US3395912A - Separating and transporting piled metal sheets - Google Patents

Separating and transporting piled metal sheets Download PDF

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Publication number
US3395912A
US3395912A US546879A US54687966A US3395912A US 3395912 A US3395912 A US 3395912A US 546879 A US546879 A US 546879A US 54687966 A US54687966 A US 54687966A US 3395912 A US3395912 A US 3395912A
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US
United States
Prior art keywords
sheets
magnetic field
sheet
pile
transporting
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
US546879A
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English (en)
Inventor
Tappolet Karl Heinrich
Gerspacher Alfred
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.)
Tagers Fa GmbH
TAGERS G M B H Firma
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Tagers Fa GmbH
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 Tagers Fa GmbH filed Critical Tagers Fa GmbH
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Publication of US3395912A publication Critical patent/US3395912A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/06—De-stacking from the bottom of the stack
    • B65G59/061—De-stacking from the bottom of the stack articles being separated substantially along the axis of the stack
    • B65G59/066—De-stacking from the bottom of the stack articles being separated substantially along the axis of the stack by means of rotary devices or endless elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/76—Making of isolation regions between components
    • H01L21/761—PN junctions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate

Definitions

  • ABSTRACT OF THE DISCLOSURE A process and apparatus for separating and transporting metal sheets from a pile wherein the endmost sheet is separated from the pile by forces applied to opposite edges of the sheet for elastically bending the sheet, whereby the sheet is lifted and separated from the pile. The elastic bending forces are then released to permit the separated sheet to return to its original configuration. The sheet is then'subjected to a magnetic field having force lines substantially parallel to the plane of the sheet, which magnetic field maintains the separated sheets in a substantially parallel and spaced relationship. The sheets are then individually removed from the magnetic field by suitable conveyor means.
  • the invention concerns the gripping and separation of the sheets of a pile of metal sheets, as well as the transporting of the individual sheets to a place of work.
  • a reliable gripping and especially separation of the sheets of a pile of metal sheets, as well as the transportation of the individual sheets to a place of work is very significant for all those sheet metal processing methods which use metal sheets from a pile, especially for those processes in which an unintentional adhering of several sheets to each other would lead to serious damage of the processing machines and to production losses.
  • this is attained by the fact that a plurality of the lower or upper sheets of the pile are exposed to a bending force and are thereby elastically bent, whereupon they are released and exposed to the infiuence of a magnetic field having generally horizontal force lines, said magnetic field serving to keep the sheets at a distance from each other, whereupon the first sheet is seized and transported out of the magnetic field.
  • the bending force according to the invention not only causes the removal of sheets off the pile of metal sheets, but, due to the shifting of the sheets with respect to each other, also eliminates any adhesion existing between adjacent sheets and the sticking-together of their cut edges. Sheets separated in such a way are kept at a distance from each other under the influence of a horizontal magnetic field, thus efiecting a reliable separation of the sheets which guarantees the engagement of the next sheet and its transportation out of the magnetic field.
  • the first sheet in the horizontal middle plane of the magnetic field is engaged by mechanical means and is transported out of said magnetic field.
  • This guarantees the possibility of transporting each sheet present in the magnetic field out of said magnetic field even when no more sheets are moved from the sheet metal 13,395,912 Patented Aug. 6, 1968 pile into the magnetic field.
