CN110170426B - Precise dispensing controller and dispensing control method thereof - Google Patents
Precise dispensing controller and dispensing control method thereof Download PDFInfo
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- CN110170426B CN110170426B CN201910555990.8A CN201910555990A CN110170426B CN 110170426 B CN110170426 B CN 110170426B CN 201910555990 A CN201910555990 A CN 201910555990A CN 110170426 B CN110170426 B CN 110170426B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/101—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1026—Valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides a precise dispensing controller and a dispensing control method thereof, wherein the precise dispensing controller comprises: the dispensing controller body is provided with a working air source input interface, a dispensing air pressure output interface and a quick exhaust output interface, wherein the working air source input interface is used for connecting an air source, and the dispensing air pressure output interface is used for connecting a glue barrel; the pressure reducing valve is connected between the air inlet of the discharge valve and the working air source input interface, and the air outlet of the discharge valve is connected with the dispensing air pressure output interface; the first air pressure sensor can collect real-time air pressure of a pipeline between an air outlet of the discharge valve and the dispensing air pressure output interface; a quick exhaust valve; and a control module. According to the precise dispensing controller provided by the invention, the self-adaptive adjustment of dispensing parameters, the alarm function of insufficient residual glue amount and the self-adaptive feedback control of return suction air pressure can be realized.
Description
Technical Field
The invention relates to the technical field of dispensing, in particular to a precise dispensing controller and a dispensing control method thereof.
Background
The conventional pneumatic dispensing controller is characterized in that an analogue barometer, a digital barometer or an air pressure sensor arranged in the pneumatic dispensing controller is connected to a pipeline between an air outlet of a pressure reducing valve and an air inlet of a discharge valve and used for measuring and displaying set air pressure, cannot monitor air pressure waveforms in a rubber barrel pipeline and does not have an air pressure monitoring function in the rubber barrel.
In a specific dispensing process, the dispensing parameters are determined when the glue barrel is full of glue, and the glue quantity in the glue barrel is gradually reduced along with the increase of the glue discharge times, so that the glue discharge quantity is also reduced. When the glue output is obviously reduced to be lower than the glue output requirement, an operator is required to change the glue dispensing parameters (generally, the glue output duration is properly increased). The core problem of this point gum application: firstly, an operator is required to change dispensing parameters for a plurality of times, and whether the changed parameters are suitable or not is also required to test and verify the glue quantity; secondly, the operator changes the dispensing parameters for a plurality of times, so that the dispensing quantity obviously fluctuates, namely, when the dispensing quantity obviously decreases, the dispensing parameters are changed suddenly, so that the next dispensing quantity obviously increases.
In summary, the dispensing operation not only requires the operator to adjust the parameters for many times, but also the dispensing consistency is difficult to be improved. When the residual glue solution is gradually reduced until no glue solution remains, the glue is suddenly dispensed, which causes abnormal glue dispensing procedures on automatic glue dispensing equipment or production lines and directly affects the whole process flow.
Disclosure of Invention
In view of this, the present invention provides a precise dispensing controller, which can realize the self-adaptive adjustment of dispensing parameters, the alarm function of insufficient residual glue amount, and the self-adaptive feedback control of the back suction air pressure.
The invention also provides a control method of the precise dispensing controller.
According to an embodiment of the first aspect of the present invention, a precise dispensing controller includes: the dispensing controller body is provided with a working air source input interface, a dispensing air pressure output interface and a quick exhaust output interface, wherein the working air source input interface is used for connecting an air source, and the dispensing air pressure output interface is used for connecting a glue barrel; the discharge valve is arranged in the dispensing controller body, and an air inlet of the discharge valve is connected with the working air source input interface; the pressure reducing valve is arranged in the dispensing controller body, an air inlet of the pressure reducing valve is connected with the working air source input interface, and an air outlet of the pressure reducing valve is connected with an air inlet of the discharge valve; the first air pressure sensor is arranged between the air outlet of the discharge valve and the dispensing air pressure output interface, and can collect real-time air pressure of a pipeline between the air outlet of the discharge valve and the dispensing air pressure output interface; one end of the quick exhaust valve is respectively connected with the air outlet of the exhaust valve, the dispensing air pressure output interface and the first air pressure sensor, and the other end of the quick exhaust valve is connected with the quick exhaust output interface; the control module is arranged in the dispensing controller body and is respectively electrically connected with the discharge valve, the pressure reducing valve, the first air pressure sensor and the quick exhaust valve so as to control the discharge valve, the pressure reducing valve, the first air pressure sensor and the quick exhaust valve, and the control module can continuously receive real-time air pressure collected by the first air pressure sensor and extract characteristic parameters of air pressure climbing after real-time processing.
