EP2294261A1 - Leistenanordnung für eine maschine zur herstellung einer faserstoffbahn - Google Patents
Leistenanordnung für eine maschine zur herstellung einer faserstoffbahnInfo
- Publication number
- EP2294261A1 EP2294261A1 EP09772383A EP09772383A EP2294261A1 EP 2294261 A1 EP2294261 A1 EP 2294261A1 EP 09772383 A EP09772383 A EP 09772383A EP 09772383 A EP09772383 A EP 09772383A EP 2294261 A1 EP2294261 A1 EP 2294261A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- movable
- bar
- machine
- movable bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/48—Suction apparatus
- D21F1/483—Drainage foils and bars
- D21F1/486—Drainage foils and bars adjustable
Definitions
- the invention relates to a strip assembly for a machine for producing a fibrous web, in particular a paper, board or tissue web, which extends transversely to the machine direction and the at least one fixed structure which is directly or indirectly attached to a frame of the machine, at least a movable strip, which is preferably indirectly connected to the fixed structure and in relation thereto by a preferably controllable / actuating means at least between a rest position and an operating position in which the movable bar is pressed with a selectable contact force to a member movable and at least one fixed guide means rigidly attached to the fixed structure or directly or indirectly attached to the frame of the machine which exerts a guiding action on the movable strip and which is a plurality of spaced and fixed C-shaped guides units, which at least partially surround the movable strip in its lower region by at least one fixed guide arm.
- the invention relates to a wire section for a machine for producing a fibrous web and a machine for producing a fibrous web.
- the fibrous web may in particular be a paper, board or tissue web.
- the movable strip is a formation strip and the element is in the area of a Twin-wire zone of a twin-wire section arranged Formiersieb.
- This strip assembly has a fixed guide means which exerts a guiding effect on the movable strip, in particular formation strip and the plurality of spaced and fixed C-shaped guide units, which at least partially the movable strip, in particular formation strip in its lower region by at least one fixed guide arm encloses.
- the movable strip, in particular formation strip, disclosed in the cited document is used, inter alia, to scrape off and conduct away water from an element, in particular a forming screen, shortly after the start of the sheet forming process in a machine for producing a fibrous web, in particular a paper, board or tissue web , In addition, it serves to exert an impulse on the fiber / water suspension in order to be able to influence the sheet properties in a targeted manner.
- the movable strip, in particular formation strip is applied in its operating position to the element, in particular forming fabric, with a selectable setting force and ultimately also preferably pressed or regulated in a controlled manner.
- the application and the final pressing of the movable strip, in particular Formations- bar, preferably the lifting movement of the movable bar, in particular formation bar is usually carried out by an actuating means, in particular by one or two hoses, which are filled with a gaseous or liquid medium and the Move movable bar, in particular formation bar, so bring forward to the operating position.
- the movable strip, in particular formation strip For maintenance purposes, such as for a change of the element, in particular screen replacement or their replacement, however, the movable strip, in particular formation strip must be withdrawn from the element, in particular Formiersieb and placed in a rest or maintenance position. This is usually done by deactivating the actuating means and the action of gravity on the movable bar, in particular forma- tion strip.
- the movable strip, in particular formation strip is also process-reliable and reproducible by the element, in particular the forming fabric into the Rest or maintenance position is withdrawn.
- At least one return mechanism for bringing the movable strip from the operating position is provided in the rest position, wherein the at least one return mechanism at least one guided and arranged on the movable bar outside and on the long side Part having an oblique ramp surface, the slope of which is oriented at an angle in the range of 5 to 60 °, preferably 20 to 45 °, in particular 25 to 35 °, to the longitudinal direction of the movable strip, at least one leading and at the C shaped guide unit on the inside arranged part with a preferably oblique guide surface, with the oblique ramp surface - A -
- the strip assembly according to the invention with the disclosed return mechanism completely eliminates the disadvantages of the prior art known to the person skilled in the art. Also, the conditions for a process-reliable, reproducible and cost-effective retraction of the movable strip, in particular during operation of the machine for producing a fibrous web are given.
