Paint supply equipment and control method and device thereof

Abstract

The embodiment of the present application discloses a coating supply device and a control method and device thereof. The coating supply device includes a discharge pipeline, a discharge component and a control component for coating a coating object; one end of the discharge pipeline is connected to a feed component containing coating, and the other end of the discharge pipeline is connected to an input end of the discharge component, and a flow control valve group and a flow sensor are arranged on the discharge pipeline; the control component is connected to the flow control valve group and the flow sensor, and is used to respond to an alarm signal indicating an abnormal coating flow detected by the flow sensor when the discharge component is turned on, and obtain a target opening range of the flow control valve group according to a target flow range determined according to a coating thickness requirement range of the coating object, so as to adjust the valve opening of the flow control valve group according to the target opening range. The coating supply device provided by the embodiment of the present application can reduce the impact of abnormal flow sensor detection on the coating effect and improve the reliability of the coating supply device.

Description

Technical Field

[0001] The present application relates to the technical field of paint supply, and in particular to a paint supply device and a control method and device thereof. Background Art

[0002] Paint supply equipment refers to equipment that applies paint to objects, such as equipment that sprays paint on objects. In order to make the paint provided by the equipment meet the coating requirements of the object, in the relevant technology, a flow sensor can be set in the discharge path of the supply equipment to detect the paint flow output by the supply equipment, so as to adjust the paint flow output by the supply equipment according to the detected paint flow, so that the paint flow detected by the flow sensor meets the current coating requirements of the object.

[0003] However, if the flow sensor has an abnormality, such as data distortion, drift or other disturbances, this adjustment method will cause the detected paint flow to be abnormal, resulting in errors in the paint flow adjustment of the supply equipment, thereby affecting the coating effect. Summary of the invention

[0004] In view of the above problems, the present application provides a paint supply device and a control method and device thereof, which can reduce the impact of abnormal flow sensor detection on the coating effect and improve the reliability of the paint supply device.

[0005] In the first aspect, an embodiment of the present application provides a paint supply device, including a discharge pipeline, a discharge component for coating a coating object, and a control component; one end of the discharge pipeline is connected to a feed component containing the coating, and the other end of the discharge pipeline is connected to an input end of the discharge component, and a flow control valve group and a flow sensor are provided on the discharge pipeline; the control component is connected to the flow control valve group and the flow sensor, and is used for, when the discharge component is turned on, responding to an alarm signal indicating an abnormal paint flow detected by the flow sensor, and determining a target flow range according to a coating thickness requirement range of the coating object, to obtain a target opening range of the flow control valve group, so as to adjust the valve opening of the flow control valve group according to the target opening range.

[0006] In the technical solution of the embodiment of the present application, when the paint flow detected by the flow sensor is abnormal, the abnormality may be caused by damage to the flow sensor. Therefore, in the case of abnormal paint flow detected by the flow sensor, the target flow range is determined by the coating thickness requirement range of the coating object to obtain the target opening range of the flow control valve group, so as to adjust the valve opening of the flow control valve group according to the target opening range, so that the supplied paint can meet the coating thickness requirement of the coating object, and there is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, thereby avoiding the situation where the coating thickness of the coating object is abnormal due to the use of abnormal flow signal to adjust the paint flow, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0007] In some embodiments, the paint supply device further includes a return line; one end of the return line is connected to one end of the discharge assembly, and the other end of the return line is connected to the supply assembly. Thus, excess paint can flow back to the supply assembly through the return line, reducing the possibility of pipeline blockage caused by paint settling in the pipeline of the paint supply device, reducing the frequency of pipeline maintenance of the paint supply device, and thus improving the reliability of the paint supply device.

[0008] In some embodiments, a flow valve group is provided on the reflux pipeline; the control component is specifically used to obtain the target opening range of the flow control valve group according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group in response to the alarm signal indicating abnormal paint flow detected by the flow sensor when the discharge component is turned on. Thereby, the coating thickness formed by the paint flow output by the discharge component is likely to be within the coating thickness requirement range of the coating object, and the situation that the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the reflux of the reflux pipeline when the flow sensor is abnormal is reduced, thereby further improving the reliability of the paint supply equipment.

[0009] In some embodiments, a flow sensor unit for detecting the flow of paint in the return pipeline is provided in the return pipeline, and the control component is connected to the flow sensor unit; the control component is specifically used to obtain the target opening range of the flow control valve group according to the target flow range and the return flow peak value determined by the valve opening of the flow valve group in response to the alarm signal indicating the abnormal flow of paint detected by the flow sensor and the alarm signal indicating the abnormal flow of paint detected by the flow sensor unit when the discharge component is turned on. Therefore, when the flow sensor of the discharge pipeline and the flow sensor unit of the return pipeline are abnormal, the target opening range of the flow control valve group is obtained according to the target flow range and the return flow peak value determined by the valve opening of the flow valve group to adjust the valve opening of the flow control valve group, thereby reducing the situation in which the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the reflux of the return pipeline when both the flow sensor and the flow sensor unit are abnormal, thereby further improving the reliability of the paint supply equipment.

[0010] In some embodiments, the control component is also used to: when the discharge component is turned on, in response to an alarm signal indicating that the paint flow detected by the flow sensor is abnormal, and a detection signal indicating that the paint flow detected by the flow sensing unit is normal, obtain a target opening range of the flow control valve group according to the target flow range and the paint flow detected by the flow sensing unit, so that the coating thickness formed by the paint flow output by the discharge component can be within the coating thickness requirement range of the coating object, thereby reducing the situation where the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the backflow of the reflux pipeline when an abnormality occurs in the flow sensor, thereby further improving the reliability of the paint supply equipment.

[0011] In some embodiments, the control component is also used to: when the discharge component is turned on, in response to the detection signal indicating that the paint flow detected by the flow sensor is normal, and the alarm signal indicating that the paint flow detected by the flow sensor unit is abnormal, adjust the valve opening of the flow control valve group according to the paint flow detected by the flow sensor and the reflux flow peak value determined by the valve opening of the flow valve group. Therefore, even if the flow sensor unit detects an abnormality, the paint flow output by the discharge component can most likely meet the current coating requirements of the coating object, reduce the impact of the abnormality of the flow sensor unit on the coating effect, and improve the reliability of the paint supply equipment.

[0012] In some embodiments, the control component is also used to: when the discharge component is closed, control the discharge pipeline and the return pipeline to be connected, so that the paint of the supply component can be self-circulated through the discharge pipeline and the return pipeline, thereby reducing the solidification or precipitation of the paint in the supply component due to the closure of the discharge component, facilitating the coating of the coating object when the discharge component is opened later, and reducing the possibility of pipeline blockage due to paint precipitation, thereby reducing the frequency of pipeline maintenance. The reliability of the paint supply equipment is further improved.

[0013] In some embodiments, the control component is specifically used to control the conductance of the discharge pipeline and the return pipeline according to the amount of sediment attached in the discharge pipeline or the return pipeline when the discharge component is closed, so as to better flush the sediment attached in the pipeline, thereby further reducing the possibility of pipeline blockage caused by paint sedimentation and improving the reliability of the paint supply equipment.

[0014] In some embodiments, the connecting pipe of the discharge pipe is provided with a first heating element, so as to utilize the first heating element to heat the paint flowing through the discharge pipe, thereby increasing the movement rate of the paint molecules, thereby increasing the fluidity of the paint in the connecting pipe of the discharge pipe, thereby reducing the possibility of the paint forming sediment in the discharge pipe due to low temperature, thereby reducing the possibility of pipe blockage in the discharge pipe.

[0015] In some embodiments, the connecting pipe of the return pipe is provided with a second heating element, so as to utilize the second heating element to heat the paint flowing through the return pipe, thereby increasing the movement rate of the paint molecules and improving the fluidity of the paint in the pipe, thereby reducing the possibility of the paint forming sediment in the return pipe due to low temperature, thereby reducing the possibility of pipe blockage in the return pipe.

