WO2023041754A2 - Anlage und verfahren zur kontinuerlichen herstellung von werkstoffplatten sowie eine testvorrichtung und testverfahren - Google Patents
Anlage und verfahren zur kontinuerlichen herstellung von werkstoffplatten sowie eine testvorrichtung und testverfahren Download PDFInfo
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- WO2023041754A2 WO2023041754A2 PCT/EP2022/075871 EP2022075871W WO2023041754A2 WO 2023041754 A2 WO2023041754 A2 WO 2023041754A2 EP 2022075871 W EP2022075871 W EP 2022075871W WO 2023041754 A2 WO2023041754 A2 WO 2023041754A2
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- WO
- WIPO (PCT)
- Prior art keywords
- laboratory
- test
- panel
- plate
- laboratory plate
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 159
- 238000012360 testing method Methods 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 47
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000009417 prefabrication Methods 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 claims description 19
- 230000001066 destructive effect Effects 0.000 claims description 12
- 238000004154 testing of material Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 11
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- 238000010924 continuous production Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
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- 238000004378 air conditioning Methods 0.000 claims description 3
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- 239000012634 fragment Substances 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 description 6
- 229920002522 Wood fibre Polymers 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000002025 wood fiber Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000011093 chipboard Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000003908 quality control method Methods 0.000 description 4
- 238000012549 training Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
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- 230000006835 compression Effects 0.000 description 3
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- 238000001816 cooling Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/18—Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut
- B23D45/20—Flying sawing machines, the saw carrier of which is reciprocated in a guide and moves with the travelling stock during sawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/46—Wood
Definitions
- the invention relates to a plant for the continuous production of material panels with a continuously operating press according to the preamble of patent claim 1 .
- the invention also relates to a method for determining at least one material parameter in the course of the production of material panels in a plant according to the preamble of patent claim 13.
- the invention relates to a test device and a test method for a material panel according to the preambles of patent claims 25 and 26.
- the production of material panels by pressing free-flowing or scattered material in calender, cycle or double belt presses is known prior art.
- Mixtures of lignocellulose-containing materials such as wood, woody plants or annual plants are scattered with or without binders in one or more layers and cured with pressure and/or heat to form stable panels.
- the material panels can certainly be pliable or flexible (thin MDF panels made of fibres), but still have a certain inherent rigidity when subjected to pressure.
- EP 0 841 554 A2 and US 5 583 298 A show non-destructive bending tests for finished panels or a string of panels.
- the disadvantage of the EP is that the testing device cannot be adapted to different formats, or can only be adapted with great difficulty. Plates can slip through the different openings and block the system. It is also problematic that plates which are still hot react unfavorably to bending immediately after the press and this may be taken over plastically. It also cannot be ruled out that a large number of chemical compounds will break down again while the product is still warm and that the quality per se will be deteriorated by the test scheme.
- quality control In today's practice, despite the above-described options in the prior art, with only plastically deformable material boards, such as HDF, MDF, OSB, chipboard, quality control consists in a laboratory cut being made and predefined quality parameters being determined later. These include physical properties such as flexural, transverse tensile and lifting strength, as well as formaldehyde emissions. As a rule, quality control only takes place one to three times in 24 hours in an internal and/or external certified laboratory for materials testing. There are now individual devices for laboratory work that attempt to increase the frequency of test runs and relieve laboratory technicians of documentation and data transmission work. Nevertheless, the standardized test procedures are very complex and are themselves subject to strict documentation requirements and quality controls.
- the object of the present invention is to create a device and a method that allow fast, direct testing and the highest possible quality testing during or alongside production.
- a test method is to be created which, through a simple test, can provide conclusions about the bending and transverse tensile strength and possibly also the density profile.
- this device and the method to support the training of a self-learning quality prediction model in which the quality data frequency can be increased during production and the training of self-learning artificial intelligences can thus be optimized.
- test device and a test method are to be created with which it is possible to draw conclusions about the properties and/or the quality of a material panel in a simple manner.
