Agitating blade for a main tank of glue preparing equipment

A method of preparing glue in a glue preparing equipment main tank, which method comprises the steps of:

• providing a tank;
• providing a shaft rotatable in the tank about an axis;
• providing an agitator, having multiple blades, fixed to the shaft;
• providing a disc with a plurality of radially projecting teeth on a surface thereof facing and spaced apart from the agitator;
• providing a driving mechanism which rotates the shaft in the tank;
• providing a viscosity sensor which transmits an output to the driving mechanism indicative of viscosity of glue in the tank;
• and
• controlling the viscosity of the glue by driving the driving mechanism to change the speed of the agitator based on the output of the viscosity sensor;
• said glue having a value of at least 250 (-/sec.multidot.m.sup.2) calculated by the equation of ((number of teeth of said disc).times.(tooth length (mm)).times.(number of blades).times.(revolutions (rps)))/(slurry volume (m.sup.3)).

A glue preparing equipment main tank which comprises:

• a tank;
• a shaft rotatable in the tank about an axis;
• an agitator, having multiple blades, fixed to the shaft;
• a disc provided with a plurality of radially projecting teeth on a surface thereof facing and spaced apart from the agitator;
• and
• a driving mechanism which rotates the shaft in the tank;
• wherein the driving mechanism changes the speed of the agitator based on a manual viscosity measurement;
• wherein one or more baffles each having a triangular cross-section are provided on a bottom surface and a side surface of the tank;
• and
• wherein the triangular baffles have a vertical angle of 45.degree. in an upstream direction and at least 75.degree. in a downstream direction.

A method of preparing glue in a glue preparing equipment main tank, which method comprises the steps of:

• providing a tank;
• providing a shaft rotatable in the tank about an axis;
• providing an agitator, having multiple blades, fixed to the shaft;
• providing a disc with a plurality of radially projecting teeth on a surface thereof facing and spaced apart from the agitator;
• providing a driving mechanism which rotates the shaft in the tank;
• providing a viscosity sensor which transmits an output to the driving mechanism indicative of viscosity of glue in the tank;
• and
• controlling the viscosity of the glue by driving the driving mechanism to change the speed of the agitator based on the output of the viscosity sensor;
• which method further comprises the step of preparing glue with a value of at least 250 (-/sec.multidot.m.sup.2) calculated by the equation of ((number of teeth of said disc).times.(tooth length (mm)).times.(number of blades).times.revolutions (rps)))/(slurry volume (m.sup.3)).

A method of preparing glue in a glue preparing equipment main tank, which method comprises the steps of:

• providing a tank;
• providing a shaft rotatable in the tank about an axis;
• providing an agitator, having multiple blades, fixed to the shaft;
• providing a disc provided with a plurality of radially projecting teeth on a surface thereof facing and spaced apart from the agitator;
• providing a driving mechanism which rotates the shaft in the tank;
• manually measuring viscosity of glue in the tank;
• and
• controlling the viscosity of the glue by variably driving the driving mechanism to change the speed of the agitator based on the manual viscosity measurement.