MXPA06003016A - Support body, holding device therefor, apparatus with such a body for treatment of a web, methods of forming an extended nip in the apparatus and controlling load in the nip - Google Patents

Abstract

A support body (7) for an apparatus having an extended nip (N) that is defined by a contact surface (13) of the support body and an opposed surface (4), the support body having two side surfaces (69, 70) facing from each other and connecting to the contact surface, and a bottom surface (71) facing from the contact surface, the support body being arranged to be moved towards the opposite surface by means of a loading system in order to load the nip via the contact surface. According to the invention the support body is elastically deformable and has its contact surface adaptable to the opposite surface in interaction therewith. The invention also relates to a holding device for such a support body and an apparatus, e.g. a press, for the treatment of a fibre web, said apparatus having such a support body. Furthermore, the invention relates to a method of forming the extended nip in said apparatus by loading the support body by means of the loading system, as well as a method of controlling the load in the extended nip by designing the support body with at least two layers with different elasticity providing a corresponding load profile.

Description

SUPPORT BODY, HOLDING DEVICE FOR THIS # APPARATUS WITH SUCH A BODY FOR THE TREATMENT OF A FRAME, METHODS OF FORMATION OF AN EXTENDED FASTENING POINT ON THE APPLIANCE AND LOAD CONTROL AT THE FASTENING POINT DESCRIPTION OF THE INVENTION The present invention relates to a support body for an apparatus having an extended fastening point which is defined by a contact surface of the support body and an opposing surface, the support body has two. lateral surfaces facing each other and connected to the contact surface, and a lower surface facing the contact surface, and - arranging to be moved in the direction towards the opposite surface by means of a -load system for loading the point Clamping via the contact surface. The invention also relates to a fastening device for such a support body. The invention also relates to an apparatus / press for the treatment of a fiber web, which is manufactured in a machine - paper or cardboard, comprising a first structural element and a second structural element that is movably arranged and has an "opposing surface for interaction" with the first structural element Ref. 170772 while forming an extended fastening point, the first structural element comprises a movable fabric and a support body / press body having a contact surface / surface of press which defines the attachment point together with the opposite surface, the support body / press body has two side surfaces facing each other and connected to the contact surface / press surface, and a lower surface • facing the surface contact / surface press, and it is arranged to be moved in the direction towards the opposite surface by means of a system of load to load the clamping point via the contact surface / press surface. The invention also relates to a method of forming an extended attachment point in an apparatus, comprising the support body. • The invention also relates to a method of controlling the load at an extended attachment point in an apparatus, which comprises the support body. Previously known presses with an extended press clamping point have a so-called press shoe, consisting of a metallic material, such as aluminum or steel, and are designed with a press surface, usually a concave press surface, whose profile is adapted very exactly to the opposite counter-pressure surface. Such a press shoe is very complicated to manufacture and therefore involves a very high cost. Due to the fact that it consists of metal, it is relatively rigid and inflexible. The pressure roller acting as a counter-roller of such a shoe press may have a relatively thick cylinder wall which bears the press shoe forces. According to another embodiment of the counter-roller, it has a relatively thin cylinder wall and is provided internally with a counter-pressure system for the adjustable crowning of the thin cylinder wall or cover and, consequently, deformable depending on the forces that the press shoe has to apply on the counter-roller to obtain the desired load. Also the press shoe can be crowned in accordance with the counter-roller crown, and then it will be usable only in combination with this counter-roller. Alternatively, the metal press shoe can be tilted by means of hydraulic cylinders. A Yankee cylinder has a cylinder cover or wall which is relatively thin, and which is easily deformed by printing the press shoe when the Yankee cylinder is used as a counter-roller. The deformation of the roof varies in an axial direction from the central region in a direction towards the end walls, where the printing is substantially less than within the central region. Therefore, the press shoe will act with a higher pressure on and within the vicinity of the end walls, resulting in increased wear on the edges of the press felt and an uneven load profile along the shoe. of press, which in turn results in variable paper properties transverse to the machine direction. It has been proposed to crown the Yankee cylinder cover by means of an internal counter-pressure system, or to fix two or more rows of hydraulic cylinders on the underside of the press shoe to influence the press shoe to conform the desired surface, in both cases to achieve a more uniform load profile. Both proposals, however, are complicated and expensive to make. The following documents are examples of presses having extended press fastening points. DE 44 05 587 and WO 02/44467 describe a press having a hydrostatic bearing, which includes a press shoe 3 or double press shoes 3a, 3b of the same design. A press band 6 rotates in the upper part of a lubricating fluidized bed of the press shoe 3 with a very small friction. The press shoe, which is made of metal, has a pressure chamber 10 which contains a hydraulic fluid, preferably water. A rectangular pressure equalizing membrane 20, consisting of a suitable solid material, preferably stainless steel, is fixed to the press clamping point side of the press shoe. The pressure equalizing membrane 20 has an outer edge 26, an inner edge 22, and an opening 27 which is defined by the inner edge 22. The pressure equalizing membrane 20, thus resembling a structure, is flexible so that an area edge 21, maintained in direct contact with the hydraulic fluid, can deviate when pressure differences occur between its two sides. These pressure differences arise when leakage of hydraulic fluid occurs through the press fastening point as a result of irregularities in the paper web and / or the envelope surface of the counter roller. Accordingly, the flexible pressure equalizing membrane 20 creates a self-adjusting fastening point 2, which does not have or only a minimum of fluid leakage. Accordingly, through the opening 27 in the pressure equalizing membrane 20, the pressure fluid in the pressure chamber 10 remains in direct contact with the movable band. The complementary addition which has been given in the publication WO in comparison with the publication DE is that the flexible membrane has been provided with "pores 25" within its free edge area 21 to conduct the hydraulic fluid from the chamber pressure 10 to band 6 for the purpose of lubricating the band.

