Automatic cleaning method and device for coating tool bit

Abstract

The invention discloses an automatic cleaning method and device for a coating tool bit. The method comprises the following steps: in response to an instruction for automatically cleaning the coating tool bit, transmitting first liquid to a coating tool bit storage cavity from a first interface of the coating tool bit through a first pipeline; second liquid in the material storage cavity is extracted from a second connector of the coating tool bit through a second pipeline; the second connector is located on the side away from the discharging port in the coating tool bit storage cavity and located on the same side as the feeding port of the coating tool bit storage cavity. By the adoption of the technical scheme, the first liquid is conveyed through the first pipeline, cleaning of the coating glue in the material storage cavity of the coating tool bit is completed, the second liquid in the material storage cavity is extracted from the second connector of the coating tool bit through the second pipeline, and therefore the first liquid can be completely mixed with the coating glue in the material storage cavity of the coating tool bit; therefore, the coating glue is prevented from remaining in the storage cavity of the coating tool bit after automatic cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of coating blade maintenance, and in particular to an automatic coating blade cleaning method and device. Background Art

[0002] The coating head is a key component in the coating equipment, used to evenly apply glue, paint, ink and other coatings on the surface of various materials.

[0003] When the coating cutter head applies coating glue, different products require different coating glue. Therefore, when changing products, the coating cutter head needs to be cleaned to discharge the coating glue inside the coating cutter head. However, in the existing automatic cleaning process, the coating cutter head cleaning effect is not ideal, and there is a problem of coating glue residue. Summary of the Invention

[0004] The present invention provides a coating blade automatic cleaning method and device to improve the coating blade automatic cleaning effect.

[0005] According to one aspect of the present invention, a method for automatically cleaning a coating blade is provided, the method comprising:

[0006] In response to an instruction to automatically clean the coating blade head, a first liquid is transferred from the first interface of the coating blade head to the coating blade head storage chamber through the first pipe until the transfer time of the first liquid to the coating blade head storage chamber reaches a preset time and / or the volume of the first liquid transferred by the first pipe to the coating blade head storage chamber reaches a preset volume; the first liquid is a cleaning liquid used to clean the coating blade head; the first interface is an inlet for the coating blade head;

[0007] The second liquid in the storage chamber is extracted from the second interface of the coating head through the second pipe; the second liquid is a mixed liquid of the cleaning liquid and the coating glue in the storage chamber of the coating head; the second interface is located on the side away from the discharge port of the coating head storage chamber, and is located on the same side as the feed port of the coating head storage chamber.

[0008] According to another aspect of the present invention, there is provided an automatic coating head cleaning device, comprising:

[0009] a first liquid input module, configured to transmit a first liquid from a first interface of the coating blade head to a material storage chamber of the coating blade head through a first pipe in response to an instruction to automatically clean the coating blade head, until a transmission time of the first liquid from the first pipe to the material storage chamber of the coating blade head reaches a preset time and / or a volume of the first liquid transmitted from the first pipe to the material storage chamber of the coating blade head reaches a preset volume; the first liquid is a cleaning liquid for cleaning the coating blade head; and the first interface is an inlet for the coating blade head;

[0010] The second liquid extraction module is used to extract the second liquid in the storage chamber from the second interface of the coating head through the second pipe; the second liquid is a mixture of cleaning liquid and coating glue in the coating head storage chamber; the second interface is located on the side away from the discharge port in the coating head storage chamber, and is located on the same side as the inlet port of the coating head storage chamber.

[0011] The technical solution of the embodiment of the present invention is to transmit a first liquid to the coating cutter head storage chamber through a first pipe in response to an instruction for automatic cleaning of the coating cutter head, so as to flush the coating glue in the coating cutter head storage chamber, until the transmission time of the first pipe to transmit the first liquid to the coating cutter head storage chamber reaches a preset time and / or the volume of the first liquid transmitted by the first pipe to the coating cutter head storage chamber reaches a preset volume, so as to complete the cleaning of the coating glue in the coating cutter head storage chamber, and ensure the cleaning effect of the coating cutter head by the transmission time and / or the volume of the first liquid transmitted; the second liquid in the storage chamber is extracted from the second interface of the coating cutter head through a second pipe, so that the second liquid in the coating cutter head storage chamber and the gas transmitted to the inside of the coating cutter head along with the first liquid are promptly extracted, so that the first liquid can be completely mixed with the coating glue in the coating cutter head storage chamber, thereby avoiding residual coating glue in the coating cutter head storage chamber after automatic cleaning.

