EP0489256B1 - Dispositif pour trancher des planches minces - Google Patents

Dispositif pour trancher des planches minces Download PDF

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Publication number
EP0489256B1
EP0489256B1 EP91118468A EP91118468A EP0489256B1 EP 0489256 B1 EP0489256 B1 EP 0489256B1 EP 91118468 A EP91118468 A EP 91118468A EP 91118468 A EP91118468 A EP 91118468A EP 0489256 B1 EP0489256 B1 EP 0489256B1
Authority
EP
European Patent Office
Prior art keywords
feed
cutter
squared timber
rollers
pressure
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.)
Expired - Lifetime
Application number
EP91118468A
Other languages
German (de)
English (en)
Other versions
EP0489256A1 (fr
Inventor
Siegmar Gönner
Heinz-Hubert Braun
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.)
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Original Assignee
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
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 Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik filed Critical Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Publication of EP0489256A1 publication Critical patent/EP0489256A1/fr
Application granted granted Critical
Publication of EP0489256B1 publication Critical patent/EP0489256B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/06—Cutting strips from a stationarily- held trunk or piece by a rocking knife carrier, or from rocking trunk or piece by a stationarily-held knife carrier; Veneer- cutting machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6579—With means to press work to work-carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9493—Stationary cutter

Definitions

  • the invention relates to a device for producing thin boards by cutting the boards from a log or squared timber without cutting according to the preamble of claim 1.
  • the invention particularly relates to means for feeding the squared timber in such a device.
  • the invention therefore provides that at least one pair of feed rollers is arranged in that region of the feed path over which the knife extends. So that the feed forces do not influence the pressure of the squared timber on the knife in any way, the or the directly in Feed roller pairs arranged in the knife extension area are preferably designed to be floating in the manner already proposed in DE-OS 37 02 909 for feed rollers arranged outside the cutting area of the machine. Since the arrangement of pairs of feed rollers on slides that are movable transversely to the feed path of the wood can be structurally difficult in this area, it is preferred here to design the feed rollers with the application of force by fluid cylinders, the cylinder spaces of which are in flow connection with one another in pairs.
  • a typical machine for the cutting production of boards from a squared timber is constructed, for example, in such a way that the knife and cutting plane lie horizontally, the counterpressure rail upstream of the knife edge being part of a support table which supports the squared timber in front of the knife from below, while the pressing device the squared timber from above against the support table and presses the knife.
  • the cutting edges of machines of the type concerned here are generally arranged at a very acute angle, for example less than 45 °, to the feed path of the squared timber.
  • This acute angle extends the extent in which the knife is in engagement with it along the feed path of the squared timber, but at the same time it makes it difficult to arrange additional feed elements in the area of the knife.
  • the invention therefore provides in such a machine that the feed rollers arranged on the knife side of the squared timber of the respectively provided feed roller pairs are overhung on one side, namely on the side of the machine to which the knife edge points.
  • the feed rollers mounted in this way engage in recesses which are provided in the support table but end shortly before the actual counter pressure bar. Accordingly, these feed rollers have a different axial extent, which decreases from the inlet area of the knife to the outlet area of the knife, the free ends of the feed rollers approximately form a line that runs parallel to the knife edge or the counter pressure rail. It has been shown that with a sufficiently stable construction with such knife-side feed rollers, sufficient feed forces can be applied to the square timber in this area.
  • the pressure device which can be pressed and pressed against the square timber on the side facing away from the knife, has, for example, a series of pressure rollers which can be individually pressurized by means of a fluid cylinder. These pressure rollers can be wrapped together by a circumferential pressure belt, the working strand of which rests on the squared timber and moves with it.
