US1418145A - Sheet-ferding device for high-speed printing presses - Google Patents
Sheet-ferding device for high-speed printing presses Download PDFInfo
- Publication number
- US1418145A US1418145A US529267A US52926722A US1418145A US 1418145 A US1418145 A US 1418145A US 529267 A US529267 A US 529267A US 52926722 A US52926722 A US 52926722A US 1418145 A US1418145 A US 1418145A
- Authority
- US
- United States
- Prior art keywords
- sheet
- suction
- printing presses
- speed printing
- ferding
- 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
Links
- 230000001105 regulatory effect Effects 0.000 description 7
- 210000000056 organ Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0891—Generating or controlling the depression
Definitions
- the working output of high speed sheet printing presses is limited by the action of the automatic sheet feeding mechanism and it is therefore the main object of this invention to increase the capacity of these devices and, in consequence, of the entire press.
- the action of the feeding device may be divided into two stages, viz: removing the sheet from the pile by suction and a corresponding tipping of the suction head, and detaching the sheet from the suction head and the consequent transference onto the apron.
- the work of removing the sheet from the pile requires a certain amount of time which is about equal in most types of presses and feeding devices, and the work of detaching the sheet from the suction head takes place. in the known type of devices by the vacuum being destroyed through connection of the suction head with the atmospheric air.
- the object of the invention now is to very considerably shorten this time and it provides for an arrangement by means of which compressed air, that is to say air of higher than atmospheric pressure, may be introducd into the suction head at the required movement.
- compressed air that is to say air of higher than atmospheric pressure
- the vacuum be-. comes destroyed withgreat rapidity and the transfer of the sheet onto the conveyer is also considerably quickened as compared with the known type of apparatus, as the sheet no longer falls by gravity onto the conveyer but is forced down upon same by means of the air pressure.
- the time taken for the detachment of the sheet from the suction head and for its transference onto the conveyor is very considerably reduced as is also the time required for one rotation of the governor shaft. This, however, means an improved efficiency of the sheet feeding device and, in
- the compressed air is suitably introduced by means of a regulating organ which is adapted to connect the suction and pressure conduit which are provided in most of the high speed printing presses having automatic sheet feeding devices.
- This regulating organ is con trolled by the governor shaft of the machine. It may also be connected with the pressure cutting-off valve of the paper feeding device in such a manner, that compressed air will be able to enter the suction conduit on the pressure being cut off.
- the said regulating organ may be directly actuated by the pressure cutting-01f device.
- a is the suction head which, being rotatably arranged upon the suction pipe I) and in connection with the suction conduit 0, is adapted to rest with its suction nozzle 03 upon the upper sheet of a pile of sheets e.
- - Blowers 7 which, as will be seen from Fig. 2, are arranged at the side of the pile e and in connection with the pressure conduit 9 are adapted to blow compressed air through passages h sideways into the pile in order to loosen the sheets.
- the suction headtips up and thereupon performs a turning movement in known manner in the direction of the conveyer roller z.
- a vacuum sheet feeding device for printing presses the combination with a suction and a pressure conduit of a regulating valve adapted to connect the one to the other, and mechanically controlled means to effect the actuation of the said valve so as to addevice for high.
- a suction condult In a vacuum sheet feedin device for printing presses a suction condult, a pressure conduit, a regulating organ between the suction and the pressure conduit and means to actuate said regulating organ from the governor shaft on the one hand and from the pressure cut-off device on the other hand.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Description
I. FISCHER.
SHEET FEEDING DEVICE FOR HIGH SPEED PRINTING PRESSES.
APPLICATION FILED IN. I4| I922.
Patented May 30, 1922.
UNITED STATES PATENT OFFICE.
JOHANN FISCHER, 0F AUGSIBURG, GERMANY.
Specification of Letters Patent.
Patented May 30, 1922.
Application filed January 14, 1922. Serial No. 529,267.
T 0 all whom it vim-y concern:
Be it known that I, JonANN FISCHER, a citizen of the German Republic, residing at Augsburg, Germany, have invented certain new and useful Improvements in Sheet- Feeding Devices for High-Speed Printing Presses, of which the following is a specification.
