Apparatus for applying coating to paper web including successive
doctoring steps
    11.
    发明授权
    Apparatus for applying coating to paper web including successive doctoring steps 失效
    用于将涂布施加到纸幅上的装置,包括连续的刮刀步骤

    公开(公告)号:US5647909A

    公开(公告)日:1997-07-15

    申请号:US475288

    申请日:1995-06-07

    Abstract: Apparatus for applying coating liquid to a web of paper traveling over a web supporting surface at speeds of 3,000 or more feet per minute to produce a coated web free of streaking and other imperfections includes the structural elements for distributing coating liquid onto the supported web through a limited application zone within a short dwell time of the liquid on the web, the web moving through the application zone at a speed that is sufficiently high to create turbulence in the coating liquid being applied to the web, doctoring the coating liquid on the web by biasing a primary doctor against the coated web at the rear edge of the application zone so as to form a layer of coating liquid on the web as the web leaves the application zone, the turbulence in the coating liquid causing machine direction streaks in the layer of the coating liquid as the web leaves the application zone; and, at a location downstream and isolated from the application zone, performing a successive doctoring of excess coating liquid on the supported web by biasing a final doctor blade against the coated web to remove excess coating from the web and to level and smooth the coating retained on the web to a final wet film thickness and smoothness.

    Abstract translation: 用于将涂布液施加到以每分钟3,000或更多英尺的速度在纸幅支撑表面上行进的纸幅的纸张以产生没有条纹和其他缺陷的涂布纸的装置包括用于通过纸张将涂布液体分布到所支撑的纸幅上的结构元件 在纸幅上的液体的短停留时间内的有限应用区域,纸幅以足够高的速度移动通过施加区域,以在施加到幅材上的涂布液体中产生湍流,通过 将主要刮刀偏置在涂布区域的后边缘处,以便当纸幅离开涂布区域时,在纸幅上形成涂层液层,涂布液体中的湍流引起机器方向条纹层 作为纸幅的涂布液离开涂布区域; 并且在下游并与施加区隔离的位置处,通过将最终的刮刀偏置在涂布的幅材上以使得从幅材上除去多余的涂层并使保留的涂层水平和平滑 在网上达到最终的湿膜厚度和平滑度。

    Adjustable blade coater
    12.
    发明授权
    Adjustable blade coater 失效
    可调式刮刀涂布机

    公开(公告)号:US5378503A

    公开(公告)日:1995-01-03

    申请号:US66523

    申请日:1993-05-24

    CPC classification number: B05C11/041

    Abstract: A web coater is provided with a doctor blade having an active edge or tip engaging the web at a predetermined position. The force applied by such active edge is adjusted by movement of jaws gripping the opposite edge of the blade. The jaws are moved along a curve empirically established to maintain the active edge of the blade in a predetermined fixed position during the adjustment. The angle of incidence of the active edge of the blade relative to the web is also maintained constant by pivoting a blade supporting frame about an axis coincident with the active edge. A controller is supplied with empirically established data developed by utilizing test blades to establish polynomial formulas having constants corresponding to each of the various blades intended to be used by the coater. The controller also automatically compensates for blade wear.

    Abstract translation: 纸幅涂布机设置有刮刀,刮刀具有在预定位置处与纸幅接合的主动边缘或尖端。 由这种有效边缘施加的力通过夹持叶片相对边缘的爪的运动来调节。 钳口沿着经验地建立的曲线移动,以在调节期间将刀片的主动边缘保持在预定的固定位置。 叶片相对于幅材的有效边缘的入射角也通过使叶片支撑框架围绕与活动边缘重合的轴线枢转而保持恒定。 向控制器提供通过利用测试刀片开发的经验确定的数据,以建立具有对应于打算由涂布机使用的各种刀片中的每一个的常数的多项式公式。 控制器还自动补偿刀片磨损。

    Doctoring installation and doctoring device
    15.
    发明授权
    Doctoring installation and doctoring device 失效
    医生安装和医疗器械