  • the pressure-side feed rollers of the pairs of feed rollers are expediently arranged opposite the knife-side feed rollers in the sequence of the pressure rollers, but their pressure controls are to be completely independent of the pressure rollers and are subject to the paired floating control with their counter rollers, as has already been described.
  • the storage of the feed rollers on the side of the pressure device generally presents no particular design difficulties. On the fly, it can also be done on both sides.
  • feed roller pairs are expediently also arranged at the machine entrance and at the machine exit, as already described in DE OS 37 02 909.
  • the description of the invention is based here on a single knife and its extent.
  • the features according to the invention can of course also be applied to any further cutting device and each additional knife which is located in the same machine or in a machine arrangement which has a succession of several cutting devices.
  • the pressure device opposite a knife on the other side of the squared timber can also be designed in the form of a knife arrangement.
  • the arrangement and configuration of the feed rollers described here as preferred for the knife side of the device then applies to each of the knife devices on both sides of the squared timber.
  • the schematic side view of a device for cutting boards from a square timber without cutting in FIG. 1 has a machine base 2 in which a support table arrangement 4 is mounted in a height-adjustable manner.
  • the support table arrangement 4 is mounted on sliding columns 6.
  • the drive for the height adjustment is not shown in detail and can consist, for example, of an electric motor-driven spindle drive.
  • a knife carrier arrangement 8 is provided in the machine base 2, which can be better seen in FIG. 3.
  • This knife carrier arrangement itself can also be designed to be height-adjustable, but a separate height adjustment of the support table arrangement and knife carrier arrangement is not necessary, as long as it is ensured that the height of the support table can be adjusted relative to the knife carrier.
  • the top of the support table arrangement 4 is designed as a flat support table 10.
  • the knife carrier arrangement also has an upper contact surface 12.
  • the support table 10 as such and the support surface 12 can best be seen in FIG. 2.
  • a squared timber 14 can be moved in its longitudinal direction along a feed path, which is indicated by arrows 16, over the support table 10 and the support surface 12 of the knife carrier arrangement is.
  • the squared timber 14 can be pressed against the support table 10 and the support surface 12 of the knife carrier arrangement 8 by means of a pressure device 18.
  • the pressure device 18 is supported in parts of the machine base 2, which, however, are not shown in the drawings.
  • the pressure device 18 has an endlessly rotating pressure belt 20, which is guided at the ends of the device around deflection rollers 22, which can also be driven.
  • a row of pressure rollers 24 is arranged above the lower run of the pressure belt 20, which abuts the squared timber 14. The suspension of these pressure rollers 24 in the pressure arrangement 18 is only indicated schematically.
  • Each of the rollers 24 can be pressed against the pressure belt and thus the squared timber by means of a fluid cylinder 26.
  • the connection between the cylinders 26 and the pressure rollers 24 is only shown by dash-dotted lines of action.
  • the pressure rollers themselves are mounted in essentially horizontal pivoting levers within the pressure device 18, so that the roller itself is provided with a certain vertical freedom of movement.
  • the height distance between the pressure device 18 and the support table or the support surface of the knife carrier arrangement 8 must be changeable in order to be able to be adapted to different thicknesses of the squared timber 14.
  • the entire pressure device 18 is therefore generally adjustable in height in the machine base 2. It is set to a certain thickness before the passage of a square timber, while when the square timber enters the space between the support table and the pressure device, the pressure rollers are then subjected to pressure are applied, which in turn are movably supported within the pressure device. It should be emphasized that the pressure rollers 24 do not have a rotary drive, since the rollers 24 only serve to press the pressure belt 20 against the squared timber 14.
  • the support table 10 and the support surface 12 of the knife carrier arrangement lie opposite one another with parallel edges 28 and 30 which form an acute angle with the direction of the feed path 16 or the axis of the square timber 14 to be processed, which is even far below Is 45 °.
