US3655182A - Sheet-separation device for sheet working machines - Google Patents

Sheet-separation device for sheet working machines Download PDF

Info

Publication number
US3655182A
US3655182A US23747A US3655182DA US3655182A US 3655182 A US3655182 A US 3655182A US 23747 A US23747 A US 23747A US 3655182D A US3655182D A US 3655182DA US 3655182 A US3655182 A US 3655182A
Authority
US
United States
Prior art keywords
sheet
pile
board
lever
vertical direction
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
US23747A
Other languages
English (en)
Inventor
Alfons Rilinger
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.)
Roto Werke GmbH
Original Assignee
Roto Werke 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 Roto Werke GmbH filed Critical Roto Werke GmbH
Application granted granted Critical
Publication of US3655182A publication Critical patent/US3655182A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices

Definitions

  • ABSTRACT A sheet separation device for sheet working machines, which comprises a pile table having side rails and a sheet feeder movable in the direction of height relative to the pile table. Separating elements overlap the forward edges of the uppermost sheet freely movably guided in vertical direction and laterally adjustable.
  • a setting lever is adapted for adjustment of the separating elements and mounted swingably only about a substantially vertical axis on a complementary of the side rails.
  • An adjustmentand securing-device is disposed likewise swingably on the side rails and operates without steps, and a guide permits movements of the separating elements in vertical direction and is disposed on the forward end of the setting lever,
  • the present invention relates to a sheet separation device for sheet working machines, having a pile board receiving a sheet pile which may have laterally displaceable side rails and which have a feeding device movable relative to the pile board in the direction of its height.
  • separating elements are freely movably guided in vertical direction, which separating elements may be jointly adjustable with the side rails and cover up the front comers of the uppermost sheet, and the separating elements are downwardly pretensioned, as well as laterally adjustable.
  • Sheet separators in the most different embodiments are known for an appreciable time.
  • a known sheet separator at
  • a separating element is coordinated at least to one corner of the pile, which separating element is loaded by a weight in a vertical guide of the pile board is freely movable in vertical direction and has a head, the upwardly and outwardly rounded underside of which engages the corner of the pile, in order to support, on the one hand, the staple and, on the other hand, to permit an arching of the uppermost sheet of the pile during the operation of the sheet feeder, so that it separates from the remaining sheets of the pile, whereupon in case of further operation of the sheet feeder, the arched edges push forwardly and the sheet can be fed as an individual sheet by means of a sheet feeder of a sheet feeding device.
  • the separating elements are designed in form of an angular metal sheet, which engages with its above horizontally bent upper part on the comers of the pile, while a downwardly projecting arm serves the support of the separating element and is secured to a slide which is guided freely movably in vertical guides.
  • These guides are disposed in extensions of the laterally adjustable side rails of the pile board, so that with the setting of the side rails also the separating elements can be set laterally simultaneously.
  • the separating elements are displaceably guided on a common rail, which extends crosswise to the side rails and which slides in their guides.
  • This joint rail is retained with spring tension by a lever.
  • the separating elements are disposed on slides guided in vertical direction in guide plates, while the guide plates in turn are displaceably movable crosswise to the movement of direction of the slides on a joint carrying plate independently from the side walls.
  • the separating element is laterally movably mounted on a guide lever, which takes care of the vertical guidance of the separating element and which guiding lever is pre-tensioned by the effect of a spring or of a weight laterally in the direction towards the pile such, that a lateral angular arrangement of the separating element engages always under a pre-tension in an elastic engagement on the side of the pile.
