Precise dispensing controller and dispensing equipment

Abstract

The utility model relates to the technical field of dispensing, and discloses a precise dispensing controller and dispensing equipment. And the dispensing controller comprises a plurality of air pressure sensors which are used for collecting air pressure data of the air source air inlet, the dispensing air outlet and the vacuum generator in real time and transmitting the air pressure data to the control unit. And the control unit is used for processing and analyzing the air pressure data transmitted by the air pressure sensors in real time and outputting compensation signals to the electronic pressure regulating valves. And the plurality of electronic pressure regulating valves are used for regulating the intake air pressure of the intake air source in real time according to the compensation signal, and outputting the regulated intake air pressure of the first path of intake air source as positive air pressure to the two-position three-way electromagnetic valve. And the vacuum generator is used for generating negative air pressure based on the adjusted air inlet pressure of the second path of air inlet source and outputting the negative air pressure to the two-position three-way electromagnetic valve. And the two-position three-way electromagnetic valve is used for switching positive air pressure and negative air pressure and outputting the positive air pressure and the negative air pressure to the dispensing air outlet. Therefore, the dispensing amount output by the precise dispensing controller is accurately controlled, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of glue dispensing technology, especially to a precise glue dispensing controller and glue dispensing equipment. BACKGROUND

[0002] In the existing glue dispensing controller, the glue dispensing precision is the key factor to ensure product quality. The glue dispensing precision of the glue dispensing controller is affected by various factors, including but not limited to the following points: 1) glue viscosity changes: the viscosity of glue changes due to formula differences or changes in environmental conditions, affecting the flowability and adhesion of glue dispensing; 2) glue remaining amount changes in the needle cylinder: as the glue is used, the remaining amount of glue in the needle cylinder decreases, which may cause pressure changes and thus affect the consistency of glue dispensing; 3) different lengths of air pipes: different lengths of air pipes will cause delay in air pressure transmission and pressure loss, affecting the response speed and precision of glue dispensing. The above factors will cause the glue dispensing amount controlled by the glue dispensing controller to be inaccurate, affecting product quality and production efficiency. SUMMARY

[0003] The embodiments of the utility model aim to provide a precise glue dispensing controller and glue dispensing equipment, and solve the problem of inaccurate glue dispensing amount output by the existing glue dispensing controller, affecting product quality and production efficiency.

[0004] To solve the above technical problems, the utility model provides a precise glue dispensing controller in the first aspect of embodiment, including control unit, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves, two-position three-way electromagnetic valve, vacuum generator, air inlet and glue dispensing outlet, wherein:

[0005] A plurality of air pressure sensors are respectively connected with the control unit, the vacuum generator, the air inlet and the glue dispensing outlet, for real-time monitoring and collecting the air inlet pressure data of the air inlet, the air outlet pressure data of the glue dispensing outlet and the negative pressure data of the vacuum generator, and transmitting to the control unit through a high-speed communication interface;

[0006] The control unit is connected with a plurality of electronic pressure regulating valves, for real-time processing and analyzing various air pressure data transmitted by a plurality of air pressure sensors, and outputting compensation signals to a plurality of electronic pressure regulating valves;

[0007] A plurality of electronic pressure regulating valves are respectively connected with the air inlet and the two-position three-way electromagnetic valve, for real-time adjusting the air inlet pressure of the air source flowing through the electronic pressure regulating valve from the air inlet according to the compensation signal output by the control unit, and outputting the adjusted air inlet pressure of the first air source as positive pressure to the two-position three-way electromagnetic valve;

[0008] The vacuum generator is connected with one of the electronic pressure regulating valves, and is used for generating negative pressure based on the adjusted second air inlet pressure, and outputting to the two-position three-way electromagnetic valve;

[0009] The two-position three-way electromagnetic valve is used for switching the output pressure of the received positive pressure and negative pressure, and outputting to the glue dispensing outlet.

[0010] Optionally, the precise glue dispensing controller comprises a first air pressure sensor, a second air pressure sensor and a third air pressure sensor;

[0011] The first air pressure sensor is connected with the control unit and the air inlet respectively, and is used for monitoring and collecting the air inlet pressure data of the air inlet in real time, and transmitting the air inlet pressure data to the control unit through the high-speed communication interface;

[0012] The second air pressure sensor is connected with the control unit and the vacuum generator, and is used for monitoring and collecting the negative pressure data of the vacuum generator in real time, and transmitting the negative pressure data to the control unit through the high-speed communication interface;

[0013] The third air pressure sensor is connected with the control unit and the glue dispensing outlet, and is used for monitoring and collecting the outlet pressure data of the glue dispensing outlet in real time, and transmitting the outlet pressure data to the control unit through the high-speed communication interface.

