Book-binding apparatus using adhesive agent

A book-binding apparatus in which adhesive agent is used for binding a book, comprising:

• an adhesive agent tank to store an adhesive agent which is heat-melted;
• a heating section to heat the adhesive agent in the adhesive agent tank;
• a coating section to coat the melted adhesive agent on a spine of the book;
• a first temperature sensor mounted in the adhesive agent tank to detect a temperature of the melted adhesive agent;
• a first control section to control the heating section based on a temperature detection signal which has been detected by the first temperature sensor, wherein the first control section controls the heating section so as to make the temperature of the melted adhesive agent in the adhesive agent tank become a predetermined temperature;
• a second temperature sensor mounted at a position adjacent to a top level of the melted adhesive agent;
• an adhesive agent transporting section to transport a solid adhesive agent into the adhesive agent tank;
• a thickness detecting section to detect a thickness of the book to be bound;
• a memory section to store a table to show relationship between the thickness of the book and the amount of the solid adhesive agent to be transported into the adhesive agent tank;
• a determining section to determine the amount of the solid adhesive agent to be transported to the adhesive agent tank based on both information of the thickness of the book detected by the thickness detecting section and information of the table stored in the memory section;
• and
• a second control section to control the adhesive agent transporting section so as to transport the solid adhesive agent to the adhesive agent tank, the amount of the solid adhesive agent being determined by the determining section, when the temperature of the melted adhesive agent detected by the second temperature sensor is equal to or lower than a set temperature.