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During
1998 the New Zealand Dairy industry required a valve to enable an existing
2 lane filling machine, which was designed to dispense milk into cartons,
to be capable of dispensing either cold yogurt or hot custard containing
fruit particulates.
The
filling machine incorporated a spring operated valve system, ideal for
liquids but unsuitable for passing solids. The cartons were to be filled
at a rate of 3250/hr per lane or about one per second.
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A
client required a simple hydraulically operated device for lifting a stack
of 25 timber pallets during a process cycle, including a horizontal conveyor.
The pallets were to be lifted to three different heights, very fast and
accurately positioned.
The
resulting design incorporated twin hydraulic rams operating a scissor
action unit as shown, mounted inside a chain conveyor. Simple and very
effective.
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A
press tool was required to punch “tear tab” shapes between small yogurt
containers produced by a New Zealand dairy company. The
unit shown operates every 2 seconds to punch 12 containers full of product
including a metal foil heat-sealed to the top face of each container.
This
unit has been manufactured to very fine tolerances to ensure both the
plastic container and the metal foil is cut correctly. The resulting tool
was more accurate and more cost effective than the original tool made
in Europe.
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A
home appliance manufacturer required a complete automatic manufacturing
assembly line for a range of refrigerators and doors.
This
line was to include the positioning of various brackets for fixing
to the outside cabinet components.
The
feed unit shown here provided the movements to position a special
bracket from a vibratory feeder to the cabinet as required. |
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A
home appliance manufacturer required stainless steel refrigerator doors
to be embossed with a specific branding. Six different doors each required
a different style of emboss and were to be manually loaded and unloaded
to a suitable machine. The resulting design comprised a rotating index
table mounted behind a hydraulic press.
The
index table housed six individual press tools, each fitted with a different
emboss tool. An operator selected the emboss style to suit a particular
product run and the index table and side guides automatically positioned
the tool ready for production.
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This
client required a product comprising two plastic parts to form an ear
tag for farm animals. The main ear tag is moulded using a soft plastic,
with a small rigid plastic pyramid shaped component, about 9mm square
x 9mm high, acting as the component to pierce the animals ear.
The
pre-moulded pyramid shape was required to be loaded into a 16-cavity mould,
prior to the ear tag being moulded. The solution to this problem resulted
in two vibratory bowl feeder units serving two chutes.
The
pyramids were correctly orientated and transferred to a horizontally moving
carriage which then loaded the mould. This unit surpassed the required
cycle time and operates unattended 24 hrs / day. |
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