[0014] Optionally, the precise glue dispensing controller comprises a first electronic pressure regulating valve and a second electronic pressure regulating valve;

[0015] The first electronic pressure regulating valve is connected with the control unit and the air inlet respectively, and is used for adjusting the air inlet pressure of the air inlet flowing through the first electronic pressure regulating valve from the air inlet according to the compensation signal output by the control unit;

[0016] The second electronic pressure regulating valve is connected with the control unit and the air inlet respectively, and is used for adjusting the air inlet pressure of the air inlet flowing through the second electronic pressure regulating valve from the air inlet according to the compensation signal output by the control unit.

[0017] Optionally, the precise glue dispensing controller further comprises a first air tank, and the first air tank is connected with the first electronic pressure regulating valve, and is used for stabilizing the air inlet pressure of the first air inlet output by the first electronic pressure regulating valve and outputting the first air inlet as positive pressure to the two-position three-way electromagnetic valve.

[0018] Optionally, the precise glue dispensing controller further comprises a second air tank, and the second air tank is connected with the second electronic pressure regulating valve, and is used for stabilizing the air inlet pressure of the second air inlet output by the second electronic pressure regulating valve and outputting the second air inlet to the vacuum generator.

[0019] Optionally, the precision dispensing controller further comprises a fourth air pressure sensor connected with the control unit, the first air tank and the second air tank respectively, for monitoring and collecting air pressure data in the first air tank and the second air tank in real time, and transmitting the air pressure data to the control unit through the high-speed communication interface.

[0020] Optionally, the high-speed communication interface is an I2C interface or an SPI interface.

[0021] Optionally, the vacuum generator is connected with the second air tank, for generating negative pressure from the air pressure of the second air source after pressure stabilization of the second air tank, and outputting the negative pressure to the two-position three-way electromagnetic valve.

[0022] Optionally, the precision dispensing controller further comprises a user interaction module connected with the control unit, for setting dispensing parameters and displaying dispensing states by the user.

[0023] Correspondingly, the utility model discloses a second aspect embodiment provides a kind of dispensing equipment, comprising the precision dispensing controller of the first aspect embodiment of the utility model.

[0024] Compared with the prior art, the precision dispensing controller and dispensing equipment provided by the embodiments of the utility model, the precision dispensing controller includes a control unit, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves, a two-position three-way electromagnetic valve, a vacuum generator, an air inlet and a dispensing outlet. One of the plurality of air pressure sensors monitors the air pressure of the air inlet in real time, which can ensure the stability of the air pressure of the air source and provide continuous air supply for the system. One of the plurality of air pressure sensors monitors the negative pressure of the vacuum generator in real time, which can ensure the normal operation of the vacuum system and provide a stable negative pressure environment for the dispensing process. One of the plurality of air pressure sensors monitors the air pressure of the dispensing outlet in real time, which can ensure the accurate control of the air pressure during the dispensing process and thus ensure the dispensing quality. The control unit then processes and analyzes the various air pressure data transmitted by the plurality of air pressure sensors in real time, and outputs a compensation signal to the plurality of electronic pressure regulating valves. The plurality of electronic pressure regulating valves can adjust the air pressure of the air source flowing through the electronic pressure regulating valve from the air inlet in real time based on the compensation signal output by the control unit, thereby accurately controlling the dispensing amount output by the precision dispensing controller, improving production efficiency and product quality, and solving the problem of inaccurate dispensing amount output by the existing dispensing controller, which affects product quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are illustrated by way of example in the drawings and are described herein in connection with the embodiments described. These embodiments are described in connection with the drawings so that it can be understood, and are not intended to limit the scope of the embodiments to the embodiments described herein, which are intended for illustrative purposes only. The drawings are not intended to be to scale.

[0026] Figure 1 is a structural schematic diagram of a precise dispensing controller provided by the present application;

[0027] Figure 2 is a structural schematic diagram of a dispensing equipment provided by the present application.

[0028] The reference signs are shown in the following table:

[0029] Precise dispensing controller 100 Control unit 10 Electronic pressure regulating valve 30 Air generator 40 Two-position three-way electromagnetic valve 50 Air inlet of air source 60 Dispensing air outlet 70 First air pressure sensor 21 Second air pressure sensor 22 Third air pressure sensor 23 Fourth air pressure sensor 24 First electronic pressure regulating valve 31 Second electronic pressure regulating valve 32 First air storage tank 81 Second air storage tank 82 User interaction module 90 Dispensing device 200 DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described in more detail below in combination with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0032] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0033] In existing glue dispensing controllers, glue dispensing precision is a key factor to ensure product quality. Glue dispensing precision of the glue dispensing controller is affected by various factors, including but not limited to the following points: 1) glue viscosity changes: the viscosity of glue changes due to differences in formula or changes in environmental conditions, affecting the flowability and adhesion of glue dispensing. 2) glue remaining amount in needle cylinder changes: as glue is used, the remaining amount of glue in the needle cylinder decreases, which may cause pressure changes, thereby affecting the consistency of glue dispensing. 3) different air tube lengths: different air tube lengths cause delay in air pressure transmission and pressure loss, affecting the response speed and precision of glue dispensing.

