US2170084A

US2170084A - Baling press

Info

Publication number: US2170084A
Application number: US90247A
Authority: US
Inventors: Albert J Kruse
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-07-11
Filing date: 1936-07-11
Publication date: 1939-08-22
Anticipated expiration: 1956-08-22

Description

' Aug.22,1939. A. J. KRUSE 2,110,084

BALING PRESS Filed July ll, 1936 3 Sheets-.Sheet l Allg. 22, 1939. A- 1 KRUSE 2,170,084

` BIALING PRESS Filed July ll, 1936 3 Sheets-Sheet 2` 29 z3 2 .gf/44 A A. J. KRUsE BALING PRESS Aug. z2, 1939.

Filed July 11, 195e s sheets-sheet' 5 Patented Aug. 22, 1939 UNITED STATES naar PATLNT OFFIQ 4 Claims.

'I'his invention relates to baling presses and primarily the invention is an improvement over the press as embodied in my Patent #1,858,742 which issued May 1'7, 1932.

An object of the present invention is to provide an improved means for making inoperative the mechanism for moving the plunger on its compression stroke.

The invention also has for an object to provide bumper means effective upon the automatic return stroke of the plunger and also wherein the plunger has movable therewith an element for protecting the operating mechanism for the plunger when the plunger is retracted and during the period hay or the like is being delivered into the baling chamber and to close the baling chamber against such delivery as the plunger passes the delivery opening on its compression stroke.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved baling press whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageousI for use, as will be hereinafter more fully set forth.

The novel features of my invention -will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in side elevation of a baling press constructed in accordance with an embodiment of my invention with portions broken awiay;

Figure 2 is an enlarged fragmentary sectional View taken substantially on the line 2 2 of Figure 1;

Figure 3 is an enlarged fragmentary sectional view take-n substantially on the line 3 3 of Figure 1;

Figure 4 is a view in top plan of the machine as illustrated in Figure 1 withl the spring 61 con- 4 necting the levers, feed hopper and slide plate omitted;

Figure 5 is' an enlarged detailed sectional View taken substantially on the line 5 5 of Figure 1;

Figure 6 is an enlarged fragmentary sectional view taken substantially on the -line 6 6 of Figure 1;

Figure 7 is a vertical sectional view taken substantially on the line I 'I of Figure 4;

Figure 8 is a view in top plan with a portion (Cl. 10U-7) in section of the plunger as herein comprised un applied;

Figure 9 is a transverse vertical sectional view taken substantially on the line @-9 of Figure 7;

Figure 10 is a fragmentary transverse sectional Y5 view taken substantially on the line I i@ of Figure 7.

In the accompanying drawings, B denotes a baling chamber the rear or discharge end portion of which having associated therewith means whereby said end portion of the chamber may be contracted or permitted to expand in accordance with the tightness or looseness with which it is desired to produce a bale. As disclosed in the accompanying drawings, this means comprises two bars I extending transversely across the chamber B at the top and bottom and extending a slight distance beyond the opposite sides thereof. The extended portions of the members or bars' I have freely disposed there thro-ugh the upstanding elongated bars 2, the lower extremity of each of which is provided with a head o-r enlargement 3 for Contact from below with the lower member I.

The upper end portion of each of the members 2 has threaded thereon a speed nut i and interposed between said speed nut and the upper member I is an expansible member 5 herein disclosed .as a coil spring encircling the member 2. 'I'he desired tension at the outer end of the chamber B may be readily obtained by proper adjustment of the speed nuts 4.

The forward end portion of the chamber B in its topi is provided with a feed opening 6 defined by a conventional hopper l. As herein disclosed, the side walls at the forward or receiving end of the chamber B are solid except for an elongated slot 9 extending lengthwise of each side wall 8 closely adjacent to the bottom of the chamber. Each of these slots 9 constitutes a guideway as will hereinafter be more particularly referred to.

Each of the side walls 3 closely adjacent to the rear of the feed opening 6 is provided with ar pair of vertically spaced slots I0. Through these slots .45 I0 are disposed from without the holding lugs or dogs II, each of which is carried by a free end portion of an elongated arm I2. The opposite end portion of the arm I2 is provided with a right angular extension I4 which is rotatably disposed thro-ugh and held by a bearing I5 secured to the outer face of the adjacentside wall 8. This extension I4 is continued by an arm E6 extending inwardly of the associated arm I2 and substantially in parallelism therewith.

