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    MACHINE FOR SEALING VACUUM PACKS AND A CONTROL METHOD THEREFOR
    42.
    发明申请
    MACHINE FOR SEALING VACUUM PACKS AND A CONTROL METHOD THEREFOR 审中-公开
    密封真空包装机及其控制方法

    公开(公告)号：US20110289885A1

    公开(公告)日：2011-12-01

    申请号：US13114130

    申请日：2011-05-24

    申请人： Giorgio Re ,  Pier Diano Catellani

    发明人： Giorgio Re ,  Pier Diano Catellani

    IPC分类号： B65B31/04

    CPC分类号： B29C65/30 ,  B29C65/224 ,  B29C66/00145 ,  B29C66/1122 ,  B29C66/43121 ,  B29C66/81871 ,  B29C66/8221 ,  B29C66/8324 ,  B29C66/849 ,  B29C66/91313 ,  B29C66/91631 ,  B29C66/91651 ,  B29C66/961 ,  B65B31/04 ,  B65B51/146 ,  B65B57/00 ,  B65B65/00 ,  H01F27/40 ,  H02K11/0094

    摘要： A machine for sealing vacuum packs, include a pump for aspirating air from inside a pack; an electric motor, the electric motor is powered by an electricity grid supply; at least a welding element that is placed in contact with the pack, for welding and sealing the pack; a supply circuit configured to connect the welding element to the electricity grid supply; a control unit that controls the supply circuit to supply energy to the welding element; and a measuring device for measuring a value of a parameter indicating the electrical energy supplied to the welding element. The measuring device is connected to the control unit, which is configured to determine the value of electrical energy supplied to the welding element from the start of the welding, and interrupts supply of the electrical energy to the welding element on reaching a predetermined value of the electrical energy.

    摘要翻译： 用于密封真空包装的机器包括用于从包装内吸出空气的泵; 电动马达，电动马达由电网供电; 至少一个焊接元件，其被放置成与所述包装物接触，用于焊接和密封所述包装; 电源电路，被配置为将焊接元件连接到电网电源; 控制单元，其控制所述供给回路向所述焊接元件供给能量; 以及用于测量表示提供给焊接元件的电能的参数的值的测量装置。 测量装置连接到控制单元，其被配置为从焊接开始确定供应给焊接元件的电能的值，并且在达到预定值的情况下中断向焊接元件的电能供应 电能。

    Apparatus for controlling RF generators to weld plastic materials
    46.
    发明授权
    Apparatus for controlling RF generators to weld plastic materials 失效
    用于控制RF发生器以焊接塑料材料的装置

    公开(公告)号：US5750971A

    公开(公告)日：1998-05-12

    申请号：US687252

    申请日：1996-07-25

    申请人： Junius E. Taylor

    发明人： Junius E. Taylor

    IPC分类号： B29C65/00 ,  B29C65/04 ,  H05B6/50 ,  H05B6/54 ,  B32B19/02 ,  H05B9/04

    CPC分类号： H05B6/50 ,  B29C65/04 ,  B29C66/1122 ,  B29C66/4312 ,  B29C66/8322 ,  B29C66/857 ,  B29C66/8614 ,  B29C66/8618 ,  B29C66/91313 ,  B29C66/91643 ,  B29C66/91653 ,  B29C66/961 ,  B29C66/974 ,  B29C66/944 ,  B29C66/949 ,  B29C66/9592 ,  B29L2023/005 ,  B29L2031/753

    摘要： Radio frequency power for melting, sealing and welding plastic tubing compressed between a pair of manually or automatically actuated electrically conducting jaws of a hand held or fixed base tubing sealer is regulated by a pulse width modulator controlling the duty cycle of applied constant voltage pulses. A predetermined change of impedance of the tubing during compression and melting is detected to regulate the power applied and to ensure a weld of predetermined physical parameters. On completion of the weld, a first timer is reset and a further weld may be made. In the event of impedance mismatch, a second timer inhibits further application of power and resetting of the first timer. The use of the pulse width modulator enhances conservation of power and accommodates portability of the tubing sealer through use of rechargeable batteries as the power source.

    摘要翻译： 用于熔化，密封和焊接的塑料管的射频功率由手持或固定的基管封口器的一对手动或自动致动的导电钳口压缩，由控制施加的恒定电压脉冲的占空比的脉冲宽度调制器调节。 检测压缩和熔化期间管道阻抗的预定变化，以调节施加的功率并确保预定物理参数的焊接。 在焊接完成时，第一定时器被复位，并且可以进一步焊接。 在阻抗不匹配的情况下，第二计时器禁止进一步施加电力并重置第一定时器。 脉冲宽度调制器的使用通过使用可再充电电池作为电源来增强功率的保护并适应管道密封器的便携性。

    Method of welding thermoplastic material
    47.
    发明授权
    Method of welding thermoplastic material 失效
    热塑性材料焊接方法

