Method for operating a continuous working press and continuous press

Abstract

The invention relates to a method for operating a continuously working press (1) having an upper platen (2) and a lower platen (3) and a circulating pressing belt (4) which is supported on the respective platen (2, 3) with rolling bars (5) connected therebetween, the pressing material introduced into a pressing gap (P) between the circumferential pressing belts (4) is pressed by applying pressure and heat, and wherein a lubricant is applied to the pressing belts (4) and / or the rolling bars (5) and / or the pressing plates (2, 3), characterized in that a solid lubricating material is used as the lubricant. The invention further relates to a continuous press.

Description

[0001] This application is a divisional application of the invention patent application filed on October 18, 2019, with application number 201910990848.6 and invention title "Method for Operating a Continuous Press and a Continuous Press". Technical Field

[0002] This invention relates to a method for operating a continuously operating press having an upper pressure plate and a lower pressure plate, and a circulating pressure belt supported on the pressure plates with a rolling bar (or roller) connected in the middle, wherein extrusion material introduced into the extrusion gap between the circulating pressure belts is extruded under applied pressure and heat, and wherein a lubricant is applied to the pressure belt and / or the rolling bar and / or the pressure plate. The rolling bar is typically cylindrical, for example made of steel (having a predetermined length and a predetermined diameter). Background Technology

[0003] This continuous press thus has an upper part with a (heatable) upper pressure plate and a lower part with a (heatable) lower pressure plate, wherein, if necessary, an inlet plate may be adjacent to the pressure plate / heating plate on the inlet side. A circulating upper pressure strip is guided in the upper part of the press, and a circulating lower pressure strip is guided in the lower part of the press, wherein these pressure strips are, for example, constructed of steel strips. Rollers are connected at their end sides, for example, to a roller chain, or by means of roller support pins. The rollers or roller bars thus form the roll body assembly between the respective pressure plates and the circulating pressure strips. The required extrusion force is applied using a force device, particularly a hydraulic cylinder, which loads, for example, the upper and / or lower pressure plates and is supported on the press frame, for example, on the press frame of the press frame.

[0004] This type of continuous-operation press is preferably used for manufacturing wood panels. Wood panels specifically refer to fiberboard, particleboard, or OSB board. However, the invention also relates to the manufacture of composite panels or composite components, or plastic sheets or plastic mats, for example, made of fiber composite materials or the like.

[0005] In a continuous-operation press, material (e.g., an extrusion pad) is pressed under pressure and heat within a surrounding steel belt or the extrusion gap between the belts, thereby producing a sheet-like product, such as a wood panel. Here, rolling bars are rolled on the pressure plate as a roll assembly. Due to typical production tolerances, or the minimum deviation of the rolling bar shape from the perfect cylindrical shape, stroke or length differences may occur at the two outer ends of the rolling bar during the rolling motion, which are compensated for by micro-slippage. In this context, it is common practice and necessary to lubricate or oil the rolling bar or its cylindrical surface using a liquid lubricant. This liquid lubricant is applied to the rolling bar, for example, by means of nozzles entering the area or within the rolling bar surrounding structure.

[0006] Apparatus and methods for monitoring and / or regulating the lubrication status in a continuous-operation press are known from DE102016102931A1. The described measures aim to prevent excessive use of lubricant while ensuring adequate lubrication, thereby preventing damage to press components and ensuring a long service life. To this end, a sensor is installed in the press, which measures physical phenomena related to the amount of lubricant on the surrounding pressure belt. For example, the quotient of the drive power of the drive rollers for driving the belt and the extrusion force of at least one pressure cylinder in the press can be used as a lubrication parameter.

[0007] A continuous-operation press, for example described in DE4015706A1, has multiple pressure plates with or without pressure rollers that can be heated and / or cooled. A belt cleaning device, located in a post-treatment zone, should be provided on the inner side of the upper belt, away from the extrusion gap. The cleaning water may contain additives such as oil, PTFE particles, wax, graphite, and / or corrosion inhibitors. Furthermore, a graphite block may be provided in the area of ​​the pressure plate before the temperature treatment zone, abutting against the inner wall of the upper or lower belt, so that the area of ​​the belt directly in contact with the plate has a graphite layer that does not tend to crack or adhere to the belt even at very high temperatures in the treatment zone, and is therefore also removable by the cleaning device.

