DE202017107652U1 - Disposal of unpressed material in a press for the continuous production of material plates - Google Patents

Abstract

Press (10) for the continuous production of material plates (16) from scatterable material, in particular for producing chip, fiber, OSB, insulating and / or plastic plates, comprising: a collecting device (42) for catching from a press nip (12) between press belts (14a, 14b) of the press (10) escaping unpressed material (32); anda conveying device (34) for conveying the material (32) collected by the collecting device (42) into a disposal region (36) of the press (10), wherein the collecting device (42) and the conveying device (34) travel along the press nip (12). preferably in a discharge section (28) of the press (10), the collecting device (42) for deflecting the collected material (32) in the direction of the conveying device (34) is formed; and the conveyor (34) comprises a movable member (40) for transporting the collected material (32).

Description

The present invention relates to a press for the continuous production of material plates from scatterable material, in particular for the production of chipboard, fiber, OSB, Dämmstoff- and / or plastic plates.

In the continuous production of material slabs from spreadable material, a mixture of particles and / or fibrous matter (eg, wood chips or other lignocellulosic material) and a binder (eg, glue) is scattered to a spreading mat on a forming or conveyor belt. This grit mat (also referred to as particle mat) is then, after any necessary pretreatment, fed to a continuous or discontinuous pressing, which can be done by means of pressure and / or heat. For example, chipboard, fiber or OSB boards can be produced in this manner.

After a mostly required venting in a pre-press, the actual pressing takes place in the pressing area of a press, through which the spreading material mat is conveyed between an upper and a lower revolving press belt (endless belts). As press belts usually metal bands are used, which have a good heat conduction, so that heating of the grit mat is made possible. Between the press belts is the press nip, through which the material to be pressed is conveyed. The press belts are mounted on rollers or rolling bars or on slippery surfaces. The pressing takes place by means of a plurality of pressing cylinders which are arranged in the production direction (strip running direction) in press racks and exert pressure on the spreading material mat via the press belts or their supports. Usually, hydraulic cylinders are used to exert the required pressing force.

In the press area of the press, a pressure and temperature profile controlled in the direction of production is set in order to produce the necessary material density of the spreading material mat. Due to the temperature profile and the thermal energy supplied, steam is generated by the residual moisture in the grit mat, which transports the thermal energy into the center of the mat. As a result, a uniform and rapid increase in temperature in the grit mat is achieved. Part of the generated steam exits laterally from the grit mat. If the preset nominal dimension for the final thickness of the spreading material mat and the temperature is reached, which leads to the setting of the binder, the grit mat passes through a discharge section. Within the unloading section, the press pressure and the supply of heating energy are reduced so that the desired thickness of the material plate is achieved. The discharge section ensures that the excess vapor pressure in the spreading material mat is slowly reduced.

In the discharge section, it may happen due to the vapor pressure within the compacted material that unpressed, so not sufficiently firmly bound material at the edge of the grit mat laterally from the press nip is thrown to the outside (in the case of OSB boards also referred to as beach waste). Due to the added binder, this escaping material can lead to adhesions and impurities in the lateral area of the press and requires regular, costly and expensive cleaning in the inaccessible areas next to and below the press nip. In addition, there is a fire hazard of the escaping material due to the heat and the added substances.

In this context, it is known to provide an extraction of the escaping material from the press. An air flow at the side of the press nip along the discharge section of the press is used to draw the escaping material from the press area of the press. A disadvantage of such suction is that it can lead to sticking of the corresponding suction channels, which therefore also require regular cleaning and maintenance. In addition, such a suction requires the use of strong pressure generators, since large volumes must be ventilated. Therefore, suction is disadvantageous in terms of practicability as well as cost. In addition, the risk of fire is possibly even increased by the air supply.

On the basis of this, therefore, the problem arises of preventing contamination by escaping material in the discharge section of the press area and thus to reduce the operating costs of the press. In particular, the maintenance should be reduced. In addition, the operational safety should be increased in terms of fire risk.

To solve this problem, in one aspect, the present invention relates to a press for the continuous production of material plates from spreadable material, comprising: a catching device for catching from a press nip between press belts escaping the press escaping unpressed material; and a conveying device for conveying the material collected by the collecting device into a disposal area of the press, wherein the collecting device and the conveying device are arranged along the press nip; the collecting device for deflecting the Trapped material is formed in the direction of the conveyor; and the conveying device comprises a movable element for transporting the collected material.