According to the precise glue dispensing controller disclosed by the embodiment of the invention, during glue dispensing operation, the control module acquires the air pressure waveform of single glue dispensing in real time through the first air pressure sensor and extracts the characteristic parameter of air pressure climbing, the prediction of the current glue residual quantity is realized by the glue residual quantity prediction algorithm in the glue barrel, and the self-adaptive adjustment of the glue dispensing parameter and the alarm function of insufficient residual glue quantity can be realized based on the prediction of the glue residual quantity.
The precise dispensing controller according to the embodiment of the present invention may also have the following additional technical features.
According to one embodiment of the present invention, the dispensing controller body is further provided with a vacuum generator exhaust port, and the precise dispensing controller further includes a return air pressure generating device, and the return air pressure generating device includes: the pressure reducing valve for generating the back suction air pressure is characterized in that an air inlet of the pressure reducing valve for generating the back suction air pressure is connected with the working air source input interface; the vacuum generator is connected with the exhaust port of the exhaust valve through a vacuum generating port, the air inlet of the vacuum generator is connected with the air outlet of the pressure reducing valve for generating return suction air pressure, and the air outlet of the vacuum generator is connected with the exhaust port of the vacuum generator.
According to one embodiment of the present invention, a pipeline connecting a vacuum generating port of the vacuum generator and an exhaust port of the exhaust valve is a working port of the return air pressure generating device, and the precise dispensing controller further includes: the second air pressure sensor is connected with the working port of the back suction air pressure generating device, the second air pressure sensor can collect the back suction air pressure generated by the back suction air pressure generating device, and the second air pressure sensor is electrically connected with the control module and continuously receives the collection signals of the second air pressure sensor.
According to an embodiment of the present invention, the pressure reducing valve for generating the back suction air pressure is an electric proportional valve or an electric air pressure reducing valve.
According to one embodiment of the invention, the pressure reducing valve is a precision pressure reducing valve, an electric proportional valve or an electric pneumatic pressure reducing valve.
According to one embodiment of the invention, the discharge valve is formed as a two-position three-way solenoid valve.
According to one embodiment of the invention, the quick exhaust valve is formed as a two-position three-way solenoid valve, and the flow rate of the quick exhaust valve is greater than the flow rate of the exhaust valve.
According to a second aspect of the present invention, a method for controlling the dispensing of a precision dispensing controller includes the steps of: s1, setting a point glue parameter; s2, connecting one of the full glue barrel or the empty glue barrel to a glue dispensing air pressure output interface of the precise glue dispensing controller through a pipe; s3, according to the prompt of a man-machine interaction menu item of the precise dispensing controller, operating the precise dispensing controller to collect air pressure waveforms when one of the glue barrels is full or empty; s4, connecting the other one of the empty glue barrel and the full glue barrel through a pipe to a glue dispensing air pressure output interface of the precise glue dispensing controller; s5, according to the prompt of a man-machine interaction menu item of the precise dispensing controller, operating the precise dispensing controller to collect air pressure waveforms when the other one of the empty glue barrel and the full glue barrel is executed; and S6, the precise dispensing controller automatically executes calculation and storage of calibration parameters according to the acquired air pressure waveforms of the full glue barrel and the empty glue barrel.