[0016] In some embodiments, the paint supply device further includes a stirring component connected to the control component; the stirring component is used to stir the paint in the supply component; the control component is also used to adjust the stirring speed of the stirring component according to the amount of paint in the supply component; wherein the amount of paint is positively correlated with the stirring speed. In this way, the fluidity of the paint in the supply component can be improved, the possibility of the paint condensing in the supply component can be reduced, and the reliability of the paint supply device can be improved.

[0017] In some embodiments, the paint supply device also includes a heating component connected to the control component; the heating component is used to heat the paint in the supply component; the control component is also used to adjust the heating power of the heating component according to the target temperature of the paint in the supply component so that the current temperature of the paint in the supply component is at the target temperature.

[0018] In a second aspect, the present application provides a control method for a paint supply device, which is applied to the paint supply device in any of the above-mentioned embodiments, and the method comprises: when the discharge component is opened, in response to an alarm signal indicating an abnormal paint flow rate detected by the flow sensor, a target flow rate range is determined according to a coating thickness requirement range of the coating object, and a target opening range of the flow control valve group is obtained, so as to adjust the valve opening of the flow control valve group according to the target opening range.

[0019] In the technical solution of the embodiment of the present application, when the flow sensor detects an abnormal paint flow, the target flow range is determined according to the coating thickness requirement range of the coating object, and the target opening range of the flow control valve group is obtained. The valve opening of the flow control valve group is adjusted according to the target opening range, so that the supplied paint can meet the coating thickness requirement of the coating object. There is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, thereby avoiding the situation where the coating thickness of the coating object is abnormal due to the use of abnormal flow signal to adjust the paint flow, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0020] In a third aspect, the present application provides a control device for a paint supply equipment, which is applied to the paint supply equipment described in any of the above embodiments, and the device includes: an equipment control module, which is used to respond to an alarm signal indicating an abnormal paint flow detected by the flow sensor when the discharge component is turned on, and obtain a target opening range of the flow control valve group based on a target flow range determined according to a coating thickness requirement range of the coating object, so as to adjust the valve opening of the flow control valve group according to the target opening range.

[0021] In the technical solution of the embodiment of the present application, when the flow sensor detects an abnormal paint flow, the target flow range is determined according to the coating thickness requirement range of the coating object, and the target opening range of the flow control valve group is obtained. The valve opening of the flow control valve group is adjusted according to the target opening range, so that the supplied paint can meet the coating thickness requirement of the coating object. There is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, thereby avoiding the situation where the coating thickness of the coating object is abnormal due to the use of abnormal flow signal to adjust the paint flow, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0022] In a fourth aspect, the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the method in the implementation of the second aspect when executing the computer program.

[0023] In a fifth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method in the implementation of the second aspect.

[0024] In a sixth aspect, the present application provides a computer program product, which, when executed on a computer, enables the computer to execute the method in the implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0026] Figure 1 A first structural diagram of a coating supply device according to some embodiments of the present application;

[0027] Figure 2 A second structural diagram of a coating supply device according to some embodiments of the present application;

[0028] Figure 3 A third structural diagram of a coating supply device according to some embodiments of the present application;

[0029] Figure 4 A fourth structural diagram of a coating supply device according to some embodiments of the present application;

[0030] Figure 5 A fifth structural diagram of a coating supply device according to some embodiments of the present application;

[0031] Figure 6 A sixth structural diagram of a coating material supply device according to some embodiments of the present application;

[0032] Figure 7 A flowchart of a control method of a coating supply device according to some embodiments of the present application;

[0033] Figure 8 A schematic diagram of the structure of a control device of a paint supply device according to some embodiments of the present application;

[0034] Fig. 9 This is a schematic diagram of the structure of an electronic device according to some embodiments of the present application.

[0035] Some of the reference numerals in the specific implementation manner are as follows:

[0036] 10-discharge pipeline; 20-discharge assembly; 30-feed assembly; 40-return pipeline; 100-flow control valve group; 101-flow sensor; 102-flow valve group; 103-flow sensing unit; 104-first heating element; 105-second heating element; 106-stirring assembly; 107-heating assembly; 1101-flow control valve; 1102-water pump; 1103-filter; 1104-pressure reducing valve; 1105-motor; 1106-stirring machine; 201-equipment control module; 300-electronic equipment; 301-processor; 302-memory; 303-communication bus. DETAILED DESCRIPTION

[0037] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0039] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] Paint supply equipment refers to equipment that applies paint to objects, such as equipment that sprays paint on objects. In order to ensure that the paint provided by the equipment meets the coating requirements of the object, in the relevant technology, a flow sensor can be set in the discharge path of the supply equipment to detect the paint flow output by the supply equipment, so that the paint flow output by the supply equipment can be automatically adjusted according to the detected paint flow, so that the paint flow detected by the flow sensor meets the current coating requirements of the object.

[0045] However, if the flow sensor has abnormalities such as data distortion, drift or other disturbances, the detected paint flow will increase or decrease suddenly or exceed the normal flow range, causing errors in the paint flow adjustment of the supply equipment, thus affecting the coating effect.

[0046] In response to the above-mentioned technical problems, an embodiment of the present application provides a paint supply device, which includes a discharge pipeline, a discharge component and a control component for coating a coating object; one end of the discharge pipeline is connected to a feed component containing the coating, and the other end of the discharge pipeline is connected to an input end of the discharge component, and a flow control valve group and a flow sensor are provided on the discharge pipeline; the control component is connected to the flow control valve group and the flow sensor, and is used for adjusting the valve opening of the flow control valve group according to a target flow range determined according to a coating thickness requirement range of the coating object, in response to an alarm signal indicating an abnormal paint flow detected by the flow sensor when the discharge component is turned on. Because when the paint flow detected by the flow sensor is abnormal, the abnormality may be caused by damage to the flow sensor. Therefore, when the paint flow detected by the flow sensor is abnormal, the target flow range is determined by the coating thickness requirement range of the coating object to obtain the target opening range of the flow control valve group, so as to adjust the valve opening of the flow control valve group according to the target opening range, so that the supplied paint can meet the coating thickness requirement of the coating object, and there is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, so as to avoid the situation where the coating thickness of the coating object is abnormal due to adjusting the paint flow using the abnormal flow signal, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0047] According to some embodiments of the present application, a coating supply device is provided, such as Figure 1 As shown, the paint supply equipment includes a discharge pipeline 10, a discharge component 20 for coating a coating object, and a control component (not shown); one end of the discharge pipeline 10 is connected to a supply component 30 containing the coating, and the other end of the discharge pipeline 10 is connected to an input end of the discharge component 20, and a flow control valve group 100 and a flow sensor 101 are provided on the discharge pipeline 10; the control component is connected to the flow control valve group 100 and the flow sensor 101, and is used for, when the discharge component 20 is opened, responding to an alarm signal indicating an abnormal coating flow detected by the flow sensor 101, and obtaining a target opening range of the flow control valve group 100 according to a target flow range determined according to a coating thickness requirement range of the coating object, so as to adjust the valve opening of the flow control valve group 100 according to the target opening range.

[0048] In some embodiments, the discharge pipe 10 may include a connecting pipe provided between the supply assembly 30 and the discharge assembly 20, and one end of the discharge pipe 10 may be connected to the cavity of the supply assembly 30 containing the paint, and contact the paint in the cavity, so as to transport the paint in the supply assembly 30 to the discharge assembly 20, so that the discharge assembly 20 can apply the paint to the coating object. The supply assembly 30 may include a box containing the paint, such as a paint bucket containing the paint.

[0049] In some embodiments, one end of the flow control valve group 100 is connected to the cavity of the feed assembly 30 containing the paint through the connecting pipe of the discharge pipeline 10, and the other end of the flow control valve group 100 is connected to the input end of the discharge assembly 20 through the connecting pipe of the discharge pipeline 10. Exemplarily, the flow control valve group 100 may include a flow control valve, which may be an electric valve controlled by a signal, such as a hydraulic solenoid valve or a pneumatic solenoid valve. One end of the flow control valve is connected to the cavity of the feed assembly 30 containing the paint through the connecting pipe of the discharge pipeline 10, and the other end of the flow control valve is connected to the input end of the discharge assembly 20 through the connecting pipe of the discharge pipeline 10.

