Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27D—WORKING VENEER OR PLYWOOD
  • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
  • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
  • B27G17/00—Manually-operated tools
  • B27G17/02—Hand planes
  • B27G17/025—Hand planes for forming profiles on wood; for trimming or chamfering edges

Definitions

• the invention relates to a device with a scraper, which is used to pull off a surface material of a workpiece, which is preferably at least partially made of wood,
• Wood materials, plastics or the like consist is suitable.
• the invention also relates to a method.
• scrapers are used to machine the surfaces of a workpiece that is at least partially made of wood, wood-based materials, plastics or the like.
• the workpieces are preferably plate-shaped and in particular have one or more separately glued on edges.
• the workpieces are processed in various processing stations and processing steps, such as milling the workpiece edge (chamfering, radius milling), grinding and finishing (removing the surface with a scraper).
• milling the workpiece edge chamfering, radius milling
• grinding and finishing removing the surface with a scraper.
• the surface in the area of the narrow side surface is in one
• the scraper can only be used on an edge material
• the narrow side surface can be the surface material consisting of a surface coating material
• Edge material that is processed by the scraper in such a way that a bevel is created in the area of the narrow side surface is processed by the scraper in such a way that a bevel is created in the area of the narrow side surface.
• Narrow side surface on certain properties such as
• Cross cuts can be caused by the vibrations of the
• Profile scraper arise on the surface. Therefore, in conventional methods, the surface has to be post-processed in a costly manner by polishing to a predetermined value
• multi-profile scrapers which have several machining profiles in one tool with different
• plastics preferably made of polymethyl methacrylate or polyurethane, so that a smooth surface of the surface material is formed which has no defects and / or defects.
• the invention aims to provide a device for peeling off a surface material of a workpiece with a
• a hard and / or brittle surface material of a workpiece is processed. Furthermore, a hard and / or brittle surface material of a workpiece is processed. Furthermore, a hard and / or brittle surface material of a workpiece is processed. Furthermore, a hard and / or brittle surface material of a workpiece is processed. Furthermore, a hard and / or brittle surface material of a workpiece is processed. Furthermore, a hard and / or brittle surface material of a workpiece is processed. Furthermore, a
• Scraper with a rake angle and shaft angle designed so that it can be used in conventional profile scraper units and multi-scraper units.
• costs can be reduced since no further processing steps of the surface material of a workpiece, such as polishing units, polishing machines, or manual reworking, are necessary.
• the subject matter of claim 1 provides a corresponding device for removing a surface material from a workpiece. Further preferred embodiments are set out in the dependent claims.
• the invention also relates to a method.
• One idea of the invention is to provide a device for pulling a surface material with a scraper, a peeling cut on the surface material by means of the scraper being possible and thus a
• Scraper is a processing of hard and / or brittle plastics, which are preferably made of polymethyl methacrylate or polyurethane, possible.
• the invention relates to a device to improve the peeling process of a surface material by means of a peeling device, so that a surface with a high
• the device for peeling off a surface material of a workpiece comprises a scraper, which can be brought into engagement for peeling with a surface to be peeled off and defines a first axis at the engagement area through the engagement of the surface with the scraper on contact, and a conveyor device for bringing about a relative movement of the surface to be peeled off Surface of the workpiece and / or the scraper in a conveying direction, the scraper being characterized in that the scraper has a first angle (a) and / or a second ( ⁇ ) angle or a negative second (b ') angle with respect to the surface to be removed having, wherein the first angle is a rake angle and the second angle is a shear angle.
• Scraper with a first angle and a second angle it is ensured that the surface material can be processed by a scraper, and thus a surface with a high surface quality, such as gloss and flatness, can be processed without post-processing.
• the surface material of the workpiece can be processed so that the surface of the surface material has predetermined properties, such as e.g. Flatness and shine.
• the scraper according to the invention is also used for profile design and profiling of
• Workpieces can be used, preferably in the range of
• the pulling device comprises a scraper which can be moved around the first axis as the origin and thus spans the first angle ( ⁇ ), wherein
• the first angle is constructed against the conveying direction of the scraper, and / or a second axis is a vertical axis on the first axis and perpendicular to the surface to be peeled off, and the scraper is movable about this second axis and the second angle or the negative second Spans angle, preferably the second angle (ß) against the conveying direction of the scraper