[0012] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a flow chart of a coating blade automatic cleaning method provided in accordance with the first embodiment of the present invention;

[0015] Figure 2 2 is a schematic diagram of an automatic cleaning system for a coating blade provided according to an embodiment of the present invention;

[0016] Figure 3 This is a flow chart of another automatic cleaning method for a coating blade provided in accordance with the second embodiment of the present invention;

[0017] Figure 4 Schematic diagram of the structure of an automatic cleaning device for a coating blade provided according to the third embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] Example 1

[0021] Figure 1 The present invention provides a flowchart of a coating blade automatic cleaning method. This embodiment is applicable to the case of automatic cleaning of the coating blade. The method can be performed by an automatic coating blade cleaning device. Figure 1 As shown, the method includes:

[0022] S110. In response to an instruction to automatically clean the coating blade head, a first liquid is transferred from the first interface of the coating blade head to the coating blade head storage chamber through a first pipe; the first liquid is a cleaning liquid used to clean the coating blade head; and the first interface is an inlet of the coating blade head.

[0023] Coating blades are used to evenly apply fluid materials to surfaces. In addition to applying adhesives, coating blades can also apply paints, inks, and other materials. By adjusting the gap and angle between the coating blade and the object, and controlling the flow rate and coating speed of the fluid material, the coating blade is scraped across the surface, applying the fluid material. Coating blades can be any of the following types: comma blades, straight blades, angled blades, and flexible blades.

[0024] The first pipe is used to transport the first liquid to the coating blade. The first pipe is connected to the first interface of the coating blade. The first pipe is not located within the coating blade storage chamber. The first interface is the feed inlet of the coating blade. The curvature of the portion of the pipe in the area where the first pipe connects to the first interface is less than a predetermined curvature.

[0025] The first liquid dissolves and emulsifies the coating adhesive upon contact with the coating adhesive, thereby removing the coating adhesive from the surface of the coating blade storage chamber, thereby cleaning the coating adhesive. The first liquid can be obtained by mixing multiple cleaning liquids in a predetermined ratio. The first liquid can be generated by mixing multiple cleaning liquids during transmission through the first pipeline, or can be generated by mixing the multiple cleaning liquids first and then transmitted through the first pipeline.

[0026] The instruction for automatically cleaning the coating cutter head includes at least any of the following information: the duration of the first pipe transmitting the first liquid to the coating cutter head storage chamber, the volume of the first liquid transmitted to the coating cutter head storage chamber by the first pipe, and the number of times the coating cutter head is automatically cleaned.

[0027] In response to the instruction for automatic cleaning of the coating cutter head, the first liquid is transmitted to the coating cutter head storage chamber through the first pipe to flush the coating glue in the coating cutter head storage chamber, until the transmission time of the first liquid to the coating cutter head storage chamber by the first pipe reaches the preset time and / or the volume of the first liquid transmitted to the coating cutter head storage chamber by the first pipe reaches the preset volume, thereby completing the cleaning of the coating glue in the coating cutter head storage chamber.

[0028] For example, see Figure 2 , Figure 2 The coating blade is located at the bottom. The connection between the first pipe and the coating blade is the first interface, which is also the feed port of the coating blade. The first liquid enters the coating blade from the first pipe to clean the coating blade.

[0029] By stopping the injection of the first liquid only after the transmission time of the first pipe to the coating head storage chamber reaches the preset time and / or the volume of the first liquid transmitted by the first pipe to the coating head storage chamber reaches the preset volume, it is possible to ensure that the coating glue inside the coating head storage chamber can be cleaned as much as possible, thereby avoiding quality problems in the produced products due to the residue of another coating glue in the coating head when replacing the coating glue.

[0030] The first pipe can be made of any of the following materials: metal, plastic, glass, clay, and composite materials. A first pipe made of metal can be made of any of the following: steel pipe, copper pipe, and cast iron pipe. A first pipe made of plastic can be made of any of the following: polyvinyl chloride (PVC) pipe, polyethylene (PE) pipe, and polypropylene (PP) pipe. A first pipe made of composite materials can be made of any of the following: steel-plastic composite pipe and aluminum-plastic composite pipe. A single type of cleaning fluid can be made of any of the following: organic solvent-based, water-based, surfactant-based, alkaline, and acidic cleaning fluids.

[0031] S120. Extract the second liquid in the storage chamber from the second interface of the coating blade head through the second pipe; the second liquid is a mixed liquid of the cleaning liquid and the coating glue in the storage chamber of the coating blade head; the second interface is located on the side away from the discharge port in the storage chamber of the coating blade head, and is located on the same side as the feed port of the storage chamber of the coating blade head.

