JP2652439B2 - Method and apparatus for cutting blade of thin film cutter - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method of cutting a thin film cutter for cutting a thin film such as a synthetic resin film, a metal foil or a paper which is drawn from a carton and used as a food package. And its device.

[Prior art] Conventionally, as this kind of thin film, there is a synthetic resin film called, for example, a wrap film, and this synthetic resin film is used as a food package for storing food in a refrigerator and preventing food contamination by air. Widely used at home. Such a synthetic resin film is 10 to several tens m
It is wound into a roller shape and stored in a carton. This carton has the shape of an elongated rectangular parallelepiped, and a thin-film tin plate cutter is attached along a long side of the rectangular parallelepiped.

Regarding the method of using this thin film cutter, a part of the carton is opened along a cut line provided in advance, and a required amount of a synthetic resin film in a roll is drawn out from the opening to obtain a thin film cutter made of tin. To separate.

[Problems to be Solved by the Invention] However, in the conventional configuration, since the thin film cutter is made of tin, the hand or finger only touches the thin film cutter when cutting the synthetic resin film. You may get hurt when you cut your head. In addition, some municipalities have instructed to separate refuse from incombustible thin film cutters and flammable cartons during incineration. In this case, refuse disposal was troublesome. Further, since the thin film cutter is made of tin, there is a problem that the cutting dies are remarkably worn and the polishing of the dies is difficult.

In order to address such a problem, a non-metallic thin film cutter is disclosed in an earlier application (Japanese Patent Application No. 62-40921), and this time, the blade of the nonmetallic thin film cutter is used. It is an object of the present invention to provide a method and an apparatus for cutting a thin film cutter, which can simplify cutting and reduce the cost.

[Means for Solving the Problems] The cutting method of a thin film cutter according to the present invention, which achieves the above object, comprises feeding a non-metallic belt and cutting it in a saw blade shape by a push cutting method along the feeding direction. To form an endless blade for a thin film cutter.

The thin film cutter blade cutting device of the present invention that achieves the above object uses a non-metallic belt, and conveys the belt along a feeding reel that feeds the belt and a feeding path starting from the feeding reel. And a receiving roller and a gear-shaped cutting cutter provided in contact with the transfer path.

According to a preferred embodiment of the present invention, the gear-shaped cutting cutter includes a blade portion protruding in a saw blade shape on a peripheral side surface,
It is characterized by being pressed against a receiving roller by a cylinder.

[Function] When cutting a thin film cutter, when a non-metallic belt is drawn out from a payout reel, the belt is cut into a saw blade shape in the transport direction by a gear-shaped blade cutter and a receiving roller. Thus, one or two endless blades are formed. The endless blade is conveyed to a mounting portion, where the blade is cut into a predetermined length, suction-conveyed as a thin film cutter, and mounted on a carton by heating and pressing.

Thus, the method and the apparatus for cutting the non-metallic thin film cutter can be simplified, and the cost can be reduced. Therefore, the above problem can be eliminated.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the whole of a cutting device for a thin film cutter according to an embodiment of the present invention, FIG. 2 is a plan view showing a feed reel of the device, and FIG. It is a top view which shows a receiving roller.

This apparatus uses a narrow plastic belt 1 as a non-metallic belt, and cuts it in a saw blade shape by a rotary press cutting method along a feeding direction to obtain an endless blade for a thin film cutter. 17 can be formed. Specifically, this device is a payout reel 6 with a brake.
Having. The feeding reel 6 has a function of winding several plastic belts 1 around a shaft 6a in a horizontal row and sequentially feeding the same. A receiving roller 8 is provided on a transport path 7 starting from the feeding reel 6 as described above.
Roller 9 for continuously or intermittently conveying the belt 1
Are provided in contact with each other and are pressed from above by a cylinder 10. Further, a gear-shaped cutting cutter 11 is provided in contact with the receiving roller 8, and is pressed from the side by the cylinder 3. This blade cutting cutter 11 has a blade portion 11a protruding like a saw blade on the peripheral side surface. As shown in FIG. 3, both sides of the cutting blade 11 and the receiving roller 8 are covered with friction members 12 for preventing the belt 1 from meandering.
A chip removing unit 20 is provided in the transport path 7 downstream of the receiving roller 8, and the chip removing unit 20 has a pair of brush rollers 13 that are in contact with each other, and is covered by a chamber 14. A filter 15 and a blower 16 are sequentially connected to each other so that chips generated by cutting can be removed. The endless blade 17 from which the chips have been removed is cut into a predetermined length to form a thin film cutter, which is transported to a mounting portion for mounting the thin film cutter on a carton.

