EP1074358A1 - Bearbeitungseinheit für eine Vorrichtung zur Bildung von Rändern an Holzpaneele - Google Patents

Bearbeitungseinheit für eine Vorrichtung zur Bildung von Rändern an Holzpaneele Download PDF

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Publication number
EP1074358A1
EP1074358A1 EP00830506A EP00830506A EP1074358A1 EP 1074358 A1 EP1074358 A1 EP 1074358A1 EP 00830506 A EP00830506 A EP 00830506A EP 00830506 A EP00830506 A EP 00830506A EP 1074358 A1 EP1074358 A1 EP 1074358A1
Authority
EP
European Patent Office
Prior art keywords
shafts
tool
elements
milling
tools
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP00830506A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Calvalli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCM Group SpA
Original Assignee
SCM Group SpA
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 SCM Group SpA filed Critical SCM Group SpA
Publication of EP1074358A1 publication Critical patent/EP1074358A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length
    • 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
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/10—Measures preventing splintering of sawn portions of wood

Definitions

  • the present invention relates to an operative set comprising multiple, normally parallel tool-holder shafts, destined to be applied onto known beading machines for panels for working wood and the like, preferably single-sided beading machines, and destined to execute milling operations for grinding the edges of said panels.
  • the invention more specifically relates to a set of this kind provided with a pair of tool-holder shafts, with elements assembled together, to constitute moving elements of members with integral motion, where said elements support said shafts in a parallel manner, set provided with articulation means in the manner of kinematic chains interposed between said moving elements and a machine bed, and also provided with actuators to orient or actuate the moving elements relative to the bed and allow the tools to grip onto the pieces, and lastly provided with electrical motorisation means for said tool-holder shafts.
  • milling operative sets are known, able to be installed at the leading edge on beading machines for working wooden panels, sets which are also produced by the Applicant and whose set-up requires two milling electrical spindles, i.e. shaft sets with related end tool and coaxial motor, with parallel axes, mounted on respective slides set side by side, independent and equal, which by translation bring the tool of each electrical spindle in contact with the edge of the piece to be ground.
  • the aim of the operative grinding set of the present invention is to eliminate the aforementioned drawbacks.
  • the invention as it is characterised by the claims, thus solves both the problem of obtaining an operative grinding milling set with two parallel shafts, not coaxial with the motor, with which the grinding operation can be executed on the edge mounting tools with sufficiently reduced diameter, also avoiding the undesired generation of notches due to the motion of a shaft whilst the other one is in contact, and which does not require an excessive machine length to be correctly installed within said confluence angle of the panel with the edge.
  • the idea developed hereafter achieves the aforesaid aims with a configuration of the operative set of the type mentioned which generally comprises a pair of shafts for supporting related end tools, means configuring moving elements of members moving integrally relative to a machine bed and supporting said shafts parallel to each other, means constituting kinematic chains between said bed and each moving element, actuators for activating said kinematic chains and hence for positioning the moving elements, such as to cause the engagement and disengagement of the tools from the milling of the edges of the panels, and lastly electrical motors supported by said moving elements for actuating said shafts, where in the specific case of the set of the invention the disposition is such that the two said tool-holder shafts are both supported by a single common moving element, and in that said means in the manner of kinematic chain consist of a pivot whose axis of rotation is substantially parallel to that of said shafts and on which said common moving element is articulated on said bed, so that with an angular movement of said common moving element a first tool is engaged in the milling
  • the advantages obtained by means of the present invention derive from multiple circumstances.
  • the fact that the motor is not coaxial to the shafts allows to use tools with reduced diameter, so that the set can be positioned rather forward in the sector of the confluence angle between the belt or strip to be beaded and the edge of the panel, enabling the construction of a shorter, and hence more economical, machine.
  • the single motor that actuates both shafts by means of the drive belt also represents a factor for the economic construction of the machine, for compactness and for simplicity.
  • This grinding milling operative set essentially comprises a moving element 5 articulated to the bed 6 of the machine through a rotary couple in the form of a pivot 11.
  • the moving element 5 is composed, in the present embodiment, of a set of mutually, though adjustably, integral members, such members substantially comprising a bracket 5' for commanding the rotation of the element 5, a support 5'' for the shafts 3a and 3b, with which the bracket 5' is adjustably integral through linear guides, and a base plate 5''' that sustains the support 5'' and whereto the sole electric motor 7 of the set is inferiorly flanged.
  • the base plate 5''' also houses the belt drive system 10, winding on the pulleys 12 both of the motor 7 and of the shafts 3a and 3b, a suitable ratio existing between the diameters of said pulleys.
  • the trace of the axis of the pivot 11 identifies the vertex of an isosceles triangle whose other two vertices are the traces of the axes of the shafts 3a and 3b.
  • the trace of the axis of the motor 7 is, in this planar section, on the straight line of the height relating to the base of said isosceles triangle, at the opposite side of the base relative to the vertex.
  • the plane defined by the axes of the two shafts 3a and 3b is substantially parallel, in the exclusion position of the set, to the plane of the edge 2b undergoing work, and the panels 2 transiting with velocity V along the direction X are at the opposite side of the motor 7 relative to said plane.
  • the tools 4a and 4b are mills and are located respectively at the ends of the shafts 3a and 3b; to the side of said tools 4a and 4b are two respective edge tracers or copiers 14a and 14b.
  • a double-action cylinder 8 is provided, fastened to the bed 6, for actuating the moving element 5, acting on the bracket 5'.
  • the piston 8 imparts a force F1 which tends to bring the tool 3a in contact with the edge 2b of the piece 2.
  • the tracer 14a will be adjusted flush with the counter-rotating tool 4a, by a quantity equal to the required removal; during the milling operation, under the constant action of the force F1, the set 1 will be angled, in a plane XY, by an angle "a" relative to the direction Y, i.e. "a” will be the angle between said height of the isosceles triangle and the direction Y.
  • the counter-rotating tool 4a Before the counter-rotating tool 4a exits the tail of the panel 2, which as is well known would cause its undesired trailing edge chipping, the counter-rotating tool 4a is disengaged and the tool 4b, rotating in the direction of advancement, is engaged.
  • the piston 8 reverses the force, now imparting a force F2 in the opposite direction relative to F1: the set 1 then rotates globally until settling on an inclination "b" relative to the direction Y, of opposite sign with respect to "a”, such that the tracer 14b - now adjusted flush with the tool 4b - touches the edge previously ground by the tool 3a, and in this condition the panel leaves the set 1, perfectly ground and with no trailing edge chipping.
  • the operator set 1 thus structured thus achieves its aims thanks to the mutual dispositions shown for the different elements, without having to alter the remaining structure of the existing beading machine.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP00830506A 1999-07-29 2000-07-19 Bearbeitungseinheit für eine Vorrichtung zur Bildung von Rändern an Holzpaneele Withdrawn EP1074358A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRN990026U 1999-07-29
ITRN990026 IT248727Y1 (it) 1999-07-29 1999-07-29 Gruppo rettificatore in entrata su macchine bordatrici per pannelliin legno