[0032] The second pipe is connected to the second interface of the coating cutter head. The second pipe is not located inside the coating cutter head storage chamber. The curvature of the portion of the pipe in the area where the second pipe is connected to the second interface is less than a preset curvature. When the second pipe extracts the second liquid, it extracts the gas inside the coating cutter head storage chamber. The gas inside the coating cutter head storage chamber is composed of the original gas inside the coating cutter head storage chamber and / or bubbles present in the first liquid when the first pipe transmits the first liquid.

[0033] The second pipe discharges the gas inside the coating cutter head storage chamber to avoid gas compression, which causes some areas inside the coating cutter head storage chamber to be unable to contact the first liquid. The gas inside the coating cutter head storage chamber is discharged, thereby increasing the contact area between the first liquid and the coating glue inside the coating cutter head storage chamber, and improving the first liquid's cleaning efficiency of the coating glue inside the coating cutter head storage chamber. The second pipe extracts the second liquid to discharge the coating glue that has been cleaned from the coating cutter head storage chamber, thereby reducing the need for the cleaned coating glue to be cleaned again by the subsequently transmitted first liquid, reducing the waste of the first liquid, and avoiding reducing the first liquid's cleaning efficiency of the coating glue inside the coating cutter head storage chamber.

[0034] The second pipe can be made of any of the following materials: metal, plastic, glass, clay, and composite materials. A second pipe made of metal can be made of any of the following: steel pipe, copper pipe, and cast iron pipe. A second pipe made of plastic can be made of any of the following: polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP). A second pipe made of composite materials can be made of any of the following: steel-plastic composite pipe and aluminum-plastic composite pipe.

[0035] For example, see Figure 2The second pipeline is connected to the second interface, and the second interface is adjacent to the first interface. Figure 2 The black triangle at the bottom of the diagram represents the coating head's outlet. While the first pipe delivers the first liquid to the coating head, the second pipe draws the second liquid from the coating head's second port. Due to its density, bubbles in the first liquid float in the second liquid and are then drawn away by the second pipe. As the first liquid is delivered and the second liquid is withdrawn, the coating adhesive inside the coating head is cleaned.

[0036] In an optional solution, when the second liquid in the storage chamber is extracted from the second interface of the coating blade head through the second pipe, steps A1-A2 are also included:

[0037] Step A1: Determine the liquid surface height of the second liquid in the second pipe.

[0038] Step A2: If the liquid surface height of the second liquid is less than the first preset liquid surface height, adjust the extraction speed of the second liquid in the second pipe; wherein the extraction speed of the second liquid in the second pipe is less than the transmission speed of the first liquid in the first pipe.

[0039] The liquid surface height can refer to the vertical distance from the second interface to the liquid surface of the second liquid in the second pipe. The liquid surface height indicates whether the second pipe can extract the second liquid from the coating head storage chamber. The liquid surface height can be determined by any of the following: an ultrasonic level gauge, a radar level gauge, a laser level gauge, or a pre-marked line on the second pipe.

[0040] If the extraction speed in the second pipe is too slow, the second liquid may not be extracted smoothly, which will eventually affect the cleaning effect of the automatic cleaning. Therefore, it is necessary to detect whether the second pipe can and whether it can continue to extract the second liquid. Therefore, the liquid surface height of the second liquid in the second pipe is used as a basis for judging whether the second pipe can and whether it can continue to extract the second liquid.

[0041] In this regard, the liquid surface height of the second liquid in the second pipe is determined. If the liquid surface height of the second liquid is less than the first preset liquid surface height, it is determined that the second pipe cannot extract the second liquid at the current moment, so the extraction speed of the second pipe for the second liquid is increased.

[0042] If the second channel's extraction speed for the second liquid is too high, the first liquid will be drawn away by the second channel before it has finished cleaning the coating adhesive in the coating head's reservoir, thereby affecting the coating head's cleaning effect. Therefore, when adjusting the second channel's extraction speed for the second liquid, the extraction speed of the second liquid in the second channel is slower than the transmission speed of the first liquid in the first channel.

[0043] By timely adjusting the extraction speed of the second liquid by the second pipe, the second liquid can be extracted in time, thereby avoiding the second liquid being unable to be extracted smoothly, affecting the cleaning effect of the automatic cleaning, and avoiding the first liquid being extracted by the second pipe when it has not fully cleaned the coating glue in the coating head storage chamber, causing waste of the first liquid and affecting the cleaning effect of the automatic cleaning.

[0044] In an optional solution, adjusting the extraction speed of the second liquid by the second pipeline includes:

[0045] The first liquid driving module is turned on; the first liquid driving module is installed inside the second pipe, and the first liquid driving module increases the flow speed of the second liquid in the second pipe by pushing the second liquid.

[0046] The first liquid driving module can be any one of the following: a centrifugal pump, a reciprocating pump, a gear pump, etc.

