EP1613452A1 - Furniermessermaschine - Google Patents
FurniermessermaschineInfo
- Publication number
- EP1613452A1 EP1613452A1 EP04712505A EP04712505A EP1613452A1 EP 1613452 A1 EP1613452 A1 EP 1613452A1 EP 04712505 A EP04712505 A EP 04712505A EP 04712505 A EP04712505 A EP 04712505A EP 1613452 A1 EP1613452 A1 EP 1613452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- smoothing
- knife
- block
- wood
- veneer
- 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.)
- Granted
Links
Classifications
-
- 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
- B27L5/02—Cutting strips from a rotating trunk or piece; Veneer lathes
- B27L5/04—Cutting strips from a rotating trunk or piece; Veneer lathes the trunk being rotated about an axis lying outside it or about an axis which does not correspond to the axis of the trunk
Definitions
- the invention relates to a device for eccentric cutting of veneers from a wood block according to the preamble of claim 1.
- Such devices are used to cut from a block of wood thin panels, which are also called veneers.
- the process is also called knifes.
- the wood block is clamped on a bearing surface formed by a flat surface of a beam construction. This is rotatably mounted about its horizontal longitudinal axis, so that with each rotational movement a veneer is cut with a parallel to the longitudinal axis and mounted on the beam construction to be moved knife.
- Such devices are also known as Staylog knife machines.
- a tangentially rotating veneer knife machine in which four wood blocks can be clamped on a beam construction (flitch table).
- a beam construction for clamping, docking bodies with oval heads are arranged, which are mounted rotatably in the flitch table and detachably engage in grooves which are incorporated into the wooden blocks.
- DE 30 26 162 C2 describes a generic Staylog- knife machine, engage the claws for clamping a wood block in grooves in the base of the wood block.
- a clamping device is arranged with laterally engaging in the wood block claws. The claws can be swung away when the block has been cut to a certain size.
- the wood parts may get into the gap between the knife and the pressure bar of the veneer knife machine and clog it, so that they must be stopped and the gap must be cleaned. This is time consuming and deteriorates productivity accordingly.
- the ends must be processed so that the cracked areas are removed. For this it is known to straighten the ends by hand with eg axes, saws or planing. This is laborious and time consuming and associated with corresponding costs.
- the object of the invention is to equip a Staylog- knife machine so that at the first sign of erupting long sides of a wood block these can be smoothed by machine.
- the object is solved by the characterizing features of claim 1.
- the operator is motivated to start the processing of the long sides of the wood block early.
- the emergence of loose fibers and / or chips is minimized or even prevented, thus ensuring a consistently high quality veneers with high yield.
- the processing of the long sides takes place much faster than by hand, in addition, a higher work safety is guaranteed.
- the productivity of the veneer knife machine increases by up to 20%.
- FIG. 1 shows a side view of a Staylog veneer knife machine according to the invention, partly in section,
- FIG. 1 is a view of the Staylog- beam arrangement of Figure 1 from the side facing away from a tool carriage, partially cut
- Figure 3 is a representation of the geometric relationships between a knife, the Staylog- beam assembly and a wooden block
- Figure 4 is a side view of another embodiment
- Figure 5 is a view of the machine of Figure 4 on the side of the Staylog beam assembly.
- a veneer knife machine consists of a base frame 1 on which a tool carriage 2 with a knife carrier 3 is fastened on one side, here on the left, and a stay log beam arrangement 4 on the other side.
- the tool carriage 2 is mounted on two parallel rails 6 in a horizontal plane movable back and forth, as symbolized by the arrow 5.
- the tool carriage 2 is guided with guide elements 7 which are fixed to a machine frame 8, with minimal play and against rotation on the rails 6 and drivable by two first hydraulic cylinder 14.
- the knife carrier 3 On top of the machine frame 8, the knife carrier 3 is fastened with a knife 10 so that it is displaceably mounted in the direction of the arrow 9 and rotatable about an axis in the region of a downward-pointing cutting edge of the knife 10.
- the knife 10 and thus its cutting edge extend at right angles to the direction of movement of the tool carriage 2.
- the knife 10 is arranged in the left-hand side of the knife carrier 3 according to FIG. 1, which lies opposite the stay-log beam arrangement 4.
- the rotational and displaceability of the blade carrier 3 relative to the machine frame 8, which is required for the adjustment of its position relative to a pressure bar 11 described below, is ensured by various drives.