- the recited mechanism with the two cooperating parts and the movement means causes during its use a forced return of the movable bar from its operating position to its rest position.
- the slope of the inclined ramp surface of the part should be made as flat as possible in order to keep the required retraction forces low. However, this requires a long lateral displacement of the movable bar. These requirements are best met by means of the specified angular ranges for the slope.
- the guided and arranged on the movable bar outside and longitudinally part with the inclined ramp surface is an at least one-piece plate, which is connected to the movable bar releasably, in particular screwed or unsolvable, in particular adhesively bonded. Due to the possible solubility of the at least one-piece plate easy replacement of the same, for example as a result of wear or the like, easily, quickly and inexpensively possible.
- the plate can of course also be made in several parts.
- the plate may comprise a plate body and a casserole body, which may be made of a particularly slippery material.
- the two bodies may be connected to each other, for example by means of at least one screw, a bond or the like.
- the guided and arranged on the movable bar outside and on the long side part with the oblique ramp surface in the movable bar cutting, preferably milled, or non-cutting, preferably forming introduced. So the slope can be milled into the movable bar. This requires a firm connection with the movable bar, but has the disadvantage that the slope can change only conditionally in hindsight. Since the movable bar, in particular its support bar is made in most cases of glass fiber reinforced plastic (Pultrusionsprofil), the mostly longitudinally oriented glass fibers are cut by milling. These cut surfaces must then be sealed against possible ingress of water. The sliding contact between bevel and guide arm thus takes place via the sensitive seal.
- Pultrusionsprofil glass fiber reinforced plastic
- the guided and arranged on the movable bar outside and on the long side part with the inclined ramp surface in a extending in the longitudinal direction of the movable bar groove may be arranged.
- the groove has a groove depth, which is preferably equal to or approximately equal, in particular slightly smaller, than the part height.
- the groove may extend the full length of the movable bar.
- the oblique ramp surface of the movable bar on the outside and longitudinally arranged part preferably made of a material with good sliding properties.
- this material may have a coefficient of friction ⁇ ⁇ 0.3, preferably ⁇ 0.2, in particular ⁇ 0.15.
- the externally and longitudinally arranged part with the inclined ramp surface can be a separate component mounted on the movable strip or an integral part of the movable strip.
- the leading and on the C-shaped guide unit inside arranged part with the preferably oblique guide surface is preferably arranged on a fixed guide arm.
- the preferred slope of the guide surface on the fixed guide arm at an angle in the range of 5 to 60 °, preferably from 20 to 45 °, in particular from 25 to 35 °, be aligned to the longitudinal direction of the movable bar.
- the angle on the slope of the guide surface assumes a smaller value than the angle on the ramp surface of the part.
- the guide arm of the C-shaped guide unit which has a preferably oblique guide surface and is stationary is designed to be shorter than the at least one other guide arm of the C-shaped guide unit arranged mutually of the movable bar.
- the shortness may assume a value in the range of 5 to 50 mm, preferably 10 to 40 mm, in particular 20 to 30 mm.
- the strip assembly has a casserole side, on which the element runs on the movable bar, and a drain side, on which the element of the movable bar expires on.
- the at least one return mechanism for bringing the movable strip from the operating position into the rest position is hereby preferably arranged on the run-up side of the movable strip.
- the arranged on the discharge side of the movable bar and fixed guide arm can thus be made longer, whereby an improved guidance of the movable bar is achieved, in particular with regard to the tipping stability.
- a plurality of return mechanisms for bringing the movable strip from the operating position into the rest position are preferably provided, wherein they are arranged regularly, preferably on every n-th C-shaped guide unit, or irregularly. They can thus be arranged, for example, on each, on every second, every third or even every fourth C-shaped guide unit. Of course, however, they can also, as already mentioned, be arranged irregularly and possibly also in a pattern.
- the movable bar which comprises a top side and the element leading head strip and a support bar arranged on the underside, provided in the region of its support bar on the underside with a plurality of slots and preferably arranged at equal intervals.
- the individual movement device ideally comprises at least one drive unit having a preferably linear movement direction, such as a pneumatic or hydraulic cylinder, a linear motor, a crank mechanism or the like.
