• 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:
    Two movable cutter blades (34, 35) at right angles to each other are provided opposite to two fixed blades (36, 37) at right angles to each other, one cutter blade coacting with one fixed blade and the other cutter blade coacting with the other fixed blade to cut a sheet material, e.g. wood veneer, at right angles to the plane of the sheet material. The two movable cutter blades are made to advance and retreat alternately at a predetermined timing to cut the front and rear irregular shaped edges from a sheet of wood veneer. <IMAGE>
    公开号:SU803852A3
    申请号:SU782667554
    申请日:1978-10-02
    公开日:1981-02-07
    发明作者:Мията Синдзи
    申请人:Хасимото Денки Ко Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to cutting / (equipment and can be used in industry for cutting metal, plastic and wood sheets. A device for cutting sheet material, containing two feed conveyors located one above the other, a cutting unit in the form of two coaxially arranged fixed knives and a rotary knife, periodically interacting with fixed knives, and a discharge conveyor. The disadvantage of the device is that cutting is carried out at an angle and often breaks the wood sheets. It is also known a device for cutting sheet material containing feed and discharge conveyors and a cutting unit installed between them and made in the form of three knives, one of which is stationary and the other movable and interacting with one facet of the stationary knife, and However, the device is complicated in construction. In order to simplify the design, the third knife is connected with the drive and is arranged perpendicular to the movable knife with the possibility of interaction with another edge of the stationary knife, and Weiers are placed at an angle to the feed conveyors and in the plane of movement of one of the movable knives. The drive can be made in the form of an electric motor, a crankshaft connected to an electric motor via a brake, and a lever / one arm of which is connected through a connecting rod to the crankshaft, and the other through eccentric axes with moving knives. The device can be equipped with a sensor located in front of the cutting unit and made as a series of levers placed on an axis, rollers mounted on one ends of the levers and interacting with the sheet material, and limit switches contacting with the other ends of the levers and connected to the cutting unit drive . . . , FIG. 1 shows a general view of the mouth; : The features in FIG. 2 - sheet material) in FIG. 3-6 - cutting stages.
    The device comprises a frame 1 with side posts 2, feed conveyors 3,4, a cutting unit 5 and discharge conveyors 6,7. The feed conveyors 3,4 are located above each other and on the pulleys 8 and 9 mounted in the side posts 2. The feed conveyors 4, 3 are connected to the electric motor 10 by means of chains 11 and move synchronously. Sheet material 12 may be plywood, which has been cut from timber in a thin flexible wood sheet with uneven contours of the front and rear ends (Fig. 2). The gap between the upper 3 and lower 4 conveyors is initially greater than the thickness of the sheet material, and then it decreases and becomes wound in thickness. In the middle of the feed conveyors 3,4, in front of the cutting unit 5, a sensor 13 is located to detect the uneven contours of the front and rear ends of the sheet material. Sensors can be of different types, including photoelectric. The sensor 13 can be made in the form of rollers 14 interacting with the sheet and spaced apart from each other at a certain distance in the transverse direction of the conveyors 3,4, levers 15 seated on axis 16, carrying rollers 14 at one end and interacting with other ends 17 with limit switches 18 in the junction box 19. The rollers 14 are pressed against the lower supply conveyor 4 and each roller 14, when feeding the sheet material 12, slides over the uneven front end and slides out of its uneven rear end, with each lever 15 turning in the axis axis 16 and interacts with the limit switch 18. The electrical circuit, located in the distribution box 19, comes to a working state. The electrical circuit for cutting has contacts connected to limit switches 18. Each contact is in the open state when the roller interacts with the lower conveyor 4 and in the closed state when it is in contact with the sheet material. The electrical circuit is designed so that the signal for cutting the uneven front end is applied when all the rollers hit the sheet material and thereby close all contacts in the electrical circuit, and to cut the uneven rear end when one of the rollers jumps off the sheet material. on the lower conveyor. These cutting signals are transmitted to the cutting unit with a predetermined time to drive the blades. The cutting unit 5 is placed between the feed and discharge conveyors and is made in the form of three knives 20-22,
    one of which (20) is fixed, and the other two (21 and 22) are mobile and are associated with the drive. A fixed blade 20 with two mutually perpendicular cutting edges 23 and 24 is attached to the holder 25, which is attached to the side posts 2 of the frame. Moving Knives
    21 and 22 are also attached respectively to the holders 26 and 27, which are driven by the drive along the guides 28 and 29. The movable knives 21 and 22 are arranged perpendicular to each other and symmetrically with respect to the feeding conveyors 3,4, i.e. they are located at an angle of 45 ° relative to the plane of the sheet material. Movable knives 21 and
    22 alternately interact, respectively, with alternating faces 24 and
    23 of the fixed knife 20. The cutting edge of the fixed knife faces the feed conveyors 3,4 and lies 3 planes of sheet material feed. The drive movable knives 21 and 22 may be made in the form of an electric motor 30, placed
    on frame 1, and connected by means of a belt drive 31 with an electromagnetic brake 32, which is connected by means of a chain 33 with an asterisk 34 sitting on a crankshaft 35 pivotally connected through a connecting rod 36 to a lever 37. The lever 37 is located on axis 38, and in its shoulders 39, 40, the eccentric eccentric axes 41,42 are placed on bearings, on which there are holders 26 and 27.
