JPS6333880Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The invention consists of a first rotating body that rotates at a predetermined speed and a second rotating body that rotates at a higher speed. The present invention relates to a tape feeding device that feeds the tape over the body.

[Technical background of the invention]

Conventionally, devices for feeding out tapes such as aluminum foil tapes whose back surfaces are coated with adhesive include a first rotating body consisting of a plurality of rollers arranged in a row in the axial direction with a predetermined gap, and a device similar to this. A second rotating body formed in
The adhesive side of the tape is passed from the rotating body to the second rotating body, the first rotating body is rotated at a predetermined speed, and the second rotating body is rotated at a higher speed than the first rotating body. Then, the tape is pulled out from the tape coil by the first rotating body, and the tape is twisted by the second rotating body, which rotates at high speed, while preventing the tape from being wrapped around the first rotating body. There is a structure that allows it to be fed out.

[Problems with the Background Art]

However, in the above-mentioned conventional device, when the tape moves from the first rotating body to the second rotating body, tension is instantaneously applied to the adhesive surface side of the tape. A slight warpage inevitably occurs in the opposite direction, and this causes a problem in that the tape sequentially curls and spreads in the valley between the second rotating body and the first rotating body.

[Purpose of invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tape feeding device that can smoothly feed the tape one after another without curling the tape.

[Summary of the idea]

The present invention comprises a first rotating body and a second rotating body, each of which is composed of a plurality of rollers arranged in an axial direction with a predetermined gap between them, and a portion of the other roller inserted into each gap. A tape coated with adhesive is applied to the back surface from the first rotating body to the second rotating body, the first rotating body is rotated at a predetermined speed, and the second rotating body is rotated at a predetermined speed. In the tape feeding device, the tape is sequentially fed out by rotating a rotating body at a higher speed than a first rotating body, the tape dispensing device having a pointed tip in the vicinity of both the first and second rotating bodies. A guide member having a shape is disposed such that its tip part enters the valley between the two rotating bodies, thereby forcibly shaping the warpage of the tape fed out from the second rotating body. It is characterized in that the tape is fed out.

[Example of idea]

An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, reference numeral 1 denotes a coil support shaft, which supports the tape coil 2 in a rotatable manner. This tape coil 2 is made by winding a tape 3 made of aluminum foil coated with an adhesive on the back side and a release sheet 4 applied to the back side of the tape 3. Reference numeral 5 denotes a braking mechanism, which consists of a brake shoe 6, a spring 7, etc., and this braking mechanism 5 constantly applies a braking force to the tape coil 2, but when a tension of a predetermined value or more is applied to the tape coil 2, This allows the tape coil 2 to rotate. Reference numeral 8 denotes a winding bobbin, which is rotatably driven by a motor 9, and the release sheet 4 is wound up by the winding bobbin 8. 10
is the first rotating body, as shown in Figure 2,
For example, five disk-shaped rollers 12 are attached to the shaft portion 11.
are arranged integrally with the shaft portion 11 in the axial direction with a predetermined gap therebetween, and the outer peripheral surface of each roller 12 is knurled. Reference numeral 13 denotes a second rotating body, which has, for example, four disc-shaped rollers 15 mounted on the shaft 14 with a predetermined gap (a gap equivalent to the above-mentioned first rotating body 10). The shaft portion 1 in the axial direction
The outer peripheral surface of each roller 15 is also knurled. The first rotating body 10 and the second rotating body 13 are arranged so that the opposing roller partially enters the gap between them. The first rotating body 10 is rotated by a motor 16 at a predetermined rotational speed in the direction of the arrow in FIG. 3 (counterclockwise), and the second
The rotating body 13 is also rotated counterclockwise via a transmission mechanism 17 at a higher speed than the first rotating body 10. In addition, in Figure 1, 18
is a tension roller. Now, in FIGS. 1 and 3, 19 is a guide member, and this is formed so that its tip 19a is pointed, and the angle θ of the tip 19a is set to approximately 90 degrees. ing. The guide member 19 has its tip 19a positioned in the valley A between the rotating bodies 10 and 13.
It is disposed near both rotating bodies 10 and 13 so as to be inserted into the body.

Now, the operation of the above configuration will be explained. First, the release sheet 4 is hooked on the winding bobbin 8 in advance, and
The tape 3 is passed through the outer surface of the tension roller 18, and the adhesive side of the tape 3 is applied to the first rotating body 10, and then the tape 3 is passed through the outer surface of the tension roller 18, and then the tape 3 is passed through the outer surface of the tension roller 18, and the adhesive side of the tape 3 is applied to the first rotating body 10.
0 and the second rotating body 13 are rotationally driven. Then, the release sheet 4 is wound up by the take-up bobbin 8, while the tape 3 is wound around the tape coil 2 by the rotation of the first rotating body 10, as shown in FIGS. 4a to 4c.
It is pulled out and crushed by the second rotary body 13. As shown in FIG. 4a, this folded tape 3 warps in the direction away from the second rotating body 13 in the valley A between the two rotating bodies 10 and 13, but there is no warping in the valley A. Since there is a guide member 19 that enters, the tip portion 19 of the guide portion 19
The warp of the tape 3 is forcibly shaped on the lower surface a, so that the tape 3 is sequentially fed out without curling. Note that the tape 3 that has been fed out is then cut into a predetermined length by a cutter (not shown).

In the above embodiments, an aluminum foil tape was used as an example of the tape, but the present invention can be applied to various other tapes. Further, the tip portion 1 of the guide member 19
The angle θ of the tape 9a is not limited to 90°, and the angle θ may be changed as appropriate, and in this case, the feeding direction of the tape 3 can be changed as appropriate.

In addition, it goes without saying that the present invention is not limited to the embodiments described above and shown in the drawings, and can be modified in various ways without departing from the spirit of the invention.

[Effect of idea]

As is clear from the above description, the present invention uses a guide member to forcibly warp the tape in the valley between the first rotating body and the second rotating body rotating at a higher speed. This has the practical effect of being able to reliably prevent the tape from curling in the valley area, and allowing the tape to be fed out very smoothly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with Fig. 1 being a schematic side view of the entire device, Fig. 2 being an enlarged front view of the first rotating body and the second rotating body portion, and Fig. 3 showing the main parts. The enlarged side views and FIGS. 4a to 4c are schematic side views of main parts for explaining the operation. In the figure, 2 is a tape coil, 3 is a tape, 4 is a release sheet, 10 is a first rotating body, 12 is a roller,
13 is a second rotating body, 15 is a roller, and 19 is a guide member.

Claims (1)

[Scope of utility model registration request] A first rotating body and a second rotating body each having a plurality of rollers arranged in an axial direction with a predetermined gap between each other, each of which has a roller of the other party partially inserted into each gap. A tape coated with an adhesive on the back side is applied from the first rotating body to the second rotating body, the first rotating body is rotated at a predetermined speed, and the second rotating body is rotated. The tape is sequentially fed out by rotating at a higher speed than a first rotating body, and the guide member has a pointed tip near both the first and second rotating bodies. A tape feeding device characterized in that the tape feeding device is arranged such that its tip end enters the valley between the two rotary bodies.