EP1362678A2 - Machine-outil servant a l'usinage de panneaux de bois ou similaires - Google Patents

Machine-outil servant a l'usinage de panneaux de bois ou similaires Download PDF

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Publication number
EP1362678A2
EP1362678A2 EP03425267A EP03425267A EP1362678A2 EP 1362678 A2 EP1362678 A2 EP 1362678A2 EP 03425267 A EP03425267 A EP 03425267A EP 03425267 A EP03425267 A EP 03425267A EP 1362678 A2 EP1362678 A2 EP 1362678A2
Authority
EP
European Patent Office
Prior art keywords
plate
work table
machining axis
machine
tool
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Withdrawn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
EP03425267A
Other languages
German (de)
English (en)
Other versions
EP1362678A3 (fr
Inventor
Aureliano Pucci
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 EP1362678A2 publication Critical patent/EP1362678A2/fr
Publication of EP1362678A3 publication Critical patent/EP1362678A3/fr
Withdrawn legal-status Critical Current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
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/02—Machines with table
    • 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
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines

Definitions

  • the present invention relates to a machine for working wooden panels or similar workpieces.
  • the machine forming the subject-matter of this specification is called a lower vertical router or, in the jargon of the trade, "spindle moulder”.
  • This type of machine is used for various types of machining operations on wooden panels (for example, moulding or cutting tenons on crosspieces or uprights which will be used to make door or window frames) and has average productivity.
  • the machine basically comprises a horizontal work table on which the wooden panels rest and a vertical machining axis, at the side of the horizontal table, all supported by a base.
  • the machining axis comprises a motor-powered spindle, which supports and drives one or more tools designed to allow panel machining.
  • the section of the work table in the working area of the tool is mobile along an axis perpendicular to the panel feed direction so that it can adapt to cutting tools of different sizes and, when necessary, to tilting of the motor-powered spindle.
  • this section On the end of it closest to the tool, this section is equipped with an extension and guard plate lying in the same plane as the work table and facing a shaped counterplate that partly encompasses the back of the machining axis in the same plane as the work table. This makes it possible to protect the area under and near the tool (that is, the drive area and the area for adjusting the height and tilt of the machining axis) thanks to the matching shapes of the plates.
  • the two plates also allow the part of the work table close to the tool to be adapted to tools of different sizes and to the movements of the bilateral fences when adjusting the cutting depth. This provides a larger working surface for supporting the panel around the tool.
  • the edge of the extension and guard plate that is in contact with the counterplate consists of two straight-line segments parallel to the fences: the Applicant has found that this set-up may be dangerous for the operator especially when the extension and guard plate and the fences are moved towards each other (the movement being performed manually or with the aid of a servomechanism) to form a "crushing" area. Thus, an extraneous object or, worse still, the operator's hand, may get trapped by the "shearing" effect created in the space between the plate and the fences, resulting in serious damage or injury.
  • the aim of the present invention is to overcome the above mentioned drawback by providing a machine for working wooden panels or similar workpieces structured in such a way as to improve the design of the area close to the cutting tool to make it safer, without significantly altering the machine's general structure.
  • a machine for working wooden panels or similar workpieces comprising: a horizontal work table on which the wooden panel rests; a vertical machining axis, at the side of the work table and presenting at least one tool for working on the panel; a pair of fences, one on each side of the machining axis, adjustably mounted relative to the cutting tool, perpendicular to the work table and designed to define the position at which the panel stops relative to the tool and to guide the panel towards the tool in a feed direction.
  • a section of the work table close to the machining axis is equipped with a first plate, lying in the same plane as the work table, and shaped to match at least the front circular area of the machining axis. Further, the shaped edge of the first plate extends at an angle to form a V-like figure converging on the inside of the first plate.
  • the machine labelled 2 in its entirety, is called a lower vertical router or, in the jargon of the trade, "spindle moulder".