The present invention is particularly suitable for carrying out a method for the continuous production of material plates of spreadable material with a press, comprising the steps of: collecting from a press nip between press belts of a press escaping unpressed material with a catching device, preferably along the press nip in a discharge section of Press is arranged; Conveying the material collected by the collecting device into a disposal area of the press with a conveying device which is arranged in the unloading section in the pressing region of the press along the press nip; Deflecting the collected material in the direction of the conveying device with the collecting device; and transporting the collected material with a movable member of the conveyor.

Preferred embodiments of the invention are described in the dependent claims.

According to the invention, a collecting device and a conveying device are provided in the unloading section. Due to the vapor pressure from the area of the press nip between the press belts, the collecting device collects escaping, unpressed material and deflects it in the direction of the conveying device. With the conveyor, the collected material is then transported to a disposal area in which the material is supplied for disposal. In particular, the material can be removed from the disposal area readily. According to the invention, the contamination of the press is reduced because the escaping material is directly collected and removed.

It is envisaged that the conveyor device comprises a movable element with which the collected material is transported. The material preferably rests on the movable element. Under a moving element is understood to mean an element that performs a translational movement, so that a distance is overcome. In particular, a conveyor belt or a segment of a chain conveyor may be referred to as a movable element. The movable element is used for material transport and constitutes part of the conveying device. By using a movable element, it is possible to ensure that different areas of the conveying device are exposed to the collected material. It is avoided that always the same surface comes into contact with the collected material. Furthermore, cleaning of the movable element may be performed, for example, by a cleaning device provided at a location along the movable element. In addition, the risk of fire is reduced, since no air supply must take place and the collected material lying and can be transported without their own movement.

By intercepting escaping material is meant herein that the material is selectively collected and routed in an orderly manner. Catching means that the catcher is oriented so that a majority of the escaping material can not escape uncontrollably. The collecting device may comprise, for example, a lateral baffle plate, a curtain or a material catching device.

The press nip is the area between the upper and lower press belt. In the press nip is first the grit mat, which is pressed in the course of the press to a material plate. The compression runs continuously so continuously in continuous operation. On both sides of the grit mat results in an area between the press belts, which is free, since the spread is less than the bandwidth of the press belts. In the present case, this free-lying area on both sides of the spreading material mat or the material plate is to be understood in particular under the press nip.

Unpressed material is here summarized material that is ejected due to the vapor pressure from the grit mat. In addition, unpressed material is understood as meaning material which is not or not sufficiently firmly connected to the material plate. In this case, the unpressed material comprises both the spreadable material itself, ie the particles or the chips, as well as the corresponding binder. In particular, it is often not possible even during the scattering to produce the same spreading density in the edge region of the material plate as in the middle region, since usually a gradient of gravity results due to gravity, which depends on the material-binder mixture used.

In the present invention, it is preferably provided that the collecting device and the conveying device are arranged in a discharge section of the press. This unloading section designates that section of the press in front of which the grit mat has reached a defined thickness and the binder in the grit mat has reached the necessary reaction temperature for connecting the grit. In the unloading section, the pressing pressure is then slowly reduced so that excess steam can escape laterally from the press nip. It can by the vapor pressure laterally material (eg OSB strands) are removed from the spreading material mat, which was not completely connected in the edge region by the binder with the other material of the spreading material mat. In this section, the inventive design of the collecting and conveying device is therefore particularly necessary.

Downstream of the unloading section is an intermediate section, which herein designates a region between the deflection of the rolling bars and the deflection drums of the press belts. In this discharge section no press racks are provided, the press belts usually free stretched and the press nip accessible from both sides.

Compared to previous approaches, for example, the suction of the escaping unpressed material, it is achieved that the operation of the press in terms of cleaning the press in its discharge section is largely maintenance-free. As a result, the cost of producing the material plates are reduced. The operating costs of the press are reduced. The effort for the production of material plates is minimized. In addition, it prevents that due to excessive pollution production losses occur or that there is an excessive risk of spontaneous combustion of the material.

