JP6982547B2 - Tape removal method and tape remover - Google Patents

Description

The present technology relates to a tape removing method and a tape removing tool for removing a tape connecting an end portion of an outermost peripheral portion of a metal strip (for example, a steel strip) and an inner portion of the metal strip.

Conventionally, in the production of a transformer, a wound iron core composed of a steel strip is wound around an annular coil bobbin as follows. First, the inner roller is arranged inside the winding core, the outer roller is arranged outside, and the winding core is sandwiched by the inner roller and the outer roller. Then, the outermost peripheral portion of the wound iron core is extended and inserted into the central opening of the coil bobbin, and the end portion of the outermost peripheral portion and the portion inside the end portion of the wound iron core are connected by tape.

Then, the inner roller and the outer roller are rotated to make the wound core into a great circle having a diameter larger than that of the wound core. The operator then removes the tape and separates the inner roller from the great circle. The diameter of the great circle becomes shorter, and the reduced great circle, that is, the wound core is wound around the coil bobbin (see, for example, Patent Document 1).

Japanese Patent No. 2777070

Conventionally, when winding a wound iron core around a coil bobbin, an operator has to remove the tape directly by hand. Therefore, it takes a long time to wind the winding iron core around the coil bobbin.

The present disclosure has been made in view of such circumstances, and an object of the present invention is to provide a tape removing method and a tape removing tool capable of realizing winding of a wound metal band around a coil bobbin in a short time. ..

The tape removing method according to the present disclosure is a tape removing method for removing a tape connecting an end portion of an outermost peripheral portion of a wound metal strip and an inner portion of the metal strip located inside the end portion. A tape remover having an adhesive portion and a non-adhesive portion formed on one surface of the tape, the end portion and the inner portion connected by the adhesive portion, the wound metal band, and the insertion portion. Is relatively moved in the circumferential direction of the metal strip, the insertion portion is inserted into the gap between the non-adhesive portion and the metal strip, and the tape is peeled off from the metal strip.

In the present disclosure, the insertion portion of the tape remover is inserted into the gap between the non-adhesive portion of the tape and the metal band, and the tape is peeled off from the metal band in a short time.

In the tape removing method according to the present disclosure, the peeled tape is pressed by the pressing portion of the tape removing tool.

In the present disclosure, the peeled tape is fastened to a tape remover and collected without being released to the outside.

In the tape removing method according to the present disclosure, the insertion portion is inserted into the gap between the non-adhesive portion and the metal band so that the peeled tape moves onto the groove formed next to the insertion portion.

In the present disclosure, since the peeled tape is arranged on the groove, the contact area between the adhesive portion and the tape remover is smaller than that in the case where there is no groove, and the tape can be easily removed from the tape remover.

In the tape removing method according to the present disclosure, the tape removing tool is provided with the metal band so that the tape removing tool has an opening in which a curved portion is formed and the curved portion projects outward in the radial direction of the metal band. The tape is placed in the outermost peripheral portion of the above, and the peeled tape is taken into the opening.

In the present disclosure, the peeled tape is taken in from the opening and collected inside the tape remover.

In the tape removing method according to the present disclosure, the tape removing tool has an opening, the peeled tape is taken into the opening, the tape removing tool is separated from the metal band, and the tape taken into the opening is taken into the tape. Remove from the remover.

In the present disclosure, the tape collected through the opening is removed from the tape remover and discarded.

The tape remover according to the present disclosure includes a base plate, a wound metal band and a non-adhesive portion of a tape attached to the metal band, which protrudes from the base plate in a direction parallel to the base plate. It is provided with an insertion part for inserting into the gap of.

In the present disclosure, the insertion portion of the tape remover is inserted into the gap between the non-adhesive portion of the tape and the metal band, and the tape is peeled off from the metal band in a short time.

The tape remover according to the present disclosure includes a holding portion facing the base plate and holding the tape peeled off from the metal band.

