公开(公告)号：WO1995006164A1

公开(公告)日：1995-03-02

申请号：PCT/US1994007712

申请日：1994-07-12

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  BUSKER, Leroy, H.

IPC: D21H23/36

CPC classification number: B05C3/18 ,  B05C11/04 ,  D21H23/38

Abstract: A short dwell coater apparatus (10) is disclosed for applying coating material to a web (W) supported by a backing member (12). The apparatus (10) includes a housing (14) which defines an application zone (16) having an upstream and a downstream end (18, 20). The application zone (16) extends in a cross-machine direction (CD) across the web (W) and is connected to a source of the coating material (22) such that the coating material is applied to the web (W) during movement of the web past the application zone (16). An elongate pipe (24) is disposed within the application zone (16) and extends in a cross-machine direction (CD) across the application zone (16). The pipe (24) defines at least one orifice (26) for the passage therethrough of the coating material. The pipe (24) is connected to the source of coating material (22) such that the coating material flows through the pipe (24) and through the orifice (26) for supplying coating material to the application zone (16). A vane (30) is rigidly secured to the pipe (24) and extends in a machine direction (MD) away from the pipe (24) towards the web (W) such that coating material supplied through the orifice (26) generates a hydrodynamic wedge (32) between the vane (30) and the web (W) for reducing entrained air vortices within the application zone (16). A metering blade (34) is disposed adjacent to the downstream end (20) of the application zone (16) for metering excess coating from the web (W).

Abstract translation: 公开了一种用于将涂料施加到由背衬构件（12）支撑的腹板（W）上的短停留涂布机（10）。 设备（10）包括限定具有上游和下游端（18,20）的施加区（16）的壳体（14）。 施加区域（16）跨过卷筒纸（W）跨机器方向（CD）延伸并且连接到涂料材料（22）的源，使得涂层材料在运动期间施加到卷材（W）上 通过应用区域（16）。 细长的管道（24）设置在施加区域（16）内，并跨越施加区域（16）沿横向（CD）延伸。 管（24）限定用于穿过涂层材料的至少一个孔口（26）。 管（24）连接到涂料源（22），使得涂层材料流过管（24）并通过用于向施涂区（16）供应涂料的孔（26）。 叶片（30）刚性地固定到管道（24）上并且沿机器方向（MD）远离管道（24）朝向幅材（W）延伸，使得通过孔口（26）供应的涂层材料产生流体动力学 在叶片（30）和腹板（W）之间的楔形件（32），用于减少施加区域（16）内的夹带空气涡流。 计量刀片（34）邻近施加区域（16）的下游端（20）设置，用于从腹板（W）计量多余的涂层。

公开(公告)号：WO1994026970A1

公开(公告)日：1994-11-24

申请号：PCT/US1994004581

申请日：1994-04-26

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  SKAUGEN, Borgeir ,  WEDEL, Gregory, L. ,  BROWN, Dale, A. ,  ARCHER, David, J.

IPC: D21F05/04

CPC classification number: D21F5/04 ,  D21F5/042 ,  D21G9/0063

Abstract: A single tier drying section (10) is disclosed for drying a web (12). The drying section includes a dryer (63) and a felt (72) guided about the dryer (63) such that the web (12) is disposed between the dryer (63) and the felt (72) for drying a first side (18) of the web (12). A further dryer (94) is disposed downstream relative to the dryer (63) and a further felt (110) is guided about the further dryer (94) such that the web (12) is disposed between the further dryer (94) and the further felt (110) for drying a second side (24) of the web (12). A dryer transfer mechanism (25) is used for transferring the web (12) from the dryer (63) to the further dryer (94).

Abstract translation: 公开了用于干燥纤维网（12）的单层干燥部分（10）。 干燥部分包括一个围绕干燥器（63）引导的烘干机（63）和一个毛毯（72），使得卷筒纸（12）设置在干燥器（63）和毛毯（72）之间，用于干燥第一面 ）的网（12）。 另外的干燥器（94）相对于干燥器（63）设置在下游，并且另外的毛毯（110）围绕另外的干燥器（94）被引导，使得纤维网（12）设置在进一步的干燥器（94）和 进一步感到（110）干燥纤维网（12）的第二侧面（24）。 干燥器转移机构（25）用于将幅材（12）从干燥器（63）转移到另一干燥器（94）。

公开(公告)号：WO1994012724A1

公开(公告)日：1994-06-09

申请号：PCT/US1993009974

申请日：1993-10-19

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  PULKOWSKI, Jeffrey, H.

