WO2023282832A1 - Appareil de ponçage pour le ponçage d'une surface en béton et son procédé de fonctionnement - Google Patents

Appareil de ponçage pour le ponçage d'une surface en béton et son procédé de fonctionnement Download PDF

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Publication number
WO2023282832A1
WO2023282832A1 PCT/SE2022/050688 SE2022050688W WO2023282832A1 WO 2023282832 A1 WO2023282832 A1 WO 2023282832A1 SE 2022050688 W SE2022050688 W SE 2022050688W WO 2023282832 A1 WO2023282832 A1 WO 2023282832A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding apparatus
grinding
rotating means
axle
pad
Prior art date
Application number
PCT/SE2022/050688
Other languages
English (en)
Inventor
Arild VIKEN
Original Assignee
Arilds Betongslipning Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arilds Betongslipning Ab filed Critical Arilds Betongslipning Ab
Publication of WO2023282832A1 publication Critical patent/WO2023282832A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/20—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by planing, e.g. channelling by means of planing tools

Definitions

  • Grinded concrete has seen a major growth over the recent years and is a result of taking what is a traditional building product (i.e. concrete flooring) and manipulating it into an attractive floor finish. It provides a wide spectrum of varying color choices and surface finishes. Grinding and polishing concrete (also referred to herein as grinding concrete) is generally a truly mechanical process.
  • the grinding apparatuses has grinding pads comprising abrasive elements.
  • abrasive elements are preferably diamond pads and are rotated during the grinding steps, e.g., at rotating speeds in the range of about 500 to 800 rpm.
  • the tool pads are enclosed by a chassi that is in proximity to the floor and surrounds the rotating pads.
  • the present disclosure is at least partly based on the insight that by providing a grinding apparatus that is more flexible and efficient, the grinding apparatuses will be improved in terms of having a better performance, being faster in operation and less damaging to a surface that is treated.
  • the threshold may be a vertical level difference of 1-lOmm.
  • the vertical adjustment device may be coupled to a wheel arrangement comprising at least a first pair of wheels, wherein said vertical adjustment device is configured to adjust at least one of said first pair of wheels in a vertical direction of said grinding apparatus.
  • the said first pair of wheels may be positioned at a side portion of said base unit forming a row in an operating direction of said grinding apparatus. Allowing for the grinding apparatus to vertically adjust its height from the side. This is specifically beneficial since conventionally surface variations occur close to walls. Thus, by adjusting the side of the grinding apparatus, the grinding apparatus can grind the wall in its operating direction and be automatically adjusted during the way.
  • the wheel arrangement may further comprise a second pair of wheels positioned at an opposing side portion of said base unit.
  • the grinding apparatus may have two pairs of wheels so to allow it to be adjusted from a plurality of directions, giving it higher flexibility to solve surface variations on a floor that is treated.
  • the measuring means may comprise a gyroscope instrument e.g. a laser gyroscope instrument, or a spirit level
  • the base unit may comprise a handle rotatably attached to said base unit, wherein said handle is rotatable of at least 180 degrees around an attachment axis.
  • the handle may allow the base unit to be put into a transporting position and an inspection position.
  • the grinding apparatus may firstly, utilize a combination several different types of grinding pads e.g. each rotating means may be attached to a grinding pad with different size, shape or form so to perform a grinding operation more efficiently, flexibly and rapidly.
  • Each of said rotating means comprises a tension roller arrangement attached to said spindle axle, each tension roller arrangement comprising a first and a second pad attachment axle, wherein each first and second pad attachment axle are offset relative said central axis of said base unit.
  • a benefit of this is that it allows for the two grinding pads to operate on a larger surface.
  • a benefit of this is that the grinding pads are allowed be more efficient and flexible, by being offset relative said central axis they are allowed to operate on a wider surface. Further, by having an angle of greater than 90 degrees between the extension axis and the central axis allows the grinding apparatus to operate broader than conventionally, but not to broad, compared to e.g. if they were to form a vertical row.
  • the grinding apparatus may comprise a control unit configured to independently adjust the motor speed of each of the at least one motors. Thus, allowing for more flexibility in a grinding process since each motor may operate at a differing speed, and/or be changed dynamically to a different speed.
  • the control unit may also be configured to independently adjust the rotating direction of each of the rotating means. Thus, allowing e.g. a rotating means to rotate in an opposing direction compared to another rotating means of the plurality of rotating means.
  • the spindle axle may be configured to move said tension roller arrangement to rotate each grinding pad around each corresponding pad attachment axle.
  • the spindle axle may facilitate rotation around each pad attachment axle allowing for a more efficient grinding process.
