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UVLED curing light source, printing equipment using the light source, and driving control method thereof

A technology for driving control circuits and light sources, applied in light sources, electric light sources, lighting devices, etc., can solve the problems of inconsistent optical energy density and non-adjustable optical energy density in each local area of ​​the light-emitting window, optimize curing effect and reduce energy waste. Loss, the effect of prolonging the life of the light source

Active Publication Date: 2017-03-08
SHENZHEN DUSA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter adopt the light source technology of mercury lamp or LED (light emitting diode) at present, all are to adopt the light source of specific light-emitting window to follow the nozzle to irradiate the ejected ink. The light energy density of the local area cannot be adjusted. In addition, the light energy density of each local area of ​​the light-emitting window of the light source using mercury lamp technology is also inconsistent. Generally, only certain requirements are put forward for the total energy and average energy density of the light source to meet normal curing. Effect

Method used

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  • UVLED curing light source, printing equipment using the light source, and driving control method thereof
  • UVLED curing light source, printing equipment using the light source, and driving control method thereof
  • UVLED curing light source, printing equipment using the light source, and driving control method thereof

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Embodiment 1

[0025] like figure 1 As shown, the UVLED curing light source of Embodiment 1 of the present invention includes a rectangular light emitting window 1 , a UVLED lamp array and a drive control circuit module 2 .

[0026] The above-mentioned UVLED lamp array is covered with a rectangular light-emitting window 1, and the UVLED lamps forming the UVLED light array emit ultraviolet rays through the rectangular light-emitting window 1; and the rectangular light-emitting window 1 divides two or more light-emitting areas arranged along the long side of the rectangular light-emitting window 1 , including the 1st to nth light-emitting regions, where n is a positive integer greater than or equal to 2.

[0027] The drive control circuit module 2 is provided with a control signal input terminal for receiving external setting instructions, a power supply output terminal corresponding to each light-emitting area of ​​the rectangular light-emitting window 1, a digital-to-analog signal converter,...

Embodiment 2

[0030] like figure 2 As shown, the UVLED curing light source of the second embodiment of the present invention is basically the same as the first embodiment, and their difference lies in the implementation of the drive control circuit module 2. Specifically: the drive control circuit module 2 of the second embodiment is provided with a receiving The control signal input terminal of the external control command, each light-emitting area corresponding to the rectangular light-emitting window 1 is provided with a power supply output terminal, the output signal is controlled by the single-chip microcomputer system of the external control command, and a set of digital-to-analog signal conversion is provided corresponding to each power supply output terminal device and a voltage-controlled constant current source. The single-chip microcomputer system has a signal output terminal corresponding to each group of digital-analog signal converters and voltage-controlled constant-current so...

Embodiment 3

[0032] like image 3 and Figure 4 As shown, Embodiment 3 of the present invention is a preferred implementation of UVLED curing light source, which can adopt the structure of Embodiment 1 or Embodiment 2. The difference is that in Embodiment 3, the width of the rectangular light-emitting window 1 is 2cm , with a length of 8 cm, the rectangular light-emitting window 1 is provided with eight rectangular light-emitting areas of the same shape and size from A to H in sequence according to the long side direction, and each rectangular light-emitting area has a width of 2 cm and a length of 1 cm. The power of the UVLED lamps in the eight rectangular light-emitting areas obtained by the drive control circuit module satisfies: W A =W B C D E F =W G =W H , so as to adjust the light energy density of the eight light-emitting regions accordingly. In the figure, the y direction represents the one-way moving direction of the target inkjet medium, and the x direction represents the ba...

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Abstract

The invention discloses a UVLED curing light source, inkjet equipment using the light source and a drive control method thereof. The light source includes a rectangular light-emitting window, a UVLED lamp array and a drive control circuit module. The UVLED light array is covered with a rectangular light-emitting window, and the drive control circuit The module is provided with a control signal input terminal for receiving external control commands. The rectangular light-emitting window is divided into two or more light-emitting areas arranged along the long side of the rectangular light-emitting window. The drive control circuit module is provided with a power output terminal corresponding to each light-emitting area. And each power output terminal is electrically connected to the power supply terminal of the UVLED lamp located in the corresponding light-emitting area, and the drive control circuit module can adjust the power output of each power output terminal according to the received external control command. The light source of the present invention has the advantages that the luminous energy density can be independently adjusted in different regions and has high flexibility.

Description

technical field [0001] The invention relates to a UVLED curing light source, an inkjet printing device using the light source and a driving control method thereof. Background technique [0002] UV (ultraviolet) curing process is the most advanced application of photochemical reaction, through a certain intensity of ultraviolet light irradiation, ink, coating, glue and other related chemicals are instantly cured. With the development of science and technology, the fields involved in UV curing are also more extensive. [0003] Since the mode and speed of inkjet nozzles in the actual application field vary a lot, the ink ejected from the nozzles is also sprayed onto the medium in a multi-layered and cumulative manner in a specific order. In order to optimize the curing process, the specific work can achieve the best curing effect. , the optimal parameters of UV light energy that need to be applied to different parts of the curing object are also different, or different UV irra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J11/00H05B37/02
CPCB41J11/00212B41J11/00214
Inventor 汪广才徐大辉袁会敏
Owner SHENZHEN DUSA TECH CO LTD
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