  • the separating elements are adjustable not only together with the side rails, but can also be varied for the variation of the overlapping width in its position relative to the side rails.
  • the device in accordance with the present invention has a very simple structure, in which all parts cooperating with the separating elements are provided at a setting lever, which in turn is swingably mounted on the side rail.
  • the separating element can be adjusted continuously without steps in its lateral overlapping with the sheet of the pile relative to the side rail. Since the separating element is freely movably guided in the direction of its height, in the guide of the setting lever, the separating element can easily adjust itself to the prevailing pile-height. In some cases one such separating element will sufiice, in spite of the fact that as a rule, two substantially equally designed separating elements of the described type are provided.
  • each separating element or dog has a driver element, which projects into the path of a part movable relative to the pile board, for the insertion of a sheet pile in the direction of the height of the latter.
  • the parts namely the sheet feeder and the staple table cooperating for the separation must'be moved relative to each other in the direction of its height.
  • This relative movement is exploited in accordance with the present invention, in order to put automatically the separating element into a position, in which it cannot prevent the insertion or feeding of a new sheet pile into the machine.
  • the separating element in the case in which the sheet feeder is movable in the direction of its height, can have a driver arm which can be joined upwardly by means of the sheet feeder, so that also in this case, the separating elements are joined automatically for the insertion of a sheet into a releasing position, whereby during lowering of the sheet feeder, the separating elements engage the staple surface sooner, than the sheet feeder, so that both are free from each other in the operative position.
  • FIG. 1 is an elevation, partly in section through the forward part of a sheet separation device, at an enlarged scale;
  • FIG. 2 is a fragmentary top plan view of the device disclosed in FIG. 1;
  • FIG. 3 is a fragmentary top plan view of a second embodiment of a separation device
  • FIG. 4 is a side elevation of still another embodiment of the device designed in accordance with the present invention.
  • FIG. is a side elevation, similar to that shown in FIG. 4, however, in a position, which corresponds with the position for insertion of a new sheet staple.
  • the sheet separation device comprises a pile board 1, which is movable in vertical direction and which automatically adjusts itself to the reducing height of the sheet pile and which can be lowered for the insertion of a new pile into the lowermost position.
  • the pile board 1 are laterally adjustable two side rails, of which only one side rail 2, 3 is shown, which slides with its horizontal arm 3 on the board surface and engages with its vertical arm 2 laterally to the position safely on the staple.
  • a recess 4 is always provided through which the shaft for the sheet feeder can project.
  • a setting lever 18 which can be easily bent in the shown embodiment, in order to provide a swinging edge 20, which engages the outside of the arm 2 and serves as a swinging axis for the two armed levers 18.
  • the one arm of the lever 18 has a recess, with which the lever is put over a pin 21, which serves as a counter-bearing for a pre-tensioned spring 22, which attempts to bring this arm into engagement with the outer face of the arm 2 of the side rail.
  • the other arm has likewise a recess, through, which extends a screw bolt, on which a set screw 23 is arranged, with which the angular position of the lever 18 can be steplessly varied against the pretension of the spring 22.
  • the swinging movements of the lever during the setting movement are indicated by the arrow 24.
  • the swinging lever 24 has a corresponding vertical recess 28, through which the axle of the sheet feeder can project.
  • Thefree end of the lever 18 has a vertical guide slot 19, in which a slide i2 can move, in which slide 12 pins 14 of the slide project through the slot 19, and which is connected, on the one side, with a loading weight 13 and, on the other side, with a separating element 10,
  • the loading Weight 13 is chosen such, that the slide stands continuously under such a pre-tension, that the separating elements engage with a predetermined load on the upper edge 9 of a sheet pile resting on the staple table I.
