阅读说明：本技术 一种改进型喷头控制系统 (Improved generation shower nozzle control system ) 是由 魏江峰 陈涛 郭婷婷 孙立卷 段昊昱 于 2021-07-26 设计创作，主要内容包括：本发明涉及一种改进型喷头控制系统,包括主控制板、光栅读头、喷头控制板和喷头；所述主控制板与喷头控制板相连接,该喷头控制板的输出端与喷头相连接,由主控制板发送速度脉冲和方向开关信号至喷头的闭环的伺服驱动器,完成喷头在X方向的运动控制。本发明能够减小喷头板面积和重量,提高喷头控制板可靠性。(The invention relates to an improved spray head control system, which comprises a main control panel, a grating reading head, a spray head control panel and a spray head, wherein the main control panel is connected with the grating reading head; the main control board is connected with the spray head control board, the output end of the spray head control board is connected with the spray head, and the main control board sends speed pulses and direction switch signals to a closed-loop servo driver of the spray head to complete the motion control of the spray head in the X direction. The invention can reduce the area and weight of the nozzle plate and improve the reliability of the nozzle control plate.)

1. An improved generation shower nozzle control system which characterized in that: comprises a main control panel, a grating reading head, a spray head control panel and a spray head; the main control board is connected with the spray head control board, the output end of the spray head control board is connected with the spray head, and the main control board sends speed pulses and direction switch signals to a closed-loop servo driver of the spray head to complete the motion control of the spray head in the X direction.

2. An improved spray head control system as claimed in claim 1, wherein: the sprayer control panel comprises an FPGA data processing module, the input end of the FPGA data processing module is respectively connected with the main control panel and the grating reading head, and the output end of the FPGA data processing module is connected with the sprayer and used for communication of the main control panel, grating data reading, printing of the sprayer and voltage data sending.

3. An improved spray head control system as claimed in claim 1, wherein: the main control panel is connected with the spray head control panel through optical fibers, and serial data are sent to the FPGA data processing module.

4. An improved spray head control system as claimed in claim 1, wherein: the FPGA data processing module comprises a processor and an internal memory and is used for storing multi-line printing data and voltage data which are checked to be correct and sending printing area data according to the position of the spray head.

5. An improved spray head control system as claimed in claim 4, wherein: and the processor of the FPGA data processing module is used for reading grating pulses of the ink-jet printer, analyzing the position of the spray head and sending a spray head ignition control command to the spray head.

6. An improved spray head control system as claimed in claim 1, wherein: the shower nozzle control panel still includes AD conversion module and power amplification module, FPGA data processing module's output loops through AD conversion module and power amplification module and is connected with the shower nozzle for according to shower nozzle driving voltage waveform data, through high-speed AD conversion, power amplification loading to the required voltage waveform of shower nozzle and power demand.

7. An improved spray head control system as claimed in claim 1, wherein: the sprayer control panel also comprises a storage module, the FPGA data processing module is connected with the storage module, and data which are checked to be correct can be transmitted in a two-way mode.

Technical Field

The invention belongs to the technical field of ink-jet printing, and particularly relates to an improved spray head control system.

Background

At present, an ink-jet printer with a reciprocating motion nozzle is a common printing device in China, a nozzle control plate is a joint circuit board from a main control plate of the ink-jet printer to the nozzle, each nozzle needs an own interface circuit, one end of the nozzle control plate is connected with the nozzle, and the other end of the nozzle control plate is connected with the main control plate. The nozzle control board can control the movement of the nozzle in the X direction, receive serial printing data and nozzle driving voltage waveform data sent by the main control board and raster position information, and provide printing data, control signals and power driving signals for the nozzle through processing and power amplification.

However, the function of the nozzle control plate is too complex, the area of the nozzle plate is too large, and the nozzle plate is too heavy, so that unreliability is increased, and therefore how to reduce the area and weight of the nozzle plate and improve the reliability of the nozzle control plate is a technical problem that those skilled in the art are eagerly to solve.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an improved spray head control system which can reduce the area and weight of a spray head plate and improve the reliability of a spray head control plate.

The invention solves the practical problem by adopting the following technical scheme:

an improved spray head control system comprises a main control panel, a grating reading head, a spray head control panel and a spray head; the main control board is connected with the spray head control board, the output end of the spray head control board is connected with the spray head, and the main control board sends speed pulses and direction switch signals to a closed-loop servo driver of the spray head to complete the motion control of the spray head in the X direction.

And the sprayer control panel comprises an FPGA data processing module, the input end of the FPGA data processing module is respectively connected with the main control panel and the grating reading head, and the output end of the FPGA data processing module is connected with the sprayer and used for communication of the main control panel, reading of grating data, printing of the sprayer and sending of voltage data.