According to one embodiment of the present invention, the method for controlling the dispensing of the precise dispensing controller further comprises the following steps: s7, determining whether to start the function according to the requirement of the residual quantity alarming function; if the function is started, setting a residual quantity alarm threshold value and related parameters through a man-machine interaction menu item of the precise dispensing controller after starting; s8, connecting a glue barrel filled with glue solution to a glue dispensing air pressure output interface of the precise glue dispensing controller through a piping; s9, the precise dispensing controller enters a standby state for preparing dispensing, and waits for a dispensing trigger signal; s10, when the precise dispensing controller receives a dispensing trigger signal, outputting dispensing air pressure from a dispensing air pressure output interface according to the current dispensing parameters, and simultaneously, performing air pressure waveform acquisition by a first air pressure sensor, wherein the precise dispensing controller predicts the residual quantity of the glue solution in the glue barrel based on the air pressure waveform acquired in real time and the stored calibration parameters; s11, the precise dispensing controller corrects and automatically updates dispensing parameters based on the predicted residual quantity of the glue in the glue barrel; s12, if the residual quantity alarming function is started, the predicted residual quantity of the glue solution in the glue barrel is lower than a set glue solution residual quantity alarming threshold value, and the precise glue dispensing controller generates a low-liquid alarming signal; jump to step S9.
According to one embodiment of the invention, the dispensing parameters include dispensing duration, operating air pressure, and back suction air pressure.
Drawings
FIG. 1 is a schematic diagram of a precise dispensing controller according to an embodiment of the present invention;
fig. 2 is a flowchart of a glue outlet control method of a precise glue dispensing controller according to an embodiment of the invention.
Reference numerals:
a precision dispensing controller 100; a dispensing controller body 10; a hose 11; a dispensing air pressure output interface 12; a rapid exhaust output interface 13; a vacuum generator exhaust interface 14; a working gas source input interface 15; a discharge valve 20; a first air pressure sensor 30; a quick exhaust valve 40; a control module 50; a vacuum generator 60; a second air pressure sensor 70; a pressure reducing valve 80; a pressure reducing valve 90 for generating return suction pressure.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The precise dispensing controller 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the precise dispensing controller 100 according to the embodiment of the present invention includes a dispensing controller body 10, a discharge valve 20, a pressure reducing valve 80, a first air pressure sensor 30, a quick exhaust valve 40, and a control module 50.
Specifically, a working air source input interface 15, a dispensing air pressure output interface 12 and a quick exhaust air output interface 13 are arranged on the dispensing controller body 10, the working air source input interface 15 is used for connecting an air source, the dispensing air pressure output interface 12 is used for connecting a glue barrel, the exhaust valve 20 is arranged in the dispensing controller body 10, an air inlet of the exhaust valve 20 is connected with the working air source input interface 15, a pressure reducing valve 80 is arranged in the dispensing controller body 10, an air inlet of the pressure reducing valve 80 is connected with the working air source input interface 15, an air outlet of the pressure reducing valve 80 is connected with an air inlet of the exhaust valve 20, a first air pressure sensor 30 is arranged between an air outlet of the exhaust valve 20 and the dispensing air pressure output interface 12, a first air pressure sensor 30 can acquire real-time air pressure of a pipeline between the air outlet of the exhaust valve 20 and the dispensing air pressure output interface 12, one end of the quick exhaust valve 40 is respectively connected with the air outlet of the exhaust valve 20, the dispensing air pressure output interface 12 and the first air pressure sensor 30, the other end of the quick exhaust valve is connected with the quick exhaust air output interface 13, a control module 50 is arranged in the dispensing controller body 10, and is respectively connected with the pressure reducing valve 80, the quick exhaust air pressure sensor 30 and the quick exhaust air pressure sensor 30 can continuously process real-time air pressure parameters of the pressure sensor 30 after the pressure sensor 30 is respectively connected with the pressure sensor 30 and the pressure sensor 30, and the quick exhaust air pressure sensor is processed.
In other words, the precise dispensing controller 100 mainly comprises a dispensing controller body 10, a discharge valve 20, a pressure reducing valve 80, a first air pressure sensor 30, a quick exhaust valve 40 and a control module 50, wherein in a single dispensing operation, the first air pressure sensor 30 collects the rising, stabilizing and falling of the working air pressure in real time, and the control module 50 processes the collected data to form a complete air pressure waveform curve.
The precise dispensing controller 100 specifically works as follows: according to the volume of the glue barrel and the length of the piping, the glue barrel is connected to the glue dispensing air pressure output interface 12 of the precise glue dispensing controller 100 through the piping, and the precise glue dispensing controller 100 performs glue dispensing operation according to the set working parameters (including glue discharging duration time, working air pressure and back suction air pressure). As the residual amount of the glue solution in the glue barrel is reduced, the air pressure climbing process is gradually slowed down in the whole working air pressure waveform acquired by the first air pressure sensor 30, and no obvious difference exists between the air pressure stabilizing and descending processes. Accordingly, key parameters are extracted from waveform differences in the air pressure climbing process acquired by the first air pressure sensor 30, and accurate prediction of the residual quantity of glue in the glue barrel can be achieved.
