frame; the first cleaning assembly comprises a first liquid storage tank and a first cleaning pump, the first liquid storage tank communicates with a liquid inlet of the first cleaning pump, and a liquid outlet of the first cleaning pump is used for communicating with the interior of a workpiece to be cleaned; the first liquid storage tank is used for containing cleaning liquid; the second cleaning assembly comprises a second liquid storage tank and a second cleaning pump, the second liquid storage tank is communicated with a liquid inlet of the second cleaning pump, and a liquid outlet of the second cleaning pump is used for being communicated with the interior of the workpiece to be cleaned; the second liquid storage tank is used for containing pure water. And the cleaning liquid can be used for fully cleaning the to-be-cleaned workpiece. The vibrator accelerates separation of slurry in the to-be-cleaned workpiece, and the pure water can conduct secondary cleaning on the to-be-cleaned workpiece and remove cleaning liquid residues. Therefore, the cleaning efficiency and the cleaning effect can be improved, and residues are not prone to being generated.

Description

Technical Field

[0001] This application relates to the field of coating equipment technology, and more particularly to a cleaning device. Background Technology

[0002] Coating equipment is a production device that applies coatings to the surface of a substrate. During continuous production, the coating slit extrusion die of the coating equipment is prone to clogging due to slurry solidification and residue. In such cases, technicians need to clean the coating slit extrusion die promptly to restore production as quickly as possible.

[0003] Currently, cleaning of slit extrusion dies for coating mainly relies on manual labor. Technicians disassemble the slit extrusion die and wipe its interior with non-woven fabric, alcohol, and other materials. Both the disassembly and cleaning of the slit extrusion die are time-consuming, resulting in low cleaning efficiency. Furthermore, the complex flow channel structure inside the slit extrusion die makes it difficult to guarantee effective cleaning manually, easily leading to residue buildup in hard-to-reach areas. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a cleaning device.

[0005] In a first aspect, the cleaning apparatus provided in the embodiments of this application includes:

[0006] Mounting bracket, used for mounting workpieces to be cleaned;

[0007] A vibrator, which is connected to the mounting bracket;

[0008] A first cleaning assembly includes a first liquid storage tank and a first cleaning pump. The first liquid storage tank is connected to the inlet of the first cleaning pump, and the outlet of the first cleaning pump is used to communicate with the interior of the workpiece to be cleaned. The first liquid storage tank is used to contain cleaning liquid.

[0009] The second cleaning assembly includes a second liquid storage tank and a second cleaning pump. The second liquid storage tank is connected to the inlet of the second cleaning pump, and the outlet of the second cleaning pump is used to communicate with the interior of the workpiece to be cleaned. The second liquid storage tank is used to contain pure water.

[0010] Optionally, the first cleaning assembly further includes a heating unit;

[0011] The heating unit includes a heat exchange tube, a heater, and an insulation box; the heater and the heat exchange tube are disposed in the insulation box, and the heating end of the heater is in contact with the heat exchange tube; the heat exchange tube is connected to the first liquid storage tank.

[0012] Optionally, the first cleaning assembly further includes a filter, which is in communication with the first liquid storage tank.

[0013] Optionally, the inlet of the first cleaning pump is connected to the outlet of the first storage tank, and the outlet of the first cleaning pump is connected to the inlet of the filter; the inlet of the heat exchange tube is connected to the outlet of the filter, and the outlet of the heat exchange tube is used to communicate with the interior of the workpiece to be cleaned.

[0014] Optionally, the inlet of the filter is located at the end of the filter facing the ground, and the outlet of the filter is located at the end of the filter away from the ground.

[0015] Optionally, the second cleaning assembly further includes a three-way valve and a nozzle unit;

[0016] The three-way valve has a first port, a second port, and a third port; the first port is connected to the second liquid storage tank, the second port is used to communicate with the interior of the workpiece to be cleaned, and the third port is connected to the nozzle unit.

[0017] The nozzle unit is located adjacent to the mounting bracket, and the water outlet direction of the nozzle unit faces the mounting bracket.

[0018] Optionally, the nozzle unit includes a bracket, a nozzle tube, and a nozzle;

[0019] The bracket has a mounting cavity, the nozzle tube is movably mounted in the mounting cavity, the bracket has an opening on one side facing the mounting frame, the opening is in communication with the mounting cavity; one end of the nozzle tube is in communication with the third port; the other end of the nozzle tube is in communication with the nozzle, and the nozzle extends out from the opening.

[0020] Optionally, the cleaning apparatus further includes a dryer; the dryer is used to introduce gas into the workpiece to be cleaned.

[0021] Optionally, the mounting bracket includes a frame and a stop block;

[0022] Multiple stops are provided, and the multiple stops are movably connected to the frame; the multiple stops enclose an installation space for installing the workpiece to be cleaned; when the workpiece to be cleaned is installed in the installation space, the multiple stops clamp the workpiece to be cleaned.

[0023] Optionally, multiple vibrators are provided, and the multiple vibrators are arranged in an array.

