WO2019244021A1 - Machine pour meuler des dalles - Google Patents

Machine pour meuler des dalles Download PDF

Info

Publication number
WO2019244021A1
WO2019244021A1 PCT/IB2019/055082 IB2019055082W WO2019244021A1 WO 2019244021 A1 WO2019244021 A1 WO 2019244021A1 IB 2019055082 W IB2019055082 W IB 2019055082W WO 2019244021 A1 WO2019244021 A1 WO 2019244021A1
Authority
WO
WIPO (PCT)
Prior art keywords
slabs
station
machine
grinding
feed direction
Prior art date
Application number
PCT/IB2019/055082
Other languages
English (en)
Inventor
Giuliano SIGNORINI
Original Assignee
Soltek S.R.L.
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 Soltek S.R.L. filed Critical Soltek S.R.L.
Priority to EP19742487.2A priority Critical patent/EP3810366B1/fr
Publication of WO2019244021A1 publication Critical patent/WO2019244021A1/fr

Links

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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • 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
    • B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
    • B24B9/102—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass for travelling sheets

Definitions

  • This invention relates to the field of machining slabs, for example tiles, made from ceramic material, stone, glass or the like.
  • the invention relates to a machine for grinding slabs.
  • the sides of the products to be processed protrude laterally and come into contact with a succession of grinding wheels, which remove the excess material and move the outer perimeter flush and, if necessary, one or more inclined grinding wheels, for performance of the chamfering operation.
  • the slabs are then rotated by 90° in such a way that the two remaining sides can be ground by further grinding wheels facing and alongside the movement plane.
  • the machines for grinding slabs have special positioning means which, after the rotation of the slabs, adjust the orientation on the movement plane in such a way that the sides already ground are perpendicular to the orientation of the subsequent grinding wheels.
  • the prior art teaches the use of the linear thrust elements located above the movement plane which, simultaneously with the passage of each slab, are lowered and transferred horizontally in an independent fashion so as to come into contact with the rear edge of the latter in such a way as to adjust the orientation.
  • the kinematic mechanism linked to the movement of these thrust elements is complex and the movement mechanism is complex and requires a large number of movement units.
  • the technical purpose which forms the basis of this invention is to provide a machine for grinding slabs which overcomes at least some of the above-mentioned drawbacks of the prior art.
  • the aim of the invention is to provide a machine for grinding slabs which is an alternative to and more efficient than the prior art, with regard to the mechanism for moving the thrust elements.
  • FIG. 2 shows a perspective view of a detail of the machine of
  • Figure 3 shows a detail of the machine of Figure 1 ;
  • FIG. 4 shows a perspective view of a detail of the machine of
  • FIG. 5A shows a perspective view of a detail of the machine of Figure 1 , with some parts removed in order to better illustrate others;
  • Figure 5B shows a perspective view from a different angle of the detail of Figure 5A.
  • machine 1 a machine for grinding slabs is indicated generically by the reference numeral 1 and it will be referred to below as “machine 1”.
  • labs means sheet like elements made of ceramic, stone, glass or the like, such as, for example, tiles for floors or walls.
  • the machine 1 comprises a main frame 10 which defines a supporting base of the machine 1 and supports a plurality of grinding and/or chamfering wheels 1 1 .
  • the machine 1 also comprises a secondary frame 20 which can be connected to the main frame 10 by one or more connecting portions 21 and preferably having one or more supporting portions 22 configured for resting on the floor.
  • the main frame 10 supports a conveyor 12 configured for moving a plurality of slabs along a feed direction“A” from an infeed station T to an outfeed station “U” passing through a grinding station “R” on which the grinding wheels 1 1 face.
  • the conveyor 12 is configured to receive the slabs to be processed from a movement plane upstream of the machine 1 and connected to the conveyor 12 at the infeed station ⁇ .
  • the conveyor 12 comprises two pairs of belts and each pair of belts comprises a lower belt and an upper belt opposite to each other and configured to grip a slab positioned between them and move it along the feed direction“A”.
  • the two pairs of belts are positioned in such a way that they grip on the slabs at respective side edges to be ground, in particular in such a way that the above-mentioned edges protrude laterally from the belts and are exposed.