  • Each of said rotating means may comprise a tension roller arrangement attached to said spindle axle, each tension roller arrangement comprising a first and a second pad attachment axle, wherein each first and second pad attachment axle are offset relative said central axis of said base unit.
  • an extension axis between a first and a second pad attachment axle may form an angle with said central axis, wherein said angle is greater than 90 degrees.
  • said grinding apparatus may comprise a control unit configured to independently adjust the rotating direction of each of the rotating means.
  • said spindle axle may be is configured to move said tension roller arrangement to rotate each grinding pad around each corresponding pad attachment axle.
  • Figure 1A illustrates from a side view a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 2 illustrates from an objective view a grinding apparatus operating on a floor in accordance with an embodiment of the present disclosure
  • Figure 3 illustrates from an objective view a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 4 illustrates from a back view a grinding apparatus operating on a floor in accordance with an embodiment of the present disclosure
  • Figure 5A illustrates from a top cross-sectional view a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 5B illustrates a tension roller arrangement from an objective view
  • Figure 6A-6B illustrate a part of a grinding apparatus from an objective view in accordance with an embodiment of the present disclosure
  • Figure 7 illustrates a method for operating a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 8A illustrates from a side view a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 8B illustrates from a top cross-sectional view a grinding apparatus in accordance with an embodiment of the present disclosure
  • Figure 9A illustrates a grinding apparatus from a side view in accordance with aspects of the present disclosure.
  • Figure 1A illustrates from a side view, a grinding apparatus 1 for grinding a concrete surface.
  • the apparatus 1 comprising a base unit 2 comprising a chassi 3.
  • the apparatus 1 comprises at least one rotating means 4 at least partially enclosed by said chassi 3, wherein said at least one rotating means 4 is arranged to drive at least one grinding pad 5 for engaging with said surface.
  • the grinding apparatus 1 comprises at least one motor 7 driving said rotating means 4.
  • the grinding apparatus 1 comprises at least one level measuring means 8 arranged to determine if at least a first and a second surface -facing portion 9, 9' (shown in Figure IB) of said grinding apparatus 1 has vertical level differences from said surface relative to each other, wherein said grinding apparatus 1 further comprises at least one vertical adjustment device 10 configured to vertically Y1 adjust a portion of said grinding apparatus 1 to, if said vertical level differences exceeds a pre-determined threshold, compensate said level differences.
  • the pre-determined threshold may specifically be defined by, when a vertical level difference may damage the surface that is to be grinded upon.
  • the pre-determined threshold may be in a range of 1-10mm (e.g. if level differences between two portions exceed a value in the range the adjustment device 10 may compensate), the threshold may also be expressed in an angle or any other suitable measure.
  • Figure IB shows a part of the base unit 2 from an objective view, showing the first and the second portions 9, 9' as two points, thus the term "portion" may be interchanged with points.
  • the level measuring means 8 may compare the vertical level difference, between first portion 9, and second portion 9' from the surface (i.e. surface facing the grinding pads 5).
  • the level measuring means 8 may be a gyroscope or a spirit level.
  • the control unit 20 may further be configured to independently adjust the rotating direction of each of the rotating means 4. E.g. one rotating means 4 may rotate clockwise, and another one may rotate anti-clockwise.
  • the control unit 20 may also be configured to control the adjustment device 10 and obtain signals from the level measuring means 8.
  • the adjustment device 10 may also operate independently of the control unit 20.
  • the adjustment device 10 may itself comprise a control unit 20, that based on signals obtained from the level measuring means 8, adjust, e.g. by controlling an actuator device being part of said adjustment device 10, a portion of said grinding apparatus 1.
  • Figure 2 illustrates an objective view of a grinding apparatus 1 in accordance with an embodiment of the present disclosure wherein the grinding apparatus 1 operates on a surface 30.
  • the pair of wheels 12 are positioned at a side portion 13 of said base unit 2 forming a row in an operating direction XI of said grinding apparatus 1.
  • the pair of wheels 12 are arranged at a side surface 19 of said base unit 2.
  • the grinding apparatus 1 may further comprise an additional pair of wheels 12 positioned at an opposing side portion 13' of said base unit 2 (not shown).
  • the grinding apparatus 1 may comprise a transporting position, wherein the adjustment device 10 may be configured to, when said grinding apparatus 1 is set to an transporting position, vertically adjust the wheel arrangement 11, so that the wheels 12 can be used to transport said grinding apparatus 1.
  • the adjustment device 10 may adjust the wheels vertically Y1 in a portion 9 so to compensate for said surface variations.
  • Figure 3 shows an objective view of a grinding apparatus 1, showing that it may comprise a pair of wheels 12 at one side surface of said grinding apparatus 1.
