close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2110972

код для вставки
I
March 15, 1938.
'
'
v
r
R. w. DINZL
BRIQUETTING
MACHINE
Filed March 18, 1957
I ‘
'
2,110,972
_
. 3‘ Sheets-Sheet l
0)
q.
INVENTOR
RICHARD W Dmz|_
JZA€ZGZ7
AT ORNEY
March 15, 1938.
-
R, w. DvmzL
2,110,912
BRIQUETTING MACHINE
‘Filed March 18/ 1937
‘
s Shé'eté-Sheet 2
, INVENTOR
EICHHBD W. Dmzz.
iII
,
March 15, 1933.
2,110,972
R: W. DINZL
-\BRIQUETTING MACHINE
Filed March 18, 1937
a
gig
”//////////%
‘ \‘ \))))’:
I
5
1
a
é
IIIIIIIIIIIIIII"
III’.
S
z m,
x
S
’» 1111111111111,
3 Sheets-Sheet 3
2,110,972
. I Patented Mar. 15, 1938
UNITED STATES PATENT QFFI€E
2,110,972
BRIQUETTING MACHINE
Richard w. Dinzl, Narberth, Pa., assignor a)
Baldwin-Southwark Corporation, a corpora
tion of Delaware
Application March 18, 1937, Serial No. 131,593
17 Claims. (or. 25-84)
This invention relates generally to hydraullc others that the invention might take in practice,
presses and more particularly to an improved
hydraulic briquetting machine.
. Various types of briquetting machines, partic
5 ularly of the mechanical type, have'heretofore
been proposed and used but they have been de?
cient in various respects especially when used in
certain ranges of capacity, for then, the necessary
gears, toggle mechanism and frame structure in
.0 volve a high initial cost as well as require a very
large amount of ?oor space. i
It is one object of my invention to provide an
improved hydraulic briquetting machine which is
relatively simple and comparatively inexpensive
5 in construction, maintenance and operation, and
yet has all of the desired qualities of speed and
maximum
compressing action combined
structure generally indicated at in while the '
other end of the base has a stationary platen i1,
Figs. 1 and 2a. The main cylinder structure has
four ears generally indicated at 12, two at the hot- 10
tom and two at the top, and platen H has similar
ears generally indicated at l3. The platen and
main cylinder are secured to base 6 by longitudi
nal tie rods i4 extending through the lower set of
cars and the hollow portions 1 and 8 thereby to 15
hold the cylinder and platen in ?rm abutting rela
with , tion to the base. A similar set of rods i5 extend
through the upper set of ears and also tln-ough a
handling as well as accessibility of parts.
pair of rugged spacer members it and- i1 inter
posed between the upper ears l2 and 13. Thus 20
the cylinder and platen are ?rmly held in a very
rugged manner against distortion in any direc
tion due to the relatively large size of the hollow
spacing columns'l, 8, l6 and i1.
.
Disposed within cylinder I0 is a maximum load 25
ram 20 which is hollow to form a cylinder 2! for
The
for other materials.
A further object is to provide an improved con
5 trol system for a briquetting machine whereby an
improved predetermined sequence of operations
may be effected with ease, positiveness and dis
patch together with minimum wear and tear on
the machine.
‘
Other objects and advantages will be more ap
parent to those skilled in the art from the follow
ing description of the accompanying drawings in
which:
Fig. 1 is a plan view of my improved machine;
5
connected by a suitable integral transverse web
9. Located at the left end of base 6 in'abutting 5
relation thereto is a main operating cylinder
ruggedness, durability, compactness and ease of
0 machine herein disclosed is especially applicable
for briquetting metal shavings although its prin
ciples of operation and construction may be used
3
I have shown a press comprising, Fig. 3, a cast
base 6 having two parallel hollow portions 1 and 8
Fig. 2 is a vertical section of the main ram
taken substantially on the line 2-2 of Fig. 1;
Fig. 2a. is a vertical section of the other end of
the machine forming a continuation of Fig. 2 and
taken substantially on the line 20-41: of Fig. 1;
l
Fig. 3 is a transverse section taken substantially
on the line 3-—3 of Fig. 1;‘
_
Fig. 4 is a horizontal section taken substantially
on‘ the line 4-4 of Fig. 2a to show the hydraulic
stripping cylinders and plungers;
connections one of which communicates withva
passage 21 leading to an operating chamber 28
and the other of. which leads by a passage 29 to
the second operating chamber 30 of the low load 35
cylinder. A suitable packing gland 3i secured to
ram 20 is interposed between the latter and ram
22 while another packing gland interposed be
tween ram 20 and cylinder 10 is secured thereto.
