WO2003082711A1 - Surface d'appui d'un transporteur a courroie presentant une surface de glissement anti-frottement et anti-usure - Google Patents

Surface d'appui d'un transporteur a courroie presentant une surface de glissement anti-frottement et anti-usure Download PDF

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Publication number
WO2003082711A1
WO2003082711A1 PCT/IT2003/000177 IT0300177W WO03082711A1 WO 2003082711 A1 WO2003082711 A1 WO 2003082711A1 IT 0300177 W IT0300177 W IT 0300177W WO 03082711 A1 WO03082711 A1 WO 03082711A1
Authority
WO
WIPO (PCT)
Prior art keywords
conveyor belt
plates
plane
previous
sliding plane
Prior art date
Application number
PCT/IT2003/000177
Other languages
English (en)
Inventor
Luigi Pedrini
Original Assignee
Luigi Pedrini
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 Luigi Pedrini filed Critical Luigi Pedrini
Priority to EP03745396A priority Critical patent/EP1494940A1/fr
Publication of WO2003082711A1 publication Critical patent/WO2003082711A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
    • B65G15/62—Guides for sliding belts

Definitions

  • the invention concerns a bearing surface of a belt conveyor with anti-friction and anti-wear sliding surface, that is a plane for a belt, which, due to the configuration of the support structure of the belt itself, helps to obtain substantial durability of the.sliding surface in particular in the treatment of hard stone materials where the concentration of pressure of the tool leads to abrasion and wear of said surface.
  • the treatment of the aforementioned stone materials, and in particular of porcelain stone- ware comprises reinforced rubber fabric belts arranged to slide on planar surfaces of the structure of the machine tool in which it is used.
  • the action of the tools due to the surface involved, the material in treatment and the type of abrasive material used, is a compression of the tool on the material in treatment which in turn rests upon the underlying belt sliding upon said planar surfaces.
  • the constancy of the-working motion of the tool, of the forward motion of the belt and of the relative reciprocal position between tool, material and band, i.e. the underlying planar sliding surface leads to the concentration of wear in certain posi- tions along the planar surface, from which derive various operating problems .
  • a first problem comes with the consumption of the planar surface, mainly in the mid-point of the field of treatment of the tool, since the material is always initially centred at said mid-point, as in the case of smoothing and/or polishing. From this the passage to a greater transversal size of the material in treatment makes it act as a bridge over the sag of said planar surface: from this there is more possibility of breaking of the material by flexing, under the strong thrust of the abrasive tool used, with the consequent shut-down of the machine and relative production losses.
  • a second problem comes from the unavoidable slight elasticity of the conveyor belt itself: the high friction between the lower surface of the belt and said planar sliding surface does not allow the belt to slide on it with uniform motion, necessary for the perfect successful treatment of the material. Indeed, there is the characteristic advancing in steps of the belt and of the material supported by it, with the consequent vibration or marbling of the surface in treatment. Also in this case, the material is discarded or requires further correction treatments. In any case, the overall costs increase significantly.
  • a sliding plane of a conveyor belt with an anti-friction and anti-wear sliding surface comprising a metal support struc- ture for the plane and thus for the conveyor belt, characterised in that said plane has at least one portion of the sliding surface of the conveyor belt, consisting of plates made from hard material, embedded in support and attachment means, as a single plate or in groups of plates, so as to compensate for the differences in thickness and/or shape and/or planarity of the plates.
  • Said support means is fixed, also in a removable manner, on said metal structure to constitute said sliding plane.
  • said support means for the single plates or the groups of plates locked with screws to the metal support structure for the plane or with removable portions of the sliding plane, in tur-n able to be fixed to said structure.
  • said support means for the single plates or groups of plates fixed with joints adapted to and even able to slide in the metal support structure for the plane or with removable portions of the sliding plane, in turn able to be fixed to said structure.
  • said group of plates made from hard material all grouped together on a single strip.
  • said plates of said group with similar plan surfaces.
  • the plates of said strip with advantageously rectangular plan shape.
  • the support and sliding surface for the belt is harder wearing to the abrasion made by the belt on it, from this it follows that the problems of surface sag known in the prior art are overcome, thus maintaining planarity with a substantial reduction in the percentage of waste due to breakage by flexing and to the irregular surface for the advancing in steps of the belt.
  • the arrangement of the plates with different width transversal to the motion of the belt allows the non-alignment of the joints, in the direction of motion of the belt, between the successive strips of plates, so as to avoid the formation of longitudinal heels on the inner surface of the belt.
  • the anti-wear material used aluminium-based ceramic
  • the construction and replacement of the strips of plates resistant to wear does not require the calibrating treatment of the strips themselves or of the portion of sliding surface of the conveyor belt, but the differences in thickness, parallelism and crowning between the two faces of the plates are compensated for at the time of production of the strip or support for the single plate.
  • Figure 1 is the perspective view of a portion of planar sliding surface of the conveyor belt, according to the invention, equipped with strips of interchangeable plates.
