DE1561128B1 - DEVICE FOR REMOVING THE BOTTOM SHEET OF A STACK - Google Patents
DEVICE FOR REMOVING THE BOTTOM SHEET OF A STACKInfo
- Publication number
- DE1561128B1 DE1561128B1 DE19671561128 DE1561128A DE1561128B1 DE 1561128 B1 DE1561128 B1 DE 1561128B1 DE 19671561128 DE19671561128 DE 19671561128 DE 1561128 A DE1561128 A DE 1561128A DE 1561128 B1 DE1561128 B1 DE 1561128B1
- Authority
- DE
- Germany
- Prior art keywords
- sheet
- suction
- cardboard
- groove
- stack
- 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.)
- Pending
Links
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
- B65H3/48—Air blast acting on edges of, or under, articles
-
- 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
- B65H3/12—Suction bands, belts, or tables moving relatively to the pile
- B65H3/122—Suction tables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
stens eine Nut 14 in Förderrichtung um eine gewisse Länge nach hinten. Sie wird vorzugsweise eine sehr geringe Tiefe aufweisen. In ihr münden die Sauglöcher 15; hier drei, die der Nut 14 entlang verteilt sind.at least one groove 14 in the conveying direction to the rear by a certain length. She will preferably be a very have a shallow depth. The suction holes 15 open into it; here three, which are distributed along the groove 14 are.
Die Nut 14 erweitert sich kreisförmig um jedes Saugloch 15, das seinerseits von einer kreisförmigen Rippe 16 umgeben ist, welche auf einer der Förderrichtung entsprechenden Achse zwei Unterbrechungen aufweist. Die Höhe der Rippen entspricht der Tiefe der Nut, so daß sie mit der Oberfläche der Platte 9 in Flucht liegen.The groove 14 extends circularly around each suction hole 15, which in turn has a circular Rib 16 is surrounded, which two interruptions on an axis corresponding to the conveying direction having. The height of the ribs corresponds to the depth of the groove, so that they are with the surface of the Plate 9 are in alignment.
Die auf die Bogen ausgeübte Saugwirkung wölbt dieselben leicht in Richtung der soeben genannten Achse, was den untersten Bogen von dem darüberliegenden etwas abhebt (siehe 17 in F i g. 1 und 18 in Fig. 2).The suction exerted on the arches slightly arches them in the direction of that just mentioned Axis, which slightly separates the bottom arch from the one above it (see 17 in FIG. 1 and 18 in Fig. 2).
Durch den zwischen Anschlag 12 und Förderorgan 8,9 gebildeten Spalt bläst bei zurückgezogenem Förderorgan 8,9 in an sich bekannter Weise eine über 20 mit einer Druckluftquelle verbundene Düse 19, welche vor dem Anschlag 12 liegt, Luft in den durch die Saugluft hervorgerufenen Spalt 17 bzw. 18 zwischen die beiden untersten Bogen, wodurch eine einwandfreie Trennung gesichert ist.Through the gap formed between the stop 12 and conveying element 8.9 blows when retracted Conveyor element 8, 9 in a manner known per se a nozzle connected to a compressed air source via 20 19, which is in front of the stop 12, air in the gap 17 or 18 caused by the suction air between the two bottom arches, which ensures perfect separation.
Die kreisförmigen Erweiterungen der Nut haben, wie dies die Praxis eindeutig bestätigt hat, eine Verbesserung des Wirkungsgrades der VorrichtungThe circular enlargements of the groove have, as practice has clearly shown, an improvement the efficiency of the device
ίο gegenüber der bloßen Anwendung von Nuten zur Folge.ίο compared to the mere use of grooves for Episode.
Selbstverständlich soll die Saugwirkung des Förderorgans bei seiner Rückwärtsbewegung abgestellt werden, was allen diesen Vorrichtungen gemeinsam ist.Of course, the suction effect of the conveyor element should be switched off when it moves backwards, what is common to all of these devices.