- a drive unit has already proven itself in similar cases many times and moreover satisfies the demands placed on them sufficiently.
- the moving device acting on the movable bar preferably acts on the front side of the movable bar; Of course, it could also be arranged along the movable strip and act on it directly or indirectly.
- the actuating means comprises in a preferred embodiment at least one filled with a liquid or gaseous medium hose, a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or other similar lifting element.
- a liquid or gaseous medium hose a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or other similar lifting element.
- a gaseous medium hose a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or other similar lifting element.
- the strip arrangement according to the invention can also be part of a wire section for a machine for producing a fibrous web, in particular a paper, board or tissue web.
- a plurality of strip arrangements extending transversely to the machine direction and arranged parallel to one another are preferably provided, that is to say of identical design.
- each movable bar which comprises a top side and the element leading head strip and a support bar arranged on the underside, provided in the region of its support bar at the bottom with a plurality of equally spaced slots.
- two immediately adjacent and movable strips are arranged parallel to one another in such a way that their respective slots are offset in the operating position of the movable strips, preferably centered, arranged relative to one another, so that markings in the fibrous web to be produced can be largely effectively avoided. If they were not arranged offset to one another, equal stiffness regions of the strips in the machine direction would be arranged in alignment with one another. This could result in marks in the fibrous web to be produced.
- the filler is - viewed in the machine direction - arranged on a movable bar on the left and on the next movable bar on the right, so that - seen from the middle of the wire section - always the same width X is applied to the movable strips.
- the lateral projection of the movable strips to one side does not interfere, as it is outside the element.
- the same base strip in the same, that is identical design can be used for all movable strips of a wire section.
- the strip arrangement according to the invention is also outstandingly suitable for use in a machine for producing a fibrous web, in particular a paper, board or tissue web.
- a wire section which makes use of the strip assembly according to the invention, in an excellent manner for use in a machine for producing a fibrous web, in particular a paper, board or tissue web.
- the movable strip may be a formation or dewatering strip consisting of at least one header contacting the element and a support strip rigidly connected to the header, and the element may be a forming wire of a wire section for a machine for making a fibrous web ,
- the movable strip may be an oil scraper and the element may be a press roll of a press section for a machine for making a fibrous web.
- the movable bar may be a scraper and the element may be a roller or cylinder of a wire, press or dryer section for a machine for making a fibrous web.
- FIG. 1 shows a schematic cross-sectional view of a strip arrangement for a machine for producing a fibrous web according to the prior art
- Figure 2A is a schematic longitudinal sectional view of an embodiment of a strip assembly according to the invention for a machine for producing a fibrous web in an operating position;
- FIG. 2B shows the strip arrangement according to the invention shown in FIG. 2A for a machine for producing a fibrous web in a rest position;
- Figure 3 is a schematic perspective view of the movable strip shown in Figures 2A and 2B of the strip assembly according to the invention for a machine for producing a fibrous web;
- FIG. 4 shows a schematic cross-sectional view of the C-shaped guide unit of the invention shown in FIGS. 2A and 2B. proper strip arrangement for a machine for producing a fibrous web;
- Figure 5 is a schematic perspective view of the C-shaped guide unit shown in Figure 4 of the strip assembly according to the invention for a machine for producing a fibrous web;
- FIG. 6 shows two adjacent strip arrangements of a wire section for a machine for producing a fibrous web.
- the fibrous web may in particular be a paper, board or tissue web.
- the strip assembly 1 extends transversely to the machine direction M (arrow) and comprises a fixed structure 2, which is attached directly or indirectly to a merely indicated frame 3 of the machine. Furthermore, it comprises a movable strip 4, which is indirectly connected to the fixed structure 2 and in relation thereto by a preferably controllable actuating means 5 at least between an illustrated operating position Y, in which the movable strip 4 has a selectable setting force F (Arrow) can be pressed against an element 6, and a rest position Z, not shown, but known in the art is movable. The rest position Z can thereby the maintenance position in which the bar assembly 1 maintenance and replacement work of any kind can be made correspond.