It should be noted that, based on the function of predicting the residual amount of glue in the glue barrel of the first air pressure sensor 30, the air pressure climbing characteristic parameters of the two working conditions of full and empty of the glue barrel need to be extracted and calibrated before the glue dispensing operation is performed. Before dispensing operation, the full glue barrel and the empty glue barrel are required to be connected to the dispensing air pressure output interface 12 through pipes respectively, the precise dispensing controller 100 enters a calibration mode, the control module 50 interacts with the first air pressure sensor 30, the discharge valve 20, the pressure reducing valve 80 and the quick exhaust valve 40, working air pressure collection is carried out when the full glue barrel (or the empty glue barrel) is connected, and the air pressure climbing rate is extracted from the collected waveforms, so that air pressure climbing characteristic parameters of the two working conditions of full glue barrel and empty glue barrel are respectively extracted and calibrated.
During dispensing operation, the control module 50 interacts with the first air pressure sensor 30, the discharge valve 20, the pressure reducing valve 80 and the quick exhaust valve 40, air pressure waveforms of single glue discharge are collected in real time, characteristic parameters of air pressure climbing are extracted, and accurate prediction of the current glue remaining amount is realized by a glue barrel glue remaining amount prediction algorithm built in the control module 50.
Based on the accurate prediction of the residual glue solution, the accurate glue dispensing controller 100 can continuously adjust the glue dispensing parameters according to different residual glue solutions during the glue dispensing operation, so as to realize extremely high consistency of the glue dispensing liquid amount; the alarm function of insufficient glue remaining amount can be started, and when the glue remaining amount is lower than a set alarm threshold value, the precise glue dispensing controller 100 outputs an alarm signal of insufficient glue remaining amount to prompt the filling or replacement of the glue.
Therefore, according to the precise dispensing controller 100 of the embodiment of the present invention, the first air pressure sensor 30 is disposed through the working air pressure output air path between the air outlet of the discharge valve 20 and the working air pressure output port (the working air pressure output port refers to the air path joint penetrating through the panel of the controller, and the air path joint is connected with the air outlet of the discharge valve 20 inside the control module 50), and during dispensing operation, the first air pressure sensor 30 collects the air pressure waveform of single dispensing in real time and extracts the characteristic parameter of air pressure climbing, and the prediction of the current residual amount of glue is realized by the glue residual amount prediction algorithm in the glue barrel, and the working parameter of the dispensing controller is automatically adjusted, so that the extremely high consistency of the dispensing amount of glue in the whole dispensing process of glue barrel glue from full to empty is realized.
According to some embodiments of the present invention, the dispensing controller body 10 is further provided with a vacuum generator exhaust port 14, and the precision dispensing controller 100 further includes a back suction pressure generating device including a pressure reducing valve 90 for generating back suction pressure and a vacuum generator 60.
Specifically, the intake port of the pressure reducing valve 90 for generating back suction air pressure is connected to the working air source input port 15, the vacuum generating port of the vacuum generator 60 is connected to the exhaust port of the exhaust valve 20, the intake port of the vacuum generator 60 is connected to the exhaust port of the pressure reducing valve 90 for generating back suction air pressure, and the exhaust port of the vacuum generator 60 is connected to the exhaust port 14 of the vacuum generator.
Specifically, after the precise dispensing controller 100 starts the back suction function, the control module 50 interacts with the first air pressure sensor 30 and the pressure reducing valve 90 for generating the back suction air pressure, and performs real-time feedback adjustment to realize self-adaptive control of the back suction air pressure. The self-adaptive control of the back suction air pressure can ensure that the glue outlet of the needle at the tail end of the glue barrel is free from dripping and bubble mixing of glue solution in the intermittent time of the glue dispensing operation, and ensure accurate glue dispensing consistency during the glue dispensing operation.