In the present disclosure, the peeled tape is fastened to a tape remover and collected without being released to the outside.

In the tape remover according to the present disclosure, a groove is formed next to the insertion portion in the base plate.

In the present disclosure, since the peeled tape is arranged on the groove, the contact area between the adhesive portion and the tape remover is smaller than that in the case where there is no groove, and the tape can be easily removed from the tape remover.

The tape remover according to the present disclosure is provided with a frame arranged around the base plate, and the frame is formed with an opening that penetrates in a direction parallel to the base plate and takes in the peeled tape. A curved portion is formed in the opening so as to project away from the base plate.

In the present disclosure, the peeled tape is taken in from the opening and collected inside the tape remover. By providing the bend, the recovered tape can move along the bend and separate the tape from the base plate.

In the tape remover according to the present disclosure, a facing plate facing the base plate is provided in the frame, and the facing plate is formed with a second opening penetrating in a direction perpendicular to the base plate.

In the present disclosure, the tape taken in from the opening can be taken out from the second opening and discarded.

In the tape removing method and the tape removing tool according to the present disclosure, the insertion part of the tape removing tool is inserted into the gap between the non-adhesive part of the tape and the metal band, and the tape is peeled off from the metal band in a short time and wound. It is possible to wind the rotated metal band around the coil bobbin in a short time.

It is a schematic perspective view of a winding device. It is explanatory drawing explaining the winding method of winding a metal band around a coil bobbin. It is explanatory drawing explaining the winding method of winding a metal band around a coil bobbin. It is a schematic perspective view of a winding device in a state where a metal band is wrapped around a leg. It is a schematic perspective view of a tape remover. It is a schematic front view of a tape remover. It is a schematic plan view of a tape remover. It is a schematic side view of a tape remover. It is a schematic bottom view of a tape remover. FIG. 7 is a schematic cross-sectional view taken along the line XX shown in FIG. 7 as a cutting line. It is explanatory drawing explaining the method of removing the tape attached to a metal band. It is a schematic diagram which shows the tape which does not have a non-adhesive part when it is removed from a metal band. It is a schematic diagram which shows an example of the manufacturing method of manufacturing a tape having a non-adhesive portion.

Hereinafter, the present invention will be described with reference to a drawing showing a winding device for winding a metal band 50 around a coil bobbin 55, a winding method, and a tape remover 1. FIG. 1 is a schematic perspective view of the winding device.

The winding device includes a support 10 for supporting the wound metal strip 50 (for example, a steel strip). A through hole 10a is formed in the support base 10. A wound metal band 50 having an inner diameter larger than the diameter of the through hole 10a is supported by the support base 10. The metal strip 50 is arranged coaxially with respect to the through hole 10a.

The winding device includes a first rotating shaft 11 that rotates around an axis, an inner roller 11a attached to the end of the first rotating shaft 11, a second rotating shaft 12 that rotates around the axis, and the second rotation. It includes an outer roller 12a attached to the end of the shaft 12. The first rotating shaft 11 and the inner roller 11a are coaxially inserted into the through hole 10a from the opposite side (lower side of FIG. 1) of the metal strip 50. The inner roller 11a is arranged inside the metal strip 50. The first rotation shaft 11 is movable in the axial direction.

The second rotating shaft 12 and the outer roller 12a are arranged outside the metal strip 50. The second rotating shaft 12 and the outer roller 12a are arranged so as to be substantially parallel to the first rotating shaft 11 and the inner roller 11a. The second rotating shaft 12 extends from the outer roller 12a to the opposite side (upper side in FIG. 1) of the first rotating shaft 11. The second rotation shaft 12 is movable in the radial direction.

A square annular coil bobbin 55 is arranged in the vicinity of the metal band 50. The axial direction of the coil bobbin 55 is substantially orthogonal to the axial direction of the metal band 50. The two opposite sides of the coil bobbin 55 (hereinafter referred to as legs 55a) are substantially parallel to the metal band 50, and the other two sides are substantially perpendicular to the metal band 50. The metal strip 50 is arranged between the leg 55a and the outer roller 12a.

