FI122220B - Arrangement and arrangement in the body of a fiber web machine - Google Patents

Description

ASSEMBLY AND DEVICE ON THE FIBER MACHINE BODY

The invention relates to an arrangement in the body of a fiber web machine comprising: 5 - a frame structure with adaptable gaps for passing the fabric through the frame structure, - an opening mechanism for arranging the gaps, - a locking mechanism for integrating the frame structure at the gaps.

Further, the invention also relates to a device for fitting to the body of a fiber web machine.

Frame structures of a fiber web machine equipped with removable spacers are known in the art. Removing the spacer-15 pads allows the closed-loop tissue to be inserted laterally between the frame beams, i.e. inside the machine. Body use of cantilever beams for treatment is typically a main component carried by sex after the removal of the spacers. The bracket to the body 20 provides openings at the locations of the removed spacers through which the fabric can be moved between the frames and also removed from the machine, i.e. between the frames. Typically, snacks lifted manually out of alignment, the treatment of side frame members to each other, thus locking the frame 25 in a stable structure intact integrate the eyebolts is opened and the frame system is cantilevered.

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However, known snacks have a number of solutions to their problems.

o any problems. The w 30 snacks that are subjected to high loads are heavy, which poses a safety risk when handling them. In addition, it takes a relatively long time to remove and replace them. The skeleton makes the vibration sensitive due to snacks. With the recently introduced O) g off-the-shelf machine concepts, the handling of snacks is slow. It is quite common for snacks to be processed on a paper machine at least once a month per tissue cycle.

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The edging may be replaced, at least in part, by a solution according to FI patent 103421, for example. Here, on the treatment side of the fiber web machine, a special tissue penetration device is arranged between the vertical frame beams. In the drive unit 5, the drive unit acts as a drive system surrounding the belt. The boarding device makes it possible to dispense with edging and special snacks to be removed in at least part of the hull. However, the access device does not eliminate the need for the frame to be unlocked, which is difficult to arrange with the access device 10.

It is an object of the invention to provide an arrangement in the body of a fiber web machine, whereby the body structure of the fiber web machine at the points corresponding to the tissue penetration intervals can be united by a load balanced lock which is simple and quick in operation. In addition, the invention also relates to a device for fabric which is adaptable to the body of a fiber web machine. The features of the arrangement according to the invention are set forth in claims 1 and 20 of device 11.

The arrangement according to the invention achieves a particularly balanced locking of the loaded frame structure at the tissue penetration openings and reduces the torque applied to the frame beam. In particular, the invention is suitable for T-application with run-in devices. In this case, the locking can be applied, for example, to the housing body of the access device and / or the access device? internal actuator housing.

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£ 30 The invention allows control of the frame locking, for example, when automatically changing i'-fabric without manually opening / securing several bolts. According to the invention,

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o It is possible for us to replace, for example, the eyebolts which

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The tightening has been known to require a lot of force and where each of the 35 screws has been individually tightened.

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The invention significantly accelerates tissue exchange. In addition, the frame will be stiffer. Other additional advantages achieved by the invention will be apparent from the description and the features of the appended claims.

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The arrangement and apparatus of the invention, not limited to the following embodiments, will be described in more detail with reference to the accompanying drawings, in which: Figure 1 shows an example of a side section of a press section of a fiber web machine;

Figure 2 illustrates a first embodiment of a locking mechanism,

Figure 3 illustrates one possibility of implementing the motion mechanism 15 in the embodiment of Figure 2,

Figure 4 is a schematic diagram of an embodiment of the locking device according to the invention,

Figure 5 shows an alternative way of implementing the locking according to the principle shown in Figure 2, Figure 6a shows another embodiment of the locking mechanism seen from one side axially,

Figure 6b is an axial view of the embodiment of Figure 6a,

Fig. 7a shows the locking mechanism of Figures 6a and 6b in principle without a locking plate, viewed from the side, o, Fig. 7b shows a cross-section of the locking mechanism of Fig. 7a,? Fig. 8 shows an embodiment of Figs. 6a and 6b in cross-section,

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£ 30 Figure 9 shows an alternative embodiment to Figure 6a

Is "for locking and cd Fig. 10 illustrates another embodiment of implementing a frame frame lock.

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Figure 1 shows an example of a press section of a fiber web machine viewed from the treatment side. The press section comprises a frame structure 11 having vertical and horizontal beams 11.1, 11.2. The load is supported especially by vertical beams, which can also be skewed. The load-bearing beams in the direction of gravity are referred to as the vertical beam, but the designation is not intended to in any way limit the shape or position of the beam.

