US3356015A - Press, particularly intended for compression of bark - Google Patents

Press, particularly intended for compression of bark Download PDF

Info

Publication number
US3356015A
US3356015A US470071A US47007165A US3356015A US 3356015 A US3356015 A US 3356015A US 470071 A US470071 A US 470071A US 47007165 A US47007165 A US 47007165A US 3356015 A US3356015 A US 3356015A
Authority
US
United States
Prior art keywords
bark
press
compression
piston
press lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US470071A
Other languages
English (en)
Inventor
Kaarlo K Halmekyto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tampella Oy AB
Original Assignee
Tampella Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tampella Oy AB filed Critical Tampella Oy AB
Application granted granted Critical
Publication of US3356015A publication Critical patent/US3356015A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/301—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3039—Fluid removing means

Definitions

  • the invention concerns a press, particularly intended for compression of and water removal from bark, etc.
  • the press covered by the invention is especially suited for compression of bark waste received in cellulose mills into a shape and dryness suitable to be burned.
  • presses of this type based on pistons, rollers, the screw principle have been known; the common drawback encountered with them consisted of feed problems. For instance, in presses employing rollers or chain mats the material to be compressed tends to collect in front of a relatively small and unchanged compression point, and this greatly hampers the feeding of the material through the press.
  • the piston must, in presses of this type, perform an idling return movement in between the compression strokes, and this markedly reduces the capacity of the press. Presses employing screws carry space requiring pressing equipment within the pressing space.
  • An object of the press in accordance with the present invention is to remove the above mentioned drawbacks, and it is a main characteristic of a press conforming with the invention that it comprises two feed spaces intended for bark feeding which together form two interconnected press chambers, a piston moving back and forth through the feed space and pushing in turn both press chambers as well as a press member, being in turn pushed in a synchronized manner together with the piston.
  • the piston is installed in such manner as to feed a bark portion from the feed space in turn into both press chambers to be compressed by the mentioned press member.
  • FIG. 1 shows the press partially in vertical section and partially in side elevation.
  • FIG. 2 is a fragmentary view in bottom plan.
  • FIG. 3 is an enlarged vertical section along line 3-3 in FIG. 2.
  • FIG. 4 is a fragmentary view in vertical longitudinal section through the right-hand arm of the press lever
  • FIG. 5 is a fragmentary View in vertical longitudinal section through the press showing the feed piston in elevation, the section being taken generally along the line 5-5 of FIG. 1.
  • FIG. 6 is a view in transverse vertical section through the arm 13 of the apparatus, the section being taken along the line 66 of FIG. 1 looking in the direction of the arrows.
  • the bark press shown in the drawing has a sturdy foundation plate 1, and on this are two separate spaced parallel walls 2 and 3, the vertical transverse section of which form together with the foundation plate a rectangular, essentially horizontal chute which is open upwards and at the ends. Above the center of the chute there is disposed a feed hopper 4 for conveying the bark to be compressed to the feed space 5 underneath of the chute.
  • the chute parts located on both sides of the feeding hopper form two compression chambers 6 and 7 .which, as shown, are located on the same axis in respect of each other, and are connected by the central feed space.
  • the side walls of the compression chambers are perforated as shown at 8. The water that escapes outwardly through the holes 8 in the side walls of the chambers of the press is led away through drain passages (not shown) in the base of the press.
  • brackets 9 fastened to the foundation plate on both sides of the feeding hopper.
  • An elongated hollow press lever 11 is pivotally mounted at its center on brackets 9 on a pivot pin 10 mounted in such bracket. Both arms 12 and 13 of the press lever extend generally in the direction of the chute above both press chambers.
  • the press lever is shaped in such mannet that in its center there is a passage formed to accommodate the feeding hopper 4, and the bifurcations opposite arms of the lever are width-wise dimensioned to essentially fill the free upper end of the chute along the whole length of both compression chambers, thereby forming the upper wall of the compression chambers.
  • press lever At the opposite ends of the press lever are double-acting hydraulic cylinders 14a and 14b, which thrust the respective arms of the lever to oscillate the lever about its center.
  • the disposition of the press lever is such that both its arms or bifurcations can move in between a lower position in the corresponding press chamber (the position of arm 12 in FIG. 1) and an upper position (the position of arm 13 in FIG. 1) wherein it is essentially drawn out of the press chamber.
  • the arm parts When the press lever swings, the arm parts are I alternately pushed down into the respective press chamber.
  • each arm is provided with perforations 8a and are slightly curved; when each arm is at its upper position, the lower surface of such arm is essentially parallel with the bottom of the chute.
  • the water which escapes from the bark upwardly through the holes 8a in the bottom of each of the press arms 12 and 13 runs along the upper surface of the respective press arm and escapes through the respective feed out orifice 21, from which it flows to said drain passage (not shown) in the 1 base of the press.