  • the grinding wheels 1 1 are connected to the main frame 10 in such a way that they are movable towards and away from the conveyor 12 to come into contact with the exposed lateral edges of the slabs passing through the grinding station “R” and perform the grinding and/or chamfering.
  • the secondary frame 20 defines a calibration station “C” upstream of said grinding station “R” and of the infeed station ⁇ , at the movement plane upstream of the machine 1 , and has positioning means 25 acting on the slabs which travel on the movement plane at the calibration station“C”.
  • the positioning means 25 act along the conveyor 12 and the calibration station“C” is positioned between the infeed station ⁇ and the grinding station “R”, upstream of the latter.
  • the positioning means 25 are configured for adjusting an orientation of the slabs which pass through the calibration station“C” to adjust the orientation with respect to their feed direction“A” defined by the conveyor 12.
  • the positioning means 25 comprise sliding guides 26, preferably two, oriented parallel to the feed direction“A” and two carriages
  • the positioning means 25 comprise a single transfer actuator
  • the carriages 27 are positioned further upstream relative to the withdrawn position with reference to the feed direction“A” of the slabs.
  • the translation actuator 28 is connected to the carriages 27 by means of the mechanical transmission units 29 which connect together in a kinematic fashion the movements of the carriages 27 on the sliding guides 26 in such a way that they move in a synchronous fashion with each other.
  • the positioning means 25 comprise thrust elements 35, preferably two, each rotatably connected to a respective support 30 in such a way as to be rotationally movable relative to it between an engaging position and a disengaging position.
  • the thrust elements 35 are rotatable about respective axes of rotation‘G’ oriented perpendicularly to the feed direction“A” and parallel to the plane in which the slabs lie. In the engaging position the thrust elements 35 are configured for making contact against an end edge of a slab positioned in the calibration station “C” which advances towards the grinding station“R”.
  • the thrust elements 35 are configured so as not to interfere with a feeding of the slabs positioned on the movement plane or on the conveyor 12 towards the grinding station“R”.
  • the positioning means 25 comprise two rotation actuators 31 each connected to a respective thrust element 35 and configured to rotate about the respective axis of rotation “G” from the engaging position to the disengaging position.
  • the rotation actuators 31 are mutually independent and configured to rotate the two thrust elements 35 independently of each other.
  • the sliding of the carriages 27 along the sliding guides 26 allows the thrust elements 35 to be translated from the advanced position to the withdrawn position.
  • each of them comprises an arm 36 hinged to one of the supports 30 at a relative end in such a way as to allow the rotation of the thrust element 35 between the engaging position and the disengaging position.
  • the other end is, on the other hand, free and configured to be positioned at the level of the slabs in the calibration station“C” when in an engaging position and able to position so as not to interfere with a feed of the slabs towards the grinding station“R” when in a disengaging position.
  • each arm 36 extends along a respective main line of extension shaped in such a way that its free end is oriented perpendicularly to the lying position of the slabs in the calibration station“C” when the respective thrust element 35 is in an engaging position.
  • each thrust element 35 comprises a removable contact plug 37, connected to each arm 36 at the free end in such a way that it makes contact with a respective slab when in an engaging position during a transfer of the thrust element 35 from the advanced position to the withdrawn position.
  • the positioning means 25 comprise a mechanism for adjusting the reciprocal distance between the sliding guides 26 in such a way as to control the distance between the thrust elements 35 in a direction transversal to the feed direction“A”.
  • the sliding guides 26 are slidably mounted on further orientation guides 32 perpendicularly to the feed direction“A” and the above-mentioned adjustment mechanism comprises a unit 33 for adjusting the mutual distance between the sliding guides 26.
  • the adjusting unit 33 can adjust the mutual distance between the guides 26, and therefore between the thrust elements 35, between a minimum of 400 mm and a maximum of 2400 mm.
  • the invention achieves the set aim by overcoming the drawbacks of the prior art.
  • the solution described defines an effective alternative to the prior art solutions and, thanks to the kinematic mechanisms which control the thrust elements, it is simpler and more efficient to perform the movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

