• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A veneer lathe (10) having a fixed roller (20), a slidably positionable pressure roller (30) and a slidably positionable following roller (28). A following roller (28) positioning means selectably positions the following roller with respect to the fixed and pressure rollers in response to a following roller position control signal. The rollers are rotated against a block (26) positioned between the rollers, thereby rotating the block with respect to a knife (44), which peels veneer from the block. The pressure roller (30) is slidably positionable in a first plane, and the following roller (28) is slidably positionable into a selected location in a second plane, thereby affording precise control over peeling of the block. A knife positioning means controllably advances the knife into the rotating block in response to a knife position control signal. A knife angling means controllably positions the knife at a selectably variable angle with respect to the rotating block (26) in response to a knife angle control signal.
    公开号:SU1637660A3
    申请号:SU874203351
    申请日:1987-09-23
    公开日:1991-03-23
    发明作者:Линдсей Вилсон Гарри
    申请人:Дьюранд-Раут Индастриз Лтд (Фирма)；
    IPC主号:
    专利说明:

    The speed of rotation of these rollers is not the same. Optimizing this ratio improves the quality of the cut veneer. 5 hp ff, 4 ill.
    The invention relates to wood processing 5 namely, to means for producing veneer.
    The aim of the invention is to improve the quality of the veneer by providing precise control of the geometric ratio between the revolving block and the knife when the position of the track roller changes relative to the fixed and pressure rollers as a function of the position of the fixed or pressure roller j and also in response to the control signal of the position of the track roller .
    Figure 1 shows a headless spline-cutting machine; figure 2 is the same cross section; on fig.Z - the same, front view; Fig. 4 is a control system diagram.
    A veneer cutting machine contains a frame 1 with a pair of opposite side frame elements 2 and 3, which are placed on supports 4 and 5.
    I
    Fixed roller 6 is installed with
    rotatable in bearings 7 and fixed between the frame elements 2 and 3 to bring into rotation with the help of drive means a fixed roller 6, namely a hydraulic motor 8, on the upper surface of the edging block 9. The follower roller 10 is installed with the possibility of rotation in bearings 11 at the end of the support bar 12 of the follower roller. The opposite ends of the support rod 12 of the follower roller 10 are mounted with a slide in the channel elements 13, which are rigidly attached to opposite inner surfaces of the frame elements 2 and 3, respectively, so that the sliding movement of the support rod 12 follows the roller 10 in the channel elements 13 causing The following roller 10 goes back and forth in the first plane and is defined by the orientation of the channel elements 13. A pair of hydraulically driven actuating cylinders 14 inserted between the frame 1 of the key-cutting machine and ontsami support rod 12 follower roller 10 may
    five
    50
    0
    5 o 5 Q
    connect controlled, protrusion or retraction in response to the control signal of the position of the follower roller 10. Supporting rod 12 of the follower roller 10. The opposite channel elements 13 and hydraulic cylinders 14 cause the mechanism to change the position of the follower roller 10, i.e. to selectively position the follower roller 10 relative to the fixed roller 6 due to the controlled engagement of the cylinders 13, which exit and retract, creating a sliding movement of the support rod 12 of the follower roller 10 to a predetermined position in the first plane mentioned above.
    The pressure roller 15 is likewise supported rotatably in bearings 16 at the end of the support rod 17 of the pressure roller. The opposite ends of the support rod 17 of the pressure roller 15 are slidably mounted in the channel elements 18, which are rigidly attached to opposite inner surfaces of the frame elements 2 and 3, respectively, so that the sliding movement of the support rod 17 of the pressure roller 15 within the channel elements 18 causes the pressure roller the roller 15 to walk forward and backward in the second plane, determined by the orientation of the channel elements 18. A pair of hydraulic actuating cylinders 19 installed between the frame 1 of the spo onareznogo machine and the end of the support rod 19 of the pressure roller 15 can controllably be included in extension and retraction in response to a control signal. The support rod 19 of the pressure roller 15, the opposite channel elements 18 and the hydraulic cylinders 19 provide a mechanism for changing the position of the pressure roller for selectively placing the pressure roller 15 relative to the fixed roller 6 due to the controlled engagement of the cylinders 19 for extending or retracting and sliding the base movement ptangi 17 of the pinch roller 15, the ax and the roller 15 within the aforementioned
    above the second plane. An important distinction of the invention is that due to such a device, the follower roller 10 can be placed at any given place in the first plane mentioned above, regardless of the position of the pinch roller 15.
