CN108858648B

CN108858648B - Stripe feed mechanism, stripe blanket device, press and method for guiding circulating stripe blanket

Info

Publication number: CN108858648B
Application number: CN201810442180.7A
Authority: CN
Inventors: F·海曼斯; W·赫格特
Original assignee: Dieffenbacher GmbH Maschinen und Anlagenbau
Current assignee: Dieffenbacher GmbH Maschinen und Anlagenbau
Priority date: 2017-05-11
Filing date: 2018-05-10
Publication date: 2022-10-21
Anticipated expiration: 2038-05-10
Also published as: DE102017110199B3; CN108858648A; CN210116001U

Abstract

The invention discloses a strip feeding mechanism for a circulating strip blanket of a continuous working press, a strip blanket device, a press and a method for guiding the strip blanket. The roller carpet has two spaced apart endless guide chains extending parallel to each other. The runner entry mechanism comprises at least one steering device for the runner blanket, around which steering axis the runner blanket can be steered. The steering axis extends perpendicular to the direction of travel of the runner blanket. At least one deflection device has at least one guide element which is radially outward with respect to the deflection axis and by means of which the roller blanket can be guided radially outward. The at least one radially outward guide element has at least one guide surface extending at least partially in a circumferential direction with respect to the steering axis. At least one turning device has no guide elements radially inward with respect to the turning axis, by means of which the roller blanket can be guided radially inward.

Description

Stripe feed mechanism, stripe blanket device, press and method for guiding circulating stripe blanket

Technical Field

The invention relates to a roller strip feed mechanism for a circulating roller strip blanket of a continuously operating press for producing press plates, in particular for producing material plates, such as chipboards, fiberboards, rice straw boards and particleboards, and plastic plates, from wood and/or other recycled agricultural products, wherein the roller strip blanket has two spaced-apart circulating guide chains extending parallel to one another, between which a plurality of roller strips extend perpendicularly to the guide chains, wherein the roller strip feed mechanism comprises at least one deflecting device for the roller strip blanket, which has an imaginary deflecting axis about which the roller strip blanket can be deflected, wherein the deflecting axis extends perpendicularly to the direction of travel of the roller strip blanket, wherein the at least one deflecting device has at least one guide element which is radially outward with respect to the deflecting axis and by means of which the roller strip blanket can be guided radially outward, and the at least one guide element has at least one guide surface which extends at least partially in the circumferential direction with respect to the deflecting axis.

The invention also relates to a roll blanket arrangement of a continuously operating press for producing press plates, in particular for producing material boards, such as chipboards, fiberboards, rice straw boards and particleboards and plastic boards, from wood and/or other recycled agricultural products, comprising at least one endless roll blanket having two spaced apart endless guide chains extending parallel to one another, between which a plurality of roll strips extend perpendicularly to the guide chains, and at least one roll entry means by means of which at least one roll blanket is guided, wherein the roll entry means comprises a turning device for a roll blanket having an imaginary turning axis about which the roll blanket is turned and which extends perpendicularly to the running direction of the roll blanket, and wherein the at least one turning device has at least one radially outward guide element by means of which the roll blanket is guided radially outward with respect to the turning axis, wherein the at least one radially outward guide element has at least one guide surface which extends at least partially in the circumferential direction with respect to the turning axis.

The invention further relates to a continuously operating press for producing press plates, in particular for producing material plates, such as chipboards, fibreboards, strawboard and particleboard, from wood and/or other recycled agricultural products, comprising at least one revolving endless steel belt for transporting the press material and the press plates, at least one pressing device for pressing against the at least one steel belt, and at least one roller blanket device, wherein the roller blanket device comprises at least one endless roller blanket having two spaced endless guide chains extending parallel to one another, between which a plurality of rollers extend perpendicularly to the guide chains, and at least one roller entry means, at least one runner blanket is guided by means of the at least one runner entry mechanism, wherein the runner entry mechanism comprises at least one turning device for the runner blanket, which turning device has an imaginary turning axis about which the runner blanket is turned and which extends perpendicular to the running direction of the runner blanket, the at least one turning device having at least one radially outward guiding element, by means of which the runner blanket is guided radially outward with respect to the turning axis, wherein the at least one radially outward guiding element has at least one guiding surface, which extends at least partially in circumferential direction with respect to the turning axis, wherein the runner blanket is guided between at least one steel strip and at least one pressing device.

The invention further relates to a method for guiding a circulating runner blanket having two spaced-apart, parallel-running, circulating guide chains by means of a runner entry mechanism of a continuously operating press for producing press plates, in particular for producing material plates, such as chipboards, fiberboards, rice straw boards and particleboards, and plastic plates, from wood and/or other recycled agricultural products, wherein the runner blanket is deflected by means of at least one deflection device about at least one imaginary deflection axis which runs perpendicular to the direction of travel of the runner blanket, and the runner blanket is guided radially outward at least in sections in the circumferential direction about the at least one deflection axis by means of at least one radially outward guide element.

Background

A continuously operating press for pressing a press bed into a press plate is known from EP 1 726 430 B1, which press has a lower press part and an upper press part, a press steel belt revolving in a cycle in the lower press part and the upper press part, and an inlet. Heatable press plates are arranged in the lower and upper press sections. A heatable intake plate protruding on the intake side is connected to the pressure plate with the inlet formed. The press steel strip is supported with the intermediary of roller bars at the press plate and the entry plate, which are guided via a deflection rail by means of upper and lower roller bar deflection devices and are introduced between the press steel strip and the entry plate in the entry region. The roller bar deflection device has a deflection wheel and a roller bar guide wheel in the entry region. The roller rods are guided with rod-compensated play by means of a roller rod chain which is steered via a steering wheel and a roller rod guide wheel.

Disclosure of Invention

The object of the present invention is to provide a roller feed device, a roller blanket arrangement, a continuously operating press and a method of the aforementioned type, in which vibrations of the roller occurring in the event of a turn, in particular due to centrifugal forces, can be reduced and preferably prevented. In particular, component costs, installation costs, maintenance costs and/or wear should be kept as low as possible.

According to the invention, this object is achieved for a roller bar entry mechanism in that: at least one of the turning devices has no guide element radially inward with respect to the turning axis, by means of which the roller blanket can be guided radially inward. According to the invention, the guiding of the clothing strip takes place exclusively radially outwards in the region of the at least one deflecting device. By a suitable configuration of the at least one radially outward guide element, the roller carpet, which may retain its original straight running direction due to centrifugal forces, can be pressed against the at least one guide surface of the at least one radially outward guide element and be correspondingly deflected by means of the guide surface. In this way, the roller carpet can be guided over a desired path of travel, wherein the generation of vibrations can be prevented by means of the at least one radially outward guiding element. In this way, the respective guide element facing radially inward can be intentionally omitted.

Advantageously, the guide chain may run in respective axially spaced regions of the at least one steering device.