- the strip assembly 1 comprises a fixed guide means 7, which in the illustrated embodiment is rigidly attached to the fixed structure 2 or, in a non-illustrated embodiment, directly or indirectly to the frame 3 of the machine and which exerts on the movable bar 4 a guiding effect.
- the illustrated strip assembly 1 comprises purely by way of example as a movable strip 4 a formation or drainage strip 8, which consists of at least one of the element 6 contacting head strip 9 and a rigidly connected to the head strip 9 support bar 10, and the element 6 is a forming fabric 6.1 a wire section for a machine for producing a fibrous web. On formed as a forming screen 6.1 element 6 is usually at least one fibrous suspension, not shown.
- the movable bar 4 may also be a ⁇ labstreifance and the element may be a press roll of a press section for a machine for producing a fibrous web.
- the movable strip 4 may also be a scraper and the element may be a roller or a cylinder of a wire, press or dryer section for a machine for producing a fibrous web.
- the actuating means 5 is in the illustrated embodiment, a filled with a liquid or gaseous medium 11 tube 5.1, which is guided laterally and at least partially laterally in a shell 12.
- a liquid or gaseous medium 11 tube 5.1 which is guided laterally and at least partially laterally in a shell 12.
- it may also be a pneumatic or hydraulic cylinder, a KeN gear, an eccentric or another similar lifting element.
- the fixed guide device 7 comprises a plurality of spaced and fixed C-shaped guide units 13, which surround the movable strip 4 in its lower region on one side by a respective fixed guide arm 14.1, 14.2 at least partially and on guiding surfaces 14.11, 14.12, 14.21 and 14.22 the leading effect exercise the movable bar 4.
- the illustrated four guide surfaces 14.11, 14.12, 14.21 and 14.22 are highlighted in the drawing.
- the strip assembly 1 with the movable bar 4 has a casserole side S.1, at which the element 6 runs onto the movable bar 4, and a discharge side S.2, at which the element 6 runs from the movable bar 4, on.
- FIG. 2A now shows a schematic partial longitudinal view of an embodiment of a strip arrangement 1 according to the invention for a machine for producing a fibrous web in an operating position Y.
- the running side S.1 of the strip arrangement 1 is visible.
- This strip assembly 1 extends transversely to the machine direction M (arrow) and comprises a fixed structure 2, which is attached directly or indirectly to a merely indicated frame 3 of the machine. Furthermore, it comprises a movable strip 4, which is indirectly connected to the fixed structure 2 and in relation thereto by a preferably controllable actuating means 5 at least between an illustrated operating position Y, in which the movable strip 4 has a selectable setting force F (Arrow) can be pressed against a dashed line shown element 6, and a non-illustrated, the skilled person, however, known rest position Z (see Figure 2B) is movable.
- the rest position Z can correspond to the maintenance position in which maintenance and replacement work of any kind can be carried out on the strip arrangement 1.
- the strip assembly 1 comprises a fixed guide means 7, which is rigidly fixed in the illustrated embodiment to the fixed structure 2 or, in a non-illustrated embodiment, directly or indirectly to the frame 3 of the machine and which exerts on the movable bar 4 a guiding effect.
- the illustrated strip assembly 1 comprises purely by way of example as a movable strip 4 a formation or drainage strip 8, the at least one of the element 6 contacting head strip 9 and a rigid with the head strip. 9 connected support bar 10, and the element 6 is a forming fabric 6.1 a wire section for a machine for producing a fibrous web. On formed as a forming screen 6.1 element 6 is usually at least one fibrous suspension, not shown.
- the movable bar 4 may also be a ⁇ labstreifance and the element may be a press roll of a press section for a machine for producing a fibrous web.
- the movable strip 4 may also be a scraper and the element may be a roller or a cylinder of a wire, press or dryer section for a machine for producing a fibrous web.
- the actuating means 5 is in a known manner a filled with a liquid or gaseous medium 11 tube 5.1, which is guided laterally and at least partially laterally in a shell 12 (see Figure 1). However, it may also be in a known manner, a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or other similar lifting element.
