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公开(公告)号:US4757584A
公开(公告)日:1988-07-19
申请号:US44334
申请日:1987-04-29
申请人: Josef Pav , Richard Rauf , Reinhard Wenzel
发明人: Josef Pav , Richard Rauf , Reinhard Wenzel
CPC分类号: F16C13/02 , D21G1/022 , F16C13/026 , F16C32/0666
摘要: A roll for use in a calender has a stationary carrier which is surrounded by a hollow cylindrical shell with the interposition of a hydraulically operated displacing unit which can flex selected portions of the shell when necessary so as to establish a preselected nip between the peripheral surface of the shell and the shell of an adjoining roll. The hydrostatic displacing unit is flanked by two antifriction bearings which operate between the carrier and the shell and are lubricated by a circuit which is independent of the circuit that supplies hydraulic fluid to the displacing unit. This renders it possible to use in the displacing unit a fluid whose temperature is much higher than the maximum permissible temperature of lubricant for the bearings. The bearings are sealed from the respective ends of the displacing unit by single seals or by multiple seals, and any leak fluid which penetrates beyond the neighboring seal is evacuated through one or more channels in the carrier and/or in the shell. Lubricant for the bearings may but need not be identical with hydraulic fluid which is supplied to the displacing unit.
摘要翻译: 用于砑光机的辊子具有固定的载体,该固定载体被中空的圆柱形壳体所包围,其中插入一个液压操作的移动单元,当需要时可以弯曲外壳的选定部分,以便在外壳表面之间建立预选的压区 相邻卷筒的外壳和外壳。 静液驱动单元的两侧是两个在载体和壳体之间运行的减摩轴承,并通过独立于将液压流体供应给移动单元的回路进行润滑。 这使得可以在位移单元中使用其温度远高于用于轴承的润滑剂的最大允许温度的流体。 轴承通过单个密封件或多个密封件从位移单元的相应端部密封,并且穿过相邻密封件的任何泄漏流体通过载体和/或壳体中的一个或多个通道被排出。 轴承的润滑剂可能不一定与提供给排量单元的液压油相同。
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公开(公告)号:US4685390A
公开(公告)日:1987-08-11
申请号:US726131
申请日:1985-04-23
申请人: Josef Pav , Reinhard Wenzel , Peter Svenka , Richard Rauf
发明人: Josef Pav , Reinhard Wenzel , Peter Svenka , Richard Rauf
CPC分类号: D21G1/0293
摘要: A calender wherein a permanently installed main roll cooperates with at least one exchangeable roll to provide a nip for the passage of a web of paper or the like. The end portions of the exchangeable roll are mounted in bearings which are insertable into and extractible from sockets provided in levers which are pivotably mounted in the frame of the calender. The calender has a transporting unit which is provided with grippers for the bearings and with motors which reciprocate the grippers to extract the bearings from their sockets after the levers are pivoted to positions in which the exchangeable roll is spaced apart from the main roll. The transporting unit thereupon transfers the exchangeable roll onto a mobile rack which can be transported to a station where the exchangeable roll is repaired. The same rack or a discrete second rack can deliver a refurbished exchangeable roll to the transporting unit for introduction of the bearings on the refurbished roll into the sockets on the levers in the frame of the calender before the levers are pivoted to move the refurbished roll into engagement with a running web or with the main roll. Locking devices are provided to releasably hold the bearings in their sockets, and additional locking devices are provided to releasably hold the bearings in sockets which are provided on the rack or racks. The transporting unit can constitute a robot whose grippers then constitute effectors and whose operation is automated to start a roll exchanging operation as soon as one or more sensors in the calender ascertain that the quality of the exchangeable roll is unsatisfactory for further treatment of running webs.