For the part assembly, in this case, one or more fabrics 20 may be fitted to the press. Fabrics 20 formed as endless loops are supported by rolls 33 supported on the frame beams 10.1, 11.2. The fiber web machine typically has a plurality of closed-loop fabrics that need to be replaced as needed. For purposes of this application, a fiber web machine is intended to include, for example, paper, board, tissue and pulp machines and belt calenders with Gauge-15 fabrics. Closed fabric loops may include, for example, wires on the forming member and felt and straps on the press member.

Tissue-side exchange 20 to the frame structure 11, 20 is possible to form the through-slots. through the through slots 20 of tissue is possible to bring the front side of the frame structure 11 through. One way to form the slots is to provide a fiber-web machine-side frame structure 11 between the vertical and horizontal frame beams 11.1, 11.2 slits. It is possible to replace the tissue 20 constituting the loop 25 closed through the gaps. In this exchanging means, at least the public ^ 20 exporting tissue treatment and the use ^ between the side frames. Then on the side of the machine and so on? The tissue is transferred outside the front side of the frame structure O) ^ 11 through it from one side to the other side of the machine, or

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h · CO SJ front side frame 11 has vertical and horizontal beams 11.1, 11.2, O) which is movable between the intermediate structures 13, 34.

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Intermediate structures may include, for example, a device 13 for a penetration-35 of tissue 20 or a removable snack 34. The access devices 13 are shown in principle in FIG. 1 and related basic technology is documented, for example, in the applicant's patent applications. A general schematic view of the drive device 13 is shown in Figure 4. Generally, the drive device 13 may include a two-piece housing body 13.1, 13.2 and 5, an internal two-part actuator body 41 of the drive device 13. The actuator body 41 may include fluid chambers 40. The lead-through gap 12 may be formed between actuator body blocks 41 and thus also water chambers 40. Correspondingly, the lead-through interval 12 may also be formed between the housings 13.1, 13.2 of the housing body block 10.

In Figure 1, the drive-in devices 13 are disabled, i.e. they are unpressurized. In this case, the load of the vertical beams 11.1, 11.2 is resting on the support blocks in connection with the access devices 13 and the body surfaces of the access devices 13. According to a sovellusmuo-do-in of the device 13 may constitute a mechanism via opening slots for arranging the frame structure 11, such as the tending side of the frame structure 11 of the vertical beams 11.1, 11.2. Correspondingly, the access device 13 may also be located at the very bottom of the frame 20 structure 11 where it is possible to provide an openable closure passage between the frame beam 11.1 of the frame structure 11 and the base plate 11.3, i.e.

25 The frame 11 also includes at least one locking mechanism 10.1 - 10.4 ^ front side of the frame structure 11 sprawl, the through ^ slots columns. means, for example, defragmenting the front side * -? on either side of the frame structure 11

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docking of frame members 11.1, 11.2 or frame 11.1 and base plate frame-x £ 30 roads 11.3. In other words, it is a matter of ensuring that the most vertical, horizontal and base slab beams 11.1 to 11.3, more generally the frame members, are interconnected by:

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after the locking, the frame structure 11 forms a convenient

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such a rigid and load-bearing structure. Lock-35 10.1 to 10.4 ensures that the beam joint 11.1, 11.2 and the joint 6 between the beams 11.1 and the baseplate 11.3 are properly maintained. In addition, locking 10.1 to 10.4 also ensures sufficient torsional stiffness of the vertical and horizontal beams 11.1, 11.2 so that they form the main solid structure when locked.

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In the frame 11 of Figure 1, a plurality of different locking mechanisms 10.1 to 10.4 may be applied, all of which may be applied at different points of entry of the same frame structure 11. The locking mechanism 10.1 to 10.4 of the drive device 13 is arranged in connection with the vertical beams 11.1, 11.2 so as to act symmetrically on the portions 11.1, 11.2 of the frame structure 11 on both sides of the lead-through. In this case, for example, symmetrical action is understood to mean symmetry with respect to the plane or line when the latches 10.1 to 10.4 are provided on the sides of the drive means 13. Thus, a force-balanced locking is achieved while at the same time applying a uniform load to the body 11. Correspondingly, the locking of the body 11 at the entry device 13 in connection with the base plate 11.3 is equally symmetrical. In this case, the locking is applied to the frame beam 11.1 above the driving device 13 in the frame 20 11.

