EP1148008B1 - Greiferwelle zum Greifen von Druckprodukten - Google Patents
Greiferwelle zum Greifen von Druckprodukten Download PDFInfo
- Publication number
- EP1148008B1 EP1148008B1 EP00810350A EP00810350A EP1148008B1 EP 1148008 B1 EP1148008 B1 EP 1148008B1 EP 00810350 A EP00810350 A EP 00810350A EP 00810350 A EP00810350 A EP 00810350A EP 1148008 B1 EP1148008 B1 EP 1148008B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripper
- shaft
- drum
- grippers
- shaft body
- 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
- 230000033001 locomotion Effects 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/50—Machine elements
- B65H2402/54—Springs, e.g. helical or leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
- B65H2403/512—Cam mechanisms involving radial plate cam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/10—Ensuring correct operation
- B65H2601/12—Compensating; Taking-up
- B65H2601/122—Play
Definitions
- the invention relates to a gripper drum of an investor a gripper shaft according to the preamble of claim 1.
- Gripper shafts are used especially for pulling sheets or inserts off a stack from a feeder and deliver to an opening device.
- An investor with two such gripper shafts is, for example, from CH 652 103 A5 and US 4,241,907 A.
- the gripper shaft is rotated about its longitudinal axis.
- Grippers arranged on the gripper shaft grip such a rotary movement each have an arc on the underside of the stack and press it against a support of the gripper drum.
- To turn the gripper shaft is, for example Drive with a spur gear and a closed one Curve provided.
- the gripper shaft is accelerated with each closing process and through the play on the control curve and the gearing changed the direction of the spur gear. After this The turning point would like to continue rotating the shaft and that The game is moved to the opposite outside of the curve. Now hit the grippers on the support of the gripper drum on, the wave springs back within the game.
- the grippers in particular remove thin printed sheets released briefly and can no longer be grasped properly become. As a result of this brief release, there is the risk of printing sheets being pulled off at an angle. moreover can cause printed sheets to slip off the grippers Processing interruption.
- the known gripper shaft prone to failure and as a result Disruptions can significantly decrease the net performance.
- the invention has for its object in a gripper drum of the type mentioned at the beginning the drive play between the control track and the grippers repealed.
- This task is in a gripper drum according to claim 1 solved.
- the game is at the toothing and the closed curve by means of the compensation spring canceled.
- a closing movement a Counter torque of 6 Nm, for example.
- This will a jumping of the gripper is avoided and it can be a gentle one Guaranteed closing movement for gripping the printed products become.
- the printed sheets can thus be securely held in position on the Peeled from the bottom of a stack.
- This also applies to a stack with a very high stack pressure, in which one a correspondingly high gripper force is required.
- the safe one Gripping process enables a higher net performance and accordingly less interference.
- the compensation spring with each closing movement by one Swing lever is tensioned, which is rotatably connected to the shaft body the gripper shaft is connected.
- the compensation spring is preferably with the gripper shaft and the shaft of the gripper drum connected. When the gripper shaft is turned, the compensation spring automatically tensioned. The tension is easier Way by changing the position of the pivot lever adjustable on the gripper shaft.
- Figures 1 and 2 show a gripper drum 1, which in one otherwise not shown investors is arranged and around a Shaft 7 is driven.
- the gripper drum 1 is with flange stops 8, of which only one is shown here a machine frame not shown here.
- On the Several gripper disks 22 to 24 are arranged on shaft 7 which at a distance from the shaft 7 has a rotatable gripper shaft 2 is stored.
- the gripper shaft 2 has a shaft body 26 on which several grippers 3 are rotatably attached. In Figures 1 and 2 only two of these grippers 3 are shown here.
- the Drive is designed so that the shaft body 26 with the Grippers 3 with each revolution of the gripper drum 1 Closing movement and an opening movement.
- the grippers 3 in the rest position and in the figure 2 shown in the working position.
- the movement takes place by a rotary movement of the shaft body 26 about its longitudinal axis.
- the shaft body 26 in on known tensioned by means of a torsion spring, the is connected to the shaft body 26.
- Torsion springs known.
- a compensation spring 9 arranged, which has two spring elements 10, which are spaced parallel to each other and each on are attached at one end to an axle 19 or 30.
- the attachment takes place with mounting plates 17, each with a screw 18 on the axis 19 and 30 are clamped.
- the axis 19 is rotatable in a bearing 20 of a holding plate 15 stored and this plate 15 is by means of a clamping part 16 and clamping screws 14 rotatably connected to the shaft 7.
- the axis 30 sits in a pivot bearing 21 and this is also non-rotatably connected with two pivot levers 11, which with Clamping parts 12 and clamping screws 13 firmly with the shaft body 26 are connected.
- the Cancellation of the game has the consequence that the gripper 3 at The closing movement does not spring back from the supports 28 and so that a gentle closing is guaranteed. Because the grabs 3 do not spring back, the sheets 29 can be held more securely become.
- the suitable counter moment can be determined by tests become. The counter moment can be changed in a simple manner are released by the pivot lever 11 and on the shaft body 26 are rotated.