摘要翻译: 一种压光机,其中永久安装的主辊与至少一个可更换的辊协作以提供用于纸幅等的通过的辊隙。 可更换辊的端部安装在轴承中,该轴承可插入并且可从可旋转地安装在压延机的框架中的杠杆中提供的插座中提取。 压光机具有传送单元,该传送单元设置有用于轴承的夹持器以及马达,该马达在夹持器转动到可更换辊与主辊间隔开的位置之后使夹具往复运动以从其插座中提取轴承。 运输单元随后将可更换的辊转移到可移动的移动架上,该移动架可以被运送到可更换的辊被修理的工位。 相同的机架或离散的第二机架可以将翻新的可更换的辊子运送到运输单元,用于将翻新的辊筒上的轴承引入压延机的框架中的杆上的插座中,在杠杆枢转之前将翻新的辊子移动到 与运行的网络或主卷轴的接合。 提供锁定装置以可释放地将轴承保持在其插座中,并且提供附加的锁定装置以可释放地将轴承保持在设置在机架或机架上的插座中。 传送单元可以构成一个机器人,其夹具然后构成效应器,并且一旦压光机中的一个或多个传感器确定可交换辊的质量不能令人满意以进一步处理运行的卷筒纸,其操作自动地开始卷筒更换操作。
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公开(公告)号:US4520723A
公开(公告)日:1985-06-04
申请号:US565282
申请日:1983-12-27
申请人: Josef Pav , Reinhard Wenzel
发明人: Josef Pav , Reinhard Wenzel
IPC分类号: B21B13/14 , B21B27/03 , B21B29/00 , B29C43/46 , B30B3/04 , D06C15/02 , D06C15/08 , D21F1/00 , D21F3/08 , D21G1/00 , F16C13/00 , F16C13/02
CPC分类号: B21B27/055 , F16C13/02 , F16C13/028 , B29C43/46
摘要: A pressure roll for use in a calender has a beam whose end portions are mounted in a stationary frame and which is spacedly surrounded by a hollow cylindrical shell. Groups of hydrostatic supporting elements are installed in the space between the shell and the beam, and each such group has several supporting elements, as considered in the circumferential direction of the shell. Each supporting element has several hydraulic pressure transmitting cylinder and piston units which are adjacent to each other, as considered in the circumferential direction of the shell. The axis of the shell is held in a supporting plane which includes the axis of the pressure roll as well as the axis of an adjacent roll, and such retention of the axis of the shell in the supporting plane is effected exclusively by regulating the pressure of hydraulic fluid in selected pressure transmitting units. The end portions of the shell are movable radially of the respective portions of the beam.
摘要翻译: 用于砑光机的压力辊具有梁,其端部安装在固定框架中,并且被中空圆柱形壳体间隔开。 一组静水支撑元件安装在壳和梁之间的空间中,并且每个这样的组具有若干支撑元件,如在外壳的圆周方向所考虑的。 每个支撑元件具有若干液压传递圆筒和活塞单元,它们沿壳体的圆周方向相互相邻。 壳体的轴线保持在包括压力辊的轴线和相邻辊的轴线的支撑平面中,并且壳体的轴线在支撑平面中的保持仅通过调节 液压油在选定的压力传递单元中。 壳体的端部可在梁的相应部分径向移动。
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公开(公告)号:US4498383A
公开(公告)日:1985-02-12
申请号:US406494
申请日:1982-08-09
申请人: Josef Pav , Wimmar Schmitz , Reinhard Wenzel
发明人: Josef Pav , Wimmar Schmitz , Reinhard Wenzel
CPC分类号: F16C13/028 , B21B37/36 , D21G1/002 , D21G1/022 , D21G1/0286 , G05D23/1919
摘要: A system of rolls for use in a calender, printer or rolling mill has a pair of rolls at least one of which has a hollow cylindrical shell with an elastically deformable line. The shell surrounds a stationary carrier and confines a row of electromagnetic or hydraulic force applying devices which can be adjusted individually to thereby regulate the pressure between the two rolls and hence the temperature at the exterior of the liner. Such temperature is monitored by one or more sensors, and the signals from such sensors are processed by a computer which regulates an adjusting unit for the force applying devices so that the pattern of temperatures along the external surface of the liner matches an optimum pattern.
