US3698552A - Sorting machine - Google Patents

Sorting machine Download PDF

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Publication number
US3698552A
US3698552A US100190A US3698552DA US3698552A US 3698552 A US3698552 A US 3698552A US 100190 A US100190 A US 100190A US 3698552D A US3698552D A US 3698552DA US 3698552 A US3698552 A US 3698552A
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United States
Prior art keywords
sorting
sectional
discs
sorting machine
guide plate
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
US100190A
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English (en)
Inventor
Paul Wittmann
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19691965243 external-priority patent/DE1965243A1/de
Priority claimed from DE19702012654 external-priority patent/DE2012654C3/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3698552A publication Critical patent/US3698552A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4636—Regulation of screen apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B07B13/075—Apparatus comprising moving article - receiving openings, the size of which varies as they move

Definitions

  • ABSTRACT A sorting machine having a plurality of parallel rollers
  • chain means which form them into an endless belt and each supporting a plurality of spaced, double-conical sectional discs; guide rails for the discs for adjusting the positions of the discs along their rollers; slotted guide plate means connected with the rails for readjusting the positions of the rails, thereby to readjust the positions of the sectional discs.
  • a plurality of sorting machines may be arranged in a row, each'with means for providing a transition to the succeeding machine.
  • the invention relates to a sorting machine for substantially rounded or spherical articles, and more particularly agricultural products, such as potatoes.
  • the machine has a number of rotary sectional rollers, which extend parallel to one another and are made up of individual double-conical sectional discs.
  • a potato sorting machine of this kind is known from US. Pat. No. 2,588,309, which has two arrangements of sectional rollers for sorting three sizes of potatoes.
  • the rollers have sectional discs of various 'sizes and are disposed at varying distances from one another.
  • the sizes to be sorted are fixed because the distances between both the rollers and the sectional discs cannot be changed.
  • a sorting machine is also known in which the items to be sorted drop through apertures in an endless, rotary, jointed-band conveyor. Because the jointed band comprises a fixed mesh, it is impossible to alter the sorting size.
  • East German Patent No. 60,212 discloses a potato sorting device having substantially immovable doubleconical sectional discs.
  • the discs are resiliently mounted to permit displacement in the longitudinal direction along the disc carrying shafts, to avoid damage to the items being sorted or to the sectional discs.
  • the sorting size cannot be adjusted.
  • the distances between the sectional discs carried by the individual support rollers can be adjusted.
  • the sectional discs are adjusted by rails, which slide along rods that are disposed parallel with the axes of the sectional rollers.
  • the rails are shifted by a guide plate, which can be moved relatively to the rods.
  • the guide plate is moved transversely of the rods and the slots with respect to the rails.
  • the slot inclines vary and are selected so that the changes in the distances between the rails caused by the movement of the guide plate are identical and the rails can remain equidistantly spaced.
  • two parallel rail supporting rods are provided, and the guide plate has two parallel groups of slots.
  • the guide plate can be moved by a rotary spindle engaging in a screw threaded bush attached to the guide plate.
  • each roller is disposed for co-rotation on a common shaft.
  • Each shaft is carried in endless rotating chains having a substantially horizontal, item sorting top run.
  • Each shaft carriesa gear, which meshes with a rack disposed parallel with such top run.
  • the sectional rollers are, therefore, both moved in the conveying direction transversely of their axes, and are rotated around their axes. The items being sorted are conveyed onward and are thoroughly sorted even if a large quantity of them are supplied to the sorting machine.
  • an intermediate rail disposed parallel with the-sectional rollers is provided at one end of the top run of the chain and between neighboring sorting machines.
  • FIG. 1 is a perspective view of a sorting machine ac cording to the invention
