US2503354A - Baling press - Google Patents

Description

April E950 o. T. QUINN, SR 2,503,354

BALING PRESS Filed Dec. 5l, 1946 '7 Sheets-Sheet l /l T TORNE Y April 11, 1950 o. 'i'. QUINN, SR 2,503,354

BALING PRESS Filed Dec. 51, 194e 7 sheets-sheet 2 A TTOR/VE V April 1l, 1950 o. T. QUINN, SR 2,503,354

BALING PRESS Filed Dec. 31, 1946 '7 Sheets-Sheet 5 INVENTOR. /F//V THOMAS QU/NA/ 5f:

A 7" TORNE Y O. T. QUINN, SR

April H, 1950 BALING PRESS '7 Sheets-Sheet 4 Filed Deo. 5l, 1946 l f f l 1 l u l 1 f 1 1 I f 1 f I n 4 /r '7 Sheets-Sheet 5 AMEN!!! April 11 1950 Filed Dec' IML April 1l, 1950 o. T.YQU|NN, sR

BALING PRESS Filed DSC. 31, 1946 7 Sheets-Sheet 7 'llllllll'lll l nllIl-nll I N VEN TOR. //V THOMAS (2U/NN 5l.'

A T TOP/VE V which operates theprimarylpressure platen;

Patented Apr. 11, 1950 UNITED gSTATES '-PATENT oFEl-.CE

A BALING PRESS Orion Thomas Quinn, Sr., Los Angeles, Calif., as-

signor, by mesne assignments, to vApex Steel Corporation, Ltd., Los Angeles,fCalif., a corporation offNevada Application December 31, 1946, Serial No. 719,474

This invention pertains to a baling press adapted to compress Waste papen'cotton waste, rags, cork chips, metal cuttings, scrap metal and various other materials'into consolidated or compressed bales Which are then strapped or bound in the usual manner. The invention is spec-iiically directed to improvements in baling presses, among such improvements being simple and efflcient means for opening and closing the rvupper portion of the charging box so asf vtok permit -the charging box to be readily filled and thepressed material readily removed from thefpress.

ployed in compressing the material Withinthe 20 press. f v

In addition, the invention relates t^-anim proved construction-relating to` the upper or' ordinarily stationaryhead f against which thematerial is compressed. 'In accordancev Withxthis25 invention, means vare :provided `for 'moving the headinto and out orp'ositionover the end of the charging boX and' su'chhead-moving means are interconnected with the mainhydraulic' system Ordinarily, a baling pr'esseonsists ofavertical charging bei; into'whioh the material to be compressed 'is placed; Inmost'finstancesth'e Vhead of the' charging boxy is-Stationary. A 'portion of the well of the charging box is made removable, l constitutinga fdoor through `which thematerial to be ycompressed may .be-admitted.v v4Various usual meansior holdingthedoor in positioninvolved Wing nuts,lag-bolts,-. and Y-the '-like, and a considerable amount-A of timenwas consumed in certain that the door .would yhold-against-the -internal pressure of the material `duringcompression.

The usual stationary head, moreover, 'made it.

`impossible to lill ythe box from yan upperlevel.

Claims. (Cl. 100-19) 'opening and 'in-A closing `:the door and in. making machine.

door-locking means,v and the head-moving means. Furthermore, the preferred hydraulic system employs the static head of the ram and bale in'positively releasing the head-moving means and 'in releasing the door-locking mechanism.

It is an object of the present invention, therefore, to disclose and provide an improved baling A further and more specific object of thefinvention is to disclose and provide novel and eflicient door means and door-locking meansfor the charging box of a baling press.

vA still further object is to disclose and provide a baling press provided with an hydraulically -operated movable head.

These and other objects and advantagesof the present invention will become apparent to those skilled 'in the art from a detailed description of an illustrative embodiment inwvhichi the "inven- 'tions have been incorporated. Inlsuchdes'cription, reference will be had .to the appended drawings, in which:

Fig. 1 is a front' elevation of the entirebaling press.

Fig. 2 is a side elevation thereof.

Fig. 3 is a schematic, isometric piping'diagram of the pressure fluid actuating system.

Fig.v 4 is a horizontal section taken approximately along the plane IV-IV of Fig.V 1, showing the doors in closed'position.