[0008] Furthermore, DE19527091 describes a continuous press in which a formed body for guiding a circulating process belt and optionally regulating its temperature is integrated, wherein the guide surface of the formed body is convex relative to the process belt, and the radius of the convex portion is chosen such that surface-locking belt operation is achieved. The surface layer of the guide body may be made of a solid lubricating material, which may involve PTFE, molybdenum disulfide, graphite, lubricating metal, or a combination of these materials.

[0009] Furthermore, DE202017107775U1 describes a continuous press in which the rolling bars are provided with a self-lubricating coating, wherein the self-lubricating coating may be carbon-based, for example, configured as a coating made of tungsten carbide. Here, the coating is applied to the rolling bars by deposition from a vapor phase or a plasma phase.

[0010] As already mentioned, in practice, liquid lubricants, especially oils, are used for lubrication, applied to the pressure belt and / or rolling bars. Therefore, the frictional force on the rolling bars between the pressure belt and the pressure plate should be kept low. These measures have been proven in practice; however, the use of such lubricants is associated with the corresponding production costs. Furthermore, the application of lubricants is limited by temperature. The present invention is hereby initiated. Summary of the Invention

[0011] The present invention provides a method that enables the particularly economical operation of a continuous-run press and preferably also allows for higher operating temperatures.

[0012] To achieve the aforementioned objective, the present invention teaches in this method of the type described at the beginning to use solid lubricating materials as lubricants (for dry lubrication of the pressure belt and / or rolling bars and / or pressure plates). Such solid lubricating materials can be, in particular, solid lubricating materials or dry lubricants having a layered lattice structure. Graphite is particularly preferred here; however, molybdenum disulfide (MoS2) can also be used alternatively. Particularly preferably, such solid lubricating materials are provided in powder form and introduced into the circulation structure for lubrication, for example, applied to the pressure belt and / or rolling bars and / or pressure plates. The present invention is based on the understanding that liquid lubricants, especially lubricating oils, are discarded in the area of ​​continuously operating presses, by means of solid lubricating materials, such as (powdered) graphite, and thus by means of dry lubrication. The advantages of such solid lubricating materials are good lubrication and low cost. Furthermore, solid lubricating materials can be used as lubricating oils at higher temperatures, for example. The problem of high evaporation rates, which must be compensated for by appropriate additives in the case of lubricating oils, does not exist in solid lubricating materials, thus enabling particularly economical operation. Unlike oil lubrication, solid lubrication does not involve consumable lubrication. Its high heat resistance allows the pressing process to operate at particularly high temperatures, especially at the higher heating plate temperatures of continuous presses. This allows the press to operate at, for example, higher speeds due to faster heat input, resulting in particularly economical operation and consequently, more economical manufacturing of the product. The superior lubricating properties of solid lubricating materials, such as graphite, further reduce the driving torque of continuous presses or their belt drives, leading to reduced power consumption and thus, more economical press design and operation.

[0013] Solid lubricating materials can be applied (directly) to the rolling bars and / or pressure belts, for example, using at least one conveying device for (powdered) solid lubricating materials disposed in the area of ​​the rolling bar surrounding structure and / or the area of ​​the belt surrounding structure. Such a conveying device can, for example, involve a spraying device that sprays dry solid lubricating material onto the rolling bars and / or pressure belts, wherein, in the case of a loaded pressure belt, this always refers to the inner side of the pressure belt, which faces the rolling bars and the heating plate and thus away from the extruded material. Therefore, lubrication is important in the area between the pressure plate and the pressure belt or the inner side of the pressure belt, where the rolling bars are guided. Alternatively, a spreading device can be provided with the spraying device. Furthermore, an impregnation device for the rolling bars, through which the rolling bars pass, for example, can also be involved. Alternatively, an impregnation device for the pressure belt, through which the pressure belt passes, is also considered. Application to the rolling bars can also be achieved, for example, using at least one perforated sponge through which the lubricant is pumped.