[0024] In some implementations of this application, the cleaning apparatus includes a first cleaning component, a second cleaning component, a mounting frame, and a vibrator. The first cleaning component includes a first liquid storage tank and a first cleaning pump connected together, the first cleaning pump pumping out cleaning fluid from the first liquid storage tank to clean the workpiece. The second cleaning component includes a second liquid storage tank and a second cleaning pump connected together, the second cleaning pump pumping out pure water from the second liquid storage tank to clean the workpiece. The vibrator drives the cleaning fluid inside the workpiece to vibrate synchronously.

[0025] Under the action of the first cleaning pump, the cleaning fluid can thoroughly clean the workpiece. Simultaneously, the vibrator drives the cleaning fluid inside the workpiece to vibrate, accelerating the removal of slurry from the workpiece and thus improving cleaning efficiency and effect. Under the action of the second cleaning pump, pure water can perform a secondary cleaning of the workpiece and remove cleaning fluid residue, further improving the cleaning effect of the cleaning device. Therefore, using the cleaning device described in this application can reduce manual labor and improve cleaning efficiency. At the same time, the cleaning effect is comprehensive and thorough, and residue is unlikely to be generated.

[0026] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is an isometric view of the cleaning apparatus described in this application;

[0029] Figure 2 yes Figure 1 Axonometric view of the mounting bracket and vibrator;

[0030] Figure 3 yes Figure 1 Schematic diagram of the internal structure of the heating unit;

[0031] Figure 4 yes Figure 1 Axonometric view of the filter;

[0032] Figure 5 yes Figure 1 A schematic diagram of the connection of the first cleaning component;

[0033] Figure 6 yes Figure 1 A schematic diagram of the connection of the second cleaning component;

[0034] Figure 7 yes Figure 4 Axonometric view of the central nozzle unit;

[0035] Reference numerals: 1. Mounting frame; 11. Frame body; 111. Support column; 112. Support platform; 113. Enclosure; 12. Stop block; 13. Installation space; 2. Vibrator; 3. First cleaning assembly; 31. First liquid storage tank; 32. First cleaning pump; 33. Heating unit; 331. Heat exchange tube; 332. Heater; 333. Insulated box; 34. Filter; 4. Second cleaning assembly; 41. Second liquid storage tank; 42. Second cleaning pump; 43. Three-way valve; 43a. 43b, Port 2; 43c, Port 3; 44, Nozzle unit; 441, Bracket; 441a, Mounting cavity; 441b, Opening; 4411, Crossbeam; 4412, Longitudinal beam; 4412a, First part; 4412b, Second part; 442, Nozzle pipe; 443, Nozzle; 5, Dryer; 6, Frame; 61, Roller; 62, Support leg; 63, Support plate; 64, Handle; 7, Clamp; 8, Waste liquid tank; 100, Workpiece to be cleaned. Detailed Implementation

[0036] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0037] Slot coating equipment is a high-precision coating technology widely used in electronics, new energy, semiconductors, printing, packaging and other fields. By controlling the flow and distribution of the coating liquid in the slot extrusion die, slot coating equipment can uniformly and efficiently coat the substrate surface.

[0038] During continuous production, the slurry can easily solidify and remain inside the coating slit extrusion die, causing blockage. In this case, technicians need to clean the die promptly to restore production as quickly as possible. During cleaning, technicians manually disassemble the die and wipe its interior with non-woven fabric, alcohol, or similar materials. After cleaning, the die is reassembled.

[0039] Currently, the process of disassembling and reassembling the coating slit extrusion die takes approximately two to four hours. Cleaning and wiping the coating slit extrusion die takes four to six hours. This means that production plans have to be delayed for a considerable period, which will have a very serious impact on production continuity.

[0040] Furthermore, the coating slit extrusion die has a complex internal flow channel structure, making manual cleaning difficult to guarantee effective cleaning. Even after cleaning, slurry residue may remain in the dead corners of the coating slit extrusion die. This can affect the normal operation of the coating slit extrusion die, making it prone to re-clogging due to slurry residue and solidification.

[0041] To address the aforementioned problems, this application provides a cleaning device.

[0042] The cleaning device provided in this application includes a mounting bracket 1, a vibrator 2, a first cleaning component 3, and a second cleaning component 4. (Refer to...) Figure 1 The mounting frame 1 is the mounting structure used to mount the workpiece 100 to be cleaned. In this embodiment, the specific structure of the mounting frame 1 depends on the actual workpiece 100 to be cleaned. The workpiece 100 to be cleaned can be a coating slit extrusion die as described above, or it can be a complex pipe. The workpiece 100 to be cleaned can be mounted on the mounting frame 1 by clamping with fixtures, fastener connection, etc., for subsequent cleaning operations.

[0043] refer to Figure 2 The vibrator 2 is a device capable of generating vibration. The vibrator 2 is connected to the mounting bracket 1 and uses mechanical vibration, ultrasound, or other methods to drive the cleaning fluid inside the workpiece 100 to be cleaned to vibrate during the cleaning stage. This allows the slurry adhering to the inside of the workpiece 100 to be cleaned to be quickly peeled off, thereby improving cleaning efficiency and effectiveness. In this embodiment, the vibrator 2 is preferably an ultrasonic vibration module.

