Overprint Error Compensation Method for Rotary Screen Printing and Digital Printing Combined Device
A technology of rotary screen printing and digital printing, which is applied in the field of printing and dyeing, and can solve problems such as the inability to set the start time of digital printing, and the inability to ensure that the screen printing pattern and the digital printing pattern are consistent, and achieve the effect of simple structure, reasonable design, and adjustment
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Embodiment 1
[0039] like figure 1 and figure 2 As shown, the device in this embodiment includes a feeding unit 1 , a rotary screen printing unit 2 , a digital printing unit 3 , an image acquisition unit 4 and an information processing unit 5 . The above-mentioned components can be realized by hardware, software or a combination of software and hardware.
[0040] The feeding unit 1 in this embodiment is configured to transmit the material to be printed. The feeding unit 1 has a guide belt 11, a driving wheel 12 and a driven wheel 13. Can be driven by motor.
[0041] The rotary screen printing unit 2 in the present embodiment has a rotary screen 21 prepared with a flower pattern, and the rotary screen 21 is configured to print the flower pattern on the material. The rotary screen printing unit 2 is a prior art, here I won't go into details.
[0042] The digital jet printing unit 3 in this embodiment is configured to perform jet printing according to the target graphics. The digital jet pr...
Embodiment 2
[0047] see image 3 , the overprint error compensation method in this embodiment includes the following steps:
[0048] 1) Determine the rotary screen printing pattern and the digital printing pattern, specifically, determine the large-area solid color as the rotary screen printing pattern, and then process it through the rotary screen printing, and determine the flower pattern as the digital printing pattern. The flower pattern here Refers to complex patterns, gradient colors and patterns with multiple colors, etc., and the above-mentioned pattern patterns are processed through digital printing;
[0049] 2) Align the starting positions of the rotary screen printing and digital printing, so that when the first pattern of the rotary screen printing reaches the digital printing unit 3, the digital printing unit 3 will print for the first time;
[0050] 3) The image acquisition unit 4 is used to obtain the floral pattern after the rotary screen printing, and the information proc...
specific example 1
[0063] Taking the first startup of the device as an example, when the rotary screen printing unit 2 is started, a delay is set for the image acquisition unit 4 and the digital printing unit 3 respectively, and the first rotary screen printing pattern is used as the benchmark (the original comparison of the rotary screen printing ), the image acquisition unit 4 acquires the first flower pattern, and the information processing unit 5 triggers the digital printing unit 3 to print according to the acquired position information of the first flower pattern, and the digital printing unit 3 performs printing on the first flower pattern. The floral pattern of the screen printing is spray-printed, and the image acquisition unit is triggered to collect the image after the spray printing, and the second floral pattern is collected, and the information processing unit 5 obtains the position information of the second floral pattern, and simultaneously calculates the first The deviation value...
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