Das Blasen durch die Düse könnte gleichzeitig auch unterbrochen werden, doch ist es besser, wenn sie ununterbrochen wirkt, da dadurch ein Luftkissen entsteht, das die reibungslose Entnahme der Bogen erleichtert. The blowing through the nozzle could also be stopped at the same time, but it is better if it is continuous works, as this creates an air cushion that facilitates the smooth removal of the sheets.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Förderorgan vorgesehen ist, welches mindestens Erreicht wird, das Ziel der Erfindung in vorteileine Nut aufweist, die sich von seiner Vorder- hafter Weise dadurch, daß sich die Nut um Saugkante aus nach hinten erstreckt und in löcher herum kreisförmig erweitert und um diese welche Sauglöcher münden, dadurch ge- Sauglöcher herum Rippen aufweist, die in der Längskennzeichnef, daß sich die Nut(14) um 15 achse der Nut Unterbrechungen aufweisen und so Sauglöcher (15) herum kreisförmig erweitert und bemessen sind, daß sie mit der Oberfläche des Förderum diese Sauglöcher (15) herum Rippen (16) organs in Flucht liegen. : 'In recognition of this deficiency, the advance device now has set itself the task for the removal of the respective sub 5 lying invention, a Vorsten sheet which rests a stack against a direction for removal of the respective lowermost sheet stop, below which a gap for a stack to create, which is able to provide thick passages of the removed sheet and heavy sheets, in particular cardboard or hen, with a back and forth moved to and fro reliably and reliably to the bottom sheet a corrugated cardboard sheet with noticeable porosity and suction effect isolate and promote.
Conveyor member is provided, which is at least achieved, the object of the invention advantageously has a groove that extends from its front in that the groove extends around the suction edge to the rear and widens circularly into holes and around these which suction holes open , thereby has suction holes around ribs, which in the longitudinal characterization that the groove (14) have interruptions around the axis of the groove and so suction holes (15) are circularly widened and dimensioned that they are with the surface of the conveyor around these suction holes (15) around ribs (16) organs are in alignment.
mindestens eine Nut aufweist, die sich von seiner Dieses Abheben wird zuverlässig auch bei der För-The invention relates to a device. meters into this groove. This creates a minimal deformation of the cardboard that is localized to remove the bottom sheet of a stack in each case on the area of the grooves of a conveyor element and rests against a stop, with a gap that is sufficient for the removal of the sheet to be carried out around the sheet is provided on the conveying sheet, with a moving conveying member that is to be held immovably on the lower organ and, on the other hand, a plucking sheet exerting a suction effect, to lift and lift the lower sheet from the rest of the stack into the conveying element, which causes the areas exposed to the suction air,
has at least one groove that differs from its This lifting is reliable even during the conveying
Vorrichtung gewiß den an sie gestellten Aufgaben Fig. 1 eine teilweise schaubildliche Darstellungsheet-shaped sheet is such a previously known 55 of the accompanying drawings; thereby shows
Apparatus certainly fulfills the tasks set on it. FIG. 1 is a partially diagrammatic representation
buchtung des untersten Bogens einstellen, wodurch Von der vorderen Kante her erstreckt sich minde-to fully adapt to the trough-shaped recess, body 8 with a suction chamber 13, over which a plate 9 provided with suction holes 15, which is perforated by the suction air from the conveyor element, is to be held. At most, only 6 5 that come into contact with the lowest sheet 10 of the stack 11, but comes across the relatively large width, is held back by the stop 12 of the trough-shaped channel,
adjust the indentation of the bottom arch, so that from the front edge there is at least
