Device for applying release agent to glass bottle finishing mold, method for applying release agent to glass bottle finishing mold, device for manufacturing glass bottle, and method for manufacturing glass bottle

A method of applying mold release lubricant to blow molds for manufacturing glass bottles, wherein:

• the mold release lubricant is applied to a part of blow mold forming surfaces provided on blow molds and entire surfaces of bottom mold forming surfaces provided on bottom molds, which are located in a lower part of the blow molds;
• the blow mold forming surfaces comprise a neck area forming surface to form a neck area of a glass bottle, a shoulder area forming surface to form a shoulder area of the glass bottle located below the neck area forming surface, and an engraved area forming surface to form an engraved area that is located below the shoulder area forming surface and provided on a part of a body area forming surface to form a body area of the glass bottle, having an uneven shape with respect to the body area of the glass bottle;
• one or more nozzles comprise first spray holes located at tips of the nozzles and one or more of second spray holes spaced apart from the first spray holes and provided with a plurality of spray holes circumferentially on an outer peripheral surface of the nozzles;
• the first spray holes spray the mold release lubricant in a first direction along a downward direction of an axial direction of the blow molds, and one or more of the second spray holes spray the mold release lubricant in a second direction along a horizontal direction perpendicular to the axial direction of the blow molds;
• the one or more of the second spray holes are structured so as to apply the mold release lubricant to at least one or more surfaces from among the neck area forming surface, the shoulder area forming surface, the engraved area forming surface, and an opposing surface of the blow mold, which is facing a finish mold and provided adjacent to the neck area forming surface, and the first spray holes are structured so as to apply the mold release lubricant to the entire surfaces of the bottom mold forming surfaces;
• and
• the first spray holes and the one or more of the second spray holes simultaneously spray the mold release lubricant.

A method of manufacturing a glass bottle, comprising:

• a mold release lubricant application step for applying mold release lubricant to a part of blow mold forming surfaces provided on blow molds, and entire surfaces of bottom mold forming surfaces provided on bottom molds located in a lower part of the blow molds, and a forming step to form glass bottles with the blow molds,
• in the mold release lubricant application step, one or more nozzles are provided for spraying the mold release lubricant, the nozzles comprise first spray holes located at tips of the nozzles and one or more of second spray holes spaced apart from the first spray holes and provided with a plurality of spray holes circumferentially on an outer peripheral surface of the nozzles,
• the first spray holes spray the mold release lubricant in a first direction along a downward direction of an axial direction of the blow molds, and one or more of the second spray holes spray the mold release lubricant in a second direction along a horizontal direction perpendicular to the axial direction of the blow molds,
• the blow mold forming surfaces comprise a neck area forming surface to form a neck area of a glass bottle, a shoulder area forming surface to form a shoulder area of the glass bottle located below the neck area forming surface, and an engraved area forming surface to form an engraved area that is located below the shoulder area forming surface and provided on a part of a body area forming surface to form a body area of the glass bottle, having an uneven shape with respect to the body area of the glass bottle, and in the mold release lubricant application step, the one or more of the second spray holes are structured so as to apply the mold release lubricant to at least one or more surfaces from among the neck area forming surface, the shoulder area forming surface, the engraved area forming surface, and an opposing surface of the blow mold, which is facing a finish mold and provided adjacent to the neck area forming surface, and the first spray holes are structured so as to apply the mold release lubricant to the entire surfaces of the bottom mold forming surfaces;
• and
• the first spray holes and the one or more of the second spray holes simultaneously spray the mold release lubricant.