US 5,980,693 discloses presses having an inflatable or tube-shaped loading element, but with a metal shoe between the loading element and the interior of the band. In addition, this part of the shoe is constructed to provide a slow reduction of the pressure at the outlet point attachment. Normally, an abrupt pressure drop is desired. US 3,839,147 discloses a shoe press having two opposing shoes. Each shoe has bases and lower part of metal, sealed against the inside of the band. The side of the shoe that faces the band is a perforated diaphragm, which originates the pressure of the hydraulic fluid in a pressure chamber to load the interior of the band directly. The shoe is of a rather complicated construction with several openings and reinforcements. US 5,951,824 describes an ordinary shoe having ordinary hydraulic loading elements. The shoe is coated with a soft and durable polymer or rubber layer to reduce the risk of damage to the band and shoe of the paper bundles that pass through the press fastening point. EP 0 575 353 discloses a press having a shoe, which is charged with bellows that are arranged inside a metal cover-1-a-shoe, where the band is. Slides around the metal cover.

US 6,334,933 discloses a press having a metal counterpart, which is provided with a plurality of pressure receptacles that are sealed by a metal plate and hoses, which can also contribute to the loading of the opposite portions of the fastening point of the press US 6,387,216 discloses a press that has an open fluid chamber, over which a band runs and which loads the press clamping point. The chamber is sealed by means of web adjustment - under pressure, so that it fits over the edges of the chamber. EP 1 319 744 describes a method for measuring and regulating the pressure of the clamping point in a shoe press, transverse to and along the frame, by means of the measurement and continuous adaptation of the static hydraulic pressure at the reference points above the measuring hoses at the press clamping point. DE 30 30 233 describes a sliding shoe - elastic which is attached to a metal pedestal. The sliding shoe includes a solid body or a hollow body in the form of a hose which can be filled with a pressure medium. The hose is surrounded by an elastic band which is attached to the metal pedestal. The hollow body can be divided into chambers which can be pressurized. to . different pressures. However, a change in pressure in the chamber or chambers does not result in a change in the load at the clamping point due to the fact that the hollow body is allowed to laterally expand during each such increase in pressure. US 4,576,682 discloses a press' with a shoe consisting of two shoe parts each of which is capable of loading the fastening point in a hydrodynamic manner. US 4,568,423 discloses a press with a shoe having a shoe part in the form of a hydrostatic chamber, and two additional shoe parts having a hydrodynamic press function, the additional shoe parts also sealing the hydrostatic shoe part. An object of the invention is to provide an elastic support body which, in relation to the known support bodies, can be manufactured in a simpler manner, without some special machining and without any major consideration to the shape of the opposite surface which is to be opposite, and - which can provide a load profile depending on the pressure that can be applied to the load system in the same way or even in a better way than is possible with a body of conventional metal support with one or more rows of pressure receptacles which are closed by a sliding band.

