Segmented scalper

Abstract

The invention relates to a scalper roller arrangement for levelling bulk material quantities lying on a conveyor belt, the scalper roller arrangement comprising at least one scalper roller, which is arranged above and substantially transversely to the orientation of the conveyor belt, wherein: the scalper roller can be driven by a drive; the scalper roller is formed over its longitudinal extent, at least on its surface, by a plurality of scalper roller portions, and the distance between the surface of each scalper roller portion and the conveyor belt is variable independently of other scalper roller portions; each scalper roller portion is provided, on the portions thereof which come into contact with the bulk material quantity, with removal elements for the bulk material; each of the scalper roller portions is coupled to an axially variable connecting element; a shaft element is arranged between axially variable connecting elements which are in each case adjacent; one end of a supporting arm is arranged on each shaft element and the other end is arranged on a support, in each case in a rotationally mounted manner; a lifting-level adjusting device is arranged on one supporting arm in each case.

Description

[0001] Title: Segmented Scalper

[0002] Description

[0003] The invention relates to a scalper roller arrangement and the use of an axis-variable connecting element in a scalper roller arrangement.

[0004] A variety of scalper roller arrangements are known from the prior art.

[0005] Problematic aspects of scalper roller arrangements known from the prior art for leveling quantities of bulk material lying on a conveyor belt, especially for leveling quantities of wood bulk material for the production of a wooden board, are the high energy consumption, the high susceptibility to failure and malfunctions, and especially the high maintenance intensity, for example maintenance sequences and long downtimes, especially production downtimes and production stoppages.

[0006] The invention is therefore based on the objective of providing a scalper roller arrangement that improves the distribution, in particular the cross-sectional profile, for example the density, especially the basis weight cross-sectional profile, and in particular the homogeneity of a material mat, especially a spreading mat, for example a bulk material mat. Furthermore, inaccuracies arising from the spreading process, especially spreading errors, should be corrected completely or partially, and in particular compensated for better, especially faster and more accurately. Moreover, the susceptibility to failure, especially malfunctions, should be improved, and maintenance, especially repair, should be improved, for example, simplified.

[0007] To solve this problem, the invention teaches a scalper roller arrangement, in particular a scalper roller device for leveling quantities of bulk material lying on a conveyor belt, in particular for leveling quantities of bulk wood material for the production of a wood panel, in particular a wood-based panel, comprising at least one scalper roller which is arranged substantially transversely, in particular approximately transversely to the orientation of the conveyor belt above it, in particular on the side of the bulk material lying on a conveyor belt facing away from the conveyor belt, wherein the scalper roller is equipped with a

[0008] a drive, in particular a scalper roller drive, for example an external drive, for example an external drive, in particular a shaft drive, and wherein the scalper roller is formed over its longitudinal extent at least on its surface from several scalper roller sections, in particular scalper roller segments, and wherein the distance between the surface of each scalper roller section and the conveyor belt is variable independently of other scalper roller sections, wherein each scalper roller section is provided on its sections that come into contact with the bulk material with removal elements for the bulk material, wherein the scalper roller sections are each coupled with an axis-variable connecting element, in particular connected in a torque-transmitting manner, for example in a rotation-effective manner, for example in a drive-effective manner,wherein a shaft element is arranged between each adjacent axis-variable connecting elements, in particular connecting adjacent axis-variable connecting elements in a drive-effective manner, wherein a support arm is arranged on one side on each shaft element and on the other side on a support, in particular a torque compensation support, in each case rotatably mounted, for example, rotatably mounted, wherein a lifting level adjustment device is arranged on each support arm, in particular for level adjustment.

[0009] In the context of the present invention, an axis-variable connecting element is understood to be a connecting element that connects two radially offset shafts, in particular shafts that are not aligned with each other, and in particular connects them in a torque-transmitting manner, for example, in a drive-effective manner. For example, an axis-variable connecting element is selected from a group consisting of an adjustable shaft coupling, in particular a parallel crank coupling, for example a Schmidt coupling, a cardan coupling, a compensator, a bellows, an elastomer coupling, or a combination thereof.

[0010] Within the scope of the present invention, a stroke level adjustment device is understood to be a device with which the stroke, in particular the distance between the surface of each scalper roller section and the conveyor belt, and in particular of a quantity of bulk material resting on the conveyor belt, can be adjusted, in particular changed, for example leveled, independently of other scalper roller sections. For example, a stroke level adjustment device is selected from P 2024096 DE Description 2025-12-11

[0011] a group consisting of a mechanical adjusting device, a pneumatic adjusting device, a hydraulic adjusting device, an electrical adjusting device, for example electric linear motors or a combination thereof.

