Stepped punch for forming holes in molded wood strand parts
    11.
    发明授权
    Stepped punch for forming holes in molded wood strand parts 失效
    用于在模制木线部分中形成孔的阶梯冲头

    公开(公告)号:US06843946B1

    公开(公告)日:2005-01-18

    申请号:US10333280

    申请日:2000-07-31

    申请人: Bruce A. Haataja

    发明人: Bruce A. Haataja

    IPC分类号: B29C43/36 C08J5/04

    摘要: A mold for forming wood flakes into a molded wood flake part including a top mold die and a bottom mold die. The top mold die includes a punch for forming a hole in the part, and the bottom mold die includes a punch receiving aperture. The punch includes a tapered upper portion and a cylindrical lower portion for forming the hole in molded parts of varying thicknesses. The punch includes a tapered upper section defining an upper opening of a first radius in a top surface of the molded part and a cylindrical lower section defining an opening of a second radius in a bottom surface of the molded part. The cylindrical lower portion is sufficiently long that the bottom opening in the hole in each part formed will have the same second radius.

    摘要翻译: 一种用于将木片形成为包括顶模模和底模模的模制木片部分的模具。 上模具包括用于在该部件中形成孔的冲头,并且底模具包括冲头接收孔。 冲头包括锥形上部和用于在不同厚度的模制部件中形成孔的圆柱形下部。 冲头包括限定模制部件的顶表面中的第一半径的上开口的锥形上部分和限定模制部件的底表面中的第二半径的开口的圆柱形下部。 圆筒形下部足够长,使得形成的每个部分中的孔中的底部开口将具有相同的第二半径。

    Method for compression molding articles from lignocellulosic materials
    12.
    发明授权
    Method for compression molding articles from lignocellulosic materials 失效
    从木质纤维素材料压缩成型制品的方法

    公开(公告)号:US5002713A

    公开(公告)日:1991-03-26

    申请号:US455987

    申请日:1989-12-22

    IPC分类号: C08L97/02

    摘要: Flakeboard or particle board panels and other composite articles made from wood flakes or other particulate lignocellulosic materials having a relatively high internal bond and improved resistance to moisture are made from flakes or particles which have a moisture content of at least 15%. A catalyst capable of accelerating the reaction between the flakes or particles, the binder and water is applied to the flakes or particles prior to the addition of a moisture-tolerant particle board binder, such as an organic polyisocyanate. A mat of the resulting furnish is compression shaped under pressure and at a temperature less than 250.degree. F. for a time period sufficient to form a composite article of the desired shape and/or dimensions.

    摘要翻译: 由具有相对高的内部粘结和改善的耐湿性的木片或其他颗粒状木质纤维素材料制成的刨花板或刨花板面板以及其它复合制品由具有至少15%的水分含量的薄片或颗粒制成。 在加入耐湿颗粒板粘合剂如有机多异氰酸酯之前,能够将薄片或颗粒,粘合剂和水之间的反应加速的催化剂施加到薄片或颗粒上。 所得配料的垫在压力下和在低于250°F的温度下压缩成型一段足以形成所需形状和/或尺寸的复合制品的时间段。

    Molded wood particle pallet having increased bending strength
    13.
    发明授权
    Molded wood particle pallet having increased bending strength 失效
    具有增加弯曲强度的模制木颗粒托盘

    公开(公告)号:US4408544A

    公开(公告)日:1983-10-11

    申请号:US292280

    申请日:1981-08-12

    申请人: Bruce A. Haataja

    发明人: Bruce A. Haataja

    IPC分类号: B65D19/00 B65D19/24

    摘要: The invention includes a molded unitarily formed pallet comprising wood particles bonded together by a cured binder in compressed relation and forming a deck having an upper surface supporting a load, and a plurality of elongated substantially parallel spaced channels supporting the deck. The channels extend from adjacent one edge of the pallet to adjacent an opposite edge. The channels each including spaced channel side walls extending downwardly from said deck and terminating in a planar bottom wall parallel to the deck. The side walls are integrally joined at their upper edges to the deck and integrally joined at their lower edges to the bottom wall. The deck and elongated channels are formed by laying a loosely felted mat of wood particles in a press, the mat including wood flakes mixed with a binder and the wood flakes being thin and generally planar and being laid in felted relation so as to lie in substantially horizontal planes in interleaved relation, and by compressing the mat.