The support body according to the invention is characterized in that the support body is elastically deformable and has its contact surface adaptable to the opposite surface in interaction with it. The fastening device according to the invention is characterized in that the support body is elastically deformable and has its contact surface adaptable to the opposite surface in interaction with it. The apparatus / press according to the invention is characterized in that the support body / press body is elastically deformable and has its contact surface / press surface adaptable to the opposite surface in interaction therewith. The method of forming an extended fastening point according to the invention is characterized by the steps of: mounting the support body on the fastening device; load the body of. support by means of the loading system; and displacing the contact surface of the support body in the direction towards the opposite surface under the influence of the load to elastically deform the contact surface and adapt to the opposite surface.

The method of controlling the load at an extended fastening point according to the invention is characterized by the steps of: designing the support body of at least two layers of elastic material having different elasticity; mounting the support body in the clamping device; load the support body by means of the loading system; and - displacing the contact surface of the support body in the direction towards the opposite surface under the influence of the load to elastically deform the contact surface and adapt to the opposite surface to obtain an extended attachment point having a profile of load depending on different elasticities of the layers. The expression "point of attachment" will be interpreted in its broadest meaning to involve such a point of attachment that is defined by a wire mesh and support body. In the following, the invention will be further described with reference to the figures. Figure .1 shows a press according to the invention with a press body and a clamping device according to a first embodiment.

Figure 2 is a perspective view of the press body and the clamping device according to Figure 1. Figure 3 is a cross section of the press body and the clamping device according to Figure 2. Figure 4 is a perspective view of the fastening device according to Figure 2, without a press body. Figure 5 is a perspective view of the press body itself according to Figure 2. Figure 6 is a cross section of the press body according to Figure 5. Figure 7 is a graph depicting the pressure curve which is obtained with the press body according to the first modality. Figures 8-10 schematically show a press body and a fastening device according to the invention and different types of loading systems. Figure 11 shows schematically a press body consisting of three vertical layers of elastic material with different elasticity. Figure 12 is a graph representing the pressure curve which can be obtained with the press body according to Figure 11.