Figs 5 and 6 are horizontal sections taken'. on broken line VI-VI of Fig. 7 illustrating the position of the parts with the doors open'and closed, respectively.

Fig. '7 is a side elevationof the door-closing mechanism, portions thereof being Vbrokenaway.

Fig. 8 is a plan view of the movable head.

Fig, 9 is a side elevation of the head showing the position of the parts while a bale is being compressed.

Fig. 10 is a side elevation of the head-in normal position.

Fig. 11 is a side elevation of the head when it hasbeen moved away from the charging'box.

Fig. 12 is a transverse section 'taken along the plane XII-XII of Fig. 10.

Figs. 13 and 14 are sections through thehy- .draulic means which actuate thev head, showing the position assumed by the parts when the head is in open and in iclosed positions, respectively.

As best shown in Figsl and 2,'a baling press is generally positioned between floors of a building or with a large `portion of the press'lwithin a pit having side Walls l. The main body of the press istermed a charging box and includes the are closed (as in Figs. 4 and 6).

front, back and side walls, such as 2 and 3, suitably reinforced to withstand internal pressures. This charging box, generally indicated by the numeral 4, is open at the bottom. In the embodiment shown, the press includes corner posts 5 supported upon a base 6 and extending upwardly into a hollow head, generally indicated at 1. II'his hollow head or head frame is connected to the base 6 as by means of long tie rods 8 nested within the corner posts or corner I end of the charging box and similarly closing the hollow head frame 1.

At an appropriate level, such as the floor level indicated, the sides of the box 4 are provided with doors. In'the instant case the front of the press may be provided with a lowermost door section I5 hinged at I6 and provided with suitable hand-operated locking devices at I1. The main door of the press is indicated generally at v20 and both the front Iand back of the press are Vpreferably provided with such doors 20 and 2|.

By referring to Fig. 4 it will be noted that the f doors 20 and 2I are hingedly connected to the framework of the charging box as at 22 and 22 and each of the doors consists of a main ori `front panel and an end portion lying in a plane transverse to the main panel. These end poi'- tions 23 and 23' are provided with outwardly extending lips 24 and 24', these lips being capable of virtually meeting or contacting when the doorsf' It will be understood that the doors may be suitably reinforced to withstand internal pressures and may be provided with handles 25 and 25 to facilitate lrnanual opening thereof.

In order to hold the doors in closed position,

'24 and 24', thereby holding the doors 2D and 2I in locked position. Such means are preferably 'hydraulic and may include a working cylinder 28 containing a piston (not shown) mounted upon the :pistonr'od 30.

' The piston rod may carry a crosshead Bland links 32 and 32 pivotally mounted thereon, these links being pivotally connected to arms 33 and 33 (as at 34 and 34') ,A the arms being connected to the dogs 26 and 26. It fwill be evident that movement of the piston and piston rod will therefore cause partial rotation of the dogs.A the links 32 and 32' and arms 33 and' 33 virtually forming a toggle to prevent the release of the doors when the doors are inv closed position (see Fig. 6). It will be noted from an examination of this last-named figure thatt'hev links 32 and 32' are substantially on dead center so that a positive movement of the piston and piston rod 30 is required to unlock the doors.

It will be evident that unless a head were provided so as to close the hollow head `frame 1, any material charged into the box 4 vwould be `centrally disposed track or arm 40.

lifted by the pressure platen I0 through the hollow head frame 1. A movable head is provided, this head being generally of C shape in side elevation.

As best seen in Fig. 10, this movable head assembly consists of a lower and main head member 36 and an upper frame 31, the head and frame being held in spaced relation as by means 0f downwardly extending and interconnecting members 38. EXtending rearwardly from the hollow head frame 1 are spaced tracks 39 and a The frame 31l is provided with wheels 4I adapted to run along the tracks'39 and a wheel 42 arranged to run along the arm 40.

The .entire movable head may therefore run along the tracks 39 and 40 from the position indicated in Fig. 11 to the position indicated in Fig. 10. In the closed position (Fig. 10) the head member 36 covers the entire aperture within the hollow head frame 1 and ls immediately vabove the upper edges of the doors 20 and 2l.

In order to facilitate such movement, hydraulic means are provided, such means including the working cylinder 43 carried by the frame 31. Positioned withinthe working cylinder 43 is a piston 44 (Fig. 13) attached to a tubular piston rod 45. Although various forms of hydraulic 'cylinder construction may be employed, the exemplary form includes an outer tubular piston rod element 46 also attached to the piston 44.