[0012] An advantage of the present invention is a long service life, particularly a long operating time, for example of the scalper roller. Further advantages of the invention include reduced downtime / maintenance times and reduced production downtime. Another advantage of the invention is low temperature sensitivity, particularly a low risk of overheating, for example of the drive. High energy efficiency and low power consumption, especially of the drive, are also advantageous.

[0013] A further advantage of the present invention is simple, uncomplicated maintenance, in particular replacement time, for example when changing tools, in particular changing the abrasive element, for example in case of wear and / or changing the product / type, for example of a wooden board, in particular a wood-based panel.

[0014] According to a further embodiment of the invention, the outer diameter of the scalper roller, with respect to the radial offset between the scalper roller sections, has a ratio in the range of 1.5 to 3.5, preferably in the range of 1.7 to 3.0, particularly preferably in the range of 2.0 to 2.8.

[0015] Within the scope of the present invention, the outer diameter of the scalper roller is understood to be the outer diameter of the scalper roller without the removal element.

[0016] According to a further embodiment of the invention, the outer diameter of the scalper roller, in relation to the distance between the scalper roller sections, has a ratio in the range of 1.5 to 4.5, preferably in the range of 1.7 to 4.0, particularly preferably in the range of 2.0 to 3.7.

[0017] Within the scope of the present invention, the outer diameter of the scalper roller is understood to be the outer diameter of the scalper roller without the removal element. P 2024096 DE Description 2025-12-11

[0018] According to a further embodiment of the invention, the scalper roller arrangement comprises a discharge device, in particular for discharging milled material. For example, a discharge device is selected from a group consisting of a mechanical discharge device, in particular a discharge screw, a chain conveyor, for example a scraper chain conveyor, a pneumatic discharge device, in particular a suction device, or a combination thereof.

[0019] According to a further embodiment of the invention, the scalper roller sections, in particular scalper roller segments, have a segmented outer shell, in particular an outer shell with two or more segments, for example a segmented shell surface.

[0020] According to a further embodiment of the invention, the removal elements are selected from a group of extensions, in particular rake tines, for example rake mandrels, rake points, rake hooks, claws, tool inserts, bars, in particular aligned in the longitudinal direction of the scalper roller, for example rectangular bars, triangular bars, projections, bristles, lamellae, cavities, in particular pockets or a combination thereof.

[0021] According to a further embodiment of the invention, the scalper roller, which can be driven by a drive, comprises as a drive a drive for rotation control of the scalper roller, wherein the drive is arranged on one side or both sides of the scalper roller, in particular the scalper roller can be driven synchronously on one side or both sides, especially both sides.

[0022] A further object of the invention is the use of an axis-variable connecting element in a scalper roller arrangement, in particular a scalper roller device for leveling quantities of bulk material lying on a conveyor belt, in particular for leveling quantities of bulk wood material for the production of a wood panel, in particular a wood-based panel, comprising at least one scalper roller which is arranged substantially transversely, in particular approximately transversely to the orientation of the conveyor belt above it, in particular on the side of the bulk material lying on a conveyor belt facing away from the conveyor belt, wherein the scalper roller is equipped with a drive, in particular an external drive, for example an external drive, in particular a P 2024096 DE Description 2025-12-11

[0023] shaft drive, in particular driven, and wherein the scalper roller is formed along its longitudinal extent, at least on its surface, from several scalper roller sections, in particular scalper roller segments, and wherein the distance between the surface of each scalper roller section and the conveyor belt is variable independently of other scalper roller sections, wherein each scalper roller section is provided with removal elements for the bulk material on its sections that come into contact with the bulk material, wherein the scalper roller sections are each coupled to an axis-variable connecting element, in particular connected in a torque-transmitting manner, for example in a rotation-effective manner, for example in a drive-effective manner, wherein a shaft element is arranged between each adjacent axis-variable connecting elements, in particular connecting adjacent axis-variable connecting elements in a drive-effective manner.wherein a support arm is arranged on one side on each shaft element and on the other side on a support, in particular a torque compensation support, in each case rotationally supported, in particular rotatably supported, for example by rotary bearing, wherein a stroke level adjustment device is arranged on each support arm, in particular for level adjustment, for changeability, in particular change of the distance between the surface of each scalper roller section and the conveyor belt independently of other scalper roller sections, and for torque transmission, in particular torque transmission, for example drive transmission to the scalper roller sections of the scalper roller.

