US1518362A - Baling press - Google Patents

Description

Dec. 9, 1924. 1,513,362

. W. H. SALLWASSER BALING PRESS ATTORNEY Deg, 9, 1924. 1,518,362

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Dec.y 99 192,4; 1,518,362 W. H. SALLWASSER BALING PRESS Filed March 27, 1924 3 Sheets-Sheet 5 /35 v 35 INV-'EN TOR. umg :www

fm ww A TTORNEY UNITED STATES PATENT- QFFICE.

WILLIAM H. SALLWASSER, OF GHICAGO, ILLINOIS.

BALING PRESS.

Application filed March 27, 1924. Serial No. 702,265.

To all whom it may oon-cern.'

Be it lrnown that I, Timm-nr Il. SALL- wnssnn, a` citizen of the United States of America, and resident of Chicago, in the county of Cool; and State of Illinois, have invented new and useful Improve-ments in Daling Presses, of which the following is a description, reference being had to the accompanying` drawings, which are a Vpart of this specification.

The invention relates to baling presses.

The object of the invention is to provide a hailing press of the doorless type and which permits of a ready and eliicientforming of the bale by the use of two platens with a stationary open-ended press box.

In carrying out my invention, I malle use of a stationary box, preferably vertically disposed and open at the top and bottom and mounted so that the top, through which it is filled, is located at the level of one. of the floors of the building in which the press is used.

Not only is the box stationary but it has no movable doors or other parts requiring hinges, locks and operating devices; the `only movable parts being in the preferred embodiment herein shown, a platen within the box forming vertically movable bottoni which acts both as a pressing element and as an ejector, and a vertically movable platen above thc. box; material to beba'led being compressed within the box between these two platens and bei ng thereafter moved out of the box while held by the platens so that the bale may be bound.

In one form of the invention herein hmm, the material is. placed in the box from the floor in which the top of theI box is located, and the work of filling the press is' thereby lightened and capable of rapid performance; and in another form herein shown the closure platen isv adapted to be moved from its carrying frame so that the prcss may bc filled from the upper floors by chuting directly to the press box.

Fur-

thermore, because the finished bale is raised directly out of the top of the boi( and need only be tipped laterally off the lower platen, no doors being required to be opened, the worl of removing the finished bale is also light and quickly performed.

The p-latensv are moved or held by suitable power devices, preferably hydraulic in their nature, and so controlled that the operation of the, press is simple, rapid, and with the expenditure of minimum power.

Furthen more, the various steps in the operation of the press are so carried out thatl while a high pressure fluid is required to compact the materia-l to form bale, this high pressure need not be continued for ejecting the bale, but the bale may be ejected when formed at a low pressure.

This application is a continuation in part of my co-pending application Serial No. 586,562, filed September 7, 1922.

The various features of novelty whereby my invent-ion is characterized will herein-- after be pointed out with particularity in the claims, but for a full understanding of my invention and of its objects and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawings wherein:

Fig. l is a front elevation of a press embodying the invention, shown open, the hydraulic controlling, actuating mechanism being illustrated diagrammatically;

F ig. 2 is a. vertical section on a plane parallel with the side shown in Fig. l, the piping being omitted;

Fig. 3 is a view similar to Fig. 2 showing the contents of the press compacted into a Fig. 4 is a view similar to 2 and 3. showing the completed bale in' its ejected position;

Fig. 5 is a section through the controlling valve, being taken approximately on line 5'-5 of Fig. l, on a larger scale;

Fig. 6 is a front view of the control valve;

Fig. 7 is an end view of the control valve;

Fig. 8 is a viewsimilar.' toA Fig. l, with. the piping omitted and showing a removable upper platen; i

Fig. 9V is an end view of the press shown in Fig. 8;

Fig. l0 is a detail of the lock for the movable upper platen.

Referring to the drawings, l represents a box, conveniently rectangular in cross-seow tion and open at the top and at the bottom. In this arrangement, the bo);v is provided with corner posts 2 extending downwardly to form supporting legs and extending upward-ly to form guides. The box is supported conveniently by permitting the legs to rest upon a suitable base or fioor so that the upper end is flush or level with the floor 3 of the room or compartment containing the material which is to be baled. In Figs. 8 and 9 the press box l' is' suitably supported from uprights 2 which connect with a top l'rarne and guide 2" adjacent the Hoor 3.