    The discharge conveyors 6 and 7 are located one above the other and a cut sheet 43 is fed into the gap between them. One of the cutting edges of the stationary knife 19 is located in the plane of supply of the sheet 43. In this example, the cutting edge 23 is located in the plane of sheet supply. and 7 can operate at the same speed as the feed conveyors 3,4 from another electric motor (not shown, connected to driving pulleys 44 and 45 of the outgoing conveyors.
    The device works as follows.
    权利要求:
    Claims (3)
    [1]
    The sheet material 12, cut off, for example, by a machine for the production of plywood sheets and having uneven front and rear ends, is placed with an interval on the lower feed conveyor 4. When the sheet material is moved on the lower conveyor 4, it enters the gap between the upper and lower feed conveyors 3 and 4 and straightens as the gap between them decreases. When the sheet material 12 moves, the front end of it hits the rollers 14 and causes the levers 15 to rotate around the axis 16. At the same time, the other ends of the levers, interacting as they turn with the limit switches, close the contacts. When all the contacts are closed, a signal is sent for cutting with a time delay. With further movement of the sheet material, the rollers begin to jump off the uneven rear end. At that moment, when the first part of the first role comes off its back end, its lever turns and the contacts open. The electrical circuit is designed so that when one of the contacts is opened from a state where all the contacts are closed, it is turned on again and a signal is sent to the back end segment with a time delay. Thus, the sensor makes it possible to cut off uneven front and rear ends with a minimum length and to obtain rectangular sheets with a maximum length. . The cut signal is transmitted to the electro magnetic brake 32, which is turned off for a predetermined time interval during which the power of the electric motor 30 is shifted. given to the crankshaft 35 through the belt 31, the chain 33 and the sprocket 34. When the crankshaft 35 rotates, the connecting rod 36 moves up and down, and the lever 37 rotates around the axis 38. When the lever 37 rotates, for example, counter-clockwise, the knife 21 moves away from the stationary knife 20, while the blade 22 with the holder 27 moves and, interacting with the face 23 of the fixed blade 20, cuts the sheet material 12. The reciprocating movements of the blades are possible due to the eccentric axis housed in the triple arm, i.e. when the electromagnetic brake is temporarily turned off, the crank moves up or down and the movable knives alternately interact with the cutting, facets of the fixed knife, cut, the cut ends fall into the window between the knives. After cutting the uneven rear end of the previous sheet material, the movable knives 21 and 22 occupy the position shown in FIG. 3, i.e. under the sliding knife 21, it cooperates with the cutting face 24 of the fixed knife 20, and the movable knife 22 is in the retracted position. Since the movable knife 21 blocks the passage to the next sheet material, which is fed by conveyors 3,4, the front end of the sheet material, pushing against the knife 21, tilts down, moving along it. When the cutting line of the front end is aligned with the cutting edge of the stationary knife 20, the movable knife 21 retracts, opening the passage, and the movable knife 22, moving and interacting with the cutting edge, cuts off the front uneven end (Figure 4} Cutting along a predetermined cutting line can done exactly as the cut signal is delayed according to the speed of the feeding conveyors. The cut front end falls down into the window between the blades and is removed, for example, by a conveyor. After cutting the front / end sheet material, Moving into the gap between the discharge conveyors, the movable knife 22 serves as a guide for the sheet material. When the cutting end of the slit end is aligned with the cutting edge of the fixed knife 20 (Fig. 5), the MOVING knife 22 is retracted and the movable knife 21, moving and interacting with the edge 24 of the fixed knife 20, cuts off the rear end (Fig. 6). The cut back end falls into the window between the blades and is removed. The movable knife 21, cutting off the back end, blocks the passage and takes this position until until the front end of the next l hundred dither not downwards so that the cutting line of the leading edge is aligned with the cutting edge of the fixed blade 20. Then the cycle is repeated. The cut sheet 43 moves along the discharge conveyors 6 and 7. The device can be used not only for cutting the front and rear ends, but also for defective sections with a hole, in this case the movable knife 21 cuts off the front of the defective section, and the movable knife 22 its back. The device allows you to cut off the front and rear ends of the sheet, material, or cut out the defective areas without stopping the sheet material. The formula of the invention 1. A device for cutting sheet material containing feed and discharge conveyors and a cutting unit installed between conveyors and made in the form of three knives, one of which is stationary and the other movable and interacting with one facet of the stationary knife and drive with a movable knife, in contrast to the fact that, in order to simplify the construction, the third knife is connected with the drive and is located perpendicularly to the movable knife with the ability to interact with the other edge of the fixed knife, and yery arranged at an angle to the feed conveyors and movable in the plane of one of the movable cutters. 2. The device according to item 1, about tl lchachaeshe that the drive is made in the form of an electric motor, a crankshaft, connected with
    [2]
    An electric motor through the brake, and a lever connected by one arm through the connecting rod with the crankshaft, and the other by means of eccentric axes with movable knives.