[0034] The influence of the above factors will cause the glue dispensing amount of the glue dispensing controller controlled output to be inaccurate, affecting product quality and production efficiency.

[0035] Therefore, in order to solve the above problems, as shown in Figure 1 The utility model provides a kind of precise glue dispensing controller 100, comprising: control unit 10, several air pressure sensors, several electronic pressure regulating valves 30, vacuum generator 40, two-position three-way electromagnetic valve 50, gas inlet 60 and glue dispensing outlet 70, wherein:

[0036] Several air pressure sensors are connected with control unit 10, vacuum generator 40, gas inlet 60 and glue dispensing outlet 70 respectively, for real-time monitoring and collecting air inlet pressure data of gas inlet 60, air outlet pressure data of glue dispensing outlet 70 and negative pressure data of vacuum generator 40, and transmitting to control unit 10 through high-speed communication interface;

[0037] Control unit 10 is connected with several electronic pressure regulating valves 30, for real-time processing and analyzing various air pressure data transmitted by several air pressure sensors, and outputting compensation signal to several electronic pressure regulating valves 30;

[0038] Several electronic pressure regulating valves 30 are connected with gas inlet 60 and two-position three-way electromagnetic valve 50 respectively, for real-time adjusting air inlet pressure of air source flowing through electronic pressure regulating valve 30 from gas inlet 60 according to compensation signal output by control unit 10, and outputting air inlet pressure of adjusted first air source as positive pressure to two-position three-way electromagnetic valve 50;

[0039] Vacuum generator 40 is connected with one of electronic pressure regulating valves 30, for generating negative pressure based on air inlet pressure of adjusted second air source, and outputting to two-position three-way electromagnetic valve 50;

[0040] Two-position three-way electromagnetic valve 50 is used for switching received positive pressure and negative pressure, and outputting to glue dispensing outlet 70.

[0041] In the embodiment, by providing a precise glue dispensing controller, including a control unit, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves, two-position three-way electromagnetic valves, a vacuum generator, an air inlet and a glue outlet, by monitoring the air inlet pressure of the air inlet in real time in the plurality of air pressure sensors, the air pressure of the air source can be ensured to be stable, and the system can be provided with continuous air source supply; one of the air pressure sensors monitors the negative pressure of the vacuum generator in real time, which can ensure the normal operation of the vacuum system and provide a stable negative pressure environment for the glue dispensing process; one of the air pressure sensors monitors the outlet pressure of the glue outlet in real time, which can ensure the accurate control of the outlet pressure during the glue dispensing process, thereby ensuring the glue dispensing quality. The control unit can process and analyze the various air pressure data transmitted by the plurality of air pressure sensors in real time, and output compensation signals to the plurality of electronic pressure regulating valves, so that the plurality of electronic pressure regulating valves can adjust the inlet pressure of the air source flowing through the electronic pressure regulating valve from the air inlet in real time according to the compensation signals output by the control unit, thereby accurately controlling the glue dispensing amount output by the precise glue dispensing controller, improving the production efficiency and product quality, and solving the problem that the glue dispensing amount output by the existing glue dispensing controller is inaccurate, which affects the product quality and production efficiency.

[0042] In one embodiment, the plurality of air pressure sensors are respectively connected with the control unit 10, the vacuum generator 40, the air inlet 60 and the glue outlet 70, for monitoring and collecting the inlet pressure data of the air inlet 60, the outlet pressure data of the glue outlet 70 and the negative pressure data of the vacuum generator 40 in real time, and transmitting to the control unit 10 through a high-speed communication interface.

[0043] For example, the precise glue dispensing controller 100 includes three air pressure sensors, namely a first air pressure sensor 21, a second air pressure sensor 22 and a third air pressure sensor 23, which are respectively connected with the control unit 10 for monitoring and collecting the inlet pressure data of the air inlet 60, the negative pressure data of the vacuum generator 40 and the outlet pressure data of the glue outlet 70 in real time, and transmitting to the control unit 10 through a high-speed communication interface.

[0044] Specifically, the first air pressure sensor 21 is connected with the control unit 10 and the air inlet 60 respectively, for monitoring and collecting the inlet pressure data of the air inlet 60 in real time, and transmitting to the control unit 10 through a high-speed communication interface. Thus, by monitoring the inlet pressure of the air inlet in real time, the air pressure of the air source can be ensured to be stable, and the system can be provided with continuous air source supply.