Figures 13 and 14 schematically show press bodies consisting of two and three, respectively, inclined layers of elastic material with different elasticity. The invention will be described in connection with a press for draining a fiber web. Naturally, in addition to the press section, the invention can be applied to any apparatus suitable for the treatment of a fiber web, for example an apparatus in a drying or forming section of a paper or cardboard machine, and in a calender for surface treatment of the fiber web. Figure 1 schematically shows portions of a press, which is arranged in the press section of a paper or cardboard machine to squeeze water from a wet, formed fiber web. Advantageously, the invention can be used in a paper machine of the weaving machine type. The press includes a first press member 1 and a second press member 2. The press elements 1, 2 are interacting with each other to form an extended press n-point attachment. The second press member 2 includes a member of counter-pressure which is active at the press release point * N and which has a continuous, movable surface 3 which forms an opposite surface or counter-pressure surface 4, which can be curved or linear, inside the press fastening point N. In the shown embodiment of the press, the second press member 2 consists of a counter-roller in the form of a pressure roller. The counter-roller may also be a drying cylinder in a conventional drying section, or a drying cylinder in a woven machine designated Yankee cylinder. In this case, the counter-pressure member includes the cylindrical wall 5 of the counter-roller 2 the wrapping surface of which forms the continuous, movable surface 3, which within the extended press clamping point N forms the counter surface. -pressure 4, which can be at room temperature or at an elevated temperature by means of heating. As long as the cylinder wall 5 is thick and quite stable, it constitutes the counter-pressure member as such. In the case when the cylinder wall 5 is thin and deformable, the counter-pressure member additionally includes an internal support system (not shown), which provides the necessary counter-force. The first press member 1 includes a movable web 6 of a flexible material, a support body 7 in the form of a press body, a clamping device 8 for mounting the press body 7, a support for mounting the press body 7. clamping device 8, and a loading means for activating the press body 7. The movable strip 6 describes a closed circuit within which the press body 7 and the support are located. Prior to the press clamping point N, the movable band 6 is arranged to find a press felt 9 which carries a wet fiber web W which will be dewatered when it passes through the extended press clamping point N. The system of loading is arranged to be activated to influence the press body 7 during press operation to obtain the pressing forces which the press body 7 exerts against the counter-roller 2 via the web 6, the press felt 9 and the frame W. The press body 7 is arranged to decide the length of the extended press clamping point N, as seen in the machine direction. The press body 7 has a free sliding surface 10 (see figure 3) with which the rotating band 6 is in sliding contact during the operation of the press, whereby the. sliding surface 10 completely or partially forms a contact surface or press surface 13, which together with the counter-pressure surface 4 defines the press clamping point N. in addition to the sliding surface 10 / press surface 13, the press body 7 has two vertical side surfaces 69, 70 (see Figure 6) facing each other, being parallel to each other and connected to the sliding surface 10 / press surface 13, and a lower surface 71 which faces the sliding surface 10 / press surface 13 and connected to the side surfaces 69, 70 at right angle. A spraying device (not shown) is mounted upstream of the press body 7 to supply the lubricant inside the band 6 to form a film which reduces the friction between the rotating band 6 and the press body 7. In the displayed modality of the press, the first press member 1 consists of a pressure roller, the cover of which forms the movable strip 6 which therefore describes a substantially circular circuit. In an alternative embodiment of the press (not shown), the flexible movable band is arranged to run in a non-circular circuit, for example in a substantially oval circuit or in a substantially triangular circuit, around the press body and one or more rollers guide. In the embodiment shown, the pressure roller 1 has two rotationally mounted, circular end walls (not shown), whereby the cover 6 is rigidly mounted to the peripheries of the end walls to rotate together therewith. The cover 6 and the end walls define a closed space in which the support is located, the support includes a stationary support beam 12 axially extended between the end walls without touching them. Also the press body 7 and its holding device 8 are axially extended between the end walls without touching them. Alternatively, the second press member 2 can be of the same or substantially the same design as the first press member 1 described above, whereby the press attachment point is consequently formed by two press bodies according to the invention . According to the invention, the press body 7 is elastically deformable and has its press surface 13 adaptable to the counter-pressure surface 4 in interaction with it. This adaptation takes place under the influence of a load created by the loading system in the press body 7 in the direction towards the counter-pressure surface 4 for loading the complete press clamping point N correspondingly. The definition that the press body is elastically deformable does not necessarily imply that the entire press body consists of an elastic material, but should be seen, in the context of the invention, in a broader sense, namely that the press body it has at least one functional portion that consists of an elastic material and that meets the definition. For practical reasons and technical production, and in accordance with the most preferred embodiments, the press body is in its entirety made in one piece of an elastic material or several pieces of elastic material, where the pieces have different elasticity. The press body forms the full length of the press clamping point seen in the machine direction. The press body 7 and its holding device 8, which is a part of the press according to Figure 1, are shown in detail in Figures 2 and 3, while these two structural elements are shown separately in detail in the drawings. Figures 5 and 6 and Figure 4, respectively.

