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Q: How quickly can a tool (mold or die) exchange
be completed safely?
A: Depending on tool weight and extent of
the QDC/QMC program, a tool exchange can be completed safely
in as little as 1 minute. Most industrial applications will
be in the 5 minute range for a tool exchange. As with any
improvement project, large gains in setup time reduction can
be made with moderate costs. Additional minor gains in reducing
changeover times can cost significantly higher amounts for
each additional increment of time saved. A complete QDC/QMC
program will take into account operator training, raw material
input and scrap & finished product out, standardized tool
surfaces, standardized clamping, press rollers, a cart, table,
or shuttle for actual tool exchanging, and tool pre-staging
and storage. Each application is unique and must be reviewed
by experienced personnel prior to determining a feasible/justifiable
changeover system and speed.
Q: Is a mobile vehicle (die cart, die
truck, mold cart, mold truck, etc.) the best type of system
for implementing QMC/QDC?
A: That depends on a number of factors including:
- number of presses being served by the new
system
- goals of the improvement project
- distance and accessibility to tool pre-staging
and/or storage area
- layout of plant and aisle spacing, etc.
- press access and other auxiliary equipment
- operator qualifications and ability
- floor conditions and load capacity
It is best to have a qualified GV applications engineer to
visit your facility to review these and other considerations
before identifying the style of changeover system that would
be best since no two applications are the same. It may prove
that table, shuttles, or other configurations are better suited
for the application and desired goals. Other considerations
are: number of changeovers performed per press per shift or
day, power/fuel type allowed in the plant, capacity of system
in weight and unit loading (single, double, multiple stations),
configuration of system (single station, dual side-by-side,
dual over/under, multiple side-by-side and/or over/under),
pedestrian proximity, etc. The options are endless and require
expert interaction to determine the most beneficial system
for the particular application.
Q: What areas should we consider when
generating a cost justification report?
A: detail the following:
- lower changeover expenses
- increased press capacity
- reduced damage to tools and presses
- reduced injuries
- improved personnel morale
- matching the job process with the correct
tools to do the job
- more flexible production opportunities
Q: How soon can I get a unit?
A: Although GV has many modules and
standards to use as building blocks for your system, we do
not have completed units ready for shipment. Our experience
has been that each application has unique requirements that
require custom tailoring. A typical application requires data
gathering, quotation, purchase order, approval process, production
release, manufacture, test, run-off, and ship. This entire
process can take as little as 4-6 weeks for small applications,
to as much as 30 weeks for large automated systems.
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