[0047] Regarding adjusting the extraction speed of the second liquid by the second pipeline, since the first liquid driving module is installed inside the second pipeline, the first liquid driving module is in direct contact with the second liquid. The first liquid driving module pushes the second liquid along the second liquid extraction direction, thereby accelerating the flow of the second liquid and increasing the extraction speed of the second liquid by the second pipeline.

[0048] In addition, the extraction speed of the second liquid by the second pipeline can be adjusted by adjusting the magnitude of the driving force of the first liquid driving module on the second liquid.

[0049] By adjusting the extraction speed of the second liquid through the first liquid driving module, the extraction speed of the second liquid can be adjusted more flexibly and quickly, thereby ensuring as much as possible that the second liquid can be extracted by the second pipeline in a timely manner, thereby further ensuring the cleaning effect of automatic cleaning.

[0050] In an optional solution, adjusting the extraction speed of the second liquid by the second pipeline includes:

[0051] The air pressure in the second pipe is reduced until the liquid surface height in the second pipe is greater than the first preset liquid surface height.

[0052] The air pressure can be the pressure exerted by the air in the second pipe on the second liquid. The air pressure can be adjusted by any one or more of the following methods: a vacuum pump extraction device and a negative pressure tank extraction system. The vacuum pump extraction device uses a vacuum pump to extract the air from the second pipe, thereby reducing the air pressure in the pipe, forming a negative pressure, and extracting the second liquid under the action of atmospheric pressure. The negative pressure tank extraction system first reduces the air pressure inside the negative pressure tank, then connects the second pipe to the negative pressure tank to form an atmospheric pressure difference between the negative pressure tank and the second pipe, and extracts the second liquid through the atmospheric pressure difference.

[0053] In addition to the first liquid driving module, the air pressure in the second pipeline is reduced through equipment such as a vacuum pump extraction device and a negative pressure tank extraction system to form an atmospheric pressure difference between the negative pressure tank and the second pipeline, and the second liquid is extracted through the atmospheric pressure difference.

[0054] By reducing the air pressure in the second pipe, the liquid surface height in the second pipe is made greater than the first preset liquid surface height, which can make the extraction speed of the second liquid in the second pipe more stable, thereby making it easier to adjust the flow rates of the first liquid and the second liquid, thereby ensuring the cleaning effect.

[0055] In an optional solution, after adjusting the extraction speed of the second liquid by the second pipeline, the method further includes:

[0056] If the liquid surface height in the second pipe is lower than the first preset liquid surface height for a preset time, the transmission of the first liquid is stopped and a warning is issued.

[0057] After adjusting the extraction speed of the second liquid by the second pipe, if the time for the liquid surface height in the second pipe to be less than the first preset liquid surface height reaches the preset time, it indicates that the second pipe cannot smoothly extract the second liquid. At this time, the transmission of the first liquid will be stopped to avoid waste of the first liquid, and a warning will be issued to the outside to indicate that there is an abnormality in the automatic cleaning process.

[0058] By adopting the technical solution of the present application, in response to the instruction for automatic cleaning of the coating cutter head, the first liquid is transmitted to the coating cutter head storage chamber through the first pipe to flush the coating glue in the coating cutter head storage chamber, until the transmission time of the first pipe to transmit the first liquid to the coating cutter head storage chamber reaches the preset time and / or the volume of the first liquid transmitted to the coating cutter head storage chamber by the first pipe reaches the preset volume, so as to complete the cleaning of the coating glue in the coating cutter head storage chamber, and ensure the cleaning effect of the coating cutter head by the transmission time and / or the volume of the first liquid transmitted; the second liquid in the storage chamber is extracted from the second interface of the coating cutter head through the second pipe, so that the second liquid in the coating cutter head storage chamber and the gas transmitted to the inside of the coating cutter head with the first liquid are timely extracted, so that the first liquid can be completely mixed with the coating glue in the coating cutter head storage chamber, thereby avoiding residual coating glue in the coating cutter head storage chamber after automatic cleaning.

[0059] Example 2

[0060] Figure 3 The present invention provides a flowchart of another method for automatically cleaning a coating blade. This embodiment further optimizes the process after responding to the instruction to automatically clean the coating blade in the above embodiment. This embodiment can be combined with various optional solutions in one or more of the above embodiments. Figure 3 As shown, the automatic cleaning method of the coating blade of this embodiment may include the following steps:

[0061] S210: In response to an instruction to automatically clean the coating cutter head, determine the coating glue type in the coating glue storage cavity of the coating cutter head.

[0062] The coating glue type may be determined by one or more of the following: reading the coating glue type input by the user and determining it according to a preset sequence of coating glue usage at different times and the current time.

[0063] S220. Determine the type of cleaning fluid according to the type of coating glue.