• the negative second angle (b ') is constructed in the conveying direction of the scraper.
• Scraper with a first angle (rake angle) and a second angle (shear angle) ensures that the surface material can be processed by a scraper in such a way that the surface is chipped and thus a surface with a high surface quality, such as
• gloss and flatness are produced without post-processing.
• the pulling device has a scraper that is suitable for this from materials
• Plastics such as polycinyl chloride, acrylonitrile-butadiene-styrene copolymers, polypropylene, preferably made of
• the first angle (a) of the scraper has at least a value of 1 °, preferably a value in the range between 1 ° and 40 °, the first angle is particularly preferably in the range from 20 ° to 35 °, particularly preferred the first angle is 30 °, and / or the second angle ( ⁇ ) of the scraper has at least a value of 1 °, the second angle preferably has a value in the range from 1 ° to 15 °, the second angle is particularly preferred in the range from 1 ° to 12 °, particularly preferably the second angle is 10 °, or the negative second angle (b ') of the scraper has at least a value of 1 °, preferably the negative second angle has a value in the range of 1 ° to 15 °, especially
• the negative second angle is preferably in the range from 1 ° to 12 °, particularly preferably the negative second angle is 10 °.
• the special geometry and the special rake angle and shear angle ensure that the surface of the hard and / or brittle surface material
• the invention can according to the invention a
• Scraper on a scraper body surfaces made of plastics, such as polymethyl methacrylate or polyurethane, can be processed without post-processing. Furthermore, further profiles, in addition to the scraper, can be provided on the scraper body. In addition, the scraper body with the special scraper geometry can be easily manufactured and used as a tool in a machine system.
• the conveying device is set up so that the feed for processing a surface material by the scraper is in the range from 10 m / min to 60 m / min, preferably in the range from 16 m / min to 25 m / min, lies.
• scraper according to the invention in a machine processing, e.g. can be used in CNC technology, through-feed technology, economic efficiency is ensured with the scraper according to the invention.
• the scraper is formed on a scraper body, and the scraper has a first angle (a) of at least 1 ° with respect to the scraper body, preferably an angle in the range from 1 ° to 40 °, the first angle is particularly preferred in the range from 20 ° to 35 °, particularly preferably the first angle is 30 °, and / or a second angle ( ⁇ ) of at least 1 °, preferably an angle in the range from 1 ° to 15 °, particularly preferably is second angle in the range from 1 ° to 12 °, particularly preferably the second angle is 10 °, or a negative second angle (b ') of at least 1 °, preferably an angle in the range from 1 ° to 15 °, particularly preferably the negative second angle is in the range from 1 ° to 12 °, particularly preferably the negative second angle is 10 °. Due to the special geometry and design of the first angle (a) of at least 1 ° with respect to the scraper body, preferably an angle in the range from 1 ° to 40
• Scraper on a scraper body surfaces made of plastics, such as polymethyl methacrylate or polyurethane, can be processed without post-processing.
• the scraper body with the special scraper geometry can be easily manufactured and used as a tool in a machine system.
• the scraper is designed on a scraper body holder so that the scraper has a first angle (a) of at least 1 °, preferably an angle in the range from 1 ° to 40 °, the first angle in the range being particularly preferred from 20 ° to 35 °, the first is particularly preferred
• the second angle is preferably in the range 1 ° to 15 °, the second angle is particularly preferably in the range from 1 ° to 12 °, in particular
• the second angle is preferably 10 °, or has a negative second angle (b ') of at least 1 °, the negative second angle is preferably in the range 1 ° to 15 °, the negative second angle is particularly preferably in the range of 1 ° to 12 °, particularly preferably the negative second angle is 10 °.
• Polymethyl methacrylate or polyurethane can be processed without post-processing.
• the scraper is in addition to a multi-scraper and / or
• Profile scraper formed on the scraper body. This allows different profiles in one tool
• Machine downtimes can be reduced.
• the present invention further comprises a method of machining a surface material of a workpiece using a scraper according to the preferred one
• the scraper defines a first axis during peeling with a surface to be peeled off in the contact region, and a conveyor device for bringing about a relative movement of a surface of the workpiece and / or the scraper in a conveying direction, wherein a
• the scraper having a first angle (a) and / or a second angle ( ⁇ ) or a negative second angle (b ') according to the preferred embodiment when the surface material is removed.
• the method processes the surface of a workpiece to be peeled off in such a way that the hard and / or brittle surface material is removed by the scraper and thus a surface with previously defined properties, such as E.g. gloss and evenness are created.
• Peeling device the surface material to be peeled is peeled off by the scraper beyond a glue joint.
• the surface material and the edge material of a workpiece can be processed by the scraper, which, for example, from different materials, such as.