2 and 3 are explanatory views illustrating a winding method for winding the metal band 50 around the coil bobbin 55, and FIG. 4 is a schematic perspective view of the winding device in a state where the metal band 50 is wound around the leg 55a. When winding the metal strip 50 around the coil bobbin 55, first, the outer roller 12a is brought close to the metal strip 50, and the metal strip 50 is sandwiched by the inner roller 11a and the outer roller 12a. Then, the outermost peripheral portion 51 of the metal band 50 is extended, and the end portion 51a of the outermost peripheral portion 51 is inserted into the central opening 56 of the coil bobbin 55 (see FIG. 2A).

Then, the end portion 51a of the outermost peripheral portion 51 is inserted between the inner roller 11a and the outer roller 12a, and the end portion 51a and the inner portion 54 of the metal band 50 located inside the end portion 51a (see FIG. 11). ) With the tape 60 (see FIG. 2B). At this time, the outermost peripheral portion 51 forms a circle having a diameter larger than that of the metal band 50 (hereinafter referred to as a great circle 52). Next, the inner roller 11a is rotated in the direction opposite to the winding direction of the metal band 50, and the outer layer of the metal band 50 is sequentially supplied to the great circle 52 to make all of the metal band 50 into the great circle 52. (See FIG. 2C).

Then, the tape remover 1 is brought close to the outer peripheral surface of the great circle 52, and the tape 60 is removed from the great circle 52 by the tape remover 1 (see FIG. 3D). The detailed configuration of the tape remover 1 will be described later. After removing the tape 60, the first rotating shaft 11 and the inner roller 11a are pulled out from the metal strip 50. The great circle 52 contracts radially due to its elastic restoring force, and the metal band 50 winds around the leg 55a of the coil bobbin 55 (see FIGS. 3E and 4).

5 is a schematic perspective view of the tape remover 1, FIG. 6 is a schematic front view of the tape remover 1, FIG. 7 is a schematic plan view of the tape remover 1, and FIG. 8 is a tape remover 1. 9 is a schematic bottom view of the tape remover 1, and FIG. 10 is a schematic cross-sectional view taken along the line XX shown in FIG. 7 as a cutting line. In the following description, the top, bottom, front, back, left, and right shown in FIGS. 5 to 10 are used.

As shown in FIG. 9, the tape remover 1 includes a pentagonal base plate 2. The base plate 2 has a plan-view home base shape, and the tip is directed forward. An insertion portion 3 projecting forward is formed at the tip end portion of the base plate 2. The insertion portion 3 has a semicircular shape in a plan view. As shown in FIG. 10, an inclined surface 3a inclined downward toward the front is formed on the upper surface of the insertion portion 3.

As shown in FIGS. 5 and 10, a raised portion 2a projecting upward is formed on the front portion of the base plate 2. A concave portion 2b extending in the front-rear direction is formed in the central portion of the raised portion 2a in the left-right direction. As shown in FIGS. 5 to 7, on the left side and the right side of the recess 2b, a plurality of narrow grooves 2c extending in the front-rear direction are formed in the raised portion 2a. The left-right width of the groove 2c is about 1/4 to 1/5 of the left-right width of the recess 2b.

A frame 4 forming a U-shape in a plan view is provided around the base plate 2. The frame 4 has its two tips facing forward. The frame 4 includes a left frame portion 5, a right frame portion 6, and a rear frame portion 7. The left frame portion 5 is located on the left side of the right frame portion 6. The left frame portion 5 and the right frame portion 6 have a rectangular parallelepiped shape extending in the front-rear direction and face each other in the left-right direction. The front-rear dimensions of the left frame portion 5 and the right frame portion 6 are substantially the same. The rear frame portion 7 has a rectangular parallelepiped shape extending in the left-right direction, and the left end portion of the rear frame portion 7 and the rear end portion of the left frame portion 5 are connected to each other at a substantially right angle. The right end portion of the rear frame portion 7 and the rear end portion of the right frame portion 6 are connected at a substantially right angle.