According to an embodiment of the present invention, the vacuum generating port of the vacuum generator 60 and the pipe connected to the exhaust port of the exhaust valve 20 are working ports of the back suction air pressure generating device, and the precise dispensing controller 100 further includes: the second air pressure sensor 70 is connected with the working port of the back air pressure generating device, the second air pressure sensor 70 can collect the back air pressure generated by the back air pressure generating device, and the second air pressure sensor 70 is electrically connected with the control module 50 and continuously receives the collection signal thereof by the control module 50.
Specifically, a second air pressure sensor 70 is disposed between the discharge valve 20 and the vacuum generating port of the vacuum generator 60, the second air pressure sensor 70 being capable of collecting the suction air pressure of the line between the discharge valve 20 and the vacuum generating port of the vacuum generator 60, the second air pressure sensor 70 being electrically connected to the control module 50 and continuously receiving its air pressure collection signal by the control module 50.
That is, the second air pressure sensor 70 is disposed at the working port of the back suction air pressure generating device between the vacuum generator 60 and the exhaust port of the exhaust valve 20, and after the back suction air pressure is opened, the second air pressure sensor 70 collects the back suction air pressure in real time and interacts with the control module 50 to realize the self-adaptive feedback control of the back suction air pressure.
Alternatively, the pressure reducing valve 90 for generating the back suction air pressure is an electric proportional valve or an electric air pressure reducing valve. Preferably, the pressure reducing valve 80 is a precision pressure reducing valve, an electric proportional valve or an electric air pressure reducing valve, and the pressure reducing valve 90 for generating the back suction air pressure and the pressure reducing valve 80 are conventional elements, so that the materials are convenient to obtain.
According to one embodiment of the present invention, the discharge valve 20 is formed as a two-position three-way solenoid valve, and the discharge valve 20 is a conventional element, and the materials are easily obtained.
In one embodiment of the present invention, the quick exhaust valve 40 is formed as a two-position three-way solenoid valve, and the flow rate of the quick exhaust valve 40 is greater than the flow rate of the exhaust valve 20. The quick exhaust valve 40 is also a conventional component, and the materials are convenient to obtain.
The joints of the elements are connected through the hose 11 respectively, and the hose 11 is convenient to connect and install.
The method for controlling the dispensing of the precise dispensing controller 100 according to the second embodiment of the present invention includes the following steps:
s1, setting a point glue parameter;
s2, connecting one of the full glue barrel or the empty glue barrel to a glue dispensing air pressure output interface 12 of the precise glue dispensing controller 100 through a pipe;
s3, according to the prompt of a man-machine interaction menu item of the precise dispensing controller 100, operating the precise dispensing controller 100 to perform air pressure waveform acquisition when one of the glue barrels is full or empty;
s4, connecting the other one of the empty glue barrel and the full glue barrel to a glue dispensing air pressure output interface 12 of the precise glue dispensing controller 100;
s5, according to the prompt of a man-machine interaction menu item of the precise dispensing controller 100, operating the precise dispensing controller 100 to perform air pressure waveform acquisition when the other one of the glue barrel is empty or full;
s6, the precise dispensing controller 100 automatically performs calculation and storage of calibration parameters according to the air pressure waveforms acquired by the full glue barrel and the empty glue barrel.
That is, as shown in fig. 2, before dispensing, the full and empty glue barrels need to be connected to the dispensing air pressure output interface 12 through pipes, the precise dispensing controller 100 enters the calibration mode, and the control module 50 interacts with the first air pressure sensor 30, the discharge valve 20, the pressure reducing valve 80 and the quick exhaust valve 40 to collect working air pressure when the full glue barrel (or the empty glue barrel) is connected and extract the air pressure climbing rate from the collected waveforms, so as to respectively complete the extraction and calibration of the air pressure climbing characteristic parameters of the full and empty glue barrels.
