US3664662A - Drive for a roller bed mounted behind the cross-cut shears in a shearing line for metal plates - Google Patents

Drive for a roller bed mounted behind the cross-cut shears in a shearing line for metal plates Download PDF

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Publication number
US3664662A
US3664662A US42689A US3664662DA US3664662A US 3664662 A US3664662 A US 3664662A US 42689 A US42689 A US 42689A US 3664662D A US3664662D A US 3664662DA US 3664662 A US3664662 A US 3664662A
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United States
Prior art keywords
rollers
roller bed
section
direct current
over
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Expired - Lifetime
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US42689A
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English (en)
Inventor
Peter Alois Linz
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Moeller and Neuman GmbH
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Moeller and Neuman GmbH
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    • 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
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/287—Devices for handling sheet or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/006—Accessories for shearing machines or shearing devices for obtaining pieces of a predetermined length, e.g. control arrangements

Definitions

  • the rollers of the roller bed in the first group may be connected or driven in common While upon the crossing of plates over the joint between the two roller groups either individually and/ or in groups the rollers of the second group driven with three-phase current are switched over by light barriers or the like in an additive matter on the advancing mode of the rollers driven with direct current.
  • the invention relates to a drive for a roller bed mounted behind the cross-cut shears of a shearing line for metal sheets and plates consisting of a first roller bed portion operated with direct current, or a direct current section, for positioning the plates over the desired cutting length and of a second roller bed portion, or three-phase section, whose rollers are operated with three-phase current for delivering the metal plates, for example to a stacking apparatus.
  • both successively mounted roller bed sections are driven in a manner to obtain a travel of the plates over the joint which is as slip-free as possible so that they operate at about equal feeding speed and are similar also in their acceleration and braking mode, for example by a speed feedback between direct current and three-phase current roller bed motors.
  • the electrically operated rollers of the direct current section are generally arranged to be connected individually in order to deliver during the positioning of the plates before making a cross-cut a plate located already at the end of the direct current section in one movement and independently of the forward mounted rollers of the non-regulated and continuously moving three-phase section, which participate in a positioning operation in a slip-free manner.
  • This plate crosses then over the threephase section whose rollers are arranged so that they may be connected or driven in common to the stacking apparatus.
  • both roller bed sections are made at least as long as the maximum length of the metal plates, that the roller bed rollers of the direct current section may be connected or drivenin common, so that all the metal plates carried by them are transported corresponding to the advance pace controlled for positioning the plates to be cut, and that the roller bed rollers of the three-phase section may be switched over individually and/ or in groups during the period when the plates cross 3,664,662 Patented May 23, 1972 over the joint by signals from detector devices mounted ahead of them which signal the crossover of the plates, such as light barriers or the like, in an additive manner on the advancing mode of the direct current section.
  • rollers of the three-phase section are preferably switched over from the constant operation (run-off connection) to the feeding mode of the direct current section (feeding connection).
  • the plates whose end has crossed over the joint between the direct current section and the threephase section travel in an uninterrupted fashion to the stacking apparatus although they travel themselves over detector devices.
  • the change-over signals of the detector devices are thus suppressed in the case where not all the previous detector devices, including the first detector device, signal the cross-over of a plate.
  • the accomapnying drawing illustrates by way of a circuit diagram an embodiment of a drive for the roller bed of cross-cut shears according to the invention.
  • a feeding roller bed with a direct current drive of its rollers 4 is indicated by a line shown at Z and is located in front of the cross-cut shears 2.
  • the roller bed which connects the cross-cut shears 2 with a stacking device 6 comprising magnetic rollers consists of a section 6 operated by a direct current drive (direct current section) and a section D operated by a three-phase drive of the rollers (three-phase section).
  • Each of the sections G and D' is at leastlas long as the maximum plate length to be cut.
  • the three-phase section D consists of individually driven and connectable rollers 20, 21, and subsequent roller groups 22, 24 etc. to 26 which may be connected in pairs.
  • a feeding line 30 may be supplied with three-phase current, and from this line parallel branch lines 32, 34, 36 and 38 can lead olf and may be connected over switches 33, 35, '37 and 39 to the motors of the rollers 20 through 24.
  • rollers 20 and 21 are connected through lines 32 respectively 34 with line 30, while the roller pairs 22 and 24 (and other roller pairs up to 26 not shown) are connected over the switches 37 and 39 to a run-otf line 40, from which parallel branch lines 42, 44, 46 and 48 lead to the second contacts of the change-over switches 33, 35, 37, 39.