  • the wheels 12 may be placed inside the chassi 3 in accordance with some embodiments of the present disclosure.
  • Figure 4A and 4B illustrates from a side-view, the grinding apparatus 1 in accordance with some embodiments of the present disclosure.
  • Figure 4A illustrates the grinding apparatus 1 showing that the adjustment device 10 hasn't adjusted the wheel arrangement 11 vertically Yl. Emphasized in the enlarged view with reference sign A.
  • Figure 4B illustrates the grinding apparatus 1 showing that the wheel arrangement 11 is vertically Yl adjusted, seen in more detail in the enlarged view with reference sign B.
  • Figure 4A and 4B illustrate that the vertical adjustment device 10 may adjust the wheel arrangement 11, upon determining level differences on a surface that is treated e.g. the surface shown in Figure 2.
  • Figure 4B illustrates that the wheel arrangement 11 is adjusted so that the wheels 12 are adjusted relative a surface facing portion 9 of the grinding apparatus 1 so to compensate for surface variations. Consequently, a portion of the grinding apparatus 1 is adjusted.
  • FIG 6A illustrates a cut-out view of a top of said grinding apparatus 1, wherein said grinding apparatus 1 comprises a plurality of rotating means 4 arranged on a common row along a central axis cl (in other words, along the operating direction xl of the grinding apparatus 1) in an operating direction xl of said grinding apparatus 1, wherein each rotating means 4 is attachable to a first and a second grinding pad 15, 15' (i.e. the at least one grinding pad 5 may be a first and a second grinding pad 15, 15'), wherein each rotating means 4 comprises a spindle axle 16 (also shown in Figure 1A) driven by said motor 7 (not shown in Figure 6A).
  • each of said rotating means 4 may comprise a tension roller arrangement 17 attached to said spindle axle 16.
  • Each tension roller arrangement 17 may comprise a first and a second pad attachment axle 18, 18'. Further, each first and second pad attachment axle 18, 18' may be offset relative said central axis cl of said base unit.
  • FIG. 6A illustrates that an extension axis el between a first and a second pad attachment axle 18, 18' form an angle a with said central axis cl, wherein said angle (a) is greater than 90 degrees.
  • each spindle axle 16 is configured to move said tension roller arrangement 17 to rotate each grinding pad 15, 15' around each corresponding pad attachment axle 18, 18'. Accordingly, the grinding pads 15, 15' may have a fixed position about said spindle axle 16, wherein the grinding pads 15, 15' rotate about each corresponding pad attachment axle 18, 18'.
  • Figure 6B illustrates an objective view of a tension roller arrangement 17, coupled to a spindle axle 16 and wherein the arrangement 17 comprises a first and second pad attachment axle 18, 18. It should be noted that the tension roller arrangement 17 may comprise more than a first and a second pad attachment axle 18, 18'.
  • Figure 7 illustrates an objective view of a part of the base 2 of the grinding apparatus 1 in accordance with embodiments of the present disclosure.
  • Figure 7 illustrates the tension roller arrangement 17 attached to the grinding apparatus 1 wherein the grinding apparatus further comprises the adjustment device 10 and the wheel arrangement 11.
  • Figure 8 schematically illustrates a method 100 for operating a grinding apparatus in accordance with the present disclosure.
  • the method 100 comprising the steps of determining 101 if said at least a first and a second surface-facing portion of said grinding apparatus has vertical level differences from said surface relative to each other. Also comprising the step of compensating 102 said vertical level differences, if said vertical level differences exceeds a pre-determined threshold.
  • Figures 9A and 9B illustrates the grinding apparatus 6 in accordance with another aspect of said grinding apparatus 1
  • Figure 9A discloses from a side view a grinding apparatus 1 for grinding a concrete surface comprising a base unit 2 comprising a chassi 3. Further dislosing a plurality of rotating means 4 at least partially enclosed by said chassi 3, wherein said plurality of rotating means 4 are arranged to drive a first and a second grinding pad 15, 15' (only showing grinding pad 5 in Fig. 9A, the first and second grinding pad 15, 15' are shown in Fig. 9B) for engaging with said surface.
  • each rotating means 4 is arranged on a common row along a central axis cl (shown in Figure 9B) in an operating direction xl of said grinding apparatus 1, wherein each rotating means 4 comprises a spindle axle 16 driven by said motor 7.
  • the central axis cl extend in the length of the grinding apparatus 1.
  • each of said rotating means 4 may comprises a tension roller arrangement 17 attached to said spindle axle 16, each tension roller arrangement 17 comprising a first and a second pad attachment axle 18, 18', wherein each first and second pad attachment axle 18, 18' are offset relative said central axis cl of said base unit 2.
  • an extension axis el (extending) between a first and a second pad attachment axle 18, 18' form an angle (a) with said central axis cl, wherein said angle (a) is greater than 90 degrees. Allowing for an optimal placement of said grinding pads 15, 15' relative each other.
  • the spindle axle 16 may be configured to move said tension roller arrangement 17 to rotate each grinding pad 15, 15' around each corresponding pad attachment axle 18, 18'. Accordingly, the grinding pads 15, 15' may have a fixed position about said spindle axle 16, wherein the grinding pads 15, 15' rotate about each corresponding pad attachment axle 18, 18'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Road Repair (AREA)