The present invention is particularly advantageous when used in a press for producing OSB boards, since in such a press the problem of the material escaping from the press nip described above is particularly pronounced.

Preferably, the conveyor device is designed as a conveyor belt device and comprises a conveyor belt as a movable element. A conveyor belt can be installed inexpensively in the press and causes a quick and uncomplicated removal of the collected unpressed material can be carried out. A conveyor belt may preferably be formed as a plastic band or as a metal band. An inexpensive promotion of the collected material is achieved.

In a preferred embodiment, the collecting device comprises a baffle plate facing the press nip for receiving a kinetic energy of the escaping unpressed material. A baffle plate is understood to mean a sheet which has a stability sufficient to compensate for the kinetic energy of the escaping material. Due to an increased vapor pressure, it can happen that particles escape at relatively high speed from the press nip. These particles impinge on the baffle plate and are deflected by this in the direction of the conveyor. The baffle prevents uncontrolled bounce. Damage to the press is avoided. The pollution is limited to the designated area. It can be ensured that the collected material is conveyed on via the conveying device in the disposal area. The baffle plate is preferably oriented so that a rebound of the impinging material is prevented in undefined directions. The orientation causes a feed to the transport device.

In a further preferred embodiment, the press comprises a further collecting device and a further conveying device; and the collecting devices and the conveying devices are each arranged in mirror image on both sides of the press belts. Preferably, the escaping material is collected on both sides of the press belts. The grit mat is mostly centered in the direction of production between the upper and lower press belt. On both sides of the grit mat or the material plate is a free area between the press belts, the size of which depends on the current spread or the required width of the material plates. Under a mirror-image arrangement on both sides of the press belts is to be understood that identically designed collecting and conveying devices are provided on both sides, but with each of the collecting device is oriented in the direction of the press nip. The mirror image is thus so far with respect to a centrally along the press belts extending and perpendicular to the press belts central plane before.

In a preferred embodiment, the press comprises a transport device in the disposal area for transferring the material conveyed by the conveying device to the opposite side of the press nip, wherein the transport device preferably comprises a conveyor belt running orthogonally to the strip running direction of the press or production direction, which is further preferably arranged below the press belts is. The collected material can be collected in the disposal area on one side of the press belts. This makes disposal more efficient. The operating costs of the press are further reduced. This is particularly advantageous if a collecting and a conveying device are provided on both sides of the press belts.

Preferably, a conveying direction of the conveying device runs parallel to a strip running direction of the press, or in the production direction. The fact that the conveyor is operated parallel to the press belts of the press, and the scattering of the spreadable material between the Press bands usually has a high uniformity to ensure a good plate quality of the material plates, the amount of the exiting material in the discharge section is approximately constant.

By a manually or automatically adjustable speed of the conveyor in relation to the speed of the press belts, a uniform material input into the conveyor could be achieved.

Further advantageously, in a cross-section orthogonal to the tape running direction of the press, the conveying device is arranged below a guide of rolling rods of the press; and / or the collecting device extends from the conveyor device at least to above the press nip. As an advantageous mounting position, a position below the roller rod guide of the press has been found for the conveyor, since a simple installation can be done here due to good accessibility. This has the advantage that the manufacturing costs of the press are kept low. Due to the fact that the catching device extends at least to above the press nip, it is achieved that no material can escape via the catcher. The contamination of the press is reduced.

In a preferred embodiment, the collecting device has a funnel-shaped in a cross section orthogonal to the strip running direction of the press deflection region, which is designed for deflecting the escaping unpressed material on the movable element of the collecting device. A funnel-shaped deflection region ensures that an efficient supply of the collected material to the movable element of the conveyor device is ensured. The required cleaning effort is kept low because the funnel-shaped design allows slipping of the collected material in the direction of the conveyor.

Further advantageously, the press comprises a preferably funnel-shaped connection point for a replaceable disposal container in the disposal area for receiving the material conveyed by the conveying device and / or by the transport device orthogonal to the conveying device. A replaceable disposal container may be, for example, a wheelbarrow, a roll container or the like, in which the collected material can be collected. By using a suitably trained connection point and an exchangeable container, a clean and fast filling of the disposal container is ensured. The contamination is kept low, so that a simple change of the disposal container and an efficient removal of the collected material are ensured.