[0045] The second air pressure sensor 22 is connected with the control unit 10 and the vacuum generator 40, and is used for monitoring and collecting the negative pressure data of the vacuum generator 40 in real time, and transmitting the data to the control unit 10 through the high-speed communication interface. Thus, by monitoring the negative pressure of the vacuum generator in real time, the normal operation of the vacuum system is ensured, and a stable negative pressure environment is provided for the dispensing process.

[0046] The third air pressure sensor 23 is connected with the control unit 10 and the dispensing air outlet 70, and is used for monitoring and collecting the air pressure data of the dispensing air outlet 70 in real time, and transmitting the data to the control unit 10 through the high-speed communication interface. Thus, by monitoring the air pressure of the dispensing air outlet in real time, the precise control of the air pressure during the dispensing process is ensured, thereby ensuring the dispensing quality.

[0047] For example, the high-speed communication interface is an I2C interface. The I2C (Inter-Integrated Circuit) interface is a simple, bidirectional two-wire synchronous serial bus developed by Philips, which can transmit information between devices connected to the bus by only two wires. The master device is used to start the bus data transmission and generate a clock to open the transmitting device, at which time any addressed device is considered as a slave device. The relationship between the master and slave, and the sender and receiver on the bus is not constant, but depends on the direction of data transmission at that time. If the host wants to send data to the slave device, the host first addresses the slave device, then actively sends data to the slave device, and finally the host terminates the data transmission; if the host wants to receive data from the slave device, the host first addresses the slave device, then the host receives the data sent by the slave device, and finally the host terminates the receiving process. In this case, the host is responsible for generating the timing clock and terminating the data transmission.

[0048] The high-speed communication interface can also be an SPI interface. The SPI (Serial Peripheral Interface) is a high-speed, full-duplex, synchronous communication bus, which works in a master-slave mode, usually including one master device and one or more slave devices.

[0049] In the embodiment, by configuring the high-precision first air pressure sensor, the second air pressure sensor and the third air pressure sensor, the air pressure data of the air inlet, the vacuum generator and the dispensing air outlet and other key positions can be monitored and collected in real time, the flow of glue can be accurately measured and controlled, the viscosity of the glue can be prevented from changing due to changes in environmental conditions, the flowability and adhesion of the glue can be improved, the control ability of the dispensing process is further enhanced, the precise dispensing controller can adapt to complex production environments, and the stability and reliability of product quality are ensured.

[0050] In one embodiment, several electronic pressure regulating valves 30 are respectively connected with the air source inlet 60 and the two-position three-way electromagnetic valve 50, for adjusting the air pressure of the air source flowing through the electronic pressure regulating valve 30 from the air source inlet 60 in real time according to the compensation signal output by the control unit 10, and outputting the adjusted air pressure of the first air source to the two-position three-way electromagnetic valve 50 as the positive pressure.

[0051] For example, the precise dispensing controller 100 includes two electronic pressure regulating valves 30, namely a first electronic pressure regulating valve 31 and a second electronic pressure regulating valve 32, wherein:

[0052] The first electronic pressure regulating valve 31 is respectively connected with the control unit 10 and the air source inlet 60, for adjusting the air pressure of the air source flowing through the first electronic pressure regulating valve 31 from the air source inlet 60 in real time according to the compensation signal output by the control unit 10.

[0053] The second electronic pressure regulating valve 32 is respectively connected with the control unit 10 and the air source inlet 60, for adjusting the air pressure of the air source flowing through the second electronic pressure regulating valve 32 from the air source inlet 60 in real time according to the compensation signal output by the control unit 10.

[0054] Wherein, the control unit 10 outputs corresponding analog voltage as the compensation signal through the internal DAC (Digital-Analog-Converter, Digital-Analog Converter) circuit, for controlling the first electronic pressure regulating valve 31 and / or the second electronic pressure regulating valve 32, to ensure that the air pressure of the air source flowing through the first electronic pressure regulating valve 31 and / or the second electronic pressure regulating valve 32 from the air source inlet 60 meets the precise air pressure required by the process.

[0055] In one embodiment, the precise dispensing controller 100 further includes a first air tank 81 and a second air tank 82, wherein:

[0056] The first air tank 81 is connected with the first electronic pressure regulating valve 31, for stabilizing the air pressure of the first air source output by the first electronic pressure regulating valve 31 and outputting the air pressure as the positive pressure to the two-position three-way electromagnetic valve 50.

[0057] The second air tank 82 is connected with the second electronic pressure regulating valve 32, for stabilizing the air pressure of the second air source output by the second electronic pressure regulating valve 32 and outputting the air pressure to the vacuum generator 40.