    Follower Drive & namely, the hydraulic motor 20, is intended to provide rotational movement of the follower roller 10 along the surface of the block 9.
    20
    the roller, namely the hydraulic motor of the blade support bar 23, and with it the gule 21, is intended to provide rotational movement of the pressure roller 15 on the surface of the block 9. Separate hydraulic circuits are used to operate each of the engines 8.20 and 21. In accordance with this the fixed roller 6 can be driven with the first speed, while the follower roller 10 is driven with the second growth and the pressure roller 15 is driven with the third speed. Such variable speed control is advantageous because the rotational speed of block 9 is different at different points around the circumference, since the veneer from block 9 is spirally removed, and not exactly round. Thus, each roller 6, 10 and 15 itself can determine its own rotational equilibrium velocity relative to the rotating unit 9 in order to prevent
    35
    and knife 21, within channel elements 24. Knife support rod 23, corresponding channel elements 24 and hydraulic cylinders 26 thus condition the mechanism of controlled knife feed for controlled advancement of knife 21 into rotating unit 9 in response to the position control signal knife 21 „
    The radius of curvature of block 9 gradually decreases as block 9 is smoothed. Accordingly, if the knife is held in a fixed position, which is usually what is done, the angle between the knife 21 and block 9 gradually changes as the layer is cut off from block 9. The angle between the knife 21 and the block 9 is preferably controlled in order to maintain a constant predetermined knife friction (i.e. the pressure
    in the part of the cutting surface of the knife 21 that contacts the veneer, as it is cut from the block 9) and guaranteed to cut the veneer of uniform thickness from the block 9. In a preferred embodiment, the means for adjusting the knife angle, namely the hydraulic cylinder 27 inserted between the base of the veneer and the knife carriage 25, is intended for the controlled positioning of the knife in response to the control signal of the angle of the knife 21 with a predetermined variable angle relative to the rotating unit 9. In particular, the controlled The cylinder 27 causes the carriage 25 to move between the positions shown by the solid and dotted lines CJ in Fig. 2, thereby facilitating the control of the angle between the knife 21 and the block 9 and ensuring that the veneer is of uniform thickness from the block. 9 In the absence of means for comparing Ztl
    no slipping of the rollers 6, 10 and 15 in block 9, which happens when the rotational speed changes relative to the speed of any of the rollers and 15 the knife 22 is located in the area of the fixed roller 6 for cutting veneer from block 9 and the cylinders 14 and 19 are controlled to move rotating presser and follower rollers 10 and 15, as well as on block 9 towards the fixed roller 6 and the knife 22o. The knife 22 is fixed on the end of the knife support bar 23, the opposite ends of which are installed with the possibility of sliding in a pair of channel elements 24. Canal e elements 24 supporting the rod 23 the knife 21 in turn is rigidly affixed to a knife carriage 25. The carriage 25 is mounted cutlery pivotally between the opposed inner surfaces 660. 6
    frame elements 2 and 3. The sliding movement of the support bar 23 of the knife 21 in the channel elements 24 causes the knife 21 to extend or retract with respect to the block 9. This is done by means of hydraulic actuating cylinders 26 which are located between the knife carriage 25 and a knife support rod 23, so that due to the controlled activation of the cylinders 26 in response to the control signal of the position of the knife 21, extension or retraction occurs