In one embodiment of the present invention, the method for controlling the dispensing of the precision dispensing controller 100 further includes the following steps:
s7, determining whether to start the function according to the requirement of the residual quantity alarming function; if the function is started, setting a residual quantity alarm threshold value and related parameters through a man-machine interaction menu item of the precise dispensing controller 100 after starting;
s8, connecting a glue barrel filled with glue solution to a glue dispensing air pressure output interface 12 of the precise glue dispensing controller 100 through a pipe;
s9, the precise dispensing controller 100 enters a standby state for preparing dispensing and waits for a dispensing trigger signal;
s10, when the precise dispensing controller 100 receives a dispensing trigger signal, outputting dispensing air pressure from a dispensing air pressure output interface 12 according to the current dispensing parameters, and simultaneously, executing air pressure waveform acquisition by a first air pressure sensor 30, wherein the precise dispensing controller 100 predicts the residual quantity of the glue solution in the glue barrel based on the air pressure waveform acquired in real time and the stored calibration parameters;
s11, the precise dispensing controller 100 corrects and automatically updates dispensing parameters based on the predicted residual quantity of the glue in the glue barrel;
s12, if the residual quantity alarming function is started, the predicted residual quantity of the glue solution in the glue barrel is lower than a set glue solution residual quantity alarming threshold value, and the precise glue dispensing controller 100 generates a low-liquid alarming signal; jump to step S9.
Specifically, during dispensing operation, the control module 50 interacts with the first air pressure sensor 30, the discharge valve 20, the pressure reducing valve 80 and the quick exhaust valve 40, air pressure waveforms of single glue discharge are collected in real time, characteristic parameters of air pressure climbing are extracted, and accurate prediction of the current glue remaining amount is achieved by a glue barrel glue remaining amount prediction algorithm built in the control module 50.
Based on the accurate prediction of the residual glue solution, the accurate glue dispensing controller 100 can continuously adjust the glue dispensing parameters according to different residual glue solutions during the glue dispensing operation, so as to realize extremely high consistency of the glue dispensing liquid amount; the alarm function of insufficient glue remaining amount can be started, and when the glue remaining amount is lower than a set alarm threshold value, the precise glue dispensing controller 100 outputs an alarm signal of insufficient glue remaining amount to prompt the filling or replacement of the glue.
After the precise dispensing controller 100 starts the back suction function, the control module 50 interacts with the first air pressure sensor 30 and the pressure reducing valve 90 for generating the back suction air pressure, and performs feedback adjustment in real time to realize self-adaptive control of the back suction air pressure. The self-adaptive control of the back suction air pressure can ensure that the glue outlet of the needle at the tail end of the glue barrel is free from dripping and bubble mixing of glue solution in the intermittent time of the glue dispensing operation, and ensure accurate glue dispensing consistency during the glue dispensing operation.
Preferably, the dispensing parameters comprise the dispensing duration, the working air pressure and the back suction air pressure, and the dispensing parameters are convenient to measure and adjust and convenient to operate.
In summary, the method can predict the residual quantity of the glue solution in the glue barrel in real time, automatically adjust the working parameters of the glue dispensing controller, and realize extremely high consistency of the glue solution dispensing quantity in the whole process of dispensing the glue solution from full to empty; predicting the residual quantity of the glue in the glue barrel in real time, setting a glue residual quantity alarm threshold value, prompting that the residual quantity of the glue in the current glue barrel is insufficient, and avoiding the glue dispensing operation in the state of less glue or even no glue; based on the self-adaptive feedback control of the back suction air pressure, the glue outlet of the needle at the tail end of the glue barrel can be ensured to have no dripping and bubble mixing of glue solution in the intermittent time of the glue dispensing operation, and the accurate glue dispensing consistency during the glue dispensing operation is ensured.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (9)
1. The glue outlet control method of the precise glue dispensing controller is characterized by comprising the following steps of: s1, setting a point glue parameter;
s2, connecting one of the full glue barrel or the empty glue barrel to a glue dispensing air pressure output interface of the precise glue dispensing controller through a pipe;
s3, according to the prompt of a man-machine interaction menu item of the precise dispensing controller, operating the precise dispensing controller to collect air pressure waveforms when one of the glue barrels is full or empty;
s4, connecting the other one of the empty glue barrel or the full glue barrel to a glue dispensing air pressure output interface of the precise glue dispensing controller through a pipe;
s5, according to the prompt of a man-machine interaction menu item of the precise dispensing controller, operating the precise dispensing controller to collect air pressure waveforms when the other one of the empty glue barrel and the full glue barrel is executed;
s6, the precise dispensing controller automatically executes calculation and storage of calibration parameters according to the acquired air pressure waveforms of the full glue barrel and the empty glue barrel;
s7, determining whether to start the function according to the requirement of the residual quantity alarming function; if the function is started, setting a residual quantity alarm threshold value and related parameters through a man-machine interaction menu item of the precise dispensing controller after starting;
s8, connecting a glue barrel filled with glue solution to a glue dispensing air pressure output interface of the precise glue dispensing controller through a piping;
s9, the precise dispensing controller enters a standby state for preparing dispensing, and waits for a dispensing trigger signal;
s10, when the precise dispensing controller receives a dispensing trigger signal, outputting dispensing air pressure from a dispensing air pressure output interface according to the current dispensing parameters, and simultaneously, performing air pressure waveform acquisition by a first air pressure sensor, wherein the precise dispensing controller predicts the residual quantity of the glue solution in the glue barrel based on the air pressure waveform acquired in real time and the stored calibration parameters;
s11, the precise dispensing controller corrects and automatically updates dispensing parameters based on the predicted residual quantity of the glue in the glue barrel;
s12, if the residual quantity alarming function is started, the predicted residual quantity of the glue solution in the glue barrel is lower than a set glue solution residual quantity alarming threshold value, and the precise glue dispensing controller generates a low-liquid alarming signal; jump to step S9.
