CN106142846A - A kind of ceramic ink jet printer ink cyclic control system of Kernel-based methods controller - Google Patents
A kind of ceramic ink jet printer ink cyclic control system of Kernel-based methods controller Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 22
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Abstract
本发明公开了一种基于过程控制器的陶瓷喷墨打印机墨路循环控制系统。其包括供墨组件和控制组件。供墨组件包括墨桶、主墨盒和副墨盒。墨桶上设有搅拌电机和供墨泵并通过供墨通道与副墨盒连接，主墨盒和副墨盒之间通过循环泵连接及主墨盒和副墨盒分别与喷墨头连接。控制组件主要由工控机、逻辑控制单元、操作显示单元、过程控制器、压力传感器、超声波液位传感器、温度控制器、预热组件、加热组件和负压控制组件组成。本发明能对具有多重耦合关系的正压、负压、喷墨头流速、喷墨头弯月面压力和墨水温度等进行精确控制，保证了喷墨头参数的稳定，提高了墨路系统的稳定性和打印质量。
The invention discloses an ink circuit circulation control system of a ceramic ink jet printer based on a process controller. It includes ink supply components and control components. The ink supply assembly includes ink barrels, main ink tanks and sub ink tanks. The ink barrel is provided with a stirring motor and an ink supply pump, and is connected to the sub-ink box through an ink supply channel. The main ink box and the sub-ink box are connected through a circulation pump, and the main ink box and the sub-ink box are respectively connected to the inkjet head. The control component is mainly composed of industrial computer, logic control unit, operation display unit, process controller, pressure sensor, ultrasonic liquid level sensor, temperature controller, preheating component, heating component and negative pressure control component. The invention can precisely control the positive pressure, negative pressure, flow velocity of the inkjet head, meniscus pressure of the inkjet head and ink temperature with multiple coupling relationships, so as to ensure the stability of the parameters of the inkjet head and improve the efficiency of the ink path system. stability and print quality.
Description
技术领域technical field
本发明涉及一种陶瓷喷墨打印机墨路循环控制系统，具体涉及一种基于过程控制器的陶瓷喷墨打印机墨路循环控制系统。The invention relates to an ink path circulation control system of a ceramic inkjet printer, in particular to an ink path circulation control system of a ceramic inkjet printer based on a process controller.
背景技术Background technique
陶瓷喷墨打印机自2000年出现以来，由于其具有独有的优势，在国内外众多陶瓷厂家得到了广泛的应用，发展非常迅速。陶瓷喷墨打印机的图案打印质量与其墨路循环控制系统的关系是非常密切的，如果墨路循环控制不稳定，轻则会造成挂线、滴墨、不打印、打印色彩不完美等缺陷，重则会造成喷墨头堵塞等问题，因此，陶瓷喷墨打印机的墨路循环控制至关重要。Since the ceramic inkjet printer appeared in 2000, due to its unique advantages, it has been widely used in many ceramic manufacturers at home and abroad, and has developed very rapidly. The pattern printing quality of a ceramic inkjet printer is closely related to its ink circulation control system. If the ink circulation control is unstable, it may cause defects such as hanging lines, dripping ink, non-printing, and imperfect printing colors. It will cause problems such as inkjet head clogging. Therefore, the ink circulation control of ceramic inkjet printers is very important.
目前，陶瓷喷墨打印机的墨路循环控制技术主要使用循环泵高低速控制、正压控制、负压控制等控制技术。但是，这些控制技术在实际应用过程中会出现循环泵经常性偷停、墨水倒吸、墨水溢出、负压不稳定、整个油墨通道滴墨、喷墨头经常性不打印或者某个区间不打印、喷墨头交接位置经常出现黑白线等技术问题。At present, the ink circulation control technology of ceramic inkjet printers mainly uses control technologies such as high and low speed control of circulating pumps, positive pressure control, and negative pressure control. However, in the actual application process of these control technologies, the circulation pump frequently stops, ink sucks back, ink overflows, negative pressure is unstable, the entire ink channel drops ink, the inkjet head often does not print or does not print in a certain area 1. Technical problems such as black and white lines often appear at the handover position of the inkjet head.