[0064] The cleaning fluid can be a liquid used to clean the coating adhesive. Upon contact with the coating adhesive, the cleaning fluid dissolves and emulsifies the coating adhesive, removing the coating adhesive from the surface of the coating head storage chamber, thereby cleaning the coating adhesive. Examples of cleaning fluids include one or more of the following: organic solvent-based cleaning fluids, aqueous cleaning fluids, and specialized cleaning fluids.

[0065] Since different cleaning fluids have different cleaning efficiencies for different coating adhesives, determining the type of cleaning fluid based on the type of coating adhesive enables subsequent cleaning processes to use cleaning fluids with higher cleaning efficiency to clean the coating adhesive, thereby improving the cleaning efficiency of the coating adhesive and reducing waste of cleaning fluid.

[0066] S230. Determine the second valve based on the type of cleaning liquid and each first valve; the first valve is used to start or stop the transmission of cleaning liquid to the first pipeline; each first valve corresponds to a different type of cleaning liquid; the second valve is used to start or stop the transmission of the first liquid to the first pipeline; the cleaning efficiency of the first liquid on the coating glue in the coating cutter head storage chamber is greater than the cleaning efficiency of the cleaning liquid corresponding to each first valve on the coating glue in the coating cutter head storage chamber.

[0067] According to the type of the cleaning fluid, a first valve corresponding to the type of the cleaning fluid is found among the first valves to serve as the second valve.

[0068] See also Figure 2 To improve automatic cleaning efficiency, the first pipeline simultaneously connects multiple types of cleaning fluids, each of which includes a first valve. When the first valve is opened, the cleaning fluid corresponding to the first valve is transferred through the first pipeline to the coating head storage chamber to clean the coating adhesive inside the coating head storage chamber.

[0069] By determining the second valve according to the type of cleaning liquid and each first valve, the valve can be opened more quickly and accurately during subsequent first liquid transmission.

[0070] S240: Open the second valve and transmit the first liquid to the first interface through the first pipeline.

[0071] S250: Adjust the flow rate of the first liquid in the first pipe until the flow rate of the first liquid in the first pipe is greater than a first preset flow rate.

[0072] During the cleaning process, if the flow rate of the first liquid is too low, the material exchange with the coating glue in the coating head storage chamber will be insufficient and the adhesion between the coating glue and the surface of the coating head storage chamber cannot be destroyed, thereby reducing the cleaning effect.

[0073] To this end, the flow rate of the first liquid in the first pipe is adjusted until the flow rate of the first liquid in the first pipe is greater than the first preset flow rate to ensure the cleaning effect of the first liquid on the coating glue in the coating head storage chamber.

[0074] In an optional solution, adjusting the flow rate of the first liquid in the first pipe includes:

[0075] If the flow rate of the first liquid in the first pipeline is less than the first preset flow rate, the opening of the second valve is increased and / or the second liquid driving module is turned on.

[0076] The second liquid driving module is installed inside the first pipe. The second liquid driving module increases the flow rate of the first liquid in the first pipe by pushing the first liquid. The first liquid driving module can be any of the following: a centrifugal pump, a reciprocating pump, a gear pump, etc.

[0077] If the flow rate of the first liquid in the first pipe is less than the first preset flow rate, the second liquid driving module is activated to drive the second liquid, thereby increasing the flow rate of the first liquid in the first pipe. Alternatively, the second valve opening may be increased to increase the volume of the first liquid flowing into the first pipe per unit time, thereby increasing the flow rate of the first liquid in the first pipe.

[0078] By increasing the opening of the second valve and / or opening the second liquid drive module, the flow rate of the first liquid in the first pipe can be quickly and stably increased, thereby ensuring the cleaning effect of the first liquid on the coating glue in the coating head storage chamber.

[0079] In an optional solution, adjusting the flow rate of the first liquid in the first pipe to be greater than a first preset flow rate includes:

[0080] If the flow velocity of the first liquid in the first pipeline is less than the first preset flow velocity, the opening of the second valve is increased and / or the first dynamic pressure is increased.

[0081] The first dynamic pressure is the magnitude of the force exerted on a unit volume of the first liquid when the first liquid is supplied to the first pipe.

[0082] In addition to the second liquid driving module, the first dynamic pressure supplied to the first liquid can also be increased during the transmission of the first liquid, thereby increasing the flow rate of the first liquid. By increasing the first dynamic pressure and increasing the flow rate of the first liquid, the flow rate of the first fluid can be made more stable, thereby improving the automatic cleaning effect.

[0083] In an optional solution, after adjusting the flow rate of the first liquid in the first pipe, the method further includes:

[0084] If the flow rate of the first liquid in the first pipe is less than the first preset flow rate for a preset time, the transmission of the first liquid is stopped and a warning is issued.