2. The method of claim 1, wherein the dispensing parameters include dispensing duration, operating air pressure, and back suction air pressure.
3. A precision dispensing controller for implementing the dispensing control method of claim 1, comprising:
the dispensing controller body is provided with a working air source input interface, a dispensing air pressure output interface and a quick exhaust output interface, wherein the working air source input interface is used for connecting an air source, and the dispensing air pressure output interface is used for connecting a glue barrel;
the discharge valve is arranged in the dispensing controller body, and an air inlet of the discharge valve is connected with the working air source input interface;
the pressure reducing valve is arranged in the dispensing controller body, an air inlet of the pressure reducing valve is connected with the working air source input interface, and an air outlet of the pressure reducing valve is connected with an air inlet of the discharge valve;
the first air pressure sensor is arranged between the air outlet of the discharge valve and the dispensing air pressure output interface, and can collect real-time air pressure of a pipeline between the air outlet of the discharge valve and the dispensing air pressure output interface;
one end of the quick exhaust valve is respectively connected with the air outlet of the exhaust valve, the dispensing air pressure output interface and the first air pressure sensor, and the other end of the quick exhaust valve is connected with the quick exhaust output interface;
the control module is arranged in the dispensing controller body and is respectively electrically connected with the discharge valve, the pressure reducing valve, the first air pressure sensor and the quick exhaust valve so as to control the discharge valve, the pressure reducing valve, the first air pressure sensor and the quick exhaust valve, and the control module can continuously receive real-time air pressure collected by the first air pressure sensor and extract characteristic parameters of air pressure climbing after real-time processing.
4. The precise dispensing controller of claim 3 wherein the dispensing controller body is further provided with a vacuum generator exhaust port, the precise dispensing controller further comprising a return suction pressure generating device comprising: the pressure reducing valve for generating the back suction air pressure is characterized in that an air inlet of the pressure reducing valve for generating the back suction air pressure is connected with the working air source input interface;
the vacuum generator is connected with the exhaust port of the exhaust valve through a vacuum generating port, the air inlet of the vacuum generator is connected with the air outlet of the pressure reducing valve for generating return suction air pressure, and the air outlet of the vacuum generator is connected with the exhaust port of the vacuum generator.
5. The precise dispensing controller of claim 4, wherein the vacuum generating port of the vacuum generator is connected to the exhaust port of the exhaust valve to form a working port of the return suction pressure generating device, the precise dispensing controller further comprising: the second air pressure sensor is connected with the working port of the back suction air pressure generating device, the second air pressure sensor can collect the back suction air pressure generated by the back suction air pressure generating device, and the second air pressure sensor is electrically connected with the control module and continuously receives the collection signals of the second air pressure sensor.
6. The precise dispensing controller according to claim 4, wherein the return air pressure generating pressure reducing valve is an electric proportional valve or an electric air pressure reducing valve.
7. The precision dispensing controller of claim 3, wherein the pressure reducing valve is a precision pressure reducing valve, an electrical proportional valve, or an electro-pneumatic pressure reducing valve.