[0050] To improve the coating delivery efficiency, in some embodiments, Figure 2 As shown, the flow control valve group 100 includes a flow control valve 1101, a water pump 1102, a filter 1103 and a pressure reducing valve 1104, and the flow control valve 1101, the water pump 1102, the filter 1103 and the pressure reducing valve 1104 are connected through a connecting pipe of a discharge pipeline 10. Among them, the water pump 1102 can be one of a diaphragm pump, a self-priming pump or a centrifugal pump.

[0051] Exemplarily, the input end of the water pump 1102 is connected to the cavity of the supply assembly 30 containing the paint through a connecting pipe, the output end of the water pump 1102 is connected to one end of the filter 1103 through a connecting pipe, the other end of the filter 1103 is connected to one end of the pressure reducing valve 1104 through a connecting pipe, the other end of the pressure reducing valve 1104 is connected to one end of the flow control valve 1101 through a connecting pipe, and the other end of the flow control valve is connected to the input end of the discharge assembly 20 through a connecting pipe. When the coating object needs to be coated, the paint in the supply assembly 30 can be pressurized by the water pump 1102, and enter the discharge assembly 20 after passing through the filter 1103, the pressure reducing valve 1104 and the flow control valve 1101 in sequence through the connecting pipe of the discharge pipeline 10, and the coating object is coated by the discharge assembly 20.

[0052] In addition to the above-mentioned connection method, other connection sequences can also be used to connect the flow control valve 1101, the water pump 1102, the filter 1103 and the pressure reducing valve 1104. For example, the output end of the water pump 1102 is connected to one end of the pressure reducing valve 1104 through a connecting pipe, the other end of the pressure reducing valve 1104 is connected to one end of the filter 1103 through a connecting pipe, the other end of the filter 1103 is connected to one end of the flow control valve 1101 through a connecting pipe, and the other end of the flow control valve is connected to the input end of the discharge component 20 through a connecting pipe, etc.

[0053] In some embodiments, the flow sensor 101 can be arranged at any position on the discharge pipeline to detect the flow rate of the coating material output by the discharge pipeline 10. Exemplarily, the flow sensor 101 can be arranged on the connecting pipe between the flow control valve group 100 and the discharge assembly 20, such as the connecting pipe between the flow control valve and the discharge assembly 20. Alternatively, the flow sensor 101 can be arranged on the connecting pipe between the flow control valve group 100 and the feeding assembly 30, such as the connecting pipe between the flow control valve and the feeding assembly 30. The range of the flow sensor 101 can be determined according to the maximum flow rate of coating material that can be transported by the discharge pipeline 10. Exemplarily, a flow sensor 101 with a range not less than the maximum flow rate of coating material that can be transported by the discharge pipeline 10 can be selected to detect the flow rate of coating material output by the discharge pipeline 10.

[0054] In some embodiments, the discharge assembly 20 may include a spraying device, such as a spray gun, etc., for spraying paint on a coating object, such as a battery cell to be sprayed.

[0055] In some embodiments, the control component may include a control device with a control function, such as a PI (proportional integral) controller or other terminal device, and the terminal device may be any terminal device such as a mobile terminal, a desktop terminal or a server. The server may be an independent server or a server cluster composed of multiple servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence sampling point devices.

[0056] The control component is connected to the flow control valve group 100 and the flow sensor 101, and is used to control the flow control valve group 100 and receive the flow signal detected by the flow sensor 101. Exemplarily, the control component can be connected to the flow control valve 1101 in the flow control valve group 100, and can also be connected to the water pump 1102 and the pressure reducing valve 1104 in the flow control valve group 100.

[0057] In some embodiments, when the coating object needs to be coated, the flow control valve group 100 and the discharge assembly 20 can be opened, so that the coating in the supply assembly 30 is transported to the discharge assembly 20 through the discharge pipeline 10, and the coating object is coated by the discharge assembly 20. Exemplarily, the control assembly can also be connected to the discharge assembly 20, and when the coating object needs to be coated, the flow control valve group 100 and the discharge assembly 20 can be controlled by the control assembly to open.

[0058] When the discharge component 20 is turned on, the control component can obtain the paint flow detected by the flow sensor 101. If the paint flow is normal, such as no sudden change in flow or it is within a set preset flow range, the valve opening of the flow control valve group 100 is adjusted according to the paint flow detected by the flow sensor 101, so that the paint flow output by the discharge component 20 meets the current coating requirements of the coating object, thereby improving the coating quality of the coating object.

[0059] When the discharge component 20 is turned on, if the paint flow detected by the flow sensor 101 is abnormal, such as a sudden change in the paint flow, the paint flow suddenly returns to zero, the paint flow suddenly reaches the peak value of the range of the flow sensor 101, the paint flow continuously fluctuates, or the paint flow is outside the preset flow range, it means that the paint flow may be caused by abnormal disturbances such as distortion, drift, damage of the flow sensor 101 data, or a large number of bubbles appearing in the discharge pipeline in an instant. At this time, it can be determined that the flow sensor 101 detects abnormality, and an alarm signal is generated to indicate that the paint flow detected by the flow sensor is abnormal. signal, and respond to the alarm signal, after determining the target flow range according to the coating thickness requirement range of the coating object, according to the target flow range, from a mapping table that records the correspondence between the flow range and the valve opening range of the flow control valve group 100, determine the valve opening range corresponding to the target flow range as the target opening range, so as to adjust the valve opening of the flow control valve group according to the target opening range, so that the valve opening of the flow control valve group is within the target opening range, so that the coating thickness formed by the coating flow output by the discharge component 20 is within the coating thickness requirement range of the coating object.

[0060] The coating thickness requirement range may be composed of an upper limit and a lower limit of the coating thickness requirement of the coating object. Exemplarily, the control component may pre-record an upper limit and a lower limit of the coating film thickness of the coating object, the upper limit of the coating film thickness being the upper limit of the coating thickness requirement, and the lower limit of the coating film thickness being the lower limit of the coating thickness requirement. The coating film thickness range composed of the upper limit and the lower limit of the coating film thickness is the coating thickness requirement range of the coating object.

[0061] After determining the coating thickness requirement range of the coating object, the target flow range output by the discharge assembly 20 can be determined according to the coating thickness requirement range, and the target opening range corresponding to the target flow range can be obtained according to the target flow range, so as to adjust the valve opening of the flow control valve group according to the target opening range, so that the coating thickness formed by the coating flow output by the discharge assembly 20 is within the coating thickness requirement range of the coating object. In this way, even if the flow sensor 101 detects an abnormality, the coating quality of the coating object can be qualified during the period when the flow sensor 101 detects an abnormality.

[0062] In addition, an alarm prompt may be given based on the alarm signal, such as displaying the alarm signal on a display screen of the control component, or sending the alarm signal to a user terminal of a maintenance personnel, to remind the maintenance personnel to inspect the paint supply equipment.

[0063] In some embodiments, the control component can also continuously obtain the coating flow detected by the flow sensor 101 during the process of adjusting the valve opening of the flow control valve group according to the target flow range determined according to the coating thickness requirement range of the coating object. If the coating flow detected by the flow sensor 101 returns to normal, the control mode of the flow control valve group 100 is switched to adjusting the valve opening of the flow control valve group 100 according to the coating flow detected by the flow sensor 101, so as to improve the coating quality of the coating object.