[0085] When the flow rate of the first liquid in the first pipe is less than the first preset flow rate for a preset time, it is determined that the flow rate of the first liquid in the first pipe cannot be greater than the first preset flow rate, thereby affecting the cleaning of the coating head storage chamber by the first liquid. At this time, the transmission of the first liquid is stopped to avoid waste of the first liquid, and an alarm is issued to indicate that automatic cleaning cannot be completed.

[0086] When the flow rate of the first liquid in the first pipe is less than the first preset flow rate for a preset time, the transmission of the first liquid is stopped and a warning is issued. This can reduce the waste of the first liquid when it is determined that automatic cleaning cannot be completed, and inform the user through the warning to switch to manual cleaning or make corrections in time, thereby preventing the stagnation of production progress.

[0087] In an optional solution, after responding to the instruction to automatically clean the coating blade, the method further includes:

[0088] Move the coating blade to the first position.

[0089] When the coating blade is at the first position, the liquid discharged from the discharge port falls into the liquid tank.

[0090] The liquid tank is used to receive the second liquid flowing out of the coating head outlet. The liquid tank can be made of any of the following materials: plastic, metal, glass, etc. The liquid tank can be shaped in any of the following shapes, or a combination of these: conical, cylindrical, and rectangular.

[0091] When the second liquid in the storage chamber is extracted from the second interface of the coating blade head through the second pipe, part of the liquid may flow out from the discharge port of the coating blade head, causing pollution to the coating equipment.

[0092] Therefore, after responding to the instruction to automatically clean the coating blade, the coating blade is adjusted to the first position, allowing the second liquid flowing out of the coating blade from the discharge port to flow into the liquid tank to avoid contamination of the coating equipment.

[0093] S260. Extract the second liquid in the storage chamber from the second interface of the coating blade head through the second pipe; the second liquid is a mixed liquid of the cleaning liquid and the coating glue in the storage chamber of the coating blade head; the second interface is located on the side away from the discharge port in the storage chamber of the coating blade head, and is located on the same side as the feed port of the storage chamber of the coating blade head.

[0094] By adopting the technical solution of the present application, the coating glue type of the coating glue in the coating head storage chamber is determined in response to the instruction for automatic cleaning of the coating head; the cleaning liquid type is determined according to the coating glue type, so that the subsequent cleaning process can use a cleaning liquid with higher cleaning efficiency to clean the coating glue, thereby improving the cleaning efficiency of cleaning the coating glue; the second valve is determined according to the cleaning liquid type and each first valve; the second valve is opened and the first liquid is transmitted to the first interface based on the first pipeline; the flow rate of the first liquid in the first pipeline is adjusted until the flow rate of the first liquid in the first pipeline is greater than the first preset flow rate, so as to ensure the cleaning effect of the first liquid on the coating glue in the coating head storage chamber.

[0095] Example 3

[0096] Figure 4 The present invention provides a structural block diagram of an automatic coating blade cleaning device. This embodiment is applicable to the automatic cleaning of coating blades. The automatic coating blade cleaning device can be implemented in the form of hardware and / or software. The automatic coating blade cleaning device can be configured in an electronic device with data processing capabilities. Figure 4As shown, the automatic coating blade cleaning device of this embodiment may include: a first liquid input module 310 and a second liquid extraction module 320 .

[0097] in:

[0098] The first liquid input module 310 is configured to, in response to an instruction to automatically clean the coating blade, transfer a first liquid from the first interface of the coating blade to the coating blade storage chamber through the first pipe until the time for transferring the first liquid from the first pipe to the coating blade storage chamber reaches a preset time and / or the volume of the first liquid transferred from the first pipe to the coating blade storage chamber reaches a preset volume; the first liquid is a cleaning liquid for cleaning the coating blade; the first interface is an inlet for the coating blade;

[0099] The second liquid extraction module 320 is used to extract the second liquid in the storage chamber from the second interface of the coating blade head through the second pipe; the second liquid is a mixed liquid of the cleaning liquid and the coating glue in the storage chamber of the coating blade head; the second interface is adjacent to the feed port of the coating blade head and is in the same plane.

[0100] Based on the above embodiment, optionally, when the second liquid in the storage chamber is extracted from the second interface of the coating blade head through the second pipe, the method further includes:

[0101] determining a liquid surface height of a second liquid in the second conduit;

[0102] If the liquid surface height of the second liquid is lower than the first preset liquid surface height, the extraction speed of the second liquid by the second pipe is adjusted; wherein the extraction speed of the second liquid in the second pipe is lower than the transmission speed of the first liquid in the first pipe.