- a generic system from which the invention is based, relates to a system for the continuous production of material panels with a continuously operating press, the system at least comprising a prefabrication for creating a pressing material mat suitable for pressing, a continuously operating press for pressing the pressing material mat into a material panel strand and a finishing line for processing the strand of material panels emerging from the press, with at least one diagonal saw for dividing the strand of material panels into material panels, a stacking device for the material panels and a transport device connecting them being arranged in the finishing line, with a lock for separating a laboratory panel being arranged on the transport device is,
- the object of the invention is achieved in that the lock is operatively connected to a test unit and a test device for material testing of the laboratory plate is arranged in the test unit.
- the invention can preferably be used in the production of solid fiberboard, hardboard, medium-density fiberboard (MDF), medium-hard fiberboard, coarse particle board (OSB), preferably for furniture construction, formwork, load-bearing trades and the like.
- MDF medium-density fiberboard
- OSB coarse particle board
- the invention is therefore preferably used in material panels which have a bulk density of more than 250 kg/m 3 after pressing. In this case, the material panels cannot have a completely flat rigidity, but there should be a certain compressive strength with appropriate support.
- rigid chipboard or OSB boards should be included, as well as flexible but pressure-resistant MDF boards, traditionally used as thin back panels for furniture.
- the material tests to be carried out which according to the invention can be carried out in the test unit, preferably relate to one or more of the following properties of a material panel: lifting strength (N/mm 2 ), flat flexural modulus (N/mm 2 ), flexural E modulus upright (N/mm 2 ), flexural strength flat (N/mm 2 ), flexural strength upright (N/mm 2 ), block shear strength (N/mm 2 ), Brinell hardness, compressive modulus of elasticity in the panel plane (N/mm 2 ), compressive strength in the plane of the board (N/mm 2 ), transverse tensile strength dry (N/mm 2 ), bulk density (kg/m 3 ), shear strength perpendicular to the plane of the board (N/mm 2 ), tensile modulus of elasticity in the plane of the board (N/ mm 2 ) and/or in-plane tensile strength (N/mm 2 ).
- Using the invention in combination with a quality prediction model brings further advantages. Due to the higher quality data frequency, the training of a neural network or an AI can be accelerated and the accuracy of the quality prediction model can be increased. This enables real-time adjustment of the production parameters and optimization of the production process and forms the basis for the vision of a "self-propelled and self-optimizing system".
- the measurement methods and their results do not necessarily have to meet the specified or standardized quality requirements for material panels, but are preferably sufficient to the expected quality of the material panels currently produced, especially with regard to the parameters currently used of the previous plant parts. Especially in the case of self-learning systems in a production plant, the shortening of the feedback time for the results to be expected is advantageous.
- At least one evaluation unit is preferably operatively connected to the testing device, which is suitable for generating a material parameter of the laboratory panel and/or the material panel produced in real time from the measured values generated by the testing device.
- the material panels produced and the laboratory panel to be tested are preferably provided with a time stamp in order to be able to assign the measured values of the laboratory panel to the material panels produced in a correspondingly timely manner.
- the stacks of material panels produced can each be combined with a laboratory panel and associated rapid quality check and stored digitally.
- the evaluation unit is connected to the controller of the system for visualizing the material parameters, for example in order to inform a system operator or a local entity, which may be electronic. Furthermore, it can be useful to connect the evaluation unit to databases or computing units to determine the material parameters of the material panels (produced close to the laboratory panel) or to transmit data.
- the evaluation unit with a preferably self-learning system for optimizing or adjusting production processes of the installation is particularly preferred connected. In this case, the increased frequency of quality data compared to the prior art can be used to improve the training of a self-learning electronic instance.
- Means for positioning and/or clamping the laboratory plate are preferably arranged in the test unit. This promotes the standardization and comparability of the measurement results.
- Test devices for non-destructive and/or destructive material testing can be arranged in the test unit.
- Non-destructive testing methods are also known from the prior art within the transport device of the final production, for example moisture, temperature or radiation measurements for the basis weight.
- some measuring methods are very sensitive and can best be carried out on a stationary object, so that non-destructive testing methods can also be used in the test unit.
