JPS633921Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a coil inner circumference corner adhesive tape covering jig.

(Prior art) When packing a thin steel sheet product wound into a coil, wrapping paper is wrapped around the coil, the inner and outer circumferences and sides of the coil are protected with iron plates, and the inner and outer corners of the coil are sealed to prevent water ingress. , often lined with adhesive tape in the right angle direction.

In general, there are large diameter coils with an outer diameter of 90 cm to over 200 cm, but the inner diameter of the coil is 50 to 60 cm. Conventionally, the tightening of these coils has been done manually by pressing the adhesive tape against both the end and inner surfaces of the coil with the left hand and pulling it with the right hand to untie it. Therefore, there have been problems such as poor finish due to the lack of skill of the workers, lower back pain, cuts, and decreased work efficiency due to unnatural working postures.

(Purpose of the invention) The present invention solves these problems and provides a jig for automating the adhesive tape filling of the inner circumferential corners of the coil.

(Structure and action of the idea) The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a side view of the present invention, FIG. 2 is a front view, and FIG. 3 is a perspective view of the main parts of the present invention. In the adhesive tape covering jig of the present invention, a coil end face guide 10 made of a donut-shaped member is provided with a circular arc-shaped inner peripheral guide 11 with the center of the donut-shaped member as the core. The circular arc-shaped inner peripheral guide 11 is provided so as to be orthogonal to the surface of the coil end guide 10, has a dimension d that fits into the coil inner hole, and is divided into a plurality of pieces.
Although the figure shows an example of division into five parts, this is not particularly limited. A coil inner circumferential pressing roller 12-1 is provided between the circular arc-shaped inner circumferential guide 11-1 and the adjacent circular circular inner circumferential guide 11-2.

The roll axis of the coil inner periphery pressing roller 12 is provided perpendicular to the surface of the coil end face guide 10, and on the circular locus of the coil inner periphery guide 11, the roll axis is slightly smaller than the inner periphery guide surface toward the coil inner periphery surface. It is supported by the roll support shaft 18 so as to protrude. 1
6 is an operating handle attached to the coil end guide 10. An adhesive tape supply device 13 is provided on the side of the coil end face guide 10 opposite to the coil inner periphery pressing roller 12.

The end face pressing roller 1 is pressed against the axis of the adhesive tape 20.
The axes of 5 are parallel, but the inner circumference of the coil presser roller 1
The two axes are perpendicular to each other. As shown in Fig. 12, half of the adhesive tape is attached to the end face of the coil, and the other half is attached to the inner circumferential surface of the coil, with the center line in the width direction serving as the border. Between the coil inner pressing rollers 12, a plurality of forming rollers are provided in a notch 17 provided in the coil end guide surface, as shown in FIGS. 5 and 6 a and b.

The adhesive tape 20 is preferably a coil-shaped adhesive coated with a known adhesive. The adhesive tape supply device 13 rotatably holds the adhesive tape 20 with a tape holding shaft 21, as shown in FIGS. 4 and 5. The tape forming roller 14-1 is arranged parallel to the adhesive tape holding shaft 21, and is attached to the rotating bracket 22.
A set plate 27 is provided at the other end, and an openable/closable presser plate 24 is brought into contact with a fixed guide 26 and fixed with a rotating pin 25 and a set bolt 23.

Therefore, it is convenient to loosen the set bolt 23 and shift the open/close presser plate 24, and then lift the tape forming roller 14-1 in the direction of the arrow in FIG. 4 to set the end of the tape.

Although the adhesive tape forming roller 14 of the present invention generally consists of a plurality of rollers, a case of three rollers will be described as an example with reference to FIGS. 5 and 6. The roll axis 14-1 is parallel to the surface a of the coil end guide 10, and also serves as a guide roll. 14-2
Inclination angle α with respect to the coil end guide 10 =
25°, that of 14-3 is set to α=50°, so that the adhesive tape 20 can be easily aligned in the longitudinal direction along the center line in the tape width direction when passing through the tape forming roller of the present invention. It can be bent at right angles. In the figure, reference numeral 18 designates a coil inner pressing roller support shaft 30 as a tape forming roller support shaft.