In an advantageous embodiment, the press comprises a holding device for retaining unpressed material in the press nip between the upper and lower press belt, wherein the holding device is arranged in a downstream of a deflection of the rolling rods and a tail pulley intermediate portion of the press side of the press nip; and two arranged on both sides of the press nip flat formed end elements for completing the press nip comprises. The holding device ensures that even after the compressed grit mat has already left the discharge section and therefore the collecting device or the conveying device can no longer ensure catching of escaping unpressed material, soiling can be avoided. Also in this intermediate section, it happens occasionally that unpressed material dissolves and exits or falls out of the press nip, although the amount of escaping material is usually lower than in the unloading section of the press. In order to avoid contamination in this intermediate section, the holding device is designed to enclose the material between the press belts and to prevent material from escaping from the press nip. The press nip is closed on both sides by appropriately trained end elements. The use of the holding device with the end elements causes the operating costs are further reduced, since even in the downstream intermediate section pollution is significantly reduced. The holding device can be used to solve the problem according to the invention also in isolation, ie without collecting device and conveyor.

In a preferred embodiment, the closing elements project beyond the press nip at the top and bottom; are adapted to be attached to a spout of the press; and / or the termination elements are formed of flexible material. Due to the protrusion, it is possible that the end elements are attached to a spout of the press. Preferably, the attachment to the upper part of the termination elements. As a flexible material preferably a plastic is used. A flexible design ensures that a movement of the press belts sliding along the end elements can be compensated. Due to different effects, such as different material densities orthogonal to the running direction of the press belts, the press belts may move in a direction orthogonal to their running direction during operation of the press, so that the upper can be slightly displaced against the lower press belt. This shift will be corrected automatically. By using flexible material for the end elements, it can be ensured that in this case too, the press nip between the tapes remains closed.

In a further advantageous embodiment, the holding device comprises at least one connecting element, preferably a rope or a band, for connecting the end elements below the press belts; and preferably the connecting element has a length which is smaller than a width of the press belts, so that a force acts orthogonal to the strip running direction of the press on the press belts by the end elements. The end elements are fastened in their upper area to the spout of the press. By the connecting element, the closing elements are pulled in their lower area against each other. This ensures that the press nip is closed on both sides even when the press belts are shifted orthogonal to the direction of tape travel. By the end elements, a slight pressure on the press belts is exercised. A clean finish to prevent spillage is achieved.

In a further advantageous embodiment, the holding device comprises a two-dimensional extension, which extends the holding device in the direction of the deflection drums for the press belts and is designed to engage in the press nip. In the area of the deflection drums, the holding device can not, as before, ensure a complete closure of the press nip. In order nevertheless to achieve that no unpressed material escapes uncontrollably even in the area of the deflection drums and thus possibly contaminate the deflection drums or the area of the deflection drums, the extensively formed extension lengthens the holding device. The extension engages in the press nip. In this case, in particular, a height of the extension can be orthogonal to the strip running direction variable and correspond to the distance of the upper from the lower press belt. If this distance is increasing, the height of the extension may also increase. The extension engages in the press nip and prevents material from escaping from the press nip. The extension further reduces the contamination of the press, further reducing operating costs and reducing the risk of fire.

In an advantageous embodiment of the extension is adapted to be held by means of a clamping device in the direction of the outlet of the press under tension; and / or the extension of flexible material and having a height which is greater than a gap width of the press nip formed, so that a kinking when inserting in the press nip is made possible. By using flexible material is achieved that the extension can partially engage in the press nip, even if it is actually too large dimensioned. A standard dimension can be used for different thicknesses of the spreading material mats or material plates.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