  • This is explained by the fact that each individual sheet endeavours to occupy the horizontal middle plane of the magnetic field and will, therefore, move into that position after the previous sheet has been engaged in the horizontal middle plane of the magnetic field and transported from this field.
  • a further object of the invention is to provide an apparatus for carrying out this process, including a frame serving for the guiding and storage of the metal sheet pile, whereby the pile is supported by two opposite supporting elements or edges.
  • One known device for the gripping and separation as well as transportation of the sheets of a metal sheet pile is provided with suction cups which seize the lowermost sheets of said metal sheet pile and move them downward over the supporting edges.
  • suction cups which seize the lowermost sheets of said metal sheet pile and move them downward over the supporting edges.
  • a pair of shafts which form the supporting elements which form the supporting elements, the shafts of which partially extend into the region of the metal sheet pile and each has at least one longitudinal groove for receiving the sheet ends, whereby the two shafts are rotated in opposite directions and at the same phase relationship with regard to their longitudinal grooves, and by means of two magnets located below the pair of shafts and a transporting arrangement at least extending to the horizontal middle plane of the magnetic field.
  • the arrangement of the magnets below the pair of shafts which support the sheet ends by means of the longitudinal grooves is advantageous because of the fact that, after the shafts have subjected the sheets to the bending force and thereafter released them, the sheets can drop into the magnetic field by utilizing the force of gravity.
  • FIGURE 1 is a schematic view illustrating the steps of the new process
  • FIGURE 2 is a vertical central sectional view through an apparatus according to the invention.
  • FIGURE 3 is a sectional view along line III-III of FIGURE 2;
  • FIGURE 4 is a sectional view along line IVIV of FIGURE 2.
  • FIG- URE 1 The schematic diagram of the process shown in FIG- URE 1 illustrates the preferable transportation route of 3 the sheets from the metal sheet pile into the magnetic field, that is to say, from above to below.
  • the opposite route can also be used.
  • the lowermost sheets 1 of metal sheet pile 2 are, as shown by the two opposite arrows A, exposed to a bending force.
  • sheets 1 are separated from the pile 2 and, due to their stiffness, are shifted with respect to each other, whereby the adhesion between them is eliminated, and also the cut edges of the sheets which may be hooked on each other are freed from each other.
  • the sheets are released, as shown at 1a, and drop into a magnetic field existing between magnets 3, said magnetic field having essentially horizontal force lines, to keep the sheets at a distance b from each other.
  • the first sheet 1c is seized and transported out of the magnetic field by the transporting elements 4.
  • the indicated mechanical means 4 for the transportation of the sheets out of the magnetic field may, for example, be an endless conveyor belt formed in such a way that it moves the sheets in a direction perpendicular to the plane of the sheet of drawing.
  • a second and preferred manner of transportation consists in transporting the first sheet out of the magnetic field in a downward direction, that is to say, in the direction of arrow C.
  • the distance b of the sheets from each other in the magnetic field represents, among other things, a function of the number of sheets present in the magnetic field. The more sheets present in the magnetic field, the smaller is the existing distance b. It is evident that the number of sheets brought into the magnetic field has to correspond with the number of sheets transported out of the magnetic field to assure constancy of the distance b of the sheets from each other, once this distance has been chosen and providing the field intensity remains the same. The reasons for the fact that the magnetic field keeps the sheets present in this field at a distance from each other are known from the theory of magnetism.
  • the metal sheet pile shown in the drawing consists, for example of sheets, for instance tin-coated steel sheets, that are to be processed into can bodies, by first forming these sheets into bodies and then welding the sheet ends or joining them by folding and soldering.
  • FIGURE 2 illustrates an apparatus for carrying out the new process, which includes a frame 5 serving for guidance and storage of metal sheet pile 2.