[0024] In the context of the present invention, an axis-variable connecting element is understood to be a connecting element that connects two radially offset shafts, in particular shafts that are not aligned with each other, and in particular connects them in a torque-transmitting manner, for example, in a drive-effective manner. For example, an axis-variable connecting element is selected from a group consisting of an adjustable shaft coupling, in particular a parallel crank coupling, for example a Schmidt coupling, a cardan coupling, a compensator, a bellows, an elastomer coupling, or a combination thereof.

[0025] Within the scope of the present invention, a stroke level adjustment device is understood to be a device with which the stroke, in particular the distance between the surface of each scalper roller section and the conveyor belt, is adjusted. P 2024096 DE Description 2025-12-11

[0026] The amount of bulk material resting on the conveyor belt is adjustable, in particular variable, for example levelable, independently of other scalper roller sections. For example, a stroke level adjustment device is selected from a group consisting of a mechanical adjustment device, a pneumatic adjustment device, a hydraulic adjustment device, an electrical adjustment device, for example electric linear motors, or a combination thereof.

[0027] The invention will now be explained in more detail by way of example with reference to drawings illustrating only one embodiment. These show:

[0028] Fig. 1: A schematic oblique top view of a scalper roller arrangement for leveling bulk material quantities lying on a conveyor belt according to a first embodiment,

[0029] Fig. 2: A schematic side view of a scalper roller arrangement according to Fig. 1,

[0030] Fig. 3: A section of a schematic longitudinal sectional view of a scalper roller arrangement according to Fig. 2, parallel to the axis of the conveyor belt.

[0031] Fig. 4: A section of a schematic longitudinal sectional view perpendicular to the conveyor belt of a scalper roller arrangement according to Fig. 2.

[0032] Fig. 1 shows the scalper roller arrangement 1 according to the invention with a drive 5, a conveyor belt 2 with a production direction P and bulk material quantities 3 lying on the conveyor belt 2.

[0033] Fig. 2 shows the scalper roller arrangement according to Fig. 1 with a scalper roller 4, which is arranged essentially transversely to the orientation of the conveyor belt 2 above it. The scalper roller 4 is formed along its longitudinal extent, at least on its surface, from several scalper roller sections 6, 6', 6", 6"', 6"", 6""'. Bulk material quantities 3 rest on the conveyor belt 2 with the production direction P. A lifting level adjustment device 12, 12', 12" is arranged on each of a support arm 10, 10', 10", 10"', 10"", 10""'. The side of each support arm 10, 10', 10", 10'", 10"", 10'"" facing the production direction P is connected to the lifting level adjustment device 12, 12', 12".

[0034] Each support 11 is rotatably mounted. A discharge device 13 is shown on the side of the scalper roller 4 facing away from the production direction P.

[0035] Fig. 3 shows a section of the scalper roller arrangement 1 according to Fig. 2. Each scalper roller section 6, 6', 6”, 6”', 6””,

[0036]

[0037] The scalper roller sections 6, 6', 6", 6"', 6"" are provided with removal elements 7, 7', 7", 7"" on the sections that come into contact with the bulk material. Each scalper roller section 6 is coupled to an axis-variable connecting element 8, 8', 8", 8"'. A shaft element 9, 9', 9", 9"' is arranged between each adjacent axis-variable connecting element 8, 8', 8", 8"'. The side of each support arm 10, 10', 10", 10"', 10"", 10'"" facing the scalper roller 4 is rotatably mounted on a shaft element 9, 9', 9", 9'"". The discharge device 13 is shown on the side of the scalper roller 4 facing away from the production direction P.

[0038] Figure 4 shows a section of the scalper roller assembly 1 according to Figure 2, with the scalper roller 4 arranged essentially transversely to the orientation of the conveyor belt 2 above it. The scalper roller 4 is formed along its longitudinal extent, at least on its surface, from the scalper roller sections 6, 6', 6", 6'", 6"", 6'"". Bulk material quantities 3 rest on the conveyor belt 2. Each scalper roller section 6, 6', 6", 6'", 6"", 6'"" is provided with the removal elements 7, 7', 7", 7'", 7"" on the section that comes into contact with the bulk material quantity 3. A shaft element 9, 9', 9", 9'" is arranged between each adjacent axially variable connecting element 8, 8', 8", 8'". The side of each support arm 10, 10', 10”, 10'”, 10””, 10'”” facing the scalper roller 4 is rotatably mounted on a shaft element 9, 9', 9”, 9’”. P 2024096 DE Description 2025-12-11

[0039] List of reference symbols:

[0040] 1 = Scalper roller arrangement

[0041] 2 = Conveyor belt

[0042] 3 = Bulk material quantities

[0043] 4 = Scalper roller

[0044] 5 = Drive

[0045] 6, 6', 6”, 6”', 6””, 6””' = Scalper roller section(s)