[0103] Based on the above embodiment, optionally, adjusting the extraction speed of the second liquid by the second pipeline includes:

[0104] Turn on the first liquid driving module; the first liquid driving module is installed inside the second pipe, and the first liquid driving module increases the flow speed of the second liquid in the second pipe by pushing the second liquid.

[0105] Based on the above embodiment, optionally, adjusting the extraction speed of the second liquid by the second pipeline includes:

[0106] The air pressure in the second pipe is reduced until the liquid surface height in the second pipe is greater than the first preset liquid surface height.

[0107] Based on the above embodiment, optionally, after adjusting the extraction speed of the second liquid by the second pipeline, the method further includes:

[0108] If the liquid surface height in the second pipe is lower than the first preset liquid surface height for a preset time, the transmission of the first liquid is stopped and a warning is issued.

[0109] Based on the above embodiment, optionally, after responding to the instruction to automatically clean the coating blade, the method further includes:

[0110] Determine the type of coating glue in the coating cutter head storage cavity;

[0111] Determine the type of cleaning fluid according to the type of coating glue;

[0112] The second valve is determined based on the type of cleaning liquid and each first valve; the first valve is used to start or stop the transmission of cleaning liquid to the first pipeline; the cleaning liquid type corresponding to each first valve is different; the second valve is used to start or stop the transmission of the first liquid to the first pipeline; the cleaning efficiency of the first liquid on the coating glue in the coating cutter head storage chamber is greater than the cleaning efficiency of the cleaning liquid corresponding to each first valve on the coating glue in the coating cutter head storage chamber;

[0113] Accordingly, the first liquid is transferred from the first interface of the coating blade head to the storage chamber through the first pipeline, including:

[0114] Opening the second valve and transmitting the first liquid to the first interface through the first pipeline;

[0115] The flow rate of the first liquid in the first pipe is adjusted until the flow rate of the first liquid in the first pipe is greater than a first preset flow rate.

[0116] Based on the above embodiment, optionally, adjusting the flow rate of the first liquid in the first pipe includes:

[0117] If the flow rate of the first liquid in the first pipeline is less than the first preset flow rate, the opening of the second valve is increased and / or the second liquid driving module is turned on; the second liquid driving module is installed inside the first pipeline, and the second liquid driving module increases the flow rate of the first liquid in the first pipeline by pushing the first liquid.

[0118] Based on the above embodiment, optionally, adjusting the flow rate of the first liquid in the first pipe to be greater than a first preset flow rate includes:

[0119] If the flow rate of the first liquid in the first pipeline is less than the first preset flow rate, the opening of the second valve is increased and / or the first dynamic pressure is increased; the first dynamic pressure is the force applied to a unit volume of the first liquid when the first liquid is provided to the first pipeline.

[0120] Based on the above embodiment, optionally, after adjusting the flow rate of the first liquid in the first pipe, the method further includes:

[0121] If the flow rate of the first liquid in the first pipe is less than the first preset flow rate for a preset time, the transmission of the first liquid is stopped and a warning is issued.

[0122] Based on the above embodiment, optionally, after responding to the instruction to automatically clean the coating blade, the method further includes:

[0123] The coating blade is moved to a first position; when the coating blade is at the first position, the liquid discharged from the discharge port falls into a liquid tank; the liquid tank is used to receive the second liquid flowing out of the coating blade discharge port.

[0124] The automatic cleaning device for a coating cutter head provided in an embodiment of the present invention transmits a first liquid to a storage chamber of the coating cutter head through a first pipe in response to an instruction for automatic cleaning of the coating cutter head, so as to flush the coating glue in the storage chamber of the coating cutter head, until the transmission time of the first liquid to the storage chamber of the coating cutter head through the first pipe reaches a preset time and / or the volume of the first liquid transmitted to the storage chamber of the coating cutter head through the first pipe reaches a preset volume, so as to complete the cleaning of the coating glue in the storage chamber of the coating cutter head, and ensure the cleaning effect of the coating cutter head through the transmission time and / or the volume of the first liquid transmitted; the second liquid in the storage chamber is extracted from the second interface of the coating cutter head through a second pipe, so that the second liquid in the storage chamber of the coating cutter head and the gas transmitted to the inside of the coating cutter head along with the first liquid are extracted in time, so that the first liquid can be completely mixed with the coating glue in the storage chamber of the coating cutter head, thereby avoiding residual coating glue in the storage chamber of the coating cutter head after automatic cleaning.