    公开(公告)号:US4920914A

    公开(公告)日:1990-05-01

    申请号:US255604

    申请日:1988-10-11

    Inventor: Johannes Zimmer

    Abstract: The doctor device has a profile member pivotally mounted to a retaining member that is carried on a mount. Vertical movement of the mount causes angular displacement of the profile member thereby changing the material application area disposed adjacent and upstream of the doctor. The doctor is either a doctor blade or roll doctor. In the case of a roll doctor, a receptacle is formed in the profile member and the roll doctor is magnetically retained within the receptacle. During application of a material to an application surface with the roll doctor, the roll doctor is magnetically attracted to the application surface by a second magnetic device located beneath the application surface or work surface.

    Abstract translation: 刮刀涂覆机构(1),用于通过利用磁力压在表面上的刮刀(5)在涂覆表面(6)上涂覆诸如不同粘度的涂抹材料,涂料,漆,粘合剂,糊状物等类似的铺展材料 力,轮廓元件(2)和与后者联接的轴承(4)。 为了防止倾斜和弯曲并且允许精确自动调节涂层表面(6)上的叶片压力,轴承(4)在轮廓元件(2)上被布置为旋转轴承(3),使得它 可以围绕垂直于其纵向轴线(20)的至少一个旋转轴线(45)从平行于涂层表面的位置自由地倾斜。

    Apparatus for coating paper webs
    16.
    发明授权
    Apparatus for coating paper webs 失效
    纸幅涂布设备

    公开(公告)号:US4375202A

    公开(公告)日:1983-03-01

    申请号:US260747

    申请日:1981-05-05

    CPC classification number: D21H25/10 B05C11/041 D21H5/0065 B05C9/04

    Abstract: Apparatus for coating paper webs having a doctor blade held in a clamping device which is mounted in a moveable holder. The clamping device is mounted to be pivotable about an axis parallel to the pivot axis of the holder and at a distance from the end of the doctor blade which is greater than the distance from the end of the clamping device.

    Abstract translation: 用于涂布纸幅的装置,其具有保持在夹持装置中的刮刀,该夹紧装置安装在可移动的保持器中。 夹紧装置被安装成能够围绕平行于保持器的枢转轴线的轴线在与刮刀的端部相距一定距离处枢转,该距离大于距离夹紧装置的端部的距离。

    Apparatus for the continuous and simultaneous application of coatings of
constant thickness to both sides of a web
    17.
    发明授权
    Apparatus for the continuous and simultaneous application of coatings of constant thickness to both sides of a web 失效
    用于连续和同时应用恒定厚度的涂层到纸幅两侧的装置

    公开(公告)号:US4233930A

    公开(公告)日:1980-11-18

    申请号:US2771

    申请日:1979-01-09

    Inventor: Gerhard Wohlfeil

    CPC classification number: B05C9/04 B05C11/041 B05C11/045

    Abstract: An apparatus for the continuous simultaneous application of coatings of constant thickness to two sides of a material web, having two adjustable two-edged spreader blades confronting one another at an angle, between which the material web passes for the proportioning of the coatings, a chuck for each blade, and means clamping each spreader blade along one edge in the chuck, the other edge of each blade parallel to the clamping line being free and engaging under bias and a corresponding biasing force the material web carried over the free edge of the other spreader blade at an acute angle to the direction of movement of the material web, and means applying a biasing force to each blade along a fulcrum line the improvement wherein one spreader blade is rigid and the other spreader blade is resilient, the chuck of the resilient spreader blade being pivotable about the engagement line between the resilient spreader blade and the rigid spreader blade and about a line outside of the clamping line for movement away from the rigid blade the clamping line of the resilient spreader blade being displaceable relative to the rigid spreader blade to adjust the biasing force while the engagement line and the fulcrum line of the resilient spreader blade are fixed relative to the rigid spreader blade during a continuous coating operation.

