EP0309815B1 - Vorrichtung zum Zuführen von Bogen an eine bogenverarbeitende Maschine, insbesondere Druckmaschine - Google Patents

Vorrichtung zum Zuführen von Bogen an eine bogenverarbeitende Maschine, insbesondere Druckmaschine Download PDF

Info

Publication number: EP0309815B1
Authority: EP; European Patent Office
Prior art keywords: control; roller; sheet; drum; rotation
Prior art date: 1987-09-17
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

Application number

EP88115031A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0309815A2 (de

EP0309815A3 (en

Inventor

Claus Dieter Barrois

Philipp Andreas Dieterich

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.)

Koenig and Bauer AG

Original Assignee

Koenig and Bauer 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.)

1987-09-17

Filing date

1988-09-14

Publication date

1991-07-17

1988-09-14 Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG

1989-04-05 Publication of EP0309815A2 publication Critical patent/EP0309815A2/de

1989-05-03 Publication of EP0309815A3 publication Critical patent/EP0309815A3/de

1991-07-17 Application granted granted Critical

1991-07-17 Publication of EP0309815B1 publication Critical patent/EP0309815B1/de

2008-09-14 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/14—Retarding or controlling the forward movement of articles as they approach stops

Definitions

the invention relates to a device for feeding sheets to a sheet-processing machine, in particular a printing machine, according to the preamble of claim 1.
a paper feed device which has a conveyor belt in order to feed sheets up to pivotable front marks arranged in parallel, as a result of which the sheet is aligned.
the paper feed device has a pivotable pressure roller which can be brought into contact with a driven conveyor roller in cycles.
the control of the pressure roller and the front marks takes place via a cam which is attached to the cylinder to which the sheet is to be fed, so that the control of the pressure roller and front marks is dependent on the peripheral speed of the cylinder mentioned.
the contact time period of the pressure roller with the conveyor roller can be changed.
the change is made by preloading a compression spring, and thus changing the spring characteristic or spring force.
the compression spring is supported at one end on a lever carrying the pressure roller and at the other end on one with the control cam in operating contact removable control lever.
a change in the contact time of the pressure roller with the conveyor roller for example by increasing the spring preload, has the result that the pressure roller is pressed faster against the conveyor roller and is later lifted off again, whereby a sheet lying between the pressure roller and conveyor roller is accelerated earlier and longer. For this reason, the sheet to be fed also hits paper stops of the sheet grippers of the cylinder.
the device shown in DE-OS 33 19 753 is based on the disadvantage that an extension of the contact time of the pressure roller with the conveyor roller leads to an advance in the start time for the sheet acceleration.
An earlier impact of the sheet on the paper stops is associated with an unfavorable angular position of the gripper pads to the sheet, i.e. the sheet does not strike the paper stops tangentially to the circumference of the cylinder, as a result of which its leading edge is permanently deformed, particularly in the case of thin sheets, which leads to registration difficulties in the further course of printing.
the invention has for its object to provide a device for feeding a sheet to a printing cylinder with which the bias of the sheet (bulk) can be adjusted without changing the arrival time of the sheet on the cylinder.
the advantages that can be achieved with the invention lie in particular in that the sheet always hits tangentially to the circumference of the impression cylinder on paper stops of the gripper row of the impression cylinder and that the bag of the sheet can also be adjusted during the sheet feeding.
the adjustment of the bag not only ensures that the sheet is gripped securely and in register, but also has a noise-reducing effect. Adjustment during sheet feeding avoids machine downtimes.
