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Патент USA US3099877

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Aug. 6, 1963
E. J. PONTING
3,099,867
CASTING MACHINES
5 Sheets-Sheet 1
Filed Aug. 4, 1961
60-1
l
1
Av1/fm TOR
EAP/c’ ¢/, @ONT/NG
Aug. 6, 1963
E. J. PoNTlNG
3,099,867
CASTING MACHINES
Filed Aug. 4, 1961
5 Sheets-.'Shee’fl 2
l
Aug. 6, 1963
E. .1. PoNTlNG
3,099,867
CASTING MACHINES
Filed Aug. 4, 1961
5 sheets-sheet s
Aug. 6, 1963
E. J. PoNTlNG
3,099,867
CASTING MACHINES
Filed Aug. 4, 1961
l
5 Sheets-Sheet 4
idw/f@
Aug. 6, 1963
E. J. PoNTlNG
ì
3,099,867
CASTING MACHINES
Filed Aug. 4, 1961
5 Sheets-Sheet 5
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amasar
Patented Aug. 6, 1963
Z
3,099,867
CASTING MACHINES
_
Eric James Ponting, Sutton Coldíìeld, England, assigner
to Ingot Casting Machines Limited, Birmingham, Eng
and
Filed Aug. 4, 1961, Ser. No. 129,464
Claims priority, application Great Britain Aug. 6, 1960
9 Claims. (Cl. 22-76)
FIGURE 5 -is a section, on a larger scale, along the
line V-V, FIGURE 4.
The ingot casting machine shown in FIGURES l-3
comprises a number of moulds 1 each of which is fixed
upon and lengthwise of one end of a corresponding one
of an equal number of tubular arms 2 of rectangular
cross section.
The arms project from the interior of a casing 4 through
an endless slot 3 in the «front wall 1a of the said casing,
This invention has reference to casting machines of the
the moulds being iixed upon the outer ends of the arms
kind wherein moulds are carried in parallel relationship
whereas, internally of the casing, each of the said arms
by and along the length of an endless conveyor compris
is carried about an endless conveyor arranged with one
ing an upper span, and means are provided for pouring
run disposed above the other. The arms are supported
molten metal into each of the said moulds in succession
cantilever fashion by the respective engagement of two
as they are traversed along the said upper span.
Heretofore, in machines of this kind, the moulds have 15 rollers 5, 6 in a trackway constituted by channel-section
tracks 7, 7a and 8, 8a which are disposed with their flanges
been carried by and between two endless, power-driven
deñning concentric runways between which the rollers are
chains of the conveyor, the said chains have been housed
trapped.
within a casing in the top of which an opening has been
The casing consists of a skeleton framework which is
formed, and the upper span of the conveyor has been so
arranged that, when the conveyor is being driven, the 20 enclosed by metal sheets. The framework comprises a
moulds are caused to pass in succession below the open
ing as they are traversed along the said span so that the
rectangular base frame constructed from longitudinal
beams 9, 9a and transverse beams 9', 9a', a top frame
including longitudinal beams 10, 10a and transverse
beams lil', 10a', a rear wall frame including bea-ms 11,
opening.
The principal object of the present invention is to mini 25 11a and a track carrier consisting of beams 12, 12a. The
beams 11, 11a of the wall frame project upwardly from
mise the possibility of a casting machine of the kind re
and perpendicularly to the rear longitudinal beam 9 of
ferred to, being temporarily rendered inoperative as a con
the base frame, the two beams 11a at one end of the
sequence of molten metal splashing or spilling from any
molten metal may be poured into each mould through the
casing being longer than the beams l1, whereas the top
of the moulds onto one or more of the moving parts of
the machine, and subesquently solidifying on the said part 30 frame beams 10, 10a, lil', lita’ are supported cantilever
fashion by the wall beams 11, 11a to overlie the base
or parts.