IPC: D21F07/04

CPC classification number: D21F7/04

Abstract: A sheet break detector apparatus (10) is disclosed for detecting a sheet break in a dryer section (12) of a paper machine. The apparatus (10) includes a vacuum transducer (14) which is sensitive to the vacuum level within a vacuum roll (16) of a dryer section (12). The transducer (14) detects only a sudden change in vacuum level within the vacuum roll (16) resulting from a sheet break rather than a relatively gradual change in vacuum level resulting from an operator augmented vacuum level change. A guide device is connected to the transducer (14) and responsive to the transducer (14) for redirecting the sheet to a broke chute (22) upstream relative to the transducer (14) when the transducer (14) detects the sudden change in vacuum level. The arrangement is such that excessive wind-up of the broken sheet (W) around a dryer (24) of the dryer section (12) is inhibited.

Abstract translation: 公开了一种用于检测造纸机的干燥部（12）中的纸张断裂的片断检测装置（10）。 设备（10）包括对干燥器部分（12）的真空辊（16）内的真空度敏感的真空换能器（14）。 传感器（14）仅检测真空辊（16）内真空度的突然变化，这是由片断而不是由操作员增加的真空度变化导致的真空度的相对逐渐变化的。 当换能器（14）检测到真空的突然变化时，引导装置连接到换能器（14）并且响应于换能器（14）用于将片材相对于换能器（14）在上游重定向到破裂滑槽（22） 水平。 该布置使得干燥部（12）的干燥器（24）周围的断裂片（W）的过度卷绕被抑制。

公开(公告)号：WO1994009208A1

公开(公告)日：1994-04-28

申请号：PCT/US1993008537

申请日：1993-09-09

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  BONANDER, James ,  SLAGOWSKI, Eugene, L.

IPC: D21F03/08

CPC classification number: D21F3/08 ,  D21G1/02

Abstract: A method of manufacturing a cover for a press roll includes the steps of feeding epoxy matrix (10) into a container (12) and agitating the same. Filler material (16) is added to the matrix (10) while the matrix is being agitated. The matrix (10) and filler (16) are conveyed to an application zone (18). A roll (20) of reinforcing material (22) is unwound such that the unwound reinforcing material (22) extends past the application zone (18). The agitated matrix (10) and filler (16) is applied to the unwound material (22) during passage of the material past the application zone (18). The reinforcing material (22) with the matrix (10) and filler (16) applied thereto are then spirally wound around the press roll (28) such that the press roll (28) is covered with the reinforcing material (22) impregnated with the matrix (10) and filler (16). The arrangement is such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix (10).

Abstract translation: 制造压辊用盖的方法包括以下步骤：将环氧基质（10）进料到容器（12）中并搅拌。 当搅拌基质时，将填料（16）加入到基质（10）中。 基质（10）和填料（16）被输送到施加区（18）。 退绕的加强材料（22）的卷（20）被展开，使得展开的增强材料（22）延伸越过施加区（18）。 搅拌的基质（10）和填料（16）在物料通过施加区（18）的过程中被施加到解卷材料（22）上。 然后将施加有基质（10）和填料（16）的增强材料（22）螺旋缠绕在压辊（28）周围，使得压榨辊（28）被浸渍有浸渍的加强材料（22）覆盖 基质（10）和填料（16）。 这种布置使得所得到的盖的表面特性取决于添加到基质（10）中的填料的量和类型。

公开(公告)号：WO1993014325A1

公开(公告)日：1993-07-22

申请号：PCT/US1993000047

申请日：1993-01-04

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  OLSON, Keith, R. ,  MOSCHEL, Charles, C.

IPC: F16C13/00

CPC classification number: F16C13/026 ,  D21G1/022

Abstract: A piston apparatus for use in a controlled deflection roll includes a rectilinear-shaped piston (10a) having at least one side seal (22a, 22a') extending longitudinally in a slot (12a, 12a') in each sidewall and an end seal (21) in each end of the piston extending between the side seals. The end seals have at least one pair of intersecting surfaces (62, 64) at each end thereof which cooperate with a corresponding pair of surfaces of each side seal to move longitudinally relative to the piston and side seals to maintain a continuous seal peripherally about the piston. The continuous seal engages the sidewalls (26, 26') of a channel (30) within the support shaft (32) of the controlled deflection roll (34) and a non-movable seal surface (37) in each of two, opposed dams (36, 36a) at either end of the channel in the support shaft (32). The side and end seals (22a, 21) move with the piston (10a) relative to the support shaft (32) and seal surfaces on the end dams.