Figures 2-9 show some embodiments of the locking mechanisms 10.1 to 10.3. According to one embodiment, the locking mechanism 10.1 to 10.3 may include, as a basic function, movable-ground-mounted locking members 14, 15, which are openably adapted to be executed, and in addition linear actuation 16, for moving the locking members 14, 15. In addition to the mechanism 10.1 sl-? 10.3 may also include a motion transducer 17 disposed between the locking members 14, 15 and the linear actuator 05 ^ 16. The linear motion x 16 of the transducer 17 can be converted to a rotational motion of the locking members 14, 15. Linear actuation 16 provides a simple way for cd to rotate the locking members 14, 15 and, as a result, lock and unlock it. On the other hand,

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which 14, 15 achieves a number of different advantages, as shown in the following 35.

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Figures 2-5 show a first embodiment of the linear actuated locking mechanisms 10.1, 10.2. Arrangements according to these embodiments can be mounted, for example, on an existing penetration device 13, an example of which is illustrated in Figure 4. In embodiments, the actual lifting and lowering of the frame 11, i.e. forming gaps between vertical beams 11.1, 11.2 and closing the gaps .

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according to figures 2-5 the locking mechanism 10.1, 10.2 of the frame structure 11 of the frame beams 11.1, 11.2 or the frame beam 11.1 and the base plate 11.3 is attached releasably to each other, further includes 11.3 15 side of the first frame beam 11.1 or base plate, in general, arranged in connection with the first 12 via slot-side articulation point arrangement 18. The pivot points of the arrangement 18 is provided as a locking member 14 which may rotate with respect to the pivot point arrangement 18. 11.2, 11.1 of the second side of the frame beam, generally, in connection with the through slot 12 of the second half 20 has an indentation 19. The indentation 19 for kynsistössä 14 is a gripper 20 which is adapted to the indentation 19 when the kynsistöä 14 is pivoted relative to the pivot point 18. The grippers 20 and indentations 19 may have been fitted with mild anchorage which secures the body 11 to lock.

In addition, the locking mechanism 10.1, 10.2 also includes a linear drive 16 for rotating the claw 14 with respect to the pivot point arrangement 18.

? When the grippers 20 are mounted on the vertical beam 11.1, 11.2 or in the recess 19 of the adapter at its 05 ^ end, the nail 14 locks the frame beams 11.1, 11.2 of the frame structure 11 against each other as well as the base plate 11.3 of the frame beam 11.1. The locking takes place on both sides of the S-beams 11.1, 11.2 and thus symmetrical 05 outside it 19, they are turned away from the area between the frame beams 11.1, 11.2 35 so as to allow the passageway 12 to be arranged in the frame structure 11, such as When the grippers 20 are in love-

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8 between the beams 11.1, 11.2. Figures 2 and 5 show the locations at which the passageway 12 is formed from the latches 10.1, 10.2.

In the embodiment of Figure 2, an example of a transducer 5 17 for converting a linear motion of a drive 16 into a rotational motion of the locking members 14 is shown. 11.1 transducer 17 includes, generally, disposed adjacent a first side 12 of the through slot lavetisto the first frame member 21. Lavetisto 21 moves linearly in the planar direction, such as the machine direction. Lavetis 10 has a first rack 22 on its upper surface. Thus, rack 21 acts as a kind of wide rack. Correspondingly, the claws 14 are provided with a second serration 23 on the side of the pivot point 18, which corresponds to the serration 22 of the crotch 21. Thus, the linear movement of the crotch 21 through the crowns 22, 23 makes it possible to cause rotation The teeth 22, 23 are dimensioned such that even with a short linear movement the claw 14 is sufficiently rotated and the grippers 20 are removed from the recess 19 or turned into the recess 19. At the same time, the adjacent claws 14 of the lavetistol-20a 21 can be treated. an actuator actuator assembly (not shown) adapted to rotate symmetrical locking on both sides of the passage 12 12.1.

Fig. 3 shows another way of implementing linear actuation 16 of the pallet assembly 21. The drive may be, for example, an electric motor 16 having a linear screw coupled to the platform 21 or the like wide 05 on the shaft.

£ 30 i ^. Fig. 4 shows in principle the locking mechanism 10.1 of Fig. 2 in the actuator 13. The actuator 10.1 may be provided in section 05 in the actuator body 41 of the actuator 13.