The connecting portion between the rear frame portion 7 and the left frame portion 5 forms a first extending portion 8a extending diagonally forward to the right, and the connecting portion between the rear frame portion 7 and the right frame portion 6 is diagonally forward to the left. A second extension portion 8b is formed. A second opening 1b penetrating vertically is formed in a portion surrounded by the rear frame portion 7, the left frame portion 5, the right frame portion 6, the first extension portion 8a, and the second extension portion 8b. In a plan view, the second opening 1b has a home base shape with the tip facing backward.

As shown in FIG. 8, an inclined surface 6b inclined downward toward the rear is formed in the lower portion of the front end portion of the right frame portion 6, and as shown in FIG. 10, the lower portion of the front end portion of the left frame portion 5 is formed. An inclined surface 5b that is inclined downward toward the rear is formed. As shown in FIG. 9, the separation distance between the left frame portion 5 and the right frame portion 6 in the left-right direction is longer than the left-right dimension of the base plate 2. The base plate 2 is arranged between the left frame portion 5 and the right frame portion 6. The rear end portion of the base plate 2 is connected to the rear frame portion 7. A gap 2d is formed between the base plate 2 and the left frame portion 5 and between the base plate 2 and the right frame portion 6. The insertion portion 3 projects forward from the front end of the frame 4, that is, the front ends of the left frame portion 5 and the right frame portion 6.

As shown in FIG. 6, an opening 1a penetrating in the front-rear direction, that is, in a direction parallel to the base plate 2, is provided between the front end portions of the left frame portion 5 and the right frame portion 6. The opening 1a has curved portions 5a, 6a that project upward, that is, in a direction away from the base plate 2. The curved portions 5a and 6a are formed at the front end portions of the left frame portion 5 and the right frame portion 6, respectively.

As shown by the broken line in FIG. 7, a U-shaped groove 8c in a plan view is formed in the lower part of the frame 4. The groove 8c is formed so as to hollow out the lower right portion of the left frame portion 5, the lower left portion of the right frame portion 6, and the front lower portion of the rear frame portion 7, and the upper portion of the groove 8c in the frame 4 is eaves-shaped. Make an eggplant. The curved portions 5a and 6a are connected to the groove 8c.

The pressing portion 9 projects diagonally forward and upward from the central portion in the left-right direction of the rear frame portion 7. The holding portion 9 has a band shape and has a first inclined portion 9a inclined so as to rise toward the front side, a second inclined portion 9b inclined so as to descend toward the front side, a first inclined portion 9a and a second. It is provided with a top portion 9c connecting the inclined portions 9b. The first inclined portion 9a projects diagonally forward and upward from the upper side of the groove 8c of the rear frame portion 7. A top portion 9c is formed at a protruding end portion of the first inclined portion 9a. The second inclined portion 9b projects diagonally forward and downward from the top portion 9c. The top portion 9c is arranged above the frame 4, and is arranged at a position corresponding to the front end portions of the left frame portion 5 and the right frame portion 6 in the front-rear direction. The front end of the second inclined portion 9b is arranged on the front side of the insertion portion 3, and is arranged between the base plate 2 and the upper surface of the frame 4 in the vertical direction.

