Operation BWP Issue 2.pdf - 第12页
12 Issue 2, Nov 14 Objectiv e OP 6 – Run print er in productio n Reference: M achine Operator manual The first few boards printed in the production run will highlight a ny problems with th e setup of the printer o r proc…
Issue 2, Nov 14
11
Objective BWP 5 – Inspect condition of process hardware
Reference: Operator best working practices manual
Prior to using any process hardware it should inspected to ensure it is fit for function. i.e.
Clean and free from damage and it is the correct specification as defined by the process
design.
Failure to do this may result in machine error messages and print defects.
Preparation
Tick off each of the following items as you complete them:
Review each process hardware section of the best working practices manual
Demonstration
Given a selection of process hardware and with reference to the BWP manual perform the
following actions. Tick off each one as you complete them:
Select the appropriate hardware for the product file to be printed.
Inspect the hardware to ensure it is fit for function
Load the hardware in the machine
12
Issue 2, Nov 14
Objective OP 6 – Run printer in production
Reference: Machine Operator manual
The first few boards printed in the production run will highlight any problems with the setup
of the printer or process hardware. It is important to observe carefully at this stage any
problems that may lead to error messages or defective prints.
Preparation
Tick off each of the following items as you complete them:
By following the procedures in the operator manual and with assistance from your
instructor
Set a batch limit and zero batch count
Perform a manual paste knead operation
Demonstration
Having completed the preparation phase, perform the following tasks:
Cycle at least ten boards through the printer
Ensure that there are no machine error messages
Ensure that printed boards are free from print defects
Questions
Complete these sentences:
Q1. When the squeegee / ProFlow print stroke is from front to back monitor the stencil to
ensure that __________________________.
Q2. When the squeegee print stroke is from back to front ensure that ____________
_________________________________.
Comment [JS4]: The stencil is clean (a dirty stencil
suggest a tooling problem or damaged blades
Comment [JS5]: the material is rolling and there is
sufficient roll volume
Issue 2, Nov 14
13
Objective BWP 6 – Run printer in production
Reference: Machine Operator manual
The first few boards printed in the production run will highlight any problems with the setup
of the printer or process hardware. It is important to observe carefully at this stage any
problems that may lead to error messages or defective prints.
Preparation
Tick off each of the following items as you complete them:
By following the procedures in the operator manual and with assistance from your
instructor
Set a batch limit and zero batch count
Perform a manual paste knead operation
Questions
Q1. List two situations when a batch limit would be used in production
A1.
Q2. List three occasions when a paste knead should be performed?
A2.
Demonstration
Having completed the preparation phase, perform the following tasks:
Cycle at least ten boards through the printer
Ensure that there are no machine error messages
Ensure that printed boards are free from print defects
Questions
Complete these sentences:
Q3. When the squeegee / ProFlow print stroke is from front to back monitor the stencil to
ensure that __________________________.
Q4. When the squeegee print stroke is from back to front ensure that ____________
_________________________________.
Comment [t6]: Page: 14
To remind the operator to check the
quantity of paste on the stencil
to stop the machine whilst a board is
being manually inspected
Comment [t7]: Page: 14
At initial paste load, after paste top-ups,
after an auto paste dispense, after a
prolonged period of inactivity (NOTE:
AUTO KNEADS MAY BE SETUP IN
THE PRODUCT FILE TO COVER
THESE EVENTUALITIES)
Comment [JS8]: The stencil is clean
(a dirty stencil suggest a tooling
problem or damaged blades
Comment [JS9]: the material is rolling
and there is sufficient roll volume