  • the pile is supported by two opposite support elements.
  • these support elements are formed by a pair of shafts 6 which partially, advantageously up to half of their diameter, extend into the space below the metal sheet pile.
  • Each shaft has at least one longitudinal groove 7, two longitudinal grooves being provided in each shaft in the illustrated embodiment, for engaging the sheet ends.
  • the two shafts 6 are rotated in opposite directions E and F and at the same phase relationship as regards their longitudinal grooves 7, whereby the opposite edges of the sheet are simultaneously engaged by and moved at the same speed at the grooves 7.
  • Two magnets 3 are arranged below the pair of shafts and there is also provided a transporting device 8, which at least extends between the magnets to the horizontal middle plane of the magnetic field.
  • the transporting device 8 of the embodiment shown in the drawing and preferably, consists of two vertical, synchronously driven worms 9 of the same pitch, which are arranged opposite to each other and at least extending to the horizontal middle plane of the magnetic field.
  • These worms which are located respectively between the legs 3a of magnets 3 which magnets have a U-shaped cross section (see FIGURE 3), engage with their worm flights 9a the nearest sheet 1c and transport it out of the magnetic field in a downward direction.
  • the worm flights 9 seizing the sheets have to have a pitch which is smaller than the distance b of the sheets from each other in the magnetic field in order to guarantee the seizure of only one sheet at a time.
  • a preferable model of the worm has worm flights with a pitch 9b enlarging from the top toward the bottom.
  • the enlargement of the distance between the sheets transported out of the magnetic field resulting from this is advantageous for the further transportation of the sheets to the place of work, for example by means of a second, endless conveyor device 10 which is arranged vertical to the axes of worms 9 at the end of the transporting route of the latter and which receives the sheets released by worms 9b.
  • this second hauling device consists of a magnetic conveyor belt which holds the sheets reliably in their position on belt 10 during the further transportation (arrows D in FIGURE 3).
  • Process for gripping and separating the sheets of a metal sheet pile, as well as for transporting the individual sheets to a place of work comprising the steps of subjecting at least one sheet at one end of the pile to a bending force and thereby elastically bending the sheet for separating same from the pile, releasing the bending force, then exposing the separated sheets to the influence of a magnetic field with essentially horizontal force lines so that said magnetic field keeps the sheets completely separated from each other, and then engaging one of said separated sheets and transporting it out of the magnetic field.
  • An apparatus for gripping and separating the sheets of a metal sheet pile, as well as for transporting the individual sheets to a place of work comprising:
  • a frame for guiding and storing the metal sheet pile, a pair of shafts forming support elements for supporting the pile, said shafts partially extending into the region of the metal sheet pile and each shaft having at least one longitudinal groove for engaging of the sheet ends, the two shafts being rotatable in opposite directions and at the same phase relationship with regard to their longitudinal grooves, two horizontally spaced magnets located on the other side of the pair of shafts from the pile for creating a horizontal magnetic field and a transporting device extending at least to the horizontal middle plane of the magnetic field.
  • the transporting device comprises two vertical, synchronously driven worms with the same pitch, said worms being arranged opposite each other and at least extending to the horizontal middle plane of the magnetic field.
  • a second, endless transporting device is arranged transversely to the axes of the worms and is located at the end of the transporting route of the latter.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Bipolar Transistors (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US546879A 1966-01-15 1966-05-02 Separating and transporting piled metal sheets Expired - Lifetime US3395912A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DET0030267 1966-01-15
DE19691952614 DE1952614A1 (de) 1966-01-15 1969-10-18 Verfahren zur Herstellung einer Halbleitervorrichtung

