BASIC INTRODUCTION TO CONVEYORS
SECTION SIX
COUPLINGS
Types of couplings are as follows:
A. Hook and rod normally used on conveyors at
temporary installations. These are only provided on wheel or SSR/SAR
roller conveyors. Hook and rod couplings can be used in fixed
installations with stationary floor supports.
B. Butt Couplings used in fixed installations and are attached to
each corner of the bed section for bolting the sections together.
SECTION SEVEN
ACCESSORIES
1. The traffic cop is a mechanical device with
spring loaded arms and cams located at the junction of two powered
conveyor lines and prevents the flow of carton traffic on one line
from interfering with the flow on the adjacent line. In other
words, it eliminates collision of cartons arriving at the junction
simultaneously. If possible, the two conveyors should be of the
live roller type.
2. Case stops of blade and roller type are available as hand
operated and foot operated. The air cylinder operated type is
available as the roller type only. The blades or rollers are
located between the rollers on the live roller or gravity
conveyors only. They cannot be used in the middle of a belt
conveyor, for obvious reasons.
3. Turning wheels are used at the junction of a branch line to a
main line to insure proper carton orientation and to prevent
cartons from falling off the conveyor during the course of the
transfer.
4. Angle end stop is mounted to the ends of the conveyor side
frames to prevent the continued flow of cartons on the conveyor
from falling off of the conveyor.
5. Guard rails are available in many shapes and sizes. Their
purpose is to prevent cartons from falling off the conveyor and
they must be used on all overhead conveyors.
6. Ball transfers consist of a large steel ball riding on a bed of
smaller balls all contained within a steel stamping to hold and
support the configuration together. We utilize a pattern
arrangement of ball transfers on a steel bed in a conveyor line to
permit cases to be manually positioned or rotated easily.
7. "Y" Switch of skatewheel design provides a simple
method of converging or diverging cartons. Consult the Hytrol
General Catalog for a description and photo.
8. Spur curve switch of skatewheel design also provides a simple
method of converging or diverging cartons. Again consult the
Hytrol General Catalog.
9. Carton push-offs come in various sizes and designs. All
push-offs simply push a carton at right angles to the original
direction of flow. The overhead push-off is a high speed air
cylinder actuated unit which can cycle up to 40 times per minute
and can push carton with weights up to a maximum of 150 lbs. The
medium duty horizontal push-off can push up to 300 lbs. and the
heavy duty over 300 lbs. A horizontal push-off will cycle
considerable less than the 40 cycles per minute available with the
overhead unit.
10. Pop-up wheel diverter is specifically designed for use in the
190-ACC Accumulating conveyor. It provides for high speed
automatic diverting of cartons onto a 30 degree spur. It consists
of three rows of 2 1/2 inch diameter powered wheels, the mechanism
of which is raised and lowered pneumatically. It can handle
cartons of 150 lb. maximum weight up to 40 cycles per minute
maximum. A description and photo is in you Hytrol General Catalog.
11. High speed diverter uses a powered diverting belt and can
handle maximum weight cartons of 200 lbs. each. It is best used
for rapid singulation and diverting. See the Hytrol General
Catalog.
12. The powered turn-table is used when two parallel lines must be
close together. The minimum turning radius is much less than our
standard roller or even powered curves.
13. The manually operated turn-table simply consists of a given
length of conveyor on a revolving mechanism, which allows the
conveyor to be manually turned and positioned for
"inline" flow of products. It is used where curves are
unable to fit into the system. Pneumatic and motor indexing
turntables are also available.
14. Plows can only be used to divert to a 30 degree spur from a
main line. In addition to the manual1y positioned plow, Hytrol has
the pneumatic positioned plow as well as the V-belt motorized and
pneumatic positioned unit.
15. Manual Vertical Gates for gravity lines are available and the
maximum length of gate is determined by the weight of the conveyor
to be lifted. Gates are used to provide access through a conveyor
line.
16. Spring Balanced Gate allows the use of heavier gates than with
manual gates with the use of tension springs adjusted to provide a
minimum weight lift.
17. Horizontal Swing Gates with castered supports can also be
supplied. The conveyor in this instance may be powered as well as
gravity.
18. Jump transfers are devices set between rollers of gravity or
live roller conveyor to transfer the product at right angels from
the conveyor. They perform the same function as the push-offs
under more controlled circumstances. Hytrol has available the
skatewheel transfer, the powered V-belt transfer and the powered
chain transfer. In most instances, air bags are used to raise and
lower the transfer.
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