FIG. 11 is an explanatory diagram illustrating a method of removing the tape 60 attached to the metal strip 50. A non-adhesive portion 61 is formed at the center of the back surface of the rectangular tape 60. The non-adhesive portion 61 extends in the longitudinal direction of the tape 60. Adhesive portions 62 are formed on both sides of the non-adhesive portion 61 on the back surface of the tape 60 in a direction intersecting the longitudinal direction. The tape 60 connects the end portion 51a of the outermost peripheral portion 51 of the wound metal strip 50 with the inner portion of the metal strip 50 located inside the end portion 51a. A step 53 is formed at the boundary between the end portion 51a of the outermost peripheral portion 51 and the inner portion, and the tape 60 covers the step 53. The non-adhesive portion 61 and the adhesive portion 62 extend along the circumferential direction of the metal band 50, one end of the adhesive portion 62 adheres to the outermost peripheral portion 51, and the other end thereof adheres to the inner portion.

As shown in FIG. 3D, when the tape 60 is removed from the metal strip 50, the tape remover 1 is brought closer to the tape 60 in a state where the metal strip 50 is rotated. At this time, the tape remover 1 is placed on the outermost peripheral portion of the metal band 50 so that the base plate 2 faces the outer peripheral surface of the metal band 50 and the curved portions 5a and 6a project outward in the radial direction of the metal band 50. Place it at 51. Then, as shown in FIG. 11, the insertion portion 3 of the tape remover 1 is inserted between the non-adhesive portion 61 of the tape 60 and the outermost peripheral portion 51 of the metal band 50. Since the metal strip 50 is rotating, the insertion portion 3 and the metal strip 50 are relatively moving. The insertion portion 3 is inserted between the tape 60 and the metal strip 50, the adhesive portion 62 of the tape 60 is peeled off from the metal strip 50, and the tape 60 is taken into the opening 1a. The captured tape 60 moves onto the groove 2c and is housed inside the tape remover 1. Then, the tape remover 1 containing the tape 60 is separated from the metal band 50. The tape 60 housed in the tape remover 1 is removed from the tape remover 1 through the second opening 1b. The work of removing the tape 60 from the tape remover 1 may be performed by the operator's hand 20 or by the suction device 22. The tape remover 1 may be approached or separated from the metal strip 50 by the operator's hand 20 or by the arm 21 of the machine.

In the tape removing method and the tape removing tool 1 according to the embodiment, the inserting portion 3 of the tape removing tool 1 is inserted into the gap between the non-adhesive portion 61 of the tape 60 and the metal band 50, and the tape 60 is metalized in a short time. It can be peeled off from the band 50.

Further, the peeled tape 60 is pressed by the pressing portion 9 and fastened in the inner space of the tape removing tool 1. Therefore, the peeled tape 60 can be recovered without being released to the outside.

Further, since the peeled tape 60 is arranged on the groove 2c, the contact area between the adhesive portion 62 and the base plate 2 becomes smaller than when the groove 2c is not provided, and the tape 60 can be easily removed from the tape remover 1. Become.

Further, the peeled tape 60 is taken in through the opening 1a and collected inside the tape remover 1. By providing the curved portions 5a and 6a, the collected tape 60 can move along the curved portions 5a and 6a and separate the tape 60 from the base plate 2. When the insertion portion 3 is inserted between the tape 60 and the metal strip 50, if only one of the two adhesive portions 62 of the tape 60 is peeled off and the other adhesive portion 62 is not peeled off, it is peeled off. The portion of the tape 60 is pulled upward along the curved portions 5a and 6a, that is, in a direction away from the metal band 50. As a result, the other adhesive portion 62 that has not been peeled off is also pulled away from the metal band 50, and smooth removal of the tape 60 is realized.

Further, the tape 60 taken in from the opening 1a can be taken out from the second opening 1b and easily discarded.

FIG. 12 is a schematic view showing a tape 65 having no non-adhesive portion 61 when removed from the metal band 50. When the tape 65 does not have the non-adhesive portion 61, the adhesive portion of the tape 65 is in close contact with the step 53. Therefore, as shown in FIG. 12, even if the insertion portion 3 of the tape remover 1 is inserted between the tape 65 and the metal strip 50, the tape 65 bends without being separated from the step 53, and the tape remover 1 is not separated from the step 53. The tape 65 cannot be removed by riding on the back surface of the bent tape 65. In the embodiment, the above problem can be solved by forming the non-adhesive portion 61 on the tape.

