JP2000272813A - Easily tearing machining tool for winding tape and machining method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machining tool capable of applying one-time arbitrarily easily tearing machining to a winding tape in a process for simply rewinding or winding the winding tape without providing a specific machining process. SOLUTION: Rotating shafts 2 are extended from both the ends of rotors 4 in a cylindrical shape at its outline, respectively. A pair of machining bodies formed by journaling the rotating shafts 2 on supporting frames 4 are provided. The rotating shaft 2 of each rotor 1 is placed on the same plane in such a way that the space of one rotating shaft of both the rotors is widened compared with the space of the other rotating shaft. At least on the outer periphery of one rotor hard fine protrusions 3 are provided by aggregating densely. In addition, the circumferential surface of a winding tape 7 is abutted to the circumferential surfaces of the pair of rotors 1. The winding tape 7 is wound or rewound with a machining tool 6 pressing against the central part of the winding tape 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables easy tearing of a wound tape by hand along both or one edge line when winding or unwinding the wound tape. The present invention relates to an easy tearing tool and an easy tearing method.

[0002]

2. Description of the Related Art In Japanese Patent No. 2789524, the applicant has a processing tool shaft penetrating at the center in the longitudinal direction, and has a processing portion wider than the width of the tape to be processed. There has been disclosed a processing tool having an inclined surface having a diameter that continuously decreases toward at least one of the inclined surfaces, and having a finely machined surface on which hard and fine projections are densely provided on at least one of the inclined surfaces. When the wound tape rotates during unwinding or winding, this processing tool can easily use a normal tape because the outermost layer of the tape is easily torn. It is an excellent tool without the risk of breakage.

[0003]

However, in the above-mentioned processing tool, a group of hard projections for performing easy tearing is provided on the inclined surface of the processing tool. It was difficult. As another method, by developing a method of performing easy tearing using a processing tool provided with protrusion groups for easy tearing on the circumferential surface of the outer cylindrical processing tool, a processing tool with higher precision can be obtained. It can be manufactured more easily.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and the structure of the present invention is as follows. Rotating shafts extend from both ends of an outer cylindrical rotating body, and the rotating shafts are mounted on a support frame. While providing a pair of supported processing bodies, the rotation axis of each rotating body is on the same plane, the interval between one rotating axis of both rotating bodies is disposed wider than the interval between the other rotating axes, at least one of the rotating bodies It is characterized in that hard and fine projections are densely provided on the outer peripheral surface of the rotating body, and further arranged so that the circumferential surface of the winding tape abuts on the circumferential surface of the pair of rotating bodies. And winding and unwinding the wound tape while pressing the processing tool toward the center of the wound tape.

According to the present invention, there is provided a cylindrical rotating body having two rotating shafts extending from both ends of the same shape, and the rotating shafts of the rotating bodies are arranged on the same plane with a distance between one rotating shaft of the two rotating bodies. Is arranged with a wider interval between the other rotation axes, that is,
The winding tape is inserted easily from the open side of both rotating bodies so that both ends of the winding tape are sandwiched between the circumferential surfaces of the pair of rotating bodies. If a group of fine hard projections is densely provided on at least one of the rotating bodies, the rotating body also rotates when the winding tape rotates for unwinding or winding. By applying a pressing force toward the center of the winding tape to the rotating body, the end of the winding tape is always pressed at a constant pressure, and a set of scars that transfer the projections is provided, and it is easy to use the hand force. Can be torn.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The wound tape in the present invention is
It is a tape-shaped long film wound around a paper tube having a width of 5 to 100 mm or more. It is sufficient that a tape having a tear resistance that cannot be broken by hand is evenly wound around the paper tube with a constant tension. The substrate having a tear resistance that cannot be broken by hand is generally a plastic film, and also includes a laminate of the plastic film and another substrate such as paper or aluminum foil. Generally, width 1
A wound tape of about 0 to 50 mm is suitable for the practice of the present invention.

It is important that the winding tension is constant,
When a constant unwinding force is applied, the unwinding amount is constant, and when the winding tape rotates, a processing tool described later also rotates at a constant speed to perform stable processing. The processing tool of the present invention is also used for winding a tape. In this case, the tape is wound with a constant tension, and a wound is formed on the outermost layer of the wound tape while winding.

The wound tape of the present invention can be used for an adhesive tape having one surface coated with an adhesive, and can also be used for a wound general packaging material not coated with an adhesive.

FIG. 1 is a front view showing a state where a wound tape is being processed by the processing tool of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a side view showing a part of a wound tape unwinding machine. is there.

Reference numeral 1 denotes a rotating body having a columnar or cylindrical appearance, and rotating shafts 2 extending from both ends.
It does not need to be exactly cylindrical, and in some cases it may be slightly inclined and truncated cylindrical. The material of the rotating body 1, particularly the material of the outer peripheral surface is a hard material such as hardened steel, ceramics, hard plastic, or the like, and fine projections 3 are densely provided on the surface. The rotating shafts extending outward from both ends are supported by a support frame 4. 5 is a fixed frame.

In FIGS. 1 and 2, since the support frame 4 is fixed to the support plate 5, the fixed plate 5 constitutes a part of the support frame 4. The supporting frame 4 can be fixed to the fixing plate 5 by pivoting. The rotating body 1 and the rotating shaft 2 may be easily connected to each other, and the rotating shaft 2 may be easily connected to the support frame 4 (or the fixed plate 5). 2 or one of the rotating shaft 2 and the support frame 4 (or the fixed plate 5) must be easily rotatably connected.