• the bevel becomes formed in the area of a narrow side surface from the edge material and the surface material of a workpiece.
• Machined surface material which has an edge material and / or a surface coating material, wherein the edge material and the surface coating material can consist of different materials, and preferably the edge material at right angles to
• the surface material which is an edge material of a workpiece and / or a surface coating material, which for example consist of different materials, can thus be processed by the scraper.
• the surface scraped off by the scraper is in the
• the removal of the surface material by the scraper is a thickness of 0.03 mm to 0.20 mm, preferably 0.05 mm to 0.10 mm.
• Scraper movable around the first axis as the origin and thus spans the first angle, whereby preferably the first angle (a) is constructed against the conveying direction of the scraper, and / or a second axis as a vertical axis on the first axis and perpendicular to the surface to be removed, and the scraper is movable about this second axis and spans the second angle ( ⁇ ) or the negative second angle (b '), the second angle preferably being constructed against the conveying direction of the scraper, or preferably the negative second angle Angle is constructed in the conveying direction of the scraper.
• This special geometry of the scraper and the first angle and the second angle or the negative second angle ensures that the surface of the hard and / or brittle surface material can be produced by the scraper according to the invention without post-processing.
• Scraper materials made of plastics such as polycinyl chloride, acrylonitrile-butadiene-styrene copolymers, polypropylene,
• Machine downtimes can be reduced.
• the scraper can be designed with and without a clearance angle.
• the scraper can contain an anti-fracture bevel with a clearance angle or an anti-fracture bevel without a clearance angle. In a further embodiment this can
• Surface material of a workpiece can be processed with a scraper so that a standard version of the
• the high-gloss finish of the scraper e.g. polished
• Plastic materials such as polycinyl chloride, acrylonitrile-butadiene-styrene copolymers, polypropylene are suitable.
• Shown pulling device of a surface material of a workpiece according to an exemplary embodiment.
• FIGS. 4A and 4B a schematic representation of FIG
• 5A to 5B various schematic representations of the scraper in the relative relationship to the surface to be removed;
• Fig. 1 shows in a schematic representation a
• Edge material 11 is expanded.
• the relationship between the scraper and the conveying device is not shown true to scale in FIG.
• the workpiece 1 is located on a conveyor device 5, which in one embodiment can be designed as a conveyor belt.
• the conveyor can also be designed differently in a further embodiment.
• the device 100 for removing a surface material from a workpiece 1 comprises a scraper 2, which is placed on a scraper body 25
• the ⁇ is trained. In one embodiment, the ⁇ is trained.
• the scraper body 25 has further profiles and radii in addition to the scraper 2.
• a scraper body 25 has further profiles and radii in addition to the scraper 2.
• a scraper body 25 has further profiles and radii in addition to the scraper 2.
• Fig. 2 shows a schematic representation
• the geometry / construction of the pulling device takes place via the relative orientation between the surface 12 to be pulled off and the scraper 2, which has two angles, a first angle ⁇ and / or a second angle ⁇ .
• the first angle ⁇ is the rake angle and / or the second angle ⁇ is an axial angle.
• FIG. 3 4A and 4B are schematic representations of the scraper 2 shown in FIG. 2 and the surface 12 to be peeled off.
• the second angle is ⁇
• FIGS. 5A, 5B and 5C show a schematic
• Scraper body 25 formed, the scraper body 25 via fastening elements 4, for example
• the scraper 2 is in one
• Embodiment formed with a first angle ⁇ and a second angle ⁇ or a negative second angle ⁇ ', so that the scraper 2 comes into contact with the surface 12 to be peeled off at a first angle ⁇ and a second angle ⁇ or a negative second angle ⁇ 'and can peel off the surface when the conveyor device moves the workpiece and / or the scraper relative to one another.
• the scraper 2 is designed in such a way that it can be moved around a first axis A1 as the origin and thus the first
• the scraper 2 is movable about this second axis A2 and spans the second angle ⁇ or a negative second angle ⁇ ', the second angle preferably being constructed against the conveying direction RW of the scraper, or preferably the negative second angle ⁇ 'is constructed in the conveying direction RW of the scraper 2.
• the scraper 2 is formed with the scraper body 25 on the scraper body holder 3 in such a way that it is firmly connected when the method for processing a surface material is carried out and no movements are permitted.
• the conveying direction RW is a relative movement between the workpiece 1 and the scraper 2.
• Conveyor 5 move the workpiece 1 and / or the scraper 2. If through the conveyor 5 both
• the conveying direction RW is parallel to a z-axis in one embodiment.
• the conveyor 5 moves in the direction of the z- Axis through.
• the y-axis is perpendicular to the surface 10 of the workpiece 1 and the x-axis is perpendicular to the surface of the edge material 11 or narrow side surface of the workpiece 1 in one embodiment.
• the axes x, y and z are thus perpendicular to each other.
• the x, y, z axes can be selected in a conventional manner.