The working output of high speed sheet printing presses is limited by the action of the automatic sheet feeding mechanism and it is therefore the main object of this invention to increase the capacity of these devices and, in consequence, of the entire press. The action of the feeding device may be divided into two stages, viz: removing the sheet from the pile by suction and a corresponding tipping of the suction head, and detaching the sheet from the suction head and the consequent transference onto the apron. The work of removing the sheet from the pile requires a certain amount of time which is about equal in most types of presses and feeding devices, and the work of detaching the sheet from the suction head takes place. in the known type of devices by the vacuum being destroyed through connection of the suction head with the atmospheric air.
- Hereby the sheet is caused to fall away from the suction head and, by its own weight, onto the sheet conveyer. These movements, however, require considerable time since the vacuum in the suction head is only slowly destroyed and as the falling down 'of the sheet onto the conveyer takes place very slowly.
The object of the invention now is to very considerably shorten this time and it provides for an arrangement by means of which compressed air, that is to say air of higher than atmospheric pressure, may be introducd into the suction head at the required movement. In this way the vacuum be-. comes destroyed withgreat rapidity and the transfer of the sheet onto the conveyer is also considerably quickened as compared with the known type of apparatus, as the sheet no longer falls by gravity onto the conveyer but is forced down upon same by means of the air pressure. It is evident, that hereby the time taken for the detachment of the sheet from the suction head and for its transference onto the conveyor is very considerably reduced as is also the time required for one rotation of the governor shaft. This, however, means an improved efficiency of the sheet feeding device and, in
consequence, an increased output of the entire press.
According to the invention the compressed air is suitably introduced by means of a regulating organ which is adapted to connect the suction and pressure conduit which are provided in most of the high speed printing presses having automatic sheet feeding devices. This regulating organ is con trolled by the governor shaft of the machine. It may also be connected with the pressure cutting-off valve of the paper feeding device in such a manner, that compressed air will be able to enter the suction conduit on the pressure being cut off. As an alternative, the said regulating organ may be directly actuated by the pressure cutting-01f device.
The invention is illustrated in the accompanying drawings,
Fig. 1 is a general view, partly in section, of the sheet feeding mechanism and Fig. 2 is a section on line A-B of Fig. 1.
In these drawings a is the suction head which, being rotatably arranged upon the suction pipe I) and in connection with the suction conduit 0, is adapted to rest with its suction nozzle 03 upon the upper sheet of a pile of sheets e.- Blowers 7 which, as will be seen from Fig. 2, are arranged at the side of the pile e and in connection with the pressure conduit 9 are adapted to blow compressed air through passages h sideways into the pile in order to loosen the sheets. As soon as a sheet has been lifted the suction headtips up and thereupon performs a turning movement in known manner in the direction of the conveyer roller z. At the moment when a sheet is to be deposited upon the apron a cam, eccentric or the like k on the governor shaft comes into action and lifts, asby means of a lever arrangement Z, the regulating valve m, which is arrangedbetween the presl the sheet becomes immediately released, whereby the action of feeding the sheet is terminated. V
W hat I claim is:
1. In a vacuum feedin speed printing presses inc uding suction and pressure conduits, means for periodically admitting compressed air into the suction conduit for the purpose of effecting a rapid deposit of the sheet from the suction head onto the conveyer device.
2. In a vacuum sheet feeding device for printing presses the combination with a suction and a pressure conduit of a regulating valve adapted to connect the one to the other, and mechanically controlled means to effect the actuation of the said valve so as to addevice for high.
mit air under pressure into the suction conduit at the moment a sheet is to be deposited onto the apron.
3. In a vacuum sheet feedin device for printing presses a suction condult, a pressure conduit, a regulating organ between the suction and the pressure conduit and means to actuate said regulating organ from the governor shaft on the one hand and from the pressure cut-off device on the other hand.