    摘要翻译: 本发明包括一个模制的整体形成的托盘,其包括通过压缩关系的固化的粘合剂粘合在一起的木材颗粒,并形成一个具有支撑载荷的上表面的甲板以及支撑甲板的多个细长的基本上平行的间隔开的通道。 通道从托盘的相邻一个边缘延伸到相邻的边缘。 每个通道包括间隔开的通道侧壁,其从所述甲板向下延伸并且终止于与甲板平行的平面底壁。 侧壁在其上边缘处一体地连接到甲板上,并且在其下边缘处一体地连接到底壁。 甲板和细长通道是通过在压机中铺设松散毡状的木质颗粒而形成的,该垫包括与粘合剂混合的木屑,木片薄且基本上是平面的,并且被铺设成毡状关系,以便基本上 水平面交错关系,并通过压缩垫。

    Articles molded from papermill sludge
    15.
    发明授权
    Articles molded from papermill sludge 失效
    由造纸泥浆成型的制品

    公开(公告)号:US4221751A

    公开(公告)日:1980-09-09

    申请号:US18121

    申请日:1979-03-07

    IPC分类号: B27N5/00 B65D19/00 B29J5/00

    摘要: An article, such as a pallet having a substantially flat deck member and a plurality of hollow legs projecting from the deck member, is molded as a one-piece unit from a papermill sludge. Dried, comminuted papermill sludge is blended with a fibrous reinforcing material, preferably a cellulosic material such as fibrous bark particles, and a resinous particle board binder, the resulting mixture of furnish is formed into a loosely fitted mat, and the mat is placed between dyes of a mold and press and compressed to substantially the desired shape under temperature and pressure conditions sufficient to bond the sludge and bark particles together.

    摘要翻译: 诸如具有基本平坦的甲板构件的托盘和从甲板构件伸出的多个中空腿的物品由造纸泥浆模制成一体式单元。 将干粉碎的造纸泥浆与纤维增强材料,优选纤维素材料如纤维树皮颗粒和树脂颗粒板粘合剂混合,将所得的配料混合物形成为松散配合的垫,并将垫放置在染料 的模具并压制并在足以将污泥和树皮颗粒粘合在一起的温度和压力条件下压缩至基本上所需的形状。

    Spring-loaded ejectors for wood strand molding
    17.
    发明授权
    Spring-loaded ejectors for wood strand molding 失效
    用于木线成型的弹簧式弹射器

    公开(公告)号:US06761844B1

    公开(公告)日:2004-07-13

    申请号:US10048332

    申请日:2002-01-25

    申请人: Bruce A. Haataja

    发明人: Bruce A. Haataja

    IPC分类号: B29C4350

    摘要: Mold apparatus and method of production and ejection of molded wood strand three-dimensionally curved articles of manufacture, molded from a loosely felted flake mat, using an ejector pin assembly within said mold apparatus having ejector pins with pin head diameters of at least about 0.750 inches or greater, that exert a loaded ejector pin pressure of from approximately about 100 psi to about 1000 psi, to eject the molded wood strand article from the mold apparatus without causing excessive indentation and densification within the mat during mold processing.