- At least a drilling device, a bending device, a pressure device for the surfaces and/or the narrow sides, a screw insertion and extraction device, and/or a (pressing) breaking device can be arranged as the testing device.
- a pressure device is also understood to mean when machine elements, for example mandrels, are preferably moved in the direction of the narrow sides, and the pressure is preferably measured over a bend, a certain penetration depth.
- a fracture and/or the associated drop in pressure can also be determined here, in particular in order to determine a parameter of the material panel or the laboratory panel from this.
- testing devices are scanned several times across the width of the laboratory panel or the material panel strand are arranged in order to be able to measure them, for example, in the case of desired different densities or properties across the width. These can also be arranged several times along the length, that is to say along the previous long sides of the strand of material panels.
- This multiple arrangement can also mean that several spaced test locations can be provided for a test device in a consecutive test sample.
- costly test devices it may make sense to arrange them so that they can be moved in the test unit in order to be able to carry out the material tests in series at different locations on the laboratory plate and/or to adapt them to different geometries of the manufactured product and thus to the size of the laboratory plate.
- the laboratory plate can be slidably arranged in the test unit in order to be able to engage stationary test devices at different points on the laboratory plate.
- At least one dome that can be driven into one of the narrow sides of the laboratory plate can be arranged as the testing device, with the dome preferably having a conical or pyramid-shaped tip on the side of the laboratory plate.
- the person skilled in the art will know how to use the necessary measuring sensors for the force curve, the displacement and the like as well as the necessary control technology and electronic components for the processing based on his experience in measuring technology.
- the mandrel is preferably moved up to a certain penetration depth and/or up to a fracture reaction on the surface or the laboratory plate; the depth of penetration up to breakage or the forces proportional to the depth of penetration/breakage in the case of the laboratory plate are measured and used to determine the material parameters of the material plate, based on empirical values in tables or Z-system conversion models.
- at least one, preferably standardized, pressure body acting on the surface side of the laboratory plate can be arranged as a testing device, which is suitable for bending the laboratory plate, preferably to the point of breaking, with at least one support 20 being arranged opposite the element.
- the test unit can be operatively connected or automated to one or more other laboratory systems, preferably modular for different types of production and test. It may well make sense to automate the complex laboratory activities that include air conditioning and/or cutting and preparing test specimens from a laboratory panel. Depending on the effort, however, it may be sufficient to just cut out the test specimens from the laboratory panel and, if necessary, to condition them, so that staff is able to hand over several prepared test specimens, for example per hour, to a laboratory unit for evaluation.
- means for preparing the laboratory panel which would preferably be means for cutting, for air conditioning and/or for marking the laboratory panel and/or the blank.
- markings can help to simplify the documentation of the measured values.
- the test unit is preferably arranged below the transport device. In order to save on actuators that require maintenance, it can make sense to transfer the laboratory plate, starting from the lock 5, into the test unit mainly by gravity.
- the test unit can also be phased be designed so that the laboratory plate can simply slide from one stop to the next after a test procedure.
- test unit or a test area is arranged in an operatively connected manner with a disposal facility for the disposal of fragments or the laboratory plate. Disposal can be through a plate crusher or plate waste container.
- the lock is directly connected to the diagonal saw or up to and including the stacker, preferably for the removal of a laboratory panel that is geometrically smaller than the material panels to be produced.
- the laboratory plate is not separated until later in the final production or that one laboratory plate is generated for each stack.
- a stack corresponds to a stacking plate with a height of 2 m and approximately 25 m 3 .
- the cooling gradient could differ compared to the real material panel production. It should be noted that a "still relatively warm" material panel is being tested. The results from the materials test may therefore have to be provided with a correction factor that reflects this difference. This could also be used if the plate is tested warmer than the ambient temperature.
- binders which have sufficient adhesive forces compared to the vapor pressure within the material panel after the press, but which harden after or fully harden in the course of artificial aging or only later, usually after stacking.
- a test unit for quick and uncomplicated test methods on the laboratory plate is provided in the system, with the areas of the laboratory plate already damaged by the test method then being separated, a standardized test specimen preferably being cut out and issued for further use in a laboratory system .