发明内容Contents of the invention
本发明的目的在于提供一种基于过程控制器的陶瓷喷墨打印机墨路循环控制系统，以解决现有技术的不足之处。The object of the present invention is to provide a process controller-based ceramic inkjet printer ink circuit circulation control system to solve the shortcomings of the prior art.
为达到上述目的，本发明采用如下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种基于过程控制器的陶瓷喷墨打印机墨路循环控制系统，包括：供墨组件，通过油墨通道与陶瓷喷墨打印机之喷墨头连接，所述供墨组件包括墨桶、主墨盒和副墨盒，所述墨桶上设有供墨泵和搅拌电机，所述主墨盒和副墨盒之间通过一循环泵连接及所述主墨盒和副墨盒分别与喷墨头连接；控制组件，用以控制供墨组件和喷墨头动作；所述墨桶通过油墨通道与所述副墨盒连接；所述控制组件包括：一台工控机，所述喷墨头通过喷墨头驱动组件与所述工控机连接；一个逻辑控制单元，与所述工控机连接；一个操作显示单元，与所述逻辑控制单元连接；一个过程控制器，分别与所述逻辑控制单元、供墨泵和循环泵连接；一个温度控制器，与所述逻辑控制单元连接；一个负压控制组件，设置在所述副墨盒的空气通道中并与所述逻辑控制单元连接；一个压力传感器，对应所述主墨盒设置并与所述过程控制器连接；一个超声波液位传感器，对应所述副墨盒设置并与所述过程控制器连接；一个预热组件，设置在墨桶和副墨盒之间的油墨通道上并与所述温度控制器连接；和一个加热组件，与所述温度控制器连接，用以加热主墨盒和副墨盒。A process controller-based ink circulation control system for a ceramic inkjet printer, comprising: an ink supply assembly connected to the inkjet head of the ceramic inkjet printer through an ink channel, the ink supply assembly includes an ink barrel, a main ink tank and a secondary An ink cartridge, the ink barrel is provided with an ink supply pump and a stirring motor, the main ink box and the sub-ink box are connected through a circulation pump and the main ink box and the sub-ink box are respectively connected to the inkjet head; the control assembly is used to Control the action of the ink supply assembly and the inkjet head; the ink barrel is connected to the sub-ink box through the ink channel; the control assembly includes: an industrial computer, and the inkjet head is connected to the industrial computer through the inkjet head driving assembly machine connection; a logic control unit, connected with the industrial computer; an operation display unit, connected with the logic control unit; a process controller, respectively connected with the logic control unit, ink supply pump and circulation pump; a a temperature controller, connected with the logic control unit; a negative pressure control assembly, arranged in the air channel of the sub-ink and connected with the logic control unit; a pressure sensor, set corresponding to the main ink box and connected with the logic control unit connected to the process controller; an ultrasonic liquid level sensor, set corresponding to the sub-ink box and connected to the process controller; a preheating component, set on the ink channel between the ink barrel and the sub-ink box and connected to the temperature The controller is connected; and a heating component is connected with the temperature controller to heat the main ink tank and the auxiliary ink tank.
作为优选，所述的预热组件由预热器、第一温度传感器和第一固态继电器组成。Preferably, the preheating assembly is composed of a preheater, a first temperature sensor and a first solid state relay.
作为优选，所述加热组件由加热器、第二温度传感器和第二固态继电器组成。Preferably, the heating assembly is composed of a heater, a second temperature sensor and a second solid state relay.
作为优选，所述过程控制器和温度控制器均通过RS485接口与所述逻辑控制单元连接。Preferably, both the process controller and the temperature controller are connected to the logic control unit through an RS485 interface.
作为优选，所述副墨盒与负压控制组件之间的空气通道中设置一个液位开关，所述液位开关与所述逻辑控制单元连接。Preferably, a liquid level switch is arranged in the air channel between the secondary ink tank and the negative pressure control assembly, and the liquid level switch is connected with the logic control unit.