• 1 eine schematische Darstellung eines Ausschnitts einer erfindungsgemäß ausgebildeten Presse in einer Schnittansicht parallel zu einer Bandlaufrichtung der Pressenbänder in Produktionsrichtung;
• 2 eine vergrößerte schematische Darstellung einer erfindungsgemäßen Presse im Bereich des Pressspaltes in einer Schnittansicht orthogonal zur Bandlaufrichtung;
• 3 eine schematische Darstellung einer Presse mit einer Transportvorrichtung in einer Schnittansicht orthogonal zur Bandlaufrichtung;
• 4 eine schematische Darstellung einer Haltevorrichtung in einem Zwischenabschnitt einer erfindungsgemäß ausgebildeten Presse in einer Schnittansicht entlang der Bandlaufrichtung der Presse;
• 5 eine schematische Darstellung einer erfindungsgemäßen Haltevorrichtung im Zwischenabschnitt der Presse in einer Schnittansicht orthogonal zur Bandlaufrichtung;
• 6 eine weitere Darstellung der Haltevorrichtung im Zwischenabschnitt; und
• 7 eine schematische Darstellung der Haltevorrichtung im Bereich ihres Fortsatzes in einer Schnittansicht orthogonal zur Bandlaufrichtung.

The invention will be described in more detail below with reference to some selected embodiments in conjunction with the accompanying drawings and explained. Show it:

• 1 a schematic representation of a section of an inventively designed press in a sectional view parallel to a strip running direction of the press belts in the production direction;
• 2 an enlarged schematic representation of a press according to the invention in the region of the press nip in a sectional view orthogonal to the strip running direction;
• 3 a schematic representation of a press with a transport device in a sectional view orthogonal to the strip running direction;
• 4 a schematic representation of a holding device in an intermediate portion of a press according to the invention in a sectional view along the strip running direction of the press;
• 5 a schematic representation of a holding device according to the invention in the intermediate section of the press in a sectional view orthogonal to the strip running direction;
• 6 a further illustration of the holding device in the intermediate section; and
• 7 a schematic representation of the holding device in the region of its extension in a sectional view orthogonal to the strip running direction.

In the 1 is a section of an embodiment of a press according to the invention 10 shown for the continuous production of material plates from scatterable material. In particular, OSB boards can be produced in such a press. In the press 10 is in a press nip 12 between an upper press belt 14a and a lower press belt 14b a grit mat 15 to a material plate 16 pressed. Is supplied with a binder offset spreadable material in the form of a grit mat 15 which then in the course of the press 10 to a material plate 16 is pressed.

The force required for the compression is provided by several press cylinders 18 exercised in racks 20 or frame of the press 10 are attached. For a uniform power transmission to the press belts 14a . 14b to reach, run between press cylinders 18 and press belts 14a . 14b roll bars 22 , The press belts 14a . 14b be on deflecting drums 24 diverted and back to the inlet of the press 10 guided, the rolling rods 22 are also at corresponding deflections 26 diverted and returned.

The spreading material mat 15 is passing through the press 10 with a predetermined pressure profile for the press cylinder 18 in production direction 13 applied. In addition, the grit mat is 15 Energy in the form of heat with a given temperature profile in the direction of production 13 fed. Under pressure and heat, the binder combines with the material of the spreading material mat 15 to a material plate 16 , The steam caused by the heating of the residual moisture in the grit mat 15 arises, this causes a faster heating of the inner region of the grit mat 15 , For stability and thermal conductivity are the press belts 14a . 14b made of metal.

The through the press cylinder 18 built-up pressure on the grit mat 15 will now have multiple racks 20 within the discharge section 28 slowly reduced, so that in the compressed grit mat 15 residual vapor not to form bubbles in the material plate 16 leads and can be degraded slowly.

Under the relief section 28 So it's a section of the press 10 to understand in which of the press cylinders 18 applied pressure on the spreading material mat 15 slowly being reduced again. The relief section 28 For example, the last five racks 20 with the press cylinders 18 include. In the present presentation, in particular, this discharge section 28 illustrated, wherein the discharge section 28 after the diversion 26 the rolling rods 22 and in front of the deflection drums 24 the press belts 14a . 14b an intermediate section 30 is downstream, in which the press belts 14a . 14b partially free-spanned.

Due to steam inclusions in the spreading material mat 15 can in the discharge section 28 Material from the side edge of the spreading material mat 15 from the press nip 12 is ejected laterally. Such escape of unpressed material 32 can lead to contamination of the press 10 or lead to an increased risk of fire.

This escaping unpressed material 32 is inventively in the discharge section 28 by means of a collecting device 42 (in 1 not shown) collected and then with a conveyor 34 , which are preferred in the discharge section 28 the press 10 along the press nip 12 runs into a disposal area 36 transported. The conveyor 34 thus serves to collect the collected unpressed material 32 in a controlled manner from the press 10 to move out.

