WO1992014591A1 - Procede et appareil d'usinage de pieces profilees de forme allongee - Google Patents

Procede et appareil d'usinage de pieces profilees de forme allongee Download PDF

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Publication number
WO1992014591A1
WO1992014591A1 PCT/FI1992/000052 FI9200052W WO9214591A1 WO 1992014591 A1 WO1992014591 A1 WO 1992014591A1 FI 9200052 W FI9200052 W FI 9200052W WO 9214591 A1 WO9214591 A1 WO 9214591A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpieces
shaping
port
working
work
Prior art date
Application number
PCT/FI1992/000052
Other languages
English (en)
Inventor
Pekka Leinonen
Original Assignee
Logistic Innovaatio Oy
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 Logistic Innovaatio Oy filed Critical Logistic Innovaatio Oy
Publication of WO1992014591A1 publication Critical patent/WO1992014591A1/fr

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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
    • 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

Definitions

  • the present invention relates to a method according to 5 the preamble of claim 1 for working elongated pieces into i shaped sections.
  • the pieces to be worked are transferred one by one through such a machining 10 station in which the pieces are worked longitudinally by means of shaping units so as to bestow them a desiredly shaped section.
  • the invention also concerns an apparatus according to 15 claim 7 for working said pieces into shaped sections.
  • shaped sections are made of a solid material, e.g., wood, they are made with the help of a shaping jointer or 35 spindle-type wood shaper from continuous or cut-to-length stock in a machining unit having preset fences, guides and cutter knives in a certain setup and order.
  • a shaping jointer or 35 spindle-type wood shaper from continuous or cut-to-length stock in a machining unit having preset fences, guides and cutter knives in a certain setup and order.
  • Industrial enterprises manufacturing products of shaped sections generally strive to operate with a limited number of shaped sections. Simultaneously, they aim at rapid deliveries and have no special desire to keep a fabricated product stored in their inventories. The machining apparatuses of the prior-art technology are ill suited to serve such goals.
  • the present invention provides a simple method and apparatus that can overcome the above-described problems.
  • the embodiment according to the invention is based on the use of such shaping units which can be set in two diffe ⁇ rent operating positions, namely, a free-port position and a shaping-port position.
  • a free-port position In the free-port position the unworked workpiece can pass the shaping unit without in any way touching the working tools of the shaping unit. If the workpiece is made to pass the unit when it is set in the shaping-port position, the workpiece is imparted the section shape determined by the preset adjustments.
  • the basic concept of the invention is to change the setup by switching between the shaping-port and free-port positions of the shaping unit, rather than resorting to altering the setup by changing the position of the cutter head knives as is conventional in prior-art machining techniques.
  • a free-port position in the context of this application refers to such a position of the machining unit in which a free passageway is formed for the workpiece to pass through the machining unit without getting in contact with the cursor head.
  • the passageway for the workpiece to go in the free-port position is formed between a fence member and guides spaced at a suitable distance apart from the fence member.
  • the work-port position refers to a com ⁇ plementary position, that is, such a position in which the workpiece entering the machining station is forced to meet the cutter head.
  • the workpiece is adapted to pass through the work-port passageway formed between the cutter head and said fence member.
  • the travel of the workpieces is continuous, which means that they are not shifted laterally during working, but rather, they are moved rectilinearly forward with the help of a suitable transfer device. This is made possible by virtue of an exact adjustment of the free-port and work-port positions, whereby the pattern of subsequent free-ports and work-ports, respectively, forms a contiguous and continuous track.
  • the transfer device can be any kind of a conventional conveyor such as a band or roller conveyor along which the piece is transferred forward and which also performs as the support table for the work ⁇ piece during working.
  • a conventional conveyor such as a band or roller conveyor along which the piece is transferred forward and which also performs as the support table for the work ⁇ piece during working.
  • the forward transfer operation requires, however, the use of a transfer device comprised of, e.g., drive wheel with a drive mechanism. The function of such a transfer device is described in detail in a later exemplifying embodiment.
  • a shaping machining apparatus can have a multitude of the above-described shaping units in series, all of them preset for machining a certain shaped section.
  • the automated setting of each shaping unit to the free-port or the work-port position, respectively, takes place by means of a preprogrammed control unit, even separately after each worked piece if so desired.
  • a preprogrammed control unit takes place by means of a preprogrammed control unit, even separately after each worked piece if so desired.
  • at least a number of the shaping units is in the free-port position.
  • the travel paths of workpieces in all shaping units are parallel, more specifically, the units are moved ortho- gonally to the workpiece path and in a right angle to the surface being shaped.
  • This arrangement makes it possible to configure a continuous, straight path.
  • the number of above-described shaping units is, e.g., 9 units in series
  • a single shaping apparatus can be employed, to work up to 9 different basic shapes or combinations thereof by opening a desired number of free- ports and work-ports, respectively.
  • This operation can be done in a continuous working process for a succession of workpieces so that at any time the shape can be altered, as mentioned above, even for each individual workpiece.
  • each workpiece can attain its section individually shaped to any shape of the predetermined selection of shapes set for the successive shaping units.
  • Such a change can be implemented by virtue of the method accord ⁇ ing to the invention without in any way impairing the throughput speed, and using the shaping apparatus, even at full speed provided that a sufficient gap is left between the successive workpieces travelling along
