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    • 23. 发明公开
    • Sheet cutting station for rotary cut wood veneer
    • BogenschneidmaschinefürgeschältesHolzfurnier。
    • EP0500161A2
    • 1992-08-26
    • EP92200356.1
    • 1992-02-10
    • ANGELO CREMONA & FIGLIO S.p.A.
    • Cremona, Lorenzo
    • B27L5/08B27G1/00
    • B26D11/00B26D1/405B27G1/00B27L5/08
    • Method for cutting sheets from a strip of wood veneer (12) comprising the phases of detecting the presence of a plurality of specific zones of the strip and cutting the strip transversely on command or, in combination, longitudinally and transversely, to circumscribe specific zones of said plurality in strips as wide as the entire strip or a fraction thereof.
      In accordance with this method a station (10) for cutting in sheets a strip of wood veneer (12) comprises transverse cutting means (15) for the strip controlled by control means to obtain sheets of a length falling within preset ranges and sensor means (13) for detection of a plurality of specific zones of the strip upstream and downstream of which is performed a transverse cut. The cutting means (15) comprise blade units for performing a complete transverse cut of the strip or cuts of half strips obtained by longitudinal cutting means (20) to obtain sheets (41), (42) sent to stacking (18).
    • 一种用于从木皮单板(12)切割片材的方法,包括检测条带的多个特定区域的存在的相位,并且根据命令横向地切割条带,或者组合地纵向和横向地划定条带的特定区域 所述多个条带与整个条带一样宽,或其一部分。 根据该方法,用于在板材上切割一片木材胶合板(12)的工位(10)包括用于由控制装置控制的带材的横向切割装置(15),以获得落入预设范围内的长度的片材和传感器装置 13)用于检测条带的上游和下游的多个特定区域的横向切割。 切割装置(15)包括刀片单元,用于执行由纵向切割装置(20)获得的条带或半条切割物的完全横向切割,以获得发送到堆叠(18)的片材(41),(42)。
    • 27. 发明公开
    • METHOD AND DEVICE FOR CURVILINEAR FORMATION OF A WODDEN CORRUGATED VENEER
    • EP4260997A1
    • 2023-10-18
    • EP22205944.6
    • 2022-11-07
    • Uniwersytet Przyrodniczy w Poznaniu
    • SMARDZEWSKI, JerzyKRZYZANIAK, LukaszPELINSKI, Krzysztof
    • B27D1/06B27L5/02B27L5/08F16B15/00B27M1/02
    • A method for curvilinear formation of the wooden corrugated veneer, in which sliced, rotary cut, eccentrically cut or cut by other similar methods veneer, obtained from wood subjected to hydrothermal treatment at a temperature of 40°C to 80°C depending on the species of wood and absolute humidity above the point of saturation of wood fibers, i.e. above 30%, is formed between two moulds applied on the fluted surfaces of the upper and lower rollers by means of moulds 7 and 8 and is subjected to drying under the climatic conditions of the production room, for which the air temperature is from 20°C to 30°C and the relative humidity is from 35% to 60%, forcing air movement only mechanically. Preferably, the veneer can be dried with the use of blow of dry air at a temperature of 100°C - 150°C and relative humidity of 10%-40% forced into the working space through the air vents in upper cover 11 and lower cover 10, and the process of shape fixation is carried out for several to a dozen or so minutes until the veneer reaches an absolute humidity of approximately 4%, moving the veneer horizontally on the conveyor during this time at a speed of 1 m/min to 10 m/min, depending on the length of the process line and dry air parameters, adjusting the travel speed of drive 9, after which the fixation and relaxation of the stresses in the veneer is carried out between the moulds once they have been unfolded on a flat surface.
      The device for curvilinear formation of the wooden corrugated veneer contains fluted rollers 1,2 driven by known drive 9 and placed in a rigid frame 3, and moulds 7, 8 are inserted between rollers 1 and 2, the rollers have an outer diameter most preferably from 10L to 14L, where L corresponds to the length of the pitch (base) of the elementary segment of mould 7, 8. The height of the fluting (tooth) of the mould should preferably be equal from ¼ H to 1/2H of the height of the elementary segment of mould 7, 8, wherein the shape of the fluting should correspond to the shape of mould 7, 8 resulting from proportions of L to H as well as thickness T of the veneer constituting the material for producing the corrugated web, and each mould, lower 7 and upper 8, consists of individual elements articulated together by means of rod rollers 5,6, the concave surfaces of the elements of each mould adhere to contact with the fluted surface of the rollers with the lowest possible coefficient of friction, which cannot exceed 0.1, and rod rollers 5 and 6 during operation enter the recesses of fluted rollers 1 and 2 with the same effect.