  • the separating element is inclined and overlaps merely the sheet edge between the lateral limit edge 8 and the forward limit edge 7 of the pile.
  • the position of the forward limit edge 7 is determined by an abutment face 6 of a forward immovably disposed limit metal sheet 5.
  • the separating element 10 can freely adjust itself to the variations of the pile height by guiding it safely always exactly parallel to the front edge of the pile in vertical direction.
  • the required pretension in vertical direction can be set by the selection of the weight 13.
  • a pre-tensioning spring effective in vertical direction, can be provided between the forward end of the lever 18 and the slide 12.
  • a snap-pin 15 is provided on the slide 12, which snap-pin 15 projects forwardly in about the direction of the sheet movement and is forwardly pre-tensioned by a spring 16 into its outermost position.
  • This snap-pin 15 grips snaplike beyond the upper edge 17 of the immovably disposed, forward limiting wall 5, so that this wall 5 withholds the slide 12 by means of the snap-pin 15, if the pile table jointly with the side rail 2, 3 and the lever 18 is lowered downwardly for the insertion of a new sheet pile.
  • the conditions are substantially the same.
  • the setting lever 32 is equipped at its free end with an angular part 33, which extends about parallel to the forward edge of the pile and has in this angular arrangement a vertical guide slot for the slide.
  • the separating element 34 is provided on the slide.
  • the slide is loaded by a weight 33 to the desired extent in vertical direction.
  • a driver pin or dog 15 could be provided in accordance with the embodiment disclosed in FIGS. 1 and 2, which driver pin 15 withholds the slide at the upper edge of the front wall 30, when the board 31 is lowered.
  • FIG. 4 shows the device in its operative position, in which the sheet feeder 42 is supported on the upper edge 53 of the sheet pile, the forward edge 54 of which engages an abutment (not shown).
  • the separating element 48 is supported on the sheet surface 53.
  • the arched comers snap forwardly and slide over the separating element onto the guide 50, as indicated by the point-dotted line 52, until the individual sheet is finally gripped by the pulling-in device 51.
  • a driver arm or dog 49 is provided on the slide, which driver arm 49 projects into the path of the shaft 43 of the sheet feeder 42 and which is joined for upwardly by this shaft upon lifting of the sheet feeder 42, as indicated in FIG. 5.
  • the separating element 48 comes into engagement on the upper face 53 of the pile sooner than the sheet feeder 42, so that the driver 49 is freed from the sheet feeder shaft 43 and a relative disturbance of these parts during the operation is not to be expected.
  • separating elements can be provided in the described manner at both corners of the sheet pile.
  • the separating elements can have a joint operating member, for example, in form of a spindle or a rail or the like.
  • a sheet feeding device for sheet working machines comprising a board for receiving and holding a pile of sheets,
  • a setting lever mounted on each of said rails and being tiltable on an axis vertical in relation to said board by means of an adjusting and locating device
  • said means for assisting separation being mounted in guides in said setting levers for free movement only in the vertical direction.
  • each of said means for assisting separation comprises a dog projecting into the path of said part.
  • the sheet feeding device as set forth in claim 2, including a frame and a front bearing wall secured to said frame,
  • said board being movable with respect to said front bearing wall
  • said dogs comprising pins projecting above the upper edge of said bearing wall in the operating position.
  • a sheet feeding device as set forth in claim 2, including a frame to which said board is secured, and wherein said dogs comprise arms arranged to be entrained upwards by said sheet separator.
  • each of said setting levers comprises a sheet-metal portion including a bend which bears against said side rail fonning a tilting axis, and wherein a spring initially tensioning said lever acts on. one side of said bend, and
  • said adjusting and locating device maintaining said lever in a specific tilted position against the initial tension of said spring, acts on the other side of said lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US23747A 1969-04-01 1970-03-30 Sheet-separation device for sheet working machines Expired - Lifetime US3655182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1916623 1969-04-01