Removably supported by the front endrof ram 40
20 is a compressing plunger 33 having an enlarged
preferably cylindrical ?ange 34 held in a suitable
recess within ram 20 by a collar 35 bolted or
otherwise suitably secured to ram 20. This
Fig. 5 is an end elevation viewed 111 the direc
tion of arrow 5 in Fig. 2a.;
Fig. 6 is a diagrammatic outline of the piping
diagram and control mechanism for the various
press elements;
Fig. 7 is a modi?ed arrangement of air operat
ing pullback cylinders for the plunger and mold
casings.
a stationary low load ram 22. This latter ram
has a rod in threaded engagement 23 with a plate
24 which is bolted as at 25 to the closed end of
cylinder l 0. A suitable collar 26 is formed on the 30 '
end of the ram to receive ?uid pressure operating
'
In the particular embodiments oi’ the invention
such as are disclosed herein for the purpose of
illustrating certain speci?c forms among possible
plunger, Fig. 2a, extends forwardly into telescopic 45
relation with a plunger casing 4| formed as part
of a. unitary hopper and mold structure generally
indicated at 36. The front end of plunger 33,
Fig. 2a, is provided with a removable material en
gaging portion 31 which has a stem. 38 disposed 50
within a suitable bore of plunger 33. A trans
versewedge or other suitable transverse key 39
securely holds the parts 33 and 31 together, it
being noted, however, that-in the forward posi
tion or the plunger casing 4| (which is the posi- 55
2
. 2,110,972
tlon shown in Fig. 2a) , the main body portion of
latch arm 8| engaging a groove in the valve stem.
plunger 33 is disposed well within the bore 43 of
easing 4|. This casing is removably secured to
Thereupon hydraulic pressure from a suitable
pump 63, preferably of any well-known constant
speed positive displacement type with manual ad
justment of the volume, is supplied through a
the wall 42 of the unit 36.
The unit 36 has a hopper 43 to feed material
into a laterally accessible material chamber 44
pipe 34 and a valve 85 which was previously
preferably substantially square in plan view, Figs. . moved to its down position during the preceding
cycle, to be described later, and held therein by a
1 and 2a. The unit is also mounted for longi
tudinal reciprocable movement by the provision, pivotal latch 85' engaging a valve stem groove.
10 Fig. 3, of lateral ?anges 45 slidably supported in Fluid pressure from valve 35 then passes through 10
face, certain of the bolts being omitted from Fig.
2a, for purpose of clarity, although their location
is indicated by the reference numeral 43 therein.
pipe 36, valve 33 and a pipe 81 to the small cylin
der chamber 28 of the main operating ram. Si
multaneously ?uid pressure is supplied from the
pump through valve 85 and a pipe 88 to the
pullback chamber 33 of the main ram mechanism, 15
but due to the larger area of chamber 28, ram 20
will move forwardly pushing briquetting mate
rial from chamber, 44, Fig. 2a, into mold 52. As
The forward wall of unit 36 has a mold sleeve or
20 casing 52, Fig. 2a, removably secured thereto by
a bolt and keeper ring construction 53. r
the briquette 3|, Fig. 2a, begins to compress, it
oifers increasing resistance to movement of 20
plunger 33 and its ram 20, with consequent in
suitable guideways 46 formed’ on the upper sur
faces of the hollow base portions 1 and 8. Suit
able vertical ?anges 48 have screws 43 threaded
therein for laterally adjusting strips 53 which en
15 gage ?anges 45 along an inclined guiding sur
54 opposed to compressing plunger 33, is prefer
ably adapted to be telescopically received in the
creasing pump pressure until ?nally an automatic
pressure responsive valve 83, Fig. 6, opens to
admit full pressure from the pump through a pipe
25 bore of mold sleeve 52, and is provided with a
v9|! to the large operating end of cylinder 10. This
A ?xed backing wall or mold closing plunger
preferably circular ?ange 55 ?rrnly held by a col
lar 56 in a suitable recess within platen II. It
will be noted that the bottom 51 of chamber 44
is preferably in alignment with the lowermost
30 portion of the cylindrical plunger bores in casings
4i and 52.