[0058] Further, the precision dispensing controller 100 further comprises a fourth air pressure sensor 24 connected with the control unit 10, the first air tank 81 and the second air tank 82 respectively, for monitoring and collecting the air pressure data in the first air tank 81 and the second air tank 82 in real time, and transmitting to the control unit 10 through the high-speed communication interface. Thus, by monitoring the air pressure in the air tank in real time, it is ensured that there is sufficient air pressure reserve in the air tank to meet the air pressure demand in the dispensing process.

[0059] In one embodiment, the vacuum generator 40 is connected with one of the electronic pressure regulating valves 30, for generating negative pressure based on the adjusted air pressure of the second air source, and outputting to the two-position three-way electromagnetic valve 50.

[0060] Specifically, the vacuum generator 40 is connected with the second air tank 82, for generating negative pressure based on the air pressure of the second air source stabilized by the second air tank 82, and outputting to the two-position three-way electromagnetic valve 50.

[0061] In one embodiment, the precision dispensing controller 100 further comprises a user interaction module 90 connected with the control unit 10, for setting dispensing parameters and displaying dispensing status by the user.

[0062] In one embodiment, the control unit 10 is connected with a plurality of electronic pressure regulating valves 30, for real-time processing and analyzing various air pressure data transmitted by a plurality of air pressure sensors, and outputting compensation signals to the plurality of electronic pressure regulating valves 30.

[0063] Specifically, the control unit 10 processes and analyzes the air pressure data of the air source air inlet 60, the negative pressure data of the vacuum generator 40, the air outlet 70, and the air pressure data in the air tank (the first air tank 81 and the second air tank 82) transmitted by the four independent first air pressure sensor 21, the second air pressure sensor 22, the third air pressure sensor 23 and the fourth air pressure sensor 24 in real time, and combines historical air pressure data to predict and compensate for deviations in the dispensing process, and outputs compensation signals to the first electronic pressure regulating valve 31 and the second electronic pressure regulating valve 32 to dynamically adjust the output of the first electronic pressure regulating valve 31 and the second electronic pressure regulating valve 32, automatically adjust dispensing parameters such as air pressure, temperature and dispensing speed, etc. to achieve real-time compensation, to prevent the decrease of the amount of glue in the needle cylinder, which may cause pressure changes and different lengths of air pipes to cause delay and pressure loss in air pressure transmission, ensure accurate and stable air pressure control in the entire dispensing process, ensure dispensing accuracy and consistency under various conditions, improve dispensing response speed and accuracy, and thus improve product quality and production efficiency.

[0064] In addition, the control unit 10 also has a fault diagnosis function, which can detect the state of the first air pressure sensor 21, the second air pressure sensor 22, the third air pressure sensor 23, and the fourth air pressure sensor 24 in real time. Once an abnormality (such as air pressure sensor failure or data overrun) is found, the alarm mechanism will be automatically triggered, and appropriate protective measures (such as pausing the dispensing operation) will be taken to prevent possible product quality problems.

[0065] It can be understood that the control unit 10 is a device or element with signal processing capability. For example, the control unit 10 can be a general-purpose processor, a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.; the general-purpose processor can be a microprocessor, an MCU (Microcontroller Unit) or any conventional processor, etc.

[0066] Based on the same concept, in one embodiment, as shown in Figure 2 The utility model also provides a dispensing equipment 200, including the precise dispensing controller 100 of any one embodiment described above.

[0067] In this embodiment, by providing a dispensing equipment, including a precise dispensing controller, the precise dispensing controller includes a control unit, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves, a two-position three-way electromagnetic valve, a vacuum generator, an air inlet and a dispensing outlet, by in a plurality of air pressure sensors, one of the air pressure sensors monitors the air inlet pressure of the air inlet in real time, which can ensure the stability of the air pressure of the air source and provide continuous air supply for the system;One of the air pressure sensors monitors the negative pressure of the vacuum generator in real time, which can ensure the normal operation of the vacuum system and provide a stable negative pressure environment for the dispensing process;One of the air pressure sensors monitors the outlet pressure of the dispensing outlet in real time, which can ensure the accurate control of the outlet pressure during the dispensing process, thereby ensuring the dispensing quality. Again, the control unit processes and analyzes various air pressure data transmitted by the plurality of air pressure sensors in real time, and outputs a compensation signal to the plurality of electronic pressure regulating valves, so that the plurality of electronic pressure regulating valves can adjust the inlet pressure of the air source flowing through the electronic pressure regulating valve from the air inlet in real time according to the compensation signal output by the control unit, thereby accurately controlling the dispensing amount of the precise dispensing controller, improving production efficiency and product quality, and solving the problem that the dispensing amount of the dispensing controller output by the existing dispensing equipment is inaccurate, which affects product quality and production efficiency.

