US2597944A - Apparatus for handling bars - Google Patents

Apparatus for handling bars Download PDF

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Publication number
US2597944A
US2597944A US84599A US8459949A US2597944A US 2597944 A US2597944 A US 2597944A US 84599 A US84599 A US 84599A US 8459949 A US8459949 A US 8459949A US 2597944 A US2597944 A US 2597944A
Authority
US
United States
Prior art keywords
skids
slab
slabs
eccentrics
bars
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
US84599A
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English (en)
Inventor
Morgan Myles
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.)
Siemens Industry Inc
Original Assignee
Morgan Construction Co
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 Morgan Construction Co filed Critical Morgan Construction Co
Priority to US84599A priority Critical patent/US2597944A/en
Priority to GB32575/49A priority patent/GB662730A/en
Priority to DEM1324A priority patent/DE822537C/de
Application granted granted Critical
Publication of US2597944A publication Critical patent/US2597944A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/002—Piling, unpiling, unscrambling

Definitions

  • Fig. 1 is a plan view of a bar handling apparatus, with certain parts broken way forclearness of illustration;
  • Fig. 2 is a section through the apparatus on a somewhat larger scale than Fig. 1, the section being taken on the line 2-2 of Fig. 3;
  • Fig. 3 is a section taken on the line 33 of Fig.2;
  • Fig. 4 is a view showing one of the upper moving skids with its supporting and driving means
  • Fig. 6 is a view showing one of the lower moving skids with its supporting and driving means.
  • Figs. 7 to 17 inclusive are diagrammatic side elevations of the apparatus showing the progressive movement of slabs along the same.
  • the embodiment illustrated comprises a substantially horizontal conveyor 20 of known construction havingspaced horizontal rollers 2
  • a plurality of stationary skids 25 extend from one side of the conveyor 20 and at right angles therewith. These skids are preferably spaced several feet horizontally from one another, and the number required will depend upon the length of the longest bars to be handled. If four skids are provided as shown, and they are spaced at intervals of approximately eight feet, bars thirty feet long may be readily handled.
  • the front end of each skid 25 i. e.
  • each skid 25 is provided with a substantially horizontal upper surface 32, which may be described as the receiving surface of the skid, since the pile of bars may be deposited thereon initially by a crane or other suitable means.
  • a substantially horizontal upper surface 32 In front of the receiving surface 32 there are provided on each skid three successively lower substantially horizontal upper surfaces 33, 34, and 35.
  • An inclined surface 31 extends downwardly and forwardly from the receiving surface 32 to the surface 33.
  • An inclined surface 38 extends downwardly and forwardly from the surface33 to a point slightly below the surface 34 and connected thereto by a shoulder 39 which preferably is perpendicular to the surface 38 to form a shallow right-angled notch Ml.
  • an inclined surface 42 extends downwardly and forwardly from the surface v34 to a point slightly substantially horizontal rear portion 41 (Fig. 4)
  • each skid 46 extendsinto the adjacent housing 21 and rests on a transverse roller which is supported by the plate 28.
  • the skids 46 are supported near their front ends on a transverse horizontal beam 52 to which they are suitably secured, and this beam in turn is fastened to the upper ends of two spaced upright struts or columns 53.
  • the lower ends of the struts 53 are pivotally connected to a pair of spaced aligned eccentrics 54 which are formed integral with a main horizontal shaft 55 (Fig. 3) rotatably supported in bearings 55.
  • a reversible electric motor 58 (Fig. 1) is connected to the shaft 55 through a suitable speed-reducing mechanism 59.
  • a lower moving skid 61 is located at one side of each stationary skid 25, preferably on the opposite side thereof from the corresponding upper moving skid 46.
  • Each of these lower moving skids 6! has a top surface shaped to provide an approximately horizontal rear portion 62 (Fig. 6) and an approximately horizontal front portion 63 which is the same distance below the surface 62 as the surface 35 of the stationary skid 25 is below the surface 34 thereof.
  • a shoulder 65 which leads downwardly to a recess 55 located behind the surface 63 and connected thereto by a short rearwardly facing shoulder 65.
  • the front edges of the surfaces 62 and 63 are located near the front edges of the surfaces 34 and 55 respectively of the stationary skid, as best shown in Fig. 2.
  • each skid 6! is considerably lower than the surface 63 and extends beneath the conveyor 25. This portion 88 rests upon a transverse roller 69 which is supported by a plate 15.
  • are supported on a transverse horizontal beam E2 to which they are suitably secured, and this beam in turn is fastened to the upper ends of two spaced upright struts or columns 13.
  • the lower ends of the struts 13 are pivotally connected to a pair of spaced aligned eccentrics 14 which are formed integral with the shaft 55.
  • the eccentrics 74 are displaced 180 degrees with respect to the eccentrics 54, or in other words the two pairs of eccentrics are located on diametrically opposite sides or the axis of the shaft 55.
  • the throw of the eccentrics I4 is much greater than that of the eccentrics 54 and preferably about twice that of the latter.
  • a throw of 1% inches has been provided for the eccentrics and a throw of 2 /2 inches for the eccentrics 14, thus providing horizontal movements of 2%; inches and 5 inches for the upper and lower skids respectively.
  • the surfaces 52 and G3 are parallel with one another, but they have a downward and rearward inclination, particularly when the cocentrics T4 are in their lowermost positions, as shown in Fig. 2. This inclination is preferably such that while a point on the front edge of the surface 53.
  • I preferably provide retractable means or abutments for blocking forward travel of the bars along the upper or receiving surfaces 32 of the stationary skids 25.
  • bell crank levers N3 (Fig. 2) are fulcrumed on certain of the skids 25 by means of pins Tl, these levers having upwardly projecting hooks "18 there on.
  • Fluid actuated motors are connected to the levers i5 so that the levers may be turned about the pins l'i, under the control of the operator, to move the hooks 58 either above or below the skid surfaces 32.
  • a group of fifteen slabs has been shown as deposited on the apparatus by suitable means, such as an overhead crane (not shown). Since the upper moving skids 46 are shown in their raised positions, the slabs are resting upon them, but if these skids were in their lowered positions the slabs would of course rest upon the surfaces 32 of the stationary skids 25. While the slabs may be grouped in various ways, they are shown arranged in three laterally adjacent piles with five slabs in each pile. The operator will first raise the hooks 18 by means of the motors 85 and then start the main shaft 55 rotating in a forward direction. At each rotation of the shaft, the skids 45 will lift the slabs, carry them forwardly, and set them down on the stationary skids 25.
  • suitable means such as an overhead crane (not shown). Since the upper moving skids 46 are shown in their raised positions, the slabs are resting upon them, but if these skids were in their lowered positions the slabs would of course rest upon the surfaces 32 of the stationary skids 25. While the slab
  • slabs may:
  • the opposed relationship of the eccentrics 54 and 14 helps to balance and reduce the load on the driving motor, for during such time as the eccentrics '54 are lifting the upper skids 46 and the bars thereon, the eccentrics 14 will be lowering the lower skids 6
  • the increased throw of the eccentrics 14, as compared with the throw. of the eccentrics 54 provides a greater step-by-step travel for the bars along the front portions of the stationary skids than along the rear portions thereof. This is important in obtaining the desired separation of the bars so that they may be delivered one at a time to the conveyor rollers 2 I.
  • the invention makes it possible to handle heavy metal bars in a very efficient manner without requiring any appreciable manual labor. Even superimposed slabs can be separated from one another. While two sets of moving skids are employed, they are driven from a common shaft, so that the manufacturing cost of the apparatus is not excessive.
  • each stationary skid also has an inclined surface leading downwardly and forwardly from the upper surface to a notch slightly below the level of the lower surface, and in which the first mentioned eccentrics are displaced approximately 180 degrees from the said other eccentrics, so that when the upper moving skids are raised and traveling forwardly to start a bar down the said inclined surfaces the lower moving skids will be beneath the notches and the notches will be open to receive the bar.
  • Apparatus for handling bars comprising a plurality of horizontally spaced parallel stationary skids adapted to support generally horizontal bars extending transversely thereof, each skid being shaped to provide two bar-supporting surfaces one of which is in front of the other and at a lower elevation, upper moving skids associated with the stationary skids and constructed to move bars broadside forwardly along the upper surfaces with a step-by-step movement.
  • lower moving skids separate from the upper moving skids associated with the stationary skids and constructed to move bars broadside forwardly along the lower surfaces with a step-by-stcp movement, and driving means for the moving skids such that the lower moving skids will produce an appreciably greater movement of the bars than the upper moving skids.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Specific Conveyance Elements (AREA)
US84599A 1949-03-31 1949-03-31 Apparatus for handling bars Expired - Lifetime US2597944A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US84599A US2597944A (en) 1949-03-31 1949-03-31 Apparatus for handling bars
GB32575/49A GB662730A (en) 1949-03-31 1949-12-20 Apparatus for handling bars
DEM1324A DE822537C (de) 1949-03-31 1950-01-06 Zubringertisch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84599A US2597944A (en) 1949-03-31 1949-03-31 Apparatus for handling bars

