JP3798841B2 - Manufacturing method of flat wire - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method of manufacturing a flat electric wire used for internal wiring of an electronic device.
[0002]
[Prior art]
In recent years, as shown in FIG. 7, internal wiring of an electronic device includes a plurality of conductors 101 arranged in parallel, two insulating tapes 103 and 105 that laminate the conductors 101 from both sides, and exposed portions of the conductors 101. That is, a flat electric wire having a reinforcing plate 107 bonded to a portion to be a terminal is used.
[0003]
An example of the manufacturing method of such a flat electric wire is shown in FIG. As shown in FIG. 8, when manufacturing a flat electric wire, first, insulating tapes 103 and 105 having windows 103a and 105a provided at predetermined intervals are placed so that the windows 103a and 105a overlap the upper and lower surfaces of the conductor 101. The conductor 101 and the insulating tapes 103 and 105 are fed into the roll 201 by a feed roll (not shown).
[0004]
In this roll 201, an electric current is passed through the conductor 101 to cause the conductor 101 itself to generate heat, and this heat is used to laminate the conductor 101 with the insulating tapes 103 and 105.
[0005]
The conductor 101 and the insulating tapes 103 and 105 are supplied to the reinforcing plate bonding device 205 via the feed roll 203. In the reinforcing plate bonding apparatus 205, the reinforcing plate 107 slightly larger than the windows 103a and 105a is bonded onto the window 105a of the insulating tape 105 by pressing using an adhesive or heat pressing.
[0006]
And after cutting off the ear | edge part of the insulating tapes 103 and 105 with the ear picking apparatus which is not shown in figure, it cut | disconnects with the cutter 209 along the cutting line of a perpendicular direction with a longitudinal direction in the window 105a center part. In this way, a flat electric wire as shown in FIG. 7 is manufactured.
[0007]
[Problems to be solved by the invention]
However, in the conventional manufacturing method of flat electric wires, the insulating tapes 103 and 105 are easily displaced in the longitudinal direction as shown in FIG. There is a problem that it is difficult to match the window 105a accurately.
[0008]
This invention is made | formed in view of the said subject, and provides the manufacturing method of the flat electric wire which can manufacture a flat electric wire without being influenced by the shift | offset | difference of the longitudinal direction of the insulating tape adhere | attached on both sides of a conductor. For the purpose.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention adheres an insulating tape with a window having a window at a predetermined interval to one surface of a plurality of conductors arranged in parallel, and the window on the other surface of the conductor. An insulating tape adhering step for adhering an insulating tape with a slit provided with a slit in a direction perpendicular to the longitudinal direction of the conductor at a position corresponding to the central portion of the conductor, and a reinforcing plate corresponding to the window of the insulating tape with the slit The present invention includes a step of adhering to a position, and a cutting step of cutting the insulating tape with the conductor, the insulating tape with window, and the reinforcing plate bonded along the slit.
[0012]
In the method for producing a flat wire according to the present invention, an insulating tape with a window opened at predetermined intervals is bonded to one surface of a plurality of conductors arranged in parallel, and the other surface of the conductor is bonded to the other surface of the conductor. The insulating tape with a slit provided with a slit in the direction perpendicular to the longitudinal direction of the conductor is bonded at a position corresponding to the central portion of the window, and then a reinforcing plate is positioned corresponding to the window of the insulating tape with slit Adhere to. Then, the said conductor, the said insulating tape with a window, and the said insulating tape are cut | disconnected along the said slit. For this reason, if the said window is previously opened large, it will become possible to manufacture a flat electric wire, without being influenced by the shift | offset | difference of the longitudinal direction of the insulating tape adhere | attached on both sides of a conductor.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the flat electric wire manufacturing method according to the present invention, in particular, when laminating a conductor with two insulating tapes, the conductor 1 shown in FIG. A flat electric wire composed of the insulating tape 5 and the reinforcing plate 7 can be manufactured.
[0014]
FIG. 2 is a view showing a first embodiment of a method for manufacturing a flat wire according to the present invention. In addition, in the figure, the same thing as what was shown in FIG. 8 was attached | subjected the same symbol, and detailed description was abbreviate | omitted.
[0015]
As shown in FIG. 2, when a flat electric wire is manufactured using the flat electric wire manufacturing method of the first embodiment, first, the insulating tape 3 with a window having a rectangular window 3 a at predetermined intervals is attached to the conductor 1. In addition to being disposed on the lower surface, the insulating tape 5A is disposed on the upper surface of the conductor 1, and the conductor 1, the insulating tape 3 with window, and the insulating tape 5A are fed into the roll 201 by a feed roll (not shown).