公开(公告)号：WO1993011298A1

公开(公告)日：1993-06-10

申请号：PCT/US1992010164

申请日：1992-11-25

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  EATON, Daniel, J. ,  KANITZ, Roger, A.

IPC: D21F09/00

CPC classification number: D21F1/028 ,  D21F1/02 ,  D21F9/003

Abstract: In a papermaking machine, a method and mechanism for delivering stock to a dewatering web including a pressure headbox (10, 33) with a narrowing slice opening (21, 37), a receiving throat either with a single traveling forming wire (31) or a pair of traveling forming wires (11, 12), bridging the space between the headbox opening (21, 37) and the wire so that the stock jet is contained without a free surface, and applying a trailing flexible element (26, 35) opposite the stock in a single wire machine or against one wire in a twin wire machine with the force and location of the trailing element controlled by a series of push rods (27, 36) arranged parallel in a cross-machine direction.

公开(公告)号：WO1993009286A1

公开(公告)日：1993-05-13

申请号：PCT/US1992008361

申请日：1992-09-30

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  HERGERT, Richard, E.

IPC: D21F01/06

CPC classification number: D21F1/022 ,  D21F1/02 ,  D21F1/024 ,  D21F1/026 ,  D21F1/028 ,  D21F1/06

Abstract: A headbox apparatus (10) is disclosed for ejecting stock (S) onto a forming wire (12) for forming a web (W). The apparatus (10) includes a housing (14) which is connected to a pressurized source (P) of the stock (S). The housing (14) defines a tapered inlet (16) for the flow therethrough of the stock (S). The tube bank (18) has an upstream and a downstream end (20, 22) with the upstream end (20) being connected to the tapered inlet (16) such that the stock (S) flows at a substantially constant flow rate through the inlet (16) and through the upstream end (20) of the tube bank (18) to the downstream end (22) of the tube bank (18). The tube bank (18) includes a plurality of tubes (24, 25, 26, 27) for the flow therethrough of the stock (S). A member (28) defines a slice chamber (30) which has an upstream and a downstream extremity (32, 34). The upstream extremity (32) is connected to the downstream end (22) of the tube bank (18), and the downstream extremity (34) is disposed adjacent to the forming wire (12). The arrangement is such that the stock (S) flows through the downstream end (22) of the tube bank (18) and through the upstream extremity (32) of the slice chamber (30) so that the stock (S) is ejected from the downstream extremity (34) of the slice chamber (30) onto the forming wire (12). A plurality of supply conduits (36, 37) are connected to the upstream end (20) of the tube bank (18) with each supply conduit (36, 37) being connected to a stock diluting source (38) for permitting dilution of the stock (S) flowing into the tube bank (18). A control device (40) cooperates with the supply conduits (36, 37) for controlling the dilution of the stock (S) flowing through at least some of the tubes of the tube bank (18) for controlling the cross-machine directional basis weight of the resultant web.

公开(公告)号：WO1993007336A1

公开(公告)日：1993-04-15

申请号：PCT/US1992007558

申请日：1992-09-09

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  PHILLIPS, Richard, W.

IPC: D21F01/48

CPC classification number: D21F1/48 ,  Y10S162/07

Abstract: A saveall apparatus (10A) is disclosed for collecting water (WA) ejected from stock (SA) through a forming wire (12A) of a papermaking machine. The apparatus (10A) includes a box (14A) which is disposed closely adjacent to the forming wire (12A). The box (14A) defines an enclosure (18A) which is connected to a source of partial vacuum (20A) so that water ejected from the stock is collected within the enclosure (18A). A throat wall (22A) is rigidly secured to the box (14A) and has an upstream and a downstream end (24A, 25A). The upstream end (24A) of the throat wall (22A) slidingly engages the forming wire (12A). A movable throat wall (26A) cooperates with the throat wall (22A) for defining therebetween a vacuum slot (16A) which is connected to the enclosure (18A) such that the water ejected from the stock is drawn by the partial vacuum (20A) through the vacuum slot (16A) into the enclosure (18A). The throat wall (22A) is disposed in a first plane (P1), and the movable throat wall (26A) is disposed in a second plane (P2) such that when the movable throat wall (26A) is moved relative to the throat wall (22A), an angle defined between the planes (P1, P2) remains constant.

