Apparatus for cooling material to be printed and printing units at sheet fed printing machines with cooled compressed air
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B41F-023/04
B41F-023/00
출원번호
US-0273198
(2002-10-17)
우선권정보
DE-101 52 593(2001-10-24)
발명자
/ 주소
Koch,Michael
Steinborn,Tilo
출원인 / 주소
Koenig &
Bauer AG
대리인 / 주소
Goodwin Procter, LLP
인용정보
피인용 횟수 :
10인용 특허 :
19
초록▼
The present invention relates to an apparatus for cooling material to be printed and printing machine elements at sheet-fed rotary printing machines by means of cooled compressed air. It is an object of the present invention to provide an apparatus which requires little space, is able to cool effect
The present invention relates to an apparatus for cooling material to be printed and printing machine elements at sheet-fed rotary printing machines by means of cooled compressed air. It is an object of the present invention to provide an apparatus which requires little space, is able to cool effectively the material to be printed as well as the machine elements, which are undesirably heated by the dryers. Pursuant to the present invention, this objective is accomplished by providing an apparatus wherein cooled, compressed air is supplied over one or more sheet-guiding devices for guiding the sheets pneumatically along the sheet-guiding path, and a cooling device is disposed in the cross section of flow of the compressed air or the sheet-guiding device.
대표청구항▼
What is claimed is: 1. An apparatus for cooling sheets to be printed and printing machine elements at a sheet-fed printing machine by means of cooled compressed air, said sheet-fed printing machine comprising: at least one transfer drum, at least one printing cylinder; a delivery area; and at least
What is claimed is: 1. An apparatus for cooling sheets to be printed and printing machine elements at a sheet-fed printing machine by means of cooled compressed air, said sheet-fed printing machine comprising: at least one transfer drum, at least one printing cylinder; a delivery area; and at least one dryer; said apparatus being an integrated pneumatic sheet-guiding and cooling assembly comprising: at least one pneumatic sheet-guiding device, disposed in an effective range of said at least one dryer and along a sheet-guiding path, for pneumatically guiding the sheets to be printed along the sheet-guiding path, said at least one pneumatic sheet-guiding device being equipped with a device for supplying fresh compressed air for pneumatic sheet-guiding, and being located in immediate vicinity of said sheet-guiding path, at least one cooling device assigned to said device for supplying fresh compressed air, located in said integrated pneumatic sheet-guiding and cooling assembly for cooling a compressed air stream for pneumatic sheet-guiding, wherein said at least one cooling device is constructed as cooling surfaces in a cross section of said compressed air stream of said device for supplying fresh compressed air, and said cooling surfaces are constructed as a cooling register with lamellar air-guiding elements in a flow direction, through which a coolant flows. 2. The apparatus of claim 1, wherein said at least one pneumatic sheet-guiding device is a blast box and/or an air nozzle part. 3. The apparatus of claim 2, wherein the at least one cooling device is located in at least one blast box and/or at at least one air nozzle part below the at least one transfer drum or above the at least one printing cylinder. 4. The apparatus of claim 1, wherein the at least one device for supplying fresh compressed air are ventilators, air nozzle parts or other pressure generators. 5. The apparatus of claim 1, wherein said cooling surfaces are constructed as lamellar air-guiding elements at ventilators, which extend in a suction air stream of the ventilators or located in the inflowing compressed air jet being supplied into at least one blast box. 6. The apparatus of claim 5, wherein said cooling surfaces in said at least one blast box extend along the compressed air stream over the interior volume of the at least one blast box. 7. The apparatus of claim 5, wherein the cooling surfaces at said at least one air nozzle part are shaped so, that their contour corresponds to the path of the sheets. 8. The apparatus of claim 1, wherein said at least one cooling device is located in said at least one pneumatic sheet-guiding device in the delivery area. 9. The apparatus of claim 1, further comprising an additional sheet-guiding device with a cooling device, the additional sheet-guiding device being disposed for further cooling along the sheet-guiding path. 10. The apparatus of claim 1, further comprising an exhaust device for further cooling, said exhaust device being disposed above the at least one dryer. 11. The apparatus of claim 1, wherein said pneumatic sheet-guiding device is disposed between said at least one dryer and an upstream drying zone or before a subsequent printing zone in a propagation direction of reflected thermal radiation of said at least one dryer in such a manner that an upstream rubber sheet cylinder and a downstream printing cylinder are shielded from hear radiating from said at least one dryer. 12. An apparatus far cooling sheets to be printed and printing machine elements at a sheet-fed printing machine by means of cooled compressed air, said sheet-fed printing machine comprising: at least one transfer drum, at least one printing cylinder; a delivery area; and at least one dryer; said apparatus being an integrated pneumatic sheet-guiding and cooling assembly comprising: at least one pneumatic sheet-guiding device disposed in an effective range of said at least one dryer and along a sheet-guiding path of the sheets, for pneumatically guiding the sheets to be printed along the sheet-guiding path, said at least one pneumatic sheet-guiding device being equipped with a device for supplying fresh compressed air for this purpose, and being located in immediate vicinity of the sheet-guiding path, at least one cooling device, assigned to said device for supplying fresh compressed air, located in said integrated pneumatic sheet-guiding and cooling assembly for cooling an air stream for pneumatic sheet-guiding, wherein said at least one cooling device is constructed as cooling surfaces in a cross section of an air stream of said device for supplying fresh compressed air, and the cooling surfaces are constructed as lamellar elements, through which a coolant flows, extending along the sheet guiding-path with a contour corresponding to the path of the sheets, designed as guiding rods.
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이 특허에 인용된 특허 (19)
Mack Richard Burkhard,DEX ; Zahn Erich Michael,DEX, Device for the transport and deposit of sheets in a stacking region of a rotary press.
Rau Gunnar (Konigsbrunn DEX) Muller Karl H. (Gersthofen DEX), Printing mechanism including means for cooling and means for mounting sleeve shaped forms on transfer and form cylinders.
Kerber Helmut (Rodermark DEX) Mayer Peter (Muhleim am Main DEX), Thermal regulator for a printing form laid about a printing form cylinder for anaqueous offset printing.
Boland, Stuart J.; Fitzsimons, Sean K.; Johnson, Scott; Manchester, William Edward; Walker, Casey E., Drum temperature control for a radiant dryer of a printing system.
Walker, Casey E.; Johnson, Scott; Boland, Stuart J.; Manchester, William Edward; Fitzsimons, Sean K., Low-temperature gas flow insertion in printing system dryers.
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