frame and extend forwardly to the front casing wall 1a,
Further objects of the invention are to facilitate the
and the beams of the track carrier are arranged in pairs,
initial erection and subsequent maintenance of a casting
the beams 12, 12a of each pair being ñxed, cantilever
machine, and to provide a casting machine which is of eco
nomical, eñ‘icient and robust construction and has a long 35 fashion and one above the other, to a corresponding one
of the wall beams l1 or 11a, being located between the
useful life.
base and top frames and in overhanging parallel relation
In accordance with the said invention, each of the
ship to the base frame, and extending 'forwardly to the
moulds of a casting machine of the kind referred to, is
front wall la of the casing.
located externally of a casing and is mounted upon one
The two channel-section tracks are identical and paral
end of a corresponding cantilever arm of which the oppo 40
lel to one another and each consists of two identical
site end is attached to a power-driven endless conveyor
halves namely, an upper' half 7, S which is fixed upon the
accommodated internally of the casing.
top of and at right angles to the upper carrier beams 12,
Preferably the casing comprises a sheet-clad skeleton
and a lower half 7a, 8a which is fixed to the underside
framework which is constructed from beams and which
comprises a base `frame, a rear wall frame located along 45 of and at right angles to the lower carrier beams 12a; each
track half extends lengthwise, but terminates short of the
and perpendicular to one longitudinal edge of the base
opposite ends of the interior of the casing and consists
frame, and a cantilever track-carrier projecting from the
of two contiguous portions of which one -is parallel to the
said wall frame «in parallel and overhanging relationship
base frame whereas the other is inclined to the said frame
to the base frame.
To expedite solidiñcation of the molten metal as it is 50 and extends towards the upper ends of the longer Wall
frame beams 11a. The two tracks are arranged mouth
poured into the moulds, it is desirable to install a liquid
to mouth with the bases of the track halves 7, 7a in abut
cooling system in the machine. Whilst the cooling system
ment with the shorter beams 11 and one of the longer
may be of any desired construction, preferably each
beams 11a, and the bases of the track halves 8, 8a in
mould is formed with a hollow jacket which, together with
the jackets of all the other moulds, is connected into a ilex 55 abutment with the lfront wall of the casing between the
upper and lower spans of the endless slot 3.
ible and endless manifold located parallel to and substan
Each of the cantilever arms is provided with two angle
tially co-extensively with the conveyor, means being pro
brackets 13, 13a -upon each of which a corresponding one
vided for driving the manifold at the same speed as the
of the rollers 5 and `6 respectively is journalled, the said
said conveyor, and a ñexible liquid supply pipe con
nected into the said manifold is wound around a spring 60 brackets being so located lengthwise of the arm and the
rollers being so journalled upon the said brackets that
loaded reel so that the connection between the pipe and
manifold is free to travel along the length of the latter
each roller 5 is adapted to engage and travel along the
and the pipe is always taut.
track 7, 7a and each roller ‘6 is adapted to engage and
In order that the invention may be more readily under
travel along the track S, 8a and, during such travel, the
stood and carried into practice, reference will now be 65 arms are guided along and between the edges of the slot 3.
made to the accompanying drawings wherein:
Between the roller brackets 13, 13a, each shaft has
FIGURES l and 2 are, respectively, an elevation and .
two pairs of brackets 14, 14a fixed thereto; leach of the
a plan of an ingot casting machine;
said brackets pairs embraces and is pinned to a corre
FIGURE 3 is a section on a larger scale, along the line
70 sponding one of two endless conveyor chains 15, 15a and
III-III, FIGURE 1 ;
each chain extends around and meshes with a correspond
FIGURE 4 is an elevation, partly diagrammatic, show
ing one of ltwo sprockets 16, 16a which, respectively, are
ing an alternative mould-cooling system, and
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lfast upon a corresponding one of two axles .17, 17a
extending transversely of the casing. The axle 17a is
the main driving axle, is located between the two longer
beams 11a of the rear wall frame and is journalled in
ybearing blocks 18, y18a fixed respectively upon lbeam 19
secured to and extending between the said beams 11a,
and upon `an external »gantry 20 located on the side of the
moulds remote from the casing.