Publications (1)

Publication Number Publication Date
US3655182A true US3655182A (en) 1972-04-11

Family

ID=5729991

Family Applications (1)

Application Number Title Priority Date Filing Date
US23747A Expired - Lifetime US3655182A (en) 1969-04-01 1970-03-30 Sheet-separation device for sheet working machines

Country Status (5)

Country Link
US (1) US3655182A (da)
DE (1) DE1916623B1 (da)
DK (1) DK122379B (da)
FR (1) FR2038133B1 (da)
GB (1) GB1262043A (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429865A (en) 1980-09-11 1984-02-07 Minolta Camera Kabushiki Kaisha Paper feed device
US4595191A (en) * 1983-10-17 1986-06-17 Minolta Camera Kabushiki Kaisha Paper feed device having retractable separating pawls
US4690395A (en) * 1986-03-20 1987-09-01 Owens-Illinois, Inc. Label magazine
US20080224384A1 (en) * 2007-03-16 2008-09-18 Heidelberger Druckmaschinen Ag Method and Apparatus for Processing a Sheet Before the Sheet Transport in the Grip of Grippers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029074A (en) * 1959-02-26 1962-04-10 Heyer Inc Sheet feed control for duplicating machines
US3246891A (en) * 1963-12-19 1966-04-19 Mestre Luis Resistive means for a sheet feeder
US3288460A (en) * 1964-12-31 1966-11-29 Xerox Corp Paper feed mechanism
US3339916A (en) * 1965-03-19 1967-09-05 Addressograph Multigraph Sheet feeding assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106774B (de) * 1957-04-25 1961-05-18 Dick Co Ab Vorrichtung zur Zufuehrung von einzelnen Papierblaettern od. dgl. fuer Vervielfaeltigungs- oder Druckmaschinen
DE1230040B (de) * 1964-09-19 1966-12-08 Zeuthen & Aagaard As Bogenvereinzelungsvorrichtung fuer bogenverarbeitende Maschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029074A (en) * 1959-02-26 1962-04-10 Heyer Inc Sheet feed control for duplicating machines
US3246891A (en) * 1963-12-19 1966-04-19 Mestre Luis Resistive means for a sheet feeder
US3288460A (en) * 1964-12-31 1966-11-29 Xerox Corp Paper feed mechanism
US3339916A (en) * 1965-03-19 1967-09-05 Addressograph Multigraph Sheet feeding assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429865A (en) 1980-09-11 1984-02-07 Minolta Camera Kabushiki Kaisha Paper feed device
US4595191A (en) * 1983-10-17 1986-06-17 Minolta Camera Kabushiki Kaisha Paper feed device having retractable separating pawls
US4690395A (en) * 1986-03-20 1987-09-01 Owens-Illinois, Inc. Label magazine
US20080224384A1 (en) * 2007-03-16 2008-09-18 Heidelberger Druckmaschinen Ag Method and Apparatus for Processing a Sheet Before the Sheet Transport in the Grip of Grippers

Also Published As

Publication number Publication date
DE1916623B1 (de) 1971-02-18
GB1262043A (en) 1972-02-02
DK122379B (da) 1972-02-28
FR2038133A1 (da) 1971-01-08
FR2038133B1 (da) 1976-02-06

Similar Documents

Publication Publication Date Title
US5346197A (en) Manual recording paper insertion mechanism
US4852868A (en) Automatic paper feeding apparatus
US4307878A (en) Cassette type feed apparatus
US3339916A (en) Sheet feeding assembly
US3655182A (en) Sheet-separation device for sheet working machines
US3887178A (en) Sheet feeding assembly including automatic stack replacement and aligning means
US5823525A (en) Methods of and systems for adjustably feeding image-carrying media of various sizes
US2989307A (en) Sheet feeding apparatus
JPH05105243A (ja) シート給送装置
US4429865A (en) Paper feed device
US3369804A (en) Sheet feeding apparatus
US5328167A (en) Sheet feed apparatus
US3210071A (en) Sheet feeding mechanism having corner and center separators
US3520533A (en) Sheet feeding apparatus
JPS61111249A (ja) シ−トホツパ
JPH0725459B2 (ja) シ−ト積重ね装置
US3497206A (en) Sheet feeder
US4577850A (en) Automatic paper feeder for reproducing machine
US3310303A (en) Sheet feeding device with corner separators
USRE25825E (en) Sheet feed control for duplicating machines
US3319956A (en) Sheet feed trays
US4265442A (en) Cassette locking and alignment assembly
WO1990013502A1 (en) Dual mode document feeder
US4330114A (en) Sheet delivery apparatus with horizontal plate
US3588097A (en) Sheet feeding apparatus