8. A precision dispensing controller as claimed in claim 3, wherein the bleed valve is formed as a two-position three-way solenoid valve.
9. The precision dispensing controller of claim 8, wherein the quick vent valve is formed as a two-position three-way solenoid valve and the flow rate of the quick vent valve is greater than the flow rate of the vent valve.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555990.8A CN110170426B (en) | 2019-06-25 | 2019-06-25 | Precise dispensing controller and dispensing control method thereof |
| JP2020573263A JP7100719B2 (en) | 2019-06-25 | 2019-12-31 | Dispense control equipment and its discharge control method |
| SG11202101447VA SG11202101447VA (en) | 2019-06-25 | 2019-12-31 | Dispensing control apparatus and glue discharging control method thereof |
| PL19935282.4T PL3991855T3 (en) | 2019-06-25 | 2019-12-31 | Glue dispensing control apparatus and glue outlet control method therefor |
| KR1020207037841A KR102450258B1 (en) | 2019-06-25 | 2019-12-31 | Dispensing control device and adhesive discharge control method by the same |
| EP19935282.4A EP3991855B1 (en) | 2019-06-25 | 2019-12-31 | Glue dispensing control apparatus and glue outlet control method therefor |
| PCT/CN2019/130259 WO2020258815A1 (en) | 2019-06-25 | 2019-12-31 | Glue dispensing control apparatus and glue outlet control method therefor |
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| CN201910555990.8A CN110170426B (en) | 2019-06-25 | 2019-06-25 | Precise dispensing controller and dispensing control method thereof |
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| CN110170426B true CN110170426B (en) | 2023-04-25 |
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| KR102450258B1 (en) * | 2019-06-25 | 2022-09-30 | 창저우 밍실 로봇 테크놀로지 컴퍼니 리미티드 | Dispensing control device and adhesive discharge control method by the same |
| CN110639763A (en) * | 2019-09-17 | 2020-01-03 | 中国电子科技集团公司第十一研究所 | Dispensing method and system |
| CN110679999B (en) * | 2019-11-05 | 2022-05-24 | 龙岩烟草工业有限责任公司 | Glue storage device, glue conveying system and tobacco machinery |
| CN111680749B (en) * | 2020-06-08 | 2023-11-07 | 北京百度网讯科技有限公司 | Method and device for obtaining output result of dispenser |
| CN114570605A (en) * | 2022-03-18 | 2022-06-03 | 中国兵器装备集团自动化研究所有限公司 | Glue solution compensation-based large-specific-gravity glue solution dispensing device and control method |
| CN114833039B (en) * | 2022-04-20 | 2023-04-28 | 上海师范大学 | Time-pressure dispensing system colloid allowance prediction method based on deep learning |
| CN115155953A (en) * | 2022-07-13 | 2022-10-11 | 吴宪君 | Intelligent output and supplement device suitable for viscous fluid and use method thereof |
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| US5636763A (en) * | 1993-11-04 | 1997-06-10 | Furness; Geoffrey M. | Gas pressurized liquid delivery system |
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| TWI496623B (en) * | 2013-07-09 | 2015-08-21 | All Ring Tech Co Ltd | Method and device for measuring the amount of residual glue in valve |
| CN105521923B (en) * | 2015-03-26 | 2018-09-07 | 苏州光宝科技股份有限公司 | Dispensing controller |
| CN106423754A (en) * | 2016-10-20 | 2017-02-22 | 常州铭赛机器人科技股份有限公司 | Glue dispensing controller and glue outlet air pressure closed-loop control method thereof |
| CN109724667B (en) * | 2017-10-30 | 2022-08-05 | 诺信公司 | Method and system for detecting volume percentage of liquid in container and dispenser with system |
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| CN208574866U (en) * | 2018-07-23 | 2019-03-05 | 辽宁中蓝电子科技有限公司 | Dispensing controller |
| CN109855925B (en) * | 2019-03-04 | 2021-07-30 | 上海交通大学 | High-temperature high-pressure high-steam concentration aerosol on-line measuring device with calibration function |
| CN210159896U (en) * | 2019-06-25 | 2020-03-20 | 常州铭赛机器人科技股份有限公司 | Precise dispensing controller |
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