An air cylinder 58, secured to the outside of
platen II, has a piston 53 provided with a limit
stop ?ange 53' engageable with a cooperating
35 shoulder in the cylinder.
The piston has sep
arable abutting engagement with a diagonal
crosshead 60 which is connected by rods 6| and 62
to suitable ears 63 and 64 respectively, Figs. 2a
and 3, formed on the outside of the unit 36.
The
will immediately give to the briquette a ?nal
pressing action under a large force. At any time
during the compressing action if the frictional
resistance between the briquette and the walls
of the mold 52 should increase sufiiciently, the 30
mold together with the whole unit 36 will, under
the in?uence of this frictional force, bodily move
forward in the direction of movement of the
plunger. If this frictional force should not be
come sufficiently great to effect said bodily move 35
ment, the briquette will nevertheless be formed.
Such frictionally induced movement is independ-.
ent of the air cylinder and piston 58, 53 by virtue
of the stop shoulder arrangement 59’ limiting out
40 rods are slidably supported in guide lugs 60' on
ward movement of piston 53 but permitting rod
6| and crosshead 63, Fig. 2a, to move freely to
cylinder 53 so as to constantly bias unit 36 to the > the right away from the now immovable piston
right. To move unit 36 to the left as during a 53. During a subsequent stripping operation,
stripping operation, there is provided as shown in however, the crosshead 63 will reengage piston 53
Fig. 4 a pair of hydraulically operated rams and to push the same inwardly against the air pres
cylinders 65 and 66 secured to opposite sides of sure therein. In the position of the piston 53 as
platen l I. The rams are connected by rods 61 to shown in Fig. 2a, su?icient clearance is left be
tween the mold 52 and retainer collar 56 to per
cars 63, Figs. 3 and 4, secured to the unit struc
mit said frictionally induced movement.
ture 36.
I
Pressure in the large end of main cylinder i3
Operation
is
transmitted through a pipe 33 to a pressure
The pumping ?uid connections as diagramma
tically shown in Fig. 6, and also certain improved ’ responsive piston 34 which raises upon occurrence
a predetermined pressure in the main cylinder
functional and structural aspects of the invention, of
ill to engage a link 35, thereby releasing both
will be more readily apparent from a description
latches 3i and 85' through stop nuts 36 and a
of the sequence of operations. In the position of pivotal
connection 91 between link 35 and latch
the parts as shown in Fig. 6, the plunger 33 is in
its rearmost position and mold casing” is in 35'. Thereupon both valves 33 and 35 are raised
initial telescopic relation with closing plunger 54. ‘by constant air pressure supplied from any suit
Assuming that the press is to be operated through able'source to the under side of servo-motors ‘I3
one cycle and then stopped, the normal position and 33. This places the stripper cylinders 65 in
operation by supplying pump ?uid thereto
of cam follower 13 would be down out of en
gagement with the cam 15 secured to main ram throughv pipe 34, valve 35 and a pipe 33, where
air cylinder 53. Air pressure is maintained in
'
45
50
55
20, this disengagement being effected by with
drawal of a wedge member ‘I2 which is shifted by
65 clockwise rotation of- a hand lever ‘I6. Hence to
start the press, hand lever 16 is ?rst moved coun
terclockwise to thrust wedge member ‘I2 between
a valve stem 14 and follower ‘I3, thereby causing
follower 13 to engage cam 15 and simultaneously
70 move valve stem ‘I4 and its control-valve ‘ll down
wardly. With valve ‘II in its down position, air
40
45
50
7
upon mold 52 together with the remaining ele
ments of unit 36 is moved to the left, Fig. 2a,
thereby stripping the briquette 3| from mold 52,
it being understood that compressing plunger 33
atlthis time is fully within the mold 52 to serve
as a stop against which the briquette reacts when
pushed out of the mold. vThe plunger 33,. in serv