[0046] 7, 7', 7”, 7'”, 7”” = Ablation element(s)

[0047] 8, 8', 8”, 8'” = axis variable connecting element(s) 9, 9', 9”, 9”' = shaft element(s)

[0048] 10, 10', 10”, 10'”, 10””, 10. = Support arm(s)

[0049] 11 = Support

[0050] 12, 12', 12” = Lifting level adjustment device(s) 13 = Discharge device

[0051] P = Production direction

[0052] x = bulk material

Claims

240096P10WO Patent claims 2025-12-11 1. Scalper roller arrangement (1 ) for leveling quantities of bulk material (3) lying on a conveyor belt (2) comprising at least one scalper roller (4) which is arranged substantially transversely to the orientation of the conveyor belt (2) above it, wherein the scalper roller (4) can be driven by a drive (5) and wherein the scalper roller (4) is formed along its longitudinal extent at least on its surface from several scalper roller sections (6, 6', 6”, 6”', 6””, 6””') and that the distance between the surface of each scalper roller section (6, 6', 6”, 6”’, 6””, 6 ) and the conveyor belt (2) is variable independently of other scalper roller sections (6, 6', 6”, 6”’, 6””, 6””’) wherein each scalper roller section (6, 6', 6”, 6”', 6””, 6””’) is provided on its sections that come into contact with the bulk material with removal elements (7, 7', 7”, 7”’, 7””) for the bulk material, wherein the scalper roller sections (6, 6', 6”, 6”', 6””, 6””') are each coupled to an axis-variable connecting element (8, 8', 8”, 8”'), wherein a wave element (9, 9', 9”, 9”') is arranged between each adjacent axis-variable connecting elements (8, 8', 8”, 8”'), wherein a support arm (10, 10', 10”, 10”', 10””, 10 ) is arranged in a rotationally supported manner on one side at each shaft element (9, 9', 9”, 9'”) and on the other side at a support (11), wherein a lifting level adjustment device (12, 12', 12”) is arranged on each support arm (10, 10', 10”, 10'”, 10””, 10'””).

2. Scalper roller arrangement (1) according to claim 1 , characterized by the fact that The outer diameter of the scalper roller (4) with respect to the radial offset between the scalper roller sections (6, 6', 6", 6'", 6"", 6'"") has a ratio in the range of 1.5 to 3.5, preferably in the range of 1.7 to 3.0, and particularly preferably in the range of 2.0 to 2.

8. 240096P10WO Claims 2025-12-11 3. Scalper roller arrangement (1) according to one of claims 1 to 2, characterized by the fact that the outer diameter of the scalper roller (4) in relation to the distance between the scalper roller sections (6, 6', 6”, 6”', 6””, 6””') has a ratio in the range of 1.5 to 4.5, preferably in the range of 1.7 to 4.0, particularly preferably in the range of 2.0 to 3.

7.

4. Scalper roller arrangement (1) according to any one of claims 1 to 3, characterized by the fact that the scalper roller arrangement (1) comprises a discharge device (13).

5. Scalper roller arrangement (1) according to any one of claims 1 to 4, characterized by the fact that the scalper roller sections (6, 6', 6”, 6”', 6””, 6 ) have a segmented outer shell.

6. Scalper roller arrangement (1) according to any one of claims 1 to 5, characterized by the fact that the removal elements (7, 7', 7”, 7”', 7””) are selected from a group of extensions, in particular rake tines, for example rake mandrels, rake points, rake hooks, claws, tool inserts, bars, in particular aligned in the longitudinal direction of the scalper roller, for example rectangular bars, triangular bars, projections, bristles, lamellae, cavities, in particular pockets or a combination thereof.

7. Scalper roller arrangement (1) according to any one of claims 1 to 6, characterized by the fact that The scalper roller (4), which can be driven by a drive (5), comprises a drive (5) for rotational control of the scalper roller (4), wherein the drive (5) is arranged on one or both sides of the scalper roller (4), in particular the scalper roller (4) can be driven synchronously on one or both sides, especially both sides. 240096P10WO Patent Claims 2025-12-11 8. Use of an axis-variable connecting element (8, 8', 8”, 8”') in a scalper roller arrangement (1) according to any one of claims 1 to 7, for changing the distance between the surface of each scalper roller section (6, 6', 6”, 6”', 6””, 6 ) and the conveyor belt (2) independently of other scalper roller sections (6, 6', 6”, 6”', 6””, 6””') and for transmitting torque to the scalper roller sections (6, 6', 6”, 6”’, 6””, 6””’) of the scalper roller (4).

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