  • the last roller pair 26 is constantly connected over line 49 with the run-off line 40, which is connected over a main switch 50 to the three-phase circuit.
  • the switch 50 lies in this respect parallel to switch 28 for feeding the plates to the three-phase section.
  • Detector devices in the form of light barriers 52, 54, 56 and 58 are mounted in the roller bed in front of the rollers 10, 21, 22 and 24, and emit signals to the relays 6'2, 64, 66 and 68 upon the cross-over of a plate, e.g. B2, the relays changing the switches 33, 35, 37 and 39 from the base position as shown for the switches 37 and 39 into the position shown for the switches 33 and 35. It will be understood that the light barriers 52, 54 which control these switches 33 and 35, are blocked off by the plate B2.
  • the light barrier 58 (and others not illustrated) is actually blocked off by a departing plate B3 but in the signal lines between the light barriers 54 through 58 and subsequent ones interrupter switches 55 through 59 are provided, which are actuated by the relay of the preceding light barrier and are closed only in the case where the particular preliminary relay receives a signal. This is the case only when the interrupter switch is closed before the particular preliminary relay and simultaneously the associated light barrier is blocked off.
  • the illustration of the switches 15, 14 and 28 with the auxiliary contacts a, 14a and 28a has the following significance:
  • the switches 14 and 28 are in the on position.
  • the coupled switches 14, 28 are temporarily placed on the contacts 14a and 28a so that a counter-current braking etfect occurs in order to rapidly brake the rollers during positioning of the plates.
  • auxiliary feed-back contacts 15a, 14a In view of the fact that such switching is known they could be illustrated diagrammatically by the auxiliary feed-back contacts 15a, 14a
  • any conventional electrical advancing device may be pro- 'Vlded, e.g. with a measuring roller which may be set for a nominal value of the desired cutting length.
  • the switches 13, 15, 14 and 28 are not manually operated as illustrated but are connected through relays in a known manner.
  • the advancing mode of the direct current section G is fed to the auxiliary three-phase supplied feeding current 30 through 32, 34, 36, 38 over the coupling of the threephase switch 28 to the direct current switch 14, but the three-phase rollers 22, 24 are thereby still not afl'ccted because their switches 37 and 39 in the base position are still connected to the run off line 40.
  • the plate B3 which is connected to the run off line would, because it covers the light barrier 54 and perhaps additional light barriers of succeeding two member groups of roller bed rollers, be included also in the advancing rhythm of the direct current section, unless the gates with the interrupter switches 55, 57, 59 etc. were provided, which are opened and kept open, if even a single preceding light barrier is not blocked off, which is the case when there is a gap between two plates.
  • the uncovered light barrier 56 although its interrupter 57 is closed, if it receives no signal current maintains not only switch 37 connected to the run off line 40 but maintains also the interrupter 59 open. In this way the signal of the light barrier 58 is suppressed although the light barrier is blocked off.
  • this light barrier takes over the initiation of the closing of the interrupters 55, 57, 59 etc. for the additive connection of three-phase rollers to the advancing mode of the direct current section as well as in a sort of chain reaction the opening of these interrupters when the light barrier 52 is crossed over by the rear edge of the plate. All the switches 33, 35, 37, 39 etc. are thereby changed over in the base position to the run otf line 40 or are blocked in this position until a new plate crosses over the light barrier 52 and the additive connection of threephase rollers to the feeding line 30 begins again.
  • a drive for a roller bed disposed behind the crosscut shears of a shearing line for metal plates comprising:
  • detector devices mounted in front of each individually controlled roller of said second roller bed section for detecting the presence of a plate moving in a direction from said first to said second roller bed section and for producing a signal indicating the presence of a plate approaching one of said rollers
  • a drive for a roller bed disposed behind the crosscut shears of a shearing line as recited in claim 1 including:
  • said first roller bed section including a first portion of rollers disposed directly after the cross-cut shears and a second portion of rollers comprising the remaining rollers of said first roller bed section,
  • said first portion being selectively connectable for common control in a first control mode with said front rollers and in a second control mode with said second portion.
  • a drive for a roller bed disposed behind the crosscut shears of a shearing line for metal plates comprising:
  • detector devices mounted in said second roller bed section for detecting the presence of a plate moving in a direction from said first to said second roller bed section and for producing a signal indicating the presence of an approaching plate
  • said first roller bed section including a first portion of rollers disposed directly after the cross-cut shears and a second portion of rollers comprising the remaining rollers of said first roller bed section,
  • said first portion being selectively connectable for common control in a first control mode with said front rollers and in a second control mode with said second portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)
  • Details Of Cutting Devices (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US42689A 1969-06-02 1970-06-02 Drive for a roller bed mounted behind the cross-cut shears in a shearing line for metal plates Expired - Lifetime US3664662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691928019 DE1928019A1 (de) 1969-06-02 1969-06-02 Antrieb fuer einen hinter der Teilschere einer Scherenlinie fuer Bleche angeordneten Rollgang

