PRODUCTS & APPLICATIONS MECHANICAL COMPONENTS A FASTENER SOLUTION FOR CASH DRAWERS
As a provider of sheet metal fasteners – including Hank Self-Clinch, Hank Rivet Bushes, weld nuts and weld studs, blind rivets, K-nuts, cage and swage nuts – TR Fastenings’ products are used across a wide range of sectors. In one example, TR has been
working with Cash Bases, a manufacturer of customised cash drawers for major retailers worldwide, for over two decades. As well as providing fasteners and fixings, TR provides technical advice and support with the research and development of new products, such as the newly launched SMARTtill system. The SMARTtill offers automated cash management
technology and monitors point-of-sale transactions in real time. It also enables the retailer to monitor the cash flows of any given till, ensuring adequate change
values are available and alerting management when cash levels reach minimum or maximum values. This has already been adopted by Tesco, which recently placed orders for 11,400 for use in its Tesco Extra and Superstore outlets. With such high demand
expected for these ‘intelligent’ cash drawers, Cash Bases required the latest process technology and so, following TR Fastenings’ advice, has invested in the new Haeger 824 Window Touch 4E, which features easy and fast tooling set up and retrieval, an
auto feed system (feeding 40 plus fasteners a minute) and an advanced logic insertion system. Distributed in the UK by Shear-Form, the new press has halved production time.
TR Fastenings
www.trfastenings.com Enter 213 ‘SEALED FOR LIFE’ FORKLIFT CHAIN ROLLER
A new ‘Sealed For Life’ chain roller has been introduced by FB chain that is said by the company to reduce forklift downtime and increase the time between service intervals. Of benefit, the roller does not require regreasing, and it can
withstand over 60,000 cycles when lifting a four-tonne load to a range of heights, the company claims. Not only has one forklift
manufacturer client announced that it will be using the new rollers on all of its new machine
designs, but it is reverse engineering its existing truck designs to allow the new chain pulleys to be adopted across its entire range.
FB Chain
www.fbchain.com
Enter 214 HYGIENIC CLAMPING
ASSEMBLIES New from Ruland are hygienic clamping assemblies to help protect food processing, medical and other types of equipment from bacteria buildup. Available from Techdrives, these
provide a smooth uninterrupted surface that can be cleaned in place, and can be used as guides, spacers, clamping devices and hard stops. They offer holding power similar to clamp style shaft collars and allow for simple positioning adjustments without marring the shaft. The proprietary design is IP69K rated against the ingress of dust and water up to 80°C and eight to 10MPa of pressure. The patent pending design consists
of a type 303 stainless steel shaft collar, a two-piece housing made from FDA compliant materials, and three O-rings with NSF H1 registered lubricant.
Techdrives
www.techdrives.co.uk
Enter 215
CONVEYOR ACCESSORIES
WDS has launched a range of accessory products for conveyor applications, including components that help to support and manage a conveyor line. The new components, which are
suitable for use in both factory and clean environments, can be used in bespoke modular conveyor lines and general machine frameworks. Leg supports, conveyor bed support heads and a variety of brackets and clamps to guide and manage conveyed product are all available, the company explains. The standard conveyor range
comprises of 22 new part numbers, together with two sizes of stainless steel tube. All of the components are manufactured using polypropylene and stainless steel.
WDS Component Parts T: 0113 290 9852
www.wdsltd.co.uk
MINI SPINDLE SUITS SEISMOMETER DESIGN
Eichenberger Gewinde, the Swiss ballscrew and leadscrew manufacturer, has developed a miniature threaded spindle which is playing a vital role in the fine adjustment of the three pendulums in a seismometer. Geophysicist G. Streckeisen began developing seismometers in the 1970s and since 2010 two employees
have continued to run the company. Using Streckeisen’s principle of three pendulums and a feedback system, in conjunction with modern components, they built an instrument that followed its successful predecessor. When designing sensitive devices like seismometers, any introduced stress
lives on in quasi form in the device, later leading to a deterioration of the output signals. This also applies to mechanical components under tension where the screws have been excessively tightened, as well as in parts from component suppliers. In addition, in operation the seismometer should be able to record the slightest movement of ‘ground noise’ despite vibrations caused by people, cars, etc., and unwanted signals from the weather and even the moon. The new Streckeisen seismometer consists of three sensors arranged at 120˚
to the others, each of which contains a precisely balanced, upside-down diagonal pendulum that is maintained in its central position by means of a temperature-compensated spring and a feedback system. The pendulum mounting is free of play; and the capacitive travel sensor records the pendulum position to an accuracy of a few atoms wide. Control electronics and a coil provide the corresponding restoring force. The sensor signals are converted into values for the X, Y and Z axes which come via a cable connection into a digitalisation box that logs all data before forwarding it to an earthquake centre by radio, telephone or satellite link. The device must be aligned exactly to the east prior to use at the appropriate location. As every
Enter 216
location has a different temperature and gravitational force, fine adjustment of the three pendulums occurs automatically. The travel sensor determines the pendulum position and corrects the pendulum balance with the aid of an adjusting mass, which is pushed along a rolled Eichenberger threaded screw until the pendulum exactly occupies the central position. Factors behind the selection of the threaded screw, which has two ground ends of h6 quality, are the
surface quality and the thread geometry. Even the position of the rolled thread arranged on the middle of the longitudinal axis has to satisfy the highest demands for tolerance. In addition, the substance has to be absolutely non-magnetic. All of this is done with a screw with a diameter of just 4mm. Eichenberger Gewinde ballscrews and leadscrews are available in the UK from Moore International.
Moore International 20 MARCH 2014 | DESIGN SOLUTIONS T: 01202 743222
www.mooreinternational.co.uk Enter 217 / DESIGNSOLUTIONS
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