Advantageously, the roller carpet can be guided radially outwards with respect to the turning axis at least over a partial circumference with respect to the turning axis by means of at least one radially outwards guiding element. In this way, the runner blanket may be guided directly by means of the at least one radially outward guiding element.

In an advantageous embodiment, the at least one radially outward guiding element of the at least one turning device may be arranged in axially opposite areas where the guide chains of the roller carpet can run, so that the rollers of the roller carpet can be guided radially outward. Due to the centrifugal force, the roller bars are pressed radially outwards in the turning region about the turning axis. Since the rollers are each fixed at their ends axially opposite one another with respect to the respective longitudinal axis at the respective guide chain, the amplitude of the vibrations that can occur without the respective guide is greatest at the center of the rollers. The invention therefore provides for the rollers between the regions of the guide chain to be guided correspondingly radially outwards with respect to the steering axis and to be supported in this way. Advantageously, at least one radially outward guide element is arranged between the regions of the guide chain in such a way that it constitutes a sufficient support for the roller strip in the turning region. The roller strip can therefore be guided by means of at least one radially outward guide element in order to prevent vibrations, in particular due to centrifugal forces. Thus, support can be made at the roller strip. Furthermore, the mechanical load of the connection between the roller strip and the guide chain, in particular of the so-called bending bar, can be reduced.

In a further advantageous embodiment, at least one radially outward guide element of at least one deflection device can be arranged in the region in which the guide chain can run in such a way that it can guide the respective guide chain radially outward. In this way, the guide chain is supported and guided radially outward with respect to the steering axis. Therefore, the mechanical load of the connection (piece) between the roller strip and the guide chain, particularly the mechanical load of the bending bar, can be further reduced.

In a further advantageous embodiment, the angle between an imaginary lead-in tangential plane to at least one guide face of the at least one radially outward guide element and an imaginary lead-out tangential plane to the at least one guide face in a plane perpendicular to the turning axis is at least about 90 °, in particular between 90 ° and 120 °, and/or the angle between two imaginary connecting planes, one of which is the connecting plane between the at least one turning device and the turning device in front with respect to the path of travel of the roller carpet, and the other is the connecting plane between the at least one turning device and the turning device in rear, is at least about 90 °, in particular between 90 ° and 120 °. Here, the entry tangential plane may be located on an entry side of the at least one radially outward guiding element for the clothing strip, and the exit tangential plane may be located on an exit side. In this way, the angle of accommodation about the steering axis can therefore be limited to a maximum of 270 °. The runner blanket therefore does not experience a reversal of the direction of travel opposite to its original direction of travel by means of the at least one guide surface. Thereby, a higher running speed for the runner blanket can be achieved, which is larger than 1m/s, for example 1.5m/s. Furthermore, the subsequent deflecting device is arranged behind the deflecting device, in particular obliquely above or obliquely below it, as seen in the original direction of travel of the clothing, on the introduction side of the at least one first deflecting device. In this way, the runner blanket may be constructed generally shorter.

Advantageously, the two imaginary parallel planes can each be spaced apart from one another by means of one of the steering axes of the two steering devices arranged one behind the other in the running direction of the clothing, such that the plane of the steering device located in front is arranged in front of the steering device located behind, viewed in the running direction on the introduction side of the steering device located in front, wherein the imaginary planes run perpendicularly, in particular spatially, to the running direction. The spacing between the two parallel planes may be greater than the corresponding spacing between the steering axis and the corresponding guide surface of the steering device. In this way, a reversal of the running direction of the runner blanket can also be avoided when the two diverting means form an S-curve of the runner blanket.

In the sense of the present invention, a tangential plane of introduction as a plane to the guide surface refers to an imaginary one which extends tangentially to the guide surface on the side of introduction, i.e. on the side of the area where the runner blanket is introduced into the corresponding radially outward guide element. The tangential plane is introduced here to extend substantially parallel to the respective steering axis of the steering device concerned. Correspondingly, the leading tangential plane refers to an imaginary tangential plane which extends tangentially to the guide surface on the leading side, i.e. on the side of the roll bar blanket which leaves the area of the corresponding radially outward guide element.

In the sense of the present invention, an imaginary connecting plane between two deflecting devices refers to the plane between the lead-out side of the clothing of the preceding deflecting device and the lead-in side of the clothing of the following deflecting device, in which plane the path of travel of the optimally tensioned clothing extends. The connection plane generally extends in a further direction, which is approximately parallel to the steering axis of the steering device.

In a further advantageous embodiment, the imaginary lead-in tangential plane is inclined in a plane perpendicular to the turning axis with respect to the imaginary connecting plane and/or with respect to the spatial horizontal plane away from the turning axis at an angle of between approximately-12 ° and +5 °, in particular between-12 ° and 0 °, wherein the imaginary lead-in tangential plane extends tangentially to the at least one guide surface of the at least one radially outward guide element, and the at least one turning device extends with respect to the imaginary connecting plane between the preceding turning devices with respect to the path of travel of the runner blanket. In this way, the at least one runner blanket can be gently introduced into the introduction area of the at least one guide surface and guided along the guide surface.

Advantageously, the at least one deflecting device extends horizontally in space with an imaginary connecting plane between the preceding deflecting devices with respect to the path of travel of the clothing strip. In this case, the angles are uniform.

In a further advantageous embodiment, the curvature of at least one guide surface of at least one radially outward guide element decreases, in particular continuously decreases, at least in a section, before the lead-out area of the at least one guide surface, as seen in the running direction of the clothing. In this way, the roll-strip blanket may be gently released from the at least one guide surface. Here, the curvature continuously decreases. Alternatively, the guide surface may also be configured in a stepped manner such that its curvature correspondingly discontinuously decreases.

In a further advantageous embodiment, an imaginary leading tangential plane to the at least one guide surface of the at least one radially outward guide element and/or an imaginary connecting plane between the at least one deflecting means and the deflecting means that is rearward with respect to the path of travel of the clothing strip is inclined in a plane perpendicular to the deflecting axis at an angle of at least 0 °, in particular between 0 ° and 30 °, away from the deflecting axis, relative to a spatially perpendicular plane having the deflecting axis. In this way, the following deflecting device is arranged, with reference to the original direction of travel of the clothing, behind the insertion region of the at least one preceding deflecting device, in particular obliquely above or obliquely below the at least one preceding deflecting device. Reversal of the direction of travel of the runner blanket can thus be avoided. Thus, the necessary length of the runner blanket may be reduced.

In another advantageous embodiment, the at least one guide surface of the at least one radially outward guide element is spatially directed upward, seen in the running direction of the clothing strip. In this way, the runner blanket is additionally pressed against the guide face of the at least one radially outward guide element due to gravity. In this way, the guiding of the runner blanket and/or the damping of the runner can be further improved.

In a further advantageous embodiment, the roller entry mechanism can have at least two, in particular three, similar or different deflection devices, which are arranged one after the other with respect to the path of travel of the roller blanket. In this way, the turning and guiding of the seam blanket can be better adapted to the structure of the press.