    0
    0
    r knife support bar 23, and with it 5
    0
    five
    and knife 21, within channel elements 24. Knife support rod 23, corresponding channel elements 24 and hydraulic cylinders 26 thus condition the mechanism of controlled knife feed for controlled advancement of knife 21 into the rotating unit 9 in response to the knife position control signal 21
    The radius of curvature of block 9 gradually decreases as the block 9 is deflated. Accordingly, if knife 21 is held in a fixed position, which is usually what the angle between knife 21 and block 9 gradually changes as the layer is cut from block 9. The angle between the knife 21 and the block 9 are preferably controlled in order to maintain a fixed knife friction constant (i.e. the pressure
    0
    five
    in the part of the cutting surface of the knife 21 that contacts the veneer, as it is cut from the block 9) and guaranteed to cut the veneer of uniform thickness from the block 9. In a preferred embodiment, the means for adjusting the angle of the knife, namely the hydraulic cylinder 27, inserted between the base of the veneer machine and knife carriage 25, is intended for controlled positioning of the knife in response to the control signal of the knife angle 21 with a predetermined variable angle relative to the rotating block 9. In particular, controlled by The cylinder 27 causes the knife carriage 25 to move between the positions shown by the solid and dashed lines in Figure 2, thereby facilitating control of the angle between the knife 21 and the block 9 and guaranteeing the removal of veneer of uniform thickness from the block 9 V lack of funds for comparing ztl
    0
    knife 21, the thickness of the veneer may vary, the veneer may be torn, since the angle between the knife and the RO unit 9 varies.
    The first means of measuring the position of the roller, namely the linear encoders 28, is made respectively on the cylinders 14 to measure the position of each cylinder 14, and thus the position of the follower roller 10 and generate a signal of the position of the follower roller 10. The second means of measuring the position of the roller, and It is the linear encoders 29, performed on the cylinders 19, respectively, for measuring the position of each cylinder 19, and thus the position of the pressure roller 15 and outputting the output signal of the position of the pressure roller 15. Both output signals of the position are received by the signal processing means, i.e. microcomputer 30, which generates the tracking position control signal using servo motors 31 as a function of both output signals, thereby maintaining the preferred orientation of block 9 and rollers 10, 15 for optimal cutting of veneer from block 9. The cylinders 26 and 27 are provided with similarly linear encoders (not shown) which produce output signals received by the microcomputer 30 and representing the corresponding position and angle of the knife 21 relative to b eye 9, whereby facilitated continuously variable control of the knife position and knife angle 21, 21 by generating said control signals.
    A series of input parameters representing one or more predetermined operating modes of the machine 10, such as the knife angle 21 relative to the block 9. can be entered into the microcomputer 30 from the control panel 32 in order to activate the microcomputer 30 to change the control signal of the follower roller 10, control knife position signal 21 and / or knife angle control signal 21 so that the machine goes to a predetermined mode of operation.
    The machine works as follows. During operation, the microcomputer 30 generates suitable control signals for retracting the cylinders 14, 19 and 26, thereby producing
    0
    five
    0
    five
    0
    five
    0
    five
    0
    five
    the sliding retraction of the follower 10 and the presser 15 rollers and the knife 21 from the fixed roller 6. When the three rollers 10,15 and 6 are far enough from each other, the fresh unit 9 is loaded into the working position in a known manner over the rotating presser 15 and the follower 10 rollers so that the block 9 is held rotatably on the presser 15 and the next 9 rollers. The microcomputer 30 then generates the appropriate control signals for pushing the cylinders 19, thereby supplying the pressure roller 15 and the block 9 to the fixed roller 6. As the roller 15 is fed, the microcomputer 30 continuously adjusts its position and position of the follow roller 10 using output signals the position of the presser 15 and the next 1E of the rollers produced by the encoders 28 and 29, and generates the corresponding control signals of the position of the track roller 10 to track the position of the track roller 10 when roller 15 as it progresses with sliding towards the fixed roller 6. That is, between the distance from the pressure roller 15 to the fixed roller 6 on the one hand, and the distance from the follower roller 10 to the fixed roller 6 on the other hand, the selected difference. In some cases, the pressure roller 15 can drive a follower roller 10 in the sense that the distance from the pressure roller 15 to the fixed roller 6 is kept smaller than the distance from the follower roller 10 to the fixed roller 6. whereas in other cases the follower roller 10 can drive the pinch roller 15 in the sense that the distance from the follower roller 10 to the fixed roller 6 is kept smaller than the distance from the pinch roller 15 to the fixed roller 6. When the block 9 touches the fixed roller 6, all three roller 6.10 and 15 n Begin to rotate the block relative to the knife 21, which cuts off from the block 9 veneers. As the veneer is cut, the microcomputer 30 generates the appropriate control signals to continue supplying the pressure roller 15 and the block 9 to the fixed roller 6. At the same time, the microcomputer 30 tracks the positions of the cylinders 14 and 19 and thereby the position of the pressure 15 and the next 1 O rollers and continuously changes the control signal of the position of the follower roller 10, ensuring the continuation of the follow up of the follower roller 10 behind the pinch roller 15. Similarly, the microcomputer 30 continuously monitors the position of the cylinders 26 and 27 and, but, the position and angle of knife 21 and changes the control signals of the knife position and knife angle 21, 21 as the output signal of the position of the pressure roller 15 functions to maintain the preferred spiral cut of uniform thickness. When the cutting operation is completed (the ending is determined by the output signal of the pressure roller 15, which indicates the position of the pressure roller 15 relative to the fixed roller 6 and thereby the amount of material left on the block 9); the follower and pressure rollers 10,15 and the knife 21 are again retracted. As soon as the next 10 and pinch rollers 15 are retracted below the fixed roller 6, the rapidly rotating core of the block 9 follows the lowest roller, namely the next roller 10. Then, from the microcomputer 30, the command is sent immediately to change the speed of the drive motor 20 of the follower roller 10, thereby helping to push the core of the block 9 out of the machine. Then, the speed of each roller can be selectively changed, which helps to load the fresh block 9 into the machine by counteracting the rotational forces of the rollers 6, 10 and 15, which may tend to throw the fresh (non-rotating) block 9 out of the machine when it first touches the rotating rollers. 6, 10 and 15 and by creating rotational forces of the rollers which tend to drive the fresh block 9 into position between the rotating rollers 6, 10 and 15 in order to quickly perform the veneer removal operation.
    权利要求:
    Claims (6)
    [1]
    1. A mono-cutting machine containing fixed, clamping and tracking rollers mounted on parallel axes of rotation, and these axes are associated with corresponding drive means, while the axis of rotation of the fixed roller does not coincide with the plane passing through the axes of rotation of the clamping and trace -. rollers, knife with knife placement means installed in the area of the fixed roller, a mechanism for changing the position of the rollers, including actuating cylinders of the follower and pressure rollers, characterized in that, in order to improve the quality of veneer, the metric ratio between the displaced block and the knife when the position of the follower roller changes relative to the fixed and clamping
    rollers as a function of the position of the fixed or pressure rollers, as well as in response to the control signal of the position of the follower roller, it is provided with measuring means for the position of the pressure and follower rollers, as well as a control unit, and the mechanism for changing the position of the rollers is made as a means for changing the position of the pressure roller and independently associated with the latter means for changing the position of the follow roller and the corresponding actuating cylinders, and the inputs of the control unit are connected respective inputs of the position measuring means and the pressing roller follower and the output control unit is connected to the inputs of slave cylinder means changes the position servo and the pinch rollers.
    [2]
    2. The machine according to claim 1, characterized in that each means for changing the position of the follower and pressure rollers is made in the form of a corresponding pair of channel elements, on which the axis of the corresponding roller is rotatably fixed, and this pair of channel elements is associated with the corresponding executive cylinders.
    eight
    7
    ; /
    P,
    Yu
    Fig
    five
    0
    five
    0
    [3]
    3. The machine according to claim 1, which differs in that the means for placing the knife is made in the form of a mechanism for controlling the supply of the knife to the revolving unit and means for changing the position of the knife, the output of the latter being connected to the corresponding input of the control unit, and the corresponding output of the control unit is connected to the input of the controlled mechanism
    knife feed into the abacus block, i
    [4]
    4. Machine on PP. 1 and 3 are provided by the fact that the means for placing the knife is provided with a mechanism for changing the angle of installation of the knife and means for measuring the angle of installation of the knife, and the output of the latter is connected to the corresponding input of the control unit, the corresponding output of which is connected .
    [5]
    5. Machine pop.1, characterized in that the corresponding inputs of the control unit are connected to the inputs of the driving means of the axes of the fixed, pressing and tracking rollers.
    [6]
    6. The machine pop. 1, which differs from the fact that it controls the remote control.
    I
    /
    1637660
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1637660A3|1991-03-23|Veneer-cutting machine
    US4979120A|1990-12-18|Control system for automatic adjustment of lathe knife pitch
    US5143129A|1992-09-01|Apparatus for adjusting the pitch angle of a knife blade in a veneer lathe
    US5333658A|1994-08-02|Veneer lathe
    US3994326A|1976-11-30|Grooving machine
    CA1291695C|1991-11-05|Large diameter nose bar roll apparatus for veneer lathe with automatic knife gap adjustment during peeling
    US4396049A|1983-08-02|Backup roll arrangement for wood veneer lathe
    US5927360A|1999-07-27|Rotary veneer lathe
    CA1209388A|1986-08-12|Milling machine
    JPH05337906A|1993-12-21|Continuous cutter for wood working and cutting method and device thereof
    US4506714A|1985-03-26|Veneer lathe
    JP3233422B2|2001-11-26|Method for selecting cutting edge angle of blade and grinding device for blade
    US5535652A|1996-07-16|Lathe apparatus
    US2355512A|1944-08-08|Machine for manufacturing splints for matches
    US3750725A|1973-08-07|Veneer slicer machine
    US4732183A|1988-03-22|Method and apparatus for peeling veneer
    JPH03161112A|1991-07-11|Device for adjusting position of roller guide
    JP3207250B2|2001-09-10|Turning method of raw wood in veneer lace
    EP0066318A1|1982-12-08|A double-sided tenoner
    US4049171A|1977-09-20|Adjustable roll slicing system
    KR20210103881A|2021-08-24|Stone cutting machine for adjustable angle of cutting area
    KR102370382B1|2022-03-04|Stone cutting machine for adjustable angle of cutting area
    JP3992777B2|2007-10-17|Veneer lace
    EP0758942A1|1997-02-26|Automatic tangential cutting system
    SU603503A2|1978-04-25|Machine for turning articles with rotating multiblade tool
    同族专利:
    公开号 | 公开日
    CN87106474A|1988-04-13|
    FI874168A0|1987-09-23|
    FI91223C|1994-06-10|
    CN1007047B|1990-03-07|
    FI91223B|1994-02-28|
    ES2017740B3|1991-03-01|
    DE3764234D1|1990-09-13|
    AU7687087A|1988-03-31|
    EP0265310B1|1990-08-08|
    AT55310T|1990-08-15|
    KR880003720A|1988-05-28|
    BR8704872A|1988-05-17|
    CA1271113A|1990-07-03|
    JPS6384901A|1988-04-15|
    NZ221468A|1989-12-21|
    JPH069805B2|1994-02-09|
    FI874168A|1988-03-25|
    EP0265310A1|1988-04-27|
    US4781229A|1988-11-01|
    AU583192B2|1989-04-20|
    KR900006225B1|1990-08-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2517851C2|2012-07-05|2014-06-10|Федеральное государстенное бюджетное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет"|Instrument to measure angles of saw blades|US1745890A|1926-11-01|1930-02-04|Laminated Materials Company Lt|Drive and control mechanism for veneer lathes and the like|
    DE470554C|1927-08-25|1929-01-19|Bernhard Hoitz Dipl Ing|Wood peeling machine|
    US1951834A|1932-06-02|1934-03-20|James F Mccarroll|Veneer cutting machine|
    US3136095A|1960-12-12|1964-06-09|Norton Co|Machine for grinding large hollow cylinders|
    US3244206A|1963-03-08|1966-04-05|Industrial Nucleonics Corp|Control apparatus for a veneer lathe|
    DE1210976B|1964-10-02|1966-02-17|Roller Fa A|Device for automatic cutting angle adjustment on veneer peeling machines|
    FR2464773B1|1975-09-05|1983-03-04|Renault|
    GB1548399A|1975-09-05|1979-07-11|Lion Match Co Ltd|Veneer-peeling machines|
    SU821149A1|1980-01-10|1981-04-15|Центральный Научно-Исследовательскийинститут Фанеры|Veneer-stripping machine|
    US4287462A|1980-05-13|1981-09-01|Unico, Inc.|Veneer lathe control system|
    US4380259A|1981-01-12|1983-04-19|The Coe Manufacturing Company|Veneer lathe apparatus and method using independently adjustable powered back-up roll|
    US4381023A|1981-02-26|1983-04-26|The United States Of America As Represented By The Secretary Of Agriculture|Auxiliary torque back-up roll|
    JPS6124964B2|1981-09-30|1986-06-13|Meinan Machinery Works|
    JPS5872402A|1981-10-27|1983-04-30|Uroko Seisakusho Co Ltd|Curl removing device for veneer in veneer lathe|
    JPS58114901A|1981-12-28|1983-07-08|Meinan Machinery Works|Veneer lathe|
    US4454900A|1982-06-28|1984-06-19|The Coe Manufacturing Company|Veneer lathe drive with powered rolls|
    US4494588A|1983-04-22|1985-01-22|Sun Studs, Inc.|Veneer lathe|
    US4506714A|1983-04-22|1985-03-26|Sun Studs, Inc.|Veneer lathe|
    US4557304A|1984-03-29|1985-12-10|Sun Studs, Inc.|Block stabilizer for veneer lathe|
    US4554958A|1984-05-17|1985-11-26|Arthur Temple, III|Apparatus for rounding the circumference of a log|US5215135A|1992-06-08|1993-06-01|Gerald M. Fisher|Pellitizer methods and apparatus|
    US5787949A|1995-07-07|1998-08-04|Meinan Machinery Works, Inc.|Method of controlling feed in a spindleless veneer lathe and apparatus to which the method is applied|
    CN1091406C|2000-04-20|2002-09-25|河北省文安县安里屯冷拉钢材厂|Timber turning machine without clamping shaft|
    US6857484B1|2003-02-14|2005-02-22|Noble Drilling Services Inc.|Steering tool power generating system and method|
    US6845826B1|2003-02-14|2005-01-25|Noble Drilling Services Inc.|Saver sub for a steering tool|
    MY140204A|2004-09-16|2009-11-30|Papyrus Australia Ltd|Method and apparatus for removing sheets of fibres from banana plants for the production of paper products|
    US7370680B2|2006-03-03|2008-05-13|Carlos Alberto Fernando Fezer|Lathe having movable spindles and method|
    FI123331B|2011-02-09|2013-02-28|Raute Oyj|Turning device for simple veneers|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CA000519035A|CA1271113A|1986-09-24|1986-09-24|Spindleless venner lathe|
    [返回顶部]