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Figure 5 shows another way of implementing the locking mechanism 10.2 based on the rotating nail set 14. Now, linear 9 actuation 16 includes a fluid actuator, such as a hydraulic cylinder assembly 16 '. It can be used to rotate symmetrical locking 10.2 on both sides of the passage 12. Of course, as already mentioned above, the hyd-5 roller cylinders can also move the platen sets 21, but they would require some sort of synchronization.

The hydraulic cylinder assembly has a plurality of cylinders 16 'having a cylindrical portion having even reciprocating reciprocating piston rods 24.1, 24.2. The piston rods 24.1, 24.2 may be double-acting, so that they have a locking inward opening and closing outward movement of the frame 11. The piston rods 24.1, 24.2 ends of which are attached to articulated to the claws 14 with their respective attachment points 25. The attachment points 25 may be 15 to the nail 14 of the gripper 20 and the frame member or base plate 11.3, more generally, a through slot in connection with the first 12-side arranged nivelöintipistejärjestelyn 18 in between. Thus, with low force, the claws 14 can be turned and the cylinders 16 are also close to the opening. In addition, the piston rods 24.1, 24.2 may also have at their ends a transverse arm parallel to the nail row which is further secured to each nail 14. In this way, one cylinder 16 is capable of turning even more nails 14 on the same side of the locking. The locking mechanism 10.2 of Fig. 5 can be integrated into the T-drive device 13 of Fig. 4 on a similar principle to that of Fig. 20.

6a and 6b show a third embodiment symmetrically x £ 30 of the N · locking mechanism 10.3 acting on the body members 11.1, 11.2 of the frame structure 11.

Already, such a locking mechanism 10.3 is fitted in portions 11.1, 11.2 on both sides of the passage 12 horizontally 05 o.

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More specifically, in the case of the access device 13 according to Fig. 4, the locking mechanism 10.3 can be fitted at the junction of the housing bodies 13.1, 13.2, where the lead-through gap 12 is formed. Figures 10 6a and 6b show the point where the lead-through gap 12 in structure 10.3 is formed. The first frame beam 11.1, more generally, in connection with the first side 12 of the through slot is arranged in this case, the locking members 15 operate eccentric shafts 27, which are, for example, five in needle and rotatable. To rotate the eccentric shafts 27, the mechanism 10.3 again includes rotary means 28-30 based on the linear motion mechanism 16, the implementation of which will be explained a little later. Similarly, the second to lock the frame beam 11.2, more generally, in connection with the October 12 second side of the through slot is arranged in a row of fixed pins 26, 26 and the number of pins required may depend on the size of the clamping force and the available space.

For pins 26 and eccentric shafts, mechanism 10.3 also includes a locking plate 35. The locking plate 35 transmits the locking force. It is a straight plate provided with apertures 36 which fit into pins 26 and eccentric shafts 27, which are also in a row arrangement. Due to the rigidity of the pins 26, the locking plate 35 is locked in place when the eccentric shafts 27 are rotated, and 20 is also released when the eccentric shafts 27 are rotated in the opposite direction. According to one embodiment, the eccentricity of the eccentric shafts 27 may be arranged such that the clamping force becomes high even with a slight muscle force. In other words, the co-operation of the shafts 27 and the fixed pins 26 compresses the plate 35 into a tension state in its planar direction. Figures 7a and 7b show the clearance of pins 26 and shafts 27 in holes 36

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^ illustrate this extremely well. The locking plate 35 may be provided with hinges (not shown), so that it is pivotable to the side. If plate 35 is without hinges, it can be x £ 30 removed at unlocking and pushed back onto i ^ r pins 26 when locked again,

As shown in Fig. 6b, the backside of the mechanism 10.3 has a mechanism for controlling the amount of rotation of the eccentric shafts 27, which is adapted to control the rotation of the eccentric shafts 27 between the locking and unlocking positions. For this purpose, the eccentric shafts 27 are provided with a stop mechanism including, for example, an asymmetric stop wheel 38 and its stop 39 which are arranged relative to each other such that the stop 39 stops rotation of the shafts 27 when the counter 38 of the wheel 38 up to half a turn. With one spin, all locking contacts 27 are opened and closed. The construction is very simple and gives the mechanism 10.3 a surprisingly narrow appearance.

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As shown in Figure 8, this embodiment is also based on applying linear actuation 16 to move the locking members 15. In addition to the linear drive 16, here also a transducer 17 is applied, whereby the movement of the linear drive 16 is adapted to be converted into a rotational motion of the locking members 27.