Advantageously, the axial distance about the steering axis between the closest areas in which the at least one guide element and one of the guide chains can run is greater than about 1/7 of the axial distance between two areas of the guide chain. It has been shown that by specifically selecting the axial position of at least one guide element such that the minimum distance is about 1/7 of the axial distance between two regions of the guide chain, it is possible to eliminate the radially inward guide element as an abutment. In this way, the component costs, the installation costs and the wear of the components involved can be reduced accordingly. In particular, the fixing of the rollers at the guide chain can be mechanically relieved and thus protected.

Advantageously, the roller bars can be connected at their ends to the respective guide chain by means of so-called bending rods in a manner rotatably and/or axially displaceably supported about their longitudinal axis. In this way, the roller can rotate and/or move axially. The invention makes it possible to mechanically relieve the load on the bending rod and thus to protect it.

Advantageously, the at least one radially outward guiding element may extend beyond an area around the turning apex of the runner blanket. In this way, the roller carpet is better guided by means of the at least one radially outward guiding element when changing direction during turning. The at least one radially outward guide element can thus better accommodate the centrifugal forces acting on the roller blanket during turning and prevent the roller from starting to vibrate, in particular to form vibration waves on the roller. The clothing strip can be guided more gently into and out of this deflection. The forces acting on the runner blanket and the at least one guide element may be reduced overall. Thus, wear and the risk of failure can be avoided.

In the sense of the invention, the apex of the deflection is the apex cross-sectional axis of the corresponding guide surface, which is sectioned by an imaginary radial plane, wherein the radial plane contains on the one hand the deflection axis and on the other hand the cross-sectional axis of the imaginary connection plane of the deflection device on the entry side and the imaginary connection plane of the deflection device on the exit side.

Advantageously, it is possible to dispense with the guidance of the runner in the direction of travel of the runner blanket in front of or behind the at least one deflecting device on the straight section. In this way, component costs can be further reduced.

Advantageously, the at least one radially outward guide element may be a sliding guide element. In this way, the corresponding section of the roller carpet, in particular the respective rollers and/or the at least one guide chain, can slide along the at least one guide element.

Advantageously, the at least one guide surface of the at least one radially outward guide element may enclose a circumference of the steering axis of about 1/5 to 1/2. In this way, a guidance of the runner blanket over a correspondingly large angle of accommodation can be achieved.

Advantageously, the axial distance between the at least one radially outward guide element and the closest region of one of the guide chains with respect to the steering axis is about 1/4 to 1/2, in particular about 1/3, of the distance between the regions of the guide chain. Alternatively or additionally, the distance between the at least one radially outward guide element and the axial midpoint between the regions of the guide chain may be about 1/4 to 1/7, in particular about 1/5 to 1/6, of the axial distance between the regions of the guide chain. In this way, a more uniform bearing is performed over the length of the roller strip. At the same time, the number of radially outward guide elements can be reduced.

Advantageously, the axial distance between the regions of the guide chain may be between 2 and 4 meters, in particular between 2.5 and 3.5 meters. Correspondingly, the length of the roller bars is shorter than the distance between the areas of the guide chains, i.e. the distance between the guide chains. In this way, a correspondingly wider runner blanket may be employed.

Advantageously, the at least one deflection device can have 1 to 5, in particular one or two, radially outward guide elements. In this way, the roller strip can be guided and supported in dependence on the axial distance between the regions of the guide chain, i.e. in dependence on the length of the roller strip, so that no vibrations are generated.

The regions of the guide chain (i.e. depending on the length of the rollers) are guided and supported so that no vibrations occur.

Advantageously, in the case of an axial distance of up to about 2.7 meters between the regions of the guide chain, a single radially outward guide element is provided. It has been shown that this is sufficient in order to at least reduce, in particular suppress, the vibration behavior of the roller strip.

Advantageously, in the case of a single radially outward guide element, this guide element is arranged axially centrally between the regions of the guide chain. Thus, the rollers can be supported at a minimum component cost.

Advantageously, the two radially outward guide elements can be arranged axially spaced apart from one another. In this way, wear may be reduced. Furthermore, redundancy with respect to the guiding elements can also be achieved.

Advantageously, in case the distance between the regions of the guide chain amounts to about 2.7 meters, the two radially outward guide elements may be arranged at a distance of about 0.5 meters from the axial center between the regions of the guide chain. In this way, wear can be further reduced and redundancy with respect to the guide elements can be achieved.

Advantageously, in case the axial distance between the regions of the guide chain with respect to the steering axis is larger than 2.7 meters, the two radially inward guide elements may each be arranged at a distance of about 1/3 of the axial distance between the regions of the guide chain to the corresponding closest region of the guide chain. In this way, even with longer runners, i.e. wider runner blankets, a radially outward guidance which is effective in particular with regard to vibration damping can be ensured.

Advantageously, the at least two diverting means may be arranged one after the other, seen in the direction of travel of the runner blanket, such that the respective radially outward guiding elements can act on different sides of the runner blanket. Alternatively or additionally, the at least two turning devices may be arranged such that the corresponding radially outward guiding elements are able to act on the same side of the clothing strip.

Advantageously, at least two turning devices may be arranged such that at least one radially outward guiding element of one of the turning devices may act on the inner side of the runner blanket, while at least one radially outward guiding element of a following turning device in the running path of the runner blanket may act on the outer side of the runner blanket. Depending on the previous guidance of the runner blanket, in particular by means of the runner outlet mechanism of the runner blanket arrangement in front of the runner inlet mechanism, alternatively at least one radially outward guiding element of the preceding deflecting device in the direction of travel may act on the outer side of the runner blanket, and at least one radially outward guiding element of the following deflecting device may act on the inner side of the runner blanket.

Alternatively or additionally, the at least two turning devices may be arranged such that the corresponding radially outward guiding elements of the two turning devices may act on the inner side of the runner blanket or the corresponding radially outward guiding elements of the two turning devices may act on the outer side of the runner blanket. In this way, the travel of the runner blanket in the turn may be reduced as a whole, and thus a correspondingly shorter runner blanket may be employed. In case of a shorter runner blanket, material of the guide chain, the runners and the bending bar can be saved.

Advantageously, the at least two turning devices may be arranged such that the runner blanket can be guided in an S-shaped curve. In this way, the corresponding angle of accommodation may be increased. Better guidance can be achieved within the range of the angle of inclusion.

Advantageously, the axial width of the at least one radially outward guide element with respect to the steering axis may be approximately between 35mm and 45mm, in particular 40mm. In this way, the at least one radially outward guiding element may be configured to be material-saving, yet ensure sufficient guiding on the radially outward peripheral side of the roller carpet.

Advantageously, the roller bar entry mechanism may be arranged above or below the space of the inlet of the press.

