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11. 发明专利

DE10259299A1 Papermaking drying plant has dryers for one or both sides of web and source of drying medium with nozzles which also blow away impurities and residues 未知
公开(公告)号：DE10259299A1
公开(公告)日：2004-07-01
申请号：DE10259299
申请日：2002-12-18
申请人： VOITH PAPER PATENT GMBH
发明人： BECKER INGO , MEIER KLAUS , WERNER BUTTSCHARDT , KAIPF HORST , UEBERSCHAER MANFRED
IPC分类号： D21F5/00 , D21F5/18 , F26B5/14 , F26B13/10 , F26B25/00 , F26B13/02
摘要： The drying plant (10) has drying units (12a, b, 14a, b) subjecting one or both sides to heat and/or drying medium from a source (28). The blowing nozzle arrangement (20, 23, 20, 21), also blows away any impurities and web residues. The nozzle array is connected to compressed air (28). Variants of the process based on the foregoing principles are described. A suction unit is included, removing any impurities and web residues. Its suction nozzles are arranged for co-operation with the blowing nozzles for this purpose. The plant is further detailed, including arrangements to vary nozzle gaps. The drying plant operates without contact, e.g. through infra-red drying, convection drying, hot-air drying, and/or levitation drying. Automatic equipment reacts to e.g. interruptions of normal machine operation, web separation, or a web tear. An Independent claim is included for the method of treating abnormal dryer conditions, especially causing production interruptions.

12. 发明专利

DE10238728A1 未知
公开(公告)号：DE10238728A1
公开(公告)日：2004-03-04
申请号：DE10238728
申请日：2002-08-23
申请人： VOITH PAPER PATENT GMBH
发明人： BECKER INGO , BUTTSCHARDT WERNER , KAIPF HORST , MEIER KLAUS , UEBERSCHAER MANFRED
IPC分类号： B05B15/02 , B05B15/555 , B05C5/02 , D21H23/32 , B05C9/00

13. 发明专利

AT259449T 未知
公开(公告)号：AT259449T
公开(公告)日：2004-02-15
申请号：AT01927724
申请日：2001-03-13
申请人： VOITH PAPER PATENT GMBH
发明人： BERNERT RICHARD , MENDEZ-GALLON BENJAMIN , UEBERSCHAER MANFRED
IPC分类号： B05C5/00 , B05C11/02 , D21H23/22 , D21H23/48
摘要： The air boundary layer reduction unit is a suction device (26) with resilient sections (28, 30, 32) sliding on the paper ground. Preferred features: The resilient section is a dragging scraper (28), preferably at the outlet side of the suction unit. It is plastic film, sheet metal or a composite. It is curved in the direction of running (L). A brush (30) is included at the inlet side. It has bristles of differing hardness, increasing in the running direction. Spacing between non-flexible sections and the ground, is about 10 mm. Spacing between the trailing edge of the suction unit and the point of incidence of coating medium is 1-100 mm, preferably 10-50 mm. A variant based on the foregoing principles employs an air blower in place of the suction device. In further implementations, a sealing roller is employed and/or a conditioner (a strip) removes the uppermost layers of the air boundary layer.

14. 发明专利

DE10231404A1 Papermaking machine has non-contact transverse guide with air cushion and airturn guides situated on one side of web only opposite a swivel-guide 未知
公开(公告)号：DE10231404A1
公开(公告)日：2004-01-22
申请号：DE10231404
申请日：2002-07-11
申请人： VOITH PAPER PATENT GMBH
发明人： UEBERSCHAER MANFRED
IPC分类号： B65H23/035 , B65H23/24 , B65H23/02
摘要： A papermaking machine has an assembly which adjusts the transverse position of a moving web (10). The assembly incorporates an adjustable (30) non-contact air cushion (42) web airturn guide (20, 22, 24). The lateral adjustment unit (30) is esp. located on one side of the web only, while the swivel web guide (22) is attached to a component group (52) on the other side of the web (10). The adjustment mechanism is located on one guide side of the web and operates through an angle of pref. +/- 5. The assembly regulates the transverse position of a 4 m wide web through a range of pref. 10 mm. The lateral position of the web is monitored by a pressure sensor linked via a regulator to the air cushion generator.