the paper feed device 1 shown in FIG. 1 is arranged between a printing cylinder 2 and a conveyor belt 3.
the conveyor belt 3 wraps around a drive roller 4 and is driven by this.
the drive roller 4 is rotatably mounted in a known manner in side frames 5 of the paper feed device 1.
the drive roller 4 is driven in a known and therefore not detailed manner from the main drive of the printing press with a small transmission ratio, so that the conveying speed of the conveyor belt 3 is somewhat higher, than the peripheral speed of the printing cylinder 2.
the paper feed device 1 has, inter alia, a two-part sheet guide plate 6, 7 arranged in the extension of a conveying plane 10, on which a sheet 8 is conveyed directly to the printing cylinder 2.
the first sheet guide plate 6 has a plurality of through bores 9 arranged next to one another transversely to the conveying direction.
the second sheet guide plate 7 is a comb plate and has a number of adjacent recesses 11 through which grippers 12 arranged on the pressure cylinder 2 are guided.
the grippers 12 cooperate with gripper pads 15, each of which has a sheet stop 14.
the grippers 12 are shown in Fig. 1 in two positions I, II.
the position I indicates the moment when the sheet 8 strikes the sheet stop 14 almost tangentially on the circumference of the printing cylinder 2.
Position II marks the gripper closure and the tangential pulling of the sheet 8 from the conveying plane 10.
a photocell 20 is arranged, which detects whether a flow of sheets 8 is interrupted or not.
An acceleration roller 16 is arranged in a gap 13 between the sheet guide plates 6, 7 and its jacket 17 protrudes a little beyond the conveying plane 10 of the sheet guide plates 6, 7.
the acceleration roller 16 is driven with a small ratio from the main drive of the printing press, so that its Peripheral speed is a little higher (approx.1.27 times) than that of the printing cylinder 2.
the acceleration roller 16 there are a number of swiveling pressure rollers 18 which are arranged next to one another transversely to the conveying direction.
the pressure rollers 18 are each rotatably mounted on a first end 19 of levers 21. With a second end 22, the levers 21 are fastened to an outer tube 23 of a coaxial shaft.
the outer tube 23 is rotatably mounted on an inner part 24 of the coaxial shaft.
the inner part 24 of the coaxial shaft which is rotatably mounted in the side frame 5 of the paper feed device 1, has a number of bores 26 in the axial direction, that is to say transversely to the conveying direction, into each of which a lever 27 is firmly inserted.
the outer tube 23 of the coaxial shaft has as many slots 28, so that the levers 27 are freely pivoted through the slots 28.
the levers 27 are arranged approximately parallel to the levers 21 and carry 29 front marks 31 at their ends.
the front marks 31 protrude a little into the recesses 11 of the comb plate 7 in the downwardly pivoted position.
the outer tube 23 and the inner part 24 of the coaxial shaft are except for the levers 21; 27 still with two control levers 36; 35 firmly connected.
the control levers 36, 35 each have at their end 37; 40 a receptacle 38; 45 for a tension spring 39; 50 on that to apply a restoring force on Side frame 5 is attached.
the control lever 36 has a pin 41 on which a control roller 42 is rotatably mounted.
the control roller 42 is in constant contact with the surface area 43 of a control drum 44 by the force of the tension spring 39.
the control drum 44 is secured in a rotationally fixed manner by a feather key 46, but is axially displaceable on a right end 48 of a single-turn shaft 47, so that the control roller 42 also all surface areas 43 of the control drum 44 can be brought into contact.
the control roller 42 it is also possible to arrange the control roller 42 in an axially displaceable manner in order to bring it into contact with all surface regions 43 of the control drum 44.
the single-turn shaft 47 is rotatably supported with its center 49 in the side frame 5 of the drive side.
a left end 51 of the single-turn shaft 47 carries a rotationally and displaceably, another control cam 52, which is in constant contact with a control roller 54.
the control roller 54 is rotatably fastened to the control lever 35 and controls the movement of the front marks 31.