Publications (1)

Publication Number Publication Date
EP1074358A1 true EP1074358A1 (de) 2001-02-07

Family

ID=11407267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00830506A Withdrawn EP1074358A1 (de) 1999-07-29 2000-07-19 Bearbeitungseinheit für eine Vorrichtung zur Bildung von Rändern an Holzpaneele

Country Status (2)

Country Link
EP (1) EP1074358A1 (de)
IT (1) IT248727Y1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484501A1 (de) * 2011-02-04 2012-08-08 Homag Holzbearbeitungssysteme GmbH Wechselfräsaggregat mit zwei Fräseinrichtungen
DE102013002919A1 (de) * 2013-02-21 2014-08-21 Ima Klessmann Gmbh Holzbearbeitungssysteme Fräsaggregat
DE102014207014A1 (de) * 2014-04-11 2015-10-15 Homag Holzbearbeitungssysteme Gmbh Bearbeitungsvorrichtung und Bearbeitungsverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT249980B (de) * 1964-06-01 1966-10-25 Josef Ing Reinberg Vorrichtung zur Kantenbearbeitung von Holzteilen mittels Fräswerkzeugen
GB1232876A (en) * 1968-08-01 1971-05-19 Rye Engineering Works Ltd Improvements relating to the cutting of the end grain of wood
DE3815101A1 (de) * 1988-05-04 1989-11-16 Wilhelm Hirsch Holzbearbeitung Holzbearbeitungsmaschine
DE4107946A1 (de) * 1991-03-13 1992-09-17 Ludolf Stegherr Verfahren und vorrichtung zum fraesen von werkstuecken aus holz oder holzaehnlichem material
EP0606052A1 (de) * 1992-12-30 1994-07-13 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Bearbeitungseinheit mit zwei Spindeln für Werkzeuge zum Bearbeiten von Holzwerkstücker oder dergleichen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT249980B (de) * 1964-06-01 1966-10-25 Josef Ing Reinberg Vorrichtung zur Kantenbearbeitung von Holzteilen mittels Fräswerkzeugen
GB1232876A (en) * 1968-08-01 1971-05-19 Rye Engineering Works Ltd Improvements relating to the cutting of the end grain of wood
DE3815101A1 (de) * 1988-05-04 1989-11-16 Wilhelm Hirsch Holzbearbeitung Holzbearbeitungsmaschine
DE4107946A1 (de) * 1991-03-13 1992-09-17 Ludolf Stegherr Verfahren und vorrichtung zum fraesen von werkstuecken aus holz oder holzaehnlichem material
EP0606052A1 (de) * 1992-12-30 1994-07-13 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Bearbeitungseinheit mit zwei Spindeln für Werkzeuge zum Bearbeiten von Holzwerkstücker oder dergleichen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484501A1 (de) * 2011-02-04 2012-08-08 Homag Holzbearbeitungssysteme GmbH Wechselfräsaggregat mit zwei Fräseinrichtungen
DE102011003640A1 (de) * 2011-02-04 2012-08-09 Homag Holzbearbeitungssysteme Gmbh Wechselfräsvorrichtung mit einem Antriebsmotor
DE102013002919A1 (de) * 2013-02-21 2014-08-21 Ima Klessmann Gmbh Holzbearbeitungssysteme Fräsaggregat
EP2769816A1 (de) * 2013-02-21 2014-08-27 IMA Klessmann GmbH Fräsaggregat
DE102014207014A1 (de) * 2014-04-11 2015-10-15 Homag Holzbearbeitungssysteme Gmbh Bearbeitungsvorrichtung und Bearbeitungsverfahren

Also Published As

Publication number Publication date
IT248727Y1 (it) 2003-02-12
ITRN990026U1 (it) 2001-01-29

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