专利摘要:
A blowing arrangement for a sheet-delivering device of a sheet-processing machine has a plurality of blowing nozzles arranged to be located above a sheet-delivering device and spaced from one another in a direction which is transverse to the sheet-transportation direction and at an angle to the sheet-transportation plane so as to blow air contrary to the sheet-transportation direction and between a sheet placed in the sheet stack and a sheet transported to the latter, wherein the blowing nozzles are also arranged at diverging angles to the sheet-transportation direction as considered in the sheet-transportation plane.
公开号:SU1046190A1
申请号:SU797771007
申请日:1979-12-26
公开日:1983-10-07
发明作者:Ханс Циммерманн;Фритц Пипер;Герд Вирт;Хартмут Нагел
申请人:Феб Полиграф Лейпциг (Инопредприятие);
IPC主号:
专利说明:

ig. 1 "/ 4/4 The invention relates to an air-blower device in sheet-wiping devices for sheet-processing of all machines, and in particular printing machines. In sheet processing machines, for example printing machines, the sheets are transported after printing with the grapples in the sheet one device through the receiving slide, released and laid out on the receiving slipway. The formation of stocks has been especially supported by pneumatic systems at high vehicle speeds and large formats. Pneumatic devices are known to support the formation of stocks (the patented patent DD is 203,953), which consists of blower tubes that are arranged longitudinally above the receiving slip and by means of which compressed air is blown down from the top part of the laid out sheet. displace the air cushion located between the upper edge of the stocks and the sheet. The located suction elements and the side zones of the rear edge of the stocks are sucked off the air between the receiving stocks and the sheet. With the help of suction elements, the rear edge of the laid out sheet is rapidly moving from the sheet feeding path, since compressed air does not sufficiently affect the rear edge from above. However, the vacuum formed between the laid out and fed over these sheets due to the relative movement of both sheets, relative to the pressure under the laid out sheet and resulting in a decrease in the rate of fall of the laid out sheet, is reduced only to a small extent. Due to the remaining differential pressure, the trailing edge is laid out on the sheet, which can be attracted to the sheet. that it is impossible to accurately form a slipway. In addition, air is sucked from the intake box n: air from inaccurately identifiable space, since air that is injected from free space at particularly threatened corners of the sheet, as a result, the efficiency of the device (tva) is limited. method and device for the accelerated casting of sheet materials, the description of the invention to the paradigm DD - PS 111870. The device consists of short-circuit blast pipes located above the slipway, the power of which is linear, mainly starting from the middle of the sheet, the sheet being laid out is pneumatically loaded. The disadvantage here is that the back areas of the sheet are loaded only insufficiently, since they overlap the subsequent sheet. The purpose of the invention is to create a blower device in sheet-fed devices, which can be manufactured and operated at low cost and which allows for the accurate formation of stocks too at high speeds and does not allow the rear to turn over the edge of the laid out sheet, as well as eliminates in the rear zone of the sheets the relative vacuum between the laid out sheet and the sheet fed through the receiving slipway and makes it possible to smooth the corners of the sheet of the rear edge. The goal is achieved by the fact that the blower nozzles are located above the receiving slipway and are directed Koso to the rear part of the lined sheet, the blowing nozzles being located in the plane of sheet feeding with the possibility of rotation around the center of rotation. Blower nozzles include an actuating system of levers and a screw transmission, driven by a hand lever. The use of compressed air eliminates the difficulties arising from the angles of the sheet when laying out the sheet. The device requires little air flow, and air regulation is forced, since the action of compressed air on the laid out sheet is interrupted by the sheet being fed after the passage of the place of action. Blower nozzles include an executive system of levers and a screw transmission, which is actuated by means of a handheld rye}. The use of compressed air eliminates the difficulties arising from the angles of the sheet when laying out the sheet. The device requires little air flow, and air regulation is enforced, since the action of compressed air