In the present invention, two sets of the rotating body, the rotating shaft and the support frame combined by the above-mentioned method are required in combination with the above-mentioned method. The two rotating shafts 2 are fixed to the support frame 4 so that one end of each of the rotating bodies is close to one plane and the other ends are separated from each other and are arranged in a "C" shape to obtain the processing tool 6. The processing tool 6 is laid on the outer peripheral surface of the winding tape 7,
The circumferential surface of the rotating body 1 is brought into contact with both ends of the winding tape 7 and a constant pressing force is applied from above the processing tool. There is no particular limitation on the pressing means, and a spring may be used as shown in FIG. 3, a weight may be suspended, or the weight may be used.

As shown in FIG. 1, a hard fine projection group is provided on one circumferential surface of the rotating body 1, and a projection 3 is provided on the other rotating body.
If no tape is provided, only one end of the tape is easily torn, and if hard and fine projections 3 are densely provided on both rotating bodies 1, the tape is easily torn at both ends. Processing is performed.

The size and shape of the projection 3 provided on the rotating body 1
The density is also free, and various types of rotating bodies of different sizes, shapes and densities are prepared, and the supporting frame 4 is adjusted to the tape to be processed.
It can also be removably attached to.

Since the diameter and length of the rotator and the angle between the two rotators vary depending on the width and material of the tape, various types of processing tools can be prepared. Alternatively, two rotation shafts of one rotating body may be mounted on the support frame 4 so that the angle at which the support frame 4 is mounted on the fixed plate 5 can be adjusted.

Further, the fixing plate 5 is not limited to a disk shape but may be a rectangular plate shape. The spacing may be adjustable. In addition, by fixing the upper end of the central portion of the fixing plate 5 and making the interval between the lower ends adjustable, the interval and angle between the pair of rotating bodies can be adjusted.

In FIG. 3, reference numeral 8 denotes a paper core of a wound tape, 9 denotes a reel for fixing the paper core, and 10 denotes a reel mounting shaft for rotating the reel 9 freely. The reel mounting shaft 10 is fixed to the processing machine main body 11. One end of the arm 12 is a processing tool 6
, And one end of the rotating shaft 1 is attached to the processing machine main body 11.
3 rotatably supported. Reference numeral 14 denotes a spring, one end of which is fixed to a spring fixing projection 15 provided at an intermediate portion of the arm 12 and the other end of which is fixed to a spring fixing projection 16 provided on the processing machine main body. As a result, it is pulled to the center of the wound tape 7 and one point on each of the circumferential surfaces of the two rotating bodies 1 presses both ends with the outermost periphery of the wound tape interposed therebetween.

Although a tension spring is used as the pressing means in FIG. 3, it is also possible to press the arm 12 from the opposite side with a pressing spring. Further, the type of the spring and the use position are also free.

The present invention can be used not only when unwinding and using a normal wound tape, but also when manufacturing a wound tape having a predetermined width by slitting a raw material tape.

[0020]

EXAMPLE 1 A plurality of wrapped adhesive tapes for ligating a product having an adhesive applied to one surface of a polyester film having a width of 20 mm and a thickness of 40 μm were equipped with an easy opening device as shown in FIG. Was attached to the ligation machine main body. In the shape shown in FIG.
A processing tool 6 of a wound tape, in which the protrusions 3 are densely provided on the circumferential surface of the tape, was used. As the wound tape 7 was unwound, fine scratches were formed on the tape of the outer layer, and three divided bags of the wiener sausage were ligated together. It could be easily broken by pinching and twisting with fingers.

[0021]

According to the present invention, any easy tearing process can be performed on the wound tape at once by simply unwinding or winding the wound tape without providing a special processing step. The tape thus obtained can be broken by hand only when needed, without breaking during the distribution process.

[Brief description of the drawings]

FIG. 1 is a front view of a state where a wound tape is being processed by the processing tool of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a side view showing a part of the wound tape unwinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating body 2 Rotating shaft 3 Projection 4 Support frame 5 Fixing plate 6 Processing tool 7 Winding tape 8 Paper tube 9 Reel 10 Reel mounting shaft 11 Processing machine body 12 Arm 13 Rotating shaft 14 Spring 15, 16 Spring fixing protrusion

Claims (3)

[Claims] 1. A rotating shaft extends from both ends of a rotating body having an outer cylindrical shape, and a pair of workpieces are provided which support the rotating shaft on a support frame, and the rotating shafts of the rotating bodies are coplanar. The distance between one rotation axis of both rotating bodies is arranged wider than the distance between the other rotating axes, and hard and fine projections are densely provided on the outer peripheral surface of at least one rotating body. Characteristic tool for easily tearing wound tape. 2. The tool for easily tearing a wound tape according to claim 1, wherein the rotating shaft is mounted so as to be easily rotated with respect to at least one of the rotating body and the support frame. 3. A rotating shaft extends from both ends of a rotating body having an outer cylindrical shape, and a pair of workpieces are provided, the rotating shafts being supported by a support frame, and the rotating shafts of the rotating bodies are aligned on the same plane. In addition, the distance between one rotation axis of both the rotating bodies is arranged wider than the distance between the other rotating axes, and at least one of the rotating bodies has hard and fine protrusions densely provided on the outer peripheral surface thereof. The processing tool, arranged so that the circumferential surface of the wound tape is in contact with the circumferential surface of the pair of rotating bodies, while pressing the processing tool toward the center of the wound tape, the wound tape A method for easily tearing a wound tape, comprising winding or unwinding.