The tape to be adhered to the end face of the coil is such that the corner of the orthogonal area between the inner diameter hole of the coil and the end face of the coil and the end face of the coil are concentric circles, but have different diameters, so it is advisable to apply the tape while giving it some elongation. For this purpose, a coil end surface pressing roller 15 having sufficient pressing force is provided parallel to the coil end surface adjacent to a plurality of forming roller groups provided in the notch of the coil end surface guide.

That is, the tape forming rollers 14-1, 2 and 3 are
As shown in Figures 3 and 6 a, b, and c, approximately half of the width of the adhesive tape is attached to the end face of the coil, and the remaining half is initially parallel to the end face of the coil. After being bent by the roller 14 along the center line in the width direction until it becomes parallel to the axis of the inner coil pressing roller 12, it is pasted onto the inner circumferential surface of the coil by a plurality of coil inner pressing rollers 12. It is something.

In the present invention, the coil inner circumferential pressing roller 12
is provided between the adjacent coil inner guides 11,
The details will be explained with reference to FIG.

The coil inner periphery pressing roller 12 has an end pivotally supported by the coil end face guide 10 and the other end supported by a rotating shaft 18. The rotating shaft 18 is provided with a torsion coil spring 44 and is fixed to the coil end guide 10 via a rotating bush 45 . The torsion coil spring 44 has a rotating stopper 42 and a fixed stopper 43, and the spring pressure acts on the inner coil presser roller 12, making it suitable for binding the adhesive tape 20.

FIG. 8 is a partial view of the jig of the present invention applied to the end face of a coil, and FIG. 9 is a perspective view of FIG. 8.
60 is a wrapped coil, 61 is a coil outer circumferential protection paper and iron plate, and 62 is a donut-shaped board for protecting the end face of the coil.

When the jig of the present invention is applied to a coil inner hole, a notch 50 is provided in the coil inner guide 11 to accommodate changes in the coil inner diameter, and an adjustment bolt 51 is used to adjust the diameter d of the coil inner guide 11. Make it adjustable.

Next, the operation using the jig 70 of the present invention will be explained.

FIG. 10 shows a partial view of the packaged coil 60 in which the coil end face protection plate 62 is brought into contact with the adhesive tape 20 and a perspective view of the jig 70 of the present invention applied thereto.

In FIG. 11, a doughnut-shaped coil end face protection plate 62 is brought into contact with a wrapped coil 60, and an adhesive tape 20 is applied.
FIG. 2 is a cross-sectional view and a partial side view. 1st
FIG. 2 is a schematic diagram of the flow of adhesive tape formation in the present invention.

That is, in the present invention, one end of the adhesive tape is set so that about half of its width is attached to the end surface of the coil, and the remaining half is attached to the inner circumferential surface of the coil, and the entire jig is pressed against the end surface and inner circumferential surface of the coil. By rotating the adhesive tape to the right toward the end face of the coil, the adhesive tape is formed by multiple forming rollers in a direction perpendicular to the center of its width, and is wrapped around the inner corner of the coil. Furthermore, one end face pressing roller and a plurality of coil inner periphery pressing rollers uniformly apply adhesive tape to the inner periphery corner of the coil end face at the same time on the end face side and the inner periphery side, and between the coil hole and the end face. It is possible to easily seal the corners of.

The working procedure using the jig of the present invention will be explained below.

First, loosen the set bolt 23 of the adhesive tape as shown in Figures 4 and 5, turn the opening/closing presser plate 24 toward you, lift the No. 1 forming roller 14-1 around the rotating bracket 22, and bond it. Manually pull out the end of the tape to a position approximately midway between forming rollers 14-1 and 14-2, insert the inner guide 11 of jig 70 into the coil hole, and coil approximately half the width of the adhesive tape. After manually pasting about 5 cm in length on the end face and the remaining half on the inner peripheral surface of the coil, the forming roller 14-1 is returned to its original position.