on the laid out sheet is interrupted by the supplied sheet after the passage of the place of action. The device only acts on the laid out and / or filed sheet in such a way that, for example, there is no negative influence on previous ones that are already in phase; sheet formation due to air turbulence. The device is adjustable in format, character of the printed image and the material to be printed, and can also be manufactured and operated by simple means. Figure 1 shows the proposed device, side view; in Fig.2, the receiving slip, top view; in Fig. 3, a variant of the device, top view. On the front edge of the receiving building 1 of the sheet-feeding device of the sheet-processing machine (Fig. 1) pacno-t are the stops of the sheets 2. Above the receiving building 1 are located on the closed rotation of the chain 3 of the carriage with grips 4 (only one is shown), and on its back edge - suction roller 5. Above the sheet feeding route, inside i of the closed rotating circuit 3, two or several nozzles of the fan 6 are located at a small angle d to the sheet feeding path, across the entire width of the receiving pile 1. The blower nozzles 6 are predominantly located approximately in the middle of the non-receiving stocks 1 and are directed to the rear zones of the sheets, and according to FIG. 3 in the plane of the receiving stocks 1 from the inside to the outside they are arranged with increasing inclination to the sheet 14. The blown nozzles are also attached the hoses 7 through the throttle valve 8 to the unexposed air supply device and are attached with a holder (not shown) to the side walls 9 of the leaflet device. At the same time, the hand lever 10 placed in the side wall 9, the screw gear 11 and the actuating lever system 12 enable rotation of the nozzles of the blower 6 in the plane around the center of rotation 13; The device works as follows. With the help of the carriage with grippers 4, the sheets 14 are continuously transported through the receiving stocks 1, released, and laid out. At this, alignment takes place along the leading edge on the stops of the sheets 2. The laying of the sheets is supported by blowing from the nozzles of the inflator 6 at an angle ОО and directed to the sheet 14 by a stream of compressed air. In this case, the blower nozzles 6 are located in the plane of sheet feeding from the inside Outward with increasing inclination in order to smooth the corners of the sheet. The inclination of the blower nozzles is regulated by means of a hand lever Yu, a screw gear 11 and an executive lever systek 12. Compressed air is constantly blown onto the sheet so that it is possible to control the compressed air during operation. When controlling the compressed air according to the work cycle, the compressed air is turned on when the carriage with the grippers 4 with the fed sheet 14 has passed the suction roller 5, and is turned off after the carriage with the grippers 4 has passed the stream of compressed air. It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
权利要求:
Claims (3)
[1]
1. BLOWER DEVICE IN SHEETS AND SHEETS OF THE LEAF, PROCESSING MACHINES, in particular printing machines, in which the sheets are fed through the receiving stack and laid out with a carriage with grippers, consisting of the nozzles of the electric heater located across the entire width of the sheet above the receiving stack of the nozzle 6 are directed above the receiving stock 1 at an angle to the back of the lined sheet 14.
[2]
2. The device according to claim 1, wherein the nozzles of the blower 6 are located in the plane of sheet feeding with the possibility of rotation around the center of rotation 13.
[3]
3. The device pop 1, characterized in that the nozzles of the blower b include the Executive system of levers 12 and the screw gear 11, driven by a manual lever 10.
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同族专利:
公开号 | 公开日
DE3001395A1|1980-08-28|
GB2042479A|1980-09-24|
SE450569B|1987-07-06|
DD141150B1|1981-10-28|
DE3001395C2|1990-02-08|
GB2042479B|1983-02-09|
SE8001129L|1980-08-15|
CS228719B1|1984-05-14|
DD141150A1|1980-04-16|
US4317563A|1982-03-02|
引用文献:
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DE4433644B4|1994-09-21|2005-03-03|Heidelberger Druckmaschinen Ag|Method and device for guiding a sheet|
JP2005001838A|2003-06-12|2005-01-06|Toshiba Corp|Paper sheet take-out device and paper sheet take-out method|
US7726649B2|2005-06-07|2010-06-01|Xerox Corporation|Air drag cooler for sheet transport apparatus|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
DD21102179A|DD141150B1|1979-02-14|1979-02-14|BULBING DEVICE IN BENDERS OF ARC-MACHINING MACHINES|
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