[0064] A paint supply device is provided, which includes a discharge pipeline, a discharge component for coating a coating object, and a control component; one end of the discharge pipeline is connected to a feed component containing the coating, and the other end of the discharge pipeline is connected to an input end of the discharge component, and a flow control valve group and a flow sensor are arranged on the discharge pipeline; the control component is connected to the flow control valve group and the flow sensor, and is used for, when the discharge component is turned on, responding to an alarm signal indicating an abnormal coating flow detected by the flow sensor, and determining a target flow range according to a coating thickness requirement range of the coating object, to obtain a target opening range of the flow control valve group, so as to adjust the valve opening of the flow control valve group according to the target opening range. When the paint flow detected by the flow sensor is abnormal, the abnormality may be caused by damage to the flow sensor. Therefore, when the paint flow detected by the flow sensor is abnormal, the valve opening of the flow control valve group is adjusted according to the target flow range determined by the coating thickness requirement range of the coating object, so that the supplied paint can meet the coating thickness requirement of the coating object, and there is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor. This avoids the situation where the coating thickness of the coating object is abnormal due to adjusting the paint flow using the abnormal flow signal, thereby reducing the impact of the flow sensor detection abnormality on the coating effect and improving the reliability of the paint supply equipment.

[0065] To further improve the reliability of the coating supply device, in some embodiments, such as Figure 3 As shown, the paint supply device further includes a return line 40 ; one end of the return line 40 is connected to one end of the discharge assembly 20 , and the other end of the return line 40 is connected to the supply assembly 30 .

[0066] In some embodiments, the reflux pipeline 40 may include a connecting pipe arranged between the supply component 30 and the discharge component 20, one end of the reflux pipeline 40 is connected to one end of the discharge component 20, such as the input end or the output end of the discharge component 20, and the other end of the reflux pipeline 40 can be connected to the cavity of the supply component 30 containing the paint to achieve the reflux of the paint.

[0067] Exemplarily, one end of the reflux pipeline 40 is connected to the input end of the discharge assembly 20. When the flow control valve group 100 is opened, the paint of the supply assembly 30 flows through the discharge pipeline 10, and at least part of the paint can flow into the reflux pipeline 40 through the discharge pipeline 10, so as to flow back to the supply assembly 30 through the reflux pipeline 40. If the flow control valve group 100 and the discharge assembly 20 are opened, part of the paint of the supply assembly 30 flows into the discharge assembly 20 through the discharge pipeline 10 to coat the coating object, and the other part of the paint flows into the reflux pipeline 40 through the discharge pipeline 10, so as to flow back to the supply assembly 30 through the reflux pipeline 40, so that the excess paint can flow back to the supply assembly through the reflux pipeline, thereby reducing the possibility of pipeline blockage caused by the precipitation of paint in the pipeline of the paint supply equipment, reducing the pipeline maintenance frequency of the paint supply equipment, and thus improving the reliability of the paint supply equipment.

[0068] In some embodiments, since a return line 40 is provided, the actual coating flow rate output by the feed assembly 30 is equal to the difference between the coating flow rate output by the discharge line 10 and the coating return flow rate of the return line 40. Therefore, the valve opening of the flow control valve group 100 can be adjusted according to the actual required flow rate of the coating object and the sum of the coating return flow rates of the return line 40, until the coating flow rate detected by the flow sensor 101 is equal to the sum of the actual required flow rate of the coating object and the coating return flow rate. Among them, the coating return flow rate of the return line 40 can be determined according to the cross-sectional area of ​​the connecting pipe of the return line 40, such as the peak value of the coating flow rate that can flow through the return line 40 can be determined according to the cross-sectional area of ​​the connecting pipe of the return line 40, so as to use the peak value as the coating return flow rate. Alternatively, a flow sensor unit can be provided in the return line 40 to detect the coating return flow rate of the return line 40.

[0069] To further improve the coating supply device, in some embodiments, such as Figure 4 As shown, a flow valve group 102 is provided on the return line 40;

[0070] The control component is specifically used to determine the target opening range of the flow control valve group 100 according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group 102, in response to the alarm signal indicating abnormal paint flow detected by the flow sensor when the discharge component 20 is turned on.

[0071] In some embodiments, the flow valve group 102 may include at least one flow valve, which may be an electric valve controlled by a signal, such as a hydraulic solenoid valve or a pneumatic solenoid valve. One end of the flow valve group 102 is connected to the input end of the discharge assembly 20 through the connecting pipe of the return line 40, and the other end of the flow valve group 102 is connected to the cavity of the supply assembly 30 through the connecting pipe of the return line 40. The flow valve group 102 is connected to the control assembly. In order to facilitate the detection of the flow of the refluxed paint, the valve opening of the flow valve group 102 when it is opened can be a fixed opening.

[0072] When the coating object needs to be coated, the control component can control the flow control valve group 100, the discharge component 20 and the flow valve group 102 to open. At this time, part of the coating of the supply component 30 flows into the discharge component 20 through the discharge pipeline 10 to coat the coating object, and the other part of the coating flows into the return pipeline 40 through the discharge pipeline 10 to flow back to the supply component 30 through the return pipeline 40. At the same time, the control component can determine the peak value of the return flow through the return pipeline 40 according to the opening of the flow valve group 102. If the coating flow detected by the flow sensor 101 of the control component is normal, the valve opening of the flow control valve in the flow control valve group 100 can be adjusted according to the coating flow detected by the flow sensor 101 and the peak value of the return flow, so that the actual coating flow output by the discharge component 20 can meet the coating requirements of the coating object.

[0073] If the paint flow detected by the flow sensor 101 is abnormal, an alarm signal indicating that the paint flow detected by the flow sensor is abnormal can be generated, and in response to the alarm signal, the output flow range of the discharge pipeline 10 is determined according to the target flow range determined by the coating thickness requirement range of the coating object and the peak value of the reflux flow determined by the opening of the flow valve group 102. Based on the output flow range, the valve opening range corresponding to the output flow range is determined from a mapping table that records the correspondence between the flow range and the valve opening range of the flow control valve group 100 as the target opening range of the flow control valve group 100, and the valve opening of the flow control valve group 100 is adjusted according to the target opening range so that the coating thickness formed by the paint flow output by the discharge component 20 is within the coating thickness requirement range of the coating object. If the target flow range is [A, B] and the peak value of the reflux flow is c, the output flow range of the discharge pipeline 10 can be determined to be [A+c, B+c]. After determining the target opening range of the flow control valve group 100 according to the output flow range [A+c, B+c], the valve opening of the flow control valve group 100 is adjusted according to the target opening range, so that the coating flow output by the discharge pipeline 10 is within the output flow range [A+c, B+c]. Since the peak value of the reflux flow of the reflux pipeline 40 is c, the coating flow flowing into the reflux pipeline 40 will be close to the peak value c, so that the coating flow actually output by the discharge component 20 will most likely fall within the target flow range [A, B], and then the coating thickness formed by the coating flow output by the discharge component 20 is within the coating thickness requirement range of the coating object, thereby improving the qualified rate of the coating quality.

[0074] By responding to the alarm signal of abnormal paint flow detected by the flow sensor when the discharge component is turned on, and determining the target opening range of the flow control valve group according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group, the coating thickness formed by the paint flow output by the discharge component is likely to be within the coating thickness requirement range of the coating object, thereby reducing the situation where the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the backflow of the reflux pipeline when the flow sensor is abnormal, thereby further improving the reliability of the paint supply equipment.

[0075] To further improve the reliability of the coating supply device, in some embodiments, Figure 4 As shown, a flow sensor unit 103 for detecting the flow of paint in the return line 40 is provided in the return line 40, and the control component is connected to the flow sensor unit 103;

[0076] The control component is specifically used to, when the discharge component 20 is turned on, respond to the alarm signal indicating abnormal paint flow detected by the flow sensor 101 and the alarm signal indicating abnormal paint flow detected by the flow sensing unit 103, and determine the target opening range of the flow control valve group 100 according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group 102.

[0077] In some embodiments, the flow sensing unit 103 may include at least one flow sensing device, and the flow sensing unit 103 may be disposed at any position on the return line 40. For example, the flow sensing unit 103 may be disposed on the connecting pipe between the flow valve group 102 and the discharge assembly 20. Alternatively, the flow sensing unit 103 may be disposed on the connecting pipe between the flow valve group 102 and the supply assembly 30.