Both of the arms I6, as clearly illustrated in Figure l, are arranged between the arms I2. Bridging the space between these arms' I6 and contacting therewith from without is a substantially rigid strap Il, the central portion of which has freely disposed therethrough a shank I8. This shank I8 is secured to the adjacent side wall 8 and extends outwardly therefrom. The outer end portion of this shank i8 has threaded thereon a nut lil. Surrounding this shank it and interposed between the strap il and the nut I9 is an expansible member 2li herein disclosed `as a coil spring. The tension of the sp-ring may be controlled or regulated as desired by proper adjustment of the nut or stop IS lengthwise of the shank I8.

By the mounting of the lugs or dogs II as herein disclosed, it is to be noted that one of such lugs or dogs may readily move outwardly independently of the other whereby the efficiency of the dogs or lugs is materially increased.

The chamber B is supported as desired upon transversely disposed sills 2l and extending forwardly from the front sill 2! are the horizontally disposed bottom sills 22 of desired length. These sills 22 at their front end are provided with the upstanding columns 23 of desired height and each of which columns intermediate its ends is suitably secured to a side member 24 comprised in the forward frame structure of the apparatus. Each of these members 24 has its inner end portion anchored to the forward end of the baling chamber B by an angle plate 25 which, as particularly illustrated in Figures l and '7, extends a material distance above the member 24. Each of these plates 25 is secured directly to an upstanding supporting iron 26 comprised in the structure of the baling chamber at the forward or front end thereof. These irons 25 have their upper ends tied or connected by a transverse iron 21.

Welded or otherwise xedly secured to the upper edges of the members 24 are the bearing blocks 28. The: forward end portions of these blocks E@ provide mountings for the shaft 29 with which rotates a wheel 3l! of relatively large diameter and which preferably is of a web type. Extending laterally from the web of the wheel 36 are a series of trunnions 3 l, each of which having preferably mounted thereon an anti-friction sleeve 32.

As more particularly illustrated in Figure '7, it is to be noted that the trunnions 3l are arranged successively at different distances radially from the axial center of the wheel 3E). The wheel 3S operates in a` direction indicated by the arrow a in Figures l and 7 and such rotation, as herein disclosed, is accomplished by providing the periphery of the wheel Si! with the teeth 33 meshing with a pinion 34 fixed to rotate with the shaft 35 rotatably supported by the bearing blocks 2E and bridging the space therebetween. This shaft 35 extends to one side of the forward portion of the frame of the apparatus and to said Xtended portion is Xed a gear 3l meshing with a pinion 33. This pinion 38 rotates with the drive shaft 39 also rotatably supported by the bearing blocks 28. This shaft 39 also carries a pulley Il@ for driven connection with a suitable source of power.

The plunger P comprises an elongated member or beam il having disposed along the major portion thereof a kerf 2 through` which the lower portion of the wheel 3u is freely disposed, said kerf being of such dimensions to assure the desired movements of the plunger P without hinderance or obstruction being offered by such wheel 3d. As herein disclosed, the kerf d2 opens through the outer end of the. member or beam di and the opposite or inner end of the member or beam 4l carries a head i3 of required dimensions. The head :i3 has its marginal portions defined by the flanges i4 extending in a direction inwardly of the member or beam fil.

The head 43, as herein disclosed, is held in applied or working position with respect to the inner end of the member or beam il by the bracket plates l5 suitably,7 bolted both to the head 43 and to the adjacent end portion of the member or beam ill. The bolts 65 which hold the bracket plates Q5 to the member or beam lll also securely hold against the plates 45 at opposite sides of the member or beam ll the plates 4l. The plates 4l adjacent to the head 43 are provided with the oppositely directed and laterally disposed retard bumper wings or lugs 58. As is particularly illustrated in Figure 8, the rear orr working faces Vof the wings or lugs 48 are substantially coplanar and at right angles to the longitudinal axis of the member or beam 4I The forward or outer portion of the member or beam 4I at opposite sides of the kerf l2 is provided in its upper face with the racks 49 with which engage the trunnions 3l or more particularly the anti-friction sleeves 32 carried by said trunnions. These trunnions with their sleeves, as is clearly illustrated in Figure l, extend laterally from` the opposite sides of the web of the wheel 3&1. The trunnions 3l are spaced apart successively so that as the wheel 3E) rotates in the direction of the arrow a the teeth will successively Contact with successive teeth of the racks i9 assuring the desired compression stroke of the plunger P, and the arrangement of these trunnions 3l with respect to the axial center of the wheel 3c, as has been hereinbefore referred to, assures an effective stroke.

The side flanges 4d in the lower portions thereof have disposed therethrough in a direction transversely of the member or beam 4i a shaft 55, the extremities of which carrying the rollers 5l which work within the slots or guideways 9. The rollers 5I in coaction with the slots or guideways 9 provide means whereby the desired movement of 'the plunger P is readily controlled yet at the same time allowing the vplunger to have swinging movement with the shaft 50 serving as a fulcrum to compensate for the desired action of the operating means for the plunger.