    [3]
    3. The device according to claim 1, differing from the fact that it is equipped with a sensor located in front of the cutting unit and executed as a series of levers placed on an axis, rollers mounted at one end of the levers and interacting with the sheet material and the end switches that are in contact with the other ends of the levers and are connected to the drive of the cutting unit,
     Sources of information taken into account in the examination
    1. Japanese Patent 52-44072, cl. 74 B 15, B 26 O 1/34, 1977.
    2. Accepted for Japan No. 47-40392, cl. .74 B 15, 1972.
    fug. four
    Fug.
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    同族专利:
    公开号 | 公开日
    FR2416774B1|1984-01-27|
    FI70820C|1986-10-27|
    SG48984G|1985-03-29|
    FI70820B|1986-07-18|
    JPS54108998A|1979-08-27|
    IT7828142D0|1978-09-27|
    IT1098954B|1985-09-18|
    JPS5523731B2|1980-06-25|
    US4181055A|1980-01-01|
    FI782920A|1979-08-15|
    MY8500677A|1985-12-31|
    CA1077824A|1980-05-20|
    GB2014084A|1979-08-22|
    FR2416774A1|1979-09-07|
    DE2841386C2|1986-02-20|
    DE2841386A1|1979-08-23|
    GB2014084B|1982-02-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2726521C2|2016-04-01|2020-07-14|Вмай Холланд Б.В.|Device and method of converting sheet into continuous strip|GB692783A|1950-02-03|1953-06-17|Marvin Hart|Improvements in the production of wood veneers|
    US2711792A|1951-05-01|1955-06-28|Us Plywood Corp|Veneer clippers|
    US2793662A|1952-03-27|1957-05-28|Svenska Flaektfabriken Ab|Trimming and assorting device for sheet-like materials|
    DE1161676B|1960-09-12|1964-01-23|Iamihomaia Holzbearbeitungsmas|Veneer cutting scissors|
    DE1207599B|1965-01-07|1965-12-23|Werner Pankoke Dipl Ing Dr|Veneer package shears|
    US3477327A|1967-04-13|1969-11-11|Tadashi Aizawa|Automatic veneer cutting apparatus|
    US3760667A|1969-01-15|1973-09-25|Black Clawson Co|Veneer defect detector and clipper control|
    US4033212A|1974-09-19|1977-07-05|Meinan Machinery Works, Inc.|Method of and device for severing a veneer sheet|
    US4041820A|1974-11-11|1977-08-16|Plymak Company, Inc.|Veneer clipper|JPS5768894U|1980-10-15|1982-04-24|
    JPS58130725U|1981-10-14|1983-09-03|
    JPS58100143U|1981-12-28|1983-07-07|
    US4516815A|1982-06-07|1985-05-14|Spectrum Control, Inc.|RF filter connector|
    DE3329987C1|1983-08-19|1984-12-13|Jagenberg AG, 4000 Düsseldorf|Device for introducing a web into a treatment machine|
    DE10016209A1|2000-03-31|2001-10-04|Sms Demag Ag|Cross-cutter unit for topping metal strips has movable cutter bar with upper and lower scissor blades mounted between rigid lower and rigid upper cutter bars|
    WO2004018167A1|2002-08-20|2004-03-04|Kern Ag|Transverse separating device|
    FI119871B|2006-02-15|2009-04-30|Raute Oyj|Fanerskärare|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP1627978A|JPS5523731B2|1978-02-14|1978-02-14|
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