ing as a stop during the stripping operation, is 70
not necessarily stationary during this operation
from any suitable source pipe 11 is admitted . because when valve 35 is unlatched, the pullback
through a pipe 13 to a servo-motor air cylinder chamber 33 is exhausted, through pipe 33 and
‘I3, thereby moving a valve 63 to a down position port 3501, simultaneously with exhausting of ?uid
75 in which‘it is automatically held by a pivotal " from the smaller main operating ‘cylinder 23 7|
3
2,1 more
' through valve 80 and one of its exhaust ports 80a lower spacer members ‘I and 8 while pistons III
and with exhausting of ?uid from main cylinder ' are provided- with suitable shoulders H2 to limit
I0 through a ?lling check valve I03 to be de
scribed later.v Because of the absence of any
pressure in the main cylinder for resisting the
rearward stripping force, it is seen that the com
pressing plunger may move rearwardly under this
force depending upon the rate at which ?uid is
pushed out of the mainv cylinders 28 and Ill
the extent of outward movement. The pistons
have abutting engagement with any suitable
portion of the untary structure 36 to normally‘
bias the same to the
the mold by plunger
and mold unit 36 is
moved further to the
right to effect ‘closure of
54. The plunger casing
adapted, however, to be
right under the influence
'10 through the usual passages in valves 80 and I03. ' of frictional contact between the briquette and
10
The stripping movement of mold 52 to the
left continues until a cam I 00, suitably support-_
ed on the unit casing structure 36, engages and
depresses a valve m, whereupon air pressure
15 from a suitable source is admitted to the top of
servo-motor 98, thereby moving valve 85v to its
the walls of the mold, entirely independently of
pistons HI whose ?anges “2 limit the action of
the pistons. It will be understood that ‘these
air operated pullback piston and cylinders take
the place of the single pullback cylinder 58 in 15
the preferred form shown in Fig. 2a together
down position in which it is automatically held ‘ with the elimination of the side rods SI and 62
by latch 85'. During this latching operation, and crosshead 60 thereby providing a more com
rod 95 moves freely downwardly through latch
20 8!, the nuts 96 moving away therefrom to pro
vide a lost motion connection for subsequent op
eration of latch ill. The stripper cylinders 65
are now opened to exhaust through port 85b of
valve 85. and simultaneously pump pressure is
25 admitted from pipe 84 to pipe 88 and pullback
cylinder 30, thereby withdrawing plunger 33 to
its rearmost position to restart the next cycle of
operation. When the stripping operation is com
plete, briquette 9| falls from the end of mold
30 52 into any suitable receptacle or conveyor. Also
upon release of operating pressure from the
stripping cylinder 65, air piston 59 will imme
diately move the unit 36 to the right until mold
52 has partial telescopic engagement with back
35 ‘ing plunger 56 preparatory for the next compress
ing operation. The extent of initial telescopic
engagement with mold closing plunger 54 is de
termined by engagement of piston stop 59' with
its cooperating shoulder on cylinder 58. Simul
40 taneously with supply of pump pressure to the
pullback cylinder, pump pressure is supplied
through pipe 86 to a pipe I02 (valve' 83 now being
in its upper position) to raise a pilot piston of a
?lling check valve I03 and open the same to al
45 low free flow of ?uid from cylinder lllpast ?ll
ing valve I03, as previously mentioned, to a pipe
HM’ and a ?lling tank I 05, thereby facilitating
rapid return of compressing plunger 33.
To effect continuous automatic operation,
50 wedge member 12 is allowed to remain in the
position shown so that when compressing plung
er 33 is fully returned, cam ‘I5, suitably carried
by ram 20, engages follower 13 to depress valve
‘H and admit ?uid pressure to pipe ‘I8 and servo
55 motor 19 to. move valve 80 downwardly, thereby
pact 'machine.