- the pressure bar 11 Below the blade 10 and parallel thereto, the pressure bar 11 is attached to the machine frame 8. Pressure bar 11 and blade 10 are adjusted in operation so that a short distance is maintained between the two.
- the staylog beam assembly 4 is mounted on the base frame 1 such that the horizontal longitudinal axis 38 of its beam structure 12 is perpendicular to the rails 6.
- the beam construction 12 is rotatably mounted between two frames 13 and connected to a drive, not shown.
- a wood block 16 can be clamped by means of clamping means, here holding claws 17 and not shown clamping jaws.
- the clamping jaws protrude in two rows parallel to the longitudinal axis 38 of the beam construction 12 from the support surface 15, wherein the rows of clamping jaws are movable towards each other and away from each other by means of suitable, not shown drives.
- the clamping claws engage in grooves which are embedded in a base of the wood block 16. The distances between the clamping jaws and the grooves are matched to one another.
- the retaining claws 17 mounted on a rotatably mounted shaft 18 on each side so that they are parallel to the longitudinal axis about an axis 38 of the beam structure 12 in a working position laterally pressed against the wood block 16 or in a rest position on the sides of the beam structure 12 are movable.
- Each shaft 18 is connected to a rotary drive, not shown.
- the veneer knife machine corresponds to the state of the art. example 1
- the device for smoothing the longitudinal sides 19 of the wood block 16 comprises a support structure 20 associated with a stay log beam arrangement 4 for a milling cutter 30.
- the support structure 20 comprises a box-shaped beam 21 of rectangular cross-section which runs parallel to the longitudinal axis 38 of the beam construction 12 and via two support arms 22 is hinged at the top of the racks 13.
- the beam 21 is pivotable about an axis parallel to its longitudinal axis via two second hydraulic cylinder 23 from a rest position to a working position and vice versa. In working position, the narrow sides of the beam 21 are approximately horizontal; Direction and position information refers to this working position below.
- first guide rails 24 are fixed, which extend between the support arms 22 parallel to the longitudinal axis over almost the entire length of the beam 21.
- movable elements 25 are guided along this back and forth, to which a carrier 26 is attached below.
- the carrier 26 is approximately horizontal and has - starting at the first guide rails 24 - in the manner of a cantilever at right angles from the beam 21 of Figure 1 to the left, that is away from the tool carriage 2.
- the length of the carrier 26 is dimensioned such that it protrudes to the left over the beam construction 12.
- two second guide rails 27 are fixed parallel to its longitudinal axis, which extend substantially over the entire length of the carrier 26.
- a vertically downwardly facing running arm 29 is movably guided over a sheet metal construction 28.
- the router 30 is guided completely movable with drive up and down.
- the milling head 31 is aligned so that its axis of rotation is parallel to the longitudinal axis of the carrier 26.
- the up and down movement of the milling cutter 30 is ensured by a first rotatably mounted threaded spindle 32 with a geared motor and a matching threaded sleeve which is connected to the milling cutter 30.
- the carrier 26 is movable along the beam 21 by means of a chain 33, the ends of which are fixed to the carrier 26 and which at one end of the beam 21 via a pinion and is deflected at the other end via a drive pinion of a geared motor 34.
- the movability of the running arm 29 is ensured by a second rotatably mounted threaded spindle 35 with a second geared motor 36 and a matching threaded sleeve which is fastened to the sheet metal construction 28.
- the entire knife machine including the device for smoothing the longitudinal sides 19 of the wood block 16 is connected to a central controller - eg a PLC (programmable logic controller) or a computer - which determines the operation of the knife machine.
- a central controller eg a PLC (programmable logic controller) or a computer - which determines the operation of the knife machine.
- the tool carriage 2 In operation, which runs with the exception of the smoothing of the longitudinal sides 19 of the wood block 16 as known from the prior art, the tool carriage 2 is initially moved back to the maximum possible distance to Staylog- beam assembly 4 - the so-called rest position. A wood block 16 is clamped on the beam construction 12 with the aid of the clamping jaws and optionally the retaining claws 19.
- the tool slide 2 is advanced by means of the first hydraulic cylinder 14 into a working position such that a small horizontal gap remains between the outermost circle of rotation of the wood block 16 and the cutting edge of the knife 10.
- the drive for the beam construction 12 is turned on, so that it is rotated with the clamped wood block 16 about its longitudinal axis 38 in the counterclockwise direction according to arrow 37 in Figure 1.
