Narrow slit type coating apparatus with improved support mechanism

Abstract

The invention relates to a slit coating device with an improved support mechanism, and the slit coating device comprises a mold and the support mechanism. The support mechanism comprises a beam which is parallelly and correspondingly arranged below the mold; support parts which are arranged along the length direction of a beam at intervals and vertical to a support; a coupling mechanism of the support parts, the support parts are coupled to be able to be vertically ascended, descended and adjusted and moved along the length direction of the beam along with the thermal expansion and contraction along the length direction of the mold; a connecting plate component which comprises inner and outer connecting plates which are movably pin jointed through a pivot shaft and can be relatively swung in a plane which is parallel with the end surface at the length direction of the beam; a swing manipulation mechanism which is arranged to be able to drive the inner connecting plate to swing relative to the outer connecting plate; a fixed side plate which is fixed on a machine rack and is coupled with the outer connecting plate through a straight line sliding unit which is transversely horizontally arranged; and a pneumatic cylinder which is arranged to be capable of driving the outer connecting plate to horizontally move relative to the fixed side plate along the transverse direction. The slit coating device can simply flexibly carry out the adjustment of the position and the tilt angle of the mold and effectively eliminate the thermal stress caused by the thermal expansion and contraction of the mold.

Description

technical field [0001] The invention relates to a slit-type coating device for applying liquid to a coil or carrier, which has an improved supporting mechanism, can easily and flexibly adjust the position and inclination of the coating mold according to the needs of the coating operation, and can Effectively eliminate the thermal stress caused by the expansion and contraction of the coating mold. Background technique [0002] Slot coaters are used to apply liquids to continuously conveyed webs or supports. At present, the slit coating equipment has been successfully applied in many industrial manufacturing fields. It is not only suitable for applying low-viscosity liquids with good fluidity at room temperature, but also for products such as sanitary napkins, diapers, and medical dressing tapes. The manufacturing process applies a hot melt adhesive liquid to the web or carrier. [0003] Slot coating equipment usually has a frame, a coating device for applying a liquid, a ro...

AI Technical Summary

Problems solved by technology

If the coating mold is fixed by traditional methods such as bolt locking, since the relative thermal displacement between the coating mold and the supporting mechanism cannot be compensated, a large thermal stress will be generated at the connection part, which will easily cause damage and use of the parts shortened lifespan

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