- the fixed guide device 7 comprises a plurality of spaced and fixed C-shaped guide units 13, which surround the movable strip 4 in its lower region on one side by a respective fixed guide arm 14.1, 14.2 at least partially and on guide surfaces
- At least one return mechanism 15 is provided for bringing the movable strip 4 out of the operating position Y into the rest position Z (see FIG.
- the return mechanism 15 comprises a plurality of spaced, guided and on the movable bar 4 outside and longitudinally arranged parts 16 (see also Figure 4) with a respective inclined ramp surface 17, the slope 18 at an angle ⁇ in the range of 5 to 60 °, preferably from 20 to 45 °, in particular from 25 to 35 °, to the longitudinal direction L (arrow) of the movable strip 4 is aligned.
- the return mechanism 15 comprises a plurality of spaced, leading and arranged on the individual and immediately adjacent C-shaped guide unit 13 inside parts 19 (see Figures 4 and 5) with a preferably oblique guide surface 20, with the oblique ramp surface 17 of each guided and can be brought into contact with the movable strip 4 on the outside and on the longitudinal side during the transport of the movable strip 4 from the operating position Y into the rest position Z (see FIG.
- the return mechanism 15 comprises at least one on the movable bar 4 frontally acting and preferably controllable / controllable movement means 21 for moving the movable bar 4 in its longitudinal direction L (arrow).
- the movement device 21 is only schematically indicated, inter alia, by means of an arrow. It comprises, in a known manner, at least one drive unit having a preferably linear direction of movement, such as, for example, a pneumatic or hydraulic cylinder, a linear motor, a crank mechanism or the like.
- the respective guided and arranged on the movable bar 4 outside and longitudinal side part 16 with the inclined ramp surface 17 is in a longitudinal direction L (arrow) of the movable bar 4 extending groove 22 (see also Figure 4).
- the groove 22 extends in the illustrated embodiment over the entire length of the movable strip 4 and it has a groove depth 22.T, which is preferably equal to or approximately equal, in particular slightly smaller, than the part height 16.T (see FIG. ,
- FIG. 2B now shows the strip arrangement 1 according to the invention shown in FIG. 2A for a machine for producing a fibrous web in one Rest position Z.
- the element 6, in particular the forming fabric 6.1 is in turn indicated only by a dash-and-dot line. It is the casserole side S.1 of the strip assembly 1 visible.
- the movable strip 4 was brought into the rest position Z by means of the front-acting and preferably controllable movement device 21 for moving the movable strip 4 in its longitudinal direction L (arrow) from the operating position Y (see FIG.
- the several spaced, guided and on the movable bar 4 outside and longitudinally arranged parts 16 with a respective oblique ramp surface 17 with the plurality of spaced, leading and on the individual and immediately adjacent C-shaped guide unit thirteenth on the inside arranged parts 19 (see Figures 4 and 5) brought into contact. Due to the contacting of the two parts 16, 19 and the inclined surfaces 17, optionally in conjunction with the inclined surface 20 (see Figures 4 and 5), the movable bar 4 has been moved between the two positions Y, Z and thus of the element lifted.
- the parts 16, 19 are preferably arranged in a regular distribution on the movable bar 4.
- the regular distribution may for example provide a respective distance A in the range of 150 to 1,000 mm, preferably 200 to 750 mm, in particular 250 to 500 mm.
- they can also only on every n-th C-shaped guide unit 13 or even irregular be arranged lar.
- the division of the C-shaped guide units may be regular or irregular. It depends among other things on the forces that occur, inter alia, by the deflection of the scraped off by the element of water jet.
- the movable bar 4 which comprises a top side and the element 6 leading head strip 9 and a support bar 10 arranged on the underside, provided in the region of its support bar 10 at the bottom with a plurality of slots 26 and preferably at equal intervals B.
- the slots 26 have primarily the task of making the support bar 10 and thus the movable bar 4 flexurally soft, so that they can better conform to the element 6.
- the slots 26 extend over at least 25%, preferably over at least 50%, the height H of the support bar 10 and they have a strength-optimal cross-sectional contour.