  • the piston rod 20 of each of the two hydraulic cylinders 19 being pivotally secured to the respective brackets.
  • the guide pins 17 of the piston 15 are attached to the cylinders 19.
  • the extent of movement of the hydrau ic cylinder is such as to allow the piston 15 to move through the feed space from one of the compression chambers, as shown in FIG. 1, into the other compression chamber.
  • the piston 15 is perforated in the axial direction, as shown at 8b in FIG. 5.
  • a vertical feed out orifice 21 is provided for the compressed bark.
  • Such bark is to be, for instance, further fed onto a conveyor belt (not shown) installed below the bark press.
  • Both arms or bifurcations of the press lever 11 are at the orifices 21 of the chambers of the press chamber provided with a toothed member 22, which moves back and forth in front of the feed-out orifice, when the press lever swings.
  • the hydraulic cylinders of the press lever 11 and the piston 15 may be operationally synchronized to be lateron explained in detail.
  • the apparatus may be provided with an ultra-sound device 23 applied on the side wall of the feed hopper such device 23 produces an impulse, when the feed space has been filled with bark to a certain height, which corresponds to the desired loading.
  • the device 23 may be, for example, one made by Delevan Manufacturing Company, West Des Moines, Iowa, and sold under the trademark Sonac. Such device is described in Temporary Bulletin 4l5 1, dated June 1961, of the Delevan Manufacturing Company.
  • the bark press functions in the following manner: Wet bark to be compressed and relieved from its water is fed through the feed hopper 4 to the feed space 5.
  • the ultra-sound device 23 When the feed space is filled to a preset height, and not before, the ultra-sound device 23 indicates such condition so that the control mechanism of the hydraulic cylinders 19 may then be operated to feed hydraulic oil under pressure into the correct end of the cylinders to move the piston 15 into the other compression chamber, for instance into chamber 6.
  • the piston 5 quickly moves through the feed space 5 pushing the bark portion ahead to the press chamber 6.
  • the piston is further proceeding at a lower speed toward its extreme position, which is shown in FIG. 1.
  • Part 12 of the press lever has, during the above described movement of the piston 15, remained in the lower position shown in FIG. 1 until the control mechanism for the cylinders 14a and 14h is operated to feed the hydraulic oil into the cylinder 14a and to drain it from the cylinder 14b, whereby, the press lever 11 swings into its other extreme position and the part 12 moves upwards.
  • the described operation of the cylinders 14 preferably begins when the piston 15 has moved about A of its path. Because of this arrangement, the piston 15 pre-presses the bark portion in the press chamber 6 against the bark plug already established there until the lever arm 12 rises.
  • the mechanism controlling the actuation of the cylinders 14 are operated to cause the lever 11 to swing again in a manner to cause the part 13 thereof to be pushed into the press chamber 7. Thereafter, the cylinders 19 are operated to cause the piston 15 to perform another feeding movement, whereby, the above described functions are repeated as regards the other press chamber 7.
  • the ultra-sound device 23 signals when the desired quantity of bark has been fed into the feed space 5. Hence, it is assured that the piston 15 will not feed inadequate bark portions into the press chambers 6 and 7 and the degree of fitting of the press chambers 6, 7 remains essentially constant. Thus each of the bark portions becomes compressed to a like extent, causing the dry content of the compressed product to remain essentially similar.
  • a press adapted for the compression of bark and the like and for the removal of water from such material, comprising means providing a pair of generally aligned upwardly open compression chambers having confronting ends spaced from each other, said chambers having spaced opposite side walls, means providing a bark feeding chamber between the confronting ends of the compression chambers for supplying bark to the confronting, bark entering ends of the compression chambers, a bark feeding piston reciprocable from a position within the bark entering end of one compression chamber, through the bark feeding chamber, and into the bark entering end of the other compression chamber, means for reciprocating the piston, a two-armed press lever, means pivotally mounting the press lever intermediate its length so that the arms of the press lever alternately travel downwardly into their respective compression chambers through the open upper sides thereof as the press lever is oscillated about said pivotal mounting means therefor, the compression chambers and the respective arms of the press lever forming elongated chutes into which the piston thrusts a charge of bark, and means for oscillating the press lever.
  • a press according to claim 3, wherein the means for oscillating the press lever comprises power means connected to an end of the press lever.
  • a press according to claim 3, wherein the means pivotally mounting the press lever comprises bearing means supporting the intermediate portion of the press lever above the chute and at the location of bark feeding chamber, and the two arms of the press lever have lower surfaces in the form of platens which compress the bark in the compression chambers.
  • a press according to claim 5 comprising a vertical delivery orifice adjacent the outer end of each compression chamber, and comprising a generally vertically extending saw tooth member connected to the end of each arm of the press lever to exert a sawing action upon the compressed bark in the delivery orifices upon oscillation of the press lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Foundations (AREA)
US470071A 1964-07-10 1965-07-07 Press, particularly intended for compression of bark Expired - Lifetime US3356015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI148064 1964-07-10