摘要翻译: 用于砑光机,打印机或轧机的轧辊系统具有一对轧辊,其中至少一个辊具有可弹性变形的线的中空圆柱形壳体。 壳体围绕固定的载体并且限制一排可以单独调节的电磁或液压施加装置,从而调节两个辊之间的压力,从而调节衬套外部的温度。 这种温度由一个或多个传感器监测,并且来自这些传感器的信号由计算机处理,该计算机调节用于施力装置的调节单元,使得沿着衬垫的外表面的温度图案与最佳图案匹配。
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公开(公告)号:US4376330A
公开(公告)日:1983-03-15
申请号:US191691
申请日:1980-09-29
申请人: Hans Weidinger , Werner Ehm , Josef Pav
发明人: Hans Weidinger , Werner Ehm , Josef Pav
CPC分类号: F16C32/044 , D21G1/0213 , F16C13/024 , Y10S100/917
摘要: A calender roll has a hollow cylinder which surrounds or is surrounded by a stationary support. That surface of the support which faces the cylinder has circumferential and axially parallel grooves for the coils of electromagnets which are energizable independently of each other or simultaneously and serve to prevent flexing and/or other deformation of the cylinder when the latter rotates and contacts a running web of paper, textile material or metallic or plastic foil. Those sections of the aforementioned surface of the stationary support which are surrounded by the coils constitute portions of circumferentially extending arcuate or annular pole faces and the polarity of each circumferentially extending pole face is constant. However, the polarities of neighboring pole faces the different, i.e., pole faces which constitute south and north poles alternate with each other, as considered in the axial direction of the calender roll. The cylinder can be subjected to controlled heating action by splitting the circumferentially extending pole faces, by connecting some or all of the coils to sources of a-c current, by varying the extent of excitation of the coils and/or by a combination of two or more of these methods.
摘要翻译: 压延辊具有围绕或被固定支撑件围绕的中空圆柱体。 支撑体面向气缸的表面具有周向和轴向平行的电磁铁线圈槽,它们彼此独立地或同时被激励,并且用于防止当气缸旋转时气缸的挠曲和/或其它变形, 纸幅,纺织材料或金属或塑料箔。 由线圈包围的固定支撑件的上述表面的那些部分构成周向延伸的弧形或环形极面的部分,并且每个周向延伸的极面的极性是恒定的。 然而,考虑到压延辊的轴向方向,相邻极的极性面对构成南极和北极的不同的即极面彼此交替。 通过将一些或全部线圈连接到交流电流源,通过改变线圈的激励程度和/或通过两个或多个组合的组合来使圆柱体受到受控的加热作用 的这些方法。
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公开(公告)号:US4290351A
公开(公告)日:1981-09-22
申请号:US083632
申请日:1979-10-11
申请人: Josef Pav , Franz Kayser , Axel Kemna
发明人: Josef Pav , Franz Kayser , Axel Kemna
IPC分类号: B29C43/00 , B29C33/00 , B29C43/24 , B29C43/46 , B29C43/58 , D06C15/02 , D21G1/00 , B30B3/04 , B30B15/16
CPC分类号: D21G1/002
摘要: The lowermost roll of a row of superimposed rolls in the stand of a calender is movable downwardly at a continuously increasing speed through a first distance which suffices to increase the width of clearances between neighboring rolls in the event of breakage of the running web so that the rolls cannot damage each other, and thereupon through a second distance which is at least 50 percent of the first distance. The lowermost roll is braked only during movement through the second distance so that the first distance can be covered, under the action of gravity alone or under the action of gravity plus the action of several double-acting hydraulic cylinders, within a fraction of the time which is required for adequate separation of rolls in a calendar wherein the lowermost roll must be braked during travel through the first distance. The speed of the lowermost roll during movement through the second distance is regulated by flow restrictors which are installed in conduits for evacuation of liquid from the lower chambers of the double-acting cylinders and which are adjustable by a control unit in accordance with a preselected pattern as a function of time and/or as a function of the extent of downward movement of the lowermost roll. The uppermost roll is hydraulically locked against any movement during downward movement of the lowermost roll.