As is evident from Figure 4, the fastening device 8 includes an elongated beam-shaped fastener 22, which is stably and provided with an axially through channel 16 having a rectangular or U-shaped cross section. and which is defined by two lateral support portions 17, 18 and a lower support portion 19 connecting them, the three portions 17, 18, 19 form two internal side surfaces 66, 67 (see Figure 6) facing each other and parallel each other, and an internal bottom surface 68 that forms a right angle to the side surfaces £ 6, 61 .. The three surfaces € 6, 67, 68 therefore define the channel 16. Furthermore, it is evident from figure 2 that the clamping device includes two end plates 23 for assembly - removable to the opposite, parallel, end surfaces of the fastener 22 as well as two fixing plates 24 for removable mounting on the upper part of the fastener portions. lateral support 17, 18. As is evident from figures 2 and 3, the lateral support portion 17, which is proposed to be located at the entrance of the press fastening point N, is provided with a recess 25 extended between the plates 24 to expose the pressure body 7. Figures 5 and 6 show the press body 7, which is proposed to be mounted in the channel 16 of the fastener 22 and which has a transverse section! which is adapted to the cross section of the channel 16, so that no play arises between the opposite side surfaces 67, 69; 68, 70 and so that the press body 7 with its lower surface comes to rest against the lower surface 68 of the channel 16. The press body 7 has an upper portion 31 that includes the sliding surface 10 and is arranged to be located outside the clamping device 8, as shown in the figures, at least when the press body completely fills the channel 16. To avoid undesired lateral deformation of the upper portion 31 it has a limited dimension outside the clamping device, without However, this dimension is sufficient to prevent the clamping device 8 from coming into contact with the band 6 when the press clamping point is loaded. The free sliding surface 10, which will face the counter-roller 2, and with which the rotating band 6 will be in sliding contact during the operation, is, as seen in a cross-sectional view, designed with a shape in predetermined arc for forming an initial curved surface portion 32 having a predetermined radius, and a surface portion 33 that is tangential to the curved surface portion 32 and extended to the acute corner 34 which the sliding surface 10 forms with the surface side 70 that is fixed in the machine direction. The purpose of the curved surface portion 32 is to create a wedge between the rotating band 6 and the curved surface portion 32 to enable the lubricant to remain in the band 6 therein while forming a film between the band 6 and the surface 10. The corner 34 forms the outlet of the press clamping point N, while the entry of the press clamping point N in the curved surface portion 32 comes to float depending on the pressure provided by the loading system. The press body 7 has recessed end portions 35 which enable a simple removable assembly in the fastener 22 by means of the fixing plates 24, as is evident from Figure 2. As mentioned in the above, the body of Press 7 is elastically deformable to cause the press surface 13 to be formed in accordance with the counter-pressure surface 4 of the counter-roller. As is evident from Figure 6, the press body 7 is made of a piece of an elastic material. The elastic deformation occurs both in the direction of the machine DM and transverse to the direction of the machine DT depending on the shape of the counter-pressure surface 4, that is to say, the press surface 13 is shaped and adopts the configuration of the counter-pressure surface 4, and the portion of the sliding surface 10 defining the press fastening point, that is, the press surface 13, which in this case corresponds to the press area 15, changes its shape according to the opposite counter-pressure surface 4 of the counter-roller 2. The press body 7, which is used in the embodiments according to the figures 1-6, and is designed in one piece, achieves a load profile or pressure curve as illustrated in Figure 7. Figures 8-14 schematically illustrate different embodiment of press body combination 7, holding device 8 and charging system. In the embodiment according to Figure 8 the loading system comprises an energy transmission device 50 in the form of hydraulic cylinders, pneumatic cylinders, jacks or the like which are mounted in two rows between the fastener 22 and the support beam 12. The press surface 13 is tilted. with respect to the lateral surfaces 69, 70. By the influence of the energy transmission device 50 the press body 7 is pressed against the counter-pressure surface 4 which elastically deforms to conform and adopt the configuration of the surface of counter-pressure 4. In the embodiment according to Figure 9 the charging system comprises an energy transmission device 50 which includes a pressure chamber 57 which is in communication with a source of pressure medium (hydraulic or pneumatic) through a conduit and a suitable control member (not shown) to regulate the pressure in the pressure chamber 57. In this case the fastener is rigidly mounted to the support beam 12. The pressure chamber 57 is defined by an inner portion of the channel 16 in which the press body 7 is received in a sealing manner. The press body 7 therefore functions as a piston to be moved in a sliding manner relative to the counter-roller 2 and elastically deformed against it in dependence on the pressure prevailing in the pressure chamber 57. Since the press body 7 consists of elastic material by itself will form a seal against the side walls 66, 67 of the fastener 22. Alternatively, if desired, special seals (not shown) can be mounted on the side walls 66, 67 to seal against the side surfaces opposite 69, 70 of the press body 7. In the embodiment according to figure 10 the loading system comprises a combination of the modes according to figures 8 and 9, that is to say a first energy transmission device 50 of the type defined and a second power transmission device 52 of the defined type. In such an arrangement the press body 7 can be mounted in a first starting position having its press surface 13 at a free touch distance from the opposite counter-pressure surface 4, wherein the holding device 8 and the Press body are arranged to be moved together by means of the first energy transmission device 50 in the direction towards the counter-pressure surface 4 to a second starting position having the press surface 13 of the press body 7 in contact with or closely in contact with the counter-pressure surface 4 (via the band 6). The pressure in the pressure chamber 57 is then raised so that the press body 7 slides from the support holding device at a small distance and is pressed against the counter-pressure surface 4 while becoming elastically deformed to form a training position of fastening point with a desired load profile, wherein the first energy transmission device now at first hand functions as a counter-support. In the embodiments described above, the press body 7 is made in a piece of elastic material.