[0078] In some embodiments, when it is necessary to apply paint to the coating object, the control component can control the flow control valve group 100, the flow valve group 102 and the discharge component 20 to open, and detect the coating flow of the discharge pipeline 10 through the flow sensor 101, and detect the coating flow of the return pipeline 40 through the flow sensing unit 103. If the coating flow detected by the flow sensor 101 and the coating flow detected by the flow sensing unit 103 are normal, the valve opening of the flow control valve group 100 is adjusted according to the coating flow detected by the flow sensor 101 and the coating flow detected by the flow sensing unit 103, so that the coating flow output by the discharge component 20 meets the current coating requirements of the coating object, thereby improving the coating quality of the coating object.

[0079] If the paint flow rate detected by the flow sensor 101 is abnormal, then it can be determined whether the paint flow rate detected by the flow sensor unit 103 is abnormal. The method of determining whether the paint flow rate detected by the flow sensor unit 103 is abnormal is that if the paint flow rate detected by the flow sensor unit 103 is also abnormal, such as a sudden change in the paint flow rate, the paint flow rate suddenly returns to zero, the paint flow rate suddenly reaches the peak value of the range of the flow sensor unit 103, the paint flow rate fluctuates continuously, or the paint flow rate is outside a preset flow range, then it is determined that the paint flow rate detected by the flow sensor unit 103 is abnormal. If the paint flow detected by the flow sensing unit 103 is also abnormal, an alarm signal indicating that the paint flow detected by the flow sensor 101 is abnormal and an alarm signal indicating that the paint flow detected by the flow sensing unit 103 is abnormal are generated. In response to these two alarm signals, the output flow range of the discharge pipeline 10 is determined according to the target flow range determined by the coating thickness requirement range of the coating object and the peak value of the reflux flow determined by the opening of the flow valve group 102. The target opening range of the flow control valve group 100 is determined according to the output flow range, and the valve opening of the flow control valve group 100 is adjusted according to the target opening range, so that the coating thickness formed by the paint flow output by the discharge component 20 is within the coating thickness requirement range of the coating object. Therefore, when both the flow sensor of the discharge pipeline and the flow sensing unit of the return pipeline detect abnormalities, the valve opening of the flow control valve group is adjusted according to the target flow range and the return flow peak value determined by the valve opening of the flow valve group, thereby reducing the situation where the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the backflow of the reflux pipeline when both the flow sensor and the flow sensing unit detect abnormalities, thereby further improving the reliability of the paint supply equipment.

[0080] In some embodiments, the control component is also used to: respond to an alarm signal indicating that the paint flow detected by the flow sensor 101 is abnormal, and a detection signal indicating that the paint flow detected by the flow sensing unit 103 is normal, and determine the target opening range of the flow control valve group 100 according to the target flow range and the paint flow detected by the flow sensing unit 103.

[0081] In some embodiments, during the process of opening the discharge component 20 to coat the coating object, if the control component receives an abnormal coating flow uploaded by the flow sensor 101, but receives a normal coating flow uploaded by the flow sensing unit 103, it means that the abnormal coating flow is most likely caused by damage to the flow sensor 101 or other disturbances, and the coating flow uploaded by the flow sensor 101 is unreliable. At this time, an alarm signal indicating that the coating flow detected by the flow sensor 101 is abnormal can be generated, as well as a detection signal indicating that the coating flow detected by the flow sensing unit is normal. In response to the alarm signal and the detection signal, the coating flow uploaded by the flow sensing unit 103 is determined as the reflux flow of the reflux pipeline 40, and the output flow range of the discharge pipeline 10 is determined based on the reflux flow and the target flow range determined by the coating thickness requirement range of the coating object, so as to determine the target opening range of the flow control valve group 100 based on the output flow range, thereby adjusting the valve opening of the flow control valve group 100 according to the target opening range.

[0082] For example, assuming that the coating flow rate uploaded by the flow sensor unit 103 is c, the reflux flow rate of the reflux pipeline 40 can be determined to be c. At this time, the output flow rate range of the discharge pipeline 10 can be determined to be [A+c, B+c] according to the target flow rate range [A, B] determined by the coating thickness requirement range of the coating object, so as to determine the target opening range of the flow control valve group 100 according to the output flow rate range [A+c, B+c], and adjust the valve opening of the flow control valve group 100 according to the target opening range, so that the coating flow rate output by the discharge pipeline 10 is within the output flow rate range [A+c, B+c]. Since the reflux flow rate of the reflux pipeline 40 is c, the coating flow rate actually output by the discharge component 20 will fall within the target flow rate range [A, B], so that the coating thickness formed by the coating flow rate output by the discharge component 20 is within the coating thickness requirement range of the coating object, thereby improving the qualified rate of the coating quality.

[0083] By responding to the alarm signal indicating that the paint flow detected by the flow sensor is abnormal and the detection signal indicating that the paint flow detected by the flow sensing unit is normal when the discharge component is turned on, and determining the target opening range of the flow control valve group according to the target flow range and the paint flow detected by the flow sensing unit, the opening of the flow control valve group is adjusted, so that the coating thickness formed by the paint flow output by the discharge component can be within the coating thickness requirement range of the coating object, thereby reducing the situation where the paint flow output by the discharge component cannot meet the coating thickness requirement of the coating object due to the backflow of the reflux pipeline when the flow sensor is abnormal, thereby further improving the reliability of the paint supply equipment.

[0084] In order to reduce the influence of damage to the flow sensor unit on the coating effect, in some embodiments, the control component is further used to:

[0085] When the discharge component 20 is turned on, in response to the detection signal indicating that the paint flow detected by the flow sensor 101 is normal, and the alarm signal indicating that the paint flow detected by the flow sensing unit 103 is abnormal, the valve opening of the flow control valve group 100 is adjusted according to the paint flow detected by the flow sensor 101 and the reflux flow peak value determined by the valve opening of the flow valve group 102.

[0086] In some embodiments, during the process of opening the discharge component 20 to coat the coating object, if the control component receives normal paint flow uploaded by the flow sensor 101, but receives abnormal paint flow uploaded by the flow sensor unit 103, it means that the abnormal paint flow is most likely caused by damage to the flow sensor unit 103 or other disturbances, and the paint flow uploaded by the flow sensor unit 103 is unreliable. At this time, a detection signal indicating that the paint flow detected by the flow sensor 101 is normal can be generated, and a detection signal indicating that the paint flow detected by the flow sensor unit 103 is abnormal can be generated. In response to the alarm signal and the detection signal, the reflux flow peak value determined by the valve opening of the flow valve group 102 is used as the reflux flow of the reflux pipeline 40, and the valve opening of the flow control valve group 100 is adjusted according to the reflux flow and the paint flow detected by the flow sensor 101, so that the paint flow detected by the flow sensor 101 is equal to the sum of the reflux flow and the paint flow currently required by the discharge component 20. In this way, even if the flow sensor unit detects an abnormality, the paint flow output by the discharge component can meet the current coating requirements of the coating object with a high probability, reducing the impact of the abnormality of the flow sensor unit on the coating effect and improving the reliability of the paint supply equipment.

[0087] In order to further improve the reliability of the paint supply device, in some embodiments, the control component is also used to control the discharge pipeline 10 and the return pipeline 40 to be connected when the discharge component 20 is closed.

[0088] As a possible implementation, the coating supply device is as follows Figure 3 When the discharge assembly 20 is closed, such as when the control assembly controls the discharge assembly 20 to be closed, the control assembly can control the flow control valve group 100 in the discharge pipeline 10 to open, such as controlling the flow control valve 1101, the water pump 1102 and the pressure reducing valve to open, so as to control the discharge pipeline 10 and the return pipeline 40 to be connected, so that the paint of the feeding assembly 30 can be self-circulated through the discharge pipeline 10 and the return pipeline 40.

