EP1148009A1 - Arbre à griffes pour un margeur - Google Patents

Arbre à griffes pour un margeur Download PDF

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Publication number
EP1148009A1
EP1148009A1 EP00810349A EP00810349A EP1148009A1 EP 1148009 A1 EP1148009 A1 EP 1148009A1 EP 00810349 A EP00810349 A EP 00810349A EP 00810349 A EP00810349 A EP 00810349A EP 1148009 A1 EP1148009 A1 EP 1148009A1
Authority
EP
European Patent Office
Prior art keywords
shaft
shaft body
torsion bar
torsion
gripper
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.)
Withdrawn
Application number
EP00810349A
Other languages
German (de)
English (en)
Inventor
Günther Silberbauer
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.)
Grapha Holding AG
Original Assignee
Grapha Holding AG
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 Grapha Holding AG filed Critical Grapha Holding AG
Priority to EP00810349A priority Critical patent/EP1148009A1/fr
Publication of EP1148009A1 publication Critical patent/EP1148009A1/fr
Withdrawn legal-status Critical Current

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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
    • B65H5/14—Details of grippers; Actuating-mechanisms therefor

Definitions

  • the invention relates to a gripper shaft according to the preamble of claim 1.
  • Gripper shafts of the type mentioned are known and are used to to seize one batch of printed products and one Subtract stack.
  • the gripper shaft is one example arranged on a rotatingly driven take-off drum.
  • the shaft body with the grippers arranged thereon rotated about its longitudinal axis.
  • To the A toothed pinion is used, for example, to rotate the shaft body, which is placed on one end of the shaft body.
  • To the required Generating gripping force is a torsion spring provided with the shaft body and with the pinion connected is. This torsion spring is usually preloaded and held with a stop. With a stack with high stack pressure can be achieved with such a gripper shaft Difficulty in stripping occurs as required high gripping force cannot be achieved.
  • the invention has for its object a gripper shaft to create the type mentioned, even at very high stack pressure works reliably and safely.
  • the torsion element is a torsion bar. It has been shown that with the gripper shaft according to the invention a significantly higher torsional force and thus a substantial higher gripping force can be achieved. With a torsion bar of 6 mm diameter made of spring steel and a length of For example, about 600 mm can have a torsional force of about 35 Nm can be reached. With the usual torsion springs was one Torsional force up to a maximum of 9 Nm can be achieved.
  • the inventive Gripper shaft can be used with all common feeders and Use it reliably, especially with fold feeders. A folding feeder is, for example, in CH 652 103 A5 Applicant discloses.
  • Another advantage of the gripper shaft according to the invention is that the torsion bar is significantly less wear-resistant than the torsion spring which has been customary up to now. Wear is insignificant even after long use.
  • the gripper shaft according to the invention is very easy to assemble and replace. Further advantageous features result from the dependent claims, the following description and the drawing.
  • the gripper shaft 1 has a shaft body 2, in which a continuous axial bore 22 is incorporated.
  • This bore 22 takes a torsion bar 9 on the at a front end 9a and at one protrudes rear end 9b from the bore 22.
  • the torsion bar 9 has a length of 600 mm, for example Outside diameter of 6 mm and consists for example of Spring steel.
  • the maximum angle of rotation is, for example about 120 °.
  • grippers 3 are spaced apart from one another on the shaft body 2 arranged and in each case by means of a clamping element 4 rotatably connected to the shaft body 2.
  • Each gripper 3 has a finger 5 which, as can be seen in FIG. 1, is bent and has a clamping surface 3a visible in FIG.
  • Such grippers 3 are known per se.
  • Next are on the Shaft body 2 arranged a plurality of bearing rings 23, on which the Shaft 1 is rotatably mounted.
  • the torsion bar 9 is at its rear end 9b by means of a Coupling element 6 fixed with a mounting pin 2a of the shaft body 2 connected.
  • the coupling element 6 is according to Figure 4 firmly on the one hand by means of two clamping screws 8 the shaft body 2 and on the other hand by means of a threaded pin 7 firmly clamped to the torsion bar 9.
  • the coupling element 6 thus connects the rear end 9b of the torsion bar 9 rotatably with the shaft body 2.
  • the front end 9a of the torsion bar 9 is fixed to one Pinion 16 of a drive member 15 connected. This attachment too takes place with a clamping screw 17, which in the figure 3 shown threaded hole 18 is screwed.
  • the pinion 16 3 has an external toothing 16a, which with combs another sprocket, not shown here.
  • the drive element 15 is in accordance with Figure 3 in the direction of arrow 10 placed on the shaft body 2, for this purpose a bearing sleeve 21 is received in a blind bore 24 of the pinion 16.
  • the bore 24 forms with the bearing sleeve 21 a pivot bearing that can be lubricated by means of a nipple 19.
  • a ring 12 On the shaft body 2, a ring 12 is placed, which means a screw 13 can be clamped in any position.
  • This ring 12 has a stop cam 14 with a Stop cam 20 works together.
  • This stop cam 20th 3 has a stop surface 20a.
  • the preload can by appropriate positioning of the coupling element 6 can be set continuously and must be adapted to the application. As can be seen, the preload can be very simple can be set. Retensioning is not necessary and the torsion bar 9 is extremely low-wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP00810349A 2000-04-20 2000-04-20 Arbre à griffes pour un margeur Withdrawn EP1148009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00810349A EP1148009A1 (fr) 2000-04-20 2000-04-20 Arbre à griffes pour un margeur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00810349A EP1148009A1 (fr) 2000-04-20 2000-04-20 Arbre à griffes pour un margeur

Publications (1)

Publication Number Publication Date
EP1148009A1 true EP1148009A1 (fr) 2001-10-24

Family

ID=8174664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810349A Withdrawn EP1148009A1 (fr) 2000-04-20 2000-04-20 Arbre à griffes pour un margeur

Country Status (1)

Country Link
EP (1) EP1148009A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205531A1 (de) * 2013-03-28 2014-10-02 Bayerische Motoren Werke Aktiengesellschaft Kupplungsanordnung
DE102007056880B4 (de) * 2006-12-21 2015-06-03 Heidelberger Druckmaschinen Ag Greiferanordnung an einer Übertragungstrommel zum Fördern eines Bogens in einer Druckmaschine
US20240166459A1 (en) * 2021-03-08 2024-05-23 Bobst Mex Sa Positioning assembly and sheet material processing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057141B (de) * 1957-03-09 1959-05-14 Maschf Augsburg Nuernberg Ag Falzklappensteuerung
DD101353A1 (fr) * 1972-12-28 1973-11-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057141B (de) * 1957-03-09 1959-05-14 Maschf Augsburg Nuernberg Ag Falzklappensteuerung
DD101353A1 (fr) * 1972-12-28 1973-11-12

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007056880B4 (de) * 2006-12-21 2015-06-03 Heidelberger Druckmaschinen Ag Greiferanordnung an einer Übertragungstrommel zum Fördern eines Bogens in einer Druckmaschine
DE102013205531A1 (de) * 2013-03-28 2014-10-02 Bayerische Motoren Werke Aktiengesellschaft Kupplungsanordnung
US9964157B2 (en) 2013-03-28 2018-05-08 Bayerische Motoren Werke Aktiengesellschaft Clutch arrangement
US20240166459A1 (en) * 2021-03-08 2024-05-23 Bobst Mex Sa Positioning assembly and sheet material processing machine
US12492091B2 (en) * 2021-03-08 2025-12-09 Bobst Mex Sa Positioning assembly and sheet material processing machine

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