FIELD: paper industry.
SUBSTANCE: invention relates to paper industry and applies to an embossing system wherein glue is used for attaching two or several sheets of paper material for manufacture of paper rolls. The embossing system comprises an embossing unit with at least one embossing roll (G1; G2) configured to emboss the paper sheet (V1; V2) intended for attachment to the additional sheet (V2, V1) by gluing; and a gluing unit connected with the embossing unit with a tank (T) containing the glue for gluing the sheets and with a glue dosing apparatus (GD) containing a pressing roll (CR) configured to distribute by contact the glue from the tank (T) onto one of the sheets (V1, V2) during embossing, wherein the pressing roll (CR) rotates with a predetermined angular velocity around the axis (x) which is parallel to at least one of the embossing rolls (G1; G2). The system additionally includes: a detector (2) suitable for emitting electrical signal with amplitude and/or frequency of the vibrations whereon the pressing roll (CR) reacts on instantly while rotating around the axis (x); controlling unit (1) which during system operation receives instant data about the amplitude and/or frequency of the signal emitted by the detector (2) and compares it to the reference database (DB) wherein the reference data was obtained by testing of the embossing unit and the gluing unit under conditions of respectively correct and incorrect distribution of glue on the pressing roll (CR) and it consists of a first amplitude and/or frequency dataset for normal vibrations and respectively a second amplitude and/or frequency dataset for abnormal vibrations, wherein the controlling unit (1) is programmed to send out an alarm if at least the instant data of amplitude and/or frequency generated by the detector (2) corresponds with at least the data of amplitude and/or frequency of the second set.
EFFECT: invention enables an embossing/gluing system equipped with especially fast and efficient controlling mechanism preventing system overheating.
7 cl, 5 dwg
