Method for supplying resin, method for manufacturing resin molded product, and resin molding apparatus

A resin molding apparatus comprising:

• a molding die including an upper die and a lower die which faces the upper die;
• a die clamping mechanism that clamps the molding die;
• and
• a liquid resin discharging mechanism that supplies, to a supply target, a liquid resin which is to be used in the molding die;
• and
• a controller configured to control operations of a liquid resin discharging mechanism,
• wherein the operations of the liquid resin discharging mechanism comprise:
• supplying a liquid resin contained in a first cartridge, which is held by a liquid resin discharging mechanism, to a supply target by pushing out the liquid resin by using a rod, wherein the first cartridge has a remaining amount of liquid resin smaller than a target supply amount appropriate for a one-time resin supply to the supply target,
• replacing the first cartridge held by the liquid resin discharging mechanism with a second cartridge already subjected to dripping out so that the second cartridge is held by the liquid resin discharging mechanism,
• supplying a liquid resin contained in the second cartridge, which is held by the liquid resin discharging mechanism, to the supply target by pushing out the liquid resin by using the rod,
• before supplying the liquid resin contained in the first cartridge to the supply target, measuring the remaining amount of the liquid resin contained in the first cartridge, and
• after measuring the remaining amount of the liquid resin contained in the first cartridge and before supplying the liquid resin contained in the first cartridge to the supply target, replacing the first cartridge held by the liquid resin discharging mechanism which supplies a liquid resin to the supply target with the second cartridge, performing dripping out of the second cartridge using the liquid resin discharging mechanism, and again replacing the second cartridge held by the liquid resin discharging mechanism with the first cartridge.