The linear drive 16 transducer 17, i.e. the means for rotating the eccentric shafts 27, comprises gears 28 fitted to the ends of the shafts 27.

According to one embodiment, the operation of the eccentric shafts 27 can be centrally controlled by applying a rotational force to only one shaft 21 '. So is it possible to move the rack 29? with a single gear wheel 27 'fitted to the drive shaft, with

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The shaft 27 'has a stop 30 (Fig. 6a) for the torque tool, x £ 30 The drive shaft 21' has no locking effect. Now, the stop may be a nut 30, which is rotated with a spanner or a similar lever 'sf cd. Thus, the locking and unlocking of the mechanism 10.3 is fine

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Fig. 9 shows an alternative embodiment which does not use any linear motion mechanism but is based on 12 screw locking. Each shaft 27 is now provided with a nut 30 and is independently rotated.

Fig. 10 shows another possibility to perform the locking of the si-5 weather drive device 13. Again, the locking mechanism 10.4 can be fitted to the housing structure 13.1, 13.2 of the drive device 13 at their junction (Figure 4). Such a lightweight connecting piece 10.4 can be easily mounted on and removed from the side 13.1, 13.2 of the drive device 13 by tightening or loosening the screw connection 10 and lifting the slot 37 off at one end. Wedge-like nail surfaces can handle centering and pinching when tightening the joint. Correspondingly, the insertion device 13 may have projections in the housing structures 13.1, 13.2 that conform to the shape of the connecting piece 10.4, whereupon the piece 10.4 is immediately aligned.

As already mentioned, the above-mentioned mechanisms 10.1 to 10.3 may be applied, for example, in connection with the replacement of the tissue 20 by the insertion device 13. In this case, the automatic latches 10.1 to 10.3 of the frame 11 are gradually unlocked, after which the locking of the drive device 13 is opened, the penetration of the drive device 13 lifts the beam members 11.1, 11.2 and the slot 12 above the frame 11, the fabric 20 is driven through the drive device 13 and the opened frame 11. the penetration of the access device 25 13 is lowered and the body 11 and the access device 13 ^ are locked by a mechanism 10.1 to 10.3.

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The above-described invention has been mainly described in connection with the running-in device O) 00 13. The above locking mechanisms 10.1 - 10.3 x £ 30 can be mounted in any position (vertical, horizontal, oblique), but the retractor 13 itself is limited to horizontal applications.

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Although the invention has been described above by arranging a passageway 12 35 between the frame beams 11.1, 11.2 and the baseplate 11.3, one skilled in the art will appreciate that parts 41, 13.1, 13.2 of the penetration device 13 13 also form a kind of extension of the passageways 11.1, 11.2. Thus, the locking mechanisms 10.1 through 10.3 act on the frame structure 11 and the base plate 11.3 via the access device structures 13.1, 13.2, 41 5. In other words, the break-in device 13 in one part of the 13.1, 41 is arranged in connection with the first side 12 of the through slot 11.1, 11.3 and 13.2 of the second part, 41 is arranged in connection with the through slot 12 of the second half, 11.2, 11.1.

In addition to the arrangement, the invention also relates to an access device 13 which is adaptable to the body structure 11 of the fiber web machine and wherein it is adapted to form a passage 12 for passing fabric 20 through the body structure 11 of the fiber web machine. It is also possible to install such a device 13 in the machine after-15, for example in connection with machine rebuilds. The drive device 13 is integrated with a locking mechanism 10.1 to 10.3 which is adapted to act symmetrically on portions 41, 13.1, 13.2 of the device 13 on both sides of the lead-through 12.

It is to be understood that the foregoing description and the accompanying drawings are intended only to illustrate the present invention. Thus, the invention is not limited to the embodiments set forth above or as defined in the claims, but many variations and modifications of the invention which will be T- within the scope of the inventive concept defined in the appended claims will be apparent to those skilled in the art.