In each instance a pressing platen 4c is mounted in the box to move lengthwise of the same and forms an eliective closure for one end of the box, which in the case of a vertical press is its bottom. A second platen 5 or 5 forms a closure for the other end of the box and in the case of a vertical press is mounted above the top of the box. In Figs. 1 to t, inclusive, this upper platen 5 is guided in its movements by the upwardlyprojecting corner posts 2 of the boX, while in Figs. 7 and 8 the platen 5 is separate from its supporting frame, which includes an open top frame 30, side members 3l, one at each corner of the frame 30 and mounted to slide in suitable openings in frame 2l and tracks 32 carried by said side members upon which the rollers 33 on the platen 5 run, said platen 5 being movable from its supporting frame onto stationary tracks 34 alined with the tracks 32 when the press is ready for filling so that material from the floor 35 above the press may be fed therefrom through a chute 36 directly to the press box through the opening in the frame 30. lVhere such movable platen 5 is used locking means are provided to hold it against movement relative to its frame during the operations of the press and as here shown in Figs. 9 and l0,

this locking means consists of a latch 37 pivotally mounted intermediate its ends on one of the members 3l and provided with a forked end 38 engageable with a part of the platen which, in this instance, is the extended end 39 of one of the roller supporting shafts. i i

I have illustrated my invention as operated by hydraulic pressure and, for thesake of brevity, I shall confine the detailed description to this type, which is the'preferred one; although it may be understood that in some aspects of my invention other power mechanism may be used.

The lower platen l is in each instance carriedl on the upper end of a long plunger G forming part of a hydraulic ram 7. The upper platen 5 is supported on the upper ends of piston rods 8 while the upper platen 5 has its side members 3l connected in pairs to cross-heads 4 0 supported on the upper end of piston rods 8. As shown more particularly" in Figs, 2 to 4, inclusive, each piston rod 8 has a piston 9 on its lower end working in a hydraulic cylinder 10 suitably supported on or adjacent to the press box.

'When the press is ready for filling, the lower platen will be at the lower end of the box and the upper platen or its supporting frame should be at the upper limit of its movement, as shown in Figs. l, 2, 7 and 8. The material to be baled is then shoveled, chuted or drawn into the upper end of the press box until the same is filled, as indicated in Fie', 2D the baling iruiterial being indicated at Il, and in the case of the removable platen 5 the same is preferably moved on the track 34C to permit direct chuting ot the material from the floor above into the press box and is then returned to its operative position and locked to its supporting frame. Then, in each instance, the closure platen 5 or 5 is moved to form a closure for the top of the box, as shown more particu larly in connection with the platen 5 in Fig. 3. lhile the upper platen 5 or 5 is held in its lowered position the platen fl; is moved up until the material has been conipressed to the desired extent to form a bale between the platens, as shown more particularly in Fig. 3. After the bale has been formed both platens, in each instance, are moved up in unison, as shown in Figs. t and 9, the upper surface of the lower platen being now a short distance above the floor level. The bale-engaging portions of the platens are provided with the usuul grooves 1 1 for receiving the tie wires 12 which may be fastened. around the bale, as shown in Figs. l to 9, while the bale is still being gripped between the platens. ThereH after the lower platen 4 is lowered slightly while the upper platen is held raised, thus releasing the bale. and permitting it to be pushed laterally off the lower supporting platen.

After the bale has been removed the lower platenis dropped to the bottom of the box and in the case of the removable platen 5 the platen is moved onto its track at one side of the press so as to place the press in condition to receive a new charge.