-
From the disclosure herein it is seen that I 20
have provided a briquetting machine that is rel
atively simple and ‘economical in construction,
operation and maintenance and is adapted to ef
fectively compress a briquette with a minimum
number of parts and operating movements there
of. It is also seen that my improved combined
compressing plunger casing and mold casing with
a laterally accessible material chamber therebe
tween, insures not only a rugged and simpli?ed
structure but also one in which the various ele 30
ments are positively maintained in alignment
at all times. The spacing members between the
stationary platen and cylinder structure provide
. an extraordinarily rigid base support upon which
the unitary hopper and casing structure 36 may 35
be effectively longitudinally guided. These var
ious advantages are coupled with my improved
hydraulic operating means and the control-sys
tem for effecting a predetermined sequence of
operations with minimum loss of time and with
maximum effectiveness.
-
40
It will of course be understood that various
changes in details of construction and arrange
ment of parts may be made by those skilled in
the art without departing from the spirit of the
45
invention as set forth in the appended claims.
1. A briquetting machine comprising, in com
bination, a compressing plunger, an opposed
mold closing plunger, a unitary structure having ~
a compressing plunger casing andv a mold cas
ing with a laterally accessible material receiv 50
ing chamber between the same, means for eifect
ing relative telescopic movement between said
closing plunger and mold casing to close the
latter, hydraulically actuated means for mov 55
ing said compressing plunger forwardly through
said material chamber and into said mold to
to connect control pipe I02 to exhaust pipe 80b‘
with consequent reclosing of'?lling check valve
l03._ Simultaneously therewith pipe 86* is con
form and compressya briquette, and hydraulically
nected to pipe 81 for supplying pump ?uid to small
60 main cylinder 28 thereby to automatically re
peat the cycle of operations, all as heretofore
' disclosed. If it is desired to stop the press when
actuated means for rearwardly moving said mold
casing to effect a stripping action by having» the 60
briquette bear against the compressing plunger,
said means for effecting relative movement be
plunger 33 is withdrawn, handle ‘I6 is moved tween the mold casing and mold closing plunger,
clockwise to remove wedge 12 from between valve ‘including means for bodily moving said unitar
65 stem 14 and follower '13, thereby preventing cam structure to e?ect said closing relation.
‘I5 depressing valve H which will be consequent
2. A briquetting maching comprising, in com 65
ly held in its upper position by a spring‘or other bination, a compressing plunger, an opposed mold
suitable biasing means. With the valve ‘H in closing plunger, a unitary structure having a
its upper position, pipe 18 is connected to exhaust compressing plunger casing and a mold casing
70 I09, thereby allowing valve 80 to be held in its with a laterally ‘accessible material receiving
upper exhaust position by the. constant pressure chamber between the same, means for effecting 70
below servo‘ piston ‘I9.
'
relative-telescopic movement between said clos
Fig. 7 mOdi?catiom-Jn this arrangement, air ing plunger and mold casing to close the latter,
cylinders HG are suitably supported upon any hydraulically actuated means for moving said
stationary part of the press frame such as the compressing plunger forwardly through said ma
75
4
2,110,972
terial chamber and into said mold to form and
compress a briquette, hydraulically actuated
means for rearwardly moving said mold casing
to effect a stripping action by having the bri
quette bear against the compressing plunger, and
means for supporting said mold closing plunger
in a stationary position at all times, while the
means for effecting relative movement between
the mold casing and closing plunger includes
10 means for bodily moving said unitary structure
to effect said closing relation.
3. A briquetting machine comprising, in com
bination, a compressing plunger, an opposed mold
closing plunger, atunitary structure having a
15 compressing plunger casing and a mold casing
with a laterally accessible material receiving
chamber between the same, means for e?ecting
relative movement between said closing plunger
and mold casing to bring the same into initial
telescopic relation, hydraulically actuated means
for moving said compressing plunger forwardly
through said material chamber- and into said
mold to form and compress a briquette, and hy
draulically actuated means for rearwardly mov
25 ing said mold casing to effect a stripping action
by having the briquette bear against the com
pressing plunger, said mold casing and closing
plunger having provision to allow further tele
scopic movement induced by frictional contact
30 between the briquette and mold during compress
ing of the briquette by the compressing plunger.
stripping action by having the briquette react
against the compressing plunger, and means for
initially moving said compressing plunger rear
wardly during said stripping action but at a
slower rate 01 movement than that or said uni
tary structure.