  • the machining units can be arranged to both sides of the passageway of the workpieces to the end of working the pieces from both sides, whereby all units working the same side are arranged in succession.
  • All settings of the cutter heads in the shaping apparatus are fixed for a single shape of the workpiece section, and the apparatus is permanently mounted on a carriage which also incorporates said free-port. Said carriage moves between the open/closed positions, either permit ⁇ ting the free passage of the workpiece, or alternatively, performing the working operation on the workpiece.
  • Each shaping unit can naturally be provided with required cutter heads and desired settings to work a desiredly shaped section.
  • An apparatus according to the invention can be assembled from mutually identical shaping units by connecting a desired number of them in series.
  • a shaping unit according to the present inven ⁇ tion works with higher precision than a long-spindle unit of the prior-art technology, because the shorter spindle and the smaller mass rotated on the spindle exhibits reduced tendency to torsional and lateral vibration.
  • the unsupported travel between the support table edge and the machining head is minimized in the apparatus according to the invention, thus allowing the working of pieces down to 150 mm length.
  • the apparatus has always a number of shaping units not performing a shaping operation on the workpiece being machined, so they are in the free-port position. For production of single workpieces this represents a seeming overdimensioning and overcapacity. Such disadvantages are, however, minor with respect to the option of extremely quick change of sectional shape.
  • an apparatus comprised of an assembly of shaping units are particularly accentuated when short series or possibly only a single piece must be produced. Namely, despite the short length of the production batch, the production line can be run under a preprogrammed schedule (based on orders) just as in continuous mass production.
  • the travel direction of a blank 1 to be machined is from the right to the left in the diagram.
  • the blank can be comprised of, e.g., the wood members of window sashes that are desired to be trued from two sides to produce a shaped section suited to assembled into a window sash.
  • the workpieces are fed in the assembly order of the sash, that is: lower rail, first stile, top rail and second stile.
  • the apparatus is assembled from nine shaping units in series numbered as 2...10 along the forward direction of the workpiece path.
  • Each of the units comprises a carriage 12 movable on rails 11, whereby the carriage has the actual machining unit (truing unit 13) mounted on it that further incorporates a fixed or rotating knife 14.
  • the setting of the knife 14 is adapted suitable for producing the desired sectional shape.
  • In front of the knife 14, at a distance from it, on the same carriage so as to move along with the truing unit 13 is adapted another unit 15 having a fence system and a transfer device for the workpieces.
  • the latter is comprised of drive wheels and their drive unit that provide the forward transport of the workpieces through the shaping unit.
  • the transfer device comprises an arrangement conventionally called a belt drive which has a set of three wheels forming a triangle, whereby two of the wheels are adapted parallel with the workpiece so as press against the workpiece through slots in the shaping unit, while the drive unit is connected to the third wheel.
  • a belt e.g., a toothed belt
  • Another alternative embodiment dispenses with toothed belt, but instead, has the drive wheels coated with a high-friction material such as rubber or suitable polymer and placed to both sides of the unit 15.
  • the attitude and distance of the fence system unit 15 rela ⁇ tive to the knife 14 is set according to the desired sectional shape and thickness of the workpiece to be machined, and these parameters can be changed when different stock is to be worked.
  • the truing units 13 are adapted to both sides of the travel path of the workpiece 1.
  • the sets of units 2...6 and 7...10 both sets respectively truing one side of the workpiece, are arranged in series.
  • the diagram shows the units 2, 3, 5, 6, 7, 9 and 10 set to the free- port position, while the units 4 and 8 are set to the work-port position.
  • the blanks 1 travel via passageways formed between the transfer devices 15 and the fences 16, whereby the fences push the workpieces against the drive wheels of the transfer devices.
  • the workpieces 1 travel via shaping passageways formed between the transfer devices 15 and the knives 14, whereby they are pushed against the knives by the transfer device 15 and thus are worked to the desired sectional shape.
  • the workpieces are transferred forward for the assembly of sashes or further machining of joining portions to the workpieces.
  • the components of the window sash are fed into the apparatus accurately trimmed to the desired length and in desired order of assembly, which benefit is facilitated by the invention that permits accurate machining of workpieces of appreciably shorter length than is conventionally possible in prior-art apparatuses.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention a trait à un procédé et un appareil d'usinage de pièces profilées de forme allongée. Le procédé prévoit que les pièces (1) à travailler sont transférées une par une d'un poste d'usinage (2...10) à l'autre, de manière à être façonnées aux côtes voulues par les différentes machines. Les pièces à façonner (1) sont transférées dans leur sens longitudinal selon un cheminement continu le long du poste de travail. Elles sont usinées par une série d'unités de travail (2...10) qui sont adaptées pour être transférables entre une position libre et une position travail, de telle sorte que chaque unité en position travail ne sert qu'à façonner une seule forme de profil sur la pièce qui défile le long du poste de travail. En disposant en un seul poste de travail autant d'unités (2...10) en série que le nombre de formes de profils différentes, ou de combinaisons de telles formes, que l'on veut obtenir, il est possible de sélectionner toutes les formes de profils voulues en positionnant chacune des unités de travail sur sa position libre ou sur sa position de travail.
PCT/FI1992/000052 1991-02-25 1992-02-25 Procede et appareil d'usinage de pieces profilees de forme allongee WO1992014591A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI910885A FI90639C (fi) 1991-02-25 1991-02-25 Menetelmä ja laite pitkänomaisten profiilikappaleiden työstämiseksi
FI910885 1991-02-25