- this material may have a coefficient of friction ⁇ ⁇ 0.3, preferably ⁇ 0.2, in particular ⁇ 0.15
- the respective guided and on the movable bar 4 outside and longitudinally disposed part 16 with the inclined ramp surface 17 is an at least one-piece plate 23 which is releasably connected to the movable bar 4 by means of an indicated screw.
- it can also be permanently connected to the movable bar.
- FIG. 3 shows a schematic perspective view of the movable strip 4 of the strip arrangement 1 according to the invention for a machine for producing a fibrous web shown in FIGS. 2A and 2B.
- the casserole side S.1 of the strip arrangement 1 is visible.
- the movable bar 4 has a head strip 9 and a support bar rigidly connected to the head strip 9.
- the return mechanism 15 comprises a plurality of spaced, guided and on the movable bar 4 outside and longitudinally arranged parts 16 with a respective inclined ramp surface 17, the slope 18 at an angle ⁇ in the range of 5 to 60 °, preferably from 20 to 45 °, in particular from 25 to 35 °, to the longitudinal direction L (arrow) of the movable bar 4 is aligned.
- the respective guided and on the movable bar 4 outside and longitudinally arranged part 16 with the inclined ramp surface 17 is arranged in a longitudinal direction L (arrow) of the movable bar 4 extending groove 22.
- the groove 22 extends in the illustrated embodiment over the entire length of the movable strip 4 and it has a groove depth 22.T, which is preferably equal to or approximately equal, in particular slightly smaller, than the part height 16.T (see FIG. ,
- the parts 16 are preferably arranged in a regular distribution on the movable bar 4.
- the regular distribution may for example provide a respective distance A in the range of 150 to 1,000 mm, preferably 200 to 750 mm, in particular 250 to 500 mm.
- the movable bar 4 is also provided in the region of its support bar 10 on the underside with a plurality of slots 26 and preferably at equal intervals B.
- the slots 26 have primarily the task of making the support bar 10 and thus the movable bar 4 flexurally soft.
- the slots 26 extend over at least 25%, preferably over at least 50%, of
- FIG. 4 shows a schematic cross-sectional view of the C-shaped guide unit 13 of the strip arrangement 1 according to the invention for a machine for producing a fibrous web shown in FIGS. 2A and 2B.
- the shortness K can assume a value in the range from 5 to 50 mm, preferably from 10 to 40 mm, in particular from 20 to 30 mm.
- the respective guided and arranged on the movable bar 4 outside and longitudinal side part 16 with the inclined ramp surface 17 is arranged in a longitudinal direction L (arrow) of the movable bar 4 extending groove 22.
- the groove 22 extends in the illustrated embodiment over the entire length of the movable strip 4 and it has a groove depth 22.T, which is preferably equal to or approximately equal, in particular slightly smaller, than the part height 16.T.
- the strip arrangement 1 extending transversely to the machine direction M (arrow) with the movable strip 4 has a run-on side S.1 at which the element 6 runs onto the movable strip 4, and a discharge side S.2 at which the element 6 runs off the movable strip 4.
- the at least one return mechanism 15 for bringing the movable strip 4 from the illustrated operating position Y into the rest position Z (not shown) is arranged on the feed side S.1. In theory, however, it could also be arranged on the discharge side of the last arrangement.
- the actuating means 5 is in a known manner a filled with a liquid or gaseous medium 11 tube 5.1, which is guided laterally and at least partially in a shell 12 on the underside. However, it may also be in a known manner, a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or other similar lifting element.
- FIG. 5 shows a schematic perspective illustration of the C-shaped guide unit 13 of the strip arrangement 1 according to the invention, shown in FIG. 4, for a machine for producing a fibrous web.
- the fixed C-shaped guide unit 13 of the fixed guide device 7 comprises two fixed guide arms 14.1, 14.2, which surround the movable and not shown strip in their lower region in each case at least partially and on guide surfaces 14.11, 14.12, 14.21 and 14.22 a leading effect on them exercise.