One end Vof the main
driving »axle `17a extends into a ige-ar »case 21 assembled
»to the outside of the rear Wall 1b of the casing 4, and a
sprocket 22 housed within the gear case and fast upon
the main driving axle, is meshed by an endless chain 23
4
and »be delivered into any suitable receptacle such as the
lreceptacle indicated at 69.
The cooling of the moulds and their molten metal
contents by spraying water on to the said moulds whilst
being propelled through the'tunnel, has the disadvantage
that water is sprayed directly on to the said contents and
the exterior of the _moulds and may not be evaporated or
drained from the moulds before the latter emerge from
the tunnel. Therefore, to overcome this disadvantage, it
Iis preferable to install in the machine the -alternative'cool
ing system shown diagrammatically in FIGURE 4 and
in section in 'FIGURE 5.
-In this system, and »as Ishown in FIGURE 5, each mould
'which also meshes with a sprocket 24 accommodated
within the gear case and fast upon the output shaft 25
1 is lformed with a ywater jacket 40* which extends around
of the speed reduction gear uni-t l26 housed within the 15 its walls and over its base. At the free end of the cor
casing `4. Drive to the said gear unit is transmitted from
responding arm 2, one end of a iiexible inlet pipe 41 is
-an electric motor 27, which is also housed within the
connected into the jacket at the level of the jacket base,
casing 4, through sprockets 28, 29 and an endless chain
.the opposite end of the said pipe being connected to »the
30 meshing »with the said pinions. The axle 17 is jour
arm of a tubular T-shaped fitting ot ywhich -the head is
`ualled in bearing .blocks 31, 31a which are ?xed respec 20 connected into yan endless ñexible ring main pipe or mani
tively upon -a gantry 32 Iwhich is housed within the cas
fold 42. At the end of each mould Iadjacent the casing
ing '4 'and an external gantry 33 which, like the gantry
20, is located on the side of the moulds remote from the
4, one end of a discharge pipe 43 is connected into the '
jacket adjacent the rimof the mould; the saiddischarge
said casing; the blocks 31, »31a are Iadjustable lengthwise
pipe extends into the interior of the corresponding arm
of the machine for the purpose of varying :the tension 25 and then along the said arm away from the mould, its
.in lthe conveyor chains 15, 15a.
opposite end being connected to an exhaust port formed
A tunnel 34 is ñxed upon and lengthwise of the external
in the -arm |wall between a pair «of external ñanges 44
surface of the casing
1a in such Aa position that the
provided on the arm. When the moulds and arms are
moulds 1 are propelled into land lthrough the said tunnel
travelling along the upper spans of the conveyor chains,
as they travel »along the upper spans of the conveyor 30 the ñanges y44» depend into the mouth 45 of the upper of
chains. The closed end of a perforated U-shaped pipe
two superimposed ducts '46», 46a installed within and longi
35 mounted in and extending lengthwise of the upper part
tudinally of the casing l4 below the level of and parallel to,
of the tunnel and above the path of travel of the moulds,
the Vupper 'and lower spans respectively ofthe said con
.is connected to any suitable supply of water (such »as a
veyor chains: on the other hand, when the «arms and
Water main or a tank) and is iitted with spray jets (not 35 moulds are being propelled `along the lower «spans of the
shown) so that, as the moulds are propelled through the
conveyor chains, the said ñanges depend into the mouth
said tunnel they are sprayed with water and cooled;
45a of the duct 46a. Discharge pipes 47, 47a extend
excess Water is drained from the tunnel through an out
respectively from the ducts 46, 46a and either reach to a
let 36 into which a discharge pipe (not shown) yis con
drain or are connected into ya water circulating system
nected so that-the said ex-cess water may be fed either to 40 containing a heat-exchanger, pump, tank and the mani
a drain (if the pipe 35 i-s connected to a Water main) or
fold 42.
