WO1990005050A1 - Appareil alimentateur - Google Patents

Appareil alimentateur Download PDF

Info

Publication number
WO1990005050A1
WO1990005050A1 PCT/FI1989/000202 FI8900202W WO9005050A1 WO 1990005050 A1 WO1990005050 A1 WO 1990005050A1 FI 8900202 W FI8900202 W FI 8900202W WO 9005050 A1 WO9005050 A1 WO 9005050A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
feeding apparatus
rolls
piece
set forth
Prior art date
Application number
PCT/FI1989/000202
Other languages
English (en)
Inventor
Antti Vuolle-Apiala
Original Assignee
Vuolle Apiala Antti
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 Vuolle Apiala Antti filed Critical Vuolle Apiala Antti
Publication of WO1990005050A1 publication Critical patent/WO1990005050A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/05—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways
    • B23Q7/055—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways some of the rollers being driven
    • 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
    • B27C5/06—Arrangements for clamping or feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends

Definitions

  • the present invention relates to a feeding apparatus for advancing pieces against a fixed stopper, particular ⁇ ly a feeding apparatus for advancing pieces to be spliced on a timber splicing line to a milling mechanism, said feeding apparatus comprising one or a plurality of rotatable rolls for feeding or advancing the piece to be handled.
  • An object of the invention is to provide an economical ⁇ ly feasible feeding apparatus which can be profitably operated also in connection with short pieces.
  • this object has been re ⁇ solved in a manner that a roll or rolls are driven continuously, and that for each roll there is a power unit for carrying the roll towards or away from a piece to be handled.
  • the invention provides such an arrange ⁇ ment that the power unit of each roll is controlled independently.
  • the power unit is preferably a pneumatic cylinder for providing an extremely short reaction time.
  • a pneumatic cylinder can also be controlled readily and accurately by means of per se known equip ⁇ ment. -If major forces are involved, it is also possible to use a hydraulic cylinder.
  • the power unit can simul ⁇ taneously move one or a plurality of rolls according to the position of the power unit for directing a divergent force through the action of the roll to a piece being handled.
  • the roll is driven by an electric or hydraulic motor, preferably at a constant speed of rotation, each motor preferably also rotating at least two rolls at the same time.
  • each motor preferably also rotating at least two rolls at the same time.
  • the rolls can be arranged to have unequal diameters.
  • fig. 1 shows a schematic side view of a feeding appa ⁇ ratus of the invention in a first embodiment.
  • Figs. 2 and 3 are schematic side views of a feeding apparatus of the invention in a second and a third embodiment.
  • a feeding apparatus shown in fig. 1 is intended for supplying a milling mechanism with pieces to be spliced on a timber splicing line.
  • Reference numeral 1 indicates a body portion, the upper portion thereof being provided with a set of conveyor rollers 2 for carrying pieces (not shown) to be handled.
  • the body portion 1 comprises two sections and between its sections 1a and 1b is fitted a vertically recipro- eating milling mechanism 3 provided with a cutter blade 4 for cutting the necessary splice joint profiles in both ends of the pieces.
  • the pieces to be worked are carried across the body portion from right to left in fig. 1.
  • rolls 5, 6 having a smooth steel surface, both rotated through the action of e.g. belts or chains 7 by an electric or hydraulic motor 8.
  • Rolls 5, 6 are journalled pivotably relative to the centre axis 9 of motor 8, said roll 5 being provided with a power unit 10 and roll 6 with a power unit 11 for carrying rolls 5, 6 towards or away from set of rollers 2 or a piece to be worked for initiating or stopping a feeding cycle, respectively.
  • Rolls 5, 6 are driven continuously and usually at a constant speed of rotation.
  • Power units 10, 11, which are preferably pneumatic cylinders, are used for bring ⁇ ing rolls 5, 6 together or separately into or respective ⁇ ly out of contact with a piece to be worked.
  • roll 5, 6 can be shifted by means of power unit 10, 11 in a stepless manner relative to a piece to be worked for thus affect ⁇ ing the friction force between the roll and the piece.
  • Reference numeral 12 indicates lateral buffers, whereby a piece pushed by rolls 5, 6 against a stopper (not shown) aligned with cutter blade 4 can be shifted against a lateral stopper 13, whereafter overhead rams 4 immobilize the piece for the duration of the end work ⁇ ing effected by milling machine 3.
  • the most signifi ⁇ cant difference is that the rotating direction of roll 6' (the left-hand roll in fig. 1) is reversed e.g. by means of a crossed belt or a gear 7" relative to that of other rolls 5, 6 and 5".
  • a photoelectric cell (not shown) for detecting a passing piece.
