Ultrasonic device for a polymer injector apparatus

    公开(公告)号:US11820059B2

    公开(公告)日:2023-11-21

    申请号:US17264028

    申请日:2019-07-12

    申请人: Fundacio Eurecat

    IPC分类号: B29C45/56

    CPC分类号: B29C45/568 B29C2791/008

    摘要: An ultrasonic device comprising a fusion chamber (10) with an inlet bore (11) for a polymer in pellet, powder or tablet form, a plunger that modifies the volume of the fusion chamber, an outlet bore (12) that communicates with a mould (60), a sonotrode bore (13) through which a distal portion (21) of an ultrasonic head (20) is inserted into the fusion chamber, wherein the distal portion is separated from the rest of the ultrasonic head by a first nodal plane (PN1) in correspondence of a first surface (S1) in contact with a complementary surface of a ring seal (30) that closes the fusion chamber, the ultrasonic head including a second nodal plane (PN2) away from and parallel to the first nodal plane in correspondence of or adjacent to a second surface (S2) wherein an anchoring device (40) presses the ultrasonic head against the ring seal ensuring a tight closure.

    ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS
    2.
    发明申请
    ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS 有权
    超声波辅助成型精密制品及方法

    公开(公告)号:US20130345384A1

    公开(公告)日:2013-12-26

    申请号:US14003045

    申请日:2012-03-14

    IPC分类号: B29C45/73 C08F220/06

    摘要: An ultrasonic-assisted injection molding system and method for making precisely-shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116° C., and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122° C., thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107° C., and is thereafter heated until the temperature increases to 116-122° C., thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element.

    摘要翻译: 超声波辅助注射成型系统及制造精密成形制品的方法。 定位超声波能源,以将振动能施加到与熔融(共)聚合物源流动连通的至少一个浇口连接的模腔上。 将模具加热到104-116℃的温度,并将熔融的(共)聚合物注入模腔中。 在模具冷却之后,门内的熔融(共)聚合物已经固化,超声波能量被施加到模具上,而不使固化的(共)聚合物在浇口内重熔,直到温度升至116-122℃,从而基本上缓解 流动应力。 然后将模具冷却直到温度降至101-107℃,然后加热直到温度升至116-122℃,从而基本上减轻任何热诱导的应力。 将模具冷却直到熔融(共)聚合物固化,从而形成精密模塑塑料光学元件。

    Method for equalizing the orientation of fillers and/or distribution of fillers in injection moulded parts
    6.
    发明授权
    Method for equalizing the orientation of fillers and/or distribution of fillers in injection moulded parts 有权
    用于均衡注塑部件中填料的取向和/或填料分布的方法

    公开(公告)号:US07883659B2

    公开(公告)日:2011-02-08

    申请号:US11445419

    申请日:2006-06-01

    摘要: The present invention relates to a method for equalizing the orientation of fillers and/or distribution of fillers in a molding compound comprising filled plastic material of an injection molded part. A method of this type is required in particular during injection molding.The method according to the invention is characterized in that the injection mold and the molding compound are supplied with sound during injection molding in the injection mold. The sound has a frequency in the range of the spectrum of the first ten natural frequencies of the filler-matrix system. By supplying with this sound, the fillers, for example fibers, are distributed within the injection molding compound in a more isotropic manner with respect to their orientation and distribution so that significantly better mechanical and optical properties of the injection molded part are produced.

    摘要翻译: 本发明涉及一种均匀化填料的取向和/或填料的分散方法,该方法包括注塑部件的填充塑料材料。 特别是在注射成型时需要这种类型的方法。 根据本发明的方法的特征在于,在注射模具中注射成型期间,注塑模具和模塑料具有声音。 声音在填充矩阵系统的前十个固有频率的频谱范围内具有频率。 通过提供这种声音,填充剂例如纤维以相对于其取向和分布的更均匀的方式分布在注射模塑料内,从而产生注塑部件的显着更好的机械和光学性能。

    METHOD FOR FORMING DYNAMIC PRESSURE GENERATING GROOVES
    7.
    发明申请
    METHOD FOR FORMING DYNAMIC PRESSURE GENERATING GROOVES 审中-公开
    形成动态压力生成井的方法

    公开(公告)号:US20090230593A1

    公开(公告)日:2009-09-17

    申请号:US12065828

    申请日:2006-08-24

    IPC分类号: B29C45/17

    摘要: High-precision, low-cost molding of dynamic pressure generating grooves is made possible.An ultrasonic generating device 20 is connected to an injection mold 10. The dynamic pressure generating grooves are molded by means of radial dynamic pressure generating groove forming parts 16 and a thrust dynamic pressure generating groove forming part 17 provided in the injection mold 10, with ultrasonic vibration generated by the ultrasonic generating device 20 being applied to the injection mold 10 during the injection molding.

    摘要翻译: 动压产生槽的高精度,低成本成型成为可能。 超声波发生装置20连接到注射模具10上。动压产生槽通过径向动压产生槽形成部分16和设置在注模10中的推力动压产生槽形成部分17模制,其中超声波 在注射成型期间由超声波发生装置20产生的振动施加到注射模具10。

    APPARATUS FOR ALTERING THE PHYSICAL PROPERTIES OF FLUIDS
    10.
    发明申请
    APPARATUS FOR ALTERING THE PHYSICAL PROPERTIES OF FLUIDS 失效
    改变流体物理性质的装置

    公开(公告)号:US20020060379A1

    公开(公告)日:2002-05-23

    申请号:US09294220

    申请日:1999-04-16

    IPC分类号: B06B001/02 B29C045/76

    摘要: A system for fluid processing is provided to control shear, point velocity and pressure in either a Newtonian or non-Newtonian fluid which includes creation of three fields, namely a dynamic microshear field, a dynamic velocity field and a dynamic pressure field, with the fields being created by the injection of energy between 1 KHz and 10 MHz into the fluid. Control is achieved by control of the angle at which mechanical energy is delivered, steering and/or focusing of the energy, control of the amplitude of the energy waveform, of the energy, and control of the frequency of the energy in one embodiment to eliminate standing waves. By controlling the three fields, the system is able to control overall fluid behavior. In one embodiment, energy is injected into a fluid at any angle to the direction of flow assuming the fluid is flowing, with the injected energy providing a predetermined controllable zone of energy in the fluid at the region of energy injection. In another embodiment, the container itself is a transducer that acts as a processor, where the energy comes from the container itself. In a further embodiment, a phased array is used for electronically steering and focusing energy to any point within the fluid volume to provide for the desired shear, velocity and pressure distributions. Note that the direction and focusing of the injection of energy is turnable by physically moving a transducer or by the use of a phased array.

    摘要翻译: 提供用于流体处理的系统以控制牛顿或非牛顿流体中的剪切,点速度和压力,包括创建三个场,即动态微锯齿场,动态速度场和动态压力场,其中场 通过在1KHz和10MHz之间的能量注入到流体中而产生。 控制是通过控制机械能量传递的角度,能量的转向和/或聚焦,能量波形的幅度的控制以及能量的频率的控制来实现的,以消除 驻波。 通过控制三个场,系统能够控制整体流体行为。 在一个实施例中,假定流体流动,能量以与流动方向成任意角度注入流体中,注入的能量在能量注入区域中在流体中提供预定的可控的能量区。 在另一个实施例中,容器本身是用作处理器的换能器,其中能量来自容器本身。 在另一个实施例中,相控阵列用于电子转向和将能量聚焦到流体体积内的任何点以提供期望的剪切,速度和压力分布。 注意,通过物理移动换能器或通过使用相控阵列,可以转换能量注入的方向和聚焦。