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Browse Prior Art Database

Gas-Activated Separating/Release Mechanism

IP.com Disclosure Number: IPCOM000119655D
Original Publication Date: 1991-Feb-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 4 page(s) / 117K

Publishing Venue

IBM

Related People

Akam, NJ: AUTHOR [+4]

Abstract

This article describes a simple compact device which can be used to gate, release one at a time, small symmetrical components at high volume feed rates with minimum risk of crushing or deforming them. The mechanism disclosed employs two pneumatic cylinders sequentially operated in order to allow springs to be dispensed into an automatic assembly machine one at a time without tangling.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Gas-Activated Separating/Release Mechanism

      This article describes a simple compact device which can
be used to gate, release one at a time, small symmetrical components
at high volume feed rates with minimum risk of crushing or deforming
them.  The mechanism disclosed employs two pneumatic cylinders
sequentially operated in order to allow springs to be dispensed into
an automatic assembly machine one at a time without tangling.

      The spring 4, in Fig. 1, is used in the construction of the
switch mechanism incorporated in keyboards.  Due to high volume
manufacturing requirements of the product, this component must be fed
rapidly, one at a time, in a manner that ensures consecutive parts do
no interlock, common with open-ended coil springs.  It also essential
that the spring is not crushed or deformed in any way as this would
seriously affect its operation in the keyboard.  This mechanism meets
the above requirements in a simple compact device which could be used
for the gating of other small symmetrical components that require to
be fed at high volume rates.

      Fig. 1 shows an isometric view of the device and the direction
of component feeding.  A separator/drive input 3 is powered by
compressed air.

      Fig. 2 shows the position of the pistons 1 and 2 in a cut
away view of the device, together with the (open) hinged access flap.
The pistons 1 and 2 are used to separate and release the springs 4,
described in detail below, in a manner that prevents them from being
damaged or the end coils from becoming entangled.  The two pistons
are driven in opposite directions by miniature pneumatic air
cylinders 5 and 6 connected to an pneumatic 'NOT' gate.  The return
actions are by means of small springs situated at the opposite end of
the piston shafts 7 and 8.

      In its non-active position, Fig. 2, piston 1 is driven and
piston 2 is off.  This allows the sp...