Liquid spraying amount control system and control method thereof as well as ink-jet printing device

Abstract

The invention provides a liquid spraying amount control system and a control method thereof as well as an ink-jet printing device. The liquid spraying amount control system comprises nozzles used forspraying liquid and also comprises a light irradiating mechanism used for irradiating light to corresponding positions for spraying liquid of the nozzles so as to enable liquid to generate necking inlight irradiating positions and form a predetermined quantity of liquid droplets. According to the liquid spraying amount control system, the light irradiating mechanism is arranged and is capable ofenabling the liquid sprayed out by the nozzles to be locally heated in irradiated positions, so that the liquid generates necking in the irradiated positions to form the liquid droplets, the quantityof the liquid droplets can be controlled, and the liquid spraying amount of the nozzles is uniform.

Description

technical field

[0001] The present invention relates to the technical field of printing, and in particular, to a liquid ejection amount control system, a control method thereof, and an ink jet printing device. Background technique

[0002] Inkjet printing technology is widely used in automotive, electronics, aerospace, medical engineering and other fields, and has become an important technology in modern advanced manufacturing technology.

[0003] The key criterion for measuring the quality of inkjet printing is the uniformity of the amount of each ink jet.

[0004] The uniformity of the ink jet volume of ink jet printing is generally considered to be mainly determined by three factors. First, the control accuracy of the power propulsion system; second, the uniformity of the inkjet liquid; and finally, the stability of droplet formation. The power propulsion system can improve the uniformity of each propulsion amount through high-precision equipment; the uniformity of the ...

Examples

Embodiment 1

[0036] This embodiment provides a liquid spray quantity control system, such as figure 1 As shown, it includes a nozzle 1 for spraying liquid, and a light irradiation mechanism 2 for irradiating light to the corresponding position where the nozzle 1 sprays the liquid 3, so that the liquid 3 is necked at the light irradiation position, thereby forming a Set volume of droplets.

[0037] Among them, necking refers to the phenomenon of local cross-sectional reduction of liquid materials under tensile stress. The setting of the light irradiation mechanism 2 can make the liquid 3 ejected from the nozzle 1 locally warm up at the irradiated position, so that the liquid 3 is necked at the irradiated position to form droplets, so that the amount of droplets can be controlled. Furthermore, it is possible to achieve uniform spraying amount of the nozzle 1 .

[0038] In this embodiment, as figure 2 As shown, the light irradiation mechanism 2 includes a light source 21, a calculation co...

Embodiment 2

[0049] This embodiment provides a liquid spray quantity control system, such as image 3 As shown, on the basis of the liquid spray quantity control system in Embodiment 1, in this embodiment, there are multiple nozzles 1 and multiple light irradiation mechanisms 2, and the light irradiation mechanisms 2 are arranged in one-to-one correspondence with the nozzles 1, and each The light irradiation mechanism 2 is used to respectively control each nozzle 1 to eject a set amount of droplets; the light source is a point light source.

[0050] The light emitted by each light source is correspondingly irradiated on the liquid 3 ejected by one nozzle 1, so as to realize the independent control of the ejection amount of each nozzle 1, and also realize the uniformity control of the ejection amount of all nozzles 1. .

[0051] The irradiation positions of each point light source on the liquid 3 ejected by each nozzle 1 can be the same. For example, when each nozzle 1 is used to eject the...

Embodiment 3

[0057] This embodiment provides a liquid spray quantity control system, which is different from Embodiment 2 in that, such as Figure 4 As shown, on the basis of the liquid spray quantity control system in Embodiment 1, in this embodiment, the nozzles 1 include a plurality of nozzles 1, and the plurality of nozzles 1 are arranged in a straight line, and the light irradiation mechanism 2 includes one light irradiation mechanism 2 and The plurality of nozzles 1 correspond, and the light irradiation mechanism 2 is used to control each nozzle 1 to eject a set amount of droplets; the light source is a line light source.

[0058] The light source is a line light source, and the light emitted by the line light source irradiates the liquid 3 ejected by each nozzle 1 correspondingly. The irradiation position of the line light source on the liquid 3 ejected by each nozzle 1 can be the same. When 1 is used to spray the same liquid 3, the irradiation position of the line light source on t...

technical field

[0001] The present invention relates to the technical field of printing, and in particular, to a liquid ejection amount control system, a control method thereof, and an ink jet printing device. Background technique

[0002] Inkjet printing technology is widely used in automotive, electronics, aerospace, medical engineering and other fields, and has become an important technology in modern advanced manufacturing technology.

[0003] The key criterion for measuring the quality of inkjet printing is the uniformity of the amount of each ink jet.

[0004] The uniformity of the ink jet volume of ink jet printing is generally considered to be mainly determined by three factors. First, the control accuracy of the power propulsion system; second, the uniformity of the inkjet liquid; and finally, the stability of droplet formation. The power propulsion system can improve the uniformity of each propulsion amount through high-precision equipment; the uniformity of the ...

Examples

Embodiment 1

[0036] This embodiment provides a liquid spray quantity control system, such as figure 1 As shown, it includes a nozzle 1 for spraying liquid, and a light irradiation mechanism 2 for irradiating light to the corresponding position where the nozzle 1 sprays the liquid 3, so that the liquid 3 is necked at the light irradiation position, thereby forming a Set volume of droplets.

[0037] Among them, necking refers to the phenomenon of local cross-sectional reduction of liquid materials under tensile stress. The setting of the light irradiation mechanism 2 can make the liquid 3 ejected from the nozzle 1 locally warm up at the irradiated position, so that the liquid 3 is necked at the irradiated position to form droplets, so that the amount of droplets can be controlled. Furthermore, it is possible to achieve uniform spraying amount of the nozzle 1 .

[0038] In this embodiment, as figure 2 As shown, the light irradiation mechanism 2 includes a light source 21, a calculation co...

Embodiment 2

[0049] This embodiment provides a liquid spray quantity control system, such as image 3 As shown, on the basis of the liquid spray quantity control system in Embodiment 1, in this embodiment, there are multiple nozzles 1 and multiple light irradiation mechanisms 2, and the light irradiation mechanisms 2 are arranged in one-to-one correspondence with the nozzles 1, and each The light irradiation mechanism 2 is used to respectively control each nozzle 1 to eject a set amount of droplets; the light source is a point light source.

[0050] The light emitted by each light source is correspondingly irradiated on the liquid 3 ejected by one nozzle 1, so as to realize the independent control of the ejection amount of each nozzle 1, and also realize the uniformity control of the ejection amount of all nozzles 1. .

[0051] The irradiation positions of each point light source on the liquid 3 ejected by each nozzle 1 can be the same. For example, when each nozzle 1 is used to eject the...

Embodiment 3

[0057] This embodiment provides a liquid spray quantity control system, which is different from Embodiment 2 in that, such as Figure 4 As shown, on the basis of the liquid spray quantity control system in Embodiment 1, in this embodiment, the nozzles 1 include a plurality of nozzles 1, and the plurality of nozzles 1 are arranged in a straight line, and the light irradiation mechanism 2 includes one light irradiation mechanism 2 and The plurality of nozzles 1 correspond, and the light irradiation mechanism 2 is used to control each nozzle 1 to eject a set amount of droplets; the light source is a line light source.

[0058] The light source is a line light source, and the light emitted by the line light source irradiates the liquid 3 ejected by each nozzle 1 correspondingly. The irradiation position of the line light source on the liquid 3 ejected by each nozzle 1 can be the same. When 1 is used to spray the same liquid 3, the irradiation position of the line light source on t...

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