15. 发明专利

AT255189T 未知
公开(公告)号：AT255189T
公开(公告)日：2003-12-15
申请号：AT01119808
申请日：2001-08-16
申请人： VOITH PAPER PATENT GMBH
发明人： BERNERT RICHARD , UEBERSCHAER MANFRED
IPC分类号： B05C5/00 , D21H23/48
摘要： The applicator (10), to apply a liquid or paste coating (14) to the surface of a moving web (18), has a curtain applicator unit (12) where a curtain (16) of the coating falls by gravity on to the web. A limit (20) prevents surface coating over a defined width, and at least at one edge strip (18a) of the web, by deflecting the edge strip out of the web plane (E) at least at the applicator.

16. 发明专利

AT227378T 未知
公开(公告)号：AT227378T
公开(公告)日：2002-11-15
申请号：AT98114123
申请日：1998-07-29
申请人： VOITH PAPER PATENT GMBH
发明人： UEBERSCHAER MANFRED
IPC分类号： D21H25/08 , D21H25/12
摘要： The applicator system to spread a liquid to paste medium, on a moving web surface, has part of the compensation unit (21) in the force flow path between the doctor carrier (15) and the doctor components (7,9) to compensate for the distortion of the doctor carrier (15) in relation to the moving web (3), so that the doctor pressure is unaffected by the distortion. The compensation unit has a fluid and especially pneumatic action, with a force unit (37) and a surface (57) subjected to a pressure medium for transmission to the doctor components (7,9), independently of the distortion at the doctor carrier (15). The pressure medium supply (25) sets and maintains a constant pressure through the medium at the surface (57). The force is applied by a piston/cylinder unit (37) with a cylinder housing (39) and a piston assembly with at least one piston (45) moving in the hollow zone (41) of the housing (39). A pressure chamber (29) is linked to the pressure medium supply (25). A compensating membrane (53) is held at the cylinder housing (39) round its edge to separate the pressure chamber (29) in the hollow zone (41) in a pressure seal, to form the surface (57) under pressure on the side towards the pressure chamber, and in contact with at least one piston (45). The cylinder housing (39) is at the doctor carrier (15), and at least one piston (45) is coupled to the doctor components (7,9) for a common shifting movement. The piston (45) forms a dedicated component for one of the doctor components (7,9), with a release mechanical coupling, especially in pressure contact with the doctor components (7,9). The piston (45) is not guided, however is in a stabilized position and especially in a positive fit with the doctor components (7,9). The pressure chamber (29) extends coherently across the whole width of the web (3). The membrane (53) is a longitudinal strip membrane, to apply the pressure from the pressure chamber (29) together with a number of pistons (45) distributed across the web (3) width. Or a number of separate pressure chambers are across the web (3) width, each with a circular pressure transfer membrane. A given pressure is set at the pressure chamber(s), independently of each other. The doctor components (7,9) are a doctor bed (9) and a rotating doctor rod (7). The doctor carrier (15) has a longitudinal doctor beam (17) to support the doctor bed (9), especially with a leaf spring (11) assembly.

17. 发明专利

DE10157915A1 Monitor, to detect breaks in a moving paper/cardboard web, has a sensor at the measurement unit to register the actual web draw tension for comparison with a nominal value, to activate a back-off unit on a deviation 未知
公开(公告)号：DE10157915A1
公开(公告)日：2002-07-18
申请号：DE10157915
申请日：2001-11-26
申请人： VOITH PAPER PATENT GMBH
发明人： UEBERSCHAER MANFRED
IPC分类号： D21F7/04
摘要： To monitor a moving web (2) to detect a web break, at a papermaking or cardboard production machine and especially a coating applicator (1), the web passes around a measurement roller (3) of a measurement unit (4) with a draw tension (VZ). A sensor (5) monitors a web break, to activate a back-off unit (6) and especially a back-off blade (6.1). To monitor a moving web, for web breaks, the back-off unit is activated on a continuous small deviation of the actual web draw tension from a given process-related draw tension (VZS). The web break sensor (5) has at least one sensor unit (5.1) at the measurement unit, which is activated when the web movement achieves a given speed (VB). The sensor uses a full bridge strain gauge measurement principle. An Independent claim is included for a web break monitor assembly, with at least one sensor at the measurement unit to register the draw tension on the moving web, and activate a back-off unit through an electronic control (7) which works in real time, on detecting a break in the web.

