00191413-01.pdf - 第331页

User Manual Line Computer UNIX 11 Production Tools / Optimization Software Version 501.xx 01/99 Issue 11.3 Setup Optimization 11 - 11 ● Conve rsion Criteria (if nozzles ar e mi ssing) 1. The a dditional ly requ ired nozz…

100%1 / 621
11 Production Tools / Optimization User Manual Line Computer UNIX
11.3 Setup Optimization Software Version 501.xx 01/99 Issue
11 - 10
Effect of the Lot Size on the Optimization Results
The effect of the lot size can be expressed using the following formula:
Machine run time saving = production time saving - setup changeover time
Production time saving = lot size x (old production time - new production time)
Production time saving with respect to one setup changeover operation = old production time - new
production time
The following two examples will demonstrate the importance of a realistic lot size.
Example 1:
Lot size = 1
Changeover time per feeder = 60 sec
Production time = 60 sec
For a feeder setup changeover to make sense, the production time gain must be at least 60 sec. This is
impossible in example 1.
Example 2:
Lot size = 100 (or 100 lots with lot size 1)
Changeover time per feeder: = 60 sec
Production time per lot = 60 sec
In this case, a feeder setup changeover would be sensible already with a production time gain of 1 sec. per
lot, as this results in a machine run rime saving of 40 sec.
11.3.3.4 Station Setup by Setup Optimization
Setup of Nozzle Changer (IC-Head or Turret Head)
If an empty Nozzle Changer is allocated to a configured station, Setup Optimization will assign to the Nozzle
Changer all nozzles required for the placement of the components contained in the particular setup.
If a completely set up Nozzle Changer is allocated to the configured station (see chapt. 12), Setup Optimization
performs a check as to whether all components contained in the setup can be placed by means of the assigned
nozzles. If not, the Nozzle Changer is converted by Setup Optimization.
User Manual Line Computer UNIX 11 Production Tools / Optimization
Software Version 501.xx 01/99 Issue 11.3 Setup Optimization
11 - 11
● Conversion Criteria (if nozzles are missing)
1. The additionally required nozzles are assigned to the free compartments of the Nozzle Changer.
2. Setup Optimization attempts to place all the other required nozzles into compartments which are
occupied by a nozzle type which is available in the Nozzle Changer several times.
Example: If compartments 2 and 4 have been assigned nozzle type "316", Setup Optimization
tries to place the required nozzle type into compartment 2 or 4.
3. Setup Optimization replaces all nozzles that have been allocated to the Nozzle Changer but are
not required, with nozzles that have not yet been set up but are required for the particular setup.
Setup of Waffle-Pack Changer
Waffle-pack magazines (WTs) require waffle-pack tray carriers (WTCs).
The allocation of WPTs to WPCs is performed with the aid of the Feeder Editor.
WTCs are automatically included in the setup created by the Setup Optimization (just as modules are set up if,
for example, a 4.5 mm or 9.5mm linear feeder is required).
NOTE
Empty WTCs set up at a configured station or as part of a fixed setup are not
assigned waffle-pack trays
by Setup Optimization.
For each WTC a maximum of one waffle-pack tray is set up.
(The assignment of several waffle-pack trays to a particular WTC can be specified in the fixed setup).
Manually loaded WTCs are automatically included in the setup.
Feeders are only placed underneath a manual WTC of the HS-180 if a fixed setup has been preset in which
feeders are to be set up underneath the WTC.
Head camera and CRDL Tester are not set up automatically
NOTE
Head camera and CRDL Tester must have been configured at the station by means of the Configuration
Editor prior
to the use of the Setup Optimization (see chapt. 12) if components are present that have to be
centered optically or require CRDL measuring.
11 Production Tools / Optimization User Manual Line Computer UNIX
11.3 Setup Optimization Software Version 501.xx 01/99 Issue
11 - 12
11.3.3.5 Machine Restrictions Taken Into Account
In the Setup Optimization the following restrictions relating to the IC head or turret head have been taken into
account for the following procedures:
IC Head
● External mechanical centering
If a component is to be centered by means of the external mechanical centering station it may only be placed
by the IC head if an external mechanical centering station is available that can be accessed by the head.
● External optical centering
If a component is to be centered by means of the external optical centering station, it may only be placed
by the IC head if an external optical centering station is available that can be accessed by the head. Moreover,
at least one sensor type contained in the package form description of the component (see chapt. 6) must
be identical to the sensor type of the optical centering station.
● Coplanarity Measurement
If a coplanarity measurement is to be performed on the component, and if a coplanarity module is available
on the line, the component may only be placed by the IC head if the coplanarity module can be accessed
by the head. Moreover, at least one sensor type contained in the package form description of the component
(see chapt. 6) must be identical to the sensor type of the coplanarity module. If no coplanarity module is
available on the line, the component may be placed by the IC head without these restrictions applying.
● IC Disposal by Means of Disposal Belt
If in the case of faults the component is to be disposed of on a disposal belt and if such a device is available
on the line, the component may only be placed by the IC head if the IC disposal belt can be accessed by
the head. If no IC disposal belt is available on the line, it may be placed by the IC head without this restriction
applying.
Turret Head
● Centering on the head by means of jaws
If the component is to be centered on the head, it may only be placed by the turret head if the head is
equipped with jaws.
● Centering by means of head camera
If the component is to be centered by means of a head camera, it may only be placed by the turret head if
a camera is available on the head. Moreover, at least one sensor type contained in the package form
description of the component (see chapt. 6) must be identical to the sensor type of the head camera.
● CRDL Test
If the components requires electrical testing, it may only be placed by the revolver head if a CRDL measuring
system (measuring jaws, measuring board) is available at the head. If no CRDL measuring system is
available on the line the component can be placed without any restrictions to be observed. A corresponding
warning will be displayed.