[0044] When the vibrator 2 employs an ultrasonic vibration module, it can generate high-frequency ultrasonic waves into the cleaning fluid inside the workpiece 100 to be cleaned. As the high-frequency ultrasonic waves propagate in the cleaning fluid, the liquid molecules within the fluid are subjected to alternating compression and stretching, resulting in the formation of cavitation bubbles. The collapse of these cavitation bubbles releases localized high temperature, high pressure, and high-speed microjets, which powerfully impact the slurry inside the workpiece 100, causing the slurry adhering to the workpiece 100 to be cleaned to be quickly and thoroughly peeled off. The vibrator 2 can employ frequency sweep technology, meaning its vibration frequency changes linearly within a certain period to prevent the generation of standing waves in the cleaning fluid, thus avoiding uneven cleaning effects caused by standing waves. In this embodiment, the vibration frequency of the vibrator 2 increases linearly every 30 seconds, with the linear increase ranging from 20kHz to 40kHz.

[0045] refer to Figure 1 The first cleaning component 3 specifically includes a first storage tank 31 and a first cleaning pump 32. The first storage tank 31 is a container for holding the cleaning fluid. The specific structure, shape, and size of the first storage tank 31 can be determined according to actual needs; for example, the first storage tank 31 can be a cylindrical storage tank with a volume of 200L or a cubic storage tank with a volume of 300L. The cleaning fluid contained inside the first storage tank 31 is preferably a cleaning fluid that will not corrode the material of the workpiece 100 to be cleaned. In this embodiment, the cleaning fluid can specifically be a composite cleaning fluid, specifically containing one or more of the following materials: water-based solvents, organic solvents, nonionic surfactants, corrosion inhibitors, and nano-silica abrasives. Preferably, the cleaning solution used in the embodiments of this application contains 60%-75% water-based solvent; 10%-15% organic solvent, preferably propylene glycol methyl ether acetate; 5%-8% nonionic surfactant, preferably polyoxyethylene ether material; 0.5%-1% corrosion inhibitor, preferably benzotriazole derivative; and 2%-5% nano-silica abrasive, preferably with a particle size of 50nm to 100nm.

[0046] The first cleaning pump 32 is a device that provides pressure and power for the flow of the cleaning fluid. The first storage tank 31 preferably has an outlet at its bottom, and the inlet of the first cleaning pump 32 is connected to the outlet of the first storage tank 31 via a pipe or similar structure. The outlet of the first cleaning pump 32 is connected to the workpiece 100 to be cleaned via a pipe and is in communication with the interior of the workpiece 100. When the first cleaning pump 32 is started, the cleaning fluid is pumped into the workpiece 100 and flushes the interior of the workpiece 100, thereby achieving the purpose of cleaning the interior of the workpiece 100.

[0047] refer to Figure 1 The second cleaning component 4 includes a second storage tank 41 and a second cleaning pump 42. The second storage tank 41 is a container for holding pure water. The specific structure, shape, and size of the second storage tank 41 are determined according to actual needs; for example, the second storage tank 41 can be a cylindrical storage tank with a volume of 200L or a cubic storage tank with a volume of 300L. The second cleaning pump 42 is a device that provides pressure and power for the flow of pure water. Preferably, the second storage tank 41 has an outlet at its bottom, and the inlet of the second cleaning pump 42 is connected to the outlet of the second storage tank 41 via a pipe or other structure. The outlet of the second cleaning pump 42 is also connected to the workpiece 100 to be cleaned via a pipe and is in communication with the interior of the workpiece 100. When the second cleaning pump 42 is started, pure water is pumped into the workpiece 100 to be cleaned and flushes the inside of the workpiece 100 to be cleaned, so as to flush out the residual cleaning liquid and a small amount of residue inside the workpiece 100.

[0048] In this embodiment of the application, the cleaning device first uses the first cleaning component 3 and cleaning fluid to rinse the inside of the workpiece 100 to be cleaned. At the same time, the vibrator 2 is simultaneously activated to allow the slurry inside the workpiece 100 to detach from its attachment points as quickly as possible. After the first cleaning component 3 and vibrator 2 complete the cleaning task, the second cleaning component 4 and pure water are used to rinse the inside of the workpiece 100 a second time, so that any residual cleaning fluid and a small amount of residue inside the workpiece 100 are flushed out.

[0049] Under the action of the first cleaning pump 32, the cleaning fluid can thoroughly clean the workpiece 100. The vibrator 2 simultaneously drives the cleaning fluid inside the workpiece 100 to vibrate, accelerating the slurry removal and thus improving cleaning efficiency and effect. Under the action of the second cleaning pump 42, pure water can perform a secondary cleaning of the workpiece 100 and remove cleaning fluid residue, further improving the cleaning effect of the cleaning device. During the cleaning process, technicians do not need to disassemble the workpiece 100 or wipe it with non-woven cloth and alcohol. Therefore, using the cleaning device described in this application can reduce manual labor and cleaning time, thereby improving cleaning efficiency. Simultaneously, the combined action of the first cleaning component 3, the second cleaning component 4, and the vibrator 2 ensures a comprehensive and thorough cleaning effect, minimizing residue buildup.