[0016]
In addition, it is desirable to use a copper wire etc. as the conductor 1, and it is desirable to use polyethylene, vinyl chloride, polyester etc. as the insulating tape 3 with a window, and the insulating tape 5A. The window 3a is such that when the conductor 1, the insulating tape with window 3 and the insulating tape 5A are cut to complete a flat electric wire, the exposed portion of the conductor 1 (portion serving as a terminal) has a predetermined length. Magnitude.
[0017]
In the roll 201, a current is passed through the conductor 1, the conductor 1 itself is heated, and the conductor 1 is laminated with the insulating tape 3 with window and the insulating tape 5A using this heat (insulating tape bonding step). In addition, you may make it laminate the conductor 1 with the insulating tape 3 with a window, and the insulating tape 5A using an adhesive agent.
[0018]
The conductor 1, the insulating tape with window 3 and the insulating tape 5A are supplied to the reinforcing plate bonding apparatus 205 via the feed roll 203. In the reinforcing plate bonding apparatus 205, the reinforcing plate 7 slightly larger than the window 3a is bonded onto the insulating tape 5A (see FIG. 3 (a)) in accordance with the position of the window 3a by pressing using an adhesive or heat pressing. (Reinforcing plate bonding process).
[0019]
For example, when a transparent tape is used for the insulating tape 5A, the window 3a is detected by a sensor (not shown) provided on the upper surface side at a predetermined distance upstream from the reinforcing plate bonding apparatus 205, and a predetermined distance downstream from this detection position. When the reinforcing plate 7 is positioned and bonded, and the insulating tape 5A is opaque, the window 3a is detected by a sensor (not shown) provided on the lower surface side upstream of the reinforcing plate bonding device 205 by a predetermined distance. The reinforcing plate 7 is positioned and bonded downstream from this detection position by a predetermined distance.
[0020]
And after cutting off the ear | edge part of the insulating tape 3 with a window and the insulating tape 5A with the ear removal apparatus which is not shown in figure, as shown in FIG. 2, the cutting line ((FIG. 3 (b) is cut by the cutter 209 (cutting step).
[0021]
For example, when a transparent tape is used for the insulating tape 5A, the window 3a is detected by a sensor (not shown) provided on the upper surface side at a predetermined distance upstream from the cutter 209, and is cut at a predetermined distance downstream from this detection position. When an opaque tape 5A is used, the window 3a is detected by a sensor (not shown) provided on the lower surface side upstream from the cutter 209 by a predetermined distance, and the window 3a is cut downstream by a predetermined distance from this detection position. Moreover, you may make it cut | disconnect by calculating | requiring a cutting position based on the feed amount of the conductor 1, the insulating tape 3 with a window, and the insulating tape 5A, without detecting the window 3a.
[0022]
Thus, the flat electric wire shown in FIG. 1 is manufactured by the flat electric wire manufacturing method of the first embodiment.
[0023]
Here, the cross section of the cut portion of the flat electric wire is shown in FIG. As shown in FIG.3 (c), since the window is not provided in the insulating tape 5A, even if the insulating tape 3 with a window and the insulating tape 5A shift | deviate to a longitudinal direction, a change does not arise in the shape of a finished product.
[0024]
Thus, in the manufacturing method of the flat electric wire of the first embodiment, the insulating tape 3 with a window is bonded to the lower surface of the conductor 1 and the insulating tape 5A without a window is bonded to the upper surface of the conductor 1, A flat electric wire can be manufactured without being affected by the longitudinal displacement between the insulating tape 3 and the insulating tape 5A. Moreover, since there is no window on the upper surface of the conductor 1, the strength against bending is improved.
[0025]
FIG. 4 is a diagram showing a second embodiment of a method for manufacturing a flat wire according to the present invention. As shown in FIG. 4, in the flat wire manufacturing method of the second embodiment, the insulating tape 5B used in the flat wire manufacturing method of the first embodiment shown in FIG. 2 corresponds to the central portion of the window 3a. By providing the slit 5a in the direction perpendicular to the longitudinal direction at the position, the width of each conductor 1 and the width of the entire conductor 1 can be easily measured. In addition, in the figure, the same thing as what was shown in FIG. 2 was attached | subjected the same symbol, and detailed description was abbreviate | omitted.