[0125] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0126] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A coating blade automatic cleaning method, characterized in that: include: In response to an instruction to automatically clean the coating blade head, a first liquid is transferred from the first interface of the coating blade head to the coating blade head storage chamber through the first pipe; the first liquid is a cleaning liquid for cleaning the coating blade head; the first interface is an inlet of the coating blade head; The second liquid in the storage chamber is extracted from the second interface of the coating head through the second pipe; the second liquid is a mixed liquid of the cleaning liquid and the coating glue in the storage chamber of the coating head; the second interface is located on the side away from the discharge port of the coating head storage chamber, and is located on the same side as the feed port of the coating head storage chamber.

2. The method according to claim 1, characterized in that When the second liquid in the storage chamber is extracted from the second interface of the coating knife head through the second pipe, the method further includes: determining a liquid surface height of a second liquid in the second conduit; If the liquid surface height of the second liquid is lower than the first preset liquid surface height, the extraction speed of the second liquid by the second pipe is adjusted; wherein the extraction speed of the second liquid in the second pipe is lower than the transmission speed of the first liquid in the first pipe.

3. The method according to claim 2, characterized in that Adjusting the extraction speed of the second liquid by the second pipeline includes: Turn on the first liquid driving module; the first liquid driving module is installed inside the second pipe, and the first liquid driving module increases the flow speed of the second liquid in the second pipe by pushing the second liquid.

4. The method according to claim 2, characterized in that Adjusting the extraction speed of the second liquid by the second pipeline includes: The air pressure in the second pipe is reduced until the liquid surface height in the second pipe is greater than the first preset liquid surface height.

5. The method according to claim 1, wherein After adjusting the extraction speed of the second liquid by the second pipeline, the method further includes: If the liquid surface height in the second pipe is lower than the first preset liquid surface height for a preset time, the transmission of the first liquid is stopped and a warning is issued.

6. The method according to claim 1, characterized in that After responding to the instruction to automatically clean the coating knife head, the method further includes: Determine the type of coating glue in the coating cutter head storage cavity; Determine the type of cleaning fluid according to the type of coating glue; The second valve is determined based on the type of cleaning liquid and each first valve; the first valve is used to start or stop the transmission of cleaning liquid to the first pipeline; the cleaning liquid type corresponding to each first valve is different; the second valve is used to start or stop the transmission of the first liquid to the first pipeline; the cleaning efficiency of the first liquid on the coating glue in the coating cutter head storage chamber is greater than the cleaning efficiency of the cleaning liquid corresponding to each first valve on the coating glue in the coating cutter head storage chamber; Accordingly, the first liquid is transferred from the first interface of the coating blade head to the storage chamber through the first pipeline, including: Opening the second valve and transmitting the first liquid to the first interface through the first pipeline; The flow rate of the first liquid in the first pipe is adjusted until the flow rate of the first liquid in the first pipe is greater than a first preset flow rate.

7. The method according to claim 6, characterized in that Adjusting the flow rate of the first liquid in the first pipe includes: If the flow rate of the first liquid in the first pipeline is less than the first preset flow rate, the opening of the second valve is increased and / or the second liquid driving module is turned on; the second liquid driving module is installed inside the first pipeline, and the second liquid driving module increases the flow rate of the first liquid in the first pipeline by pushing the first liquid.

8. The method according to claim 6, characterized in that Adjusting the flow rate of the first liquid in the first pipe to be greater than a first preset flow rate includes: If the flow rate of the first liquid in the first pipeline is less than the first preset flow rate, the opening of the second valve is increased and / or the first dynamic pressure is increased; the first dynamic pressure is the force applied to a unit volume of the first liquid when the first liquid is provided to the first pipeline.

9. The method according to claim 6, characterized in that After adjusting the flow rate of the first liquid in the first pipe, the method further includes: If the flow rate of the first liquid in the first pipe is less than the first preset flow rate for a preset time, the transmission of the first liquid is stopped and a warning is issued.

10. The method according to claim 1, characterized in that After responding to the instruction to automatically clean the coating knife head, the method further includes: The coating blade is moved to a first position; when the coating blade is at the first position, the liquid discharged from the discharge port falls into a liquid tank; the liquid tank is used to receive the second liquid flowing out of the coating blade discharge port.

11. An automatic cleaning device for a coating blade, characterized in that: include: A first liquid input module is configured to transmit a first liquid from a first interface of the coating blade head to a material storage chamber of the coating blade head through a first pipe in response to an instruction to automatically clean the coating blade head; the first liquid is a cleaning liquid for cleaning the coating blade head; and the first interface is an inlet of the coating blade head; The second liquid extraction module is used to extract the second liquid in the storage chamber from the second interface of the coating head through the second pipe; the second liquid is a mixture of cleaning liquid and coating glue in the coating head storage chamber; the second interface is located on the side away from the discharge port in the coating head storage chamber, and is located on the same side as the inlet port of the coating head storage chamber.

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