    公开(公告)号：US5451286A

    公开(公告)日：1995-09-19

    申请号：US107737

    申请日：1993-08-25

    申请人： Henrik Nyborg

    发明人： Henrik Nyborg

    IPC分类号： B29C65/00 ,  B29C65/02 ,  B29C65/22 ,  B29C65/38 ,  B32B31/00

    CPC分类号： B29C65/38 ,  B29C65/02 ,  B29C65/224 ,  B29C65/228 ,  B29C65/229 ,  B29C65/743 ,  B29C66/0044 ,  B29C66/24221 ,  B29C66/24244 ,  B29C66/474 ,  B29C66/47421 ,  B29C66/53461 ,  B29C66/80 ,  B29C66/8122 ,  B29C66/81423 ,  B29C66/81871 ,  B29C66/8322 ,  B29C66/91313 ,  B29C66/91315 ,  B29C66/91421 ,  B29C66/91431 ,  B29C66/91641 ,  B29C66/91651 ,  B29C66/91655 ,  B29C66/919 ,  B29C66/91921 ,  B29C66/91933 ,  B29C66/949 ,  B29C66/961 ,  B29C66/71 ,  B29C66/91423 ,  B29L2031/7148

    摘要： By the welding of plastic material, the plastic material is placed between a welding electrode of a profile and pattern mating the welding to be performed, and a counter electrode comprising one or several pulse heating wires. Together the pulse heating wires cover the pattern of the welding electrode and project preferably a short distance beyond the welding electrode. The pulse heating wires are furthermore mutually and outwardly electrically insulated. A separating tape of a higher melting point than the plastic material has been inserted between the pulse heating wires and the plastic material. The welding press comprises a welding plane with the welding electrode and a fixing plane for the counter electrode. The temperature of the welding electrode can be kept constant and within a temperature range of approximately 20.degree. C. to approximately 250.degree. C. The fixing plane is non-heated. The pulse heating wires are secured to the fixing plane and are mutually and outwardly electrically insulated. Each pulse heating wire communicates with a current source and an electronic regulator capable of setting and regulating the temperature and heating period of each pulse heating wire very accurately.

    摘要翻译： PCT No.PCT / DK92 / 00056 Sec。 371日期：1993年8月25日 102（e）日期1993年8月25日PCT提交1992年2月25日PCT公布。 公开号WO92 / 14602 日期：1992年9月3日。通过塑料材料的焊接，将塑料材料放置在型材的焊接电极和匹配要执行的焊接的图案之间，以及包括一个或多个脉冲加热丝的对电极。 脉冲加热丝一起覆盖焊接电极的图案，优选地突出超过焊接电极的距离。 脉冲加热线进一步相互和向外电绝缘。 具有比塑料材料更高熔点的分离带已经插入在脉冲加热丝和塑料材料之间。 焊机包括具有焊接电极的焊接平面和用于对电极的固定平面。 焊接电极的温度可以保持恒定，并且在约20℃至约250℃的温度范围内。固定平面不加热。 脉冲加热线被固定到固定平面上并相互和向外电绝缘。 每个脉冲加热线与电流源和能够非常准确地设定和调节每个脉冲加热丝的温度和加热周期的电子调节器相连通。

    Speed control for roof welding apparatus
    48.
    发明授权
    Speed control for roof welding apparatus 失效
    屋顶焊接设备的速度控制

    公开(公告)号：US5072097A

    公开(公告)日：1991-12-10

    申请号：US319542

    申请日：1989-03-06

    申请人： Alfred F. Miller

    发明人： Alfred F. Miller

    IPC分类号： B29C65/00 ,  B29C65/20 ,  G05D23/20

    CPC分类号： B29C65/20 ,  B29C66/0242 ,  B29C66/8362 ,  B29C66/9121 ,  B29C66/91213 ,  B29C66/91231 ,  B29C66/91313 ,  B29C66/9141 ,  B29C66/91421 ,  B29C66/91431 ,  B29C66/91641 ,  B29C66/91645 ,  B29C66/93441 ,  B29C66/961 ,  E04D15/04 ,  G05D23/1931 ,  G05D23/20 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/919 ,  B29C66/91921 ,  B29C66/962 ,  B29K2095/00

    摘要： A temperature sensitive motor control for use in roofing membrane welding devices is described. The control circuit gives an output impedance responsive to variations in the temperature of the welding device and ambient temperature. A thermocouple provides a voltage signal responsive to changes in the temperature of the heating plate of the welding device. An ambient temperature sensitive circuit element acts in conjunction with the input signal to provide an output signal that is responsive to both ambient temperature and heating plate temperature. The output signal is applied to a voltage variable impedance element which outputs an impedance that is a function of both application temperature and ambient temperature. In one preferred embodiment of the present invention, the ambient temperature sensitive circuit element is a thermistor. In an alternate preferred embodiment of the present invention, the ambient temperature sensitive circuit element is a diode-comparator circuit.

    摘要翻译： 描述了用于屋顶膜焊接装置的温度敏感电动机控制。 控制电路给出响应于焊接装置的温度变化和环境温度的输出阻抗。 热电偶响应于焊接装置的加热板的温度变化而提供电压信号。 环境温度敏感电路元件与输入信号一起作用，以提供响应于环境温度和加热板温度的输出信号。 输出信号被施加到电压可变阻抗元件，其输出作为施加温度和环境温度的函数的阻抗。 在本发明的一个优选实施例中，环境温度敏感电路元件是热敏电阻。 在本发明的替代优选实施例中，环境温度敏感电路元件是二极管比较器电路。