[0050] refer to Figure 1 In some embodiments of this application, the first cleaning assembly 3 further includes a heating unit 33. (See reference...) Figure 3The heating unit 33 specifically includes a heat exchange tube 331, a heater 332, and an insulation box 333. The insulation box 333 is a box structure made of insulation materials such as rock wool and polyurethane foam. The heater 332 and the heat exchange tube 331 are both located inside the insulation box 333. The specific shape and size of the insulation box 333 depend on actual needs and will not be described in detail here.

[0051] The heat exchange tube 331 is the pipe used for flowing the cleaning fluid. In this embodiment, the heat exchange tube 331 can be a straight pipe, a bent pipe, etc. Preferably, the heat exchange tube 331 is a serpentine pipe. Specifically, the heat exchange tube 331 can be a single pipe, or two or three interconnected pipes. One end of the heat exchange tube 331 is connected to the first storage tank 31, so that the cleaning fluid flows from the heat exchange tube 331 into the first storage tank 31, or flows from the first storage tank 31 into the heat exchange tube 331. The heat exchange tube 331 is made of materials with good thermal conductivity, such as copper, aluminum, or 316L stainless steel, and its size can be determined according to actual needs. For example, the diameter of the heat exchange tube 331 can be 30mm, 32mm, 34mm, etc.

[0052] Heater 332 is a heating device for heating heat exchange tube 331 and the cleaning fluid inside heat exchange tube 331. The heating end of heater 332 is in contact with heat exchange tube 331 to transfer the heat generated by heater 332 into heat exchange tube 331. In this embodiment, heater 332 can be an electric heating wire wound around the surface of heat exchange tube 331. The part of the electric heating wire that generates heat when energized is the heating end. When heater 332 is energized, the heat it generates is directly transferred into heat exchange tube 331, raising the temperature of the cleaning fluid inside heat exchange tube 331. In other embodiments, heater 332 can also be a water bath, alcohol torch, or other similar device.

[0053] Specifically, in this embodiment, the heating tube can be connected to the inlet of the first storage tank 31. When cleaning fluid is injected into the first storage tank 31, the cleaning fluid passes through the heating tube and is heated by the heater 332. The heated cleaning fluid is then pumped into the workpiece 100 to be cleaned by the first cleaning pump 32 to complete the cleaning operation. Alternatively, the heating tube can be connected to the outlet of the first storage tank 31. The cleaning fluid in the first storage tank 31 is first pumped into the heating tube by the first cleaning pump 32 and heated by the heater 332. The heated cleaning fluid then enters the workpiece 100 to be cleaned by the first cleaning pump 32 to complete the cleaning operation. Under the action of the heating unit 33, the cleaning fluid entering the workpiece 100 to be cleaned can have a temperature higher than room temperature. The heated cleaning fluid can reduce the intermolecular forces in the slurry, causing the solidified slurry to transform into a viscous flow state and simultaneously reducing the viscosity of the slurry. This makes the slurry in the workpiece 100 easier to rinse, thereby improving the cleaning efficiency and cleaning effect of the cleaning device.

[0054] Furthermore, heating lowers the activation energy of the cleaning solution and enhances its solubility. This accelerates the chemical reaction between the cleaning solution and the slurry, improving the solution's dissolution effect. The heated cleaning solution then more easily rinses the slurry, significantly improving both cleaning efficiency and effectiveness. Since the workpiece 100 and the slurry typically have different coefficients of thermal expansion, the heated cleaning solution causes them to expand to varying degrees, increasing the interfacial stress between them and promoting slurry detachment.

[0055] In this embodiment, the heating unit 33 may be equipped with a heating control unit. The heating control unit is electrically connected to the heater 332 to control the temperature of the cleaning fluid. The heating control unit preferably employs a PID (proportional-integral-derivative control) module. PID modules offer reliable control and better temperature control accuracy. Based on the PID module, the heating device described in this application can achieve a faster heating rate and better temperature control accuracy. For example, in one embodiment of this application, the heating unit 33 preferably achieves a heating rate of 3℃ / min and a temperature control accuracy of ±0.5℃, maintaining the temperature of the cleaning fluid between 40℃ and 60℃.

[0056] refer to Figure 1In some embodiments of this application, the first cleaning assembly 3 further includes a filter 34. The filter 34 is connected to the first storage tank 31. Specifically, one end of the filter 34 is connected to the first storage tank 31 so that the cleaning fluid can flow from the filter 34 into the first storage tank 31, or flow from the first storage tank 31 into the filter 34. When the filter 34 is specifically connected to the inlet of the first storage tank 31, the cleaning fluid can pass through the filter 34 during the injection into the first storage tank 31 to prevent large particles in the cleaning fluid from entering the first storage tank 31, thereby preventing large particles in the cleaning fluid from entering the workpiece 100 to be cleaned. When the filter 34 is specifically connected to the outlet of the first storage tank 31, the cleaning fluid can pass through the filter 34 during the flow from the first storage tank 31 into the workpiece 100 to be cleaned, to prevent large particles in the cleaning fluid from entering the workpiece 100 to be cleaned. The filter 34 prevents large particles in the cleaning fluid from entering the workpiece 100 to be cleaned and clogging the flow channels inside the workpiece 100. This helps to ensure the flow of the cleaning fluid in the workpiece 100 and thus improves the cleaning efficiency and cleaning effect of the cleaning device.