[0014] In an alternative embodiment, solid lubricant material can be introduced into the area between the pressure plate and the pressure band via a through-hole (or channel) in the pressure plate. The pressure plate can therefore have holes that open into the area of ​​the rolling rod, allowing the solid lubricant material to be conveyed through these holes. The through-hole may have a widening at its end, opening into the area where the rolling rod operates. This through-hole or widening can also serve as a lubricant storage device or lubricant bag. For delivery, the lubricant can be pumped or blown in through the holes, for example, using compressed air.

[0015] Alternatively or supplementarily, the following feasible approach exists: applying and / or distributing the solid lubricant onto and / or onto the pressure belts and / or pressure plates using a mobile transport element. This mobile transport element may, for example, be guided between the pressure plates and pressure belts along with rollers. Here, for example, a distribution block (Verteilklotz), such as a leather block or the like may be involved. This transport element may, for example, be guided or transported together with a chain that guides the rollers. With the aid of such an element, for example, a uniform input of lubricant along the total length of the press can be achieved.

[0016] Since solid lubrication is performed via a solid fraction (which does not involve lubrication consumption), according to the invention, it is not necessarily necessary to continuously deliver lubricant during operation, but it is sufficient to introduce solid lubricating material into the surrounding structure at predetermined times in a set amount.

[0017] Because solid lubrication does not involve the consumption of lubricant, according to the present invention it is not necessary to continuously deliver lubricant during operation, but it is generally sufficient to introduce solid lubricant material into the surrounding structure at predetermined time points in a set amount.

[0018] Here, in a particularly preferred extension of the invention, it is proposed that the applied lubricant dosage at least exceeds the lower limit value and further does not exceed the upper limit value, so that the applied lubricant dosage is preferably between the lower and upper limit values. The invention is based on the understanding that it involves not only determining a minimum lubricant dosage but also avoiding exceeding the upper limit value. Applying too little lubricant poses the risk that the heating plate will fail tribologically. On the other hand, applying too much lubricant poses the risk that the locking mechanism of the rolling process will be replaced by graphite agglomeration. Against this background, the invention proposes a particularly preferred extension with a minimum lubricant dosage of 0.1 g / m³. 2 Up to a maximum of 100g / m 2 The solid lubricant, such as graphite, is applied to the corresponding friction surface (e.g., the surface of a rolling bar, a pressure band, and / or a heating plate) at an application rate (preferably 0.2 g / m² to 50 g / m²). Here, the application rate is determined or selected particularly based on the solid lubricant material used, and especially based on the particle size or particle size of the solid lubricant material powder. The thickness of the solid lubricant layer on the corresponding component (rolling bar, pressure band, and / or pressure plate) can roughly correspond to the average particle size or particle size of the powder used, for example, one or two times the average particle size. If, for example, a typical particle size is used as the layer thickness, an application rate of 0.25 g / m² is obtained at a density of 2500 kg / m³ for a typical particle size of 100 nm. An application rate of 25 g / m² is obtained for particles with an average particle size approximately one hundred times larger than 10 μm. In any case, the layer thickness can be between 100 nm and 100 μm, preferably between 100 nm and 10 μm.

[0019] In a preferred extension, it is feasible to monitor the lubrication process or the formation of corresponding friction surfaces using a desired lubricant dosage and to control or adjust the lubricant addition over time. Thus, for example, it is feasible to use one or more sensors to measure the thickness of the solid lubricant layer applied to the pressure belt, platen, or rolling bar, and to control or adjust the application based on the measured value. Alternatively or supplementarily, it is feasible to control the lubricant addition or application based on other press parameters or the operation or state of the press. Therefore, for example, the amount of solid lubricant applied can be controlled or adjusted based on the operation or state of the press drive, for example, based on the driving torque, which can be determined or represented, for example, by means of current consumption or power consumption. Overall, according to the invention, the application of solid lubricant can be matched particularly economically to the corresponding requirements and operation, thereby enabling particularly economical operation of the press.

[0020] A feasible alternative, independent of the option of lubricating according to the defined state of the press, is to set up relubrication at defined time intervals, which are much larger than those in the case of conventional liquid lubrication.