  • the edge 28 of the knife carrier arrangement is the cutting edge of the knife clamped in this arrangement, the exact arrangement and type of clamping of which is not explained in the context of this description.
  • the edge 30 of the support table has a counter-pressure rail (not shown in detail) which is raised slightly from the surface of the support table and essentially serves to prevent the wood from splitting when a board is cut off by the knife.
  • the knife edge 28 is somewhat higher than the edge or counter pressure rail 30 of the support table. This difference in height essentially determines the thickness of the board to be produced. If the squared timber is moved from the right against the knife edge 28, a board is separated from the squared timber, which is carried off obliquely laterally below the support surface 12 of the knife carrier arrangement 8. It can be clearly seen that the knife edge 28 extends through a very acute angle to the feed path 16 alone in its length, in which it engages with the square timber 14, over a not inconsiderable length section of the feed path 16.
  • each pair consists of a lower feed roller 32, which is arranged below the square timber 14, and an upper feed roller 34, which is exactly opposite the lower feed roller above the square timber and the like. is arranged within the pressure belt 20.
  • This arrangement is best seen in Figure 1.
  • the lower feed rollers 32 of the pairs 32/34 are themselves driven.
  • a drive for the upper feed rollers 34 can be omitted if the deflection rollers 22 of the belt 20 are driven accordingly.
  • the feed rollers can be pressed against the square timber 16 by means of only partially indicated fluid cylinders 36, the cylinder spaces of the fluid cylinders of a pair of feed rollers being in flow communication with one another via a line 38, as indicated for the feed roller pair 32a / 34a in FIG. 3 is. It can thus exert a high clamping force by a pair of feed rollers on the square timber 14, but the exact vertical position of the pair of feed rollers is not influenced by these pressing forces and is determined solely by the square timber, the vertical movements of which the pair of feed rollers follow due to the floating design.
  • the lower feed rollers 32a, b, c are supported on one side and engage in recesses 40 in the support table 10. Their ends extend close to the counter-pressure rail 30 or the knife edge 28, with different axial lengths because of the oblique course of the knife have, so that the connecting line of its free ends runs approximately parallel to the knife 28.
  • the respective upper feed rollers 34a, b, c as can be seen from the example of the upper feed roller 34a in FIG. 3, can be supported on both sides and provided with 2 fluid cylinders 36 for pressurization in order to achieve a stable distribution of the pressure force.
  • the fluid cylinders 36 of each upper feed roller 34 are also in flow communication with one another.
  • the upper feed rollers 34 are arranged in the sequence of the pressure rollers 24 and the like. in such a way that in the area in which the feed rollers 34 are located, a feed roller 34 alternates with a pressure roller 24.
  • This exchange arrangement is intended to ensure that, despite the provision of the upper feed rollers 34, the pressure of the squared timber against the knife is still ensured with sufficient pressure distribution over the length of the knife.
  • the pressure rollers 24 alone press the squared timber 14 against the knife, while the pairs of feed rollers 32/34 clamp the squared timber firmly between them and move them forward by the drives, but in contrast to the pressure rollers 24 their vertical height can be freely moved is.
  • feed roller pairs 42 to 48 are provided in the feed area of the device and in the take-off area of the device, ie in front of and behind the knife arrangement.
  • These pairs of feed rollers which are already described in detail in DE OS 37 02 909, are used in the present arrangement essentially for the feed work of the roller pairs 32/34 and for the insertion of the squared timber into the machine and the last withdrawal of the squared timber from the machine.
  • control devices can consist of photocells, for example.
  • the feed rollers as well as the pressure rollers must be relieved of pressure. It is recognized by photocells that the leading end of a squared timber has passed a pair of feed rollers in order to then immediately apply pressure to them. Similarly, pressure must be relieved again shortly before the trailing end of a square timber leaves a pair of feed rollers.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Dicing (AREA)