  • Power units 10, 11, 10', 11' are controlled by means of an apparatus indicated by reference A, whose construc ⁇ tion need not be described in this context as " it can be considered completely prior known.
  • a piece to be worked is brought into the feeding appa ⁇ ratus from the right in fig. 1.
  • the piece may reach the region of roll 5 at a speed higher than the periph ⁇ eral speed of roll 5, whereby there is skidding between roll and piece until the speed of a piece has deceler ⁇ ated to match the peripheral speed of roll 5.
  • the re ⁇ lative skidding between a piece and roll 5 can be ar ⁇ ranged by means of the adjustment of power unit 10 in such a manner that, when the question is about heavy pieces, the skidding does not stop until roll 6 engages the piece. With light pieces the skidding can come to a virtually immediate stop.
  • Slowing down the traveling speed of a piece can also be effected in a manner that initially roll 5 reduces the speed of a piece to match its own peripheral speed. Then roll 6, which can be smaller in diameter or which can be driven at a lower speed of rotation, reduces further the speed of a piece.
  • the purpose of slowing down the speed of a piece is to prevent the end of a piece from damaging upon its im ⁇ pact against the stopper.
  • roll 5 Upon the impact of a piece against the stopper, or possibly slightly prior to that, roll 5 is hoisted up or at least the pressure applied thereby to a piece is relieved. Following the impact, the piece may bounce slightly backwards from the stopper and this is correct ⁇ ed by allowing roll 6 and/or 5 to rotate for a certain period of time for pressing the piece tightly against the stopper. Also the compressive force of"the roll ca be slightly reduced at the same time. By virtue of their smooth steel surface, the rolls do not inflict serious surface defects on the pieces to be worked even if there were some relative skidding between roll and piece.
  • lateral buffers 12 force the piece against a lateral stopper 13 whereafter overhead rams 14 immobilize the piece for the duration of work ⁇ ing of the end of a piece effected by milling mechanism 3.
  • the stopper descends, overhead rams 14 and lateral buffers 12 release their grip and rolls 5, 6 and 5 1 are depressed, the piece advancing from right to left in fig. 1 until a photo ⁇ electric cell between rolls 5' and 6' confirms that the piece has passed this particular point.
  • roll 6' descends, stops the piece and feeds it in the opposite direction, from left to right in fig. 1, to ⁇ wards a second stopper jutting out at milling mechanism 3.
  • the feeding motion applied by roll 6' to a piece can be decelerated by adjusting power unit 10' of roll 5' in a manner that roll 5' applies a light pressure against a piece and thus produces an oppositely directed force.
  • roll 5" is hoisted completely off while roll 6' continues, possibly in relieved condition, compressing the piece against the stopper in order to eliminate possible bouncing.
  • the second embodiment of a feeding apparatus illustrated in fig. 2 differs from that of fig. 1 in the roll arrange ⁇ ments mounted downstream of milling mechanism 3 in the through-put direction of a splicing line, in other words within the region of body section 1b.
  • a left-hand roll 5" rotates in the same di ⁇ rection as roll 5'.
  • a roll 15 which is driven by roll 5' through the action of a crossed belt 16 in the opposite direction relative to rolls 5' and 5".
  • a power unit 17 for roll 15 is mounted below the set of rollers 2.
  • the operation of roll 15 corresponds to the action of roll 6' in fig. 1.
  • Roll 5" serves as an extra feeding roll.
  • Fig. 3 illustrates a third embodiment of the feeding apparatus which differs from that of fig. 2 in that roll 15 is replaced with a roll 18.
  • roll 18 In its descended po ⁇ sition, roll 18 is entirely below the top level of set of rollers 2.
  • Rolls 5" and 18 are connected together in a manner that a power unit 11" moves both rolls simultaneously.
  • Roll 5" drives through the action of an array or a chain 19 a roll 18.
  • power unit 11' is used to hoist up the rolls 15" and 18, the piece is pressed against rollers 20 and roll 18 carries the pice towards right in fig. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Crushing And Grinding (AREA)

Abstract

La présente invention se rapporte à un appareil alimentateur servant à faire avancer des pièces contre une butée fixe et en particulier à un appareil alimentateur servant à alimenter un mécanisme de fraisage (3) en pièces à rabouter sur une chaîne de raboutage de pièces de bois. Ledit appareil alimentateur comprend un ou plusieurs cylindres rotatifs (5, 6, 5', 6') pour faire avancer une pièce à usiner. Le ou les cylindres (5, 6, 5', 6') sont mus en continu. Chaque cylindre est pourvu d'une unité motrice (10, 11, 10', 11') servant à rapprocher ou à éloigner le cylindre d'une pièce à usiner.
PCT/FI1989/000202 1988-11-07 1989-11-03 Appareil alimentateur WO1990005050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI885119 1988-11-07
FI885119A FI885119A (fi) 1988-11-07 1988-11-07 Matningsanordning.