to a pump (if .the pipe 35' is connected lto a tank) adapted
All the flexible inlet pipes 41 reach into the interior
to return the water to :the tank. A flue 37 iixed upon the
of a housing v48 (not shown in FIGURE4) which is
top and opening into the interior of the tunnel, contains
parallel to the casing 4 and is located on the opposite
an exhaust fan (not shown) for exhausting steam and
side of the moulds to the said casing and in which the
45
»fumes »from the said interior.
endless .manifold is accommodated. The manifold is
When «the motor 427 is running, drive is transmitted to
substantially co-extensive Iwith the conveyor chains and
the m-ain axle V17a through -the chain 30, -speed reduction
angle brackets 49 are anchored to »and at equi-distant
gear unit 26, and chain 23, with Ithe result that the
intervals apart, along the length of the said manifold.
sprockets ¿16a drive the conveyor chains 15, 15a and 50 Each bracket 49 is provided with a roller 50 which en
the chains propel the hollow arms 2 along the slot 3
gages and is adapted lto travel along an endless `channel
at a uniform, predetermined speed, the said arms being
section guide track 5‘1 mounted upon the internal surface
guided by the engagement of their respective rollers 5
of the housing wall 52 remote lfrom the casing 4, and is
and 6 inthe channel section tracks 7, 7a land 8, 8a. As
anchored to an endless chainr53. The chain 53 extends
the arms and moulds are propelled along the upper spans 55 round »and meshes kwith -two sprockets S4, 55 fast upon
of the conveyor chains and slot, molten metal is poured
axles 54o, 55a, respectively, journalled in the Wall 52;
into each of the said moulds by pouring means (not
the said axles are in axial alignment with the ‘axles 17,
shown) located between the tunnel and the external
17a respectively, and the axle 55a yis driven by the motor
gantry 33, the moulds and their molten content-s being
27 through the speed reduction gear unit 26, an output
cooled `as they enter and travel through the tunnel, by 60 shaft 56 located below the main driving axle 17a and the
water sprayed from the pipe 35. Consequently, the metal
lower duct 4601, a sprocket 57 fast upon the said output
is cooled to a temperature below its melting point in
shaft, a chain 58, and a sprocket '59 .fast upon the shaft
`a minimum time so that the length of the machine and
55a. The output shaft 56 is `driven at a speed such that
the number of moulds are also reduced to 4a minimum,
the manifold is driven at the same speed as the conveyor
the said temperature being attained before each of the 65 chains 15, 15a so that each T-shaped union and ñexible
said moulds emerges ñrom the tunnel so that as eac-h arm
inlet pipe 41 are always in alignment 'with the correspond
2 travels around the sprockets 416a on the main axle 17a,
ing mould y1 and hollow arm 2.
the ingot produced by the solidilied or 4frozen metal in
To enable Water :to -be fed into the manifold, a spring
the mould, may -be discharged'from the said mould. By 70 loaded reel 6€) of known construction and having a hollow
inclining the channel section tracks 7, 7a and 8, 8a up
hub, is journalled within the casing 48 between the upper
wardly from the base frame 9, 9a, 10, 10a, the main
and lower spans lan-d the oposite ends of the manifold.
axle is at a higher elevation than the axle 17 so that, as
One end of a iiexible pipe 61 wound around the reel,
each ingot is discharged from its mould, it may fall into
is connected into the manifold through a universal cou
a chute 38 ñxed upon thev outside of the casing wall 1a, 75 pling land the opposite end of the said pipe y‘61 is connected
3,099,867
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5
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trackway, said trackway including concentric runways
into the reel hub into which a. water supply pipe 62 is
»between which said roller means are trapped to support
said arms cantilever fashion, means connecting said end
less idrive means with said arms for advancing the latter
around said trackway `on their roller means; a casing en
closing said conveyor and having in ‘one side wall an end
also connected by -a watertight gland permitting rotation
of the hub relatively to the supply pipe.