Publications (1)

Publication Number Publication Date
US3356015A true US3356015A (en) 1967-12-05

Family

ID=8505695

Family Applications (1)

Application Number Title Priority Date Filing Date
US470071A Expired - Lifetime US3356015A (en) 1964-07-10 1965-07-07 Press, particularly intended for compression of bark

Country Status (3)

Country Link
US (1) US3356015A (enrdf_load_stackoverflow)
NO (2) NO116886B (enrdf_load_stackoverflow)
SE (1) SE306470B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2215839C1 (ru) * 2002-08-09 2003-11-10 Общество с ограниченной ответственностью "Завод бытовых швейных машин" Механизм зигзага для швейной машины

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8137A (en) * 1851-06-03 Improvement in machines for expressing
US326698A (en) * 1885-09-22 Cotton-pres
US472349A (en) * 1892-04-05 Hay-press
US1038255A (en) * 1910-10-04 1912-09-10 John Norman Baling-press.
US1602626A (en) * 1925-07-06 1926-10-12 Michael J Power Bark press
US2587997A (en) * 1949-10-07 1952-03-04 Herbert W Guettler Double-acting plunger press
US3024719A (en) * 1960-09-01 1962-03-13 American Baler Co Apparatus for baling
US3070006A (en) * 1960-03-08 1962-12-25 Avco Corp Crop wafering mechanism
US3073239A (en) * 1960-02-25 1963-01-15 Cowan Elijah Bark press

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8137A (en) * 1851-06-03 Improvement in machines for expressing
US326698A (en) * 1885-09-22 Cotton-pres
US472349A (en) * 1892-04-05 Hay-press
US1038255A (en) * 1910-10-04 1912-09-10 John Norman Baling-press.
US1602626A (en) * 1925-07-06 1926-10-12 Michael J Power Bark press
US2587997A (en) * 1949-10-07 1952-03-04 Herbert W Guettler Double-acting plunger press
US3073239A (en) * 1960-02-25 1963-01-15 Cowan Elijah Bark press
US3070006A (en) * 1960-03-08 1962-12-25 Avco Corp Crop wafering mechanism
US3024719A (en) * 1960-09-01 1962-03-13 American Baler Co Apparatus for baling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2215839C1 (ru) * 2002-08-09 2003-11-10 Общество с ограниченной ответственностью "Завод бытовых швейных машин" Механизм зигзага для швейной машины

Also Published As

Publication number Publication date
SE306470B (enrdf_load_stackoverflow) 1968-11-25
NO116886B (enrdf_load_stackoverflow) 1969-06-02
NO127438B (enrdf_load_stackoverflow) 1973-06-25

Similar Documents

Publication Publication Date Title
EP0037041B1 (en) Press for continuously expressing liquid out of a mass
SU1438602A3 (ru) Устройство дл прессовани в блоки отходов металлообработки
US3070006A (en) Crop wafering mechanism
US2281860A (en) Continuous feed and pressure press
US2833633A (en) Apparatus for forming logs of compressible materials
US2648262A (en) Fibrous material extrusion apparatus
US2955529A (en) Packaging press
US2587997A (en) Double-acting plunger press
US2810181A (en) Extrusion press
US3554117A (en) Apparatus for baling loose material
US3356015A (en) Press, particularly intended for compression of bark
US4127062A (en) Opposed box baling press
CA2028019C (en) Double screen belt press
DE3630122A1 (de) Brecheinrichtung fuer bewehrtes brechgut, insbesondere aus beton
US5524534A (en) Dual hydraulic cylinder compacting apparatus
US1550045A (en) Bark-compressing machine
US3073239A (en) Bark press
US3249039A (en) Machine for severing and compressing scrap material
US1748374A (en) Continuous tankage press
US3581655A (en) Press for manufacturing cylindrical objects from loose fibrous or particulate material
US1384206A (en) Briquet-machine
US1988497A (en) Hay press
US1075234A (en) Steam cotton-baling tamper.
US715409A (en) Baling-press.
US1573565A (en) Art of briquetting