Device for intermittent application of liquids such as adhesive,申请号US19860937859-传众专利搜索

Device for intermittent application of liquids such as adhesive

申请公布号：US4744330(A)

申请号：US19860937859

申请日期：1986.12.04

申请公布日期：1988.05.17

申请人：

CLAASSEN, HENNING J.

发明人：CLAASSEN, HENNING J.

分类号：B05C5/00;B05C5/02;B05C5/04;B05C11/00;B05C11/10;(IPC1-7):B05C5/02

主分类号：B05C5/00

摘要：A device for intermittent application of liquids such as adhesive, in particular hot-melt adhesive, to material moved relatively to the device, comprises a reservoir for the liquid, an application nozzle which is preferably formed as slit nozzle or a plurality of adjacent application passages, a supply line from the reservoir to the nozzle, a needle valve provided shortly upstream from the nozzle, a means for interrupting the flow from the reservoir to the nozzle at desired intervals, a return line to the reservoir connected to the supply line upstream from the main valve and a second needle valve for shutting off the return line. The second needle valve is larger than the main valve and lies as preliminary valve in the supply line a small distance upstream from the main valve; both valves are controllable in adjustable time relationship with respect to each other.