The upper or top flange 44 of the head /53 is of a width in excess of the width of the remaining flanges. and to the outer o-r free longitudinal marginal portion of this upper or top ange 1M is hingedly connected, as at 52, an end portion of a slide plate 53 of such dimensions and configuration to move inwardly of the baling chamber B with the plunger P to close the feed opening 5 so that, if desired, a new charge of hay or the like may be placed within the hopper 'I so that upon return stroke of the plunger P the hay or the like can be immediately pushed down or delivered into the baling chamber.

lI'he outer end portion of this slide plate 53, which is preferably produced from a flat metal sheet, is provided with an upstanding flange 5d,

the end portions of which are slidably engaged with the guide rods 55. These guide rods are positioned above the bearing blocks 28 and inclined on a desired angle downwardly toward the' entrance end of the baling chamber B and secured, as at 56, to fthe upper or top transverse member or iron-2`| hereinbefore referred to.

The opposite or high ends of these guide rods 55 are supported by the upstanding posts 5T supported directly upon the bearing blocks 28. 'I'he rods 55 are of a length to extend a distance fo-rwardly from the entrance end of the baling chamber B to provide effective protectionto thevarious operating gears and pinions and parts associated i j therewith when the plunger P is retracted. This protection is particularly to prevent hay or the like from falling upon the operating mechanism and thereby hindering or hampering the desired effective operation of the machine. It is believed to be self-evident that the slide plate 53 possesses sufcient'finherent resiliency or flexibility to= permit the desired movement with the plunger P;

Secured to the side faces of the member or beam 4| at its outer or forward portion are the angle irons or rails 58, the outer end portions of which being disposed, as at 58a, on a downward incline with respect to the remaining portion of the rails.

As theplunger moves inwardly of the baling chamber B on its compression stroke, it places under tension a retractile member 50, herein disclosed as a coil spring, having one end portion anchored to the central portion of the shaft 50,

gi hereinbefore referred to, carried by the lower portion of the head 43. The opposite end portion of this member or spring '60 is suitably anchored to a forward portion of the frame structure. This member or spring 60 automatically retracts the plunger P to its initial position after the plunger has completed its compression stroke or at any time during the compression stroke of the plunger. This return movement does not occur, of course, until after themember or beam 4 I, or more particularly the racks 49 thereof, have been released from the action of the trunnions 3| carried by the wheel 30.

Normally when the plunger P is in its retracted position, the outer portion thereof is in a lowered position bringing theracks 49 out of the path of travel of the trunnions 3| but contacts at all times from above with the cross member 6| comprised in the rocking arch 62 of a shaft 63. This shaft 63 extends transversely of the machine and is rotatably supported by the bearings 64 arranged upon the sills 22. The member 6| has rotatably mounted thereon an anti-friction sleeve 65 which has direct contact with a member or One end portion of the shaft 63 is extended and fixed to said extended portion in the lower extremity of an upstanding lever '66. The upper end portion of this lever 66 has connected thereto an end portion of a retractile member 61, herein disclosed as a coil spring, of desired tension, while the opposite end portion of said member or spring 6l is secured to a second upstanding lever 68. The lever 58 is pivotally connected at its lower end, as at '69, to an outstanding bracket 'Hl secured to and depending from the adjacent inner plate 25, The intermediate portion of this lever 58 is normally engaged with a holding bracket H secured to a side iron 26 and extending forwardly therefrom. W'hen this lever 68 is engaged with the holding bracket '|`I the member or Yspring 61 serves to maintain the lever 66 in a ,position whereby the rocking arch 62 maintains the member orbeam 4| in proper raised position for coaction with the outstanding trunnions 3| carried by the wheel 30. This member or spring 61, however, allows for a yielding contact so that themember or beam. 4|v may be operated with a minimum of hindrance or obstruction.

When the lever 68 is released from the holding bracket 1|, the lever B'will move in a .direction to allow the rocking arch 62 to drop whereupon the beam or member 4| will drop out of operan tive engagement with the wheel 38 and which reu lease can be readily obtained as desired. at any point at any time during the compression stroke of the wheel 30. It is', of course, important tobe assured that upon Vthis lowering' of the arch member 62 the member or beam 4| or more particularly the effective teeth of the racks 4Q, be released from the-associated trunnions 3|.