  • the structure of the machine 2 essentially comprises:
  • the fence is made up of two halves, one on each side of the tool 5 and mobile perpendicularly to the direction in which the work table 3 extends: the adjustment of the fences (see arrows F1 of Figures 1 and 2), normally servo controlled, determines the position at which the panel 1 is stopped relative to the tool 5 (thus defining the cutting depth) and also guides the panel 1 towards the tool 5 in a feed direction indicated by the arrow A in Figure 1.
  • a section 7 of the work table 3 close to the machining axis 4 is equipped with a first plate 8, lying in the same plane as the work table 3, and shaped to match at least the front circular area of the machining axis 4.
  • the first plate 8 faces a matching second plate 9 positioned behind the machining axis 4 to form, together with the first plate 8, an element for covering the machining axis 4 under the work table 3.
  • the first plate 8 is used as a work table extension of the section 7, which can be moved (see arrow F2 in Figure 2) towards and away from the machining axis 4 in a direction perpendicular to the direction of feed A, so as to adapt to the size of the tool 5 and, when necessary, to tilting of the machining axis 4 (this adjustment may be manual or servo controlled).
  • the shaped edge of the first plate 8, facing the second plate 9, extends at an angle to form a V-like figure converging on the inside of the first plate 8.
  • the V-like profile of the first plate 8 constitutes a very useful feature since it creates an extension of the section 7 defined by two converging escape lines, labelled L1 and L2, that make it possible to remove an extraneous object T (see Figure 2) that would otherwise be trapped between the first plate 8 and the bilateral fences 6 during their adjustment movements.
  • the profile of the first plate 8 comprises a first inclined segment 8a and a second inclined segment 8b on each side of a central arc-shaped third segment 8c connected to each other without a break.
  • first segment 8a and the second segment 8b are inclined by an angle ⁇ ranging from 30° to 50°. In a preferred, non-restricting embodiment, this angle is 35°.
  • the areas 8d and 8e of the first plate 8 close to the respective corners formed by the shaped profile are inclined by an angle ⁇ and converge on the inside of the first plate 8. This facilitates sliding of the first plate 8 and avoids undesired contact with the other walls of the work table 3, thus preventing jamming during adjustments.
  • Figures 4 to 6 illustrate three different constructional solutions of the second plate 9 with an arc-shaped profile 9c that varies in radius (R1, R2, R3) according to the diameter of the tool 5 mounted on the machine.
  • the second plate 9 is shaped to match at least partly the shape of the first plate 8. That is to say, it has two inclined segments 9a and 9b that diverge away from the centre X defined by the machining axis 4: thus, when the two plates 8,9 are positioned in contact with other, the machining axis 4 is almost completely surrounded.
  • the two segments 9a and 9b of the second plate 9 are inclined by an angle ⁇ ranging from 30° to 50° and which is, preferably, approximately 35°.
  • the machine structured as described above therefore achieves the aforementioned aims thanks to the special shape of the first plate, which while maintaining its function as extension of the mobile section of the work table, is especially designed to offer added safety for the area close to the tool during adjustment of the mobile section and fences.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
EP03425267A 2002-05-14 2003-04-30 Machine-outil servant a l'usinage de panneaux de bois ou similaires Withdrawn EP1362678A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002BO000291A ITBO20020291A1 (it) 2002-05-14 2002-05-14 Macchina per la lavorazione di apparecchi in legno od assimilabili
ITBO20020291 2002-05-14

Publications (2)

Publication Number Publication Date
EP1362678A2 true EP1362678A2 (fr) 2003-11-19
EP1362678A3 EP1362678A3 (fr) 2005-06-01

Family

ID=11440137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425267A Withdrawn EP1362678A3 (fr) 2002-05-14 2003-04-30 Machine-outil servant a l'usinage de panneaux de bois ou similaires

Country Status (2)

Country Link
EP (1) EP1362678A3 (fr)
IT (1) ITBO20020291A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600268A1 (fr) * 2004-05-25 2005-11-30 SCM GROUP S.p.A. Machine à usiner des panneaux en bois ou des pièces similaires

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013571A1 (de) * 2000-03-18 2001-09-27 Leonhard Hofmann Maschinenfabr Schwenkfräsmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600268A1 (fr) * 2004-05-25 2005-11-30 SCM GROUP S.p.A. Machine à usiner des panneaux en bois ou des pièces similaires

Also Published As

Publication number Publication date
ITBO20020291A0 (it) 2002-05-14
ITBO20020291A1 (it) 2003-11-14
EP1362678A3 (fr) 2005-06-01

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