In the embodiment according to Figure 11 the press body 7 is made of three longitudinal vertical pieces 53 of elastic material with different elasticity coefficients, the pieces 53 form layers and are parallel with the vertical lateral surfaces 66, 67 of the channel 16 Such a multi-layer press body 7 produces a stepped loading profile or pressure curve as illustrated in Figure 12. Figures 13 and 14 illustrate further examples of multi-layer press bodies 7, wherein the surfaces of the layers 72 and 73, respectively, contacted with each other are inclined, ie the surfaces define an acute angle with the vertical side surface downstream 70 of the press body 7. The layers have different elasticities or hardness values, as indicated by the surfaces designated with line and squares, to achieve load profiles with different progress depending on the compression or deformation of the different layers. With the exception of the embodiment according to Figure 10, the press bodies 7 are designed with a press surface 13 that is inclined so as to define an acute angle almost below 45 °, ie between 42 ° and 44.9 ° , with the downstream side surface 71 of the press body 7 thereby initiating loading at the exit portion of the clamping point when the press body moves towards the counter-pressure surface 4. In the embodiment according to Figure 10 on the other hand, the press surface 13 is flat so as to define a right angle to the upstream side surface 70 of the press body 7. In an alternative embodiment (not shown) of the press body, at least one of the elastic layers is made of at least three sections, which are distributed transverse to the machine direction, of elastic material of at least two different elasticities to obtain load profiles - which describe different curves depending of the composition of the sections in each cross section of the press body. In the embodiments described above, the press body is homogeneous, that is, it has no enclosed cavities. However, if desired, the press body can be made with one or several enclosed cavities or enclosed cells so that each cavity or cell is without any communication with the surrounding means. One or more enclosed cavities or enclosed cells will increase the ductility of the press body in connection with its sliding surface and relative to the counter-roller. The press body according to the invention has a number of essential advantages of which the following may be mentioned.

It is self-conforming to the configuration of the counter-pressure surface. The deformation of the counter-pressure surface conforms and follows. - Prevents abnormal wear of the edges of the press felt. It is forgiving to, for example, a sheaf of paper that passes through the press fastening point. - It can be manufactured at a very low cost. It can be designed to control the load within the complete press clamping point, or within successive sections of the press clamping point and independently of each other. The support bodies which are described above and shown in the figures are designated press bodies, since they are used in a press apparatus. Naturally, the same modalities of the press body can be used in another apparatus for the treatment of a fiber web in a paper or cardboard machine, or in a calender. When the invention is applied to, for example, a wire mesh section, the band 6 of the first press member 1 in Figure 1 can be replaced with a cloth, such as for example a wire cloth.

The load at the clamping point can vary from 0 to 3000 kN / m. The support body may have a dimension in the machine direction which is typically 50-500 mm. The desirable elastic properties of the support body are achieved by means of a material, which has a coefficient of elasticity which is substantially less than that of the metal, such as steel and aluminum, so that the support body can be elastically compressed. The typical hardness values of the elastic material is 50-95 Shore A. The elastic material should also give the support body a sufficient strength / hardness to withstand the wear, but at the same time make the support body elastically deformable enough to obtain the desired function according to the invention. As elastic materials, plastic and rubber materials can be used, such as polymers, composite materials, which can be reinforced with, for example, glass fibers, carbon fibers or textiles. At present, polyurethane is a preferred polymer. If desired, the contact surface of the support body can be covered by a thin, interchangeable wear protection. { not shown), the side edge portion of which is rigidly mounted to the upstream side of the fastener, while the other side edge portion is free to follow the movement and deformation of the support body. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (33)

WO 2005/038130 at 1 Bill illUBi II Ifilll llili illii HLLL lili I lí LLI lllli LILI lili! ? llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll SK, TR), OAPI (BF, BJ, CF, CG, Cl, CM, GA, GN, GQ, For two-letter codes and other abbrevialions.) Referred "Guid-GW, ML MR, NE, SN, TD, TG). an e Notes on Codes andAbbreviations "appearing ai ning be.gin- ofeach regulate the issue ofthe PCT Gatelle. Pubiishcd: - wilh inlernalional search repon CLAIMS Having described the invention as above, the contents of the following claims are claimed as property:

1. Support body for an apparatus having an extended attachment point defined by a contact surface of the support body and an opposing surface, the support body - has two lateral surfaces "facing each other" and connected to the surface of the support body. contact, and a lower surface facing the contact surface, is arranged to be moved in the direction towards the opposite surface by means of a loading system to load the attachment point via the contact surface, and is elastically deformable and has contact surface adaptable to the opposed surface in interaction with this, characterized in that the support body is made of at least two layers of elastic material, the layers are joined to a unit.