[0021] Optionally, a feasible approach is to preheat the solid lubricant, that is, to heat it before it is introduced into the surrounding structure or applied to the corresponding friction surfaces. It is important to consider, in particular, the best possible heat transfer during the pressing process from the heated platen via the rolling rod to the pressure strip and thus to the extruded material. This heat transfer should be impaired as little as possible through the solid lubricant. In principle, the solid lubricant inside the press is heated very quickly to the operating temperature of the contacting components. Therefore, optimized heat transfer is also achieved. However, alternatively, heating the solid lubricant in the aforementioned manner can also be suitable. Heating the solid lubricant results in optimized heat transfer, and more precisely, it is heated in the area of ​​the press inlet, so that the heating of the graphite does not necessarily have to be done via the heating plate. Furthermore, preheating can also advantageously affect the distribution and / or adhesion of the lubricant on the surfaces to be lubricated. However, it is also feasible to operate at a higher heating plate temperature because solid lubricants are designed for higher temperatures compared to liquid lubricants, which have a high evaporation rate. This allows for the optional use of a correspondingly higher heating plate temperature to compensate for the reduced heat transfer due to the solid lubricant material.

[0022] Alternatively, a feasible solution is to additionally introduce liquid, typically water, or steam, into the (roller bar or pressure band) winding structure. Thus, a liquid (which does not act as a lubricant) can be added to the solid lubricant. This ensures that the lubricating properties of graphite are maintained during operation.

[0023] In principle, this method operates such that the solid lubricant is applied uniformly across the width of the pressure belt or plate, or uniformly along the length of the rolling bars, and thus generally uniformly in a direction transverse to the operating direction. However, alternatively, the amount of solid lubricant may be applied non-uniformly across the width of the pressure belt or plate, or uniformly along the length of the rolling bars. The solid lubricant according to the invention can therefore also be distributed selectively and non-uniformly, more precisely, relative to a direction transverse to the transport direction or belt running direction. This can, for example, influence or adjust belt operation.

[0024] In a preferred embodiment, the solid lubricating material is delivered separately in powder form. Alternatively, the invention also includes embodiments in which the solid lubricating material is provided by separation from the material of the pressure plate and / or pressure band and / or rolling bar. Thus, for example, the addition of graphite for lubrication can be achieved by using a specialized heating plate casting material or the like, with the inherent graphite released from the heating plate casting material, thereby the heating plate or pressure plate simultaneously serving as a graphite storage device and therefore as a lubricant storage device.

[0025] Furthermore, the subject of this invention is not only a method, but also a continuous press having an upper pressure plate and a lower pressure plate, and a circulating pressure belt supported on the pressure plates with a rolling bar connected in the middle. The continuous press also has at least one lubricant delivery device, by which lubricant can be applied to the pressure belt and / or the rolling bar and / or the pressure plates. The press is characterized in that the lubricant delivery device is configured to deliver a solid lubricating material. Therefore, this invention relates not only to the described method, but also to the press itself.

[0026] The conveying device may be located in the area of ​​the rolling bar surround structure and configured for applying to the rolling bar. Alternatively, the conveying device may be located in the area of ​​the belt surround structure and configured for applying to the pressure belt. These embodiments may also be combined with each other.

[0027] The conveying device may be configured as a spraying device, a spreading device, or an impregnation device. Furthermore, a measuring device is preferably provided, which can measure the amount of solid lubricant applied to the rolling bars, pressure belts, and / or pressure plates, or the thickness of the applied solid lubricant layer. Additionally, the press may be characterized by a control or adjustment device, which can control or adjust the conveying device, for example, based on the press's operating parameters and / or based on the thickness of the solid lubricant layer. Attached Figure Description

[0028] The invention will now be described in detail with reference to the accompanying drawings, which only illustrate embodiments. In the drawings:

[0029] Figure 1 A simplified side view shows a continuous-operation press.

[0030] Figure 2 Showing according to Figure 1 An enlarged portion of a press having a conveying device for solid lubricating materials according to the present invention.

[0031] Figure 3A and 3B The second embodiment of the present invention is shown.