[0057] In this embodiment, filter 34 can be provided as one, or as two, three, four, or even more. (See reference...) Figure 4 When two or more filters 34 are provided, they are preferably connected in series to achieve a multi-stage filtration effect. For example, in this embodiment, five filters 34 with a filtration capacity of 5 μm and five filters 34 with a filtration capacity of 1 μm can be connected in series. The five filters 34 with a filtration capacity of 5 μm first perform coarse filtration of the cleaning solution, and then the five filters 34 with a filtration capacity of 1 μm perform fine filtration of the cleaning solution. The filters 34 are connected to each other by pipes and fixed to each other by clamps 7.

[0058] refer to Figure 5In some embodiments of this application, the inlet of the first cleaning pump 32 is connected to the outlet of the first storage tank 31, and the outlet of the first cleaning pump 32 is connected to the inlet of the filter 34. The inlet of the heat exchange tube 331 is connected to the outlet of the filter 34, and the outlet of the heat exchange tube 331 is connected to the interior of the workpiece 100 to be cleaned. In other words, the first storage tank 31, the first cleaning pump 32, and the heat exchange tube 331 are connected in the same passage. The cleaning liquid in the first storage tank 31 is pumped by the first cleaning pump 32 and first enters the filter 34 for filtration. The filtered cleaning liquid enters the heat exchange tube 331 and is heated by the heater 332, and then enters the interior of the workpiece 100 to be cleaned for cleaning. Since the cleaning liquid entering the heat exchange tube 331 is all filtered cleaning liquid, there are no large particles in the cleaning liquid entering the heat exchange tube 331. This can avoid the blockage of the heat exchange tube 331 and also help to ensure the consistency of the heating effect of the cleaning liquid. The cleaning fluid, heated in the heat exchange tube 331, directly enters the workpiece 100 to be cleaned, which helps to reduce the temperature loss of the cleaning fluid and helps to control the temperature of the cleaning fluid entering the workpiece 100 to be cleaned within the preset temperature range.

[0059] In some embodiments of this application, the inlet of the filter 34 is located at the end of the filter 34 facing the ground, and the outlet of the filter 34 is located at the end of the filter 34 away from the ground. This means that the filter 34 adopts a bottom-in, top-out connection. During use, the cleaning fluid flows into the filter 34 from below, passes through the filter screen and other filtration structures within the filter 34, and then exits from the top of the filter 34. Large particles filtered out of the cleaning fluid can be deposited at the bottom of the filter 34 under gravity, preventing accumulation on the filtration structure. This prevents the filter 34 from becoming clogged, ensuring its smooth operation and thus contributing to the normal operation and cleaning efficiency of the cleaning device.

[0060] refer to Figure 6 In some embodiments of this application, the second cleaning assembly 4 further includes a three-way valve 43 and a nozzle unit 44.

[0061] The three-way valve 43 is a valve device with one inlet and two outlets. Specifically, in this application, the three-way valve 43 has a first port 43a, a second port 43b, and a third port 43c. The first port 43a is connected to the second liquid storage tank 41, allowing pure water from the second liquid storage tank 41 to flow into the three-way valve 43 via the first port 43a. The second port 43b is connected to the interior of the workpiece 100 to be cleaned, allowing pure water entering the three-way valve 43 to flow into the workpiece 100 via the second port 43b. The third port 43c is connected to the nozzle unit 44, allowing pure water entering the three-way valve 43 to flow into the nozzle unit 44 via the third port 43c.

[0062] The nozzle unit 44 is a water outlet device that sprays pure water. The nozzle unit 44 is positioned adjacent to the mounting bracket 1, and its water outlet direction faces the mounting bracket 1. During the cleaning phase, the first cleaning component 3 uses cleaning fluid to rinse the interior of the workpiece 100, while the nozzle assembly of the second cleaning component 4 uses pure water to rinse the exterior of the workpiece 100. After rinsing with cleaning fluid, the second cleaning component 4 then uses pure water for a secondary cleaning of the interior of the workpiece 100.

[0063] Specifically, when the workpiece 100 to be cleaned is a coating slit extrusion die, the water outlet direction of the nozzle unit 44 can be aligned with the slit of the coating slit extrusion die. While the first cleaning component 3 uses cleaning fluid to rinse the inside of the coating slit extrusion die, the nozzle assembly of the second cleaning component 4 uses pure water to rinse the slit portion of the coating slit extrusion die, so that the slurry flushed out from the slit can be promptly washed away by the pure water.

[0064] The three-way valve 43 and the nozzle unit 44 allow the second cleaning assembly 4 to rinse the workpiece 100 from both inside and outside the workpiece 100. While the first cleaning assembly 3 is cleaning the workpiece 100 with the cleaning fluid, the second cleaning assembly 4 can simultaneously clean the workpiece 100 from the outside. This allows for the timely removal of any slurry flushed out from inside the workpiece 100, thereby improving the cleaning efficiency and effectiveness of the cleaning assembly.

[0065] refer to Figure 7 In some embodiments of this application, the nozzle unit 44 specifically includes a bracket 441, a nozzle tube 442, and a nozzle 443.