作为优选，所述墨桶上设有第一液位传感器，在所述副墨盒上设有第二液位传感器。Preferably, the ink barrel is provided with a first liquid level sensor, and the secondary ink tank is provided with a second liquid level sensor.
作为优选，所述主墨盒设有一根与大气连接的管道，所述管道上安装有电磁阀，所述电磁阀与所述逻辑控制单元连接。Preferably, the main ink tank is provided with a pipeline connected to the atmosphere, and a solenoid valve is installed on the pipeline, and the solenoid valve is connected with the logic control unit.
作为优选，所述喷墨头驱动组件主要由喷头驱动卡、主板卡和交换机组成。Preferably, the inkjet head drive assembly is mainly composed of a printhead drive card, a mainboard card and a switch.
本发明通过采用上述结构，能对具有多重耦合关系的正压、负压、喷墨头流速、喷墨头弯月面压力和墨水温度等进行精确控制，保证了喷墨头参数的稳定，提高了墨路系统的稳定性和打印质量。而且，本发明有效降低了调试周期，提高了工作效率，并对负压控制组件加强了保护。还有，本发明有效提高了对各种墨水的适应能力。By adopting the above-mentioned structure, the present invention can precisely control the positive pressure, negative pressure, flow velocity of the inkjet head, meniscus pressure of the inkjet head, and ink temperature with multiple coupling relationships, ensuring the stability of the parameters of the inkjet head and improving the This ensures the stability and print quality of the ink system. Moreover, the invention effectively reduces the debugging period, improves the work efficiency, and strengthens the protection of the negative pressure control components. Also, the invention effectively improves the adaptability to various inks.
附图说明Description of drawings
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图中：In the picture:
1—喷墨头；11—喷头驱动卡；12—主板卡；13—交换机；21—墨桶；22—主墨盒；23—副墨盒；24—搅拌电机；25—供墨泵；26—循环泵；27—电磁阀；3—工控机；31—显示屏；32—键盘/鼠标；4—逻辑控制单元；41—操作显示单元；5—过程控制器；51—压力传感器；52—超声波液位传感器；6—温度传感器；61—预热器；62—加热器；63—第一温度传感器；64—第二温度传感器；65—第一固态继电器；66—第二固态继电器；71—负压控制器；72—负压泵；73—液位开关；81—第一液位传感器；82—第二液位传感器。1—inkjet head; 11—head drive card; 12—mainboard card; 13—switch; 21—ink barrel; 22—main ink cartridge; 23—secondary ink cartridge; 24—stirring motor; 25—ink supply pump; 26—circulation Pump; 27—solenoid valve; 3—industrial computer; 31—display screen; 32—keyboard/mouse; 4—logic control unit; 41—operation display unit; 5—process controller; 51—pressure sensor; 52—ultrasonic fluid Bit sensor; 6—temperature sensor; 61—preheater; 62—heater; 63—first temperature sensor; 64—second temperature sensor; 65—first solid state relay; 66—second solid state relay; 71—negative Pressure controller; 72—negative pressure pump; 73—liquid level switch; 81—first liquid level sensor; 82—second liquid level sensor.
现结合附图和实施例对本发明作进一步详细说明。The present invention will now be described in further detail in conjunction with the accompanying drawings and embodiments.
具体实施方式detailed description
如图1所示，本发明所述的一种基于过程控制器的陶瓷喷墨打印机墨路循环控制系统，主要由通过油墨通道与喷墨头1连接的供墨组件和用以控制供墨组件和喷墨头动作的控制组件组成。As shown in Figure 1, a ceramic inkjet printer ink circuit circulation control system based on a process controller according to the present invention is mainly composed of an ink supply assembly connected to the inkjet head 1 through an ink channel and used to control the ink supply assembly It is composed of the control components for the action of the inkjet head.