Publications (1)

Publication Number Publication Date
US3664662A true US3664662A (en) 1972-05-23

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ID=5735861

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Application Number Title Priority Date Filing Date
US42689A Expired - Lifetime US3664662A (en) 1969-06-02 1970-06-02 Drive for a roller bed mounted behind the cross-cut shears in a shearing line for metal plates

Country Status (6)

Country Link
US (1) US3664662A (Direct)
JP (1) JPS5018637B1 (Direct)
DE (1) DE1928019A1 (Direct)
FR (1) FR2052460A5 (Direct)
GB (1) GB1308025A (Direct)
PL (1) PL71753B1 (Direct)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697771A (en) * 1986-09-22 1987-10-06 Majors Anthony P Refuse receptacle for receiving disposable refuse bags
US8974270B2 (en) 2011-05-23 2015-03-10 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US9067301B2 (en) 2005-05-16 2015-06-30 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
US9138862B2 (en) 2011-05-23 2015-09-22 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US9199357B2 (en) 1997-04-04 2015-12-01 Chien-Min Sung Brazed diamond tools and methods for making the same
US9221154B2 (en) 1997-04-04 2015-12-29 Chien-Min Sung Diamond tools and methods for making the same
US9238207B2 (en) 1997-04-04 2016-01-19 Chien-Min Sung Brazed diamond tools and methods for making the same
US9409280B2 (en) 1997-04-04 2016-08-09 Chien-Min Sung Brazed diamond tools and methods for making the same
US9463552B2 (en) 1997-04-04 2016-10-11 Chien-Min Sung Superbrasvie tools containing uniformly leveled superabrasive particles and associated methods
US9475169B2 (en) 2009-09-29 2016-10-25 Chien-Min Sung System for evaluating and/or improving performance of a CMP pad dresser
US9724802B2 (en) 2005-05-16 2017-08-08 Chien-Min Sung CMP pad dressers having leveled tips and associated methods
US9868100B2 (en) 1997-04-04 2018-01-16 Chien-Min Sung Brazed diamond tools and methods for making the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410066A1 (de) * 1984-03-19 1985-09-26 Siemens AG, 1000 Berlin und 8000 München Transport- und positioniereinrichtung zum abrichten von walzgut
EP0326001A3 (en) * 1988-01-28 1991-04-03 PEDDINGHAUS CORPORATION a Corporation under the laws of the State Delaware Workpiece handling system for reduced length segment production

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697771A (en) * 1986-09-22 1987-10-06 Majors Anthony P Refuse receptacle for receiving disposable refuse bags
US9199357B2 (en) 1997-04-04 2015-12-01 Chien-Min Sung Brazed diamond tools and methods for making the same
US9221154B2 (en) 1997-04-04 2015-12-29 Chien-Min Sung Diamond tools and methods for making the same
US9238207B2 (en) 1997-04-04 2016-01-19 Chien-Min Sung Brazed diamond tools and methods for making the same
US9409280B2 (en) 1997-04-04 2016-08-09 Chien-Min Sung Brazed diamond tools and methods for making the same
US9463552B2 (en) 1997-04-04 2016-10-11 Chien-Min Sung Superbrasvie tools containing uniformly leveled superabrasive particles and associated methods
US9868100B2 (en) 1997-04-04 2018-01-16 Chien-Min Sung Brazed diamond tools and methods for making the same
US9067301B2 (en) 2005-05-16 2015-06-30 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
US9724802B2 (en) 2005-05-16 2017-08-08 Chien-Min Sung CMP pad dressers having leveled tips and associated methods
US9475169B2 (en) 2009-09-29 2016-10-25 Chien-Min Sung System for evaluating and/or improving performance of a CMP pad dresser
US8974270B2 (en) 2011-05-23 2015-03-10 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US9138862B2 (en) 2011-05-23 2015-09-22 Chien-Min Sung CMP pad dresser having leveled tips and associated methods

Also Published As

Publication number Publication date
PL71753B1 (Direct) 1974-06-29
GB1308025A (en) 1973-02-21
FR2052460A5 (Direct) 1971-04-09
DE1928019A1 (de) 1970-12-17
JPS5018637B1 (Direct) 1975-07-01

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