[0032] Figure 4 The third embodiment of the present invention is shown.

[0033] Figure 5 The fourth embodiment of the present invention is shown.

[0034] Figure 6 The fifth embodiment of the present invention is shown.

[0035] Figure 7A , 7B 7C illustrates the sixth embodiment of the present invention.

[0036] Figure 8 The seventh embodiment of the present invention is shown, and

[0037] Figure 9 This illustrates another aspect of the invention. Detailed Implementation

[0038] exist Figure 1 The diagram shows a continuous-operation press 1, which is suitable and defined, for example, for extruding an extrusion pad into an extrusion sheet during the manufacture of particleboard, fiberboard, or other wood panels. The continuous press 1 has, in its basic construction, an upper part with a heated upper pressure plate 2 and a lower part with a heated lower pressure plate 3. The heated pressure plates 2 and 3 are also referred to as heating plates. A circulating pressure belt 4 (e.g., made of steel) is guided in the upper and lower parts of the press, forming an extrusion gap P, wherein the pressure belt 4 is supported against the pressure plates 2 and 3 with a rolling bar or rolling rod 5 connected in the middle. Here, the rolling bar 5 is guided, for example, by means of a rolling bar support on a rolling bar chain (not shown in detail). The rolling bar 5 itself may be columnar. Thus, the rolling bar or rolling rod forms a roller body assembly between the respective pressure plates 2 and 3 and the circulating pressure belt 4. The required extrusion force is applied by means of a force device, particularly a hydraulic cylinder 7, which loads, for example, an upper pressure plate and / or a lower pressure plate, and is supported on the press frame, for example on the press frame 6 of the press frame.

[0039] Lubricant is applied to the rolling bar 5 and / or the pressure belt 4 and / or the pressure plates 2, 3. According to the invention, a solid lubricant is used as the lubricant. Therefore, the press 1 according to the invention is equipped with at least one lubricant delivery device configured to deliver a solid lubricant. Figures 2 to 9 Different variations of this conveying device are shown, and these variations can also be combined with each other.

[0040] exist Figure 2 The diagram shows a first embodiment in which the conveying device is configured as a spraying device 8. This spraying device 8 applies powdered solid lubricating material to the rolling bar 5. Alternatively or supplementarily, this spraying device 8 can also be used to spray solid lubricating material onto the pressure belt 4, more specifically onto the inside of the pressure belt. Similarly, this conveying or spraying device can also be configured as a spreading device.

[0041] exist Figure 3A and 3B The diagram shows one possible embodiment of the dispensing device 16, wherein, Figure 3A The spreading device is shown extending transversely to the operating direction A of the press, and thus a simplified cross-section transversely to the operating direction is shown. Figure 3B Show Figure 3A The cross-section shows a rolling rod 5 rotating along the circumferential direction u. The spreading device 16 has a sealed or tight spreading chamber 18 in which a dispensing tool, such as a worm gear 17, is rotaryly driven, wherein the worm gear 17 has two worm sections 17a and 17b moving in opposite directions, Fa and Fb. A sieve 19 is provided below the worm, through which solid lubricating material is applied to the rolling rod 5, more precisely, across the entire width of the rolling rod 5 based on worm transport. This embodiment thus operates by means of a worm transport device with a sieve insert and a sealed spreading chamber. Spreading on the rolling rod 5 through the sieve 19 is achieved via a dust channel 27, which can be laterally sealed by a sealing strip 28, such as a felt gasket seal. A vent box 20 may be provided on the side of the rolling rod 5 opposite to the spreading device 16, which is configured, for example, as a negative pressure box and receives excess solid lubricating material and discharges it, and provides it for reuse if necessary. This embodiment is preferably located outside the pressure plate in the structure surrounding the rolling rod, so that the space on the opposite side of the rolling rod can be used by the exhaust box 20.

[0042] exist Figure 4A third embodiment of the conveying device, more specifically an impregnation device 9, is shown in a highly simplified manner. This impregnation device can, for example, be integrated into a rolling bar winding structure, so that the rolling bars 5, guided on the rolling bar chains, are guided through the impregnation device 9 by means of these chains. In the illustrated embodiment, the impregnation device 9 is located on the departing side of the rolling bar winding structure.