Advantageously, a roller entry mechanism is arranged above and below the space of the inlet, respectively. The lower roll-bar blanket may be directed to the inlet of the press by means of a lower roll-bar entry mechanism. The upper sliver blanket can be directed to the inlet of the press by means of the upper sliver entry mechanism.

According to the invention, this task is solved for a runner blanket arrangement by: at least one of the turning devices has no guide elements radially inward with respect to the turning axis, by means of which the roller blanket can be guided radially inward.

According to the invention, the object is also achieved for a press in that: at least one of the turning devices has no guide elements radially inward with respect to the turning axis, by means of which the roller blanket can be guided radially inward.

Furthermore, according to the invention, the object is achieved for a method in that: the runner blanket is not directed radially inwardly with respect to the steering axis.

Incidentally, the features and advantages shown in connection with the roll bar entry mechanism according to the invention, the roll bar blanket arrangement according to the invention, the press according to the invention, and the method according to the invention and their respective advantageous embodiments apply mutatis mutandis, and vice versa. Of course, the individual features and advantages can be combined with one another, whereby further advantageous effects can be achieved which exceed the sum of the individual effects.

Drawings

Further advantages, features and details of the invention are given by the following description, in which embodiments of the invention are further explained with reference to the drawings. The features disclosed in the figures, the description and the claims are suitable for a person skilled in the art to be considered individually and can be summarized meaningfully in other combinations. The figures show schematically:

fig. 1 is a longitudinal section through a continuously operating press for producing press platens in the region of a lower roller bar entry device;

FIG. 2 is an isometric view of the lower roller entry mechanism of FIG. 1;

FIG. 3 is a lateral side view of the lower roller entry mechanism of FIGS. 1 and 2;

FIG. 4 is an isometric view of an upper roll bar entry mechanism of a continuous action press;

FIG. 5 is a side view of the upper roller entry mechanism of FIG. 4;

fig. 6 is a lateral side view of the upper roll bar entry mechanism of fig. 4 and 5.

Like components are denoted by like reference numerals in the drawings.

Detailed Description

Fig. 1 shows a longitudinal section through a continuously operating press 10 for producing press plates, for example material plates such as particle-, fiber-, straw-and particle-board plates and plastic plates, for example from wood and/or other recycled agricultural products, in the region of a lower roller bar entry 12. The lower roll bar entry mechanism 12 is located spatially below the entrance to the press 10. The components of the roller strip feeding mechanism 12 are shown in different perspective and detail views in fig. 2 to 3. Fig. 4 to 6 show the upper roll bar entry mechanism 312 of the press 10. The upper roll bar entry mechanism 312 is located above the inlet of the press 10.

For better orientation, the corresponding axes of an orthogonal X/Y/Z coordinate system are shown in FIGS. 1 through 6. Here, the Z axis extends vertically in space, while the X and Y axes extend horizontally in space.

The press 10 comprises a lower endless steel belt 14 which is diverted via a lower diverting drum 16 on the inlet side and which is diverted and driven via a lower drive drum on the outlet side (not shown in the drawing) with respect to the press 10. Between the upper section of the steel strip 14 and the lower section of the upper circulating steel strip, not shown, a press 18 is conveyed through the press 10 in the production direction 20 and pressed into a press plate.

In the area surrounded by the lower steel belt 14, a lower roller carpet arrangement 24 is arranged. The lower roll bar blanket arrangement 24 comprises a lower cycle bar blanket 26, which lower cycle bar blanket 26 is turned by means of a lower roll bar entry means 12 on the inlet side of the press 10 and by means of a lower roll bar take-off means, not shown, on the outlet side of the press 10, respectively.

The roller blanket 26 includes two endless guide chains 28 that extend spaced apart and parallel to each other. Between the guide chains 28, a plurality of rollers 30 extend perpendicular to the guide chains 28. The roller bars 30 can have an axial length about their respective longitudinal axes of greater than 3 meters, for example 3.35 meters. Here, the roller strip 30 illustratively has a longitudinal length of 2.65 meters about its corresponding longitudinal axis. The rollers 30 are each connected at their ends to the guide chain 28 in a rotatable and axially displaceable manner about their respective longitudinal axis via so-called bending rods, which are not shown in the drawings.

The upper section of roll blanket 26 abuts the spatially lower side of the upper section of steel strip 14. A pressing device in the form of a press plate 32 is located on the lower side of the upper section of the lower runner blanket 26 facing away from the upper section of the steel strip 14. The rolling bars 30 are inserted together between the pressing plates 32 and the steel strips 14, respectively. The steering of strip blanket 26 is to rollingly support steel strip 14 relative to platen 32.

Above the upper section of the steel strip 14 is arranged an upper binding blanket arrangement 324 shown in fig. 4 to 6. The lower section of upper strip blanket 326 abuts the upper side of the lower section of the upper steel strip. The upper platen is located on the upper side of the lower section of upper runner blanket 326. Here, the rolling bars are also inserted together between the upper platen and the upper steel belt, respectively. The turn of the strip blanket 326 is to rollingly support the upper steel belt 14 relative to the upper platen.

The lower roller entry mechanism 12 generally comprises three

deflection devices

36, 136 and 236, which are arranged one after the other, as seen in the running direction 42 of the roller blanket 26, and which present a running path 44 of the roller blanket 26 in the inlet region of the press 10. For a better understanding, the travel path 44 is represented in the figure by a corresponding curve.

The first deflection device 36 is located in the spatially lower region of the roller entry mechanism 12. By means of this first steering device, the lower section of the sliver blanket 26 coming out of the non-illustrated sliver take-off mechanism is steered spatially upwards about an imaginary first steering axis 46. The first steering axis 46 extends perpendicularly to the direction of travel 42 and parallel to the roller strip 30, in the exemplary embodiment shown parallel to the Y axis, i.e., horizontally in space.

The first steering device 36 generally comprises four radially outward guide elements 48. The radially outward guide element is configured as a sliding guide element. The longitudinal width of the radially outward guide elements 48 with respect to the first steering axis 46 is 40mm each. Radially outward guide element 48 guides roller blanket 26 radially outward about first steering axis 46. The radially outward guide element 48 here acts on the outside of the roller blanket 26. The outside of the strip blanket 26 is the side that also abuts the upper section of steel strip 14. The inner side of the roll blanket 26 is then correspondingly the side on which the platen 32 acts.

Two of the radially outward guide elements 48 are arranged, as shown by way of example in fig. 3, between two regions 50 which are axially opposite one another with respect to the first steering axis 46. One of the guide chains 28 extends in the region 50. By means of the two axially outer, radially outward guide elements 48, the guide chains 28 are each guided radially outward with respect to the steering axis 46.

Between these two axially outer, radially outward guide elements 48, two further axially inner, radially outward guide elements 48 are arranged. The axially inner, radially outer guide elements 48 each have an axial distance 52 of 0.5 m from the axial center between the two regions 50.

