JPS63663Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a coiled sheet fragment removal device that removes defective parts of a coiled sheet and sheets remaining near the winding core by unwinding the coiled sheet. .

Sheet materials such as aluminum foil are usually wound up using a winding core, and if a defective portion occurs during the winding operation, it is removed. Also, when a coiled sheet is rewound and replaced with a new coiled material, the old coiled material has a coiled sheet remaining near the winding core, and this remaining sheet must be removed in order to reuse the winding core. I have to.

To remove the defective parts of the sheet and the remaining coiled sheets as described above, there are methods such as making a cut along the axis of the coil on the outer periphery of the coil and cutting it open, or making a pair of parallel cuts on the outer peripheral edge of the coil and cutting it open. A method of tearing the torn piece formed between the notches along the axis of the coil, and a method of making a notch in the outer peripheral end of the coil to form a torn piece, holding this torn piece, and applying rotation to the coil to create a spiral. There are conventional methods of tearing the material into shapes, but all of these methods are inefficient because they are manual, have unstable working postures, and are dangerous because they use a knife to make cuts.

The object of this invention is to solve the above-mentioned drawbacks and to provide a removing device with a simple structure that allows coiled sheet pieces to be removed efficiently and safely.

This idea involves rotatably fitting a conical coil expansion rotary support plate to the lower part of the outer periphery of a rotatable rotating shaft that stands up from a pedestal, and utilizing the differential rotation between the coil expansion support plate and the rotation shaft. A coiled sheet piece of a coiled material set on a rotating shaft is unwound.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIG. 1, the pedestal 1 includes a bearing cylinder part 2, and a rotary shaft 4 is rotatably supported by the bearing cylinder part 2 via a bearing 3. As shown in FIG.

It is preferable that the rotating shaft 4 has a hemispherical tip or a rounded outer corner so that the winding core 11 of the coil body 10 can be easily fitted therein. A conical seat expansion rotation support plate 5 is fitted on the outside of the rotation shaft 4, and a flange 6 formed at the lower part of the outer circumference of the rotation shaft 4 rotatably supports the seat expansion rotation support plate 5. .

The removal device shown in the example has the above structure,
This removing device fits the lower part of the winding core 11 of the coiled material 10 onto the rotating shaft 4, and winds the coiled sheet 12 by applying rotation in the direction opposite to the sheet winding direction to the coiled material in the upright state. I'll try to put it back.

Here, examples of the coiled sheet that can be rewound by the removing device include thin metal plates such as aluminum foil and copper plates, paper, and plastic sheets.

Further, as a means for imparting rotation to the coiled object 10 set on the rotating shaft 4, as shown in FIG. like thing 10
In addition to the method of inserting the motor into the winding core 11 and manually rotating the rotating handle 20, it is also possible to adopt a method of transmitting the rotation of the motor to the rotating shaft via a normal transmission means.

Now, when the winding core 11 of the coiled material 10 is fitted onto the rotating shaft 4 and its lower end is received by the flange 6, and the coiled material 10 in the upright state is rotated in the opposite direction to the sheet winding direction, the coiled material 10 is rotated. The sheet 12 is sequentially rewound starting from the outermost periphery. This rewound coiled sheet 12 is then received at its end by the rotary receiving plate 5, and is rewound while further expanding its outer diameter.

Here, since the rotary receiving plate 5 is rotatably supported with respect to the rotating shaft 4, the contact friction force and The receiving plate rotates at a slightly lower speed than the coiled material 10 due to resistance due to its own weight, and the differential rotation between the two allows the coiled sheet 12 to be unwound smoothly and continuously. Also,
Since the rotary receiving plate 5 has a conical shape with a downward slope toward the outer periphery, the unwound coiled sheet 1
2 is expanded outward, and the coiled sheet 12 is finally released from the winding core 11.

Note that the outer diameter of the coiled sheet whose diameter has been expanded by the rotary receiving plate 5 is approximately equal to the size of the rotating receiving plate 5. Therefore, as shown in FIG. 2, the diameter of the unwinding coil can be further increased by providing an extended receiving plate 7 of the same shape rotatably or non-rotatably on the outside of the rotating receiving plate 5. .

As described above, this invention unwinds the coiled sheet by a simple operation of setting the coiled object on the rotating shaft and then rotating the coiled object in the opposite direction to the winding direction of the coiled sheet. In addition, since the rotary receiving plate that receives the lower end of the rewound coiled sheet is conical and rotates differentially with respect to the rotating shaft, the coiled sheet can be continuously and smoothly rolled. can be removed efficiently.

Moreover, since no cutlery is used, it is safe, and since the device is fixed, the working posture is comfortable and the work can be carried out safely.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing one embodiment of the removing device according to this invention, and FIG. 2 is a longitudinal sectional front view showing another embodiment of the same. 1... Pedestal, 4... Rotating shaft, 5... Rotating receiving plate.

Claims (1)

[Scope of utility model registration request] A coil-like structure consisting of a pedestal, a rotatable rotating shaft that stands up from the pedestal, and a conical coil expansion rotary receiving plate that is rotatably fitted to the lower outer periphery of the rotating shaft. Sheet fragment removal device.