Rotatably disposed through one of the side members 24 is a stub shaft 'l2 extending beyond opposite sides of said member 24. The inner end portion of the shaft 'l2 carries a rock arm 1'3 for contact from above with the adjacent iro-n or rail 58. The outer extended yportion of the shaft "l2 has fixed thereto an end portion of an elongated rigid arm '|5 which extends in a direction towardY the baling chamber B and terminates a slight distance in advance of the lever E58 when in its normal position. The free or outer end pori.

tion of this arm 'I5 carries an outwardly and laterally extending arm 16 which is contacted by an upwardly and outwardly curved leaf spring l1, the lower end portion of which being xed to the lower portion of the lever 68. As the lever 68 swings outwardly and downwardly the Contact of the spring 'I1 with the extension arm 'l swings the arm 'l5 downwardly and at the same time swings the rock arm |3 in a direction to bear down upon an iron or rail 58 and positively assure complete'release of the member or beam 4|, or more particularly the racks 4S thereof, from the wheel 30. At the same time the lever 56 will drop forwardly and .downwardly to assure the proper lowering of the rack arch 62. Upon its engagement or release of the member or beam 4|'from the wheel 3U, the retractile member or spring 6|) will immediately retract the plunger P to its initial or normal position and ready for its next compression stroke upon proper lifting of the levers 68 and 66 which is effected simultaneously through the medium of the interposed expansible member or spring B1.

The shaft l2 is also provided with an upstanding rock arm 18, the upper end vportion of which has secured thereto a retractile member or coil spring T9 which is also suitably secured to the adjacent upright 2'3. This spring 'E9 serves to normally maintain the arm l and, of course, the arm 13 raised so that no obstruction will be beam 4| to effect a compression stroke o-f the plunger. y

As the plunger P is retracted by the member or spring 60 the retard bumper wings or lugs will contact with the cushions or bumpers 88, preferably of rubber, and one of which as herein disn closed depends from a member 24 at the required location to properly limit the outward or retracting movement of the plunger P under the action of the spring 60 so that the plunger will be in proper placement after its succeeding compression stroke.

The baling chamber B immediately to the rear of the hopper 1 is provided with a pressure relief plate 8|, This pressure relief forms subjectmatter for a separate application for patent executed on even date herewith.

My improved apparatus as herein embodied f may be stationary, Or,`if preferred, may be mountloffered tothe desired raising of the member or ed upon wheels to allow the same to be readily and conveniently transported, However, as this is believed to be obvious it is not thought that a detailed illustration and description thereof is necessary.

The plunger P is driven, as hereinbefore set forth, in a forward direction by the wheel 3|) through the coaction of the trunnions 3| with the racks 49. The plunger P does not move forward on a level as it is desired that initially the head 43 tilt slightly so that the working face of the head is not in a true perpendicular plane, thus allowing the lower edge portion of the head 43 to enter the chamber B in advance of the upper edge. This initial arrangement of the head 43 is to attain a greater compressing force as the hay in the hopper or chamber is more condensed at the bottom and upwards than at the top. Furthermore, this initial positioning of the head 43 aiows more hay to be fed down through the opening 6 while the packing of the bale is in progress. As the plunger moves inwardly of the chamber B on the compression stroke the head 43 gradually assumes a true perpendicular position with the beam 4| gradually assuming a level position, thus assuring the completed bale attaining a more uniform density and a better shape.

From the beginning of the forward movement of the plunger, the beam 4| constantly changes its level, being gradually raised by the rock arm @2 until the beam 4| reaches a substantially level position at about the time the bale is completed. At this point of operation the trunnions 3| nearest the center of the driving wheel 30 disengage from the racks 49 of the beam 4| whereupon the plunger P is released from the action of the wheel til and retracted under the action of the spring Et, which has been placed under tension as the plunger P moves fo-rwardly, this return movement in practice being effected with a high degree of force which, however, is retarded by the frictional contact between the irons or rails 58 from below with the lugs 59, the resultant friction diminishing the speed of such return until the plunger P is brought to a stop at the end of its return stroke. The inclined portions 58a of the irons or rails 58 provide for increased and more effective resistance at the initial return movement of the plunger. As illustrated in Figure 10 of the drawings, the lugs 59 are suitably secured to the inner or opposed faces of the columns 23.

The shaft 'l2 is operated to cause the arm '|3 to depress the beam 4| to disengage the racks 49 carried by the beam 4| from the trunnions 3| of the wheel 3Q to permit the plunger P to fly back before completing its compression stroke. This action is particularly desirable in case of an accident, such as a workman projecting an arm or foot too far into the hopper or chamber B while a bale is being pressed.