'
8. A briquetting machine comprising, in com
bination, a compressing plunger, a stationary
mold closing plunger, a unitary structure having a
compressing plunger casing and a mold casing 10
with a material chamber between the same, means
for moving said unitary structure forwardly to
close said mold casing by its closing plunger,
means for moving said compressing plunger
through said material space and into said mold 15
casing to form and compress a briquette, means
for moving said unitary structure rearwardly
to effect a stripping action by having the bri
quette react against the compressing plunger,
and means for initially moving said compressing 20
plunger rearwardly during said stripping action
but at a slower rate of movement than that of
said unitary structure and after the stripping
action is completed to e?ect a relatively rapid
rate of rearward movement oi.’ the compressing 25
plunger.
9. A briquetting machine comprising, in com
bination, a compressing plunger, a stationary
mold closing plunger, a unitary structure having
a compressing plunger casing and a mold casing 30
with a material chamber between the same, air
4. The combination set forth in claim 3 fur
ther characterized in that said means for initial
actuated means for moving said unitary struc
ture forwardly to close said mold casing by its
ly effecting relative telescopic movement between
closing plunger, hydraulically actuated means for
moving said compressing plunger through said
material chamber and into said mold casing to
35 the mold casing and its closing plunger includes
air operated piston and cylinder mechanism.
5. The combination set forth in claim 3 fur
ther characterized in that said means for initially
e?ecting relative telescopic movement between
40 the mold casing and its closing plunger includes
air operated piston and cylinder mechanism, and
means for limiting the extent of operation of
said air operated mechanism thereby to estab
lish said initial degree of telescopic relation.
6. A briquetting machine comprising, in com
45
bination, a compressing plunger, a stationary
mold closing plunger, a unitary structure having
a compressing plunger casing and a mold casing
with a material chamber between the same,
50 means for moving said unitary structure toward
said mold closing plunger so that the ‘same is tel
escopically received in said mold casing to close
35
form and compress a briquette, hydraulically
operated pullback mechanism for said compress
ing plunger, hydraulic means for moving said
unitary structure rearwardly upon a completion
of a compressing operation thereby to effect a
stripping action by having the briquette react
against the compressing plunger, and means for
relieving hydraulic pressure in said hydraulically
actuated means and in said pullbacklmechanism 45
during said stripping operation.
10. A briquetting machine comprising, in com
bination, a compressing plunger, a stationary
mold closing plunger, a unitary structure having
a compressing plunger casing and a mold casing 50
with a material chamber between the same, air
actuated means for moving said unitary structure
‘forwardly to close said mold casing by its closing
plunger, hydraulically actuated means for moving
said compressing plunger through said material 55
55 said material chamber and into said mold casing
the same, hydraulically actuatedv means for mov
ing said compressing plunger forwardly through
to form and compress a briquette, hydraulically
actuated means for moving said unitary struc
turerearwardly to effect a stripping action by
having the briquette react against said compress
ing plunger, and means whereby said compress
ing plunger is initially moved rearwardly at a
slower rate than the movement of said unitary
structure.
7. A briquetting machine comprising, in com
65 bination, a compressing plunger, a stationary
mold closing plunger, a unitary structure having
a compressing plunger casing and a mold cas
ing with a material chamber between. the same,
means for moving said unitary structure for
70 wardly to telescopically receive said closing plunger‘
er and thereby close said mold casing, means
for moving said compressing plunger through
said material space and into said mold casing to
form and compress a briquette, means for mow
' ing said unitary structure rearwardly to e?ec't is
chamber and into said mold casing to form and
compress a briquette, hydraulically operated pull
back mechanism for said compressing plunger,
hydraulic means for moving said unitary structure
rearwardly upon a completion of a compressing 60
operation thereby to e?ect a stripping action by
having the briquette react against the compress
ing plunger, means for relieving hydraulic pres
sure in said hydraulically actuated means and in
said pullback mechanism during said stripping 65
operation, and means for supplying operating
fluid to said pullback mechanism substantially
upon completion of the stripping operation there
by to eiiect rapid withdrawal of the compressing
plunger to its original starting position.