Claims (7)

  1. Machine destiné à produire des planches minces en détachant les planches d'une grume ou d'une pièce de bois équarrie (14) par tranchage sans enlèvement de copeaux, cette machine comprenant une trajectoire d'avance (16) pour la pièce de bois équarrie (14), un dispositif de tranchage (4, 8) disposé d'un côté de la trajectoire d'avance (16) et comprenant une lame de tranchage (28), fixe ou pouvant être animée d'un mouvement oscillant, qui sert à détacher une planche à la fois, ainsi qu'une barre de contre-pression (30) placée en amont de la lame de tranchage (28), dont la distance au tranchant (28) de la lame, mesurée transversalement à la trajectoire d'avance (16) de la pièce de bois équarrie (14), détermine sensiblement l'épaisseur de la planche à détacher, et qui fait partie d'une table d'appui (10) servant à donner appui à la pièce de bois équarrie (14), qui peut éventuellement être réglée en hauteur par rapport à la lame (28), le tranchant (28) de la lame et la barre de contre-pression (30) formant un angle aigu avec la trajectoire d'avance (16) de la pièce de bois équarrie (14), un dispositif de pression (28) qui fait face au dispositif de tranchage (4, 8), de l'autre côté de la trajectoire d'avance (16), qui peut être pressé de haut en bas contre la pièce de bois équarrie (14) et contre le dispositif de tranchage (4, 8) qui lui fait face, ainsi qu'un moyen d'avance (32, 34) qui pousse la pièce de bois équarrie (14) contre la lame de tranchage (28) du dispositif de tranchage, le long de la trajectoire d'avance (16), moyen qui comprend au moins une paire de rouleaux d'avance (32a/34a), qui attaquent la pièce de bois équarrie (14) sur deux côtés opposés, et la serrent entre eux, caractérisé en ce qu'au moins une paire de rouleaux d'avance (32a/34a) est agencée dans la zone de la trajectoire d'avance (16) sur laquelle la lame (28) s'étend, et en ce que le rouleau d'avance (32) de la au moins une paire de rouleaux d'avance (32a/34a) ou de chaque autre paire de rouleaux d'avance (32b/34b, 32c/34c) disposée dans la zone dans laquelle s'étend la lame, qui se trouve sur le côté de la table d'appui, est monté rotatif en porte-à-faux latéralement, et est engagé dans un évidement (40) de la table d'appui (10).
  2. Machine selon la revendication 1, dans laquelle les moyens générateurs de force, qui développent la force de serrage des rouleaux d'avance (32a/34a), sont des vérins (36) alimentés par une pression de fluide, caractérisée en ce que les vérins (36) d'au moins une paire de rouleaux d'avance (32a/34a) sont montés sur des appuis solidaires du bâti et leurs chambres sont reliées entre elles par une conduite de transfert (38).
  3. Machine selon la revendication 1 ou 2, caractérisé en ce que la au moins une paire de rouleaux d'avance (32a/34a) est disposée dans le tiers côté entrée de la zone dans laquelle se trouve la lame.
  4. Machine selon la revendication 1 ou 2, caractérisé en ce que deux ou plus de deux paires de rouleaux d'avance (32a/34a, 32b/34b, 32c/34c) sont disposées dans la zone dans laquelle se trouve la lame.
  5. Dispositif selon la revendication 4, caractérisé en ce que, dans le cas de plusieurs paires de rouleaux d'avance (32a/34a, 32b/34b, 32c/34c), les dimensions axiales des rouleaux d'avance inférieurs (32) ont des longueurs qui décroissent de la zone d'entrée de la lame (28) à la zone de sortie de la lame (28), de sorte que leurs extrémités se trouvent approximativement sur une ligne parallèle au tranchant (28) de la lame.
  6. Machine selon au moins une des revendications 1 à 5, dans laquelle le dispositif de pression (18) est composé d'une succession de cylindres de pression (24) qui peuvent être pressés de haut en bas contre la pièce de bois équarrie (14), caractérisé en ce que les rouleaux supérieurs des paires de rouleaux d'avance (32/34) sont intercalés dans la succession des cylindres de pression (24).
  7. Machine selon la revendication 6, caractérisé en ce que les cylindres de pression (26) et les rouleaux supérieurs (34) des paires de rouleaux d'avance (32/34) sont embrassés par une bande de pression commune (20) qui circule le long de la pièce de bois équarrie (14).
EP91118468A 1990-12-03 1991-10-30 Dispositif pour trancher des planches minces Expired - Lifetime EP0489256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4038486A DE4038486A1 (de) 1990-12-03 1990-12-03 Vorrichtung zur schneidenden erzeugung von duennen brettern
DE4038486 1990-12-03