From the foregoing description it is thought to be obvious that a baling press constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

l. The combination with the baling chamber of a press; of a reciprocating plunger coacting with said chamber and including an elongated member, a rotatable member, coacting means carried by the rotatable member and the elongated member of the plunger for moving the plunger on its compression stroke upon rotation of said rotatable member, a swinging member positioned below the elongated member of the plunger to engage said elongated member upon movement of the swinging member in one direction to maintain the elongated member in position for movement by said coacting means, a rock lever movable with said swinging member, a second lever supported for swinging movement, a retractile spring connecting the rock'lever and the second lever, movement of the second lever in one direction imposing pull upon the rock lever in a direction to cause the swinging member to maintain the elongated member in position for movement by the said coacting means, means for releasably holding the second lever against return movement, a rock arm supported for movement adjacent to the elongated member, means associated with the rock arm for contact by the second lever when swung in a direction to make the connecting spring inoperative for moving the rock arm in a direction to contact with the elongated member to move said elongated member into inoperatve position with respect to the rotatable member, means for normally maintaining the rock arm at the limit of its movement in the opposite direction, and means for retracting the plunger when the elongated member is free of the rotatable member.

2. The combination with the baling chamber of a press; of a reciprocating plunger coacting with said chamber and including an elongated member, a rotatable member, coacting means carried by the rotatable member and the elongated member of the plunger for moving the plunger on its compression stroke upon rotation of said rotatable member, a swinging member positioned below the elongated member of the plunger to engage said elongated member upon movement of the swinging member in one direction to maintain the elongated member in position for movement by said coacting means, a rock lever movable with said swinging member, a second lever supported for swinging movement, a retractile spring connecting the rock lever and the second lever, movement of the second lever in one direction imposing pull upon the rock lever in a direction to cause the swinging member to maintain the elongated member in position for movement by the said coacting means, means for releasably holding the second lever against return movement, a rock arm supported for movement adjacent to the elongated member, means associated with the rock arm for contact by the second lever when swung in a direction to make the connecting spring inoperative for moving the rock arm in a direction to contact with the elongated member to move said elongated member into inoperative position with respect to the rotatable member, means for normally maintaining the rock arm at the limit of its movement in the opposite direction, means for retracting the plunger when the elongated member is free of the rotatable member, a spring arm carried by the second lever, and an elongated arm movable with the rock arm and with which the spring arm contacts when the second lever is swung in a direction to make the connecting spring inoperative.

3. The combination with the baling chamber of a press; of a reciprocating plunger coacting with said chamber and including an elongated member, a rotatable member, coacting means carried by the rotatable member and the elongated member of the plunger for mloving the plunger on its: compression stroke upon rotation of said rotatable member, a swinging member positioned below the elongated member of the plunger to engage said elongated member upon movement of the swinging member in one direction to maintain the elongated member in position for movement by said coacting means, a rock lever movable with said swinging member, a seco-nd lever supported for swinging movement, a retractile spring connecting the rock lever and the second lever, movement of the second lever in one direction imposing pull upon the rock lever in a direction to cause the swinging mem,- ber to maintain the elongated member in position for movement by the said coacting means, means for releasably holding the second lever against return movement, .a rock arm supported for movement adjacent to the elongated member, means associated with the rock arm for contact by the second lever when swung in a direction to make the connecting spring inoperative for moving the rock arm in a direction to contact with the elongated member to move said elongated member into inoperative position with respect to the rotatable member, means for normally maintaining the rock arm at the limit of its movement in the opposite direction, means for retracting the plunger when the elongated member is free of the rotatable member, and automatic means for disengaging the elongated member from the rotatable member when the plunger reaches the end of its compression stroke.

4. The combination with the baling chamber of a press; of a reciprocating plunger coacting with said chamber and including an elongated member, a rotatable member, coacting means carried by the rotatable member and the elonin one direction imposing pull upon the rock lever in a direction to cause the swinging member to maintain the elongated member in position for movement by the said coacting means, means for releasably holding the second lever against return movement, a rock arm supported for movement adjacent to the elongated member, means associated with the rock arm for contact by the second lever when swung in a direction to make the connecting spring inoperative for moving the rock arm in a direction to contact with the elongated member to move said elongated member into inoperative position with respect to the rotatable member, means for normally maintaining the rock arm at the limit of its movement in the opposite direction, means for retracting the plunger when the elongated member is free of the rotatable member, automatic means for disengaging the elongated member from the rotatable member when the plunger reaches the end. of its compression stroke, said automatic means comprising stationary lugs supported at opposite sides of the elongated member, and downwardly and rearwardly inclined rails carried by the elongated member for coaction with the lugs upon the initial return stroke Off the plunger to move the elongated member into a position free of the rotatable member.

ALBERT J. KRUSE.