As shown, the disposal area 36 at the end of the discharge section 28 the press 10 be arranged. In the disposal area 36 is usually a connection point for a disposal container 38 intended. This disposal container 38 allows an efficient removal of the collected material 32 and may be designed, for example, as a wheelbarrow or container. The disposal container 38 is with the collected unpressed material 32 filled.

According to the invention, the conveying device comprises 34 a moving element 40 with which the collected unpressed material 32 is transported. The moving element 40 stands during the transport of collected unpressed material 32 in contact with the material and causes a blockage and inflammation of the collected material 32 be avoided as far as possible. In the illustrated embodiment, the conveying device 34 as a conveyor belt device with a conveyor belt as a movable element 40 trained, with which the material 32 parallel to the strip running direction of the press 10 and in the direction of tape travel and thus in the production direction 13 is encouraged.

It is understood that in further embodiments, the conveying device 34 can also be designed in other ways. In particular, a chain conveyor with multiple segments as moving elements 40 be used.

In the 2 is an enlarged view of the press 10 in the area of the press nip 12 on one side of the spreading material mat 15 shown. To the escaping unpressed material 32 to catch, according to the invention is a collecting device 42 provided along the press nip 12 the press 10 in the discharge section 28 runs. The collecting device 42 is designed to do this from the press nip 12 escaping unpressed material 32 In particular, under catching a distraction of the escaping unpressed material 32 in the direction of the conveyor 34 to understand, so no material 32 escape uncontrollably and the press 10 can pollute.

In the illustrated embodiment, the catcher is 42 as shown funnel-shaped in cross-section. Through the catcher 42 becomes the unpressed material 32 on the conveyor 34 or on their movable element 40 directed.

The kinetic energy of the escaping unpressed material 32 can be high depending on the type of plate produced or the operating parameters used (heating of the plate and applied pressure or discharge). To compensate for this energy is on the press nip 12 facing side of the collecting device 42 a baffle 44 for compensating the kinetic energy of the escaping material 32 intended. An inner wall 46 the collecting device 42 that the baffle plate 44 is arranged opposite, prevents unpressed material 32 after catching next to the conveyor 34 or in undefined places within the press 10 lands.

The collecting device 42 extends in the illustrated embodiment to above the press nip 12 To ensure that the escaping unpressed material 32 is completely absorbed. The conveyor 34 is below the tape run of the press belts 14a . 14b or below the guide means of the rolling rods 22 the press 10 arranged. The escaping unpressed material 32 can be between the rolling bars 22 through to the conveyor 34 fall or is due to gravity directly on the conveyor 34 distracted. Both the conveyor 34 as well as the catcher 42 are usually on the frame 20 the press 10 attached.

Both the catcher 42 as well as the conveyor 34 extend along the complete discharge section 28 the press 10 or along the entire press 10 , On both sides of the press nip 12 or the spreading material mat 15 are equally catching devices 42 and conveyors 34 arranged as it is on both sides of the press nip 12 to a material leakage of unpressed material 32 can come.

In the 3 is a view of the press 10 in a section orthogonal to the direction of tape travel and production direction 13 in the disposal area 36 shown. Around the collected unpressed material 32 that from the conveyor 34 in the disposal area 36 was transported to one side of the press 10 can optionally transfer a transport device 48 be provided.

The transport device 48 promotes the unpressed material 32 from both sides of the press 10 to a common disposal container 38 , By using the transport device 48 Consequently, it is achieved that the unpressed material to be disposed of 32 only on one side of the press 10 must be removed so that a common disposal container 38 for that on both sides of the press nip 12 collected material 32 sufficient. This requires a simple and efficient disposal of the collected material 32 , The transport device 48 may preferably also be designed as a conveyor belt.

In the 4 and 5 is the intermediate section 30 the press 10 between the diversion 26 the rolling rods 22 and the deflection drums 24 the press belts 14a . 14b in a side view ( 4 ) as well as in a sectional view ( 5 ) at the marked position s1 orthogonal to the tape running direction. After the discharge in the relief section 28 become the rolling rods 22 turned up and down and returned. In this intermediate section 30 is a holding device according to the invention 50 provided, preferably on the spout 21 the press 10 in which also the tail pulleys 24 the press belts 14a . 14b are integrated, fixed. The spout 21 is in 1 indicated by dashed lines.