Next, the jig 70 is rotated to the right by the handle 16 toward the end face of the coil. Although the peripheral mechanism is not particularly limited, in addition to manual operation using a handle as shown in FIG. 3, the entire jig may be held by an ordinary mechanism and rotated while approaching the end face of the coil. About 5 cm in length at the tip of the adhesive tape, about half of its width is attached to the end face of the coil, and the remaining half is attached to the inner circumference of the coil, so as the entire jig rotates, , Figures 5 and 6a,
As shown in b and c, a plurality of forming rollers 14,
After the adhesive tape 20 is shaped as required by a plurality of inner circumferential pressing rollers 12 and coil end pressing rollers 15, the adhesive tape 20 is formed as shown in FIGS.
As shown in Figure 2, it is attached to the corner of the boundary between the coil hole and the end face of the coil.

Then, after rotating the entire jig once, the forming rollers 14-1 and 14
Cut the tape between -2. Although the cutting method is not shown, it is not particularly limited. Adhesive tape forming roller 1
4. The coil end surface pressing roller 15 and the coil inner circumferential surface pressing roller 12 are used to ensure a smooth pressing effect.
It is preferable to line the surface with an elastic material such as rubber.

(Effects of the invention) Mechanization of the sealing work for the inner circumferential corners of the coil was previously difficult, but it has become possible to mechanize it easily with the jig of the present invention. In addition, even if the work is done manually as a portable jig, regardless of the skill level of the work,
The finish was good and uniform, and work efficiency was greatly improved. In some cases, the time required for coil inner corner and blinding work has been reduced by approximately 30% compared to manual work.

[Brief explanation of the drawing]

FIG. 1 is a side view of the present invention, FIG. 2 is a front view of the present invention, FIG. 3 is a perspective view of the present invention, FIG. 4 is a side view of the adhesive tape supply device of the present invention, and FIG. 5 is a front view of the present invention. 4 is a partial explanatory diagram, FIG. 6 is an explanatory diagram of the tape forming process of the present invention, FIG. 7 is an explanatory diagram of the presser roller of the present invention, FIG. 8 is a partial explanatory diagram of the present invention, and FIG. 9 is a partial explanatory diagram of the present invention. 8
Fig. 10 is a perspective view of the entire structure when the jig of the present invention is installed in the coil hole to be packaged, and Fig. 11a is a perspective view of the figure.
12 is an overall side view of the jig of the present invention, b is a sectional view of the wrapped coil, and FIG. 12 is an explanatory diagram of the operation of the present invention. 10... Coil end face guide, 11... Coil inner circumferential guide, 13... Adhesive tape supply device, 14...
... Forming roller, 15 ... Coil end face pressing roller,
16...Handle.

Claims (1)

[Scope of utility model registration request] a coil end guide made of a donut-shaped member;
An operating handle is provided integrally, a circular arc-shaped inner circumferential guide perpendicular to the end guide is divided into a plurality of pieces along the circumference, and a holding device using a spring is installed between the divided coil inner circumferential guides. An adhesive tape supply device is provided on the coil end guide on the opposite side to the coil inner circumference guide mounting surface, and an adhesive tape supply device is provided on the coil end guide on the opposite side to the coil inner circumference guide mounting surface. A plurality of tape forming rollers for bending the center part of the adhesive tape in the width direction at right angles to the longitudinal direction are provided between the inner circumferential pressing roller and the tape forming rollers are provided through the cutout windows of the coil end guide, and the tape forming rollers are provided adjacent to the adhesive tape supplying device. A jig for covering an adhesive tape at an inner circumference corner of a coil, characterized in that the tape forming roller is swingable in a direction perpendicular to the end face of the coil, and a coil end face pressing roller is provided adjacent to the cutout window.