Our Ragland “Laser-Eye”, touch screen semi-automatic, multi-color registration system for 3-d (round substrates such as non-lugged plastic & glass sleeves/test tubes/cups/drinking glasses/wine, liquor & beer bottles/buckets/pails for example) that we manufacture provides very close repeatable registration accuracy. We have produced excellent four-color process artwork with this press .
We completely dis-assemble a standard Dubuit D-150 press and sand blast and re-paint it to “like new” factory standards. We then install new horizontal 1″ X 48″ diameter steel shafts, new bearings and new wear parts, a new pneumatic squeegee/flood bar assembly, new air valves and gages and new multi-color registration motors/controllers. We replace the traditional electric motor, reducer and cam system with new vertical and horizontal rodless air-cylinders which provide for the raising and lowering/left and right movement of the screen. A new Allen-Bradley PLC (programmable logic computer) is utilized to integrate the rodless air-cylinders with the new Omron laser-eye and the new stepper motor and the new Wagner clutch-brake system which is connected to the new cup mandrel drive shaft. Essentially, this could be considered to be a “new” press….the base cabinet and hood are original.
We utilize a PLC (for speed & reliability) and a clutch-brake for registration accuracy. Without the clutch-brake that locks the mandrel or base-cup into position while the screen is being lowered to the mandrel, any vibration in the press will cause the mandrel or base-cup to move left or right of center which is one of the major causes of poor registration.
Our press is “user friendly” for quick “set-up” from one color to the next and when changing to different sizes of cups or type of printing substrate. Every air-cylinder and air-valve is equiped with green/red “LED” lights for quick and simple diagnosis when a malfunction does occur ( which is a very rare event for our press-please see testimonial letter).
We also can custom machine tooling for every type of bottle or cup or part that you require.
This press can also be equiped with a standard multi-color registration D.C. motor/controller assembly and a tooling fixture so that the press can be operated in the “without eye” mode so that it can also be utilized as a standard press for printing glassware, metal or plastic bottles and cups that have the registration ramp on the bottom that will catch the registration spring-loaded drive pin located in the tooling base-cup..
Crating (completely enclosed with 2X4′s/plywood )
FOB: Eudora, Ks. 66025
Laser-Eye Printer Tutorial
By John Ragland
1. Plug in electrical cord to 110 v. outlet. Do not hook-up pneumatic line at this time. Required: place the screen on the screen arms & tighten down.
2. Select the cup mandrel and determine the proper tooth gear by using calipers to measure the diameter at the center of the cup where the artwork is to be applied on the sidewall in inches with decimal equivalent for fractions of an inch & multiply that number by 20 to obtain the number of teeth.
Example: a 2.54″ diameter x 20=50.80″ = a 51 tooth gear. If fraction is 0.5 or less, round down to next whole number for gear.
3. Raise the adjustable gear rack to the highest position and adjust the tilt of mandrel with cup so that the front & rear of the cup is the same distance from the screen. The turnbuckle on the vertical lift air cylinder can be adjusted to raise or lower the screen. The gear rack can now be lowered to drive the gear.
4. Manually move the screen/arms to the furthest left & right positions and tighten the aluminum locks. Do not in any circumstance loosen or move the black steel split collars – damage will occur if moved out further if printer is cycled.The hydraulic shock dampeners must be fully compressed and then use the Allen wrench to loosen & lightly tighten the electrical sensors in each end of the horizontal air cylinder- adjust the position from outside to inside until the yellow light appears on each sensor.
5. Attach the pneumatic line to the printer and turn the control switch to “no eye” position and verify that the correct stroke length has been achieved. The first color pass or one color jobs can be run on this mode.
6. Preposition cup on mandrel so that the first color on the cup is 2″-3″ to the left of the blue spot (the distance of the eye from the cup must be set so the cup cannot hit or disturb when the printer places the cup on the mandrel). The eye should be spaced ¾”-1″ from the cup & it should be focused so that you see small blue dots on the cup.
7. Place printer control in jog mode and depress jog button until artwork on the screen is over the artwork on the cup to be registered to. While looking down through the screen (drop-light helps), manually rotate & position the artwork on the cup so that it registers with the artwork on the screen. Continue in jog mode until the screen is positioned to the far left and stop just after the screen moves to the down position.
8. To set up for the second color etc:
a) Leave the printer in the jog mode and manually move the eye until the blue dot is inside the artwork to be registered.
b) Set laser eye control to teach and depress teach button.
c) Move the eye control to adjust for 5 seconds.
d) Move control to run.
9. Next, use the jog button to go to home position which is when the screen is up and to the far right. Turn position switch to “run with eye” and position cup 2″-3″ to the right of the eye and depress foot pedal.
10. If printing cycle is interrupted by either depressing the emergency stop or by moving the position switch from “with eye” or to “run without eye” mode, the printer will always return to “home” position (the screen will always stop at the far right and up position).
11. Print the second color (third, fourth, etc.) and adjust the eye for micro-adjusting the registration. Each time the laser eye is moved, you will have to go through the “teach” steps in order for the eye to register the art correctly. Please refer to the Omron operation manual for the laser eye for complete and thorough technical instructions.
Feel free to contact us if you have any questions.