The holding device 50 has two sides of the press nip 12 arranged finishing elements 52 on top of the press nip 12 complete on both sides. By completion, it is understood that the termination elements 52 the press nip on both sides of the pressed grit mat inside 15 close. This will prevent further unpressed material 32 , which is still in loose form in the press nip 12 is located and not in the discharge section 28 the press 10 was ejected in the press nip 12 remains. As a result, the pollution is also in the intermediate section 30 minimized.

The final elements 52 are preferably formed of flexible, yet stiff material and project beyond the press nip 12 both up and down. In particular, a plastic with appropriate flexibility can be used, which is sufficiently stable, not by the at the end elements 52 along sliding press belts 14a . 14b to be damaged.

Below the press belts 14a . 14b are the final elements 52 by means of a connecting element 54 connected. This connecting element 54 may be formed, for example, as a rope or band. Through the connecting element 54 a tensile force is exerted by the end elements 52 from both sides against the upper and lower press belt 14a . 14b be pressed. This will be a lateral conclusion of the press nip 12 ensured. The final elements 52 are on their tops over appropriate fasteners 56 with the spout 21 the press 10 connected and at their lower edges via the connecting element 54 connected with each other. It is, so to speak, a pressure on both sides of the press belts 14a . 14b exercised.

Preferably, along the termination elements 52 several fasteners 54 provided as uniform as possible pressure distribution of the end elements 52 on the press belts 14a . 14b to reach.

It is understood that the holding device 50 in principle, independent of the collecting device 42 and the conveyor 34 can be used

In the 6 and 7 is again the intermediate section 30 the press 10 between the diversion 26 the rolling rods 22 and the deflection drums 24 the press belts 14a . 14b in a side view ( 6 ) as well as in a sectional view ( 7 ) at the position s2 orthogonal to the tape running direction.

In particular, an extension is shown 58 on the holding device 50 holding the holding device 50 in the direction of the deflection drums 24 the press belts 14a . 14b extended. Preferably, the extension 58 also made of material that is both flexible but stiff.

The extension 58 is designed to be between the press belts 14a . 14b to get lost. This is achieved in the example shown in that the extension 58 at its the holding device 50 opposite side is kept under tension. For this purpose, a clamping device 60 intended. For example, attaching to one at the outlet spreader 21 the press 10 fastened spring done (not shown).

The extension 58 runs between upper and lower press belt 14a . 14b , By using a flexible material, such as hard plastic, it is achieved that the extension 58 between the press belts 14a . 14b may be partially bent or corrugated, so that use at different gap widths of the press nip 12 is possible. Depending on the thickness of the material plate to be produced 16 is the gap width of the press nip 12 differently. In addition, it dissolves shortly before the deflection drums 24 the press belts 14a . 14b the upper press belt 14a from the material plate 16 and goes in the direction of an upper tail pulley 24 guided. Also at this point allows a flexible design of the extension 58 therefore, that the press nip 12 completely finished, so no material 32 can escape.

It is possible but not mandatory that the extension 58 is wedge-shaped in profile, as in the 5 indicated.

The invention has been fully described and explained with reference to the drawings and the description. The description and explanation are to be considered as illustrative and not restrictive. The invention is not limited to the disclosed embodiments. Other embodiments or variations will become apparent to those skilled in the art upon use of the present invention and upon a thorough analysis of the drawings, the disclosure, and the following claims.

In the claims, the words "comprise" and "with" do not exclude the presence of further elements or steps. The undefined article "a" or "an" does not exclude the presence of a plurality. A single element or unit may perform the functions of several of the units recited in the claims. The mere mention of some measures in several different dependent claims is not to be understood that a combination of these measures can not be used equally advantageous. Reference signs in the claims are not intended to be limiting.