the drive pinion 56 is driven together with a shaft 57 for the acceleration roller 16, via a gear 58, by the main drive 59 of the printing press.
the control drum 44 is axially displaceable on the single-turn shaft 47 by means of an adjusting spindle 61.
the adjusting spindle 61 is one in a vertical part 62 to the side frame 5 screwed horizontal cross member 63 rotatably.
the adjusting spindle 61 has a thread 64 which is in screw contact with a threaded bore 66 of a cuboid-shaped adjusting element 67.
the threaded bore 66 is arranged exactly in the middle of a bottom 68 of the actuating element 67.
the actuating element 67 lies with an upper side 65 on a lower side 70 of the cross member 63 and has a horizontal counterbore 75 which coaxially surrounds a hub 69 of the control drum 44.
a roller bearing 71 which is also able to absorb axial forces, establishes the connection between the actuating element 67 and the control drum 44.
the adjusting spindle 61 has a knurled head 72 which facilitates manual operation of the adjusting spindle 61.
the adjusting spindle 61 can also be connected to the shaft of a servomotor, so that remote adjustment is also possible.
the control drum 44 is a cylindrical body with a radius R, which has a recess 73 with a smaller radius r on its circumference.
the recess 73 is long as the control drum and has an opening or switching angle ⁇ which changes continuously along an axis of rotation 77 of the control drum 44.
⁇ opening or switching angle
the control roller 42 of the control lever 36 dips into this recess 73 with each revolution of the single-turn shaft 47 and runs on the surface region 43 with the smaller radius r.
the recess 73 has a first axis-parallel control line 74 and a second, non-parallel control line 76, however, arranged with a constant radius r to the axis of rotation 77.
the control lines 74, 76 indicate the position of the pressure rollers 18 relative to the acceleration rollers 16. When the control roller 42 crosses the control line 74, the pressure rollers 18 are pressed onto the acceleration rollers 16 “acceleration on”. When the control roller 42 crosses the control line 76, the pressure rollers 18 move away from the acceleration rollers 16 “acceleration off”.
the opening or switching angle ⁇ of the recess 73 in the control drum 44 is, as shown in FIG. 3, larger at a front edge 91 of the control drum 44 than at a rear edge 92.
the control drum 44 is rounded in all surface areas 43 so that the contact the control roller 42 with the control drum 44 is guaranteed over the full rotation of the single-turn shaft 47 and impacts that would result from lifting and placing the control roller 42 on sharp edges are avoided.
the photocell 20 is connected to an electromagnet 81 by means of a switching relay 79.
the electromagnet 81 has a shift rod 82 which can be moved out or in and which is articulated with an upper end 83 to a first end 84 of a coupling 86.
the coupling 86 is connected in a rotationally fixed manner by means of a second end 87 to an actuating shaft 88 mounted in the side frames 5.
two blocking cams 89 are attached at a distance. The blocking cams 89 each engage directly on the control lever 36 for the pressure rollers 18 or on the control lever 35 for the front marks 31 and block a pivoting movement of the control lever 35 when the photocells 20 signal an interruption in the sheet feed flow.
the adjusting spindle 61 rotated clockwise or counterclockwise. Rotation of the adjusting spindle 61, for example clockwise, causes the adjusting element 67 to be displaced and, associated therewith, the control drum 44 to be displaced to the right. The control roller 42 thereby comes into continuous contact with other surface areas 43 of the control drum 44.
the control roller 42 In a surface area 43 near the front edge 91, the control roller 42 is in contact longer due to the larger opening or switching angle ⁇ (for example 30 ° -100 °) with the smaller radius r of the control drum 44 than in a surface area 43 in the vicinity of the rear edge 92. It follows that the pressure roller 18 is also in contact with the acceleration roller 16 for a correspondingly longer time. This means that the start for the acceleration of a sheet 8 always remains constant and only the end of acceleration and thus the total acceleration duration changes.
⁇ for example 30 ° -100 °