Publications (1)

Publication Number Publication Date
US2597944A true US2597944A (en) 1952-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US84599A Expired - Lifetime US2597944A (en) 1949-03-31 1949-03-31 Apparatus for handling bars

Country Status (3)

Country Link
US (1) US2597944A (de)
DE (1) DE822537C (de)
GB (1) GB662730A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781120A (en) * 1953-10-13 1957-02-12 United Eng Foundry Co Article handling and transfer apparatus
US2995235A (en) * 1959-07-10 1961-08-08 Evans Entpr Inc Apparatus for unscrambling and separating bars
US3208577A (en) * 1961-08-25 1965-09-28 Production Machinery Corp Unscrambler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150743A (en) * 1977-12-27 1979-04-24 Burroughs Corporation Singulation device for mail

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1775121A (en) * 1926-05-11 1930-09-09 French & Hecht Inc Means for conveying articles
US1889039A (en) * 1930-11-14 1932-11-29 Morgan Construction Co Mechanical handling of billets and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1775121A (en) * 1926-05-11 1930-09-09 French & Hecht Inc Means for conveying articles
US1889039A (en) * 1930-11-14 1932-11-29 Morgan Construction Co Mechanical handling of billets and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781120A (en) * 1953-10-13 1957-02-12 United Eng Foundry Co Article handling and transfer apparatus
US2995235A (en) * 1959-07-10 1961-08-08 Evans Entpr Inc Apparatus for unscrambling and separating bars
US3208577A (en) * 1961-08-25 1965-09-28 Production Machinery Corp Unscrambler

Also Published As

Publication number Publication date
GB662730A (en) 1951-12-12
DE822537C (de) 1951-11-26

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