In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses. i
J OHANN FISCHER. Witnesses:
ALEXANDER DE Soro, ANDREW GILCHRIST.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US529267A US1418145A (en) | 1922-01-14 | 1922-01-14 | Sheet-ferding device for high-speed printing presses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US529267A US1418145A (en) | 1922-01-14 | 1922-01-14 | Sheet-ferding device for high-speed printing presses |
Publications (1)
Publication Number | Publication Date |
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US1418145A true US1418145A (en) | 1922-05-30 |
Family
ID=24109183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US529267A Expired - Lifetime US1418145A (en) | 1922-01-14 | 1922-01-14 | Sheet-ferding device for high-speed printing presses |
Country Status (1)
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US (1) | US1418145A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2667420A (en) * | 1950-08-08 | 1954-01-26 | Swift & Co | Method and apparatus for handling sliced food |
US2689124A (en) * | 1950-04-05 | 1954-09-14 | Gen Motors Corp | Transfer mechanism |
US2812061A (en) * | 1953-11-24 | 1957-11-05 | William T Pfister | Automatic, pneumatic (pressure-vacuo), object sorting machine |
US2816755A (en) * | 1951-10-05 | 1957-12-17 | Burroughs Corp | Method and apparatus for making shingled strips |
US2852253A (en) * | 1953-02-26 | 1958-09-16 | Int Standard Electric Corp | Pneumatic tape drive |
US2862707A (en) * | 1954-12-01 | 1958-12-02 | Peter Carmichael And Company L | Sheet transfer apparatus |
US3123354A (en) * | 1964-03-03 | Transporting and stacking sheet-like articles | ||
US3158367A (en) * | 1959-10-23 | 1964-11-24 | Burroughs Corp | Pneumatic sheet separator |
US3273885A (en) * | 1964-06-22 | 1966-09-20 | Purdy Machinery Company Ltd | Mechanism for separating sheets of flexible material from a pack or stack thereof |
US3956987A (en) * | 1973-10-03 | 1976-05-18 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Means for cleaning suction air conduits on printing presses |
US4095781A (en) * | 1976-09-17 | 1978-06-20 | The Mosler Safe Company | Currency dispensing apparatus |
US4210320A (en) * | 1978-01-20 | 1980-07-01 | Windmoller & Holscher | Vacuum control for sheet applicator machines |
US4269406A (en) * | 1979-10-03 | 1981-05-26 | Xerox Corporation | Document handler |
US4494743A (en) * | 1981-08-31 | 1985-01-22 | Docutel Corporation | Dispenser picker apparatus |
DE4011663A1 (en) * | 1990-04-11 | 1991-10-17 | Spiess Gmbh G | BOW FEEDER |
US5657981A (en) * | 1995-09-08 | 1997-08-19 | Ncr Corporation | Sheet separating apparatus for removing sheets one-by-one from at least one stack of sheets |
-
1922
- 1922-01-14 US US529267A patent/US1418145A/en not_active Expired - Lifetime
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123354A (en) * | 1964-03-03 | Transporting and stacking sheet-like articles | ||
US2689124A (en) * | 1950-04-05 | 1954-09-14 | Gen Motors Corp | Transfer mechanism |
US2667420A (en) * | 1950-08-08 | 1954-01-26 | Swift & Co | Method and apparatus for handling sliced food |
US2816755A (en) * | 1951-10-05 | 1957-12-17 | Burroughs Corp | Method and apparatus for making shingled strips |
US2852253A (en) * | 1953-02-26 | 1958-09-16 | Int Standard Electric Corp | Pneumatic tape drive |
US2812061A (en) * | 1953-11-24 | 1957-11-05 | William T Pfister | Automatic, pneumatic (pressure-vacuo), object sorting machine |
US2862707A (en) * | 1954-12-01 | 1958-12-02 | Peter Carmichael And Company L | Sheet transfer apparatus |
US3158367A (en) * | 1959-10-23 | 1964-11-24 | Burroughs Corp | Pneumatic sheet separator |
US3273885A (en) * | 1964-06-22 | 1966-09-20 | Purdy Machinery Company Ltd | Mechanism for separating sheets of flexible material from a pack or stack thereof |
US3956987A (en) * | 1973-10-03 | 1976-05-18 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Means for cleaning suction air conduits on printing presses |
US4095781A (en) * | 1976-09-17 | 1978-06-20 | The Mosler Safe Company | Currency dispensing apparatus |
US4210320A (en) * | 1978-01-20 | 1980-07-01 | Windmoller & Holscher | Vacuum control for sheet applicator machines |
US4269406A (en) * | 1979-10-03 | 1981-05-26 | Xerox Corporation | Document handler |
US4494743A (en) * | 1981-08-31 | 1985-01-22 | Docutel Corporation | Dispenser picker apparatus |
DE4011663A1 (en) * | 1990-04-11 | 1991-10-17 | Spiess Gmbh G | BOW FEEDER |
US5076564A (en) * | 1990-04-11 | 1991-12-31 | George Spiess Gmbh | Sheet feeder |
US5657981A (en) * | 1995-09-08 | 1997-08-19 | Ncr Corporation | Sheet separating apparatus for removing sheets one-by-one from at least one stack of sheets |
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