JPH0424550U

JPH0424550U -

Info

Publication number: JPH0424550U
Application number: JP6437890U
Authority: JP
Priority date: 1990-06-20
Filing date: 1990-06-20
Publication date: 1992-02-27

Description

[Brief explanation of the drawing]

第１図は本考案に係わるラツプマシンのフイル
ム繰出装置の一実施例を示した部分破断側面図、
第２図は第１図中の−線矢視断面図、第３図
は第１図中の−線矢視断面図、第４図は第３
図の他の実施例を示した断面図、第５図は本考案
の具体的実施例であるラツプマシンを示した側面
図、第６図はその平面図、第７図は第５図中の載
置台を示した平面図、第８図は第５図の部分破断
背面図、第９図は第５図の作用を説明するための
側面図、第１０図は従来のラツプマシンのフイル
ム繰出装置を示した平面図、第１１図は他の従来
のラツプマシンのフイルム繰出装置を示した平面
図である。図中、７１はフイルム繰出装置、７２はフイル
ムリール、７３は第一のローラたる駆動ローラ、
７４は第二のローラたる制動ローラ、７５は中間
ローラ、７６はレバ手段、７７は張力調節手段た
る回転制御機構、８３は回転駆動系たる油圧モー
タ、９６は感知ローラ、９７は支持ロツド、９８
は調節部材たる流量制御弁、１３１は張力調節手
段たる張力吸収機構である。 FIG. 1 is a partially cutaway side view showing an embodiment of a film feeding device for a wrapping machine according to the present invention;
2 is a sectional view taken along the - line in FIG. 1, FIG. 3 is a sectional view taken along the - line in FIG.
5 is a side view showing a lap machine which is a specific embodiment of the present invention, FIG. 6 is a plan view thereof, and FIG. 7 is a sectional view showing another embodiment of the present invention. FIG. 8 is a partially broken rear view of FIG. 5, FIG. 9 is a side view for explaining the operation of FIG. 5, and FIG. 10 is a film feeding device of a conventional wrap machine. FIG. 11 is a plan view showing another conventional film feeding device of a wrapping machine. In the figure, 71 is a film feeding device, 72 is a film reel, 73 is a drive roller which is a first roller,
74 is a brake roller which is a second roller, 75 is an intermediate roller, 76 is a lever means, 77 is a rotation control mechanism which is a tension adjusting means, 83 is a hydraulic motor which is a rotational drive system, 96 is a sensing roller, 97 is a support rod, 98
Reference numeral 131 indicates a flow control valve which is an adjustment member, and 131 a tension absorption mechanism which is a tension adjustment means.

Claims

[Claims for Utility Model Registration] 1. A first roller that is separated from a film reel and rotates while winding the film, and a second roller that is in contact with the film reel and that is controlled to rotate at a speed lower than that of the first roller. a second roller, an intermediate roller for winding the film between the film reel and the first roller, and an intermediate roller for winding the film between the film reel and the first roller; A film feeding device for a wrap machine, characterized in that it is equipped with a lever means for pressing against a reel side. 2. A first roller that is separated from the film reel and rotates while winding the film, a second roller that is in contact with the film reel and whose rotation is controlled to a lower speed than the first roller, and the film reel. an intermediate roller for winding the film between the intermediate roller and the first roller; lever means for pressing the second roller toward the film reel using the intermediate roller as a point of force and the second roller as a point of action; A film feeding device for a wrap machine, comprising tension adjusting means for engaging the film on the rotational downstream side of the first roller and adjusting the tension of the film. 3. A film feeding device for a wrap machine according to claim 1 or 2, wherein said first roller is connected to a rotational drive system for driving at a predetermined rotational speed. 4. A film feeding device for a wrap machine according to claim 1, wherein said tension adjusting means comprises a rotation control mechanism that controls the rotational speed of said first roller in accordance with said tension. 5. The rotation control mechanism includes a sensing roller that is located on the rotational downstream side of the first roller and winds the film, a support rod that swingably supports the sensing roller, and a swinging angle of the support rod. 5. A film feeding device for a wrapping machine according to claim 4, further comprising an adjusting member for adjusting the speed of said first roller. 6. A film feeding device for a wrap machine according to claim 2 or 3, wherein said tension adjusting means comprises a tension absorbing mechanism that absorbs excessive tension by changing the feeding path of said film.