La présente invention concerne une machine (1) pour meuler des dalles comprenant un transporteur (12) conçu pour déplacer une pluralité de dalles le long d'une direction d'alimentation (A) d'un poste d'alimentation (I) à un poste de sortie (U) passant à travers un poste de meulage (R) ; une pluralité de roues de meulage (11) faisant face au poste de meulage (R) et conçues pour meuler une ou plusieurs dalles ; des moyens de positionnement (25) agissant sur un poste d'étalonnage (C) et conçus pour ajuster l'orientation d'une ou de plusieurs dalles par rapport à la direction d'alimentation (A) respective. Les moyens de positionnement (25) comprennent des éléments de poussée (35) mobiles en rotation entre une position de mise en prise dans laquelle les éléments sont conçus pour entrer en contact contre un bord d'extrémité d'une dalle positionnée dans le poste d'étalonnage (C), et une position de désolidarisation dans laquelle ils sont conçus de façon à ne pas interférer avec une alimentation des dalles vers le poste de meulage (R), les éléments de poussée (35) pouvant également être transférés parallèlement à la direction d'alimentation (A) entre une position avancée et une position retirée.
PCT/IB2019/055082 2018-06-19 2019-06-18 Machine pour meuler des dalles WO2019244021A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19742487.2A EP3810366B1 (fr) 2018-06-19 2019-06-18 Machine pour meuler des dalles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000006453 2018-06-19
IT102018000006453A IT201800006453A1 (it) 2018-06-19 2018-06-19 Macchina per la rettifca di lastre

Publications (1)

Publication Number Publication Date
WO2019244021A1 true WO2019244021A1 (fr) 2019-12-26

Family

ID=63579688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/055082 WO2019244021A1 (fr) 2018-06-19 2019-06-18 Machine pour meuler des dalles

Country Status (3)

Country Link
EP (1) EP3810366B1 (fr)
IT (1) IT201800006453A1 (fr)
WO (1) WO2019244021A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112372418A (zh) * 2020-11-16 2021-02-19 株洲华信精密工业股份有限公司 一种机械配件的自动化磨毛边装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1338381A2 (fr) * 2002-02-15 2003-08-27 BIESSE S.p.A. Machine à usiner des panneaux du bois ou matière similaire
EP1649976A1 (fr) * 2004-10-19 2006-04-26 BIESSE S.p.A. Dispositif d'usinage du bord de plaques de verre, de marbre, de pierre ou de céramique ou similaire
DE102007028786A1 (de) * 2006-06-23 2007-12-27 Biesse S.P.A. Vorrichtung zum Fördern von Holzplatten oder dergleichen
WO2016207814A1 (fr) * 2015-06-23 2016-12-29 Ancora S.P.A. Machine de meulage pour éléments en forme de plaque, en particulier des tuiles et des plaques en céramique, des pierres naturelles, du verre, ou similaires

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1338381A2 (fr) * 2002-02-15 2003-08-27 BIESSE S.p.A. Machine à usiner des panneaux du bois ou matière similaire
EP1649976A1 (fr) * 2004-10-19 2006-04-26 BIESSE S.p.A. Dispositif d'usinage du bord de plaques de verre, de marbre, de pierre ou de céramique ou similaire
DE102007028786A1 (de) * 2006-06-23 2007-12-27 Biesse S.P.A. Vorrichtung zum Fördern von Holzplatten oder dergleichen
WO2016207814A1 (fr) * 2015-06-23 2016-12-29 Ancora S.P.A. Machine de meulage pour éléments en forme de plaque, en particulier des tuiles et des plaques en céramique, des pierres naturelles, du verre, ou similaires

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112372418A (zh) * 2020-11-16 2021-02-19 株洲华信精密工业股份有限公司 一种机械配件的自动化磨毛边装置
CN112372418B (zh) * 2020-11-16 2023-08-04 株洲华信精密工业股份有限公司 一种机械配件的自动化磨毛边装置

Also Published As

Publication number Publication date
EP3810366B1 (fr) 2022-10-05
IT201800006453A1 (it) 2019-12-19
EP3810366A1 (fr) 2021-04-28

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