• the conveying direction RW also defines a normal plane N which is perpendicular to the conveying direction RW.
• the conveying direction RW also defines a normal plane N which is perpendicular to the conveying direction RW.
• Conveyor 5 also perform movements in other directions.
• the first angle ⁇ and / or the second angle ⁇ can also be defined by means of the normal plane N (FIG. 6).
• the first angle a can be created by the movement of a first reference surface B1, which is formed parallel to the normal plane N when the first angle a is at 0 °, and about the first axis A1 and counter to the conveying direction RW
• the normal plane N is formed when the second angle ⁇ is 0 °, around a second axis A2, which is perpendicular to the first axis A1 and perpendicular to the surface 12 to be peeled off, preferably opposite to that
• first angle ⁇ and the second angle ⁇ can be constructed by the following features.
• a first reference surface CI which is parallel to the normal plane N when the first angle a is at 0 °, can be moved around the first axis Al as the origin and is thus through the
• a second axis A2 is defined perpendicular to the first axis A1 and perpendicular to the surface 12 to be peeled off.
• Reference surface C2 which is parallel to the normal plane N when the second angle ⁇ is at 0 °, is movable about this second axis A2 and the second angle ⁇ is spanned by the normal plane N and the second reference surface C2, the second angle ⁇ preferably being opposite the conveying direction RW is constructed.
• reference areas Bl and CI and the reference areas B2 and C2 correspond.
• the scraper 2 has a cutting edge which can be brought into engagement with the surface 12 to be removed and which defines the first axis A1 in the contact area. Due to the special geometry of the scraper 2 with a first angle ⁇ and / or a second angle ⁇ or a negative second angle ⁇ ', the surface 12 to be removed is chipped off by the scraper 2 and the conveying device 5.
• the cutting edge geometry can preferably be in the scraper 2
• the scraper 2 can have different materials, such as metal, preferably hard metal, diamond, ceramic, hardened steels, alloyed unhardened steels.
• the scraper 2 has a peeling cut, so that a uniform peeling of the
• the scraper 2 is suitable for design elements, so that different surface properties of the
• Surface 12 can be achieved, such as a surface finish, flatness and gloss.
• the scraper 2 can be attached to a scraper body 25 and to the scraper body holder 3 via connecting elements 4, preferably fastening screws.
• the scraper 2 is permanently fitted with the scraper body holder 3.
• the scraper 2 can be ground on a scraper body 25 and the scraper body 25 can be exchanged on the
• Scraper body holder 3 be attached.
• the scraper 2 on the scraper body holder 3 can thus be exchanged.
• the scraper 2 can be placed on a scraper body 25 with different profiles, and / or chamfers and / or radii and / or special profiles and / or
• the scraper 2 is formed without a first angle, the rake angle ⁇ , and without a second angle, the shear angle ⁇ , but the
• Scraper body holder 3 is designed so that the cutting edge of the scraper 2 on the surface material 12 of a
• the rake angle works.
• the scraper 2 is designed without a shear angle ß and with a rake angle a and the
• Scraper body holder 3 is designed so that a
• the cutting edge of the scraper 2 on the surface material 12 of a workpiece with an axial angle ⁇ and rake angle ⁇ acts.
• the scraper 2 is designed with a shear angle ⁇ and without a rake angle ⁇ and the Scraper body holder 3 is designed so that a
• the cutting edge of the scraper 2 on the surface material 12 of a workpiece with an axial angle ⁇ and rake angle ⁇ acts.
• the first angle a is
• Rake angle, positive the positive angle being defined by the movement of the scraper 2 counter to the conveying direction RW of the scraper 2.
• a negative first angle a '(not shown) results from the movement of the
• the first angle a or the negative first angle a ′ can be in a range of degrees from 0 ° to 80 °.
• the second angle is ⁇
• Axis angle, positive the positive angle being defined by the movement of the scraper 2 counter to the conveying direction RW of the scraper about the second axis A2.
• the second angle ⁇ or the negative second angle ⁇ ' can be in a range from 0 ° to 80 ° .
• scraper examples of use for the scraper according to the invention are throughfeed machines (not shown) (processing feed takes place through the workpiece), processing centers
• Pullers are longitudinal and / or in
• the scraper 2 according to the invention is preferably used for workpieces plate-shaped workpieces which have corners and rounded areas (not shown) are used.

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• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Processing Of Stones Or Stones Resemblance Materials (AREA)
• Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
• Paper (AREA)
• Cleaning In General (AREA)

Priority Applications (2)

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Publications (1)

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Family Applications (1)

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Citations (5)

Family Cites Families (7)

• 2019
  • 2019-03-08 DE DE102019106002.8A patent/DE102019106002A1/de active Pending
• 2020
  • 2020-03-06 EP EP20713524.5A patent/EP3934868A1/de active Pending
  • 2020-03-06 WO PCT/EP2020/056016 patent/WO2020182657A1/de unknown
  • 2020-03-06 CN CN202080019795.4A patent/CN113543946B/zh active Active

Patent Citations (5)

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