Support body according to claim 1, characterized in that each of the layers forms a contact zone of the contact surface and has different elasticities.

3. Support body according to claim 2, characterized in that it is made of rubber- or polymers with good elasticity and good strength.

Support body according to claim 3, characterized in that the polymer is polyurethane.

5. Body support according to any of claims 1-4, characterized in that the support body is adapted to operate at a load in the nip which varies from 0 to 3000 kN / m.

Support body according to any of claims 1-5, characterized in that it has a dimension in the machine direction of 50-500 nm.

7. Support device for an apparatus having an extended attachment point, characterized in that it comprises a support body according to any of claims 1-6, and a fastening device for the support body arranged to form a counter- support for the two lateral surfaces of the support body and directly or indirectly form a counter-support for the lower surface of the support body, and because the support body has an upper portion which has the contact surface and is arranged to protrude the clamping device at least in the clamping point forming position of the support body.

8. Support device according to claim 7, characterized in that the holding device has a space to receive the support body, the space has two lateral surfaces for interaction with the opposite lateral surfaces of the support body, and a lower surface that faces the lower surface of the support body.

Support device according to claim 8, characterized in that the upper portion is arranged to protrude from the holding device, because the lower surfaces of the support body and holding device are in direct contact with each other, and because the The load comprises a power transmission device arranged to move the clamping device together with the support body to load the clamping point.

10. Support device according to claim 9, characterized in that the energy transmission device includes hydraulic cylinders, pneumatic cylinders, jacks or the like.

11. Support device according to claim 8, characterized in that the lower surface of the support body is located at a distance from the lower surface of the fastening device to define a chamber enclosed between these, and in that the charging system comprises an energy transmission device that includes a pressure chamber formed by the enclosed chamber and is arranged to be pressurized to move the support body relative to the clamping device to load the clamping point while the support body is elastically deformed.

12. Support device according to claim 8, characterized in that the lower surface of the support body is located at a distance from the lower surface of the fastening device to define a chamber enclosed between these, because the loading system comprises a first energy transfer device arranged to move the clamping device together with the support body of a first starting position with the contact surface of the support body at a distance from the surface opposite a second starting position with the surface of contact of the support body located adjacent or close to the opposite surface, and a second energy transmission device comprising a pressure chamber formed by the chamber enclosed and arranged to be pressurized with an increased pressure to move the support body relative to to the clamping device to load the clamping point while the support body is elastically deformed to form an operating position of attachment point formation.

13. Clamping device for a support body according to any of claims 1-6, characterized in that the clamping device is arranged to form a counter-support for the two lateral surfaces of the support body and directly or indirectly form a counter -support for the lower surface of the support body, and in that the support body has an upper portion which has the contact surface and is arranged to project from the fastening device at least in the fastening point formation position. of the support body.

Clamping device according to claim 13, characterized in that it has a space for receiving the support body, the space has two lateral surfaces for interaction with the opposite lateral surfaces of the support body, and a lower surface facing the bottom surface of the support body.

15. Clamping device according to claim 13 or 14, characterized in that the upper portion is arranged to protrude from the clamping device, because the lower surfaces of the support body and clamping device are in direct contact with each other, and because the charging system comprises a power transmission device arranged to move the clamping device together with the support body to load the clamping point.

Clamping device according to claim 15, characterized in that the energy transmission device includes hydraulic cylinders, pneumatic cylinders, jacks or the like.

17. Clamping device according to any of claims 14-16, characterized in that the lower surface of the support body is located at a distance from the lower surface of the clamping device to define a chamber enclosed between these, and because the system The load comprises a power transmission device that includes a pressure chamber formed by the enclosed chamber and is arranged to be pressurized to move the support body relative to the clamping device to load the clamping point while the support body is elastically deformed. 1-8.

Support device according to any of claims 14-17, characterized in that the lower surface of the support body is located at a distance from the lower surface of the clamping device - to define a chamber enclosed therein, because the system of The load comprises a first energy transfer device arranged to move the holding device together with the support body from a first starting position with the contact surface of the support body at a distance from the opposite surface to a second starting position. with the contact surface of the support body located adjacent or close to the opposite surface, and a second energy transmission device comprising a pressure chamber formed by the chamber enclosed and arranged to be pressurized with an increased pressure to move the body of support in relation to the clamping device for loading the clamping point while the support body is elastically deformed to form an operating position of clamping point formation.