[0066] Nozzle 443 is the structure used for spraying water. In the embodiments of this application, the specific structure of nozzle 443 can be selected according to actual needs. When the workpiece 100 to be cleaned is a coating slit extrusion die, nozzle 443 that can spray a fan-shaped water stream is preferably used. The water stream sprayed from nozzle 443 is dispersed into a fan-shaped surface at a 60-degree or other angle to better cover the full width of the die slit.

[0067] The nozzle tube 442 is a pipe structure connecting the third port 43c of the three-way valve 43 to the nozzle 443. In this embodiment, the nozzle 443 is radially connected to the nozzle tube 442. One end of the nozzle tube 442 along its own axial direction is sealed with a plug or similar structure, and the other end is connected to the third port 43c of the three-way valve 43. There can be only one nozzle 443, or two, three, four, or even more. When multiple nozzles 443 are provided, they are evenly distributed along the axial direction of the nozzle tube 442.

[0068] The bracket 441 is a mounting structure for installing the nozzle pipe 442 and the nozzle 443. The bracket 441 has a mounting cavity 441a, and an opening 441b communicating with the mounting cavity 441a is provided on the side of the bracket 441 facing the mounting frame 1. The nozzle pipe 442 is movably installed in the mounting cavity 441a, and the nozzle 443 communicating with the nozzle pipe 442 extends out from the opening 441b to clean the workpiece 100 to be cleaned on the mounting frame 1. Specifically, in this embodiment, the bracket 441 includes a crossbeam 4411 and a longitudinal beam 4412. The longitudinal beam 4412 extends along the direction of gravity, and one end of the longitudinal beam 4412 is fixedly connected to the crossbeam 4411 to maintain the crossbeam 4411 at a predetermined height. A horizontal beam 4411 extends horizontally and has a mounting cavity 441a within it. The extension direction of the mounting cavity 441a is consistent with the extension direction of the horizontal beam 4411, and the cross-sectional shape of the mounting cavity 441a is adapted to the shape of the nozzle pipe 442. An opening 441b communicating with the mounting cavity 441a is formed on the surface of the horizontal beam 4411, and the opening 441b also extends along the extension direction of the horizontal beam 4411. During installation, the nozzle pipe 442 is inserted into the mounting cavity 441a and connected to the third port 43c of the three-way valve 43 via a pipe. The nozzle 443 extends out from the opening 441b communicating with the mounting cavity 441a.

[0069] When the type or size of the workpiece 100 to be cleaned changes, moving the nozzle pipe 442 changes the relative position of the nozzle 443 and the bracket 441. This facilitates alignment between the nozzle 443 and the workpiece 100, ensuring effective cleaning. Furthermore, the adjustable positions of the nozzle 443 and nozzle pipe 442 relative to the bracket 441 enhance the adaptability of the cleaning device to different types and sizes of workpieces 100.

[0070] refer to Figure 7To better accommodate different types and sizes of workpieces 100 to be cleaned, in this embodiment, the longitudinal beam 4412 of the support 441 may include a first portion 4412a and a second portion 4412b, both extending along the direction of gravity. One of the first portion 4412a and the second portion 4412b is inserted into the other of the first portion 4412a and the second portion 4412b; in other words, the first portion 4412a is inserted into the second portion 4412b, or the second portion 4412b is inserted into the first portion 4412a. Preferably, the first portion 4412a is inserted into the second portion 4412b. A guide rail is provided in the second portion 4412b, and a slider is provided on the first portion 4412a, with the slider slidably connected to the guide rail. The first portion 4412a is fixedly connected to the aforementioned crossbeam 4411. When the first part 4412a slides relative to the second part 4412b, the height of the crossbeam 4411 can change accordingly to accommodate different types and sizes of workpieces 100 to be cleaned.

[0071] refer to Figure 1 In some embodiments of this application, the cleaning device further includes a dryer 5. In these embodiments, the dryer 5 can be a high-pressure air pump with an air source. The air source is filled with a protective drying gas such as nitrogen. After cleaning the workpiece 100 with cleaning liquid and pure water, the dryer 5 blows drying gas into the workpiece 100. This accelerates the evaporation of residual pure water in the workpiece 100 and removes excess moisture from the workpiece 100 using the drying gas. In other words, the dryer 5 prevents pure water from remaining in the workpiece 100, further ensuring the cleaning effect after cleaning.

[0072] refer to Figure 1 In some embodiments of this application, the mounting frame 1 includes a frame 11 and a stop block 12.

[0073] The frame 11 is the structure used to support the workpiece 100 to be cleaned. (Reference) Figure 2 In this embodiment, the frame 11 is specifically a platform structure, comprising a plurality of support columns 111 extending along the direction of gravity and support platforms 112 fixedly connected to the ends of the support columns 111. The support platforms 112 have the following features along their horizontal edges: Figure 1 The continuous enclosure 113 shown is to prevent cleaning fluid and pure water from overflowing into the external environment, thereby reducing pollution to the external environment. (Reference) Figure 1 A waste liquid tank 8 can be connected to the side of the frame 11 facing the ground. The inlet of the waste liquid tank 8 is connected to the space inside the enclosure 113 to collect the waste liquid after cleaning.