Landscapes

Delivering By Means Of Belts And Rollers (AREA)
Registering Or Overturning Sheets (AREA)
Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

EP88115031A 1987-09-17 1988-09-14 Vorrichtung zum Zuführen von Bogen an eine bogenverarbeitende Maschine, insbesondere Druckmaschine Expired - Lifetime EP0309815B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19873731216 DE3731216A1 (de)	1987-09-17	1987-09-17	Vorrichtung zum zufuehren von bogen an eine bogenverarbeitende maschine, insbesondere druckmaschine
DE3731216		1987-09-17

Publications (3)

Publication Number	Publication Date
EP0309815A2 EP0309815A2 (de)	1989-04-05
EP0309815A3 EP0309815A3 (en)	1989-05-03
EP0309815B1 true EP0309815B1 (de)	1991-07-17

Family

ID=6336210

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88115031A Expired - Lifetime EP0309815B1 (de)	1987-09-17	1988-09-14	Vorrichtung zum Zuführen von Bogen an eine bogenverarbeitende Maschine, insbesondere Druckmaschine

Country Status (6)

Country	Link
US (1)	US4892301A (ja)
EP (1)	EP0309815B1 (ja)
JP (1)	JPH01127536A (ja)
CS (1)	CS274479B2 (ja)
DD (1)	DD282438A5 (ja)
DE (2)	DE3731216A1 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8929365D0 (en) *	1989-12-30	1990-02-28	Alcatel Business Systems	Article feeding
DE4414445A1 (de) *	1994-04-26	1995-11-09	Heidelberger Druckmasch Ag	Taktrolle zum Transport von Bogen in eine bogenverarbeitende Maschine
DE4439092C2 (de) *	1994-11-02	1998-06-10	Heidelberger Druckmasch Ag	Vorrichtung zum Zuführen von Bogen
JP4429939B2 (ja) *	2005-03-10	2010-03-10	株式会社東芝	画像形成装置
JP4468844B2 (ja) *	2005-03-10	2010-05-26	株式会社東芝	画像形成装置、シート搬送方法
JP4440146B2 (ja) *	2005-03-10	2010-03-24	株式会社東芝	画像形成装置
JP4342461B2 (ja) *	2005-03-10	2009-10-14	株式会社東芝	画像形成装置
JP4401986B2 (ja) *	2005-03-10	2010-01-20	株式会社東芝	画像形成装置、シート搬送方法
JP2007333068A (ja) *	2006-06-14	2007-12-27	Toyota Motor Corp	サーモバルブ
JP2009083476A (ja) *	2007-09-13	2009-04-23	Komori Corp	シート状物の案内装置
JP7141950B2 (ja) *	2017-02-09	2022-09-26	日本製紙株式会社	ゴム組成物およびその製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3630519A (en) *	1969-12-17	1971-12-28	Xerox Corp	Document feed apparatus
CA940148A (en) *	1970-07-30	1974-01-15	Miller Printing Machinery Co.	Apparatus for registering and feeding sheets to a sheet fed printing press
US3888129A (en) *	1974-02-21	1975-06-10	Illinois Tool Works	Sheet acceleration and synchronization mechanism
CH641114A5 (de) *	1979-10-17	1984-02-15	Grapha Holding Ag	Bogenanleger.
DE3107807C2 (de) *	1981-02-28	1983-01-20	Georg Spiess Gmbh, 8906 Gersthofen	Bogenbeschleunigungsvorrichtung
JPS58181536U (ja) *	1982-05-31	1983-12-03	リョービ株式会社	両面印刷機の給紙装置
NL8503203A (nl) *	1985-11-21	1987-06-16	Oce Nederland Bv	Inrichting voor het transporteren van een bundel vellen.

1987
- 1987-09-17 DE DE19873731216 patent/DE3731216A1/de active Granted
1988
- 1988-09-13 DD DD88319741A patent/DD282438A5/de not_active IP Right Cessation
- 1988-09-13 US US07/243,729 patent/US4892301A/en not_active Expired - Fee Related
- 1988-09-14 DE DE8888115031T patent/DE3863736D1/de not_active Expired - Fee Related
- 1988-09-14 EP EP88115031A patent/EP0309815B1/de not_active Expired - Lifetime
- 1988-09-16 CS CS619488A patent/CS274479B2/cs unknown
- 1988-09-16 JP JP63230188A patent/JPH01127536A/ja active Granted

Also Published As

Publication number	Publication date
DD282438A5 (de)	1990-09-12
CS274479B2 (en)	1991-04-11
DE3731216A1 (de)	1989-04-13
CS619488A2 (en)	1990-09-12
JPH0559023B2 (ja)	1993-08-30
EP0309815A2 (de)	1989-04-05
DE3863736D1 (de)	1991-08-22
DE3731216C2 (ja)	1989-07-13
JPH01127536A (ja)	1989-05-19
EP0309815A3 (en)	1989-05-03
US4892301A (en)	1990-01-09

Legal Events

Date	Code	Title	Description
1989-02-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-03-14	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1989-04-05	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT SE
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1989-10-18	17P	Request for examination filed	Effective date: 19890819
1991-01-23	17Q	First examination report despatched	Effective date: 19901210
1991-02-21	ITF	It: translation for a ep patent filed	Owner name: DE DOMINICIS & MAYER S.R.L.
1991-05-31	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1991-07-17	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT SE
1991-08-02	ET	Fr: translation filed
1991-08-22	REF	Corresponds to:	Ref document number: 3863736 Country of ref document: DE Date of ref document: 19910822
1991-09-04	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1992-05-23	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1992-05-23	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1992-07-15	26N	No opposition filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 88115031.2
1998-11-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19981123 Year of fee payment: 11
1999-08-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19990817 Year of fee payment: 12
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2000-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000701
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2000-09-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20000929
2001-05-02	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20000914
2001-05-21	EUG	Se: european patent has lapsed	Ref document number: 88115031.2
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2005-09-14	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050914

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DE69307840T2 (de)	1997-07-24	Auslage für Bogendruckmaschine
EP0309815B1 (de)	1991-07-17	Vorrichtung zum Zuführen von Bogen an eine bogenverarbeitende Maschine, insbesondere Druckmaschine
EP0213397B1 (de)	1989-07-26	Federnder Greifer für Bogenrotationsdruckmaschinen
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