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Claims (12)

14 An arrangement in the body of a fiber web machine, comprising: - a frame structure (11) adapted to pass through gaps (12) for inserting fabric (20) through the frame structure (11), - an opening mechanism (13) for arranging gaps (12); -in device (13) having one portion (13.1, 41) is arranged in connection with the first through-slot (12) 10 side (11.1, 11.3) and the second part (13.2, 41) is arranged in connection with the second half (11.2, 11.1) through the gap (12) , locking mechanism (10.1 to 10.3) for integrating the frame structure (11) at the passage gaps (12), characterized in that the locking mechanism (10.1 to 10.3) is arranged to act symmetrically on portions (11.1, 11.2) of the frame structure (11) on both sides of the gasket gap (12). . Arrangement according to Claim 1, characterized in that the locking mechanism (10.1 to 10.3) comprises: - locking means (14, 15), - a linear drive (16) for moving the locking elements (14, 15), - a converter (17) with which a linear drive (16) ) movement is adapted to be converted into rotational movement of the locking members (14, 15). CM 3. An arrangement according to claim 2, characterized in that the CD ^ that the locking mechanism (10.1, 10.2) comprises in addition to x dl 30 - fitted in connection with the pivot point arrangement of the first through-slot (12) half (11.1, 11.3) ^ (18), - locking members pivot point plan (18) arranged and oo regarding adapted to rotate kynsistö (14) provided with na gripper (20), 15 - the through slot (12) of the second half (11.2, 11.1) ER adapted to teyteen indentation (19) in which kynsistön (14), tart-Tuja (20) adjustable, - linear actuation (16) for rotating the claws (14) with respect to the pivot point arrangement (18) such that the grippers (20) fitted to the recess (19) are adapted to lock outside the frame structure (11) and recess (19) to allow the lead-through gap (12) to be provided in the frame structure (11). 10 Arrangement according to Claim 2 or 3, characterized in that the linear drive (16) comprises a fluid actuator, such as a hydraulic cylinder assembly (16 ') / · which is arranged to rotate symmetrical locking (10.1) on both sides of the lead-through (12). 5. claimed in claim 2-4 arrangement, characterized in that the converter (17) of the drive (16) of the linear motion converting the locking means (14), the rotary movement is arranged in connection with lavetisto the through slot (12) in the first 20 side (11.1) (21) which is adapted to move linearly in planar direction, and which set (21) includes a first set of teeth (22) and a second set of teeth (23) disposed on the side of the pivot point arrangement (18) and whose linear movement of the set (21) is arranged through the teeth (22, 23) ^ (14) with respect to the pivot point arrangement (18). CM Arrangement according to Claim 4, characterized in that the hydraulic cylinder assembly (16 ') has opposite piston rods (24.1, 24.2), the ends of which are pivotally connected to the anchorage points (25) arranged on the claws (14). ) is adapted to the nail (14) of the first gripper (20) and oo through-slot (12) half (11.3) nivelöintipiste- arrangement (18). 35 16 7. An arrangement according to claim 1 or 2, characterized in that the locking mechanism (10.3) comprises in addition - in connection with the second side (11.2) of the through gap (12) between the first side (11.1) arranged in connection with the fixed pins (26), 5. the through slot (12) adapted to eccentric shafts (27) acting as locking members (15) adapted to pivot, - means (28 - 30) for rotating the eccentric shafts (27), - locking plate (35) provided with apertures (36) for pins (26) and eccentric shafts (27). ) and locked in place when rotating the eccentric shafts (27). Arrangement according to claim 7, characterized in that the eccentric shafts (27) are provided with a rotation control mechanism (38, 38 ', 39) adapted to control the rotation of the eccentric shafts (27) between the locking and unlocking positions. Arrangement according to one of Claims 2, 7 or 8, characterized in that the means for rotating the eccentric shafts (27) comprise gear wheels (28) fitted to the ends of the shafts (27) which are arranged to be rotated by a linear drive (16) fitted therewith. (29). Arrangement according to Claim 8 or 9, characterized in that the toothed rack (29) is adapted to be moved by a single gear geared to the shaft (21 '), wherein the shaft (27') has a stop (30) for the torque tool. > (MX £ 30 11. A device adaptable to the body structure (11) of a fiber web machine, wherein it is adapted to form a through-cd export slot (12) for introducing fabric (20) through the body structure (11) of the fiber web machine) -in device (13), the CM one part of which (13.1, 41) is arranged in the through slot (12) 35 of the first half (11.1, 11.3) for connection and the second part (13.2, 41) is arranged in the through slot (12) of the second half (11.2, 11.1) 17, characterized in that the access device (13) is provided with a locking mechanism (10.1 to 10.3) adapted to act symmetrically on the portions (41, 13.1, 13.2) of the access device (13) on both sides of the lead-in gap (12). 12. A fiber web machine, characterized in that it comprises an arrangement according to any one of claims 1 to 10. δ (M sj- o σ> (M X en CL h- · Sj- δ σ> o o (M 18