Method for manufacturing liquid-ejecting head

A method for manufacturing a liquid-ejecting head that comprises an ejection-element unit that ejects liquid, and a liquid-supply unit in which a liquid path is formed for guiding the liquid to the ejection element unit;

• wherein
• a main mold, and a die slide mold that can slide inside the main mold and in which a mold for molding a first part of the liquid-supply unit and a mold for molding a second part of the liquid-supply unit are arranged in a direction of the slide are prepared;
• the method including:
• a first molding step for forming the first part and the second part by injecting resin into the mold for forming the first part and into the mold for forming the second part with the main mold in a closed state;
• an opening step for opening the main mold so that the first part that was formed by the first molding step belongs to the die slide mold, and the second part separates from the die slide mold;
• a sliding step for sliding the die slide mold and positioning and aligning the first part and the second part in the direction of the slide;
• and
• a second molding step for bringing the first part and second part into contact, and then closing the main mold and molding the liquid-supply unit by injecting resin for connecting the first part and second part together;
• wherein
• in the opening step, the first part belongs to the die slide mold and the second part is separated from the die slide mold by using a push-out mechanism that applies a force to at least one of the first part and the second part.