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camera systems

THIEME Vision System

The THIEME Vision System is characterized by two independent camera systems for automatic screening and automatic alignment of the printed material. The two systems ensure a consistently high register accuracy.

  • Both systems together provide the optimum of short set-up times,
    low reject rate and high repeatability
  • Each Vision-System can also be used separately
Two independent camera systems for automatic screening and automatic alignment of the printed material

1. Camera system for Screen positioning

Why Screen positioning?

 
  • Automatic Setup
  • Reduce set-up times
  • High-precision screen alignment
  • Minimum make ready prints

Specifics


The days of manual adjustment of screen position belong to the past. Set up your Thieme screen printing machine in less time and gain valuable production time. And this with an very high accuracy, minimizing set up prints.

Functionality


During the screen production process 2 marks are inserted at specific locations on each screen. If the screen is inserted into the machine and positioned using the standard 3-point system, the two alignment points will be in the defined camera window.
The camera system detects the position of the alignment points and thus the position of the screen and moves the screen automatically to the desired position.
Screen with alignment-fiducials
Screen with alignment-fiducials


Technical data

   
Number of cameras 2
Alignment mark [mm] round, white, ø1,5
Alignment period [s] 1 - 2 *
Screen adjustment electromotive
Control Siemens
Camera resolution  [mm] 0,01
Alignment window [mm] 12 x 12
* = as a function of accuracy

2. Camera system for Substrate positioning

Why Substrate positioning?

 
  • High-precision printing-material alignment
  • Reduction of make ready prints
  • Eliminates placement errors
  • High reproducibility

Specifics


Reduction of set up prints and an improvement in accuracy?
Not a contradiction with the new Thieme Vision System!
Increase your productivity and quality. The Thieme Vision system brings
a new level of quality.

Functionality


With the first print 2 - 4 registration marks are printed. Each time you print the camera system detects the position of the registration marks of the first print. The air bearing printing-table with the fixed substrate moves to the desired position. After very precise alignment the printing table moves underneath the printhead and the substrate is printed.
By using the system, various alignment-scenarios can be selected (z. B. mediation in material- shrinkage).
Vision-Substrate positioning THIEME LAB 1000
Vision-Substrate positioning THIEME LAB 1000


Technical data

 
Number of cameras up to 4
Alignment mark [mm] flexible
Alignment period [s] 1 - 2 *
Control Siemens
Table alignment electromotive , air bearing
Table power unit servomotor
Camera resolution [mm] 0,01
Alignment window [mm] 12 x 12
* = as a function of accuracy
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