The distance 54 between the regions 50 of the guide chains 28 corresponds to the distance between the guide chains 28. The distance 54 corresponds to the axial length of the roller strip 30 used, for example, greater than about 2.65 meters.

The axial distance 56 about the first steering axis 46 of the axially inner, radially outward guide element 48 to the adjacent region 50 of the guide chain 28 is less than about 1/3 of the distance 54 between the regions 50. The two axially inner, radially outward guide elements 48 are also arranged in such a way that they can act directly on the rollers 30, guide them radially outward and avoid the formation of vibrations.

Each radially outward guiding element 48 has a guiding surface 58 for a corresponding part of the runner blanket 26. The guide surface 58 is located on a side of the corresponding radially outward guide element 48 radially facing the first steering axis 46. The guide surfaces 58 each extend around a portion of the circumference of the first steering axis 46. The guide surface 58 is mainly located behind the first turning axis 46 in the direction of travel 42 of the lower section of the roll bar blanket 26. The shape of the guide surfaces 58 of the radially outward guide elements 48 is the same in the embodiment shown and is described below in terms of one of the guide surfaces 58.

In a plane perpendicular to the first steering axis 46, the angle 60 between an imaginary lead-in tangential plane 62 to the guide surface 58 and an imaginary lead-out tangential plane 64 to the guide surface 58 is, for example, approximately 115 °.

In the sense of the present invention, a tangential plane of introduction as a plane to the guide surface refers to an imaginary one which extends tangentially to the guide surface on the side of introduction, i.e. on the side of the area where the runner blanket is introduced into the corresponding radially outward guide element. Correspondingly, the lead-out tangential plane refers to an imaginary tangential plane that extends tangentially to the guide surface on the lead-out side, i.e. on the side of the roll bar blanket that leaves the area of the corresponding radially outward guide element. The entry tangential plane and the exit tangential plane each extend in a direction approximately parallel to the steering axis of the steering device.

Furthermore, the entry tangential plane 62 is inclined in a plane perpendicular to the first turning axis 46 by an angle of, for example, approximately-8 ° relative to an imaginary connecting plane 68 between the first turning device 36 and the last turning device, not shown, of the preceding, lower roller exit with respect to the path of travel 44.

In the sense of the present invention, an imaginary connecting plane between two deflecting devices refers to the plane between the outlet side of the clothing of the preceding deflecting device and the inlet side of the clothing of the following deflecting device, in which plane the path of travel of the optimally tensioned, i.e. linearly extended, clothing extends. The connection plane extends in a direction substantially parallel to the steering axis of the steering device.

The connecting plane 68 extends, for example, parallel to a horizontal line in space, i.e. parallel to the XY plane, so that the lead-in tangential plane 62 is inclined at an angle 66 relative to the horizontal line. The exit tangential plane 64 is therefore inclined at a reduced angle relative to the angle 60 relative to the connection plane 68 on the entry side.

The corresponding curvature of the guide surface 58 of the radially outward guide element 48 decreases continuously, as viewed in the direction of travel 42, behind the deflection apex 70. The apex 70 is the region of maximum steering. Behind the apex 70, the curvature gradually transitions into the outgoing tangential plane 64.

The apex of the deflection in the sense of the invention corresponds to the apex cross-sectional axis of the corresponding guide surface, taken by an imaginary radial plane. The radial plane contains, on the one hand, the steering axis and, on the other hand, the cross-sectional axis of the connection plane of the entry side to the connection plane of the exit side of the steering device.

The outgoing tangential plane 64 coincides with the connection plane 72 in the embodiment shown. The outgoing tangential plane 64 and the connecting plane 72 are inclined away from the first steering axis 46 by an angle 74 of, for example, about 15 deg. in a plane perpendicular to the first steering axis 46 with respect to a plane parallel to the YZ plane, i.e., a spatially perpendicular 76. In this way, the direction of travel 42 of the striped blanket 26 is not opposite to the first turning device 36.

The first steering device 36 furthermore has no guide elements which are radially inward with respect to the first steering axis 46, by means of which the roller blanket 26 can be guided radially inward with respect to the steering axis 46.

The second steering device 136 is spatially arranged obliquely above the first steering device 36. The second turning device has an imaginary second turning axis 146 about which the roll blanket 26 is turned substantially in the direction of the turning cylinder 16, substantially in the X-axis direction. The second steering axis 146 extends parallel to the first steering axis 46, i.e. parallel to the Y-axis.

The second steering device 136 comprises a steering shaft 178, which is shown in fig. 2 to 3 by way of example, and which extends coaxially with the second steering axis 146. The chain wheels 180 are respectively disposed on the ends of the steering shaft 178 that are axially opposite to each other. A total of six roller wheels 182 are arranged between the chaining wheels 180, for example, at an axially uniform distance from one another about the second steering axis 146. The roller wheels 182 each form a guide element for the rollers 30 radially inward with respect to the second steering axis 146. The chain wheels 180 respectively constitute radially inward guiding elements for guiding the chain 28. Chain wheel 180 and roller wheel 182 act on the outside of roller blanket 26.

Radially outside the roller blanket 26 with respect to the second steering axis 146, two radially outward guide elements 148 are arranged such that they are neither aligned with the roller wheel 182 nor the chaining wheel 180, viewed radially with respect to the steering axis 146. The radially outward guide elements 148 each have an axial width of 40mm with respect to the second steering axis 146.

Each radially outward guide element 148 has a guide surface 158, along which guide surface 158 the roller strip 30 is guided radially outward with respect to the second turning axis 146. The guide surfaces 158 are each partially circumferential around the second steering axis 146 by way of example greater than a quarter of a circumference.

The radially outward guide elements 148 are each arranged at a distance 52, i.e. 0.5 meters, from the axial center between corresponding regions 150 of the guide chain 28. In the case of the second deflection device 136, the region 150 of the guide chain 28 is defined by the chain wheel 180. The radially outward guide elements 148 are located at a distance from the regions 150 that is approximately less than one third of the axial distance between the regions 150. The distance between the areas 150 corresponds to the distance 54 between the areas 50 of the first steering device 36.

Radially outward guide elements 148 act on the inner side of the roll blanket 26. The radially outward guiding element 48 of the first diverting arrangement 36 and the radially outward guiding element 148 of the second diverting arrangement 136 thus act on different sides of the clothing 26. With the help of the

turning devices

36 and 136, the roll-strip blanket 26 is guided in an S-shaped curve.

The shape of the guide surface 158 of the radially outward guide element 148 is the same in the illustrated embodiment and is described below with reference to the guide surface 158. The guide surface 158 surrounds the steering apex 170 of the second steering device 136 from both sides, i.e. from the front and from the rear, as viewed in the direction of travel 42.

The angle 160 between an imaginary incoming tangential plane 162 to the guide surface 158 and an imaginary outgoing tangential plane 164 to the guide surface 158 is about 90 deg..