  • FIG. 2 diagrammatically illustrates three sorting machines of the type shown in FIG. 1, disposed one after the other for multiple sorting in one operation;
  • FIG. 3 is a plan view of a portion of the sorting surface of two sorting machines disposed one after the other as shown in FIG. 2;
  • FIG. 4a is an enlarged detail view of the left-hand portion of FIG. 3;
  • FIG. 4b is an enlarged detail view of the right-hand portion of FIG. 3;
  • FIG. 5 is a side view of the sorting machine seen at an angle from below, as indicated by arrow V in FIG. 1;
  • FIG. 6 is a section taken along the line VI-Vl in FIG. 5;
  • FIG. 7 is a section taken along the line VII-VII in FIG. 4b.
  • FIG. 2 shows a plurality of sorting machines 10, l0, 10'' according to the invention. They are substantially identical, with the exception noted below.
  • FIG. 1 along with FIG. 2, illustrates machine 10, which comprises a frame 11 across which extend and in which are pivotably mounted four parallel rollers 12-15.
  • Endless sorting belt means 16 passes around the four rollers. At least one roller, e.g. top roller 13, is driven by motor 17 mounted on frame 11.
  • the upper surface 40 of sorting belt 16 is the working surface. Items to be sorted are deposited on surface 40. This surface has openings 41 through it, defined by means described below. Those items, whose dimensions are smaller than openings 41 (FIG.
  • Sorting machine 10 sorts to two sizes, items small enough to fall through belt 16 and larger items.
  • each machine has an intermediate transition rail 19 of substantially triangular cross-section with an upper horizontal surface, or an idle roller of relatively small diameter.
  • FIG. 3 is an enlarged plan view of the connection area between the machines 10, 10' shown in FIG. 2.
  • the sorting belt 16 comprises a number of sectional rollers 20, which are disposed parallel with one another, are aligned transversely of the direction of conveyance of the belt and extend across the belt.
  • the rollers 20 each comprise a series of sectional discs 21 disposed one beside the other.
  • sectional discs 21 are shown in FIGS. 4a and 4b and in section in FIG. 5. They are made of a resilient material, for instance rubber, and have an outside diameter of about 90 mm. and a thickness of about 50 mm. Their outer surfaces are of cone shaped shell form and are chamfered, preferably at an angle of 45 to the axial direction, a central end face being left of about 12 mm. in width. The resulting conical surfaces 22 form the actual working surfaces of the sectional discs 21. Concave roundings can be substituted for the straight chamferings illustrated. As FIGS. 4a and 4b show, the adjacent conical surfaces 22 of each two pairs of adjacent sectional discs 21 form squares on two adjacent sectional rollers 20. The comers of the squares are absent, but, in any case, are ineffective for sortin potatoes or other rounded articles.
  • FIGS. 3, 4a and 4b show all the sectional discs 21 of a roller 20 disposed on a shaft 23.
  • the sectional discs 21 are formed with a square central recess, and the shaft 23 is of square cross-section. As a result, the sectional discs 21 can be displaced in relation to one another longitudinally of the shaft 23, but are connected thereto for co-rotation.
  • the shafts 23 are pivotably suspended at both ends in endless chains 24a, 24b, which pass around rollers 12-15. Adjacent chain 24b on each shaft 23, is attached a. gear 25. Gear 25 meshes with a rack 26, which is attached to the frame 1 l and is disposed parallel with top sorting surface 40 of belt 16.
  • the chains 24a, 24b convey sectional rollers 21 and the items being sorted across the top sorting surface feed the remaining items to the next sorting machine.
  • the gears 25 and rack 26 ensure that in the top run of the sorting belt 16 the sectional rollers 20 rotate around their own axes. This enables the items to be sorted even when the items are deposited in a tall pile.
  • each sectional roller 20 comprises sectional discs 21.
  • the same number of L-rails 30 are mounted parallel with one another. Rails 30 are so aligned that their inner surfaces extend parallel with the chamferings 22 of the sectional discs 21. Since each sectional disc 21 runs in its rail 30, the discs 21 are aligned by the rails on each rotation of the sorting belt 16 and can be adjusted in their separation by the lateral displacement of the rails 30.
  • each rail 30 has two sliding blocks 31, which slide on two horizontal rods, which are disposed parallel with the lateral run of sorting belt 16.
  • rods 32 are attached to lateral frame strips 33.
  • the sliding blocks 31 each have guide pins 34 extending through slots 35 in a guide plate 36.