[0089] As another possible embodiment, the coating supply device is as follows: Figure 4 As shown, that is, the return pipeline 40 includes a flow valve group 102. When the discharge component 20 is closed, if the control component controls the discharge component 20 to be closed, the control component can control the flow control valve group 100 and the flow valve group 102 in the discharge pipeline 10 to open, so as to control the conduction of the discharge pipeline 10 and the return pipeline 40, so that the paint of the supply component 30 can be self-circulated through the discharge pipeline 10 and the return pipeline 40.

[0090] By controlling the discharge pipeline and the return pipeline to be connected when the discharge component is closed, the paint of the supply component can be self-circulated through the discharge pipeline and the return pipeline, thereby reducing the solidification or precipitation of the paint in the supply component due to the closure of the discharge component, facilitating the coating of the coating object when the discharge component is opened later, and reducing the possibility of pipeline blockage due to paint precipitation, reducing the frequency of pipeline maintenance, thereby further improving the reliability of the paint supply equipment.

[0091] To further reduce the possibility of pipeline blockage, in some embodiments, the control component is specifically used to: when the discharge component 20 is closed, control the conductance of the discharge pipeline 10 and the return pipeline 40 according to the amount of sediment adhesion in the discharge pipeline 10 or the return pipeline 40. The amount of sediment adhesion is positively correlated with the conductance of the discharge pipeline 10 and the return pipeline 40.

[0092] In some embodiments, the control component can obtain the amount of sediment attached in the discharge pipeline 10 or the return pipeline 40, and the sediment attached amount is used to represent the sediment content of the discharge pipeline 10 or the return pipeline 40, which can be uploaded to the control component by the user. Alternatively, the sediment attached amount can be determined according to the temperature of the coating flowing through the discharge pipeline 10 and / or the return pipeline 40, wherein the sediment attached amount is negatively correlated with the temperature of the coating flowing through the discharge pipeline 10 and / or the return pipeline 40, that is, the lower the temperature when the coating flows through the discharge pipeline 10 and / or the return pipeline 40, the more sediment content in the discharge pipeline 10 or the return pipeline 40. Exemplarily, a temperature sensor connected to the control component can be set in the discharge pipeline 10 and the return pipeline 40 to detect the temperature in the discharge pipeline 10 and the return pipeline 40, and through multiple tests, the sediment content range in the discharge pipeline 10 and the return pipeline 40 at different temperatures is determined. After determining the range of sediment content in the discharge pipeline 10 and the return pipeline 40 at different temperatures, the control component can determine the amount of sediment adhesion in the discharge pipeline 10 or the return pipeline 40 according to the temperature of the discharge pipeline 10 or the return pipeline 40 detected by the temperature sensor.

[0093] As a possible implementation, the coating supply device is as follows Figure 3As shown. When the discharge component 20 is closed, the control component can obtain the amount of sediment attached in the discharge pipeline 10 or the return pipeline 40, and control the valve opening of the flow control valve group 100 in the discharge pipeline 10 according to the amount of sediment attached, so as to control the conductance of the discharge pipeline 10 and the return pipeline 40. Among them, the amount of sediment attached is positively correlated with the valve opening of the flow control valve group 100, that is, the greater the amount of sediment attached, the greater the valve opening of the flow control valve group 100 is controlled, so that the conductance of the discharge pipeline 10 and the return pipeline 40 is greater, so that the sediment attached in the pipeline can be better flushed.

[0094] As another possible embodiment, the coating supply device is as follows: Figure 4 As shown. When the discharge component 20 is closed, the control component can obtain the amount of sediment attached in the discharge pipeline 10 or the return pipeline 40, and control the valve opening of the flow control valve group 100 in the discharge pipeline 10 and the valve opening of the flow valve group 102 in the discharge pipeline 10 according to the amount of sediment attached, so as to control the conductance of the discharge pipeline 10 and the return pipeline 40. Among them, the amount of sediment attached is positively correlated with the valve opening of the flow control valve group 100 and the valve opening of the flow valve group 102, that is, the greater the amount of sediment attached, the greater the valve opening of the flow control valve group 100 and the flow valve group 102, so that the conductance of the discharge pipeline 10 and the return pipeline 40 is greater, so that the sediment attached in the pipeline can be better flushed.

[0095] By controlling the conductance of the discharge pipeline and the return pipeline according to the amount of sediment attached in the discharge pipeline or the return pipeline when the discharge component is closed, the sediment attached in the pipeline can be better flushed, thereby further reducing the possibility of pipeline blockage due to paint precipitation and improving the reliability of the paint supply equipment.

[0096] To improve the fluidity of the coating in the pipeline and reduce the possibility of pipeline blockage, in some embodiments, Figure 5 As shown, the connecting pipe of the discharge pipeline 10 is provided with a first heating element 104 .

[0097] The first heating element 104 includes a component with a heating function, such as a PCT heating element or a heating tube, which can be arranged on any connecting pipe of the discharge pipeline 10, such as on the outer wall or inner wall of the connecting pipe, for heating the connecting pipe of the discharge pipeline 10. Exemplarily, the first heating element 104 can be arranged on the connecting pipe between the flow control valve group 100 and the feeding component 30, or on the connecting pipe between the flow control valve group 100 and the discharge component 20. Alternatively, the first heating element 104 can also be arranged on the connecting pipe between the flow control valve 1101, the water pump 1102, the filter 1103 and the pressure reducing valve 1104, such as on the connecting pipe between the pressure reducing valve 1104 and the flow control valve 1101, to heat the paint at the input end of the flow control valve 1101 to reduce the possibility of the paint settling in the flow control valve 1101.

[0098] When the paint flows through the discharge pipeline 10, the connecting pipe in the discharge pipeline 10 can be heated by the first heating element 104, such as by controlling the first heating element 104 to generate heat through a control component to heat the connecting pipe in the discharge pipeline 10, thereby utilizing the first heating element to heat the paint flowing through the discharge pipeline, thereby increasing the movement rate of the paint molecules, thereby increasing the fluidity of the paint in the connecting pipe of the discharge pipeline 10, thereby reducing the possibility of the paint forming sediment in the discharge pipeline due to low temperature, thereby reducing the possibility of pipeline blockage in the discharge pipeline.

[0099] In some embodiments, Figure 5 As shown, the connecting pipe of the return line 40 is provided with a second heating element 105 .

[0100] The second heating element 105 includes a component with a heating function, such as a PCT heating element or a heating tube, etc., which can be arranged on any connecting pipe of the return pipe 40, such as the outer wall or inner wall of the connecting pipe of the return pipe 40, for heating the connecting pipe of the return pipe 40. Exemplarily, the second heating element 105 can be arranged on the connecting pipe between the flow valve group 102 and the feeding assembly 30 to heat the paint at the input end of the flow valve group 102 to reduce the possibility of the paint precipitating in the flow valve group 102. It can also be arranged on the connecting pipe between the flow valve group 102 and the discharge assembly 20.

[0101] When the paint flows through the return pipe 40, the connecting pipe in the return pipe 40 can be heated by the second heating element 105, such as by controlling the second heating element 105 to generate heat through a control component to heat the connecting pipe in the return pipe 40, so that the paint flowing through the return pipe can be heated by the second heating element, thereby increasing the movement rate of the paint molecules to increase the fluidity of the paint in the pipe, thereby reducing the possibility of the paint forming sediment in the return pipe due to low temperature, thereby reducing the possibility of pipe blockage in the return pipe.

[0102] In some embodiments, Figure 6 As shown, the paint supply device also includes a stirring component 106 connected to the control component; the stirring component 106 is used to stir the paint in the supply component 30; the control component is also used to adjust the stirring speed of the stirring component 106 according to the amount of paint in the supply component 30; wherein the amount of paint is positively correlated with the stirring speed.

