DE479145C - Flexible suction cups for pneumatic sheet feeders consisting of two parts that slide into each other - Google Patents
Flexible suction cups for pneumatic sheet feeders consisting of two parts that slide into each otherInfo
- Publication number
- DE479145C DE479145C DEU9975D DEU0009975D DE479145C DE 479145 C DE479145 C DE 479145C DE U9975 D DEU9975 D DE U9975D DE U0009975 D DEU0009975 D DE U0009975D DE 479145 C DE479145 C DE 479145C
- Authority
- DE
- Germany
- Prior art keywords
- parts
- slide
- suction cups
- pneumatic sheet
- sheet feeders
- 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
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
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0883—Construction of suction grippers or their holding devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
Nachgiebiger, aus zwei ineinander gleitenden Teilen bestehender Sauger für pneumatische Bogenzuführvorrichtungen Nachgiebige, aus zwei ineinander gleitenden Teilen bestehende Sauger an pneumatischen Bogenzuführeorrichtungen sind in verschiedenen Ausführungen bekannt. Sie haben sich jedoch in der Praxis meist nicht bewährt, da der nachgiebige Saugkopf gegen, seine Führung nicht genügend abgedichtet ist, so daß oft ein empfindlicher Verlust an Unterdruck, also an Saugkraft, entsteht. Zur Vermeidung dieses Mißstandes ist bereits auf anderem Wege eine Lösung des Abdichtungsproblems bei Saugern gesucht worden, indem eine bewegliche Umgehungsleitung zwischen dem Innern der Saugerstange und dem Saugkopf vorgesehen worden ist.Flexible suction cup consisting of two parts that slide into one another for pneumatic sheet feeders Flexible, made of two sliding one into the other Parts of existing suckers on pneumatic sheet feeders are in different Executions known. However, they have mostly not proven themselves in practice since the resilient suction head against, its guide is not sufficiently sealed, so that there is often a significant loss of negative pressure, i.e. suction force. To the Avoiding this deficiency is already a solution to the sealing problem in another way has been sought in vacuum cleaners by adding a movable bypass line between the Inside the suction rod and the suction head has been provided.
Gemäß vorliegender Erfindung wird der nachgiebige Teil des Saugers auf höchst einfache und wirksame Weise gegen seine Führung abgedichtet, und zwar unter Benutzung des Druckunterschiedes inner- und außerhalb des Saugers. Auf der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise dargestellt, und zwar zeigen Abb. i einen senkrechten Mittelschnitt und Abb. 2 die Draufsicht.According to the present invention, the resilient part of the nipple sealed in the most simple and effective way against its leadership, namely using the pressure difference inside and outside the teat. On the The drawing shows an embodiment of the invention, for example, and although Fig. 1 shows a vertical center section and Fig. 2 shows the plan view.
a ist die hohle Saugerstange, welche eine der größten Breiten des anzusaugenden Papierbogens entsprechende Anzahl von Saugern b trägt. Letztere sind so geformt, daß die Führung c für den beweglichen Teil f durch den Stutzen d mit dem auf dem Saugrohr sitzenden Teil verbunden ist. Die Durchbohrung des Stutzens d wird durch ein Hahnküken e abgeschlossen, wenn der betreffende Sauger außer Betrieb gestellt werden soll. Der bewegliche Saugkopf trägt am oberen Ende eine durch die Mutter o festgehaltene Ledermanschette g, die sich an die innere Wand des Ansatzes c anlegt. Eine Spiralfeder h hält den Saugkopf normalerweise in seiner unteren Stellung. Teil f ist so leicht in c geführt, daß der Außendruck unter die Manschette g eindringen kann. Oberhalb derselben herrscht während des Ansaugens der durch die Luftpumpe erzeugte Unterdruck, die aufwärts gleitende Manschette wird durch den Außendruck gegen die Wandung von c gepreßt und dadurch eine wirksame Abdichtung herbeigeführt.a is the hollow suction rod, which carries a number of suction cups b corresponding to the largest widths of the sheet of paper to be sucked on. The latter are shaped so that the guide c for the movable part f is connected to the part seated on the suction pipe through the connector d. The piercing of the nozzle d is closed by a cock plug e when the suction cup in question is to be put out of operation. The movable suction head carries at the upper end a leather sleeve g, which is held in place by the nut o and which rests against the inner wall of the attachment c. A spiral spring h normally holds the suction head in its lower position. Part f is guided so easily into c that the external pressure can penetrate under the cuff g. Above the same there is the negative pressure generated by the air pump during suction, the upward sliding cuff is pressed against the wall of c by the external pressure, thereby creating an effective seal.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU9975D DE479145C (en) | Flexible suction cups for pneumatic sheet feeders consisting of two parts that slide into each other |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU9975D DE479145C (en) | Flexible suction cups for pneumatic sheet feeders consisting of two parts that slide into each other |
Publications (1)
Publication Number | Publication Date |
---|---|
DE479145C true DE479145C (en) | 1929-07-10 |
Family
ID=7567019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEU9975D Expired DE479145C (en) | Flexible suction cups for pneumatic sheet feeders consisting of two parts that slide into each other |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE479145C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE931657C (en) * | 1951-04-26 | 1955-08-16 | Ditto | Sheet feeding mechanism, especially for printing machines |
DE954962C (en) * | 1950-12-21 | 1956-12-27 | Dux Ab | Suction nozzle arrangement on pneumatic sheet feed devices for separating and feeding the sheets |
-
0
- DE DEU9975D patent/DE479145C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE954962C (en) * | 1950-12-21 | 1956-12-27 | Dux Ab | Suction nozzle arrangement on pneumatic sheet feed devices for separating and feeding the sheets |
DE931657C (en) * | 1951-04-26 | 1955-08-16 | Ditto | Sheet feeding mechanism, especially for printing machines |
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