70
11. A briquetting machine comprising, in com
bination, a compressing plunger, a casing there
for, an opposed mold closing plunger, a mold cas
ing therefor, means forming a material chamber
between said casings, means for e?ecting rela
5
2,1 10,972
tive movement between said closing plunger and
mold casing to close the latter, hydraulically ac
tuated means for moving said compressing plung
er forwardly through said material chamber and
into said mold to form and compress a briquette,
hydraulically actuated means for moving said
mold casing rearwardly to strip a briquette there
from, hydraulically actuated means for moving
said compressing plunger to its rearward posi
10 tion, and hydraulic control means for eil’ecting a
predetermined sequence of operations of all of
said actuated elements so as to form and com
press the brlquette, initially relieve the compress
ing force on the brlquette and then strip the same
15 and return the elements to their original starting
position.
to all of the hydraulically actuated means, in
cluding connections between the hydraulic control
means and said pump.
'
,
16. A briquetting machine comprising, in com
bination, a compressing plunger, a casing there
for, an opposed mold closing plunger, a mold cas
ing therefor, means forming a material chamber
between said casings, means for effecting rela
tive movement between said closing plunger and
mold casing to close the latter, hydraulically ac 10
tuated means for moving said compressing plung
er forwardly through said material chamber and
into said mold to form and compress a briquette,
hydraulically actuated means for moving said
mold casing to strip a briquette therefrom, hy 15
draulically actuated means for moving said com
\
12. The combination set forth in claim 11 fur
ther characterized in that the means for eifecting
relative closing movement between the mold cas
20 ing and its closing plunger comprises a constant
ly operative biasing means. e
13. A briquetting machine comprising, in com
bination, a compressing plunger, a casing there
for, an opposed mold closing plunger, a mold cas
25 ing therefor, means forming a material chamber
between said casings, means for effecting relative
movement between said closing plunger and mold
casing to close the latter, hydraulically actuated
means for moving said compressing plunger for
wardly through said material chamber and into
said mold to form and compress a briquette, hy1
draulically actuated means for moving said mold
casing to strip a briquette therefrom, hydraulical
pressing plunger to its rearward ‘position, hy
draulic control means for e?’ecting a predeter~
mined sequence of operations of all of said actu- ‘
ated elements so as to form and compressthe 20
briquette, strip the same and return the elements
to their original starting position, said hydraulic
actuating means for the compressing plunger
including a main cylinder and a hollow ram
therein, a stationary ram disposed within said 25
hollow ram, means whereby said compressing
plunger is initially moved forwardly by ?uid
pressure supplied to said hollow ram, and means
responsive to a predetermined pressure in said
hollow ram for automatically supplying ?uid 30
pressure to said main cylinder to effect a ?nal
movement of the compressing plunger.
' 17. A briquetting machine comprising, in com
ly actuated means for moving said compressing
bination, a horizontal base structure, a stationary
plunger to, its rearward position, hydraulic con
platen secured to one end thereof, a main oper 35
trol means for ell’ecting a predetermined sequence ating cylinder and ram mechanism secured to
of operations .of all of said actuated elements so the other end of said base, a compressing ‘plung
as to form and compress the briquette, strip the er actuated from‘ said main cylinder, an opposed
same and return the elements to their original -_ mold closing plunger supported by said stationary
starting position, and means for automatically platen, a unitary structure having a compress
repeating the cycle of operations when all of the
elements are returned to their original starting
position.
14. The combination set forth in claim 11 fur
45 ther characterized by the provision of means for
automatically repeating the} cycle of operations
when all of the elements are returned to their
original starting position, or for e?ecting only a
single cycle.
50
.
.
15. The combination set forth in claim 11 fur
ther characterized by the provision of a constant
ly operating pump for supplying ?uid pressure
ing plunger casing and a mold casing with 9. lat
erally accessible material receiving chamber be~
tween the same, means for longitudinally slidably
supporting said unitary structure directly on said
base, actuating means for moving said unitary
structure toward said mold closing plunger to
close the mold and for moving said structure
rearwardly to strip a briquette against said com
pressing plunger, and means for controlling the
operation of said mean ram so that it may be
withdrawn following said stripping action.
RICHARD W. DlNZL.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 050 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа