JPH0280508U

JPH0280508U -

Info

Publication number: JPH0280508U
Application number: JP1988159760U
Authority: JP
Priority date: 1988-12-07
Filing date: 1988-12-07
Publication date: 1990-06-21
Anticipated expiration: 2003-08-19
Also published as: JPH0532412Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す全体の側面図、
第２図は前図におけるＡ部の拡大図、第３図は前
図におけるフイルムと装置との関係を示す展開図
、第４図は包装製品の斜視図、第５図は従来の包
装製品の説明図である。１０…保有軸、１１，１２…引出しロール、１
４…フオーマ、１５，１６…引張りロール、１７
…センターシーラ、１８…コンベヤ、２２…加熱
トンネル、２５…ベースロール、２８，２９…折
込みロール、３１…溶着部材、３２…溶着、３６
…回転刃、４０…ミシン目、４５…切断刃、５０
…切り目。 FIG. 1 is an overall side view showing an embodiment of the present invention;
Fig. 2 is an enlarged view of part A in the previous figure, Fig. 3 is a developed view showing the relationship between the film and the device in the previous figure, Fig. 4 is a perspective view of the packaged product, and Fig. 5 is a conventional packaged product. It is an explanatory diagram. 10... Holding shaft, 11, 12... Drawer roll, 1
4... Former, 15, 16... Tension roll, 17
... Center sealer, 18 ... Conveyor, 22 ... Heating tunnel, 25 ... Base roll, 28, 29 ... Folding roll, 31 ... Welding member, 32 ... Welding, 36
... Rotating blade, 40... Perforation, 45... Cutting blade, 50
...cut.

Claims

[Claims for Utility Model Registration] A roll-shaped band-shaped film supported on a holding shaft is pulled out using a pull-out roll, and the film is shaped into a cylinder around the product being transported at regular intervals. After heat-sealing the edges along the direction and cutting the cylindrical film between each product using a cutting device, the products are fed into a heating tunnel in order to heat-shrink the film. In the shrink packaging machine, a pair of rollers 28 are provided in an overlapping manner to form folds 30 having a Z-shaped cross section along the longitudinal direction of the film from the film holding shaft to the pull-out roll. , 29, a pair of welding members 31, 31 for welding both sides of the pleats 30 together, and two perforations 40 along the inside of both the welding members 32, 32,
a pair of rotary blades 36, 36 for forming 40;
Cuts 5 are equally spaced between the perforations 40, 40.
A film reinforcement tear forming device in a shrink packaging machine, which comprises a cutting blade 45 for providing a 0. The film reinforcing tear forming device for a shrink packaging machine according to claim 1, characterized in that a heater (42) is provided within the pair of rotary blades (36, 36) for forming perforations in the pleats. The film reinforcement tear forming device for a shrink packaging machine according to claim 1, characterized in that a heater 49 is provided in the cutting blade 45 that forms the cuts between the perforations. A reinforcing tear-forming device for a film in a shrink packaging machine according to claims 1 and 3, characterized in that the cutting blade 45 for forming the cuts between the perforations is H-shaped.