    Abstract translation: 一种用于连续同时施加具有恒定厚度的涂层到材料腹板的两侧的装置,其具有两个可调节的两边的扩展器叶片,该两个可调节的两边的扩展器叶片以一定角度彼此面对,材料纤维网通过其间用于涂覆的比例,卡盘 对于每个叶片,并且意味着沿着卡盘中的一个边缘夹紧每个撒布机叶片,每个叶片平行于夹紧线的另一边缘在偏置下是自由和接合的,并且相应的偏压力将材料卷筒带在另一个的自由边缘上 扩张器刀片与材料幅材的移动方向成锐角,并且意味着沿着支点线向每个刀片施加偏置力,其中一个扩展器刀片是刚性的并且另一个扩展器刀片是弹性的,弹性卡盘 扩展器刀片围绕弹性扩张器刀片和刚性扩展器刀片之间的接合线可绕枢轴转动,并且围绕夹紧 用于远离刚性刀片移动的线,弹性扩张器刀片的夹紧线相对于刚性扩张器刀片可移动,以调节偏置力,同时弹性扩张器刀片的接合线和支点线相对于刚性扩张刀片固定 在连续涂布操作期间。

    Device for applying a coating to a material web
    18.
    发明授权
    Device for applying a coating to a material web 失效
    用于将涂层施加到材料网的装置

    公开(公告)号:US4220113A

    公开(公告)日:1980-09-02

    申请号:US946132

    申请日:1978-09-27

    Inventor: Gerhard Wohlfeil

    CPC classification number: D21H25/10 B05C11/041 B05C11/045

    Abstract: A device for continuous application of coating of constant thickness to a web employing an elastic coating knife fixed in a clamping jaw and having a free edge parallel with a fixing line, the knife being prestressed against the web which is running over a roll, the knife center area being supported along a backup line, the clamping jaw being pivotable about the abutting line of the knife on the roll and about a line outside the fixing line in which the abutting and backup lines are fixed relative to the roll and the fixing line is continuously movable relative to the roll.

    Abstract translation: 一种用于使用固定在夹钳中的弹性涂层刀将具有恒定厚度的涂层连续施加到网的装置,并且具有与固定线平行的自由边缘,所述刀预先抵靠在辊上运行的腹板上,所述刀 中心区域沿着支撑线被支撑,所述夹爪可围绕所述刀的邻接线绕在所述辊上并且围绕所述固定线外侧的线枢转,其中所述抵接线和所述支撑线相对于所述辊固定,并且所述固定线是 可以相对于卷连续移动。

    Method and apparatus for coating a moving web
    19.
    发明授权
    Method and apparatus for coating a moving web 失效
    用于涂覆移动网的方法和装置

    公开(公告)号:US4133917A

    公开(公告)日:1979-01-09

    申请号:US717188

    申请日:1976-08-24

    Inventor: Hans I. Wallsten

    CPC classification number: B05C11/041 B05C11/045 B05C9/04 B05D1/42

    Abstract: A method and apparatus for coating at least one face of a moving web, such as a paper web, in which the web is fed longitudinally at a speed in excess of 400 meters per minute between a movable support and a blade forming, with the movable support, a nip. The blade has a bevel at the point of contact with the web, and an excess of coating material is applied at one side of the web in the nip, the coating material having a dryness content exceeding 60% and/or a viscosity exceeding 1500 cp. The angle of the blade is controlled so that it extends at most 20.degree. to the web and the bevel width, as measured in the direction of movement of the web, is at most 0.05 centimeters. Preferably, the blades are urged against the web with a force not exceeding 2 kgf per centimeter width of web.

    Abstract translation: 一种用于涂覆诸如纸幅的移​​动幅材的至少一个表面的方法和设备,其中幅材以可移动支撑件和形成刀片之间的每分钟超过400米的速度被纵向地供给, 支持,咬合。 刀片在与纸幅接触点处具有斜面,并且在辊隙中在幅材的一侧施加过量的涂层材料,涂层材料的干度含量超过60%和/或粘度超过1500cp 。 叶片的角度被控制成使得其相对于幅材延伸至多20度,并且在幅材的移动方向上测量的斜面宽度最大为0.05厘米。 优选地,叶片以不超过2kgf /厘米宽的幅材的力被推靠在幅材上。

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