Publications (1)

Publication Number Publication Date
US3395912A true US3395912A (en) 1968-08-06

Family

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Family Applications (1)

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US546879A Expired - Lifetime US3395912A (en) 1966-01-15 1966-05-02 Separating and transporting piled metal sheets

Country Status (8)

Country Link
US (1) US3395912A (ja)
JP (1) JPS495678B1 (ja)
BE (1) BE692402A (ja)
CH (1) CH446188A (ja)
DE (1) DE1952614A1 (ja)
FR (2) FR1514371A (ja)
GB (2) GB1114217A (ja)
NL (2) NL6700492A (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527457A (en) * 1968-01-02 1970-09-08 Honeywell Inc Document picker
US4058305A (en) * 1975-09-25 1977-11-15 Rank Xerox Ltd. Paper feeding device
US4306355A (en) * 1979-09-21 1981-12-22 General Battery Corporation Method and apparatus for automatically installing covers on lead-acid battery cells
US5407187A (en) * 1992-06-13 1995-04-18 Tetra Laval Holdings & Finance S.A. Apparatus for separating stacked sheets using rotatable, recessed shafts and vacuum members
CN107186044A (zh) * 2017-08-02 2017-09-22 石狮市森科智能科技有限公司 一种基于五金压铸件的冲切收集装置
US9914599B2 (en) * 2015-12-04 2018-03-13 GM Global Technology Operations LLC Systems, processes and apparatuses for automated handling of non-ferrous metal objects
CN110816978A (zh) * 2019-11-18 2020-02-21 云南省机械研究设计院 一种包装盒分页折盒装置及预折机
CN114226984A (zh) * 2021-12-06 2022-03-25 湖北三维半导体集成创新中心有限责任公司 一种晶圆的切割方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503606A (en) * 1968-01-30 1970-03-31 Joseph M Castellanet Signature feeder
US3942653A (en) * 1971-07-27 1976-03-09 Owens-Corning Fiberglas Corporation Method and apparatus for processing
JPS50148884A (ja) * 1974-05-20 1975-11-28
GB1533965A (en) * 1977-04-06 1978-11-29 Inst Fiz An Latvssr Device for magnetically arranging ferromagnetic components at preset distances from one another
JPS5559406U (ja) * 1978-10-18 1980-04-22
JPS5568218U (ja) * 1978-11-02 1980-05-10
JPS5589217U (ja) * 1978-12-15 1980-06-20
FR2457564A1 (fr) * 1979-05-23 1980-12-19 Thomson Csf Transistor pnp pour circuit integre bipolaire et son procede de fabrication
DE3804946A1 (de) * 1988-02-18 1989-08-31 Tetra Pak Rausing & Co Kg Verfahren und vorrichtung zum vereinzeln von ebenen teilen
JPH042419U (ja) * 1990-04-23 1992-01-10
EP0485343A1 (de) * 1990-11-06 1992-05-13 Willi Maschinenbau Ag Abstapel- und Auffächervorrichtung für biegsame blattförmige Gegenstände
CN112476946B (zh) * 2020-09-23 2022-06-21 宁波韵升粘结磁体有限公司 一种充磁磁钢自动注塑的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911884A (en) * 1931-11-05 1933-05-30 American Sheet & Tin Plate Sheet feeder
US2848227A (en) * 1955-09-12 1958-08-19 Harris Intertype Corp Separation of piled metal sheets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911884A (en) * 1931-11-05 1933-05-30 American Sheet & Tin Plate Sheet feeder
US2848227A (en) * 1955-09-12 1958-08-19 Harris Intertype Corp Separation of piled metal sheets

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527457A (en) * 1968-01-02 1970-09-08 Honeywell Inc Document picker
US4058305A (en) * 1975-09-25 1977-11-15 Rank Xerox Ltd. Paper feeding device
US4306355A (en) * 1979-09-21 1981-12-22 General Battery Corporation Method and apparatus for automatically installing covers on lead-acid battery cells
US5407187A (en) * 1992-06-13 1995-04-18 Tetra Laval Holdings & Finance S.A. Apparatus for separating stacked sheets using rotatable, recessed shafts and vacuum members
US9914599B2 (en) * 2015-12-04 2018-03-13 GM Global Technology Operations LLC Systems, processes and apparatuses for automated handling of non-ferrous metal objects
US9926146B2 (en) * 2015-12-04 2018-03-27 GM Global Technology Operations LLC Magnetodynamic apparatus and method for separating non-ferrous conductive blanks
CN107186044A (zh) * 2017-08-02 2017-09-22 石狮市森科智能科技有限公司 一种基于五金压铸件的冲切收集装置
CN107186044B (zh) * 2017-08-02 2019-03-15 石狮市森科智能科技有限公司 一种基于五金压铸件的冲切收集装置
CN110816978A (zh) * 2019-11-18 2020-02-21 云南省机械研究设计院 一种包装盒分页折盒装置及预折机
CN114226984A (zh) * 2021-12-06 2022-03-25 湖北三维半导体集成创新中心有限责任公司 一种晶圆的切割方法
CN114226984B (zh) * 2021-12-06 2022-11-18 湖北三维半导体集成创新中心有限责任公司 一种晶圆的切割方法

Also Published As

Publication number Publication date
FR1514371A (fr) 1968-02-23
NL6700492A (ja) 1967-07-17
JPS495678B1 (ja) 1974-02-08
FR2031061A5 (ja) 1970-11-13
GB1114217A (en) 1968-05-22
DE1952614A1 (de) 1971-05-13
GB1328145A (en) 1973-08-30
CH446188A (de) 1967-10-31
BE692402A (ja) 1967-07-10
NL7015232A (ja) 1971-04-20

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