  • Figure 2 is the schematic plan view of a conveyor belt equipped with the aforementioned planar sliding surface, arranged on a machine tool for smoothing materi- als in sheets/plates.
  • Figure 3 is a schematic view in section III- III of figure 2, for a smoother with a head with oscillating sectors .
  • Figure 4 is a limited schematic section of a side bevelling/calibrating machine for plates, where on the left it is shown with a side-calibrating tool and on the right with a bevelling tool.
  • Figure 5 is a plan view of a single strip of plates.
  • Figure 6 is the section VI-VI of figure 5 of said strip.
  • Figure 7 is the section VII-VII of figure 5 of said strip.
  • Figure 8 is the section of a portion of said planar sliding surface with said strips of plates arranged in their seat which has already been occupied, where the softest material has more wear.
  • Figure 9 is the plan view of a strip of plates with screw attachment to the support plane.
  • Figure 10 is the plan view of single plates equipped with individual screw attachment for each plate.
  • Figure 11 is the section XI-XI of figure 9.
  • FIG 1 the portions of sliding surface of the conveyor belt in which the strips 2 of plates 3 made from material with high resistance to abrasion are inserted are indicated with 1.
  • Figure 2 shows the attachment holes 7 of the portion 1 of sliding surface at the underlying metal support structure 8 for the conveyor belt 9: the plates 2 coating the planar sliding surface of the belt 9 are applied to the face 10 of said portions 11 facing towards the belt.
  • the same figure shows the outlines 11 of the central working area of each operating head 12, Figure 3, in a smoothing machine for the stone material 13 being treated.
  • Figure 4 shows a portion of metal sliding surface, with coating plates 15 and 16, of a belt 17 for a side bevelling/calibrating machine for a ceramic plate 18 being treated.
  • the plate is treated through the cup wheel 19 being side calibrated, and being bevelled through an analogous cup wheel 20. It also shows: the metal support structure 21 for said metal portions of sliding surface 14 to constitute the planar sliding surface of the belt 17; the return branch 22 of said belt; the pressure rollers 23 and 24 of the plate being treated which, through the friction generated in the contact with the surface of the belt 17, allows the exact positioning thereof with respect to said side-calibrating and bevelling tools 19, 20.
  • Figure 5 shows the side edges 25 of the strip 2 or 4 inclined to form a dovetail guide with the seat in the relative portion of metal sliding surface 1 or 14.
  • Said strip has flat ends 26.
  • Figure 6 shows the inclined edges 27 to allow a stable clamping of the plate 3 in the material constituting said strip 2 or 4.
  • the plate 28 made from material resistant to wear has a thickness 29 different from the plate 3 which is compensated by the different thickness of the material constituting the strip. It also shows: holes 30 for the exact positioning of the plates in the mould of said strips 2 or 4.
  • Figure 7 shows a plate 31 with the face 32 embedded not parallel to the face 33 intended to support the convey- or belt.
  • figure 8 shows a plate 34 with the embedded face 35 concave, i.e. not planar to the face 33, as well as the plate
  • Figure 9 shows a strip 38 of plates 3 equipped with lowered end lug bolts 39, for attachment with screws to the metal structure 8 of the machine or to the portion of sliding surface 1 or 14, through the hole 40.
  • the attachment can advantageously take place like in the strip 41, analogous to the previous one 38, but with smaller lowered lug bolts 42, to allow greater support of the overlying conveyor belt.
  • Figure 10 shows a single plate 43, made from material resistant to abrasion, embedded in a support 44 made from material analogous to that of the aforementioned strips 2, 4, 38 or 41, also equipped with lowered lug bolts 45 for attachment with screws in the holes 46 to the metal structure 8 of the machine or to the portion of sliding surface 1 or 14.
  • the production of the strips 2, 4, 38 and 41 and of the sup- ports 44 for plates made from anti-wear material takes place by positioning of the plates in the mould, taking care to position the better face 33 at the side intended to support the sliding of the conveyor belt 9, 17, and keeping them in position with the presser through the hole 30 during moulding.
  • the material making up the strip 2, 4, 38 or 41, as well as the support 44 for the embedded plate 43 can be injection moulded plastic, also reinforced, as well as injection mouldable metal like aluminium, Zama alloy, white metal, bronze, etc., or else rubber, Bakelite and other similar materials, or even metal which can be sintered.
  • the assembly of the strips of coating plates made from anti- wear material according to the invention takes place by gluing, screw attachment or even by insertion, in the case of a dovetail guide 25, of them on the portions 1, 14 of sliding surface of the belt 9, 17 for the prearranged purpose.
  • the supports 44 for single plates 43 can be individually fixed through screws to the structure of the machine tool or to the support for the conveyor belt.
  • the conveyor belts equipped with coating of the sliding surface according to the invention have greater dimensional stability and thus less deformation in the planarity so as to make them particularly useful in typical uses with high con- centrations of forces of machines for treating stone materials and porcelain stoneware.
  • the plates of anti-wear material advantageously consist of ceramic with high content of materials resistant to wear like aluminium.
  • a suitable material is ceramic with at least 90% alumin- ium, or else widia, stellite and similar material content.
  • the sliding surface described can also advantageously be used for conveyor belts not directly used in association with specific machine tools, but will certainly be advantageous where in the operation of the conveyor belt there is localised wear of the aforementioned sliding surface. Moreover, it may also be advantageous to use the plates resistant to wear also for conveyor belts with distributed wear, but still needing fast and cost-effective maintenance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)