[0103] For example, Figure 6 As shown, the stirring assembly 106 includes a motor 1105 and a stirrer 1106 for stirring, the motor 1105 is used to control the stirring speed of the stirrer 1106, and the motor 1105 can be connected to the control assembly. The stirrer 1106, such as a stirring impeller, can be located in the cavity of the feeding assembly 30 to contact the coating in the cavity of the feeding assembly 30 and stir the coating in the cavity of the feeding assembly 30.

[0104] The control component can obtain the amount of paint in the feeding component 30, which can be uploaded by the user or determined by a liquid level sensor for detecting the liquid level height inside the feeding component 30. After obtaining the amount of paint in the feeding component 30, the control component can adjust the output power of the motor 1105 according to the amount of paint to adjust the stirring speed of the stirrer 1106. The amount of paint is positively correlated with the output power of the motor 1105, that is, the larger the amount of paint, the larger the output power of the motor 1105, and thus the faster the stirring speed of the stirrer 1106.

[0105] By providing a stirring component for stirring the paint in the supply component and adjusting the stirring speed of the stirring component according to the amount of paint in the supply component, the fluidity of the paint in the supply component is improved, the possibility of paint condensation in the supply component is reduced, and the reliability of the paint supply equipment is improved.

[0106] In some embodiments, Figure 6 As shown, the paint supply device further includes a heating component 107 connected to the control component; the heating component 107 is used to heat the paint in the feeding component 30;

[0107] The control component is also used to adjust the heating power of the heating component 107 according to the target temperature of the paint in the feeding component 30 so that the current temperature of the paint in the feeding component 30 is at the target temperature.

[0108] In some embodiments, the heating component 107 can be a device with heating function such as a heating tube, a heater or a heating blanket. The heating component can be arranged inside or outside the feeding component 30, such as on the inner wall or outer wall of the feeding component 30, for heating the paint in the feeding component 30.

[0109] The control component can obtain the current temperature of the paint in the feeding component 30, which can be uploaded by the user or determined by a temperature sensor for detecting the temperature of the paint in the feeding component 30. For example, the control component can be connected to a temperature sensor disposed in the cavity of the feeding component 30 to obtain the current temperature of the paint in the feeding component 30 through the temperature sensor.

[0110] After obtaining the current temperature of the paint in the feeding component 30, the control component can adjust the heating power of the heating component according to the temperature difference between the target temperature and the current temperature of the paint in the feeding component 30, so that the current temperature of the paint in the feeding component is at the target temperature. The target temperature can be set according to actual needs.

[0111] Figure 7 A flow chart of a control method for a paint supply device provided in an embodiment of the present application is shown. The control method for the paint supply device is applied to the paint supply device in any of the above embodiments, and specifically, can be applied to the control component in any of the above embodiments.

[0112] In some embodiments, the control method of the coating supply device includes:

[0113] S101, when the discharge component is turned on, in response to the alarm signal indicating abnormal paint flow detected by the flow sensor, a target flow range is determined according to the coating thickness requirement range of the coating object, and a target opening range of the flow control valve group is obtained to adjust the valve opening of the flow control valve group according to the target opening range.

[0114] In the case that the flow sensor detects an abnormal paint flow, the target flow range is determined by the coating thickness requirement range of the coating object, and the target opening range of the flow control valve group is obtained. The valve opening of the flow control valve group is adjusted according to the target opening range of the flow control valve group, so that the supplied paint can meet the coating thickness requirement of the coating object. There is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, so as to avoid the situation where the coating thickness of the coating object is abnormal due to adjusting the paint flow using the abnormal flow signal, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0115] In some embodiments, the paint supply device also includes a reflux pipeline; one end of the reflux pipeline is connected to one end of the discharge assembly, and the other end of the reflux pipeline is connected to the supply assembly, and a flow valve group is provided on the reflux pipeline.

[0116] When the discharge assembly is turned on, in response to an alarm signal indicating that the coating flow rate is abnormal detected by the flow sensor, the valve opening of the flow control valve group is adjusted according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group, including:

[0117] When the discharge component is opened, in response to the alarm signal indicating abnormal paint flow detected by the flow sensor, the target opening range of the flow control valve group is obtained according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group.

[0118] In some embodiments, a flow sensor unit for detecting the flow of paint in the return line is provided in the return line.

[0119] When the discharge assembly is turned on, in response to an alarm signal indicating that the coating flow rate is abnormal detected by the flow sensor, the valve opening of the flow control valve group is adjusted according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group, including:

[0120] When the discharge component is opened, in response to the alarm signal indicating abnormal paint flow detected by the flow sensor and the alarm signal indicating abnormal paint flow detected by the flow sensing unit, the target opening range of the flow control valve group is obtained according to the target flow range and the reflux flow peak value determined by the valve opening of the flow valve group.

[0121] In some embodiments, the above method also includes: in response to an alarm signal indicating that the paint flow detected by the flow sensor is abnormal, and a detection signal indicating that the paint flow detected by the flow sensing unit is normal, obtaining a target opening range of the flow control valve group according to the target flow range and the paint flow detected by the flow sensing unit.

[0122] In some embodiments, the above method also includes: when the discharge component is turned on, in response to the detection signal indicating that the paint flow detected by the flow sensor is normal, and the alarm signal indicating that the paint flow detected by the flow sensing unit is abnormal, adjusting the valve opening of the flow control valve group according to the paint flow detected by the flow sensor and the reflux flow peak value determined by the valve opening of the flow valve group.

[0123] In some embodiments, the method further includes: when the discharge assembly is closed, controlling the discharge pipeline and the return pipeline to be conductive.

[0124] In some embodiments, when the discharge component is closed, the conductance between the discharge pipeline and the return pipeline is controlled, including: when the discharge component is closed, controlling the conductance between the discharge pipeline and the return pipeline according to the amount of sediment attachment in the discharge pipeline or the return pipeline.

[0125] In some embodiments, the coating supply device further comprises a stirring component, wherein the stirring component is used to stir the coating in the supply component;

[0126] The above method also includes: adjusting the stirring speed of the stirring component according to the amount of paint in the feeding component; wherein the amount of paint is positively correlated with the stirring speed.

[0127] In some embodiments, the paint supply device further comprises a heating component for heating the paint in the supply component;

[0128] The above method also includes: adjusting the heating power of the heating component according to the target temperature of the paint in the feeding component so that the current temperature of the paint in the feeding component is at the target temperature.

[0129] Figure 8 A schematic structural block diagram of a control device for a coating supply device provided in an embodiment of the present application is shown. It should be understood that the device and Figure 7Corresponding to the method embodiment executed in, the steps involved in the aforementioned method can be executed. The specific functions of the device can be found in the description above. To avoid repetition, detailed description is appropriately omitted here. The device includes at least one software function module that can be stored in a memory in the form of software or firmware or solidified in the operating system (OS) of the device. Specifically, the device can be applied to the paint supply device in any of the above embodiments, and specifically, it can be applied to the detection component of the paint supply device. The device includes: an equipment control module 201, which is used to respond to the alarm signal indicating that the paint flow rate detected by the flow sensor is abnormal when the discharging component is turned on, and obtain the target opening range of the flow control valve group according to the target flow range determined according to the coating thickness requirement range of the coating object, so as to adjust the valve opening of the flow control valve group according to the target opening range.

[0130] In the technical solution of the embodiment of the present application, when the flow rate of paint detected by the flow sensor is abnormal, the target flow rate range is determined according to the coating thickness requirement range of the coating object, and the target opening range of the flow control valve group is obtained. According to the target opening range of the flow control valve group, the valve opening of the flow control valve group is adjusted so that the supplied paint can meet the coating thickness requirement of the coating object. There is no need to adjust the paint flow according to the abnormal flow signal of the flow sensor, thereby avoiding the situation where the coating thickness of the coating object is abnormal due to adjusting the paint flow using the abnormal flow signal, thereby reducing the impact of the abnormal flow sensor detection on the coating effect and improving the reliability of the paint supply equipment.