[0043] exist Figure 5 The fourth embodiment is shown, wherein the conveying device has one or more sponge-like elements 10, each having a hole 11, wherein the rolling rod 5 is guided through the sponge-like elements 10 as it passes through. Solid lubricating material can be pumped onto the rolling rod 5 through the holes 11.

[0044] exist Figure 6 One embodiment is shown, in which the solid lubricant is introduced via a through-hole 13, for example, through a hole in the pressure plates 2, 3, into the region between the respective pressure plates 2, 3 and the respective pressure band 4, and thus into the region of the rolling rod 5. The pressure plates 2, 3 have holes 13 that open into this region of the rolling rod 5, thereby allowing the solid lubricant to be conveyed via the holes 13. The through-hole may have a widening 14 at its end side, which opens into the region of the rolling rod surrounding structure. The through-hole 13 and the optionally provided widening 14 can therefore also serve as a lubricant storage device or a lubricant bag. For delivery, the lubricant can be pumped or blown in through the holes 13, for example, using compressed air.

[0045] exist Figure 7A , 7B The sixth embodiment of the invention is shown in 7C, in which the solid lubricant material is also conveyed via the pressure plate or heating plates 2, 3. Here, the invention is based on the understanding that in modern continuous presses, the heating plates 2, 3 are often composed of a plurality of individual partial plates 21, which are arranged sequentially in the press along the working direction A. These partial plates 21 thus abut against each other at a butt joint extending transversely to the working direction A, with gaps 23 formed at their ends, thereby forming a rolling joint of the rolling rod 5. Solid lubricant material can be conveyed via these gaps 23 or the rolling joint. Figure 7B A view showing the pressure plate or a portion of the plate 21 is provided, showing the gap 23 disposed therebetween. Figure 7B The vertical cross-section of part of plate 21 in the region of the gap 23 is shown. Figure 7C Show Figure 7AA magnified view of the portion shows that the rolling joint or gap 23 extends obliquely towards the running direction of the rolling rod or the operating direction of the press 5, more precisely, for example, extending in an arrowhead, zigzag, or zigzag shape in multiple sections. This is known in principle. A conveying channel 24a of the gap 23 may be integrated into the gap 23, or an additional conveying channel 24b may be connected to the gap 23 or channel 24a to convey solid lubricating material via the gap 23, more precisely, in the region of the rolling rod 5 rolling on the partial plate 21.

[0046] exist Figure 8 The seventh embodiment of the invention is schematically simplified in the diagram, wherein the conveying device is also configured as a spreading device 16, however, in another embodiment. It can be seen that this spreading device also has a spreading chamber 18 in which a dispensing element, such as a camshaft 25, is rotatably driven. The cylindrical housing 18 may have a plurality of through-holes 26 through which solid lubricating material is spread.

[0047] Replace or supplement in Figures 2 to 8 The variant shown in the figure is according to Figure 9 A feasible approach is to apply and / or dispense solid lubricating material onto the pressure belts 4 and / or pressure plates 2, 3 using a movable transport element 15. This movable transport element 15 can be guided, for example, along with a rolling bar 5 between the pressure plates 2, 3 and the pressure belt 4. Here, a dispensing block, such as a leather block or the like, may be involved. The transport element 15 can be guided or transported together, for example, by a rolling bar chain. Details are not shown in the figures. The transport element 15 can be used to apply lubricant. However, the transport element can also be attached to... Figures 2 to 8 The variant shown is configured and is intended only to ensure that the lubricant is applied evenly over the entire length of the press.

Claims

1. A method for operating a continuous-operation press (1), the press having an upper pressure plate (2) and a lower pressure plate (3) and a circulating pressure belt (4), the pressure belt being supported on the pressure plates (2, 3) with a rolling bar (5) connected in the middle, wherein, The extrusion material is extruded into the extrusion gap (P) between the surrounding pressure bands (4) under pressure and heat, wherein a lubricant is applied to the pressure bands (4) and / or the rolling bars (5) and / or the pressure plates (2, 3), characterized in that a solid lubricant is used as the lubricant.