- a suitable laboratory system is most preferably arranged in an automated, operatively connected manner. Provision can be made for the laboratory plates, parts thereof or a standardized test specimen to be automatically transferred to the laboratory system or to be prepared beforehand in an automated manner in order to meet the usual standards for materials testing.
- the tested laboratory plate is particularly preferably prepared after the test unit, for example damaged areas are cut off or the laboratory plate is cut to size.
- the resulting test specimens can then be air-conditioned, so that time can be saved here for later use in a laboratory.
- a mandrel In a penetration fracture test, a mandrel is driven into the material panel via one of the four narrow sides, parallel to the two surface sides, the distance after contact until fracture and/or the force curve until fracture is measured, recorded and evaluated.
- the laboratory panel is clamped on one side or held by two supports.
- the distance for the one-sided support or between the two supports should be specified and comparable, especially for different panel types or thicknesses.
- the method is generically based on a method for determining at least one material parameter in the course of the production of material panels in a plant in which at least one prefabrication for creating a mat of pressed material suitable for pressing, a continuously operating press and a finishing line for processing one of the the material panel strand emerging from the press is present, with the material panel strand being divided into material panels in the final production at least by a diagonal saw, the material panels stacked with a stacking device and the material panels being transported from the press through the diagonal saw to the stacking device with a transport device.
- the invention for the method is that in the final production, a laboratory panel is separated through a lock, fed to a test unit and subjected to at least one material test in the test unit with a test device to determine a measured value and/or to determine a material parameter.
- the method according to the invention also enables hard material panels, which may have to be tested destructively, to provide early high-quality feedback on the existing quality, in that a laboratory panel can be tested ad hoc in the final production area.
- the invention has surprisingly recognized that destructive fracture analysis, in particular over the narrow sides, provides high-quality and comparable measurement results that can be transferred to the material panels produced in real time.
- the laboratory plate is positioned and/or clamped in the test unit, in particular if it is subjected to a non-destructive and/or destructive material test in the test unit.
- a hole is drilled into the laboratory plate to determine the necessary current or torque.
- the laboratory plate is bent up to or beyond the break.
- a screw preferably a self-tapping screw, can be inserted into the laboratory plate and, if necessary, pulled out again to determine the pull-out forces. Impressions to be measured can be made on the surfaces (surface side) of the laboratory plate using standard bodies and/or standard forces, which are evaluated and/or the breaking strength, preferably of the middle layer, is determined.
- a mandrel preferably with a conical or pyramidal tip, operatively connected to a corresponding measuring transducer is inserted into a narrow side of the test specimen to a predetermined depth and/or until breaking.
- the measured values over the time/displacement process and the necessary pressure are recorded and evaluated. Preference is given to recording tactile, audio-technical, visual, sound or vibration and the necessary pressure over time.
- Laboratory panel calculated in an evaluation unit material parameters of the material panels produced close to the laboratory panel and/or converted via tables of values, preferably based on empirical values, to material parameters of the material panel produced in a timely manner.
- the values of the material panels produced can be correlated and/or calculated, in particular using data tables or other empirical values from previous productions, for which feedback from the laboratory is available for comparison.
- a laboratory panel in the test station and a laboratory panel in the laboratory system are tested alternately or in a predetermined grid.
- the laboratory plate is preferably automatically air-conditioned for the laboratory system, marked and/or divided into test specimens to specified dimensions. It can be advantageous if they are automatically transferred to the laboratory system and processed or checked there.
- the laboratory plate can be handed over to documentation and/or disposal after it has been used in the test unit and/or in the laboratory system. This can also only apply to individual parts that have arisen during the cutting or during the breakage tests.
- An evaluation unit can preferably forward data to the controller of the system for visualizing the material parameters and/or to arithmetic units or databases for comparing or determining the material parameters of the laboratory panel and/or the material panels produced in a timely manner.
- the data is particularly preferably transferred to a preferably self-learning system for optimizing or setting production parameters of the installation. Provision is particularly preferably made for the laboratory panel to be automatically cut to the test specimen size corresponding to the standard for the corresponding material test before and/or in the test unit or laboratory system.