[0068] In one embodiment, the precise glue dispensing controller 100 comprises a control unit 10, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves 30, a vacuum generator 40, a two-position three-way electromagnetic valve 50, an air source inlet 60, and a glue dispensing outlet 70, wherein:

[0069] The plurality of air pressure sensors are respectively connected to the control unit 10, the vacuum generator 40, the air source inlet 60, and the glue dispensing outlet 70, for real-time monitoring and collecting the air inlet pressure data of the air source inlet 60, the air outlet pressure data of the glue dispensing outlet 70, and the negative pressure data of the vacuum generator 40, and transmitting the data to the control unit 10 through a high-speed communication interface.

[0070] The control unit 10 is connected to the plurality of electronic pressure regulating valves 30, for real-time processing and analyzing the various air pressure data transmitted by the plurality of air pressure sensors, and outputting compensation signals to the plurality of electronic pressure regulating valves 30.

[0071] The plurality of electronic pressure regulating valves 30 are respectively connected to the air source inlet 60 and the two-position three-way electromagnetic valve 50, for real-time adjusting the air inlet pressure of the air source flowing through the electronic pressure regulating valve 30 from the air source inlet 60 according to the compensation signals output by the control unit 10, and outputting the adjusted air inlet pressure of the first air source as positive pressure to the two-position three-way electromagnetic valve 50.

[0072] The vacuum generator 40 is connected to one of the electronic pressure regulating valves 30, for generating negative pressure based on the adjusted air inlet pressure of the second air source and outputting to the two-position three-way electromagnetic valve 50.

[0073] The two-position three-way electromagnetic valve 50 is used for switching the received positive pressure and negative pressure, and outputting to the glue dispensing outlet 70.

[0074] In one embodiment, the plurality of air pressure sensors are respectively connected to the control unit 10, the vacuum generator 40, the air source inlet 60, and the glue dispensing outlet 70, for real-time monitoring and collecting the air inlet pressure data of the air source inlet 60, the air outlet pressure data of the glue dispensing outlet 70, and the negative pressure data of the vacuum generator 40, and transmitting the data to the control unit 10 through a high-speed communication interface.

[0075] For example, the precise glue dispensing controller 100 comprises three air pressure sensors, namely a first air pressure sensor 21, a second air pressure sensor 22, and a third air pressure sensor 23, which are respectively connected to the control unit 10, for real-time monitoring and collecting the air inlet pressure data of the air source inlet 60, the negative pressure data of the vacuum generator 40, and the air outlet pressure data of the glue dispensing outlet 70, and transmitting the data to the control unit 10 through a high-speed communication interface.

[0076] Specifically, the first air pressure sensor 21 is connected with the control unit 10 and the air inlet 60, respectively, for real-time monitoring and collecting the air pressure data of the air inlet 60 and transmitting the data to the control unit 10 through the high-speed communication interface. Thus, by real-time monitoring of the air pressure of the air inlet, the stability of the air pressure of the air source is ensured, and continuous air supply is provided for the system.

[0077] The second air pressure sensor 22 is connected with the control unit 10 and the vacuum generator 40, for real-time monitoring and collecting the negative pressure data of the vacuum generator 40 and transmitting the data to the control unit 10 through the high-speed communication interface. Thus, by real-time monitoring of the negative pressure of the vacuum generator, the normal operation of the vacuum system is ensured, and a stable negative pressure environment is provided for the dispensing process.

[0078] The third air pressure sensor 23 is connected with the control unit 10 and the dispensing outlet 70, for real-time monitoring and collecting the air pressure data of the dispensing outlet 70 and transmitting the data to the control unit 10 through the high-speed communication interface. Thus, by real-time monitoring of the air pressure of the dispensing outlet, the precise control of the air pressure during the dispensing process is ensured, thereby ensuring the dispensing quality.

[0079] For example, the high-speed communication interface is an I2C interface, and can also be an SPI interface.

[0080] In the embodiment, by configuring high-precision first, second, and third air pressure sensors, the air pressure data of key positions such as the air inlet, the vacuum generator, and the dispensing outlet can be monitored and collected in real time, the flow of glue can be accurately measured and controlled, the viscosity of the glue can be prevented from changing due to changes in environmental conditions, the flowability and adhesion of the glue can be improved, the control capability of the dispensing process is further enhanced, the precision dispensing controller can adapt to complex production environments, and the stability and reliability of product quality are ensured.

[0081] In one embodiment, several electronic pressure regulating valves 30 are connected with the air inlet 60 and the two-position three-way electromagnetic valve 50, respectively, for real-time adjustment of the air pressure of the air source flowing through the electronic pressure regulating valve 30 from the air inlet 60 according to the compensation signal output by the control unit 10, and outputting the adjusted air pressure of the first air source as the positive pressure to the two-position three-way electromagnetic valve 50.