[0026]
As shown in FIG. 4, when a flat electric wire is manufactured using the flat electric wire manufacturing method of the second embodiment, first, an insulating tape 3 with a window having a window 3 a at predetermined intervals is applied to the lower surface of the conductor 1. An insulating tape with slit 5B provided with a slit 5a in a direction perpendicular to the longitudinal direction at a position corresponding to the central portion of the window 3a is arranged on the upper surface of the conductor 1, and the conductor 1, the insulating tape with window 3 and the slit are provided. The insulating tape 5B is fed into the roll 201 by a feed roll (not shown).
[0027]
The window 3a is sized such that when the conductor 1, the insulating tape 3 with window, and the insulating tape 5B with slit are cut, the exposed portion of the conductor 1 (portion serving as a terminal) is slightly longer than a predetermined length. . In addition, as the insulating tape 5B with slits, it is desirable to use polyethylene, vinyl chloride, polyester, or the like, like the insulating tape 5 of the first embodiment. In addition, the slit 5a can be confirmed from the upper surface side of this portion, and is narrower than a cut portion when the conductor 1, the insulating tape with window 3, and the insulating tape with slit are cut.
[0028]
In the roll 201, an electric current is passed through the conductor 1, the conductor 1 itself is heated, and the conductor 1 is laminated with the insulating tape 3 with a window and the insulating tape 5B with a slit using this heat (insulating tape bonding step). In addition, you may make it laminate the conductor 1 with the insulating tape 3 with a window, and the insulating tape 5B with a slit using an adhesive agent. In FIG. 4, the conductor 1 is exposed from the slit 5 a on the downstream side from the roll 201.
[0029]
The conductor 1, the insulating tape with window 3 and the insulating tape with slit 5B are supplied to the reinforcing plate bonding apparatus 205 via the feed roll 203. In the reinforcing plate bonding apparatus 205, the reinforcing plate 7 that is slightly larger than the window 3a is placed on the insulating tape 5B with slits in accordance with the position of the window 3a by pressing using an adhesive or heat pressing (see FIG. 5A). (Reinforcing plate bonding process).
[0030]
When the reinforcing plate 7 is bonded in correspondence with the position of the window 3a, for example, the slit 5a is detected by a sensor (not shown) provided on the upper surface side at a predetermined distance upstream from the reinforcing plate bonding apparatus 205, and this detection position is detected. The downstream side of the predetermined distance from this is the bonding position of the reinforcing plate 7.
[0031]
And the ear | edge part of the insulating tape 3 with a window and the insulating tape 5B with a slit is cut off with the ear removal apparatus which is not shown in figure. Next, as shown in FIG. 6 (a), in order to measure the tape width A, the total pitch B of the conductors, each conductor width C, and the width D of the ear portion, a sensor provided downstream of the ear removing device, for example, Using the line sensor, the brightness on the scan line in the direction perpendicular to the longitudinal direction of the conducting wire 1 is measured at the position of the slit 5a.
[0032]
In this case, as shown in FIG. 6B, the width of the first point and the last point darker than a predetermined threshold is the tape width A, and the center of the first part darker than the threshold with a predetermined width. The width from the central point of the last portion that becomes darker than the threshold at a predetermined width from the point is defined as the total pitch B of the conductor, and the width of the portion that is darker than the threshold at the predetermined width is defined as the conductor width C. The width of the ear portion is the width of the first point that becomes darker than the threshold at a predetermined width and the width of the last portion that becomes darker than the threshold at the predetermined width and the last point that becomes darker than the threshold at a predetermined width. Configure to measure as D. When the measurement result does not fall within the predetermined value, the flat wire is determined to be defective.
[0033]
Next, as shown in FIG. 4, at the center of the window 3a, the cutter 209 cuts along a cutting line perpendicular to the longitudinal direction. At this time, as shown in FIG. 5B, the width of the cut portion cut by the cutter 209 is made slightly wider than the width of the slit 5a (cutting step).
[0034]
FIG. 5C shows a cross section of a cut portion of the conductor 1, the insulating tape 3 with window, and the insulating tape 5B with slit after this cutting step. As shown in FIG.5 (c), the conductor 1, the insulating tape 3 with a window, and the insulating tape 5B with a slit are cut | disconnected in the part of the slit 5a. At this time, since the conductor exposed portion of the flat electric wire is slightly longer than the predetermined length, adjustment is performed by cutting the conductor exposed portion of the flat electric wire to a predetermined length.
[0035]
In this way, the flat electric wire shown in FIG. 1 is manufactured by the flat electric wire manufacturing method of the second embodiment.