Abstract

Selon l'invention, le plan de glissement d'un transporteur à courroie (9, 17) présentant une surface de glissement (1, 14) anti-frottement et anti-usure comprend une structure support métallique (8, 21) pour le plan et par conséquent pour le transporteur à courroie. L'invention se caractérise en ce qu'au moins une partie de ladite surface de glissement du transporteur à courroie est constituée de plaques (3, 5) de matériau dur, incorporées dans des dispositifs de support et de fixation (2, 4, 38, 41, 44), tels qu'une plaque unique (43) ou dans des groupes de plaques (2, 4), de manière à compenser les différences d'épaisseur (29) et/ou de forme (35, 37) et/ou de planarité (32) des plaques ; lesdits dispositifs de support étant fixés (7, 25, 40, 46), également de manière amovible, sur ladite structure métallique pour constituer ledit plan de glissement. De plus, ledit plan présente lesdits dispositifs de support pour les groupes de plaques ou pour les plaques uniques bloquées à l'aide de vis, collées ou appliquées à l'aide de joints conçus pour et pouvant même glisser dans la structure support métallique (1, 8, 21) pour le plan ou à l'aide de parties amovibles (1, 17) du plan de glissement, pouvant à leur tour être fixées à ladite structure.
PCT/IT2003/000177 2002-03-29 2003-03-25 Surface d'appui d'un transporteur a courroie presentant une surface de glissement anti-frottement et anti-usure WO2003082711A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03745396A EP1494940A1 (fr) 2002-03-29 2003-03-25 Surface d'appui d'un transporteur a courroie presentant une surface de glissement anti-frottement et anti-usure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002MO000077A ITMO20020077A1 (it) 2002-03-29 2002-03-29 Piano di scorrimento di nastro trasportatore con superficie di scorrimento anti-frizione ed anti-usura
ITMO2002A000077 2002-03-29