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH421366A CH435327A (en) | 1966-03-22 | 1966-03-22 | Device for removing sheets one by one from the bottom of a stack |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1561128B1 true DE1561128B1 (en) | 1972-03-09 |
Family
ID=4271897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19671561128 Pending DE1561128B1 (en) | 1966-03-22 | 1967-03-15 | DEVICE FOR REMOVING THE BOTTOM SHEET OF A STACK |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE695192A (en) |
CH (1) | CH435327A (en) |
DE (1) | DE1561128B1 (en) |
ES (1) | ES338815A1 (en) |
FR (1) | FR1515463A (en) |
GB (1) | GB1131908A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0455514A2 (en) * | 1990-05-03 | 1991-11-06 | BELL & HOWELL PHILLIPSBURG COMPANY | Sheet feeder |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844551A (en) * | 1972-10-11 | 1974-10-29 | Bell & Howell Co | Sheet shuttle feed |
DE2915371C2 (en) * | 1979-04-14 | 1984-07-19 | Helmut 4830 Gütersloh Lapp-Emden | Device for separating the sheets of a stack of paper |
US4275877A (en) * | 1979-10-03 | 1981-06-30 | Xerox Corporation | Interrupted jet air knife for sheet separator |
US4270746A (en) * | 1979-10-03 | 1981-06-02 | Xerox Corporation | Sheet separator |
US4305576A (en) * | 1979-10-03 | 1981-12-15 | Xerox Corporation | Sheet separator |
US4284270A (en) * | 1979-10-03 | 1981-08-18 | Xerox Corporation | Stack for bottom sheet feeder |
US4627606A (en) * | 1984-12-13 | 1986-12-09 | Xerox Corporation | Bottom sheet feeding apparatus employing a combination slide plate and vacuum valve |
NL8502185A (en) * | 1985-08-05 | 1987-03-02 | Oce Nederland Bv | SHEET DRAINER. |
CN112830314A (en) * | 2020-12-29 | 2021-05-25 | 中航电测仪器股份有限公司 | Automatic paperboard feeding device and operation method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE566918C (en) * | 1931-07-18 | 1934-03-24 | Alfred Winkler | Device for removing the bottom sheet of a stack of sheets |
DE687556C (en) * | 1936-12-01 | 1940-02-01 | Tord Pallin | Device for separating the bottom sheet from a stack of sheets |
US2392403A (en) * | 1943-07-22 | 1946-01-08 | American Can Co | Sheet separating and feeding mechanism |
US2828126A (en) * | 1954-12-16 | 1958-03-25 | Raymond A Labombarde | Sheet feeding apparatus and method |
US2862709A (en) * | 1955-03-16 | 1958-12-02 | Philip D Labombarde | Machine and method for feeding sheets |
-
1966
- 1966-03-22 CH CH421366A patent/CH435327A/en unknown
-
1967
- 1967-03-08 BE BE695192D patent/BE695192A/xx not_active IP Right Cessation
- 1967-03-15 DE DE19671561128 patent/DE1561128B1/en active Pending
- 1967-03-16 FR FR48421A patent/FR1515463A/en not_active Expired
- 1967-03-18 ES ES338815A patent/ES338815A1/en not_active Expired
- 1967-03-21 GB GB1311967A patent/GB1131908A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE566918C (en) * | 1931-07-18 | 1934-03-24 | Alfred Winkler | Device for removing the bottom sheet of a stack of sheets |
DE687556C (en) * | 1936-12-01 | 1940-02-01 | Tord Pallin | Device for separating the bottom sheet from a stack of sheets |
US2392403A (en) * | 1943-07-22 | 1946-01-08 | American Can Co | Sheet separating and feeding mechanism |
US2828126A (en) * | 1954-12-16 | 1958-03-25 | Raymond A Labombarde | Sheet feeding apparatus and method |
US2862709A (en) * | 1955-03-16 | 1958-12-02 | Philip D Labombarde | Machine and method for feeding sheets |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0455514A2 (en) * | 1990-05-03 | 1991-11-06 | BELL & HOWELL PHILLIPSBURG COMPANY | Sheet feeder |
EP0455514A3 (en) * | 1990-05-03 | 1992-09-02 | Bell & Howell Phillipsburg | Sheet feeder |
Also Published As
Publication number | Publication date |
---|---|
GB1131908A (en) | 1968-10-30 |
CH435327A (en) | 1967-05-15 |
BE695192A (en) | 1967-08-14 |
ES338815A1 (en) | 1968-04-01 |
FR1515463A (en) | 1968-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 |