SEALANT COATING NOZZLE AND SEALANT COATING DEVICE

摘要

Provided is a sealant coating nozzle, comprising a nozzle cavity (11), a nozzle opening (21) in communication with the nozzle cavity (11), telescopic inner membranes (31, 31a, 31b) located in the nozzle cavity (11) and a driving device which drives the telescopic inner membranes (31, 31a, 31b) to deform in the nozzle cavity (11). When the telescopic inner membranes (31, 31a, 31b) are in a first deformation state, the volume of the nozzle cavity (11) is decreased, so that sealant in the nozzle cavity (11) is squeezed out via the nozzle opening (21). When the telescopic inner membranes (31, 31a, 31b) are in a second deformation state, the volume of the nozzle cavity (11) is increased, so that the sealant at the nozzle opening (21) is sucked into the nozzle cavity (11). Also provided is a sealant coating device comprising the nozzle.