[0036]
In the manufacturing method of the flat electric wire according to the second embodiment, the conductor exposed portion of the flat electric wire is adjusted to a predetermined length even if the positions of the insulating tape 3 with window and the insulating tape 5B with slit are shifted. There is no change in the shape.
[0037]
Thus, in the flat wire manufacturing method of the second embodiment, the insulating tape 3 with a window is bonded to the lower surface of the conductor 1, the insulating tape 5B with a slit is bonded to the upper surface of the conductor 1, and the conductor is formed at the slit 5a. 1 and the insulating tape 3 with window and the insulating tape 5B with slit are cut, so that if the window 3a is opened in advance, the longitudinal displacement of the insulating tape 3 with window and the insulating tape 5B with slit is caused. A flat electric wire can be manufactured without being affected. Moreover, since there is no window on the upper surface of the conductor 1, the strength against bending is improved.
[0038]
Furthermore, since the slit 5a is provided, the tape width A, the total pitch B of the conductors, the conductor widths C, the width D of the ear portion, etc. as shown in FIG. 6A can be easily measured. In the flat wire manufacturing method according to the first embodiment and the flat wire manufacturing method according to the second embodiment, the case where the reinforcing plate 7 is bonded only to one surface has been described as an example. Without limitation, the present invention can also be applied to the case where the reinforcing plate 7 is alternately bonded to one surface and the other surface.
[0039]
Moreover, in the manufacturing method of the flat electric wire of 1st Embodiment, and the manufacturing method of the flat electric wire of 2nd Embodiment, after cutting off an ear | edge part with an ear picking apparatus, it cut | disconnects at the center part of the window 3a at right angles with a longitudinal direction The cutter 209 is cut along the line. However, after the cutter 209 is cut, the ear portion may be cut by the ear removing device.
[0041]
【The invention's effect】
As described above, in the present invention, an insulating tape with a window is bonded to one surface of a conductor, an insulating tape with a slit is bonded to the other surface of the conductor, and the conductor is formed at a slit portion of the insulating tape with a slit. Since the insulating tape with window and the insulating tape with slit are cut, it is possible to manufacture a flat electric wire without being affected by the displacement in the longitudinal direction of the insulating tape bonded to both sides of the conductor. Become.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a flat wire manufactured by a method for manufacturing a flat wire according to the present invention.
FIG. 2 is a view showing a first embodiment of a method of manufacturing a flat wire according to the present invention.
3A is a cross-sectional view of a conductor, an insulating tape with window, and an insulating tape after the reinforcing plate is bonded in the reinforcing plate bonding step in the method of manufacturing the flat electric wire shown in FIG. (B) which shows the cross section of the cutting | disconnection part of an insulating tape with an insulating tape and an insulating tape, and (c) which shows the cross section after cut | disconnecting a conductor, an insulating tape with a window, and an insulating tape by a cutting process.
FIG. 4 is a view showing a second embodiment of a method for manufacturing a flat wire according to the present invention.
5A is a cross-sectional view of the conductor, the insulating tape with window, and the insulating tape with slit after the reinforcing plate is bonded by the reinforcing plate bonding step in the method of manufacturing the flat wire shown in FIG. It is a figure (b) which shows a section of a cutting part of an insulating tape with a window and an insulating tape with a slit, and a figure (c) which shows a section after cutting a conductor, an insulating tape with a window, and an insulating tape by a cutting process.
FIG. 6 is a diagram for explaining a method of measuring tape width A, conductor pitch B, conductor width C, and edge width D;
FIG. 7 is a perspective view showing a flat electric wire manufactured by a conventional method for manufacturing a flat electric wire.
FIG. 8 is a view showing a conventional manufacturing method of a flat electric wire.
FIG. 9 is a cross-sectional view in the case where the insulating edge tapes 103 and 105 are manufactured by being shifted in the longitudinal direction by a conventional method of manufacturing a flat electric wire.
[Explanation of symbols]
1 Conductor 3 Insulating tape with window 5 Insulating tape 7 Reinforcing plate

Claims (1)

  Adhering a window insulating tape with a window at predetermined intervals to one side of a plurality of conductors arranged in parallel, and on the other side of the conductor at a position corresponding to the central portion of the window, An insulating tape adhering step of adhering an insulating tape with slits provided with slits in a direction perpendicular to the longitudinal direction of the conductor, an adhering reinforcing plate at a position corresponding to the window of the insulating tape with slits, and the conductor A cutting step of cutting the insulating tape with window and the insulating tape to which the reinforcing plate is bonded along the slit.

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