liquid adhesive ad level in the adhesive tank 601 when the coating roller 602 is rotating this arrangement effectively eliminates the possibility that the solid pellets pt immediately after being supplied would be fed to the side of the coating roller 602 this is estimated to be because the solid pellets pt immediately after supply tends to float close to the adhesive ad liquid surface fig6 a is the side elevation view in cross section as another embodiment of the coating section 60 fig6 b is a front view of the separating section 607 these drawings use the same reference numerals of fig5 a 5 c for the portions having the same functions as those of fig5 a 5 c only the differences from fig5 a 5 c will be described below the fence section 607 b of the separating section 607 is provided with four elongated circular through holes 607 f long in the horizontal direction the upper portion of the elongated circular hole 607 f is provided with two rectangular through holes 607 h fig7 a 7 c show another embodiment of the separating section 607 fig7 a is a side view of the separating section 607 fig7 b is a front view and fig7 c is a perspective view respectively these drawings uses the same reference numerals of fig5 a 5 c for the portions having the same functions as those of fig5 a 5 c only the differences from fig5 a 5 c will be described below the fence section 607 b is provided with a plurality of elongated circular through holes 607 f the through holes 607 f allow the melted adhesive ad.