18. 发明专利

DE10057733A1 Web curtain coating jet applicator has a valve in the jet chamber, as a spring leaf, which divides it into an ante-chamber and a main chamber to give a low coating medium volume for a coherent coating curtain 未知
公开(公告)号：DE10057733A1
公开(公告)日：2002-05-23
申请号：DE10057733
申请日：2000-11-22
申请人： VOITH PAPER PATENT GMBH
发明人： MENDEZ-GALLON BENJAMIN , UEBERSCHAER MANFRED
IPC分类号： B05C5/00 , D21H23/48 , B05C5/02
摘要： The web curtain coating system has a jet applicator (10) with a valve (20) in the jet chamber (16), which is opened against spring pressure. The jet chamber is divided into an ante-chamber (22) and a main chamber (24). The coating feed (18) opens into the ante-chamber, and the outflow opening (26) is at the end of the main chamber away from the valve. The web curtain coating applicator jet has an outlet opening formed by a valve, opened against spring pressure. The jet chamber valve body is formed by a spring leaf (28), preferably of stainless spring steel or a plastics with a reinforcement of glass or carbon fibers. The spring leaf has a thickness (d) of 0.2-30.0 mm and preferably 1.0 mm. The spring leaf projects over the edge (32) of the ante-chamber, with its free end (28b), by a length of 3-15 mm for the valve function. When the valve leaf is opened, it frees a gap (34) with a width (s) of 0.05-3.0 mm. An additional valve can be in the main chamber, to divide it into a pressure chamber and a dosing chamber. The pressure chamber is at the ante-chamber, while the outlet opening is at the end of the dosing chamber away from the valve. The dosing chamber has a flow length of 50-100 mm. The additional valve is a leaf spring, opened against the spring pressure, with the same dimensions and of the same materials as the main valve leaf spring. The additional valve can be a choke valve, with a profiled valve body as a rod with a rotary symmetrical axis or a profiled bar. The valve spring leaf extends as far as the outlet opening, so that the main or dosing chamber forms the curtain applicator only when the valve spring leaf is opened to lie against a wall of the applicator body. A setting unit acts on the valve spring leaf, on the side which is not in contact with the coating medium. The main or pressure chamber has an air bleed line (36). The outlet opening has a width of 0.2-4.0 mm.

19. 发明专利

DE10012344A1 Continuous liquid curtain coating, for paper or card operates under specified conditions of temperature, pressure and viscosity, leaving thin wet film on surface 未知
公开(公告)号：DE10012344A1
公开(公告)日：2001-09-20
申请号：DE10012344
申请日：2000-03-14
申请人： VOITH PAPER PATENT GMBH
发明人： MENDEZ-GALLON BENJAMIN , UEBERSCHAER MANFRED
IPC分类号： B05C5/00 , B05D1/30 , D21H23/48 , B05D1/28
摘要： Continuous liquid curtain coating, for paper or card operates under specified conditions of temperature, pressure and viscosity, leaving thin wet film on surface The ground (U) is paper or card in direct coating, or a transfer roller for indirect coating. The coating medium (18) contains suspended and/or dissolved solids at 20-60 deg C, having a viscosity of

20. 发明专利

DE10012257A1 Coating equipment for paper or card manufacture or finishing, includes air boundary layer reduction unit in form of suction device with sliding resilient sections 未知
公开(公告)号：DE10012257A1
公开(公告)日：2001-09-20
申请号：DE10012257
申请日：2000-03-14
申请人： VOITH PAPER PATENT GMBH
发明人： BERNERT RICHARD , MENDEZ-GALLON BENJAMIN , UEBERSCHAER MANFRED
IPC分类号： B05C5/00 , B05C11/02 , D21H23/22 , D21H23/48 , D21H23/56 , D21H23/38 , B05C1/08 , B05C11/04 , D21H23/34
摘要： The air boundary layer reduction unit is a suction device (26) with resilient sections (28, 30, 32) sliding on the paper ground. Preferred features: The resilient section is a dragging scraper (28), preferably at the outlet side of the suction unit. It is plastic film, sheet metal or a composite. It is curved in the direction of running (L). A brush (30) is included at the inlet side. It has bristles of differing hardness, increasing in the running direction. Spacing between non-flexible sections and the ground, is about 10 mm. Spacing between the trailing edge of the suction unit and the point of incidence of coating medium is 1-100 mm, preferably 10-50 mm. A variant based on the foregoing principles employs an air blower in place of the suction device. In further implementations, a sealing roller is employed and/or a conditioner (a strip) removes the uppermost layers of the air boundary layer.

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