    摘要翻译: 使用在所述模具装置内使用推顶销组件的由松散毡制的薄片垫模制的模制木线条三维弯曲制品的模制装置和方法,其具有销头直径至少约0.750英寸 或更大,其施加约100psi至约1000psi的加载的顶针压力,以将模制的木线条制品从模具设备中排出,而不会在模具加工期间在垫内产生过度的压痕和致密化。

    Pallets molded from matted wood flakes
    19.
    发明授权
    Pallets molded from matted wood flakes 失效
    由哑光木片成型的托盘

    公开(公告)号:US4337710A

    公开(公告)日:1982-07-06

    申请号:US165393

    申请日:1980-07-02

    IPC分类号: B27N5/00 B65D19/00 B65D19/24

    摘要: An article having non-planar portions, such as a pallet having a substantially flat deck member and a plurality of hollow leg members projecting integrally from the deck member, is molded as a one-piece unit from a loosely-felted, layered mat formed from a mixture of a resinous particle board binder and flake-like wood particles. The wood flakes have an average length of about 11/4 to about 6 inches, preferably about 2 to about 3 inches, an average thickness of about 0.005 to about 0.075 inch, preferably about 0.015 to about 0.025 inch, and an average width of 3 inches or less and no greater than the average length. Each layer of wood flakes in the mat lie substantially flat on a plane generally parallel to the major plane thereof and are randomly oriented to each other. The mat is placed between the male and female dies of a mold or press and compressed therein to substantially the desired shape under temperature and pressure conditions sufficient to bond the flakes together.

    摘要翻译: 具有非平面部分的物品,例如具有基本平坦的甲板构件的托盘和从甲板构件一体地突出的多个中空腿部构件,由一块松散的层状垫片模制成一体式单元, 树脂颗粒板粘合剂和片状木颗粒的混合物。 木片的平均长度为约11/4至约6英寸,优选约2至约3英寸,平均厚度为约0.005至约0.075英寸,优选约0.015至约0.025英寸,平均宽度为3 英寸或更小并且不大于平均长度。 垫子中的每层木片在基本上平行于其主平面的平面上基本平坦地放置,并且彼此随机取向。 将垫子放置在模具或压机的阳模和阴模之间并在其中压缩到基本上所需的形状,在足以将薄片粘合在一起的温度和压力条件下。

    Method for molding apertures in molded wood products
    20.
    发明授权
    Method for molding apertures in molded wood products 失效
    用于模制木制品中的孔的方法

    公开(公告)号:US4248820A

    公开(公告)日:1981-02-03

    申请号:US972032

    申请日:1978-12-21

    申请人: Bruce A. Haataja

    发明人: Bruce A. Haataja

    IPC分类号: B27N5/00 B29J5/06

    CPC分类号: B27N5/00

    摘要: A method is provided for forming a wood product comprised of wood flakes and binder intermixed therein, and including a hole or aperture molded into the product, the aperture including a densified, high strength periphery. The method includes the steps of providing a female die plate having a forming surface and a bore extending through the die plate, the bore converging in the direction away from the forming surface. A male die plate is also provided in opposed relation to the female die plate, the male die plate having a forming surface and a tapered forming member aligned with the bore in the female die plate. A mat comprised of wood flakes and intermixed binder is placed between the die plates, and the die plates are forced together to compress the mat between the forming surfaces, thereby forming a rigid composite body. The die plates also form a tapered aperture in the composite body, the tapered forming member and the complementary converging bore in the female die plate causing localized increased density of the periphery of the formed aperture.

    摘要翻译: 提供了一种用于形成由木片和粘合剂混合在其中的粘合剂组成的木制品的方法,并且包括模制在产品中的孔或孔,该孔包括致密化的高强度外围。 该方法包括以下步骤:提供具有成形表面的阴模板和延伸穿过模板的孔,该孔在远离成形表面的方向上会聚。 阳模板也设置成与阴模板相对,阳模板具有成形表面和与阴模板中的孔对准的锥形成形构件。 将由木片和混合粘合剂组成的垫放置在模板之间,并将模板压在一起以压缩成形表面之间的垫,从而形成刚性复合体。 模板也在复合体中形成锥形孔,锥形形成构件和阴模板中的互补会聚孔引起形成的孔的周边的局部增加的密度。