The angle 166 between the incoming tangential plane 162 and the connecting plane 72 between the first turning device 36 and the second turning device 136 is about-6.

The angle 174 between the outgoing tangential plane 164 and a plane parallel to the YZ plane, i.e. a spatially perpendicular plane 176, is for example about 70 °. In the exemplary embodiment shown, the exit tangential plane 164 coincides with an imaginary connecting plane 172 between the second deflection device 136 and the third deflection device 236. Accordingly, the angle between the connecting plane 172 and the vertical plane 176 is likewise correspondingly approximately 70 °.

The distance 84 between the vertical plane 76 with the steering axis 46 of the first steering device 36 and the vertical plane 176 with the steering axis 146 of the second steering device 136 is such that the vertical plane 76 of the front steering device 36 is arranged in front of the rear steering device 136, as seen in the direction of travel 42 on the entry side thereof. The spacing 84 between the vertical plane 76 and the vertical plane 176 is correspondingly greater than the spacing between the first steering axis 46 and the guide surface 58 of the first steering device 36, and greater than the spacing between the second steering axis 146 and the guide surface 158 of the second steering device 136.

The third steering device 236 has a steering shaft 278 that is coaxial with the third steering axis 246. The third steering axis 246 extends generally parallel to the first and second steering axes 46, 146. The third steering axis 246 lies on the side of the spatially vertical plane 176 facing away from the first steering axis 46. In order to adjust and/or operate the lower roll bar blanket arrangement 24, it may be required that the first steering axis 46, the second steering axis 146 and/or the third steering axis 246 are inclined such that they are no longer exactly parallel to each other and/or to the Y-axis, i.e. extend horizontally in space.

Two chain wheels 280 are arranged on the ends of the steering shaft 278 that are axially opposite to each other. The chain wheel 280 defines an area 250 in which the guide chain 28 travels. The axial distance of the regions 250 corresponds to the distance 54 between the regions 50 of the first steering device 36.

A total of six roller wheels 282 in the form of toothed wheels are arranged between the chain wheels 280. Like the roller wheels 182 of the second turning device 136, the roller wheels 282 are arranged at equal distances from each other and from the chain wheel 280. The roller bars 30 are positioned and held between the teeth of the roller wheel 282 during the guiding. The chain wheel 280 and the roller wheel 282 each form a radially inward guide element, by means of which the roller blanket 26 is guided radially inward with respect to the steering axis 246.

Furthermore, the third deflection device 236 has a total of four radially outward guide elements 248. The radially outward guide elements 248 each have a guide surface 258 which, by way of example, encompasses more than half of the circumference in the circumferential direction around the third steering axis 246. A radially outward guide element 248 acts on the outside of the strip blanket 26. The roll blanket 26 is thus guided in a general S-shape between the second turning device 136 and the third turning device 236.

The radially outward guide elements 248 are arranged offset with respect to the chain wheel 280 and the roller wheel 282 as seen in fig. 3 in the X-axis direction. In a direction axial with respect to the third steering axis 246, the distance between the axially outer, radially outward guide element 248 and the corresponding adjacent region 250 is greater than 1/7 of the spacing 54 between the regions 250.

The distance 118 between the outlet side of the radially outward guide element 148 of the second deflection device 136 and the inlet side of the radially outward guide element 248 of the third deflection device 236 is, for example, 100 mm.

Furthermore, between the second turning device 136 and the third turning device 236, four straight guide elements 120 are arranged, which act on the outer side of the clothing 26. The straight guide element 120 extends, as shown in the side view in fig. 1, from the exit-side end of the radially outward guide element 148 of the second deflection device 136 (overlapping it) to the entry-side open end of the radially outward guide element 248 of the third deflection device 236 (also overlapping it). The straight guide elements 120 are arranged offset in the X-axis direction with respect to the radially outward guide

elements

148 and 248 and the

roller wheels

182 and 282, respectively, as shown in fig. 3.

As press 10 operates, roller blanket 26 is driven in a direction of travel 42. The roll blanket 26 is led from a roll lead-out mechanism, not shown, into the first turning device 36. Here, the roller blanket 26 is pressed against the guide surface 58 of the radially outward guide element 48 due to centrifugal force and gravity and turns obliquely upward along the circumference about the first turning axis 46. The roller strip 30 can be prevented from vibrating by this special arrangement of the radially outward guide elements 48. There is no radially inward guidance in the first steering device 36 about the first steering axis 46.

By means of the second turning device 136, the roll blanket 26 is turned a second time around the turning axis 146 there. Here, the roller blanket 26 is guided radially inward at the guide chain 28 about the steering axis 146 by means of the chain wheel 180 and at the roller 30 by means of the roller wheel 182. The roller strip 30 is guided radially outward by means of radially outward guide elements 148. Here, this special arrangement of the radially outward guide elements 148 prevents the roller strip 30 from starting to vibrate due to centrifugal forces.

Between the second turning device 136 and the third turning device 236, the roll blanket 26 is guided at the roll 30 by means of the straight guide element 120.

By means of the third turning device 236 the roll blanket 26 is turned a third time around the turning axis 246 here, so that the roll blanket 26 returns with its upper section to the roll take-off mechanism. In the third deflection device 236, the guide chain 28 is guided by means of the chain wheel 282 and the rollers 30 are each guided radially inward by means of the roller wheel 282. The teeth of the rack wheel 282 serve to position the racks 30 at equal intervals with respect to each other, and to evenly arrange the racks 30. The roll blanket 26 is guided radially outward at the roll bars 30 by means of radially outward guiding elements 248.

Runner blanket 26 passes through the area between the upper section of steel strip 14 and press plate 32 and thereby forms a rolling support for steel strip 14 relative to press plate 32.

An upper roll entry mechanism 312 for an upper roll blanket 326 is shown in fig. 4-6. The upper binding entry mechanism 312 comprises, viewed in the direction of travel 342 of the binding blanket 326, a first turning device 336 and a second turning device 436 in succession to each other. The first turning device 336 is located diagonally above the space of the second turning device 436 on the side toward the corresponding not-shown upper roll bar drawing mechanism.

The first steering device 336 includes a steering shaft 378 that extends coaxially with the first steering axis 346. First steering axis 346 extends perpendicular to travel direction 342 and parallel to runners 330 of upper runner blanket 326.

The upper runner blanket 326 is in principle constructed the same as the lower runner blanket 26. The upper roller blanket 326 has two parallel endless guide chains 328 spaced apart from each other, and the rollers 30 are secured between the guide chains 328 by means of bent rods.

Chain wheels 380 are disposed on each end of the steering shaft 378. The sprockets 380 each define an area 350 in which the guide chain 328 travels. By means of chain wheel 380, guide chain 328 and thus also runner blanket 326 is guided radially inward with respect to first steering axis 346.

Furthermore, the first turning device 336 has two radially outward guide elements 348, by means of which the roller strips 330 are guided radially outward about the first turning axis 346.