- test methods and devices presented in the invention described above can also be used sensibly and commercially independently of the production of material panels. For example, in the production of cycle presses or quality control for customers of suppliers of material panels.
- a support for a material panel is arranged in the test device and at least one dome that can be driven into one of the narrow sides is arranged as a test device, with the dome having a point on the side of the material panel, preferably conical or pyramid-shaped, and/or as a test device at least one on one surface side of the Laboratory plate-acting, preferably standardized, pressure body is arranged, which bends the material plate, preferably to the point of fracture, with at least one displacement, time and/or force transducer being arranged in the test device, preferably in operative connection with an evaluation unit.
- a possible test method for material testing of a material panel with two flat sides and four narrow sides using a test device is characterized in that a material panel is recorded in a test device is placed on a support and a mandrel is driven into at least one of the narrow sides of the laboratory plate by a testing device, with the mandrel preferably having a conical or pyramid-shaped tip on the side of the laboratory plate and/or by a testing device against at least one surface side of the laboratory plate, a preferably normalized one , Pressure body is moved, which is suitable for bending the laboratory plate, preferably until it breaks, with the path, time and/or force being registered in the test device and preferably evaluated with an evaluation unit.
- the dome for driving into the narrow sides is preferably narrower than the thickness of the narrow side and should particularly preferably be narrower than a middle layer of the material panel.
- the “tip” of the dome other geometries, in particular non-pointed ones, can also be provided, since the word “pointed” per se refers to the penetration side of the dome and is not intended to directly express the geometric shape.
- FIG. 1 shows a schematic sectional side view of part of a system from the press to the stacking device with a lock and a test unit for material testing for a laboratory plate and beyond
- FIG. 2 shows part of the test unit according to FIG. 1 in a schematic plan view.
- Figure 1 shows a schematic sectional view from the side with part of a system from the press 1 to the stacking device 17 with a lock 5 and a test unit 6 for material testing of a laboratory plate 7 separated from the transport device 11.
- the conventional and known from the prior art Preparation of the material and production of a pressed material mat were not shown due to a lack of relevance.
- the strand of material panels 2 is transferred to a transport device 11 .
- the material panels 4 After the material panels 4 have been separated from the material panel strand 2, the material panels are stacked in a stacking device 17 and stored in stacks.
- the area from press 1 to the stacking device is commonly understood as finishing 10.
- the diagonal saw 3 will create a laboratory panel 7 which is usually shorter than the material panels 4 to be stacked.
- some transport rollers double arrow
- the laboratory plate 7 then reaches a stop 22 and is subjected to a material test by one or more test devices 8, 9. It is advantageous if the laboratory plate 7 is positioned and/or clamped here. After the test, the laboratory plate 7, which is usually partially destroyed, can be transferred directly to disposal 16, for example by the stop 22 swinging out.
- a transport device can swing in and transfer the laboratory plate or parts thereof to a processing unit 15 and/or a laboratory system 14 .
- the Testing area 19 with the test unit 6 is mainly located below the transport device 11, but can also be formed in parts on the side or above corresponding conveyor devices.
- FIG. 1 A plan view of an exemplary test unit 6 is shown in FIG.
- the width of the laboratory plate is supported on the supports 20.
- Schematic test devices 8 are shown on the upper and right narrow side, which can insert a mandrel 13 into the laboratory plate 7 via actuators (double arrows) that are not shown, preferably until the surface side/surface of the laboratory plate breaks. These breaks are local and the measured values or the pressure profile over time can be mapped to the breaking strength of the laboratory plate 7 or a material plate 4 .
- test devices 9 are arranged, which can either be mounted on one side on the left over the cantilever arm of section 18 and carry out a bending test, preferably up to breakage, or a breakage test by introducing forces onto the surface between two supports 20 along section 18.
- the forces are usually introduced into the laboratory plate 7 by a standardized pressure body 21 .
- the fracture results in a plastic deformation of at least part of the laboratory panel 7. It may be useful to provide an ejection device that can hand over the destroyed laboratory panel 7 to disposal 16.