- the spring elements 10 are spiral springs here, it is clear to the person skilled in the art that the spring elements could also be designed differently. It is essential Structure of a counter moment during a closing movement.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Discharge By Other Means (AREA)
Description
- Fig. 1
- eine Teilansicht einer erfindungsgemässen Greifertrommel mit einer Greiferwelle, wobei die Greiferwelle in der Ruhestellung ist,
- Fig. 2
- eine Greifertrommel gemäss Figur 1, wobei die Greiferwelle jedoch in der Arbeitsstellung ist,
- Fig. 3
- eine räumliche Ansicht einer Kompensationsfeder.
Claims (3)
- Greifertrommel eines Anlegers mit einer Greiferwelle zum Greifen von Druckprodukten (29), bei der die Greiferwelle (2) einen durch eine Steuerbahn über einen Antrieb gesteuerten Wellenkörper (26) aufweist, auf dem mehrere Greifer (3) angeordnet sind und der zum Greifen der Druckprodukte (29) um seine Längsachse verdrehbar ist, dadurch gekennzeichnet, dass zur Aufhebung des Antriebsspiels zwischen Steuerbahn und Greifern (3) dem Antrieb eine mit der Greifertrommel (1) verbundene Verspannvorrichtung mit einer während der Drehung der Wellenkörper (26) ein Gegendrehmoment bildende Kompensationsfeder zugeordnet ist, so dass die Greifer (3) in ihrer Arbeitslage einen Druckbogen (29) gegen eine periphere Mantelfläche (28) der Greifertrommel (1) pressen.
- Trommel nach Anspruch 1, dadurch gekennzeichnet, dass die Kompensationsfeder (9) wenigstens einen Schwenkhebel (11) aufweist, der mit dem Wellenkörper (26) der Greiferwelle (2) drehfest verbunden ist und der bei jeder Schliessbewegung wenigstens ein Federelement (10) spannt.
- Trommel nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Kompensationsfeder (9) spiralförmig ausgebildete Federelemente (10) aufweist, die jeweils an einem Ende mit dem Wellenkörper (26) der Greiferwelle (2) und mit dem anderen Ende mit einer Welle (7) der Greifertrommel (1) wirkverbunden sind.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00810350A EP1148008B1 (de) | 2000-04-20 | 2000-04-20 | Greiferwelle zum Greifen von Druckprodukten |
| DE50003100T DE50003100D1 (de) | 2000-04-20 | 2000-04-20 | Greiferwelle zum Greifen von Druckprodukten |
| JP2001119946A JP4926333B2 (ja) | 2000-04-20 | 2001-04-18 | 印刷製品をグリップするためのグリッパー軸 |
| US09/838,559 US6547240B2 (en) | 2000-04-20 | 2001-04-20 | Gripper drum for gripping printed products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00810350A EP1148008B1 (de) | 2000-04-20 | 2000-04-20 | Greiferwelle zum Greifen von Druckprodukten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1148008A1 EP1148008A1 (de) | 2001-10-24 |
| EP1148008B1 true EP1148008B1 (de) | 2003-07-30 |
Family
ID=8174665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00810350A Expired - Lifetime EP1148008B1 (de) | 2000-04-20 | 2000-04-20 | Greiferwelle zum Greifen von Druckprodukten |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6547240B2 (de) |
| EP (1) | EP1148008B1 (de) |
| JP (1) | JP4926333B2 (de) |
| DE (1) | DE50003100D1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1700803B1 (de) * | 2005-03-10 | 2008-05-28 | Müller Martini Holding AG | Vorrichtung zum Oeffnen und Ablegen eines gefalzten Bogens |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806111A (en) * | 1972-09-27 | 1974-04-23 | Motter J Printing Press Co | Signature inserter |
| IT991860B (it) * | 1973-07-25 | 1975-08-30 | Nebiolo Spa | Macchina rotativa da stampa per fogli singoli |
| CH617905A5 (de) * | 1977-05-30 | 1980-06-30 | Grapha Holding Ag | |
| US4241907A (en) * | 1979-04-09 | 1980-12-30 | Mccain Manufacturing Corporation | Signature machine having an adjustable timing control of the extraction means |
| CH652103A5 (de) * | 1981-09-22 | 1985-10-31 | Grapha Holding Ag | Anleger fuer falzbogen. |
| US4564186A (en) * | 1984-06-04 | 1986-01-14 | R. R. Donnelley & Sons Company | Apparatus for gathering printed signatures for saddle stitching |
| US4681213A (en) * | 1985-10-23 | 1987-07-21 | Harris Graphics Corporation | Gripper assembly |
| DE59806548D1 (de) * | 1998-09-28 | 2003-01-16 | Grapha Holding Ag | Vorrichtung zum Ablegen von gefalzten Bogen auf eine Transportvorrichtung |
-
2000
- 2000-04-20 EP EP00810350A patent/EP1148008B1/de not_active Expired - Lifetime
- 2000-04-20 DE DE50003100T patent/DE50003100D1/de not_active Expired - Lifetime
-
2001
- 2001-04-18 JP JP2001119946A patent/JP4926333B2/ja not_active Expired - Fee Related
- 2001-04-20 US US09/838,559 patent/US6547240B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1148008A1 (de) | 2001-10-24 |
| DE50003100D1 (de) | 2003-09-04 |
| JP2002029645A (ja) | 2002-01-29 |
| JP4926333B2 (ja) | 2012-05-09 |
| US6547240B2 (en) | 2003-04-15 |
| US20020060424A1 (en) | 2002-05-23 |
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