[0082] For example, the precision dispensing controller 100 includes two electronic pressure regulating valves 30, which are a first electronic pressure regulating valve 31 and a second electronic pressure regulating valve 32.

[0083] The first electronic pressure regulating valve 31 is connected with the control unit 10 and the air inlet 60 respectively, and is used to adjust the air pressure of the air source flowing through the first electronic pressure regulating valve 31 from the air inlet 60 in real time according to the compensation signal output by the control unit 10.

[0084] The second electronic pressure regulating valve 32 is connected with the control unit 10 and the air inlet 60 respectively, and is used to adjust the air pressure of the air source flowing through the second electronic pressure regulating valve 32 from the air inlet 60 in real time according to the compensation signal output by the control unit 10.

[0085] The control unit 10 outputs corresponding analog voltage as the compensation signal through the DAC circuit inside the control unit 10, which is used to control the first electronic pressure regulating valve 31 and / or the second electronic pressure regulating valve 32, so as to ensure that the air pressure of the air source flowing through the first electronic pressure regulating valve 31 and / or the second electronic pressure regulating valve 32 from the air inlet 60 meets the precise air pressure required by the process.

[0086] In an embodiment, the precise dispensing controller 100 further comprises a first air tank 81 and a second air tank 82, wherein:

[0087] The first air tank 81 is connected with the first electronic pressure regulating valve 31, and is used to stabilize the air pressure of the first air source output by the first electronic pressure regulating valve 31 and output the positive pressure to the two-position three-way electromagnetic valve 50.

[0088] The second air tank 82 is connected with the second electronic pressure regulating valve 32, and is used to stabilize the air pressure of the second air source output by the second electronic pressure regulating valve 32 and output the air pressure to the vacuum generator 40.

[0089] Further, the precise dispensing controller 100 further comprises a fourth air pressure sensor 24 connected with the control unit 10, the first air tank 81 and the second air tank 82 respectively, which is used to monitor and collect the air pressure data in the first air tank 81 and the second air tank 82 in real time, and transmit the air pressure data to the control unit 10 through the high-speed communication interface. Thus, the air pressure in the air tank is monitored in real time to ensure that there is sufficient air pressure reserve in the air tank to meet the air pressure demand in the dispensing process.

[0090] In an embodiment, the vacuum generator 40 is connected with one of the electronic pressure regulating valves 30, and is used to generate negative pressure based on the adjusted air pressure of the second air source and output the negative pressure to the two-position three-way electromagnetic valve 50.

[0091] Specifically, the vacuum generator 40 is connected with the second air tank 82, and is used to generate negative pressure based on the air pressure of the second air source stabilized by the second air tank 82 and output the negative pressure to the two-position three-way electromagnetic valve 50.

[0092] In one embodiment, the precision dispensing controller 100 further comprises a user interaction module 90 connected with the control unit 10 for user to set dispensing parameters and display dispensing status.

[0093] In one embodiment, the control unit 10 is connected with the electronic pressure regulating valves 30 for real-time processing and analysis of various air pressure data transmitted by the air pressure sensors, and outputting compensation signals to the electronic pressure regulating valves 30.

[0094] Specifically, the control unit 10 processes and analyzes the air inlet pressure data of the air source inlet 60, the negative pressure data of the vacuum generator 40, the air outlet pressure data of the dispensing air outlet 70 and the air pressure data in the air tanks (the first air tank 81 and the second air tank 82) transmitted by the four independent first air pressure sensor 21, second air pressure sensor 22, third air pressure sensor 23 and fourth air pressure sensor 24 in real time, and combines historical air pressure data to predict and compensate for deviations in the dispensing process, and outputs compensation signals to the first electronic pressure regulating valve 31 and the second electronic pressure regulating valve 32 to dynamically adjust the output of the first electronic pressure regulating valve 31 and the second electronic pressure regulating valve 32, automatically adjust dispensing parameters such as air pressure, temperature and dispensing speed, etc. to achieve real-time compensation, to prevent the change of pressure caused by the decrease of the amount of glue in the needle cylinder and the difference in air pipe length from causing delay and pressure loss in air pressure transmission, ensure accurate and stable air pressure control throughout the dispensing process, ensure that dispensing accuracy and consistency can be maintained under various conditions, improve dispensing response speed and accuracy, and thus improve product quality and production efficiency.

[0095] In addition, the control unit 10 also has fault diagnosis function, which can detect the state of the first air pressure sensor 21, the second air pressure sensor 22, the third air pressure sensor 23 and the fourth air pressure sensor 24 in real time, and once an abnormality (such as air pressure sensor failure or data out of limit) is found, the alarm mechanism will be automatically triggered, and corresponding protection measures (such as suspending dispensing operation) will be taken to prevent possible product quality problems.