The Vouter end of the arm may be provided with-an upstanding'track 41 having a slot 48 Y therein, said slot receiving a transverse pin carried by the tubular member 46 so as to prevent the compound piston rod composed of elements and 46 from moving longitudinally and still permitting such end to move vertically within the slot 48, for reasons which will become apparent hereafter.

A single hydraulic system and a simplied method of controlling the system permit operation of the various elements described hereinbefore. The hydraulic system may be best understood by reference to Fig. 3. As there shown, oil (or other iluid) from a reservoir or surge tank 50 is pumped by pump 5I through a relief valve ..52 and. pressure conduit 53 into the lower end of working cylinder I2 of the ram. The conduit 53 includes a check valve 54 so as to prevent ow of pressure fluid from the working cylinder I2 back into the pump. The relief valve 52 lpermits the pump 5I to recirculate the oil through line 55 whenever excessive pressure is built up in line 53.

A pair' of pumps may be used, one pump 5I being capable of generating pressure up to say 500 pounds per square inch, while the other, s uch as`5lv, may generate pressures up to 2000 pounds Der squarefinch. Both pumps, however, discharge into the working cylinder, pump 5I' feeding into the working cylinder through pressure conduit 53'.

Pressure conduit 53 is connected to line 56 at a point between the working cylinder l2 and the check valve 54. The line 56 communicates with line 51 leading to a four-way control valve 60. A branch line 58 connects lines 56 and 51 with reservoir 50 but is separated therefrom by means of a valve 6I. The valve 6I is normally closed. p

When the four-way control valve 60 is in operating position, pressure fluid supplied by line 51 is discharged from the valve through line 62. Line 62 branches, one of the branches, 63, leading to. working cylinder .28 vof the door-locking mechanism. The other branch, .64, is :connected to the central hollow piston rod 45 .ofpiston 44 in'working cylinder 43 ofthe movable head. When, therefore, the pumps are started so asto compress material :placed into the charging box (as by punching start buttons on a control panel P) pressureuid is sent by line 53 into the bottom of the working cylinder` I2 of the ramv and simultaneously fluid pressure is sentv by lines 56 and 5T through the control valve 60. When the valve is in closed or operating position, fluid pressure is discharged from the valve by line 62 into lines 63 and 64, thereby causing the .piston in working cylinder 28 to move outwardly, thereby rotating the dogs 26 and 26' from the position shown in Fig. 5 into the locking or hold position of Fig. 6. Simultaneously, pressure fluid supplied by line 64 to hollow piston rod 45 is discharged-intoA the-forward end of working cylinder 43. Since the piston rod 45 can not move longitudinally, the working piston itself, together with the entire movable head frame to which it is attached, moves from the `piston shownv in Fig. 11 -to the position indicated in Fig. 10. Fluid contained in the rear or outer end of working cylinder 43 is discharged therefrom as through port 65 into the annular space between hollow rod 45 and tube 46, and returns to the system via line 66 to line 61 and control valve 6U, from whence it is discharged by line 68, the latter being connected to return line 58.

Simultaneously, liquid on the opposite side of the piston in working cylinder 28 is returned to the system by line 69 which is attached to return line 61.

Since the pressure necessary to move the head and frame 36 and 3l, and the door-locking mechanism is relatively low (in comparison with the pressure necessary to actually raise and compress the material within the charging box 4), the head will roll into position and the doors will rbe locked before the ram I2 has risen to any appreciable extent. As the material within the charging box is more fully compressed and high pressures develop within the working cylinder l2 of the ram, greater pressure is similarly exerted in the working cylinders 28 and 43. The doors, therefore, are maintained in closed position more firmly as the waste is compressed.

It is to ybe understood that while the charging box is being filled, the doors l5, 20 and 2| are open and the movable head is in the open position. Material may be placed within the charging box either from dollies and dumped through the open sides or doors of the charging box, or it may be admitted into the charging box through the hollow head frame 1. After a. sufficient quantity of material has thus been placed into the charging box, the lower doors l5 (which are optional) are manually closed. The doors 26 and 2l are closed almost completely by hand, and then the hydraulic system is energized to cause the simultaneous operation of the ram, door-locking means and head-moving means as previously described.