  • Attached to the bottom end of plate 36 is a screw threaded bush 40, which receives a screw threaded spindle 42 that is mounted at a place 41 on the frame 11.
  • Spindle 42 is rotated by crank 43 through shaft 44 and bevel gears 45. Rotation of spindle 42 moves guide plate 36 upward or downward parallel with the lateral run of the sorting belt 16.
  • Slots 35 in guide plate 36 are inclined at various angles to the directions of extension of the rails 30.
  • the central slots extend parallel to rails 30.
  • the incline of the slots 35 increases with increasing distance from the center line.
  • the result is a pattern of slots in which the top ends of each row of slots are at a distance S min from one another and the bottom ends at a distance S max from one another.
  • a pivotably mounted plate formed with arcuate slots can be substituted for a transversable guide plate formed with linear slots.
  • each sectional disc 21 has an inflexible lining 50 comprising a square metal section. At least one of the four surfaces of the opening through lining 50 is formed with two boxes 51 into each of which a small metal friction disc 52is inserted.
  • the resilient material of sectional disc 21 forces disc 52 against shaft 23.
  • the frictional engagement between sectional discs 21 and shafts 23 can be controlled. This is important, since, on the one hand, discs 21 must be displaceable by the rails 30 along the shafts 23 and, on the other hand, discs 21 must be held so firmly on the shafts that the discs are not displaced by the items being sorted.
  • a sorting machine for rounded articles comprising a sorting surface having a plurality of neighboring, parallel rollers, each of which is comprised of a plurality of double-conical sectional discs; and means for selectively adjusting the distances between the said sectional discs of each said roller while said discs remain on and part of said roller; said adjustment means also being adapted to fixedly position said sectional discs after a selective adjustment; said adjustment means being for permitting various size objects to be sorted and to pass through said sorting surface.
  • said adjustment means comprises a plurality of rails for said sectional discs; said rails being displaceable sideways in directions parallel with the axes of said disc holding rollers.
  • said guide plate including a plurality of slots, with a set of said slots being provided for each of said rails; said connection means of each said rail engaging in its respective said set of guide plate slots; each of said guide plate slots being inclined with respect to the direction of extension of its respective said rail, with the degree of inclination of each said set of slots for each said rail being pre-selected so that as said guide plate is adjusted relative to said rods, all of said sectional discs are equally spaced.
  • each said roller comprises a common shaft upon which said section discs thereof are mounted; said roller and said sectional discs being so comprised that said discs rotate with said shaft;
  • rollers being secured in endless chain means, thereby forming said rollers into an endless sorting belt; said sorting belt having a horizontal top run which serves as its said sorting surface; each said roller having a gear thereto secured for engaging with a rack; a rack disposed parallel to said belt horizontal top run for engaging with each said roller gear, thereby to cause rotation of all of said gear, its associated said roller and said sectional discs as said belt passes over its said horizontal top run.
  • the sorting machine of claim 7 further comprising a sorted item support rail disposed at the downstream end of said horizontal top run and oriented parallel to said sectional disc support rollers for receiving any items which have not passed through said sorting surface.
  • a plurality of sorting machines each comprising the sorting machine of claim 7; said sorting machines being arrayed downstream of one another in a line; means interposed between neighboring sorting machines for receiving items which have not been sorted and for transmitting these items to the next sorting machine in line.
  • each said sectional disc has an opening therethrough, which receives said roller shaft therefor and each said sectional disc includes a lining in engagement with said shaft, which is comprised of relatively non-resilient material.
  • sectional disc lining has a friction element inserted therein which is in engagement with said shaft and holds said sectional disc in position on said shaft while items are being sorted, yet permits said sectional discs to be shifted along said shaft for adjusting for sorting of different size objects.