- the cut veneer sheets are transported away automatically. As soon as the beam construction 12 has reached a position in which the bearing surface 15 is at the top, the tool carriage 2 pushes a defined distance in the direction of the staylog beam arrangement 4 with the aid of the first hydraulic cylinder 14, this distance corresponding to the desired thickness of the veneer sheet.
- the wood block 16 becomes thinner and its longitudinal ropes 19 taper sharply. From these tapered longitudinal sides 19 can - as already mentioned - tear out wooden parts.
- a machine operator initiates the smoothing of the longitudinal sides 19 by pressing a specific button on the control panel. The smoothing then runs automatically: The feed of the tool carriage 8 is interrupted and the beam construction 12 moved to a 9 o'clock position, that is, the support surface 15 is perpendicular and facing away from the factory sleigh 2.
- the support structure 20 is moved with the cutter 30 from the rest position in which the support structure 20 is weggeschwenkl from the rotational range of the wood block 16 to the top right, moved to the working position.
- the milling head 31 is positioned so that it is at a longitudinal end of the Hol ⁇ block 1'6 in the correct height and distance.
- the correct horizontal distance from the longitudinal axis 38 is known from the setting and operation of the knife machine in the controller.
- the correct height can be easily calculated and thus adjusted automatically.
- the vertical distance Y of the longitudinal side 19 from the longitudinal axis 38 of the beam construction 12 can be determined according to the following formula:
- R is the distance of the axis of rotation 39 of the beam construction 12 from the cutting edge of the knife 10
- W is the distance of the bearing surface 19 from the longitudinal axis 38
- S is the horizontal distance of the axis of rotation 39 from the longitudinal axis 38.
- the values R, W and S are in the control of the knife machine from the settings and the operating data known, so that the controller can calculate the value Y and drive the milling head 31 in the correct position. In this case, the correct height is determined from the value Y minus a preselectable cutting depth T.
- the milling cutter 30 is switched on and the milling head 31 is guided along the upper longitudinal side 19 of the wood block 16, wherein the milling head engages with the cutting depth T in the longitudinal side 19;
- the first geared motor 34 is turned on and the carrier 26 is moved by means of the chain 33 along the beam 21.
- the milling cutter 30 is moved downwards by the distance 2 x (Y - T) and the milling head 31 is returned along the lower longitudinal side 19. This completes the smoothing; the cutter 30 is turned off and the support onstrutation 20 moved to the rest position.
- the drive of the beam construction 12 is turned on and the knives continue. All operations are repeated until so many veneer sheets are cut from the wood block 16 that only a minimal remnant of the wood block 16 (remainder block) is left, which can not be further cut because the knife 10 would project into the beam construction.
- the knife process is automatically stopped and the work slide 2 is returned to its rest position. The operator removes the remaining block after loosening the clamping jaws and clamps a new block of wood 16, and the cutting process starts again.
- the retaining claws 17 are moved to its rest position before the blade of the blade 10 is moved into the area where it could come into contact with the retaining claws 17.
- two vertically spaced milling 30 are guided on the running arm 29.
- both sides 19 are smoothed simultaneously after pressing the button.
- a saw or a knife is employed, the tool being oriented to be sawed or cut in a horizontal plane.
- FIGS. 4 and 5 Another embodiment of the smoothing device according to the invention is shown in FIGS. 4 and 5.
- the device for eccentric cutting of veneers largely corresponds to the above-described Example 1 with the difference that the device for smoothing with all associated parts is fixed to the blade carrier 3, which requires a modified construction.
- two support arms 40 are mounted on top of the knife carrier 3 so that their upper ends point to the left in the direction of the Staylog beam arrangement 4.
- a box-shaped carrier 41 is arranged with its longitudinal axis parallel to the cutting edge of the blade 10.
- two spaced-apart guide rails 42 are fastened parallel to the longitudinal axis of the carrier 41.
- a support frame 43 is fixed, which is movable by means of a drive 44 along the guide rails 42.
- the support frame 43 is in a rest position at one of the longitudinal ends of the knife carrier 3.
- a vertically downwards Transmitter 29 arranged with milling cutter 30, which substantially corresponds to that of the first embodiment.
- light grids 45 are slidably mounted.
- the light grids 45 are arranged in height so that they cover a horizontal area at the level of the axis of rotation of the beam construction 12. They are movable by hydraulic drives 46 in a horizontal plane.