After the material has been thoroughly compressed it will be found that such material has raised the head member 36 a short distance into pressure contact with the hollow head frame 'l as indicated in Fig. 9, wherein the upper edge of the baled, compressed material is indicated at 10. Such upward movement of the head member 36 has also caused the head frame 31 to be lifted. The pumps are then stopped and valve 16| is opened. Pressure within' the hydraulicl system is relieved andk some of the-pressure fluidv is discharged from the working cylinder yI2 by line 56, valve 6l, and returnl line 58, back into the reservoir'll.Y The piston `Il, together with the pressure platen IIL-'slowly drops and as soon 'as pressure on the bale 10 has been relieved in this manner and before the pressure platen lll drops below the level of the charging floor, the valve- 6l is again "closed, Fluid lines 56 and 5'lnow carry the static head ofthe ram and the balevpositioned upon'V thepressure platen lil. This static pressure is employed in rolling the head back and in unlocking the doors by` moving the control valve 66 into open position. Static pressure fluid continues to enter the valve 6U through line 51 but is now discharged from the valve by line Gl into branch lines 66 and 66 connected with working cylinders 43 and 2B respectively, causing the doors tounlock and the head to roll back. Excessiiud from the working cylinders 43 and 28 is returned by lines' 64 and 63 respectively to line 62 and valve 60, from whence such'iluid is discharged by line 68 into return line 58. After lthe doors have been opened and the bale removed, valve 6i is again opened, permitting the ram to descend to the bottom of the charging box.

It is to be understood that at any suitable time the material of the bale may be banded o1' bound. A separate valve Imay be inserted in line 64 or 66, as at H or 12, to prevent the head from .being rolled back until the doors have been opened.

Numerous changes and modifications may be had in the system and obviously not all of the novel elements of the invention need be employed at the same time. All changes and modications coming within the scope of the appended claims are embraced thereby.

Iclaim:

1. In a baling press including a charging box and a pressure platen movable therein, the combination of: movable doors at the upper end of the charging box; a head movable into and out of position over the end of the charging box; hydraulic ram means for moving the pressure platen; hydraulically actuated head-moving means; hydraulic door-locking means; a pressure pump connected to a reservoir; a pressure fluid conduit including a check valve connecting said pump with the ram means; and a pressure fluid line including a control valve connecting said conduit, at a point between the check valve and ram means, with said head-moving means and door-locking means, said control valve selectively controlling the direction of movement of the head-moving and door-locking means.

2. In a baling press including a charging box and a pressure platen movable therein, the combination of: movable doors at the upper end of the charging box; a head movable into and out of position over the end of the charging box; hydraulic ram means for moving the pressure platen; hydraulically actuated head-moving means; hydraulic door-locking means; a pressure fluid line for supplying fiuid pressure to the head-moving and door-locking means to hold the same in head-closed and door-locked position; and means for supplying pressure huid from the ram means to the head-moving and door-locking means to open the head and unlock said doors.

3. In a baling press including a charging box and a pressure platen movable therein, the combination of movable` doors at the upper end of the charging box; hydraulic door-locking means a'hydraulic ram means for moving the pressure platen; a pressure pump connected to a reservoir; a pressure uid conduit including a check valve connecting said pump with the ram means; a pressure uid line connecting said conduit at a point between the check Valve and ram means for supplying pressure to the door-locking means to hold thesame in door-locked position; and means for supplying pressure fluid from the ram t the door-locking means to unlock said doors when the pump is inoperative.

4. In a hydraulic bailing press provided With a charging box, a pressure platen movable in said box, and hydraulic means for moving the pressure platen, the provision of: a pair of doors at the upper end of the charging box, said doors being mounted for movement about vertical axes and arranged to form an extension of two sides of the charging box when in closed position; a hollow head frame above said doors and in virtual alignment with the walls of the charging box; track means extending from the hollow head frame; a C-shaped head assembly including a lower head ORION THOMAS QUINN, SR.

REFERENCES CITED The following references are of record in the le of this patent:

UN ITEDn STATES PATENTS Number Name Date l 1,826,936 Jacobson Oct. 13, 1931 2,219,970 Wallace Oct. 29, 1940 2,396,720 Nolt- V Mar. 19, 1946

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