JPH103831A - Longitudinal taping device and longitudinal taping method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent tape winding failures in the case of longitudinally lapping around a tape by forming a normal temperature adhesive layer between a wire and a tape. SOLUTION: At least two pairs of roller dies 32 and 33 are provided on the downstream side of a throttle die. An upstream roller die 32 is arranged so that a roller 34 constituting the roller die 32 sandwiches a tape alignment 4B. A tape 4 covering the periphery of an insulation wire 2 via an adhesive layer 4A can be adhered to the outer circumference face of the insulation wire 2 without forming wrinkle folding by pressurizing the tape in the radial direction of the insulation wire 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical taping apparatus and a vertical taping method, and more particularly, to copying,
The present invention relates to a vertical taping apparatus and a vertical taping method for a shielded insulated wire used for wiring of an electronic device such as a facsimile or an automobile.

[0002]

2. Description of the Related Art In general, when a signal transmitted among control cables is weak, noise may be generated due to an induction failure from another insulated wire or the like, and the control target may malfunction. For this reason, the control cable requires a shielded cable that is shielded to prevent induction failure from other insulated wires. In order to manufacture this shielded cable, a tape is laid along the longitudinal direction of the insulated wire, and the tape is rolled in the width direction to cover the outer periphery of the wire (hereinafter, this will be referred to as "vertical attachment").
(For example, see Japanese Utility Model Laid-Open No. 2-57517).

FIG. 6 shows a conventional vertical taping device 100.
It is a perspective view which shows schematic structure of. As shown in FIG.
The tape 110 drawn out from 20 is extended along the outer circumference of the insulated wire 140 fed in a straight line along the longitudinal direction, and the tape 110 is preformed into a cylindrical shape using the tapered tube 130, thereby forming the tape 110 in the circumferential direction. Rolled into
Further, the tape 110 is formed using the forming die 150.
Are fixed to the insulated wire 140 by narrowing in the circumferential direction. The conventional forming dies 150 narrow the tape 120 by slidingly contacting the tape 120.

[0004]

On the other hand, in recent years, it has been required to form a room temperature adhesive layer between the tape and the insulated wire, and to adhere the tape with the room temperature adhesive layer. In the case where such a room temperature adhesive layer is formed and the tape is longitudinally attached, the conventional vertically attached taping apparatus 100 cannot be used. This problem will be described with reference to FIG. FIG. 7 is a schematic cross-sectional view of the insulated wire 140 when the tape 110 is vertically attached to the insulated wire 140 by the conventional vertically attached taping device 100.
(B) shows the case where the conventional die 150 is used, and (B) shows the case where the taper tube 130 alone is used for vertical attachment.

[0005] As shown in FIG.
When the normal temperature-applied taping device 100 is used as it is when the tape 110 is vertically attached by forming the room-temperature adhesive layer 160 between the tape 110 and the tape 110, the tape 110 is already attached by the room-temperature adhesive layer 160 Since the tape 110 is narrowed in the circumferential direction, there is a problem that wrinkles 111 and folds 112 are formed in the tape 110 due to the adhesive force of the normal temperature adhesive layer 160.

On the other hand, as shown in FIG. 7 (B), when the forming die 150 is omitted from the apparatus 100 of FIG. 6 and only the taper tube 130 for preforming the tape 110 is used, the tape 110 is insulated. The tape 140 cannot be sufficiently tightened, and a gap 113 is formed between them, and a seam 114 becomes small. In order to prevent such peeling of the tape 110, it is conceivable to reduce the aperture diameter of the taper tube 130 described with reference to FIG. 6, but the taper tube 130 also comes into sliding contact with the tape 110 to round the tape 110. As a result, the tape 110 is elongated by reducing the drawing diameter, and as a result, the room-temperature adhesive layer becomes uneven and the adhesive strength is weakened. Cannot be solved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when a normal temperature adhesive layer is formed between an electric wire and a tape and the tape is vertically attached, it is possible to reliably prevent a winding failure of the tape. An object of the present invention is to provide a vertically attached taping device and a vertically attached taping method.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an insulated wire fed in a straight line direction through a room-temperature adhesive layer through a longitudinal direction of the insulated wire. A tape arranged along the drawing die for forming a seam and rounding around the insulated wire, and a drawing die disposed downstream of the drawing die, and around an axis orthogonal to each other with respect to a plane orthogonal to the straight line direction. And at least two sets of roller dies that rotate, wherein the set of the roller dies on the upstream side in the insulated wire feeding direction is arranged so that the rollers constituting the roller dies sandwich the seam of the tape. This is a vertical taping device.

