A liquid injection volume control system, its control method, and an inkjet printing device
A technology of a control system and a control method, which is applied in the field of printing, can solve the problems of difficulty in controlling droplet stability, and difficulty in further improving the uniformity of the inkjet volume, and achieves the advantages of improving the uniformity, the uniformity of the liquid injection volume, and the printing quality. Effect
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Embodiment 1
[0036] This embodiment provides a liquid spray volume control system, such as figure 1 As shown, it includes a nozzle 1 for ejecting liquid, and a light irradiation mechanism 2 for irradiating light to the corresponding position where the nozzle 1 ejects liquid 3, so that the liquid 3 is necked at the position where the light is irradiated, thereby forming Set amount of droplets.
[0037] Among them, necking refers to the phenomenon of local section reduction of liquid materials under tensile stress. The arrangement of the light irradiation mechanism 2 can locally heat up the liquid 3 ejected from the nozzle 1 at the irradiated position, so that the liquid 3 can be necked to form droplets at the irradiated position, thereby realizing the control of the droplet volume, Furthermore, it is possible to achieve uniformity in the amount of sprayed liquid from the nozzle 1 .
[0038] In this example, if figure 2 As shown, the light irradiation mechanism 2 includes a light source ...
Embodiment 2
[0049] This embodiment provides a liquid spray volume control system, such as image 3 As shown, on the basis of the liquid spray volume 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, 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] Among them, the light emitted by each light source is correspondingly irradiated on the liquid 3 ejected from a nozzle 1, so as to realize the independent control of the amount of liquid sprayed by each nozzle 1, and at the same time realize the uniformity control of the amount of liquid sprayed by all nozzles 1 .
[0051] The irradiation position of each point light source on the liquid 3 sprayed by each nozzle 1 can be the same, such as when each n...
Embodiment 3
[0057] This embodiment provides a liquid spray volume control system, which is different from Embodiment 2, such as Figure 4 As shown, on the basis of the spray volume control system in Embodiment 1, in this embodiment, the nozzle 1 includes multiple nozzles 1 arranged in a straight line, and the light irradiation mechanism 2 includes one light irradiation mechanism 2 and Corresponding to multiple nozzles 1, the light irradiation mechanism 2 is used to control each nozzle 1 to eject a set amount of liquid droplets; the light source is a line light source.
[0058] Wherein, the light source is a line light source, and the light emitted by the line light source is correspondingly irradiated on the liquid 3 ejected by each nozzle 1, and the irradiation position of the line light source on the liquid 3 ejected by each nozzle 1 can be the same, such as when each nozzle 1 When used to spray the same liquid 3, the irradiation position of the line light source on the liquid 3 sprayed...
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