FILM-FITTING DEVICE AND FILM-FITTING METHOD
First Claim
1. A film-fitting device which sequentially delivers tubular films downstream while opening each tubular film by arranging the tubular film around a mandrel, and thereby causes the tubular film to be fitted around a body to be subjected to fitting that is transported to a position facing the mandrel, the film-fitting device comprising:
- a cutting mechanism that cuts a tube-forming medium into a predetermined length so as to form a tubular film having the predetermined length;
a film transfer mechanism that transfers downstream the tubular film arranged around the mandrel; and
at least one shot roller installed with its rotational shaft being slanted with respect to an axis core of the mandrel, the shot roller receiving the tubular film transferred by the film transfer mechanism, by causing the tubular film to be held between the shot roller and the mandrel, and delivering the tubular film downstream while rotating the tubular film in a circumferential direction,whereina distance from the cutting mechanism to the shot roller and a distance from the film transfer mechanism to the shot roller are both greater than the length of the tubular film formed by the cutting; and
rotational drive of the shot roller is carried out by an independent servo motor or stepping motor.
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Accused Products
Abstract
A film-fitting device includes a cutting mechanism that cuts a label-forming medium into a predetermined length, a film transfer mechanism that transfers downstream a tubular film arranged around a mandrel, and a shot roller that receives the tubular film transferred by the film transfer mechanism and delivers the tubular film downstream while rotating the tubular film in the circumferential direction. The distance from the cutting mechanism to the shot roller and the distance from the film transfer mechanism to the shot roller are both greater than the length of the tubular film formed by the cutting. Further, rotational drive of the shot roller is carried out by an independent servo motor or stepping motor.
22 Citations
23 Claims
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1. A film-fitting device which sequentially delivers tubular films downstream while opening each tubular film by arranging the tubular film around a mandrel, and thereby causes the tubular film to be fitted around a body to be subjected to fitting that is transported to a position facing the mandrel, the film-fitting device comprising:
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a cutting mechanism that cuts a tube-forming medium into a predetermined length so as to form a tubular film having the predetermined length; a film transfer mechanism that transfers downstream the tubular film arranged around the mandrel; and at least one shot roller installed with its rotational shaft being slanted with respect to an axis core of the mandrel, the shot roller receiving the tubular film transferred by the film transfer mechanism, by causing the tubular film to be held between the shot roller and the mandrel, and delivering the tubular film downstream while rotating the tubular film in a circumferential direction, wherein a distance from the cutting mechanism to the shot roller and a distance from the film transfer mechanism to the shot roller are both greater than the length of the tubular film formed by the cutting; and rotational drive of the shot roller is carried out by an independent servo motor or stepping motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A film-fitting method comprising sequentially delivering tubular films downstream while opening each tubular film by arranging the tubular film around a mandrel, and thereby causing the tubular film to be fitted around a body to be subjected to fitting that is transported to a position facing the mandrel, each tubular film being formed to have a tubular shape by overlapping two side edge portions of a film in a width direction with each other and joining the overlapped part, the tubular film having a non-joint part on a tip side of the joint part at a first side edge portion which is located on an inner side of the overlapped part, the film-fitting method wherein
the tubular film is delivered from the mandrel to the body to be subjected to fitting by delivering the tubular film downstream while rotating the tubular film in a circumferential direction toward a tip of a second side edge portion of the tubular film which is located on an outer side of the overlapped part.
Specification