Power is supplied by a suitable pump 13 preferably of the compound type so that a high pressure may be attained when needed while at other times the motive fluid will be at low pressure. rlhe suction side of the pump is connected to a suitable tank lll by means of a pipe l5. The discharge side of the pump is also connected to the tank through a suitable valve device '16. pipe 1'? leads from the valve devire to the lower ends of the cylinders 10. The upper ends of these cylinders are connecte-id together and to the lower end of the rain h v means of a conduit 1,3 between which and the valve device is arranged a pipe lf). '.lhe valve mechanism may he ot an)v usual or suitable construction. ln the drawings l have illustrated comf'entionally au ordinary three-spindle valve connected in a typical way with the pump and tank. In this valve mechanism are three independent valves, 20. 2l and 22, slidably mounted in cylindrical passages 23, 24- and 25 in the body member 26 of the valve. The three passages are connected by a transverse passage 2". The pipe 17 is connected to the passage 23 at the intersection of the latter with the ldd llfi

1,5 ls-,see 3 transverse passage. The pipe 19 is connected to the passage at the intersection ot' the latter with the transverse passage- The discharge pipe 28 ot' the pump is connected to t-he passa-ge 24 at the intersection ot' the latter with the transverse passage. The passage 24 is connected tothe tank la by means oi a pipe 29 ope'iiing into the passage 2l at 'sonre distance tron-1 'the point et conn'ection with the pipe 28. The va es 2() and 22 are so constructed that each i ill in one position connect the corresponding pipe with the transverse passage 2T whileits. other position it will shut oli comnninication between its corresponding pipe and the transverse passage. The valve 21 is so constructed. that in one position it will close the waste pipe 29 while in another position it will open communication between the waste pipe and the transverse passage.

ln Fig. 5 'the valves are shown in the position which they occupy when the press is in the condition shown in Figs. 1 and 2, at which time the valve 22, being closed, prevents fluid from passing from Vthe pump into the pipe 19, that is, into the ram 'and the ripper ends of the cylinders. Assuming the pump to be working, it will be 'seen that fluid will How through the disch-arge pipe of the same into the passage 24 and thus through the transverse passage to the pipe 17 so that pressure is maintained underneath the pistons 9 and the upper platen is caused to be held raised. Alter theV box has been filled, the valve 2l is shifted in the downward direction, as viewed in Fig. 5, placing the transverse passage in communication with the waste pipe. The water will now flow out of the lower ends oi the cylinders 1() into the tank and the upper platen will drop by gravity into the position shown in Fig. 3; the lower platen still being in the position shown in Fig. 2. The valve 20 is then shifted so as to close the pipe 17 and the valve 22 is moved into position to connect the pipe 19 with the transverse passage. Then, as soon as the valve 21 is returned to the position shown in Fig. 5, the water will tlow trom the pump through the valve device to the pipe 19 and from there tothe conduit 18, the upper ends oi" the cylinders, and the lower end ot' the rain. The parts are so proportioned that the combined elifectiv'e areas on the upper sides of the pistons equals the cross-sectional area of the plunger of the ram. Consequently, the same amount of pressure will be exerted by the hydraulic devices, tending to push the lower platen up and torce the. upper platen down to closed position. As the upper platens movement is limited, as by engagement with the press box, as soon as the fluid pressure Vbecomes great enough the lower platen Will rise, pressing the contents of the box between the same and the upper platen which remains statiol'ilary. This movement of the lower platen is allowed to continue until the Acontents `oftI the box have been sufficiently compacted, the condition represented by Fie'. 3. The valves `are then returned into vthe position illustrated in llig. 5; the pipe being `closed so that none of the fluid in the upper ends of the cylinders or in the 'ra-m can escape to the tank; and the valve 20 being in its open positron `so that water will flow from the pump into the pipe 17 fand troni there into the lower ends of the cylinders. It will be seen that the upper ends ot' the cylinders and the ram `are new connected in 'what may be termed a closed system. Consequently, when pressure is exerted on the under sides et the pistons the istons begin to travel upwardly, forcing tie motive tluid out of the upper ends of the cylinders. This motive fluid, 'escaping trom the upper ends ot the cylinders, consequently t'ran-sterred to the ram, the plung- 'er of the ram being forced to 'rise at a rate sutlicientrto provide space for the incoming water. On account of the tact that the cross-sectional area of the ram equals the combined effective areas of 'the upper sides of the pistons, just enough water will be displaced by the pistons to cause the ram to rise at exactly the same rate as the pistons. ln other words, the upper platen will be lifted directly by the pressure 'underneath the pistons, while the lower platen will be lifted in unison therewith by the motive iluid discharged vfrom the upper ends of the c'ylrinders into the ramt This movement coirt-lnues until the condition illustrated in il is reached, the upper platen being at the upper limit of its movement, and the lower platen projecting above the floor level. After the balewhich has thus been ejected tromthe box has been 4wired, the valve 22 and the f'alve 21 are opened, while the valve 20' is closed, 'permitting the water to drain out of the ran-l and thus causing the ram lo descend by gravity. The upper platen is still held up and the descent ot the lower pla-teu is Chee-lied ar't'ter a. suiiicient distance has ybeen traveled to permit the bale to be freely remolf'cd. After the bale has been removed the draining ot the am is continued until the lower platen reaches the position shown in Figs. 1 and 2; the box being again lille'dl and the cycle just described repeated.