LIST OF REFERENCE NUMBERS

10

Press

12

press nip

13

production direction

14a, 14b

press belt

15

grit mat

16

Material board

18

press cylinder

20

frame

21

Discontinued Traverse

22

roll bars

24

Umlenktrommel

26

redirection

28

relief section

30

intermediate section

32

material

34

conveyor

36

disposal area

38

disposal containers

40

element

42

catcher

44

baffle

46

inner wall

48

transport device

50

holder

52

termination element

54

connecting element

56

fastener

58

extension

60

jig

Claims (14)

Press (10) for the continuous production of material plates (16) from scatterable material, in particular for the production of chip, fiber, OSB, insulating and / or plastic plates with: a collecting device (42) for collecting from a press nip (12) between press belts (14a, 14b) of the press (10) escaping unpressed material (32); and a conveying device (34) for conveying the material (32) collected by the collecting device (42) into a disposal area (36) of the press (10), wherein the collecting device (42) and the conveying device (34) travel along the press nip (12); preferably in a discharge section (28) of the press (10), are arranged; the collecting device (42) is designed to deflect the collected material (32) in the direction of the conveying device (34); and the conveyor (34) comprises a movable element (40) for transporting the collected material (32). Press (10) after Claim 1 , wherein the conveying device (34) is designed as a conveyor belt device and as a movable element (40) comprises a conveyor belt. Press (10) according to one of the preceding claims, wherein the collecting device (42) comprises a baffle (44) facing the press nip (12) for receiving a kinetic energy of the escaping unpressed material (32). Press (10) according to any one of the preceding claims, wherein the press (10) comprises a further collecting device (42) and a further conveying device (34); and the collecting devices (42) and the conveying devices (34) are each arranged in mirror image on both sides of the press belts (14a, 14b). Press (10) according to one of the preceding claims, with a transport device (48) in the disposal area (36) for transferring the material (32) conveyed by the conveyor (34) to the opposite side of the press nip (12), the transport device (48 ) preferably comprises an orthogonal to the strip running direction of the press (10) extending conveyor belt, which is further preferably below the press belts (14a, 14b) is arranged. Press (10) according to one of the preceding claims, wherein a conveying direction of the conveying device (34) runs parallel to a strip running direction of the press (10). Press (10) according to one of the preceding claims, wherein in a cross section orthogonal to the strip running direction of the press (10), the conveying device (34) below a guide of rolling rods (22) of the press (10) is arranged; and / or the collecting device (42) extends from the conveying device (34) at least to above the press nip (12). A press (10) according to any one of the preceding claims, wherein the catcher (42) has a funnel-shaped deflection region formed in a cross section orthogonal to the direction of travel of the press (10), for deflecting the escaping unpressed material (32) onto the movable element (40). the collecting device (42) is formed. Press (10) according to one of the preceding claims, with a preferably funnel-shaped connection point for a replaceable disposal container (38) in the disposal area (36) for receiving the from the conveyor (34) and / or from the conveyor (34) orthogonal transport device ( 48) conveyed material (32). A press (10) according to any one of the preceding claims, including a retainer (50) for retaining unpressed material (32) in the press nip (12) between the upper and lower press belts (14a, 14b), the retainer (50) being deflected (26) of the rolling rods (22) downstream and a deflection drum (24) of the press belts (14a, 14b) upstream intermediate portion (30) of the press (10) is arranged laterally of the press nip (12); and two on both sides of the press nip (12) arranged flat formed end elements (52) for completing the press nip (12). Press (10) after Claim 10 wherein the end elements (52) project beyond the press nip (12) above and below; are adapted to be attached to a spout (21) of the press (10) become; and / or formed of flexible material. Press (10) after one of the Claims 10 to 11 wherein the holding device (50) comprises at least one connecting element (54), preferably a cable or a strap, for connecting the end elements (52) below the press belts (14a, 14b); and the connecting element (54) preferably has a length which is smaller than a width of the press belts (14a, 14b) such that a force perpendicular to the direction of travel of the press (10) on the press belts (14a, 14b) is provided by the end elements (52). acts. Press (10) after one of the Claims 10 to 12 wherein the holding device (50) comprises a flat extension (58) which extends the holding device (50) in the direction of the deflection drums (24) of the press belts (14a, 14b) and is designed to engage in the press nip (12). Press (10) after Claim 13 wherein the extension (58) is adapted to be held under tension by means of a tensioning device (60) in the direction of the outlet of the press (10); and / or of flexible material and having a height that is greater than a gap width of the press nip (12) is formed, so that a kinking when inserting into the press nip (12) is made possible.

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