Publications (2)

Publication Number Publication Date
EP0489256A1 EP0489256A1 (fr) 1992-06-10
EP0489256B1 true EP0489256B1 (fr) 1994-11-09

Family

ID=6419467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118468A Expired - Lifetime EP0489256B1 (fr) 1990-12-03 1991-10-30 Dispositif pour trancher des planches minces

Country Status (6)

Country Link
US (1) US5390716A (fr)
EP (1) EP0489256B1 (fr)
AT (1) ATE113891T1 (fr)
CA (1) CA2056802C (fr)
DE (2) DE4038486A1 (fr)
FI (1) FI92918C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318083A (en) * 1991-01-30 1994-06-07 Firma Gebruder Linck Machinenfabrik "Gatterlinck" Gmbh & Co., Kg Apparatus for cutting and severing of a thin board from squared timber
DE4337430C1 (de) * 1993-11-03 1994-09-29 Linck Masch Gatterlinck Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz
AT404107B (de) * 1996-06-13 1998-08-25 Rupert Hirnsperger Vorrichtung bzw. verfahren zum spanlosen schneiden von holzlamellen und brettern
US5881786A (en) * 1997-06-10 1999-03-16 Weyerhaeuser Company Method of producing wood strips for conversion into composite lumber products
US6739228B1 (en) * 2000-09-13 2004-05-25 Peddinghaus Corporation Process for minimizing waste during processing of a length of stock
CN102114660B (zh) * 2010-12-07 2013-06-12 东莞市南兴家具装备制造股份有限公司 自动封边机的履带式压料装置
CN115213131A (zh) * 2022-07-18 2022-10-21 梨树全创科技有限公司 一种pcb板生产用一体化斜边成型装置及加工方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US405280A (en) * 1889-06-18 Pialf to theodore s
US1107810A (en) * 1909-03-24 1914-08-18 Baxter D Whitney & Son Scraping-machine.
NL3500C (fr) * 1915-06-15
US3727654A (en) * 1971-04-21 1973-04-17 Marunaka Tekkosho Inc Planer machine
DE2222694A1 (de) * 1971-04-21 1973-11-22 Marunaka Tekkosho Inc Holzschneidemaschine
CA1264433A (fr) * 1985-12-23 1990-01-16 Troels A. Jaeger Machine a fendre le bois
DE8701511U1 (fr) * 1987-01-31 1988-05-26 Gebrueder Linck Maschinenfabrik "Gatterlinck" Gmbh & Co Kg, 7602 Oberkirch, De
FR2625130B1 (fr) * 1987-12-28 1990-05-11 Martin Michel Trancheuse longitudinale a bois et installation de tranchage
JPH03254901A (ja) * 1990-03-06 1991-11-13 Marunaka Tekkosho:Kk 木工用スライサー装置
DE4029752C1 (fr) * 1990-09-20 1991-08-01 Gebrueder Linck Maschinenfabrik "Gatterlinck" Gmbh & Co Kg, 7602 Oberkirch, De

Also Published As

Publication number Publication date
EP0489256A1 (fr) 1992-06-10
FI915691A (fi) 1992-06-04
US5390716A (en) 1995-02-21
FI915691A0 (fi) 1991-12-03
ATE113891T1 (de) 1994-11-15
FI92918B (fi) 1994-10-14
CA2056802A1 (fr) 1992-06-04
DE4038486A1 (de) 1992-06-04
DE4038486C2 (fr) 1992-09-03
CA2056802C (fr) 1995-11-21
FI92918C (fi) 1995-01-25
DE59103498D1 (de) 1994-12-15

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