公开(公告)号：WO1992022704A1

公开(公告)日：1992-12-23

申请号：PCT/US1992003084

申请日：1992-04-15

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  FIELD, Roderic ,  HARWOOD, John, W. ,  JACKSON, Peter

IPC: D21F09/00

CPC classification number: D21F9/003

Abstract: A forming apparatus (10) is disclosed for forming a web (W) from stock (S) having an ash content above 20 percent. The apparatus (10) includes a headbox (12) and a first and a second endless looped forming wire (16, 18) cooperating together to define therebetween a forming section (20) having an upstream and a downstream end (22, 24). A curved shoe (26) cooperates with the second wire (18), so that a first portion of water (28) is removed through the first wire (16). A dewatering device (30) is disposed between the shoe (26) and the downstream end (24) of the forming section (20) with the dewatering device (30) cooperating with the first wire (16). The arrangement is such that a second portion of water (32) is removed from the stock (S) through the second wire (18). A further dewatering shoe (34) is disposed between the dewatering device (30) and the downstream end (24) of the forming section (20). The further shoe (34) cooperates with the second wire (18) and is disposed on the same side of the wires (16, 18) as the shoe (26). The further shoe (34) is connected to a source of partial vaccum (36) such that a third portion of water (38) is removed from the stock (S) through the second wire (18). The arrangement is such that from the upstream to the downstream end (22, 24) of the forming section (20), water is progressively and evenly removed from the stock (S) through both wires (16, 18) so that two-sided ness of the resultant web is minimized while maintaining maximum retention of the ash within the web.

公开(公告)号：WO1999000548A1

公开(公告)日：1999-01-07

申请号：PCT/US1997017417

申请日：1997-09-26

Applicant: BELOIT TECHNOLOGIES, INC. ,  LAN, Xuekui ,  GEORGE, Brian, J.

Inventor： BELOIT TECHNOLOGIES, INC.

IPC: D21H23/32

CPC classification number: B05C11/025 ,  B05C3/18 ,  B05C9/04 ,  D21H23/32

Abstract: Apparatus (20, 20b) for coating a traveling paper web (w) includes a coater head (22, 22b) for applying a film of an aqueous slurry of coating material either directly to the paper web, which is supported on the surface of a rotating backing roll (14, 14b), or to the surface of a backing roll (14, 14c') which in turn applies the film to the paper web (w) which is nipped between two backing rolls. The coater head (22, 22b-d) includes an inlet (24, 24b) for receiving fresh coating material which is introduced into a mixing chamber (26, 26b). A looped flow path is established within the coater head which includes a feed channel (28, 28b) extending from the mixing chamber (26, 26b) and leading into a coating chamber (18, 18b) where one portion of the coating material proceeds in the direction of the rotating backing roll while another portion of the coating material exits the feed channel in the opposite direction over a baffle (30, 30b). The aqueous slurry of coating material near the downstream end of the coating chamber enters a recirculation channel from which it is directed through a plurality of flow metering orifices (58, 58b) back into the mixing chamber (26, 26b). This looped flow pattern operates to greatly reduce both the entrainment of air in the coating material in the application chamber and the quantity fresh coating material needed properly to coat the paper web, particularly at relatively high speeds desired. The application chamber can either include or not include a flexible blade (36, 36b). A rotating metering bar (40, 40b) is mounted on the coater head downstream of the coating chamber to meter the coating material applied to either the paper web or the backing roll.

Abstract translation: 用于涂布行进纸幅（w）的装置（20,20b）包括涂布机头（22,22a），用于将涂料的水性浆料的膜直接施加到纸幅上，所述纸幅被支撑在 旋转的背衬辊（14,14b）或背衬辊（14,14c'）的表面，该背衬辊（14,14c'）又将薄膜施加到被夹在两个支承辊之间的纸幅（w）上。 涂布机头（22，22b-d）包括用于接收被引入到混合室（26,26b）中的新鲜涂料的入口（24,24b）。 在涂布机头内部建立了循环流路，其包括从混合室（26,26b）延伸并进入涂覆室（18,18b）的进料通道（28,28b），其中涂料的一部分进行 旋转的背衬辊的方向，而涂层材料的另一部分在挡板（30,30b）上沿相反方向离开进料通道。 涂覆室下游端附近的涂料的含水浆料进入再循环通道，通过多个流量计量孔（58,58b）从其中引回到混合室（26,26b）中。 这种循环流动模式操作以大大减少涂布室中的涂料中的空气的夹带和适当地涂布纸幅所需的新鲜涂料量，特别是在所需的相对高的速度下。 施加室可以包括或不包括柔性叶片（36,36b）。 旋转的计量杆（40,40b）安装在涂覆室下游的涂布机头上，以测量施加到纸幅或背衬辊上的涂料。