2. The method according to claim 1, characterized in that, Use solid lubricating materials with a layered lattice structure, such as graphite or molybdenum disulfide.

3. The method according to claim 1 or 2, characterized in that, Use solid lubricating materials in powder form.

4. The method according to any one of claims 1 to 3, characterized in that, The solid lubricating material is provided by separating it from the material of the pressure plate (2, 3) and / or pressure band (4) and / or rolling bar (5).

5. The method according to any one of claims 1 to 3, characterized in that, The solid lubricating material is applied to the rolling bar (5) for example by using a conveying device, such as a spraying device (8), a spreading device, or an impregnation device (9) provided in the area surrounding the rolling bar structure.

6. The method according to any one of claims 1 to 5, characterized in that, The solid lubricating material is applied to the pressure belt (4) for example by using a conveying device, such as a spraying device (8), a spreading device, or an impregnation device (9) provided in the area of ​​the belt wrapping structure.

7. The method according to any one of claims 1 to 6, characterized in that, The solid lubricating material is introduced into the area between the pressure plate (2, 3) and the pressure band (4) via the through portion (13) in the pressure plate (2, 3) and / or the separation gap (23) between the various pressure plate portions (21).

8. The method according to any one of claims 1 to 7, characterized in that, Solid lubricating material is applied to and / or distributed onto the pressure belt (4) and / or pressure plate (2, 3) using a movable transport element (15), which is guided, for example, together with a roller (5) between the pressure plate (2, 3) and the pressure belt (4), or between two rollers (5) arranged sequentially along the passage direction.

9. The method according to any one of claims 1 to 8, characterized in that, The solid lubricating material is applied to the pressure belt (4) and / or pressure plate (2, 3) and / or rolling bar (5) at a rate of at least 0.1 g / m² and / or at a rate of at most 50 g / m².

10. The method according to any one of claims 1 to 9, characterized in that, The thickness of the solid lubricating material layer applied to the pressure belt (4), pressure plate (2, 3), or rolling bar (5) is measured, and the application is controlled or adjusted according to the measured value.

11. The method according to any one of claims 1 to 10, characterized in that, The amount of solid lubricating material applied is controlled or adjusted according to the operation or condition of the press (1), especially according to the operation or condition of the press drive, for example, according to the drive torque or power consumption of the drive.

12. The method according to any one of claims 1 to 11, characterized in that, The solid lubricant is preheated before or during application.

13. The method according to any one of claims 1 to 12, characterized in that, Add liquid, such as water, or steam to the solid lubricant.

14. The method according to any one of claims 1 to 13, characterized in that, Apply a quantity of solid lubricating material unevenly across the width of the pressure band (4) or pressure plate (2, 3) or along the length of the rolling bar (5).

15. A continuous press (1) having an upper pressure plate (2) and a lower pressure plate (3) and a circulating pressure belt (4) supported on the pressure plates (2, 3) with a rolling bar (5) connected in the middle, and the press having at least one lubricant delivery device by means of which lubricant can be applied to the pressure belt (4) and / or the rolling bar (5) and / or the pressure plates (2, 3), characterized in that, The lubricant delivery device is configured to deliver solid lubricant materials.

16. The press according to claim 15, characterized in that, The conveying device is disposed in the area of ​​the rolling bar surrounding structure and constitutes an application to the rolling bar (5).

17. The press according to claim 15 or 16, characterized in that, The conveying device is located in the area with the surrounding structure and is configured for application onto the pressure belt (4).

18. The press according to any one of claims 1 to 17, characterized in that, The conveying device is configured as a spraying device (8), a spreading device, or an impregnation device (9).

19. The press according to any one of claims 1 to 18, characterized in that, A measuring device is provided, which can be used to measure the amount of solid lubricating material applied or the thickness of the applied solid lubricating material layer.

20. The press according to any one of claims 1 to 19, characterized in that, The device is equipped with a control or adjustment device, which can be used to control or adjust the conveying device, for example, based on the operating parameters of the press and / or the thickness of the solid lubricating material layer.

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