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  • Sorting Of Articles (AREA)
  • Combined Means For Separation Of Solids (AREA)
US100190A 1969-12-29 1970-12-21 Sorting machine Expired - Lifetime US3698552A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691965243 DE1965243A1 (de) 1969-12-29 1969-12-29 Sortiermaschine
DE19702012654 DE2012654C3 (de) 1970-03-17 1970-03-17 Sortiermaschine

Publications (1)

Publication Number Publication Date
US3698552A true US3698552A (en) 1972-10-17

Family

ID=25758298

Family Applications (1)

Application Number Title Priority Date Filing Date
US100190A Expired - Lifetime US3698552A (en) 1969-12-29 1970-12-21 Sorting machine

Country Status (7)

Country Link
US (1) US3698552A (de)
AT (1) AT318274B (de)
BE (1) BE760695A (de)
CH (1) CH523100A (de)
FR (1) FR2074124A5 (de)
GB (1) GB1262837A (de)
NL (1) NL148248B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213219A (en) * 1991-04-24 1993-05-25 Griffin Horace D Crop cleaner and separator
NL1010511C2 (nl) * 1997-11-07 1999-10-11 Compas B V Maschf Werkwijze en inrichting voor het verenkelen van producten en daarmee gecombineerd weeg/telsysteem.
USD615110S1 (en) * 2007-10-10 2010-05-04 Mk Sorting Systems Gmbh Sorting device
CN111921868A (zh) * 2020-07-28 2020-11-13 广东风华高新科技股份有限公司 一种多层陶瓷电容器的分选方法及其分选装置
CN115999920A (zh) * 2022-07-27 2023-04-25 济南时空超越科技有限公司 一种物流分拣设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669916A5 (de) * 1985-08-28 1989-04-28 Fuchs Maschinenbau A B
GB2505520A (en) * 2012-09-03 2014-03-05 Matthew Crowley Belt anti-wrapping system
CN108816726B (zh) * 2018-05-24 2021-04-06 王丽萍 一种林业种植用种子筛分干燥装置
WO2019235937A1 (en) * 2018-06-08 2019-12-12 Skamik As Fish sorting arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085752B (de) * 1958-02-27 1960-07-21 Hagedorn Geb & Co Sortiervorrichtung vorzugsweise fuer Kartoffeln
US3367494A (en) * 1965-07-22 1968-02-06 Soren E. Peterson Small potato eliminator structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085752B (de) * 1958-02-27 1960-07-21 Hagedorn Geb & Co Sortiervorrichtung vorzugsweise fuer Kartoffeln
US3367494A (en) * 1965-07-22 1968-02-06 Soren E. Peterson Small potato eliminator structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213219A (en) * 1991-04-24 1993-05-25 Griffin Horace D Crop cleaner and separator
NL1010511C2 (nl) * 1997-11-07 1999-10-11 Compas B V Maschf Werkwijze en inrichting voor het verenkelen van producten en daarmee gecombineerd weeg/telsysteem.
USD615110S1 (en) * 2007-10-10 2010-05-04 Mk Sorting Systems Gmbh Sorting device
CN111921868A (zh) * 2020-07-28 2020-11-13 广东风华高新科技股份有限公司 一种多层陶瓷电容器的分选方法及其分选装置
CN111921868B (zh) * 2020-07-28 2022-07-01 广东风华高新科技股份有限公司 一种多层陶瓷电容器的分选方法及其分选装置
CN115999920A (zh) * 2022-07-27 2023-04-25 济南时空超越科技有限公司 一种物流分拣设备

Also Published As

Publication number Publication date
NL148248B (nl) 1976-01-15
NL7016926A (de) 1971-07-01
GB1262837A (en) 1972-02-09
FR2074124A5 (de) 1971-10-01
BE760695A (fr) 1971-05-27
AT318274B (de) 1974-10-10
CH523100A (de) 1972-05-31

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