所述的供墨组件包括墨桶21、主墨盒22和副墨盒23。墨桶21上设有搅拌电机24和供墨泵25，并通过供墨通道与副墨盒23连接。主墨盒22和副墨盒23之间通过循环泵26连接及主墨盒22和副墨盒23分别与喷墨头1连接。The ink supply assembly includes an ink tank 21 , a main ink tank 22 and a secondary ink tank 23 . The ink barrel 21 is provided with a stirring motor 24 and an ink supply pump 25, and is connected with the sub-ink box 23 through an ink supply channel. The main ink box 22 and the auxiliary ink box 23 are connected through a circulation pump 26 and the main ink box 22 and the auxiliary ink box 23 are respectively connected with the inkjet head 1 .
所述的控制组件主要由一个工控机3、一个逻辑控制单元(PLC)4、一个操作显示单元41、一个过程控制器5、一个压力传感器51、一个超声波液位传感器52、一个温度控制器6、一个预热组件、一个加热组件和一个负压控制组件组成。喷墨头1通过喷墨头驱动组件与工控机3连接，该喷墨头驱动组件主要由喷头驱动卡11、主板卡12和交换机组成；此外，工控机3还设有显示屏31和键盘/鼠标32。逻辑控制单元(PLC)4与工控机3连接。操作显示单元41为一触摸屏，并包括有操作单元、正压显示单元、负压显示单元、温度显示单元、液位报警显示单元等，操作单元连接逻辑控制单元(PLC)4进行指令发送和数据读取。过程控制器5和温度控制器6分别通过RS485接口与逻辑控制单元进行数据和指令传输。压力传感器51设置在主墨盒22上并接入过程控制器5。超声波液位传感器52设置在副墨盒23上并接入过程控制器5。预热组件由预热器61、第一温度传感器63和第一固态继电器65组成，预热器61和第一温度传感器63分别设置在墨桶和副墨盒之间的供墨通道中；预热器61与第一固态继电器65连接；第一温度传感器和第一固态继电器分别接入温度控制器。加热组件由加热器62、第二温度传感器64和第二固态继电器65组成，加热器63用以加热主墨盒和副墨盒并与第二固态继电器连接；第二温度传感器设置在主墨盒上并接入温度控制器；第二固态继电器接入温度传感器。负压控制组件主要由均分别与逻辑控制单元(PLC)4连接的负压控制器71、负压泵72和液位开关73组成，液位开关设置在副墨盒与负压控制组件之间的空气通道中。The control assembly is mainly composed of an industrial computer 3, a logic control unit (PLC) 4, an operation display unit 41, a process controller 5, a pressure sensor 51, an ultrasonic liquid level sensor 52, and a temperature controller 6 , a preheating component, a heating component and a negative pressure control component. The inkjet head 1 is connected with the industrial computer 3 through the inkjet head driving assembly, which is mainly composed of the inkjet head driving card 11, the motherboard card 12 and the switch; in addition, the industrial computer 3 is also provided with a display screen 31 and a keyboard/ mouse32. The logic control unit (PLC) 4 is connected with the industrial computer 3 . The operation display unit 41 is a touch screen, and includes an operation unit, a positive pressure display unit, a negative pressure display unit, a temperature display unit, a liquid level alarm display unit, etc., and the operation unit is connected to a logic control unit (PLC) 4 for command transmission and data read. The process controller 5 and the temperature controller 6 respectively transmit data and instructions to the logic control unit through the RS485 interface. The pressure sensor 51 is arranged on the main ink tank 22 and connected to the process controller 5 . The ultrasonic liquid level sensor 52 is arranged on the secondary ink tank 23 and connected to the process controller 5 . The preheating assembly is made up of preheater 61, first temperature sensor 63 and first solid state relay 65, and preheater 61 and first temperature sensor 63 are respectively arranged in the ink supply channel between ink barrel and secondary ink box; preheating The device 61 is connected to the first solid state relay 65; the first temperature sensor and the first solid state relay are respectively connected to the temperature controller. The heating assembly is made up of a heater 62, a second temperature sensor 64 and a second solid state relay 65. The heater 63 is used to heat the main ink tank and the auxiliary ink tank and is connected with the second solid state relay; the second temperature sensor is arranged on the main ink tank and connected to the second solid state relay. into the temperature controller; the second solid state relay into the temperature sensor. The negative pressure control assembly is mainly composed of a negative pressure controller 71, a negative pressure pump 72, and a liquid level switch 73 that are respectively connected to the logic control unit (PLC) 4. The liquid level switch is arranged between the secondary ink cartridge and the negative pressure control assembly. in the air channel.