It will be seen that a high pressure is required only during the compacting of" the material to form the bale, while the work of lifting the bale from the position shown in Fig. 3 to that shown in Fig. 4l requires only sufficient pressure to raise the weight of the moving parts and the bale against the action of gravity and to overcome the slight resistance ofl'ered to the transfer ot the motive fluid from the upper ends of the cylinders to the ram; and consequently this last step may be performed b y motive fluid at a low pressure without loss of speed in operation. Therefore, if an automatic compound pump be used the pump will automatically adapt itself to changing conditions requiring in the one case a high pressure and in the other case a low pressure.

I de not desire it to be understood that this invention is not to be limited to the exact structural details illustrated and described, as I intend to cover all forms and arrangements which come within the terms employed in the definitions of my invention constituting the appended claims.

` That I claim as my invention is 1. In a baling press, the combination of a box open at the top, a vertically-movable platen arranged in and forming the effective bottom of the box, a vertically-movable platen arranged above and adapted to form a closure for the top of the box, power devices acting on said platens to move the same, and means for controlling said power devices to cause them to hold the upper platen raised independently of the lower platen, to cause the Lipper platen to be held in its lowered position while the lower platen is moved up to compress the contents of the box between the same and the upper platen, and to cause both platens to rise together to carry the compressed contents of the box out of the upper end of the box.

2. In a baling press, the combination of a stationary boX having relatively immovable side walls and open at the top, a vertically-movable platen arranged in and forming the effect-ive bottom of the box, a vertically-movable platen arranged above and adapted to form a closure for the top of the box, power devices acting on said platens to move the same, and means for controlling said power devices to cause them to hold the upper platen raised independently of the lower platen, to cause the Lipper platen to be held in its lowered position while the lower platen is moved up to compress the contents of the box between the same and the upper platen, and to cause both platens to rise together to carry the compressed contents of the box out Vof the upper end of the box.l

3. In abaling press, the combination of [iii form a closure for the top of the box,

hydraulic devices associated with said plats ens to actuate the same, and means for controlling the delivery and discharge of iluid to said devices to permit said platens to move up and down independently of each other or to produce a transfer of iiuid from the devices associated with the upper platen to the device associated with the lower platen so as to cause both platens to rise when the upper platen is raised.

4i. In a baling press, the combiinition of a box open at one end, a pressing platen working in said box, a closure platen adapted to form a closure for the openv end of the box, power devices acting on said platens to move the same, and controlling devices acting on said platens to hold the closure platen in open position, to cause the closure platen to be held in its closing position while the pressing platen is moved toward said closure platen to compress the contents of the box between said platens, and to cause both platens to move together to carry the compressed contents of the box out of said open end.

5. In a baling press, the combination of a press box open at the top, a vertically-movable platen arranged in and forming the effective bottom of the box, a verticallymovable closure platen to form a closure for the top of the box, a vertically-movable open-ended supporting frame for said closure platen from which said platen is removable, means for holding said closure platen in olrierative position on said frame,v power devices to move said platens, and means for controlling said power devices to cause them to hold the upper platen raised independently of the lower platen, to cause the upper platen to be held in its lowered position while the lower platen is moved up to compress the contents of the box between the same and the upper platen, and to cause both pla-tens to rise together to carry the compressed contents of the box out of the upper end of the bex.

In testimony whereof, I aiix my signature.

WIT/'Lirical' Il. Siti ,l Al. A SH llit.

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