Publications (1)

Publication Number Publication Date
WO1992014591A1 true WO1992014591A1 (fr) 1992-09-03

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ID=8531976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1992/000052 WO1992014591A1 (fr) 1991-02-25 1992-02-25 Procede et appareil d'usinage de pieces profilees de forme allongee

Country Status (3)

Country Link
AU (1) AU1325892A (fr)
FI (1) FI90639C (fr)
WO (1) WO1992014591A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994026486A1 (fr) * 1993-05-17 1994-11-24 Gebrüder Linck Maschinenfabrik 'gatterlinck' Gmbh & Co. Kg Procede et dispositif de fabrication de produits en bois a partir de grumes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019729A1 (de) * 1969-04-17 1970-11-05 Hurn Brothers Eng Ltd Verfahren und Vorrichtung zum Durchfuehren mehrerer Arbeiten an bestimmten Stellen eines vorzugsweise langgestreckten Werkstueckes
US3833033A (en) * 1969-04-17 1974-09-03 Hurn Brothers Eng Ltd Method and apparatus for working elongate components at successive longitudinal locations
DE2921108A1 (de) * 1979-05-25 1980-12-04 Okoma Maschf Gmbh Holzbearbeitungsmaschine zum zapfenschlagen und laengsprofilieren von rahmenhoelzern
DE3147422A1 (de) * 1981-11-30 1983-06-09 Okoma Maschinenfabrik Gmbh, 7082 Oberkochen "holzbearbeitungsmaschine zum zapfenschlagen und laengsprofilieren von hoelzern, insbesondere von fensterhoelzern"
EP0124650A2 (fr) * 1982-12-17 1984-11-14 Dimter GmbH Maschinenfabrik Machine pour travailler les deux extrémités d'objets en bois allongés
EP0281343A2 (fr) * 1987-03-04 1988-09-07 Wadkin Plc Toupie
DE3407907C2 (fr) * 1984-03-03 1989-06-22 Okoma Oberkochener Maschinen Gmbh, 7082 Oberkochen, De
EP0456850A1 (fr) * 1989-01-07 1991-11-21 OKOMA Maschinen und Service GmbH Dispositif de profilage longitudinal des pièces en bois

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019729A1 (de) * 1969-04-17 1970-11-05 Hurn Brothers Eng Ltd Verfahren und Vorrichtung zum Durchfuehren mehrerer Arbeiten an bestimmten Stellen eines vorzugsweise langgestreckten Werkstueckes
US3833033A (en) * 1969-04-17 1974-09-03 Hurn Brothers Eng Ltd Method and apparatus for working elongate components at successive longitudinal locations
DE2921108A1 (de) * 1979-05-25 1980-12-04 Okoma Maschf Gmbh Holzbearbeitungsmaschine zum zapfenschlagen und laengsprofilieren von rahmenhoelzern
DE3147422A1 (de) * 1981-11-30 1983-06-09 Okoma Maschinenfabrik Gmbh, 7082 Oberkochen "holzbearbeitungsmaschine zum zapfenschlagen und laengsprofilieren von hoelzern, insbesondere von fensterhoelzern"
EP0124650A2 (fr) * 1982-12-17 1984-11-14 Dimter GmbH Maschinenfabrik Machine pour travailler les deux extrémités d'objets en bois allongés
DE3407907C2 (fr) * 1984-03-03 1989-06-22 Okoma Oberkochener Maschinen Gmbh, 7082 Oberkochen, De
EP0281343A2 (fr) * 1987-03-04 1988-09-07 Wadkin Plc Toupie
EP0456850A1 (fr) * 1989-01-07 1991-11-21 OKOMA Maschinen und Service GmbH Dispositif de profilage longitudinal des pièces en bois

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994026486A1 (fr) * 1993-05-17 1994-11-24 Gebrüder Linck Maschinenfabrik 'gatterlinck' Gmbh & Co. Kg Procede et dispositif de fabrication de produits en bois a partir de grumes
EP0634254A1 (fr) * 1993-05-17 1995-01-18 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG Dispositif à chariot d'alimentation et procédé pour la fabrication d'articles en bois à partir de troncs d'arbres

Also Published As

Publication number Publication date
FI90639B (fi) 1993-11-30
FI910885A (fi) 1992-08-26
FI910885A0 (fi) 1991-02-25
FI90639C (fi) 1994-03-10
AU1325892A (en) 1992-09-15

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