FIG. 13 is a schematic view showing an example of a manufacturing method for manufacturing a tape 60 having a non-adhesive portion 61. As shown in FIG. 13, a first tape 66a having no adhesiveness on both sides, a second tape 66b having adhesiveness on both sides, and a non-adhesive tape 67, for example, paper tape are prepared. The widths of the first and second tapes 66a and 66b are substantially the same. The width of the non-adhesive tape 67 is shorter than that of the first and second tapes 66a and 66b. First, the first and second tapes 66a and 66b are pulled out, and the second tape 66b is adhered to one side (back surface) of the first tape 66a to create an adhesive tape 66. Then, the non-adhesive tape 67 is pulled out and placed on the back surface side of the adhesive tape 66, and the non-adhesive tape 67 is adhered to the back surface of the adhesive tape 66 to produce the tape 60. The non-adhesive tape 67 is adhered to the central portion of the adhesive tape 66 in the width direction. Then, the tape 60 is cut to a predetermined size by the tape cutter 68.

The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The technical features described in each example can be combined with each other and the scope of the invention is intended to include all modifications within the scope of the claims and the scope of the claims. Will be done.

1 Tape remover 1a Opening 1b Second opening 2 Base plate 2c Groove 3 Insertion part 4 Frame 5 Left frame part 6 Right frame part 5a, 6a Curved part 7 Rear frame part 9 Holding part 50 Metal band 51 Outermost part 54 Inner part 60 Tape 61 Non-adhesive part 62 Adhesive part

Claims (10)

It is a tape removing method for removing the tape connecting the end portion of the outermost peripheral portion of the wound metal strip and the inner portion of the metal strip located inside the end portion.
An adhesive portion and a non-adhesive portion are formed on one surface of the tape, and the end portion and the inner portion are connected by the adhesive portion.
The wound metal band and the tape remover having an insertion portion are relatively moved in the circumferential direction of the metal band.
A tape removing method in which the insertion portion is inserted into the gap between the non-adhesive portion and the metal band, and the tape is peeled off from the metal band. The tape removing method according to claim 1, wherein the tape that has been peeled off is held by the holding portion of the tape removing tool. The tape removal according to claim 1 or 2, wherein the insertion portion is inserted into the gap between the non-adhesive portion and the metal band so that the peeled tape moves onto the groove formed next to the insertion portion. Method. The tape remover has an opening in which a curved portion is formed.
The tape remover is arranged on the outermost peripheral portion of the metal band so that the curved portion projects outward in the radial direction of the metal band.
The tape removing method according to any one of claims 1 to 3, wherein the peeled tape is taken into the opening. The tape remover has an opening and
The peeled tape is taken into the opening,
Separate the tape remover from the metal strip and remove it.
The tape removing method according to any one of claims 1 to 3, wherein the tape taken into the opening is removed from the tape removing tool. With the base plate
A tape that protrudes from the base plate in a direction parallel to the base plate and has an insertion portion for inserting into a gap between the wound metal band and the non-adhesive portion of the tape attached to the metal band. Remover. The tape removing tool according to claim 6, further comprising a holding portion that faces the base plate and presses the tape that has been peeled off from the metal band. The tape remover according to claim 6 or 7, wherein a groove is formed next to the insertion portion in the base plate. A frame arranged around the base plate is provided, and the frame is provided.
The frame is formed with an opening that penetrates in a direction parallel to the base plate and takes in the peeled tape.
The tape removing tool according to any one of claims 6 to 8, wherein a curved portion protruding in a direction away from the base plate is formed in the opening. The tape removing tool according to claim 9, wherein a facing plate facing the base plate is provided in the frame, and the facing plate is formed with a second opening penetrating in a direction perpendicular to the base plate.

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