[0131] According to some embodiments of the present application, a flow sensor unit for detecting the paint flow in the return line is provided in the return line. The device control module 201 is specifically used to: when the discharge assembly is turned on, in response to an alarm signal indicating an abnormal paint flow detected by the flow sensor, and an alarm signal indicating an abnormal paint flow detected by the flow sensor, obtain a target opening range of the flow control valve group according to the target flow range and the return flow peak value determined by the valve opening of the flow valve group.

[0132] According to some embodiments of the present application, the device control module 201 is also used to: respond to an alarm signal indicating that the paint flow detected by the flow sensor is abnormal, and a detection signal indicating that the paint flow detected by the flow sensing unit is normal, and obtain a target opening range of the flow control valve group according to the target flow range and the paint flow detected by the flow sensing unit.

[0133] According to some embodiments of the present application, the equipment control module 201 is also used to: when the discharge component is turned on, in response to the detection signal indicating that the paint flow detected by the flow sensor is normal, and the alarm signal indicating that the paint flow detected by the flow sensing unit is abnormal, adjust the valve opening of the flow control valve group according to the paint flow detected by the flow sensor and the reflux flow peak value determined by the valve opening of the flow valve group.

[0134] According to some embodiments of the present application, the equipment control module 201 is also used to: when the discharge component is closed, control the discharge pipeline and the return pipeline to be conductive.

[0135] According to some embodiments of the present application, the equipment control module 201 is specifically used to: when the discharge component is closed, control the conductance of the discharge pipeline and the return pipeline according to the amount of sediment adhesion in the discharge pipeline or the return pipeline.

[0136] According to some embodiments of the present application, the paint supply device also includes a stirring component, which is used to stir the paint in the supply component; the equipment control module 201 is also used to: adjust the stirring speed of the stirring component according to the amount of paint in the supply component; wherein the amount of paint is positively correlated with the stirring speed.

[0137] According to some embodiments of the present application, the paint supply device also includes a heating component for heating the paint in the supply component; the equipment control module 201 is also used to: adjust the heating power of the heating component according to the target temperature of the paint in the supply component so that the current temperature of the paint in the supply component is at the target temperature.

[0138] According to some embodiments of the present application, Fig. 9 As shown, an embodiment of the present application provides an electronic device 300, including: a processor 301 and a memory 302, the processor 301 and the memory 302 are interconnected and communicate with each other through a communication bus 303 and / or other forms of connection mechanisms (not marked), the memory 302 stores a computer program executable by the processor 301, and when the computing device is running, the processor 301 executes the computer program to execute a method executed by an external terminal in any optional implementation method, for example: when the discharging component is turned on, in response to an alarm signal indicating an abnormal paint flow detected by the flow sensor, a target flow range is determined according to the coating thickness requirement range of the coating object, and a target opening range of the flow control valve group is obtained, so as to adjust the valve opening of the flow control valve group according to the target opening range.

[0139] The present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method in any of the aforementioned optional implementations is executed.

[0140] Among them, the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable red-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0141] The present application provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the method in any optional implementation manner.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A coating supply device, characterized in that: It includes a discharging pipeline, a discharging component and a control component for coating the coating object; One end of the discharge pipeline is connected to a feed assembly containing the coating, and the other end of the discharge pipeline is connected to an input end of the discharge assembly. A flow control valve group and a flow sensor are provided on the discharge pipeline. The control component is connected to the flow control valve group and the flow sensor, and is used to respond to the alarm signal indicating abnormal paint flow detected by the flow sensor when the discharge component is turned on, and obtain the target opening range of the flow control valve group according to the target flow range determined according to the coating thickness requirement range of the coating object, so as to adjust the valve opening of the flow control valve group according to the target opening range so that the valve opening of the flow control valve group is within the target opening range.

2. The coating material supply device according to claim 1, characterized in that: The coating material supply device also includes a return line; One end of the reflux pipeline is connected to one end of the discharging assembly, and the other end of the reflux pipeline is connected to the feeding assembly.

3. The coating material supply device according to claim 2, characterized in that: The return pipeline is provided with a flow valve group; The control component is specifically used to, when the discharge component is turned on, respond to an alarm signal indicating abnormal paint flow detected by a flow sensor, and obtain a target opening range of the flow control valve group based on the target flow range and a reflux flow peak value determined by the valve opening of the flow valve group.

4. The coating material supply device according to claim 3, characterized in that: The return line is provided with a flow sensor unit for detecting the flow of the coating material in the return line, and the control component is connected to the flow sensor unit; The control component is specifically used to, when the discharge component is turned on, respond to an alarm signal indicating abnormal paint flow detected by the flow sensor and an alarm signal indicating abnormal paint flow detected by the flow sensing unit, and obtain a target opening range of the flow control valve group based on the target flow range and a reflux flow peak value determined by the valve opening of the flow valve group.

5. The coating material supply device according to claim 4, characterized in that: The control component is also used for: When the discharge component is opened, in response to the alarm signal indicating that the paint flow detected by the flow sensor is abnormal, and the detection signal indicating that the paint flow detected by the flow sensing unit is normal, the target opening range of the flow control valve group is obtained according to the target flow range and the paint flow detected by the flow sensing unit.

6. The coating material supply device according to claim 4, characterized in that: The control component is also used for: When the discharge component is turned on, in response to the detection signal indicating that the paint flow detected by the flow sensor is normal, and the alarm signal indicating that the paint flow detected by the flow sensing unit is abnormal, the valve opening of the flow control valve group is adjusted according to the paint flow detected by the flow sensor and the reflux flow peak value determined by the valve opening of the flow valve group.

7. The coating material supply device according to any one of claims 2 to 6, characterized in that: The control component is also used for: When the discharge assembly is closed, the discharge pipeline and the return pipeline are controlled to be connected.

8. The coating material supply device according to claim 7, characterized in that: The control component is specifically used for: When the discharge assembly is closed, the conductance of the discharge pipeline and the return pipeline is controlled according to the amount of sediment attached in the discharge pipeline or the return pipeline.

9. The coating material supply device according to any one of claims 1 to 6 or 8, characterized in that: The connecting pipe of the discharge pipeline is provided with a first heating element.

10. The coating material supply device according to any one of claims 2 to 6 or 8, characterized in that: The connecting pipe of the return pipeline is provided with a second heating element.

11. The coating material supply device according to any one of claims 1 to 6 or 8, characterized in that: The coating supply device also includes a stirring assembly connected to the control assembly; The stirring component is used to stir the coating in the feeding component; The control component is also used to adjust the stirring speed of the stirring component according to the amount of paint in the feeding component; wherein the amount of paint is positively correlated with the stirring speed.

12. The coating material supply device according to any one of claims 1 to 6 or 8, characterized in that: The paint supply device also includes a heating component connected to the control component; The heating component is used to heat the coating in the feeding component; The control component is also used to adjust the heating power of the heating component according to the target temperature of the paint in the feeding component so that the current temperature of the paint in the feeding component is at the target temperature.

13. A control method for a coating supply device, characterized in that: Applied to the coating supply device according to any one of claims 1 to 12, the method comprises: When the discharge component is opened, in response to the alarm signal indicating abnormal paint flow detected by the flow sensor, a target flow range is determined according to the coating thickness requirement range of the coating object, and a target opening range of the flow control valve group is obtained, so that the valve opening of the flow control valve group is adjusted according to the target opening range so that the valve opening of the flow control valve group is within the target opening range.

14. A control device for a coating material supply device, characterized in that: Applied to the coating supply device according to any one of claims 1 to 12, the device comprises: The equipment control module is used to respond to the alarm signal indicating abnormal paint flow detected by the flow sensor when the discharge component is turned on, determine the target flow range according to the coating thickness requirement range of the coating object, obtain the target opening range of the flow control valve group, and adjust the valve opening of the flow control valve group according to the target opening range so that the valve opening of the flow control valve group is within the target opening range.

15. An electronic device comprising a processor and a memory storing a computer program, characterized in that: When the processor executes the computer program, the control method of the paint supply device according to claim 13 is implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the paint supply device according to claim 13 is implemented.

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