The reel is so spring-loaded that it tends to rotate in
the direction which winds the flexible pipe 61 on to the
reel hub. As a consequence, the unwound portion of
the said pipe between the reel hub and the universal
less slot coextensive and in registry with said trackway,
said arms extending laterally of said trackway through
said slot and beyond said casing; and a mold carried by
`each of said arms exteriorly of said casing, whereby said
conveyor is protected -fr-om splashing or other misdi
rection of molten casting metal as it is poured into
the molds.
2. A casting machine according to claim 1 wherein
coupling to the manifold is always in tension and taut
so that it is maintained in a substantially straight line and
in, or substantially in, the `same plane as the manifold,
thereby preventing any fouling or damage which might
possibly be caused if the said pipe portion was slack.
Nevertheless, as the said universal coupling travels round
its closed path due Ito the rotation :of the sprockets 54,
55 and the consequent movement imparted to the manifold
by the chain 53 and brackets 49 under the guidance of
the track 51, the ability of the reel to rotate both against
and under spring action, enables the length of the un
wound pipe portion to increase and decrease alternately
said Iconveyor is elongate and said molds are open at
the top and are ñxed on said arms to be in an upright
position as they travel along the uper span of their path
of movement, one end portion of the upper run of said
conveyor being smbstantially horizontal to enable pour
ing molten metal into said molds and enabling the metal
as the coupling is driven away from and towards the 20 to set and the other end portion of the upper run of
reel during each travel cycle along the said closed path.
said conveyor being inclined upwardly to enable the
Consequently, water supplied to the pipe 62 from a
cast metal to solidify and elevate said molds so that the
main or a tank, as the case may be, ñows continuously
to and through the hub of the reel, fthe partially wound
pipe 61, the manifold 42, outlet pipes 41, mould jackets
40, discharge pipes 43, and the exhaust ports in the hollow
arms 2 so that the moulds and the molten metal contained
therein are cooled; as the walter ñows through the said
castings may vbe [dumped from the molds when they travel
25
around the end of their path and are invented as they pass
into the return ‘nun of their path.
3. A casting machine according to claim l wherein said
conveyor is elongate, and said machine further comprises
a iiexible endless manifold for transmitting cooling liquid,
exhaust ports, it is directed by the flanges 44 into one or
means movably supporting said manifold to he coex
other of the ducts 46, 46a from where it flows through 30 tensive with fthe path lof said mold, liquid cooling jackets
the pipes 47, 47a to the drain or is pumped back to the
respectively surrounding said molds, a conduit connect
ing each mold jacket to said manifold for communication
tank.
Since the area bounded by the manifold must be clear
therebetween, and means ‘for driving said manifold in
of any obstruction which could be fouled by or obstruct
timed relation to the speed o-f said conveyor so that the
the movement of the unwound portion of the flexible pipe 35 manifold and conduits to the molds travel uniformly with
61, the axles 17, 17a of the chain conveyor must not pro
said molds.
4. A casting machine according to claim 3 including
ject through the front wall tof the casing 4; therefore, in
a source Iof liquid supply connected to said manifold and
the modified machine shown in yFIGURES 4 and 5, the
bearing blocks 18a and 31a are located between their re 40 comprising a flexible pipe wound around a spring-loaded
reel, one end `of said pipe being connected to the mani
spective sprockets 16, 16a land are mounted upon plat
lfold and the .other end being connected into the reel
forms lor anologous expedients carried «by beams extend
hub, and through a supply pipe which is connected into
ing vbetween and parallel to the conveyor claims 15, 15a
the said hub -by a liquid-tight gland.
and secured respectively to, for example, the correspond
ing adjacent pair of cantilever, track-carrying beams 12, 45 5. A casting machine according to claim 4 wherein
the reel is ldisposed within the area bounded lby and sub
12a.
stantially in the plane of the manifold.