19. Apparatus for the treatment of a fiber web, which is manufactured in a paper or cardboard machine, comprising a first structural element and a second structural element that is movably arranged and has an opposite surface for interaction with the First structural element while forming an extended fastening point, the first structural element comprises a movable fabric and a support device comprising support body having a contact surface which defines the fastening point together with the opposite surface, the support body has two lateral surfaces facing each other and connected to the contact surface, and a lower surface facing the contact surface, is arranged to be moved in the direction towards the opposite surface by means of a loading system to load the fastening point via the contact surface, and is elastically deformable and has its contact surface adaptable to the opposite surface in interaction with it, characterized in that the support body is made of at least two layers of elastic material, the layers join a unit.

20. Apparatus in accordance with the claim 19, characterized in that the support device also comprises a clamping device for the support body arranged to form a counter-support for the two lateral surfaces of the support body and directly or indirectly form a counter-support for the lower surface of the body of support, and in that the support body has an upper portion which has the contact surface and is arranged to project from the fastening device at least in the position of operation of forming the fastening point of the support body.

Apparatus according to claim 19, characterized in that the support body is further designed according to any of claims 2-16.

22. Apparatus in accordance with the claim 20, characterized in that the fastening device is further designed according to any of claims 13-18.

23. Apparatus according to any of claims 19-22, characterized in that also the second structural element comprises a support body having a contact surface forming the opposite surface, wherein both support bodies are designed in accordance with any of the Claims 1-6.

24. Press for the treatment of a fiber web, which is manufactured in a paper or cardboard machine, comprising a first press element and a second press element that is movably arranged and has an opposite surface for interaction with the first press member while forming an extended press clamping point, the first press member comprises a movable band and a press device which comprises a press body having a press surface which defines the clamping point in conjunction with the opposite surface, the press body has two side surfaces facing each other and connected to the press surface, and a lower surface facing the press surface, is arranged to be moved in the direction toward the opposite surface by means of of a loading system for loading the clamping point via the press surface, and it is elastically deformable and has its surface press adaptable to the opposite surface in interaction with this, characterized in that the support body is made of at least two layers of elastic material, the layers are joined to one unit.

25. Press according to claim 24, characterized in that the press device also comprises a clamping device for the support body arranged to form a counter-support for the two lateral surfaces of the press body and directly or indirectly form a counter -support for the lower surface of the support body, and in that the press body has an upper portion which has the press surface and is arranged to project from the clamping device at least in the clamping point forming position of the support body.

26. Press according to claim 24 or 25, characterized in that the opposite surface and / or the press surface are arranged to be heated.

27. Press according to any of claims 24-26, characterized in that the press body is designed according to any of claims 1-6.

28. Press according to any of claims 24-27, characterized in that also the second press element comprises a press body. having a press surface forming the opposite surface, wherein both press bodies are designed in accordance with any of claims 1-6.

29. Method of forming an extended attachment point in an apparatus comprising a support body designed according to any of claims 1-6, characterized in that the method comprises the steps of: mounting the support body in a support device. fastener designed in accordance with any of claims 13-18; - load . the support body by means of the loading system; and displacing the contact surface of the support body in the direction towards the opposite surface under the influence of the load to elastically deform the contact surface and adapt to the opposite surface.

30. Method of controlling the load at an extended attachment point in an apparatus comprising a support body designed in accordance with any of claims 1-6, characterized in that the method comprises the steps of: designing the support body of at least two layers of elastic material having different elasticity; mounting the support body in a clamping device designed in accordance with any of claims 13-18; load the support body by means of the loading system; and displacing the contact surface of the support body in the direction towards the opposite surface under the influence of the load to elastically deform the contact surface and - the adaptation to the opposite surface to obtain an extended attachment point having a profile of load depending on different elasticities of the layers.

31. Use of a support body according to any of claims 1-6 as a press body in a press apparatus in a paper or cardboard machine.

32. Use of a support body according to any of claims 1-6 as a support plate for a transportation apparatus in a paper or cardboard machine.

33. Use of a support body according to any of claims 1-6 as a winding support in a winder of a paper or cardboard machine.