- the operation of the smoothing of the longitudinal sides 19 proceeds as follows: As soon as the machine operator determines that the longitudinal sides 19 of the clamped wood block 16 can enter, he actuates a corresponding button on the control panel of the knife machine. This causes the feed of the tool carriage 2 is interrupted and this is moved by the first hydraulic cylinder 14 by a short, defined distance from the Staylog- beam assembly 4 away; the drive of the beam construction 12 is stopped. At the same time, the light grids 45 are moved by a certain distance in the direction of the staylog beam arrangement 4 into a measuring position.
- the measuring position is in this case set so that the outer portion of the wood block 16 is detected when it is rotated with the beam construction 12
- the drive of the beam construction 12 is then turned on at a low pace until the upper of the longitudinal sides 19 of the wood block 16 a beam of light of the light grid 45 breaks through. This means reaching the correct position of the long side 19 for smoothing.
- the milling cutter 30 is moved from the rest position into a defined, permanently adjustable working position, so that the milling head 31 is at a longitudinal end of the wood block 16 at the correct height.
- the drive of the cutter 30 is turned on and the carrying frame 43 with the parts arranged thereon along the guide rails 42 to the opposite side of the rest position.
- the upper longitudinal side 19 is smoothed with the cutting depth.
- the drive of the beam construction is turned on at low speed until no more of the light rays of the light grid 45 is broken.
- the support frame 43 with the parts disposed thereon moves along the guide rails 42 back to the rest position, and the drive of the cutter 30 is turned off.
- the light grids 45 are moved back out of the measuring position and the tool slide 2 is moved into its last position prior to the initiation of smoothing towards the stay log beam arrangement 4.
- the normal knife operation is started.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacture Of Wood Veneers (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200430123T SI1613452T1 (sl) | 2003-03-01 | 2004-02-19 | Stroj za rezanje furnirja |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10309032A DE10309032B3 (de) | 2003-03-01 | 2003-03-01 | Furniermessermaschine |
PCT/EP2004/001576 WO2004078436A1 (de) | 2003-03-01 | 2004-02-19 | Furniermessermaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1613452A1 true EP1613452A1 (de) | 2006-01-11 |
EP1613452B1 EP1613452B1 (de) | 2006-10-11 |
Family
ID=32945821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04712505A Expired - Lifetime EP1613452B1 (de) | 2003-03-01 | 2004-02-19 | Furniermessermaschine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1613452B1 (de) |
AT (1) | ATE342152T1 (de) |
DE (2) | DE10309032B3 (de) |
ES (1) | ES2275209T3 (de) |
PT (1) | PT1613452E (de) |
WO (1) | WO2004078436A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113119259B (zh) * | 2021-03-18 | 2022-05-10 | 连云港华福木业有限公司 | 一种杨桉混合层基材的生产设备及其生产方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136479B (de) * | 1960-04-14 | 1962-09-13 | Wilhelm Klein & Soehne Spezial | Verfahren und Vorrichtung zum Herstellen von Furnieren durch Messern oder Stay-log-Schaelen |
IT1149222B (it) * | 1980-03-13 | 1986-12-03 | Angelo Cremona | Perfezionamento dei dispositivi di bloccaggio del tronco utilizzabili nella sfogliatura eccentrica di quest'ultimo |
DE3426444A1 (de) * | 1983-12-23 | 1985-07-04 | Josef 8900 Augsburg Kuhn | Vorrichtung zur aufbereitung von furnierhoelzern |
US5150746A (en) * | 1991-05-17 | 1992-09-29 | David R. Webb Co., Inc. | Flitch table |
-
2003
- 2003-03-01 DE DE10309032A patent/DE10309032B3/de not_active Expired - Fee Related
-
2004
- 2004-02-19 AT AT04712505T patent/ATE342152T1/de not_active IP Right Cessation
- 2004-02-19 PT PT04712505T patent/PT1613452E/pt unknown
- 2004-02-19 EP EP04712505A patent/EP1613452B1/de not_active Expired - Lifetime
- 2004-02-19 WO PCT/EP2004/001576 patent/WO2004078436A1/de active IP Right Grant
- 2004-02-19 ES ES04712505T patent/ES2275209T3/es not_active Expired - Lifetime
- 2004-02-19 DE DE502004001735T patent/DE502004001735D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2004078436A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004078436A1 (de) | 2004-09-16 |
DE10309032B3 (de) | 2004-10-14 |
PT1613452E (pt) | 2007-01-31 |
ATE342152T1 (de) | 2006-11-15 |
ES2275209T3 (es) | 2007-06-01 |
DE502004001735D1 (de) | 2006-11-23 |
EP1613452B1 (de) | 2006-10-11 |
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