And the main control panel is connected with the spray head control panel through an optical fiber, and sends serial data to the FPGA data processing module.

And the FPGA data processing module comprises a processor and a memory and is used for storing multiple lines of printing data and voltage data which are checked to be correct and sending printing area data according to the position of the spray head.

And the processor of the FPGA data processing module is used for reading raster pulses of the ink-jet printer, analyzing the position of the spray head and sending a spray head ignition control command to the spray head.

And, the shower nozzle control panel still includes AD conversion module and power amplification module, FPGA data processing module's output loops through AD conversion module and power amplification module and is connected with the shower nozzle for according to shower nozzle driving voltage waveform data, through high-speed AD conversion, power amplification loading to the required voltage waveform of shower nozzle and power demand.

And the spray head control panel also comprises a storage module, the FPGA data processing module is connected with the storage module, and data which are checked to be correct can be transmitted in a two-way mode.

The invention has the advantages and beneficial effects that:

1. the invention can avoid the movement control of the ink vehicle in the X direction by the nozzle plate; the main control board is connected with the spray head control board through optical fibers, so that the communication speed of the main control board and the spray head control board is improved, and the cache capacity of line scanning data is reduced; the data after the shower nozzle control panel buffer memory check-up reduces the data error, improves the efficiency of shower nozzle control panel.

2. The invention can prevent the spray head control board from controlling the spray head to move in the X direction, and reduce the hardware resources of the FPGA data processing module processor and the external memory.

Drawings

FIG. 1 is a block diagram of the components of the present invention.

Detailed Description

The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:

an improved spray head control system comprises a main control panel, a grating reading head, a spray head control panel and a spray head; the main control board is connected with the spray head control board, the output end of the spray head control board is connected with the spray head, and the main control board sends speed pulses and direction switch signals to a closed-loop servo driver of the spray head to complete the motion control of the spray head in the X direction.

In this embodiment, the nozzle control board includes an FPGA data processing module, an input end of the FPGA data processing module is connected to the main control board and the grating reading head respectively, and an output end of the FPGA data processing module is connected to the nozzle and is used for communication of the main control board, reading of grating data, printing of the nozzle, and sending of voltage data.

In this embodiment, the main control board is connected with the nozzle control board through an optical fiber, and sends serial data to the FPGA data processing module.

In this embodiment, the FPGA data processing module includes a processor and a memory, and is configured to store multiple lines of print data and voltage data that are verified to be error-free, and send print area data according to the position of the nozzle.

In this embodiment, the processor of the FPGA data processing module is configured to read a raster pulse of the inkjet printer, analyze a position of the nozzle, and send a nozzle ignition control command to the nozzle.

In this embodiment, the shower nozzle control panel still includes AD conversion module and power amplification module, FPGA data processing module's output loops through AD conversion module and power amplification module and is connected with the shower nozzle for according to shower nozzle driving voltage waveform data, through high-speed AD conversion, power amplification loading to the required voltage waveform of shower nozzle and power demand.

In this embodiment, the nozzle control board further includes a storage module, the FPGA data processing module is connected to the storage module, and data with no error in verification can be bidirectionally transmitted between the FPGA data processing module and the storage module.

In this embodiment, the power module is connected to the FPGA data processing module and supplies power thereto.

The working principle of the invention is as follows:

the main control board sends printing serial data, the printing serial data are transmitted into the nozzle plate FPGA through optical fibers, due to the fact that the printing data volume is large, a storage inside the FPGA cannot store all the printing data, and the FPGA receives the data and checks whether the data are wrong or not; and on one hand, the printable data without error check is stored in the DDR to vacate FPGA resources to continue to accept and check the data. The data of the DDR and the FPGA of the spray head control board, which are checked to be correct, can be transmitted in a two-way mode, and if the data are checked to be correct, error information can be fed back to the main control board and sent again. The FPGA reads raster pulses of the ink-jet printer, analyzes the position of the nozzle, sends line scanning data of a printing area according to the position of the nozzle, sends a nozzle ignition control command, and simultaneously loads voltage waveforms required by the nozzle through high-speed AD conversion and power amplification according to nozzle driving voltage waveform data to complete the supply and control of data, waveforms and ink supply of the nozzle.

It should be emphasized that the examples described herein are illustrative and not restrictive, and thus the present invention includes, but is not limited to, those examples described in this detailed description, as well as other embodiments that can be derived from the teachings of the present invention by those skilled in the art and that are within the scope of the present invention.