Adhesive agent applying apparatus and adhesive agent applying method for absorbent article

摘要

An adhesive agent applying apparatus has an ejecting section that ejects a thermoplastic adhesive agent and applies the thermoplastic adhesive agent onto one surface of a continuous sheet, traveling in a predetermined travel path and relevant to an absorbent article, by ejecting the thermoplastic adhesive agent from the ejecting section. The apparatus includes a contacting-detaching mechanism that causes relative movement between the continuous sheet and the ejecting section along a contacting-detaching direction, an ejecting mechanism that performs an ejecting operation of the thermoplastic adhesive agent from the ejecting section, and a controller that controls the contacting-detaching mechanism and the ejecting mechanism. The controller controls, when a travel speed of the continuous sheet is greater than a predetermined threshold value, the contacting-detaching mechanism and the ejecting mechanism in such a manner that, while causing the ejecting section to be in contact with the one surface of the continuous sheet, the thermoplastic adhesive agent is ejected from the ejecting section, and, when the travel speed is less than or equal to the threshold value, controls the contacting-detaching mechanism and the ejecting mechanism in such a manner that the ejection of the thermoplastic adhesive agent from the ejecting section is stopped and that the continuous sheet and the ejecting section come to a spaced apart state at the time the ejection is stopped or after the ejection has been stopped.

主权项

1. An adhesive agent applying apparatus having an ejecting section that ejects a thermoplastic adhesive agent, the adhesive agent applying apparatus applying the thermoplastic adhesive agent onto one surface of a continuous sheet by ejecting the thermoplastic adhesive agent from the ejecting section, the continuous sheet traveling in a predetermined travel path, the continuous sheet being relevant to an absorbent article, the adhesive agent applying apparatus relevant to an absorbent article comprising:
a contacting-detaching mechanism that causes relative movement between the continuous sheet and the ejecting section along a contacting-detaching direction; an ejecting mechanism that performs an ejecting operation of the thermoplastic adhesive agent from the ejecting section; and a controller that controls the contacting-detaching mechanism and the ejecting mechanism, the controller controlling, in a case where a travel speed of the continuous sheet is greater than a predetermined threshold value, the contacting-detaching mechanism and the ejecting mechanism in such a manner that, while causing the ejecting section to be in a contacting state with the one surface of the continuous sheet, the thermoplastic adhesive agent is ejected from the ejecting section, and the controller controlling, in a case where the travel speed is less than or equal to the threshold value, the contacting-detaching mechanism and the ejecting mechanism in such a manner that the ejection of the thermoplastic adhesive agent from the ejecting section is stopped and that the continuous sheet and the ejecting section come to a spaced apart state at the time the ejection is stopped or after the ejection has been stopped, wherein the contacting-detaching mechanism includes a seesaw member supported in a pivotable manner, a first roller is provided on one end of the seesaw member, a second roller is provided on another end of the seesaw member, the first roller is nearer to the ejecting section than the second roller, when moving from the contacting state to the spaced apart state the first and second rollers move in opposite directions along the contacting-detaching direction.