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发明公开
CN106809444A 超声波密封方法及装置 有权

超声波密封方法及装置
摘要：
本发明防止在与被喇叭(31)和砧座(32)夹压的部位邻接的区域A(喇叭31的正下方位置)，因超声波振动能量在喇叭(31)侧的膜(18)产生损伤或开孔。在超声波密封装置的喇叭(31)和砧座(32)的前端设置压力气体的吹出口(47、52)以用作气体吹入用喷嘴。将喇叭(31)和砧座(32)的前端贴靠在切口(19)上，对气囊部(16)内吹入气体以使其膨胀，在持续吹入时利用喇叭(31)和砧座(32)夹压切口(19)周围的膜，接着进行超声波密封以将气体封入气囊部(16)内。在喇叭(31)的正下方位置设置接触部件(71)，将接触部件(71)推抵于膨胀的膜(18)，在该状态下对喇叭(31)供给超声波振动能量。
摘要（英）：

An ultrasonic sealing method and device for a bag, in which pressurized gas spray outlets (47, 52) are provided at distal ends of a horn (31) and an anvil (32) so as to be used as gas blowing nozzles, the distal ends of the horn and the anvil are placed against a cutout (19) formed in a gas compartment (16) of the bag, a gas is blown into the gas compartment to inflate it, and then the horn and the anvil clamp films surrounding the cutout while the gas blowing is in progress, so that ultrasonic sealing is carried out by the horn to the films to trap the gas inside the gas compartment. A contact member (71) is provided directly under the horn. The contact member is pressed against inflated film (18) of the gas compartment, and in this state ultrasonic vibration energy is supplied to the horn.

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