It will be appreciated from the foregoing rthat, whilst
6. A casting machine according to claim 5 compris
the motor 27 is running, the conveyor chains 15, 15a will
ing cooling liquid discharge pipes respectively connected
propel the hollow arms 2 yand moulds 1 continuously along
the closed path defined by the endless slot 3 and the chan 50 to each mold jacket and running through the respective
mold supporting arms to outlet ports interiorly of said
nel-section tracks 7, 7a l‘and 8, 8a. Molten metal is
casing, and discharge troughs underlying the runs of said
poured successively into each mould >as the latter com
arms in alignment with the path of said ports.
mences rto travel along the upper spans of the conveyor
7. A casting machine according to claim 6 wherein
chains and slot, the mould and its metal contents being
cooled and solidified by water sprayed from the pipe 35 55 the manifold is attached to an endless chain by brackets
which are spaced along the length >of the manifold and
(FIGURES 1-3) or ñowing through the mould jacket
are provided with rollers engaging an endless channel
40 (FIGURES 4 and 5) and the resulting ingot being
discharged from the mould as the latter is travelling from
the upper to the lower spans :of the said chains and slot;
section track that is coextensive with said conveyor, said
chain meshing with sprockets which are ñxed axles in
being poured, ingots are being produced and discharged
intermittently. Moreover, since all the moving parts of
conveyor driving means at a speed which drives the mani
consequently, Whilst the motor is running and metal is 60 respective axial alignment with the conveyor axles and
of which at least one is adapted rto lbe driven hy the
fold at the same speed as the conveyor.
the machine (with the exception of the moulds and mould
8. A casting machine according to claim 7 wherein
carrying ends of the hollow arms) are contained within
and are protected by the casing 4, should any molten metal 65 said manifold is disposed opposite the path of said molds
Ifrom said casing, and a second casing enclosing said
spill for splash from the moulds, it is prevented from fall
manifold, supply reel and supporting chain to shield
ing on to and solidifying on any of the said protected
them ‘from splashing or misdirected molten metal, said
parts and putting the machine out of commission.
second casing having an endless slot in the wall facing
What I claim is:
1. A casting machine comprising an endless conveyor 70 said molds and coextensive with the path thereof and
through which said conduits extend and along which they
arranged with one run ‘disposed above the other and in
travel.
cluding an endless trackway and endless `drive means co
9. A casting maching comprising an elongate base
`extensive with said trackway, a plurality of arms extend
yframe, an upright wall yframe mounted on said ‘base
ing transversely of said trackway, roller means journaled
frame and extending along one longer side thereof, a
on each of said arms and respectively mounted on said 75
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top Aframe«supported by said wall frame »in cantilever
the portion bounded by said slot being supported »by the
fashion and overlying said base -frame, and beams sup
ponted `at one end byv said wall frame bet-Ween said
base and top frames and extending cantilever ,fashion
horizontally fin overlying relation to said base yframe,
an elongate endless conveyor supported by said beams
free ends of said lbeams, said arms extending laterally
of said tracks through said slot and ‘beyond said casing;
said tracks »each including concentric krunways between
and including apair of uniformly spaced coextensive
which said rollers are trapped ito support said arms in
cantilever fashion; 'and a mold carried by each of said
arms exteriorly of said casing, whereby said conveyor is
endless tracks the :upper Iruns of which are mounted on
protected from splashing or other -misdirection of molten
top of said beams and the lower runs of which are
casting metal as it is poured into Vthe molds.
mounted on the Ibottoms ‘of said beams, a plurality of 10
arms extending transversely of said tracks, a pair of
rollers journaled on each of said arms and respectively
References Cited inthe -tile of this patent
mounted on said tracks, endless drive means .coexten
sive with said tracks and connected with said arms for
UNITED 'STATES PATENTS
advancing the latter around said tracks on their rollers; 15
a casing enclosing said conveyor and having in one side
wall an endless slot coextensive and in registry with said
tracks, fthe portion of said side Iwall surrounding said
2,322,795
2,672,661
2,887,121
2,904,860
Magee _____________ __ May 19, 1959
. Hazelett ________ _`._____,Sept. 22, 1959
slot bein-g supported by said base and top `frames and
2,191 0,745
Norton _____________ __ Nov. 3, 1959
Enderich ____________ __ June 2,9, `1943
¿Lutz _______________ __ Mar. 23, 1954
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