摘要翻译: 砑光机支架中的一排重叠辊的最下卷可以以连续增加的速度向下移动第一距离,这足以在运行幅材断裂的情况下增加相邻辊之间间隙的宽度,使得 卷不能彼此损坏,并且通过第二距离至少为第一距离的50%。 最低的辊只在运动通过第二距离时制动,使得第一距离可以在重力作用下或在重力作用下加上几个双作用液压缸的作用被覆盖在一小部分时间内 这是在日历中适当分离辊所需要的,其中最下辊必须在行进通过第一距离期间被制动。 通过第二距离运动过程中最下辊的速度由流量限制器调节,流量限制器安装在用于从双作用气缸的下腔排出液体的导管中,并且可根据预选图案由控制单元调节 作为时间的函数和/或作为最下面的卷的向下运动的程度的函数。 在最下面的辊的向下运动期间,最上面的辊被液压锁定以防止任何运动。
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公开(公告)号:US4805279A
公开(公告)日:1989-02-21
申请号:US92298
申请日:1987-09-02
申请人: Josef Pav
发明人: Josef Pav
CPC分类号: F16C13/028 , D21G1/022
摘要: A pressure roll for use in calenders has a fixed carrier for a hollow cylindrical shell which is rotatable about and is movable radially of the carrier. The position of the shell relative to the carrier and the positions of longitudinal increments of the shell relative to each other are regulated by one or more supporting devices each of which has a row of neighboring hydrostatic bearing elements having convex surfaces with pockets adjacent the internal surface of the shell and being urged against the shell by discrete cylinder and piston units, one for each bearing element. Each bearing element has an elongated elliptical or rectangular outline and has a width in the circumferential direction of the shell which greatly exceeds its length in the axial direction of the shell. Each cylinder and piston unit has a piston whose cross-sectional outline equals or approximates that of the respective bearing element and which is only slightly smaller than the respective bearing element. The pistons are mounted on the carrier and extend into complementary cylinder chambers in the adjacent inner sides of the respective bearing elements. The cylinder and piston units can receive a heated hydraulic fluid at a controlled pressure. The relatively wide but short pistons ensure that the bearing elements can stand large deforming stresses.
摘要翻译: 用于压光机的压力辊具有用于中空圆柱形外壳的固定载体,该中空圆柱壳可绕载体径向旋转并可移动。 壳体相对于载体的位置和壳体相对于彼此的纵向增量的位置由一个或多个支撑装置调节,每个支撑装置具有一排相邻的静压轴承元件,其具有凸起表面,其具有邻近内表面的凹穴 并通过分立的气缸和活塞单元被推靠在壳体上,每个轴承元件一个。 每个轴承元件具有细长的椭圆形或矩形轮廓,并且在外壳的圆周方向上具有大大超过其在壳的轴向方向上的长度的宽度。 每个气缸和活塞单元都具有一个活塞,其活塞的横截面轮廓等于或相当于相应的轴承元件的横截面轮廓,并且仅略微小于相应的轴承元件。 活塞安装在载体上并延伸到相应轴承元件的相邻内侧中的互补气缸室中。 气缸和活塞单元可以在受控的压力下接收加热的液压流体。 相对宽而短的活塞确保轴承元件能承受较大的变形应力。
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公开(公告)号:US4757583A
公开(公告)日:1988-07-19
申请号:US927808
申请日:1986-11-06
申请人: Josef Pav , Reinhard Wenzel , Richard Rauf
发明人: Josef Pav , Reinhard Wenzel , Richard Rauf
CPC分类号: F16C13/026 , D21G1/022 , F16C13/028
摘要: A roll for use in a calender has a stationary carrier for a hollow cylindrical shell whose end portions are supported by combined radial and axial bearings surrounding annular bearing members which, in turn, surround the end portions of the carrier. The carrier defines with each bearing member a set of chambers which are sealed from the atmosphere and can receive pressurized hydraulic fluid to ensure that the end portions of the shell are biased toward a second roll with a requisite force as well that the end portions of the shell are stabilized against lateral and/or other stray movements. The fluid in the chambers ensures that the shell can be acted upon by large forces without unduly stressing the antifriction bearings. The bearing members flank a hydrostatic bearing unit which acts between the central portion of the shell and the carrier.