Publications (1)

Publication Number Publication Date
WO2003082711A1 true WO2003082711A1 (fr) 2003-10-09

Family

ID=11450991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2003/000177 WO2003082711A1 (fr) 2002-03-29 2003-03-25 Surface d'appui d'un transporteur a courroie presentant une surface de glissement anti-frottement et anti-usure

Country Status (3)

Country Link
EP (1) EP1494940A1 (fr)
IT (1) ITMO20020077A1 (fr)
WO (1) WO2003082711A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006132582A1 (fr) * 2005-06-07 2006-12-14 Metso Minerals (Wear Protection) Ab Doublure resistant a l'usure
WO2011086114A1 (fr) 2010-01-15 2011-07-21 Basf Se Composés alcoxyamine substitués par des groupes phospho
WO2020168430A1 (fr) * 2019-02-21 2020-08-27 Stephenson Technologies Inc. Surface de contact de courroie munie d'inserts et système transporteur l'utilisant
WO2022104471A1 (fr) * 2020-11-18 2022-05-27 Stephenson Technologies Inc. Système de transporteur de véhicule et système de surface pour un transporteur de véhicule

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607606A (en) * 1967-05-16 1971-09-21 Coors Porcelain Co Ceramic-rubber composites
GB2107288A (en) * 1981-10-05 1983-04-27 Steatite & Porcelain Prod Ltd Impact-resistant wear plate
JPS6164608A (ja) * 1984-09-03 1986-04-03 Sumitomo Metal Ind Ltd ライナ−
US4932516A (en) * 1986-07-14 1990-06-12 Baker International Corporation Conveyor belt cradle assembly
US6270305B1 (en) * 1999-06-11 2001-08-07 Btu International, Inc. High temperature conveyor furnace with low friction conveyor travel surface

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607606A (en) * 1967-05-16 1971-09-21 Coors Porcelain Co Ceramic-rubber composites
GB2107288A (en) * 1981-10-05 1983-04-27 Steatite & Porcelain Prod Ltd Impact-resistant wear plate
JPS6164608A (ja) * 1984-09-03 1986-04-03 Sumitomo Metal Ind Ltd ライナ−
US4932516A (en) * 1986-07-14 1990-06-12 Baker International Corporation Conveyor belt cradle assembly
US6270305B1 (en) * 1999-06-11 2001-08-07 Btu International, Inc. High temperature conveyor furnace with low friction conveyor travel surface

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006132582A1 (fr) * 2005-06-07 2006-12-14 Metso Minerals (Wear Protection) Ab Doublure resistant a l'usure
AU2006255849B2 (en) * 2005-06-07 2011-04-21 Metso Sweden Ab Wear-resistant lining
US8136649B2 (en) 2005-06-07 2012-03-20 Metso Minerals (Wear Protection) Ab Wear-resistant lining
WO2011086114A1 (fr) 2010-01-15 2011-07-21 Basf Se Composés alcoxyamine substitués par des groupes phospho
WO2020168430A1 (fr) * 2019-02-21 2020-08-27 Stephenson Technologies Inc. Surface de contact de courroie munie d'inserts et système transporteur l'utilisant
WO2022104471A1 (fr) * 2020-11-18 2022-05-27 Stephenson Technologies Inc. Système de transporteur de véhicule et système de surface pour un transporteur de véhicule

Also Published As

Publication number Publication date
EP1494940A1 (fr) 2005-01-12
ITMO20020077A0 (it) 2002-03-29
ITMO20020077A1 (it) 2003-09-29

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