[0074] The stop block 12 is the structure used to clamp the workpiece 100 to be cleaned. Multiple stop blocks 12 are provided, and the number can be three, four, five, or even more, forming an installation space 13 for mounting the workpiece 100. In this embodiment, when the workpiece 100 to be cleaned is a slit extrusion die, preferably, four stop blocks 12 are provided. The four stop blocks 12 are arranged in two rows and two columns on the support platform 112 of the frame 11. The extending direction of the stop blocks 12 is in the same direction as the direction of gravity, and the cross-section of each stop block 12 along the direction of gravity is uniformly L-shaped. After the slit extrusion die is placed in the installation space 13, each stop block 12 is pressed tightly against the four corners of the slit extrusion die to prevent the slit extrusion die from shifting during cleaning. Of course, the block 12 can also be a cubic block structure. When clamping the coating slit extrusion die, multiple blocks 12 are pressed against the surface of the coating slit extrusion die from different directions so that the coating slit extrusion die is clamped and fixed on the frame 11.

[0075] Multiple stops 12 are connected to the frame 11 in a movable manner. Specifically, a through groove can be provided on the support platform 112 of the frame 11, through which screws, bolts, and other connecting parts pass and connect to the stops 12. When the position of the stops 12 needs to be adjusted, the fasteners are loosened so that the stops 12 can move closer to or further away from each other along the extension direction of the through groove. At this time, the installation space 13 enclosed by the multiple stops 12 increases or decreases accordingly. After the stops 12 are pressed against the workpiece 100 to be cleaned, the fasteners are tightened to fix the stops 12 in the current position. Because the multiple stops 12 are connected to the frame 11 in a movable manner, the mounting frame 1 can install more types and sizes of workpieces 100 to be cleaned, thereby enabling the cleaning device to be adapted to different types and sizes of workpieces 100 to be cleaned.

[0076] refer to Figure 2 In some embodiments of this application, multiple vibrators 2 are provided, and the multiple vibrators 2 are arranged in an array. This allows the cleaning fluid inside the workpiece 100 to receive a more comprehensive and uniform vibration effect, thus helping to ensure the consistency and comprehensiveness of the cleaning effect inside the workpiece 100. In the embodiments of this application, the spacing between the vibrators 2 can be set according to actual needs. For example, the spacing between the vibrators 2 can be 40mm to ensure that the power density of the multiple vibrators 2 is not less than 0.5W / cm². 2 .

[0077] For ease of use, the cleaning device can be equipped with a control unit. The control unit is electrically connected to the aforementioned first cleaning pump 32, second cleaning pump 42, heating unit 33, three-way valve 43, dryer 5, etc., to control the cleaning device to automatically clean the workpiece 100 to be cleaned according to a preset method. For example, in this embodiment, the cleaning device performs the cleaning operation under the control of the control unit in the following manner:

[0078] Installation phase: Install the workpiece 100 to be cleaned onto the mounting bracket 1 of the cleaning device, and use a pipe seal to connect the heat exchange tube 331 of the heating unit 33 to the workpiece 100 to be cleaned.

[0079] Pre-treatment stage: The control unit starts the first cleaning pump 32 and the heating unit 33, so that the cleaning liquid in the first storage tank 31, after being filtered by the filter 34 and heated by the heating unit 33, enters the workpiece 100 to be cleaned at a temperature of 40°C, rinsing the inside of the workpiece 100 for 10-15 minutes. At this time, the vibrator 2 starts synchronously to accelerate the separation of the slurry.

[0080] Main cleaning stage: After the pretreatment stage is completed, the control unit controls the second cleaning pump 42 to start, controls the three-way valve 43 to connect the second storage tank 41 and the nozzle unit 44, and controls the heating unit 33 to heat the cleaning solution to 55°C. At this time, the first cleaning component 3 cleans the inside of the workpiece 100 to be cleaned with the 55°C cleaning solution, the second cleaning component 4 uses pure water to rinse the outside of the workpiece 100 to be cleaned in a fan-shaped water flow, and the vibrator 2 vibrates to accelerate the removal of the slurry.

[0081] Post-processing stage: After the main cleaning stage is completed, the control unit shuts down the first cleaning pump 32, heating unit 33, and vibrator 2; the second port 43b of the three-way valve 43 is connected to the workpiece 100 to be cleaned via a pipeline seal, and the three-way valve 43 is controlled to connect the second liquid storage tank 41 to the inside of the workpiece 100 to be cleaned. At this time, the second cleaning component 4 uses pure water to rinse the residual cleaning liquid and a small amount of residue inside the workpiece 100 to be cleaned.

[0082] Drying stage: After the post-processing stage is completed, the control unit shuts off the second cleaning pump 42 and connects the dryer 5 to the workpiece 100 to be cleaned via a sealed pipeline. The control unit controls the dryer 5 to start, introducing 80°C nitrogen gas into the workpiece 100 to be cleaned, and maintaining the 80°C nitrogen gas to purge the inside of the workpiece 100 to be cleaned for 20 minutes to remove residual moisture inside the workpiece 100 to be cleaned.