- the guide arm 14.1 having a preferably oblique guide surface 20 and fixed to the C-shaped guide unit 13 of the fixed guide device 7 is shorter than the at least one other guide arm 14.2 of the C-shaped guide unit arranged mutually of the movable and not shown ledge 13 leads.
- the shortness K can assume a value in the range from 5 to 50 mm, preferably from 10 to 40 mm, in particular from 20 to 30 mm.
- the leading and on the C-shaped guide unit 13 inside arranged part 19 with the preferably inclined guide surface 20 is disposed on the short fixed guide arm 14.1.
- the preferred slope 27 of the guide surface 20 on the fixed guide arm 14.1 is at an angle ß in the range of 5 to 60 °, preferably from 20 to 45 °, in particular from 25 to 35 °, to the longitudinal direction L (arrow) of the movable bar. 4 aligned. In a meaningful way, the angle ⁇ takes a smaller value than the angle ⁇ as.
- FIG. 6 shows two adjacent strip arrangements 1 of a wire section 28 for a machine for producing a fibrous web.
- the fibrous web may in particular be a paper, board or tissue web.
- the illustrated wire section 28 includes only two exemplary bar arrangements. In addition, other components and assemblies of the wire section 28 are not shown for clarity.
- each movable strip 4 which comprises a top side and the element 6, in particular the forming fabric 6.1 leading head strip 9 and a support bar 10 arranged on the underside, provided in the region of its support bar 10 at the bottom with a plurality of equally spaced B slots 26.
- the two immediately adjacent and movable strips 4 are arranged parallel to each other such that their respective slots 26 offset in the operating position Y of the movable strips 4, preferably centrally offset from one another, whereby markings in the fibrous web can be largely avoided.
- the offset V is therefore preferably half of the distance B between two adjacent slots 26.
- the individual movable bar 4 is in its in and outboard offset area W with respect to its at least one immediately adjacent and movable bar 4 on the underside with at least one of the Support bar 10 arranged filler piece 29 is provided.
- the single filler 29 is - seen in the machine direction M (arrow) - on a movable bar 4 left and arranged on the next movable bar 4 right, so that - viewed from the middle of the wire section 28 - always the same width X to the movable Last 4 is acted upon. This results in the already mentioned advantages.
- inventive strip arrangement 1 shown in FIGS. 2A, 2B, 3, 4 and 5 and the wire section 28 shown in FIG. 6 are also outstandingly suitable for use in a machine for producing a fibrous web, in particular a paper web. Cardboard or tissue web.
- actuating means 5 shown in the figures, as already stated, in all embodiments, a hose 5.1 filled with a liquid or gaseous medium 11, a pneumatic or hydraulic cylinder, a wedge gear, an eccentric or another similar lifting element.
- the movable bar 4 may generally be a formation or drainage ledge 8, an oil scraper bar, or a scraper.
- the element 6, however, can be a forming fabric 6.1 of a wire section for a machine for producing a fibrous web, a press roll of a press section for a machine for producing a fibrous web or a roll or a cylinder of a wire, press or dryer section for a machine for producing a Be fibrous web.
- the movable strip 4 and the element 6 are therefore in particular from the field of the paper industry, in particular from the field of papermaking and finishing.