The radially outward guide elements 348 each have a guide surface 358 which acts on the outer side of the roller blanket 326. The guide surfaces 358 each partially circumferentially surround the first steering axis 346 by more than about one-quarter of the circumference. The guide surface 358 here surrounds the deflection apex 370 from both sides.

The angle 374 shown in fig. 5 between a plane parallel to the YZ plane (i.e. the spatially perpendicular plane 376) and an imaginary connecting plane 372 between the exit side of the first turning device 336 and the entry side of the second turning device 436 is, for example, approximately 26 °.

The angle 360 between the imaginary connecting plane 372 and the imaginary connecting plane 368 between the entry side of the first turning device 336 and the exit side of the upper roller exit mechanism is, for example, approximately 115 °.

The direction of travel 342 of the taped blanket 326 is then not changed by means of the first turning device 336.

The lead-in tangential plane 362 to the guide surface 358 is inclined at an angle 366, for example, of about-26 ° relative to the connection plane 368 in a plane perpendicular to the steering axis 346.

The radially outward guide elements 348 are arranged between the chain wheels 380, viewed in the X-direction, in the region of the roller strip 30, axially offset relative to these chain wheels with respect to the steering axis 346.

The axial length of the roller strip 330 corresponds to the axial length of the roller strip 30 of the underlying roller blanket arrangement 24.

The corresponding axial distance 352 between the radial outward guide element 348 shown in fig. 6 and the center point between the regions 350 of the guide chain 328, with respect to the deflection axis 346, corresponds to the distance 52 of the first deflection device 36 of the radial outward guide element 48 here and is 0.5 meters.

The second turning device 436 of the upper roll bar entry mechanism 312 is constructed substantially similarly to the third turning device 236 of the lower roll bar entry mechanism 12, with the difference that the guide surfaces 458 of the radially outward guide elements 448, which guide the upper roll blanket 326 on their outer side, extend only about 1/4 of the circumference with respect to the turning axis 446 here.

Furthermore, the second steering device 436 has a steering axle 478, to which two chain wheels 480 and six roller wheels 482 are fastened. The chain wheel 480 defines an area 450 of the guide chain 328.

During operation of press 10, upper roll blanket 326 is guided in a direction of travel 342 from the upper roll exit mechanism to first diverter 336 of upper roll entry mechanism 312. The roller blanket 326 is guided radially inward at the guide chain 328 by the chain wheel 380. The radially outward guide element 348 acts on the roller strip 330 radially outward on the turning axis 346 on the outside of the roller strip blanket 326 and prevents the roller strip from starting to vibrate due to centrifugal forces.

By means of the second diverting device 436, the roller blanket 326 is guided radially inward on the inside of the roller blanket 326 and about the diverting axis 446 via the guide chain 328 and the chain wheel 480 on the one hand and via the rollers 330 and the roller wheel 482, which is configured as a gear, on the other hand. The roller strip 330 is guided radially outward on the outside of the roller strip blanket 326 and about the turning axis 446 by means of a radially outward guiding element 448.

By means of the second turning device 436, the lower section of the space of the roll blanket 326 is guided back to the upper roll-out mechanism. The roll blanket 326 passes through the area between the lower section of the upper steel belt and the upper platen and thereby forms a rolling support for the upper steel belt relative to the upper platen.

List of drawings:

10. press machine

12; 312. rolling strip entering mechanism

14. Steel belt

16. Steering tube

18. Pressing material

20. Production direction

24; 324. strip-rolling blanket device

26; 326. rolling blanket

28; 328. guide chain

30, of a nitrogen-containing gas; 330. rolling strip

32. Pressing plate

36;136;236;336; 436. steering device

42; 342. running direction of the strip-rolling blanket

44. Running path of rolled blanket

46;146;246;346; 446. steering axis

48;148;248;348; 448. radially outward guide element

50;150;250 (c); 350; 450. region for guiding chain

52; 352. distance from center

54. Distance of the region of the guide chain

56. Distance of guide element to region of guide chain

58;158;258;358; 458. guide surface

60;160; 360. angle of lead-in tangential plane/lead-out tangential plane

62;162; 362. introducing tangential planes

64; 164. lead out tangential plane

66;166; 366. introducing an angle between the tangential plane and the connection plane

68; 368. plane of connection

70;170; 370. vertex point

72;172; 372. plane of connection between steering devices

74;174, and (b) a; 374. angle between plane of connection and perpendicular

76;176; 376. plane of vertical space

178;278;378; 478. steering shaft

180;280 parts of; 380 of the raw material; 480. chain wheel

182, respectively; 282; 482. rolling wheel

84. Distance between first steering shaft and second steering shaft

118. Distance between two adjacent plates

120. A straight guide element.

Claims

1. A binding feed mechanism (12) for a cycling binding blanket (26) of a continuously operating press (10) for producing pressboard, wherein the roller blanket (26) has two spaced apart endless guide chains (28) extending parallel to each other, between which a plurality of rollers (30) extend perpendicular to the guide chains (28), wherein the roller strip entry mechanism (12) comprises at least one turning device (36) for a roller strip blanket (26), the turning device has an imaginary turning axis (46) around which the runner blanket (26) can be turned, wherein the steering axis (46) extends perpendicular to a running direction (42) of the runner blanket (26), wherein the at least one deflection device (36) has at least one guide element (48) which is radially outward with respect to the deflection axis (46), the roller carpet (26) can be guided radially outwards by means of the radially outwards guiding element, and the at least one guide element (48) has at least one guide surface (58), the guide surface extends at least partially in the circumferential direction with respect to the steering axis (46), characterized in that the at least one deflection device (36) has no guide elements radially inward with respect to the deflection axis (46), the roller blanket (26) can be guided radially inward by means of the radially inward guiding element.

2. The roll bar entry mechanism according to claim 1, characterized in that at least one radially outward guiding element (48) of the at least one turning device (36) is arranged between axially mutually opposite areas (50) of the roll bar blanket (26) in which the guiding chains (28) can run, so that the guiding element can guide the roll bars (30) of the roll bar blanket (26) radially outward.

3. The roller entry mechanism according to claim 1 or 2, characterized in that at least one radially outward guide element (48) of the at least one turning device (36) is arranged in a region (50) in which the guide chain (28) can run, so that it can guide the corresponding guide chain (28) radially outward.

4. Bar roll entry mechanism according to claim 1 or 2, characterized in that in a plane perpendicular to the turning axis (46), the angle (60) between an imaginary incoming tangential plane (62) to the at least one guide surface (58) of the at least one radially outward guide element (48) and an imaginary outgoing tangential plane (64) to the at least one guide surface (58) is at least 90 °, and/or the angle between two imaginary connecting planes is at least 90 °, one (68) of which is the connecting plane between the at least one turning means (36) and a turning means in front with respect to the path of travel (44) of the bar blanket (26), the other (72) being the connecting plane between the at least one turning means (36) and a turning means in rear.

