GL541操作手册.pdf - 第53页
Part 2 2 – 20 2.4 Reading the Glue Reference Diameter and Area Procedure: (1) Press the [SET] and [STATUS] function keys. Press the [GLUCHK] function key to display G.ref.set in the first display area. Note: Refer to Par…
Part 2
134 Glue check limit [%] Feedback control range
This item provides a basis for evaluating whether the shape and area of the
dispensed glue dots are correct or not.
The diameter feedback range is calculated according to the following formula:
Reference diameter x (1 ±Glue_check_limit / 100)
and the area feedback range is calculated as:
Reference area x (1 ±Glue_check_limit / 100)
2
Feedback is carried out if the dot diameter or area lies inside these limits.
Note: For details on glue volume reference data settings, see 2.4, “Reading the
Glue Reference Diameter and Area”.
138, 139, 140 Needle_Z1, Z2, Z3 Needle type
The search method for glue dots differs for single and twin needles.
Input 1 or 2 corresponding to the type of needle attached to each of the dispensing
syringes.
141, 142, 143 Glue_area_Z1, Z2, Z3 [um
2
/%] Area change
This item refers to the change in the glue area [um
2
] for a 1% increase in air
pressure. This change depends on the type of glue and the temperature at the time
of application.
144 Glue_check_delay Camera on delay (number of sequences)
After the glue check dots are dispensed by the glue check sequence this item sets the
delay (number of sequences) before the camera measures the dots. (This data is
referenced according to the order of the program sequence data.)
Notes: After setting this value and transmitting the Proper data to the machine from F4G,
the program in the machine foreground must be changed in order to enable this
function. Change the program either by retransmitting it to the machine or using
the program change function at the machine.
If the area of a glue dot is measured immediately after it is dispensed and then
again after five to ten minutes, it is found that the area increases by approximately
10%. This increase is due to the glue dot gradually spreading out. The amount of
spreading depends on the viscosity of the glue. This change must be taken into
account when setting the reference area and diameter.
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GL-541E Operation
Chapter 2 Glue Check Function
Version 2.0
Part 2
2 – 20
2.4 Reading the Glue Reference Diameter and Area
Procedure:
(1) Press the [SET] and [STATUS] function keys.
Press the [GLUCHK] function key to display G.ref.set in the first display area.
Note: Refer to Part 3, Chapter 3, Description of Commands, page 513-000, “Selecting
the Glue Check Mode”.
(2) Carry out the glue check sequence using step or automatic operation and stop when
the dispensed glue volume viewed by the camera is correct. The operator has to
look at the monitor and visually determine when the glue volume is correct. The
final measured diameter and area are then taken as the reference values.
(3) Leave the automatic operation mode. Press the [SET], [STATUS], and [GLUCHK]
function keys again to display “G.correct” in the first display area.
This mode permits the feedback conditions to be adjusted.
(4) To manually adjust the glue reference diameter and area, “G.ref [%]” will display in
the bottom left-hand corner of the screen. Using the numeric keypad, it is possible
to change the reference diameter. Use the following commands:
[SET] -> [MANUAL] -> [GLUE] -> [G ref. set] -> [Z1], [Z2] or [Z3]
Nozzle
Glue
Board
GL-541E Operation
Version 2.0
Chapter 2 Glue Check Function
Part 2
Example: Input 110 [CR] to increase the current diameter [um
2
] by 10%. The
corresponding area (in pixels) is added to the reference area (displayed as Ref.data in the
display above).
2.5 Carrying Out Glue Dot Feedback
2.5.1 Glue Dot Feedback Sequence
The GL-541E glue dot feedback procedure is carried out in the following order.
(1) Apply glue dots according to the set data.
(2) Acquire images of the glue dots with the CCD camera.
(3) Inspect the glue dots.
(4) Check the size of the glue dots.
(5) Check the area of the glue dots.
(6) Calculate the amount of feedback.
(7) Apply this feedback to the application air pressure.
FUJI v2.00
off_1 line
No.Prog Prod 0000 Sche 0000 Ref Set
Ref.data: 1500(vm2)
Set-up
Return
Ref [%]
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GL-541E Operation
Chapter 2 Glue Check Function
Version 2.0