[0096] It should be noted that the above-mentioned dispensing equipment embodiment and the precision dispensing controller embodiment belong to the same concept, and the specific implementation process is described in the precision dispensing controller embodiment, and the technical features in the precision dispensing controller embodiment are applicable in the dispensing equipment embodiment, which will not be repeated here.

[0097] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be simple, they are not provided in details; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced 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.

Claims

1. A precision dispensing controller, characterized by, The precision dispensing controller comprises a control unit, a plurality of air pressure sensors, a plurality of electronic pressure regulating valves, a two-position three-way electromagnetic valve, a vacuum generator, an air source inlet and a dispensing outlet. A plurality of air pressure sensors are respectively connected with the control unit, the vacuum generator, the air source inlet and the dispensing outlet, for real-time monitoring and collecting the air inlet pressure data of the air source inlet, the air outlet pressure data of the dispensing outlet and the negative pressure data of the vacuum generator, and transmitting the data to the control unit through a high-speed communication interface. The control unit is connected with a plurality of electronic pressure regulating valves, for real-time processing and analyzing various air pressure data transmitted by a plurality of air pressure sensors, and outputting compensation signals to a plurality of electronic pressure regulating valves. A plurality of electronic pressure regulating valves are respectively connected with the air source inlet and the two-position three-way electromagnetic valve, for adjusting the air inlet pressure of the air source flowing through the electronic pressure regulating valve from the air source inlet in real time according to the compensation signal output by the control unit, and outputting the adjusted air inlet pressure of the first air source as positive pressure to the two-position three-way electromagnetic valve. The vacuum generator is connected with one of the electronic pressure regulating valves, for generating negative pressure based on the adjusted air inlet pressure of the second air source and outputting to the two-position three-way electromagnetic valve. The two-position three-way electromagnetic valve is used for switching the received positive pressure and negative pressure, and outputting to the dispensing outlet.

2. The precision dispensing controller of claim 1, wherein, The precision dispensing controller comprises a first air pressure sensor, a second air pressure sensor and a third air pressure sensor. The first air pressure sensor is connected with the control unit and the air source inlet, for real-time monitoring and collecting the air inlet pressure data of the air source inlet, and transmitting the data to the control unit through a high-speed communication interface. The second air pressure sensor is connected with the control unit and the vacuum generator, for real-time monitoring and collecting the negative pressure data of the vacuum generator, and transmitting the data to the control unit through a high-speed communication interface. The third air pressure sensor is connected with the control unit and the dispensing outlet, for real-time monitoring and collecting the air outlet pressure data of the dispensing outlet, and transmitting the data to the control unit through a high-speed communication interface.

3. A precision dispensing controller according to claim 2, wherein, The precision dispensing controller comprises a first electronic pressure regulating valve and a second electronic pressure regulating valve. The first electronic pressure regulating valve is connected with the control unit and the air source inlet, for adjusting the air inlet pressure of the air source flowing through the first electronic pressure regulating valve from the air source inlet in real time according to the compensation signal output by the control unit. The second electronic pressure regulating valve is connected with the control unit and the air source inlet, for adjusting the air inlet pressure of the air source flowing through the second electronic pressure regulating valve from the air source inlet in real time according to the compensation signal output by the control unit.

4. A precision dispensing controller according to claim 3, wherein, The precision dispensing controller further comprises a first air tank connected with the first electronic pressure regulating valve, for stabilizing the air inlet pressure of the first air source output by the first electronic pressure regulating valve and outputting as positive pressure to the two-position three-way electromagnetic valve.

5. A precision dispensing controller according to claim 4, wherein, The precision glue dispensing controller further comprises a second air tank connected with the second electronic pressure regulating valve, for stabilizing the air pressure output of the second air source output by the second electronic pressure regulating valve to the vacuum generator.

6. A precision dispensing controller according to claim 5, wherein, The precision glue dispensing controller further comprises a fourth air pressure sensor connected with the control unit, the first air tank and the second air tank respectively, for monitoring and collecting the air pressure data in the first air tank and the second air tank in real time, and transmitting the air pressure data to the control unit through a high-speed communication interface.

7. A precision dispensing controller according to claim 6, wherein, The high-speed communication interface is an I2C interface or an SPI interface.

8. The precision dispensing controller of claim 5, wherein, The vacuum generator is connected with the second air tank, for generating negative pressure from the air pressure of the second air source stabilized by the second air tank, and outputting the negative pressure to the two-position three-way electromagnetic valve.

9. The precision dispensing controller of claim 1, wherein, The precision glue dispensing controller further comprises a user interaction module connected with the control unit, for setting glue dispensing parameters and displaying glue dispensing states by the user.

10. A dispensing apparatus, comprising: The precision glue dispensing controller comprises any one of claims 1 to 9. The precision glue dispensing controller comprises any one of claims 1 to 9.

Images