5. The bar entry mechanism according to claim 4, characterized in that the angle (60) between an imaginary lead-in tangential plane (62) to the at least one guide surface (58) of the at least one radially outward guide element (48) and an imaginary lead-out tangential plane (64) to the at least one guide surface (58) is between 90 ° and 120 °.

6. The roll bar entry mechanism of claim 4 wherein the angle between two imaginary joining planes is between 90 ° and 120 °.

7. The roll bar entry mechanism according to claim 1 or 2, characterized in that an imaginary lead-in tangential plane (62) is inclined in a plane perpendicular to the turning axis (46) with respect to an imaginary connecting plane (68) and/or with respect to a spatial horizontal plane away from the turning axis (46) at an angle (66) of between-12 ° and +5 °, wherein the imaginary lead-in tangential plane (62) extends tangentially to the at least one guide surface (58) of the at least one radially outward guide element (48) and the at least one turning means (36) extends with respect to an imaginary connecting plane (68) between the preceding turning means with respect to the running path (44) of the roll bar blanket (26).

8. The roll bar entry mechanism of claim 7 wherein said angle (66) is between-12 ° and 0 °.

9. The bar entry mechanism according to claim 1 or 2, characterized in that the curvature of the at least one guide surface (58) of the at least one radially outward guide element (48) decreases at least in a section, seen in the running direction (42) of the bar blanket (26), before a run-out area of the at least one guide surface (58).

10. Bar entry mechanism according to claim 9, characterized in that the curvature of the at least one guide surface (58) of the at least one radially outward guide element (48) decreases continuously before the exit area of the at least one guide surface (58), at least in sections, as seen in the running direction (42) of the bar blanket (26).

11. Roller entry mechanism according to claim 1 or 2, characterized in that an imaginary leading-out tangential plane (64) to the at least one guide surface (58) of the at least one radially outward guide element (48) and/or an imaginary connecting plane (72) between the at least one turning device (36) and a following turning device (136) with respect to the path of travel of the roller blanket (26) is inclined in a plane perpendicular to the turning axis (46) at an angle of at least 0 ° away from the turning axis (46) with respect to a spatially perpendicular plane (76) with the turning axis (46).

12. The roll bar entry mechanism of claim 11 wherein said angle is between 0 ° and 30 °.

13. The roll bar entry mechanism according to claim 1 or 2, characterized in that the at least one guide surface (58) of the at least one radially outward guide element (48) is directed spatially upward, seen in the running direction (42) of the roll bar blanket (26).

14. The roll bar entry mechanism according to claim 1 or 2, characterized in that the roll bar entry mechanism (12) has at least two similar or different turning devices (36.

15. The roll bar entry mechanism according to claim 14, characterized in that the roll bar entry mechanism (12) has three similar or different turning devices (36.

16. The roll bar entry mechanism of claim 1 wherein said compression plates are plates of material produced from wood and/or recycled agricultural products, and plates of plastic.

17. The roll bar entry mechanism of claim 16, wherein the sheet of material is particle board, fiber board, straw board, or particle board.

18. A roll blanket arrangement (24) of a continuously operating press (10) for producing pressboards, comprising at least one endless roll blanket (26) having two spaced endless guide chains (28) extending parallel to each other, between which a plurality of rolls (30) extend perpendicularly to the guide chains (28), and comprising at least one roll entry means (12) by means of which the at least one roll blanket (26) is guided, wherein the roll entry means (12) comprises at least one turning device (36) for the roll blanket (26), which turning device has an imaginary turning axis (46), the runner blanket (26) is diverted around the diverting axis and the diverting axis extends perpendicular to the running direction (42) of the runner blanket (26), the at least one diverting device (36) has at least one radially outward guiding element (48) by which the runner blanket (26) is guided radially outward with respect to the diverting axis (46), wherein the at least one radially outward guiding element (48) has at least one guiding surface (58) which extends at least partially circumferentially with respect to the diverting axis (46), characterized in that the at least one diverting device (36) does not have a radially inward direction with respect to the diverting axis (46) By means of which the roller blanket (26) can be guided radially inwards.

19. The tapestry device of claim 18, wherein said press plate is a plate of material produced from wood and/or recycled agricultural products, and a plate of plastic.

20. The roll blanket device of claim 19 wherein said sheet of material is particle board, fiber board, straw board or particle board.

21. A continuously operating press (10) for producing press plates, comprising at least one revolving endless steel belt for transporting the press and press plates and at least one pressing device (32) for pressing against at least one steel belt (14) and at least one roll blanket device (24), wherein the roll blanket device (24) comprises at least one endless roll blanket (26) with two spaced endless guide chains (28) extending parallel to each other, between which a plurality of roll strips (30) extend perpendicularly to the guide chains (28), and at least one roll strip entry mechanism (12) by means of which the at least one roll blanket (26) is guided, wherein the roll strip entry mechanism (12) comprises at least one turning device (36) for the roll blanket (26) with an imaginary turning axis (46) around which the roll blanket (26) is turned and which is perpendicular to the direction of travel (42) of the roll blanket (26), the turning device having at least one turning element (46) extending radially outwards with respect to the guide surface (48), wherein the at least one guide element (48) extends radially outwards with the at least one turning element (48) radially outward of the at least one roll blanket (26), wherein the at least one guide element (46) is provided with at least one turning element (48) radially outward facing element (48), the guide surface extends at least partially in the circumferential direction with respect to the turning axis (46), wherein the clothing (26) is guided between the at least one steel strip (14) and the at least one pressing device (32), characterized in that the at least one turning device (36) has no guide elements (48) radially inward with respect to the turning axis (46), by means of which the clothing (26) can be guided radially inward.

22. A continuously operating press as claimed in claim 21, wherein the press plates are plates of material produced from wood and/or recycled agricultural products, and plates of plastic.

23. A continuously operating press as claimed in claim 22, characterized in that the material sheet is a particle board, a fibre board, a straw board or a particle board.

24. Method for guiding a circulating roller blanket (26) by means of a roller entry mechanism (12) of a continuously operating press (10) having two spaced apart circulating guide chains (28) extending parallel to each other, between which a plurality of rollers (30) extend perpendicularly to the guide chains (28), for producing press plates, wherein the roller blanket (26) is deflected by means of at least one deflection device (36) about at least one imaginary deflection axis (46) extending perpendicularly to the running direction (42) of the roller blanket (26), and the roller blanket (26) is guided radially outward with respect to the at least one deflection axis (46), by means of at least one radially outward guide element (48), at least partially in the circumferential direction, characterized in that the roller blanket (26) is not guided radially inward with respect to the deflection axis (46).

25. The method of claim 24, wherein the press plates are plates of material produced from wood and/or recycled agricultural products, and plates of plastic.

26. A method according to claim 25, wherein the sheet of material is particle board, fibre board, straw board or particleboard.