[0083] refer to Figure 1In some embodiments of this application, the first cleaning component 3, the second cleaning component 4, and other structures can be integrated onto a single frame 6. The shape of the frame 6 can be determined according to actual needs; for example, the frame 6 can be a box structure or a frame structure 11. Preferably, the frame 6 adopts a trolley structure. That is, the frame 6 has a support plate 63, with legs 62 and rollers 61 below the support plate 63, and a handle 64 on the other side of the support plate 63. In use, the handle 64 and rollers 61 can be used to move the frame 6 to the vicinity of the workpiece 100 to be cleaned. This improves the ease of use of the workpiece 100. The legs 62 can be adjusted and mounted on the support plate 63 using screws, telescopic rods, or other structures. After the frame 6 is moved into position, the legs 62 are lowered so that the support plate 63 is fixedly supported on the ground. The first liquid storage tank 31, the first cleaning pump 32, the second liquid storage tank 41, the second cleaning pump 42, the heating unit 33, the filter 34 and other structures are all fixedly installed on the support plate 63 and are connected to each other through pipes.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0085] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or at least two of the features. In the description of this utility model, unless otherwise stated, "at least two" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0086] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "left", "right", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0087] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or at least two embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A cleaning device, characterized in that, include: Mounting bracket (1), the mounting bracket (1) is used to mount the workpiece (100) to be cleaned; Vibrator (2), the vibrator (2) is connected to the mounting bracket (1); The first cleaning assembly (3) includes a first liquid storage tank (31) and a first cleaning pump (32). The first liquid storage tank (31) is connected to the inlet of the first cleaning pump (32), and the outlet of the first cleaning pump (32) is used to communicate with the interior of the workpiece (100) to be cleaned. The first liquid storage tank (31) is used to contain cleaning liquid. The second cleaning assembly (4) includes a second liquid storage tank (41) and a second cleaning pump (42). The second liquid storage tank (41) is connected to the inlet of the second cleaning pump (42), and the outlet of the second cleaning pump (42) is used to communicate with the interior of the workpiece (100) to be cleaned. The second liquid storage tank (41) is used to contain pure water.

2. The cleaning device according to claim 1, characterized in that, The first cleaning assembly (3) also includes a heating unit (33); The heating unit (33) includes a heat exchange tube (331), a heater (332), and an insulation box (333); the heater (332) and the heat exchange tube (331) are disposed inside the insulation box (333), and the heating end of the heater (332) is in contact with the heat exchange tube (331); the heat exchange tube (331) is connected to the first liquid storage tank (31).

3. The cleaning device according to claim 2, characterized in that, The first cleaning assembly (3) further includes a filter (34) which is in communication with the first liquid storage tank (31).

4. The cleaning device according to claim 3, characterized in that, The inlet of the first cleaning pump (32) is connected to the outlet of the first storage tank (31), and the outlet of the first cleaning pump (32) is connected to the inlet of the filter (34); the inlet of the heat exchange tube (331) is connected to the outlet of the filter (34), and the outlet of the heat exchange tube (331) is used to communicate with the interior of the workpiece (100) to be cleaned.

5. The cleaning device according to claim 3, characterized in that, The inlet of the filter (34) is located at the end of the filter (34) facing the ground, and the outlet of the filter (34) is located at the end of the filter (34) away from the ground.

6. The cleaning apparatus according to any one of claims 1-5, characterized in that, The second cleaning assembly (4) also includes a three-way valve (43) and a nozzle unit (44); The three-way valve (43) has a first port (43a), a second port (43b), and a third port (43c); the first port (43a) is connected to the second liquid storage tank (41), the second port (43b) is used to communicate with the interior of the workpiece (100) to be cleaned, and the third port (43c) is connected to the nozzle unit (44); The nozzle unit (44) is located adjacent to the mounting bracket (1), and the water outlet direction of the nozzle unit (44) is towards the mounting bracket (1).

7. The cleaning apparatus according to claim 6, characterized in that, The nozzle unit (44) includes a bracket (441), a nozzle tube (442), and a nozzle (443); The bracket (441) has a mounting cavity (441a), and the nozzle tube (442) is movably installed in the mounting cavity (441a). The bracket (441) has an opening (441b) on the side facing the mounting frame (1), and the opening (441b) communicates with the mounting cavity (441a). One end of the nozzle tube (442) is connected to the third port (43c). The other end of the nozzle tube (442) is connected to the nozzle (443), and the nozzle (443) extends out from the opening (441b).

8. The cleaning apparatus according to any one of claims 1-5, characterized in that, The cleaning device also includes a dryer (5); the dryer (5) is used to introduce gas into the workpiece (100) to be cleaned.

9. The cleaning apparatus according to any one of claims 1-5, characterized in that, The mounting frame (1) includes a frame body (11) and a stop block (12); Multiple stops (12) are provided, and the multiple stops (12) are movably connected to the frame (11); the multiple stops (12) enclose an installation space (13) for installing the workpiece (100) to be cleaned; when the workpiece (100) to be cleaned is installed in the installation space (13), the multiple stops (12) clamp the workpiece (100) to be cleaned.

10. The cleaning apparatus according to any one of claims 1-5, characterized in that, The vibrator (2) is provided in multiple ways, and the multiple vibrators (2) are arranged in an array.

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