Next, a method of cutting the thin film cutter of this apparatus will be described.

When performing thin film cutter and blade cutting using the above-described apparatus, a narrow plastic belt 1 coated with a hot melt adhesive in advance is used, and the belt 1 is fed from a feed reel 6 by a feed roller 9. The belt 1 is cut along the conveying direction by a cutting cutter 11, one of which is sent to a chip removing unit 20 as an endless blade 17, and the other is discharged out of the system as a loss material 17a. In the chip removing section 20, the brush roller 13 removes the chips attached to the endless blade 17, and the removed chips are sucked by the negative pressure and collected in the filter 15. The endless blade 17 from which the chips have been removed is conveyed to the mounting portion, cut into a predetermined length at the mounting portion, suctioned and conveyed as a thin film cutter, and mounted on a carton by heating and pressing.

Since the thin film cutter is made of plastic as described above, the cutting can be performed intermittently or continuously by a rotary press cutting method along the feeding direction, and compared with the case of a thin film cutter made of tin. The apparatus can be simplified and the cost can be reduced.

 Next, another embodiment will be described with reference to the drawings.

FIG. 4 is a plan view showing a state in which a wide plastic belt is used and the belt is extended. When the plastic belt 1 is 10 to 20 mm wide, if two mounting parts are provided and cutting is performed along the center of the belt 1, the loss material 17a as shown in the above embodiment can be obtained. Two endless blades 17 can be manufactured simultaneously by one cutting,
Costs can be further reduced.

FIG. 5 is a plan view showing a modified example of the receiving roller and the blade cutter. The receiving roller 8 has flanges at each end.
19 is provided so that the meandering of the belt 1 can be reliably prevented. Therefore, high-precision cutting can be performed, which is optimal when two endless blades 17 are manufactured by one cutting.

Further, in this embodiment, the case of the thin film cutter made of plastic has been described. However, the present invention is not limited to this, and the present invention can be applied to a thin film cutter made of cardboard made of hard paper or resin-treated paper. . Further, in the chip removing section 20, an air nozzle may be provided in place of the brush roller 13, and chips may be removed by an air jet.

[Effects of the Invention] According to the present invention, a non-metallic belt is fed out, and the endless blade for a thin film cutter is formed by cutting in a saw blade shape by a push-off method along the feeding direction. Therefore, the effects of reducing wear of the blade cutter, simplifying the method and apparatus for cutting the thin film cutter, and reducing the cost can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the whole of a cutting device for a thin film cutter according to an embodiment of the present invention, FIG. 2 is a plan view showing a feed reel of the device, and FIG. FIG. 4 is a plan view showing a receiving roller, FIG. 4 and subsequent figures show other embodiments, FIG. 4 is a plan view showing a feeding state of a wide plastic belt, and FIG. FIG. 1: Belt 6: Feeding reel 9: Feed roller 11: Blade cutter 13: Brush roller 17: Endless blade 20: Chip removal unit

Claims (3)

(57) [Claims] 1. A thin-film cutter in which a non-metallic belt is fed out, and the endless blade for the thin-film cutter is formed by cutting in a saw-tooth shape along a feeding direction by a push-cut method. Cutting method. 2. A feeding reel for feeding a belt using a non-metallic belt, a feeding means for feeding the belt along a feeding path starting from the feeding reel, and a feeding means for contacting the feeding path. A cutting device for a thin film cutter, comprising a receiving roller and a gear-shaped cutting cutter provided. 3. The blade of the thin film cutter according to claim 2, wherein the gear-shaped blade cutter has a blade portion protruding like a saw blade on a peripheral side surface, and is pressed against a receiving roller by a cylinder. Cutting device.