- the active connection of the evaluation unit 12 to the individual machine elements or test devices 8, 9 of the test unit 6 is also shown schematically.
- the evaluation unit will be connected, for example, to press 1 or to the control station of the plant in order to display the measurement results there or to control production accordingly.
- the data from the evaluation unit is particularly preferably used to make suggestions for improving production 1620 to the operating personnel of the plant. List of references 1620:
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Abstract
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DE102021004704.4A DE102021004704A1 (de) | 2021-09-17 | 2021-09-17 | Anlage und Verfahren zur kontinuerlichen Herstellung von Werkstoffplatten sowie eine Testvorrichtung und Testverfahren zur Ermittlung von zumindest einer Werkstoffkenngrösse |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5583298A (en) | 1995-04-24 | 1996-12-10 | The United States Of America As Represented By The Secretary Of The Army | Method and apparatus for on-line testing of pultruded stock material |
EP0825438A2 (de) | 1996-08-20 | 1998-02-25 | Isover Saint-Gobain | Verfahren und Vorrichtung zum Messen der Druckfestigkeit, der Elastizität, Härte, Dicke oder ähnliche Eigenschaft einer laufenden Materialbahn, wie eine Mineralwollebahn |
EP0841554A2 (de) | 1996-11-12 | 1998-05-13 | Lars Bach | Verfahren und Vorrichtung zur on-line Bestimmung von Steifheit oder Festigkeit von Platten, insbesondere Holzplatten |
DE102016015519A1 (de) | 2016-12-23 | 2018-06-28 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Vorrichtung und Verfahren zur Bestimmung der Festigkeit von Holzfaserdämmplatten |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4104822A1 (de) * | 1991-02-16 | 1992-08-20 | Telefunken Systemtechnik | Pruefvorrichtung zur durchfuehrung von 4-punkt-biegewechselbeanspruchungsversuchen |
SE9502611D0 (sv) * | 1995-07-14 | 1995-07-14 | Casco Nobel Ab | Prediction of the properties of board |
DE10002801A1 (de) * | 2000-01-24 | 2001-07-26 | Dieffenbacher Gmbh Maschf | Verfahren und Vorrichtung zum Formattrennen einer Plattenbahn |
DE102006059791A1 (de) * | 2006-12-15 | 2008-06-19 | Areva Np Gmbh | Verfahren und Vorrichtung zum Bestimmen einer Anfälligkeit eines Werkstoffes gegen dynamische Reckalterung |
DE102019114035A1 (de) * | 2019-05-26 | 2020-11-26 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Verfahren zur Bestimmung der Konzentration eines flüchtigen Stoffes, Emissions-Überwachungsvorrichtung und Anlage zur Produktion von Werkstücken |
DE202020100886U1 (de) * | 2020-02-18 | 2021-05-25 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Vorrichtung zur Prozessoptimierung einer Produktionsanlage |
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2021
- 2021-09-17 DE DE102021004704.4A patent/DE102021004704A1/de active Pending
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5583298A (en) | 1995-04-24 | 1996-12-10 | The United States Of America As Represented By The Secretary Of The Army | Method and apparatus for on-line testing of pultruded stock material |
EP0825438A2 (de) | 1996-08-20 | 1998-02-25 | Isover Saint-Gobain | Verfahren und Vorrichtung zum Messen der Druckfestigkeit, der Elastizität, Härte, Dicke oder ähnliche Eigenschaft einer laufenden Materialbahn, wie eine Mineralwollebahn |
EP0841554A2 (de) | 1996-11-12 | 1998-05-13 | Lars Bach | Verfahren und Vorrichtung zur on-line Bestimmung von Steifheit oder Festigkeit von Platten, insbesondere Holzplatten |
DE102016015519A1 (de) | 2016-12-23 | 2018-06-28 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Vorrichtung und Verfahren zur Bestimmung der Festigkeit von Holzfaserdämmplatten |
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DE102021004704A1 (de) | 2023-03-23 |
WO2023041754A3 (de) | 2023-06-29 |
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