Abstract

La présente invention concerne un appareil de ponçage (1) pour poncer une surface en béton comprenant une unité de base (2) comprenant un châssis (3) et au moins un moyen de rotation (4) entouré au moins partiellement par ledit châssis (3). Le ou les moyens de rotation (4) sont agencés pour entraîner au moins un tampon de ponçage (5) pour venir en prise avec ladite surface. En outre, l'appareil de ponçage (1) comprend au moins un moteur (7) entraînant lesdits moyens de rotation (4). De plus, l'appareil de ponçage (1) comprend au moins un moyen de mesure de niveau (8) agencé pour déterminer si au moins une première et une seconde partie faisant face à la surface (9, 9') dudit appareil de ponçage (1) présentent des différences de niveau vertical par rapport à ladite surface l'une par rapport à l'autre, lequel ledit appareil de ponçage (1) comprenant en outre au moins un dispositif de réglage vertical (10) configuré pour régler verticalement (y1) une partie dudit appareil de ponçage (1) pour, si lesdites différences de niveau vertical dépassent un seuil prédéterminé, compenser lesdites différences de niveau.
PCT/SE2022/050688 2021-07-07 2022-07-06 Appareil de ponçage pour le ponçage d'une surface en béton et son procédé de fonctionnement WO2023282832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2150898-1 2021-07-07
SE2150898A SE545824C2 (en) 2021-07-07 2021-07-07 A grinding apparatus with a vertical adjustment device for grinding a concrete surface and a method for operating the same

Publications (1)

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WO2023282832A1 true WO2023282832A1 (fr) 2023-01-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129539A (en) * 1962-12-26 1964-04-21 Nicholas L Tempero Surface sander having automatic leveling properties
US5643047A (en) * 1990-08-01 1997-07-01 Concrete Grinding Ltd. Mobile floor grinding vehicle
WO2008100211A1 (fr) * 2007-02-15 2008-08-21 Htc Sweden Ab Système, dispositif et procédé pour niveler des sols
US20090117833A1 (en) * 2005-05-06 2009-05-07 Alfred Puchegger Floor sanding machine
CN105538075A (zh) * 2016-02-29 2016-05-04 晋江兴翼机械有限公司 一种研磨机的研磨平面定位方法
US20180333823A1 (en) * 2017-05-19 2018-11-22 Karl Heesemann Maschinenfabrik Gmbh & Co. Kg Grinding machine for grinding a surface of an object

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129539A (en) * 1962-12-26 1964-04-21 Nicholas L Tempero Surface sander having automatic leveling properties
US5643047A (en) * 1990-08-01 1997-07-01 Concrete Grinding Ltd. Mobile floor grinding vehicle
US20090117833A1 (en) * 2005-05-06 2009-05-07 Alfred Puchegger Floor sanding machine
WO2008100211A1 (fr) * 2007-02-15 2008-08-21 Htc Sweden Ab Système, dispositif et procédé pour niveler des sols
CN105538075A (zh) * 2016-02-29 2016-05-04 晋江兴翼机械有限公司 一种研磨机的研磨平面定位方法
US20180333823A1 (en) * 2017-05-19 2018-11-22 Karl Heesemann Maschinenfabrik Gmbh & Co. Kg Grinding machine for grinding a surface of an object

Also Published As

Publication number Publication date
SE545824C2 (en) 2024-02-13
SE2150898A1 (en) 2023-01-08

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