摘要翻译: 用于砑光机的辊子具有用于中空圆柱形壳体的固定载体,其端部由围绕环形轴承构件的组合的径向和轴向支承支撑,环形轴承构件又围绕载体的端部。 载体与每个轴承构件一起限定一组室,其与大气密封并且可以接收加压的液压流体,以确保壳体的端部以所需的力被朝向第二辊偏压,并且使得端部 外壳稳定抵抗横向和/或其他杂散运动。 腔室中的流体确保了壳体可以通过大的力而作用,而不会过度压力减摩轴承。 轴承构件位于壳体的中心部分和载体之间的静压轴承单元的侧面。
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公开(公告)号:US4729153A
公开(公告)日:1988-03-08
申请号:US860664
申请日:1986-05-07
申请人: Josef Pav , Richard Rauf , Hans-Dieter Patermann
发明人: Josef Pav , Richard Rauf , Hans-Dieter Patermann
IPC分类号: F26B13/18 , B21B27/05 , B21B29/00 , B29C43/46 , D06B23/02 , D21F3/08 , D21F7/06 , D21G1/00 , D21G1/02 , F16C13/00 , F26B13/04 , B21B13/00
CPC分类号: F16C13/028 , D21F7/06 , D21G1/022
摘要: A calender roll wherein the flexible shell is supported by a row of primary hydrostatic bearing elements serving to transmit first forces toward the nip of such roll with a second roll and wherein the shell is further acted upon by a row of secondary hydrostatic bearing elements which generate second forces opposing the first forces. The rate of fluid flow through the secondary bearing elements is regulated with a view to conform the temperature of the shell along the nip of the two rolls to a preselected pattern. To this end, the compensator of a computer in the fluid pressure regulating unit insures that pressure changes are distributed among the primary and secondary bearing elements with a view to match each change of the first forces by an equal change of the second forces. The temperature of the fluid is regulated only ahead of the regulating unit. The compensator cooperates with the secondary bearing elements to ensure that the temperature of the shell can be changed along the nip without altering the temperature of the fluid.
摘要翻译: 砑光辊,其中柔性壳由一排初级静压轴承元件支撑,用于通过第二辊将第一力朝向该辊的辊隙传递,并且其中壳体进一步被一排次级静压轴承元件作用,所述第二静压轴承元件产生 反对第一力量的第二力量。 调节通过次级轴承元件的流体流速,以使外壳沿着两个辊的辊隙的温度符合预选图案。 为此,流体压力调节单元中的计算机的补偿器确保压力变化分布在主要和次要轴承元件之间,以便使第一力的每个变化与第二力的相等变化相匹配。 流体的温度仅在调节单元的前面调节。 补偿器与辅助轴承元件协作,以确保壳体的温度可以沿辊隙改变而不改变流体的温度。
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公开(公告)号:US4457057A
公开(公告)日:1984-07-03
申请号:US318062
申请日:1981-11-04
申请人: Josef Pav
发明人: Josef Pav
CPC分类号: F16C13/028
摘要: A roll for use in calenders or like machines has a hollow cylindrical shell which spacedly surrounds a carrier and whose internal surface engages the external surfaces of several bearing elements each of which is biased against the shell by at least one hydraulic pressure generating device having a cylinder on the carrier or on the bearing element, a piston on the bearing element or on the carrier, and an annular seal recessed into the cylinder and engaging the periphery of the piston. The bearing elements can reciprocate in the radial direction of the shell as well as pivot about axes which are parallel with or normal to the axis of the shell due to the provision of swivelling joints having sockets machined into the bottom faces of cylinders in the respective cylinder chambers and spherical heads extending into the associated sockets and having shanks secured to the end faces of the respective pistons, or vice versa. Such mounting reduces or eliminates stresses upon the seals of the pressure generating devices including stresses which are generated by transverse forces tending to tilt the bearing elements in the shell. Such forces are transmitted by the bearing elements to the carrier by way of the corresponding joints.
摘要翻译: 用于压光机或类似机器的卷筒具有间隔围绕载体的中空圆柱形外壳,其内表面接合多个轴承元件的外表面,每个轴承元件通过至少一个液压产生装置偏压抵靠外壳,该液压产生装置具有圆筒 在载体上或轴承元件上,在轴承元件上或载体上的活塞,以及凹入到气缸中并与活塞的周边接合的环形密封件。 轴承元件可以在外壳的径向方向上往复运动,并且围绕与壳体的轴线平行或垂直于轴线的轴线枢转,因为提供了旋转接头,其具有被加工到相应气缸中的气缸的底面中的插座 腔室和球形头部延伸到相关联的插座中并且具有固定到相应活塞的端面的柄,反之亦然。 这种安装减少或消除了压力产生装置的密封件上的应力,包括由趋向于使壳体中的轴承元件倾斜的横向力产生的应力。 这些力通过相应的接头由轴承元件传递到载体。
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