Landscapes
- Paper (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008040032A DE102008040032A1 (de) | 2008-06-30 | 2008-06-30 | Leistenanordnung für eine Maschine zur Herstellung einer Faserstoffbahn |
PCT/EP2009/058088 WO2010000683A1 (de) | 2008-06-30 | 2009-06-29 | Leistenanordnung für eine maschine zur herstellung einer faserstoffbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2294261A1 true EP2294261A1 (de) | 2011-03-16 |
EP2294261B1 EP2294261B1 (de) | 2011-10-05 |
Family
ID=41020973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09772383A Not-in-force EP2294261B1 (de) | 2008-06-30 | 2009-06-29 | Leistenanordnung für eine maschine zur herstellung einer faserstoffbahn |
Country Status (6)
Country | Link |
---|---|
US (1) | US8168042B2 (de) |
EP (1) | EP2294261B1 (de) |
CN (1) | CN102076904B (de) |
AT (1) | ATE527409T1 (de) |
DE (1) | DE102008040032A1 (de) |
WO (1) | WO2010000683A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008040032A1 (de) | 2008-06-30 | 2009-12-31 | Voith Patent Gmbh | Leistenanordnung für eine Maschine zur Herstellung einer Faserstoffbahn |
DE102010030804A1 (de) | 2010-07-01 | 2012-01-05 | Voith Patent Gmbh | Druckschlauch |
DE102016120647B4 (de) * | 2016-10-28 | 2018-07-26 | Voith Patent Gmbh | Verfahren zum Betreiben einer Maschine zur Herstellung einer Faserstoffbahn |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4019884A1 (de) | 1990-06-22 | 1992-01-09 | Voith Gmbh J M | Leiste zur nachgiebigen stuetzung eines siebbandes |
FR2714088B1 (fr) | 1993-12-16 | 1996-02-16 | Chleq Frote | Procédé de contrôle et de réglage de l'égouttage d'une suspension fibreuse sur une table de formation d'une machine à papier et dispositif pour la mise en Óoeuvre du procédé. |
FI95935C (fi) * | 1995-03-01 | 1996-04-10 | Valmet Corp | Paperikoneen vedenpoistolaitteen lista |
JP3664857B2 (ja) * | 1997-09-05 | 2005-06-29 | 三菱重工業株式会社 | 抄紙機ツインワイヤフォーマの脱水機器 |
CZ20021719A3 (cs) | 1999-11-17 | 2002-10-16 | Astenjohnson, Inc. | Upevňovač čepele pro sekci s dvojitou formovací tkaninou |
ATE352664T1 (de) * | 1999-12-16 | 2007-02-15 | Metso Paper Inc | Entwässerungsleiste für eine papiermaschine |
IT1320857B1 (it) | 2000-12-12 | 2003-12-10 | Pmt Italia Spa | Gruppo controlama per una macchina per la fabbricazione della carta. |
DE50201952D1 (de) * | 2002-01-24 | 2005-02-10 | Heinz Bartelmuss | Einrichtung zur Einstellung der Lage einer Abstreifleiste |
AT411770B (de) * | 2002-09-12 | 2004-05-25 | Bartelmuss Klaus Ing | Siebleiste für eine papiererzeugungsanlage |
DE102005000175A1 (de) * | 2005-12-05 | 2007-06-06 | Voith Patent Gmbh | Leiste zur nachgiebigen Stützung eines Siebs und Doppelsiebpartie |
DE102006044930A1 (de) * | 2006-09-22 | 2008-04-03 | Voith Patent Gmbh | System zum Breitfahren einer Faserstoffbahn, Verfahren zur Steuerung der Überführ- bzw. Randstreifenüberführung und Maschine zur Herstellung einer Faserstoffbahn |
DE102008040032A1 (de) | 2008-06-30 | 2009-12-31 | Voith Patent Gmbh | Leistenanordnung für eine Maschine zur Herstellung einer Faserstoffbahn |
-
2008
- 2008-06-30 DE DE102008040032A patent/DE102008040032A1/de not_active Withdrawn
-
2009
- 2009-06-29 AT AT09772383T patent/ATE527409T1/de active
- 2009-06-29 CN CN2009801255325A patent/CN102076904B/zh not_active Expired - Fee Related
- 2009-06-29 WO PCT/EP2009/058088 patent/WO2010000683A1/de active Application Filing
- 2009-06-29 EP EP09772383A patent/EP2294261B1/de not_active Not-in-force
-
2010
- 2010-06-30 US US12/827,368 patent/US8168042B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2010000683A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102008040032A1 (de) | 2009-12-31 |
US8168042B2 (en) | 2012-05-01 |
CN102076904B (zh) | 2012-11-21 |
US20100314063A1 (en) | 2010-12-16 |
EP2294261B1 (de) | 2011-10-05 |
CN102076904A (zh) | 2011-05-25 |
WO2010000683A1 (de) | 2010-01-07 |
ATE527409T1 (de) | 2011-10-15 |
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