本发明的过程控制器和温度控制器均可以进行参数自整定，仅需输入设定值，操作简便。Both the process controller and the temperature controller of the present invention can perform parameter self-tuning, only need to input the set value, and the operation is simple and convenient.
本发明在工作过程中，由过程控制器、压力传感器和循环泵组成闭环控制能实现主墨盒压力的精确控制。由过程控制器、超声波液位传感器和供墨泵组成闭环控制能实现副墨盒液位的精确控制，消除供墨过程中的负压波动。温度控制器、第一温度传感器、预热器和第一固态继电器组成闭环控制，使在预热阶段把墨水加热到所要求的温度，降低供墨过程中墨盒对墨水温度的冲击。温度控制器、第二温度传感器、加热器和第二固态继电器组成闭环控制，能及时补充墨盒中墨水在工作过程中的能量耗散，保证墨盒中墨水的温度稳定。In the working process of the present invention, the closed-loop control composed of a process controller, a pressure sensor and a circulation pump can realize precise control of the pressure of the main ink tank. The closed-loop control composed of process controller, ultrasonic liquid level sensor and ink supply pump can realize the precise control of the liquid level of the auxiliary ink tank and eliminate the negative pressure fluctuation during the ink supply process. The temperature controller, the first temperature sensor, the preheater and the first solid state relay form a closed-loop control, so that the ink is heated to the required temperature in the preheating stage, and the impact of the ink cartridge on the ink temperature during the ink supply process is reduced. The temperature controller, the second temperature sensor, the heater and the second solid-state relay form a closed-loop control, which can replenish the energy dissipation of the ink in the ink cartridge in the working process in time to ensure the temperature stability of the ink in the ink cartridge.
此外，当发生墨水倒吸的情况时，液位开关输出信号至逻辑控制单元，逻辑控制单元即关停负压控制器，保证了负压控制器和负压泵的使用安全，并能防止墨水飞溅。In addition, when the ink is sucked back, the liquid level switch outputs a signal to the logic control unit, and the logic control unit shuts down the negative pressure controller, which ensures the safe use of the negative pressure controller and the negative pressure pump, and prevents ink splash.
另外，在墨桶上安装第一液位传感器81，能有效监控墨桶的墨水使用情况。在副墨盒上安装第二液位传感器82，当供墨泵失速的情况下能对系统进行保护。In addition, installing the first liquid level sensor 81 on the ink barrel can effectively monitor the ink usage of the ink barrel. The second liquid level sensor 82 is installed on the auxiliary ink tank, and the system can be protected when the ink supply pump stalls.
还有，在主墨盒22设置一根与大气连接的管道，并在该管道上安装电磁阀27，该电磁阀与逻辑控制单元4连接。当供墨系统处于压力建立过程中，电磁阀用于排气；当供墨系统压力稳定后，电磁阀则封闭管道，以防止循环泵失速时出现的墨水飞溅现象发生。In addition, a pipeline connected to the atmosphere is arranged on the main ink tank 22, and a solenoid valve 27 is installed on the pipeline, and the solenoid valve is connected with the logic control unit 4. When the ink supply system is in the process of pressure build-up, the solenoid valve is used for exhaust; when the pressure of the ink supply system is stable, the solenoid valve closes the pipeline to prevent ink splashing when the circulation pump stalls.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Address after: 528313, No. 1, West Road, Guang Long Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan Patentee after: Keda Manufacturing Co.,Ltd. Address before: 528313, No. 1, West Road, Guang Long Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan Patentee before: KEDA CLEAN ENERGY Co.,Ltd. |
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