Publications (1)

Publication Number Publication Date
WO1990005050A1 true WO1990005050A1 (fr) 1990-05-17

Family

ID=8527310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1989/000202 WO1990005050A1 (fr) 1988-11-07 1989-11-03 Appareil alimentateur

Country Status (2)

Country Link
FI (1) FI885119A (fr)
WO (1) WO1990005050A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29817770U1 (de) 1998-09-23 1999-02-11 Beth Holzbearbeitungsmaschinen GmbH, 23556 Lübeck Spanabhende Werkzeugmaschine, insbesondere Holzbearbeitungsmaschine für Fenster-, Tür- und Fassadenprofile sowie Werkzeugaggregate für eine Werkzeugmaschine
WO2000051795A1 (fr) * 1999-03-01 2000-09-08 Wintersteiger Gmbh Scie alternative a cadre avec transporteur d'avance commande par programme pour le materiau a couper

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI42621B (fr) * 1965-10-22 1970-06-01 Irma Dimter
DE1921006A1 (de) * 1969-04-24 1970-11-26 Erwin Dimter Keilzinkenfraesmaschine
DE1653018A1 (de) * 1967-08-01 1971-09-02 Hombak Maschinenfab Kg Anlage zur Stirnholzverleimung mittels Keilzinken
DE2160257A1 (de) * 1970-12-08 1972-07-06 Marstrand, Anton Julius, Dipl.-Ing., Munkvoll (Norwegen) Verfahren und Einrichtung zum Anstücken von Holz
DE2203010A1 (de) * 1972-01-22 1973-07-26 Erwin Dimter Keilzinkenpresse
SE392831B (sv) * 1975-08-25 1977-04-25 Iggesunds Bruk Ab Anordning vid inmatningsbenkar for kantverk
EP0102806A1 (fr) * 1982-08-24 1984-03-14 Boardman, Susan Mary Procédé de façonnage des bouts de planchettes de bois et dispositif pour l'exécution de ce procédé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI42621B (fr) * 1965-10-22 1970-06-01 Irma Dimter
DE1653018A1 (de) * 1967-08-01 1971-09-02 Hombak Maschinenfab Kg Anlage zur Stirnholzverleimung mittels Keilzinken
DE1921006A1 (de) * 1969-04-24 1970-11-26 Erwin Dimter Keilzinkenfraesmaschine
DE2160257A1 (de) * 1970-12-08 1972-07-06 Marstrand, Anton Julius, Dipl.-Ing., Munkvoll (Norwegen) Verfahren und Einrichtung zum Anstücken von Holz
DE2203010A1 (de) * 1972-01-22 1973-07-26 Erwin Dimter Keilzinkenpresse
SE392831B (sv) * 1975-08-25 1977-04-25 Iggesunds Bruk Ab Anordning vid inmatningsbenkar for kantverk
EP0102806A1 (fr) * 1982-08-24 1984-03-14 Boardman, Susan Mary Procédé de façonnage des bouts de planchettes de bois et dispositif pour l'exécution de ce procédé

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29817770U1 (de) 1998-09-23 1999-02-11 Beth Holzbearbeitungsmaschinen GmbH, 23556 Lübeck Spanabhende Werkzeugmaschine, insbesondere Holzbearbeitungsmaschine für Fenster-, Tür- und Fassadenprofile sowie Werkzeugaggregate für eine Werkzeugmaschine
WO2000051795A1 (fr) * 1999-03-01 2000-09-08 Wintersteiger Gmbh Scie alternative a cadre avec transporteur d'avance commande par programme pour le materiau a couper
US7032486B1 (en) 1999-03-01 2006-04-25 Wintersteiger Gmbh Reciprocating saw comprising a program-controlled feed conveyor for advancing the item to be cut

Also Published As

Publication number Publication date
FI885119A0 (fi) 1988-11-07
FI885119A (fi) 1990-05-08

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