[0009] In the invention including this specific matter, the tape rounded by the drawing die covers the periphery of the insulated wire via the adhesive layer. Here, the adhesive layer may be one formed on one surface of the tape,
It may be formed in advance on the outer periphery of the insulated wire by a method such as coating or dipping. Then, the tape covering the insulated wire is firmly adhered to the peripheral surface of the insulated wire by being pressed through at least two sets of roller dies.
Here, since roller dies are employed as a means for pressing the tape against the insulated wire, the rollers constituting each roller die come into rolling contact with the tape, so that the tape is pressed in the radial direction of the insulated wire. Becomes possible. Furthermore, since the rollers constituting the roller dies are arranged so as to sandwich the seam of the tape, the tape rolled on the insulated wire is applied so that the seam is closed by the roller dies forming the upstream set. Will be pressed.

According to a second aspect of the present invention, in the vertical taping device according to the first aspect, the rollers constituting the roller die have a plurality of circumferential portions having different widths corresponding to insulated wires having different thicknesses. A groove is formed.
In the invention including this specific matter, it is possible to vertically attach the tape corresponding to a plurality of insulated wires by changing the circumferential groove for inserting the insulated wires.

According to a third aspect of the present invention, there is provided a vertical taping method for longitudinally attaching a tape by forming a room temperature adhesive layer between the insulated wire and the tape. A coating step of coating the outer periphery of the insulated wire through an adhesive layer, and a step of pressing the coated tape by at least two sets of roller dies that are in rolling contact with the outer peripheral surface of the insulated surface with the mold clamped. A vertical taping method characterized by including:

[0012] In the invention including this specific matter, the tape covers the periphery of the insulated wire via the adhesive layer. Here, the adhesive layer may be formed on one surface of the tape as in claim 1, or may be formed on the outer periphery of the insulated wire in advance by a method such as coating or dipping. There may be. This tape is pressed in the radial direction of the insulated wire by a roller die, and is adhered to the outer peripheral surface of the insulated wire.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A preferred embodiment of the present invention will be described. FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention,
FIG. 2 is a perspective view showing a main part in the embodiment of FIG.

As shown in FIG. 1, in the illustrated embodiment, an insulated wire 2 fed from a supply reel 1 is fed in a straight line L direction by a plurality of feed rollers 3, and is the gist of the present invention. After passing through the vertically attached taping device 10, it is cut by a cutting and pressing machine (not shown) and subjected to a terminal treatment. On the other hand, the tape 4 is also fed out from the roll 7 and fed to the vertically attached taping device 10, and is attached to the outer periphery of the insulated wire 2 by the vertically attached tape device 10. The tape 4 is an aluminum laminate sheath in which a thin film layer made of polyethylene is formed on both sides or one side of a soft aluminum tape having a thickness of about 0.2 mm, and an adhesive layer 4A is formed on one surface thereof. . The tape 4 is made of the insulated wire 2 by the adhesive layer 4A.
To be stuck on the outer periphery. The technology for feeding the insulated wire 2 along the linear direction and the cutting and crimping machine are described in detail in, for example, Japanese Patent Application Laid-Open No. 6-5121 previously proposed by the present applicant. Omitted.

As shown in FIG. 2, the vertical taping device 10 in the illustrated embodiment comprises a base 11 and a base 1.
1 and a roller die unit 30 disposed downstream of the throttle unit 20 in the wire feeding direction. The aperture unit 20 integrally includes a pillar 21 implanted in the base 11 and a mounting ring 22 fixed to an upper end of the pillar 21. A tapered tube 23 is mounted on the mounting ring 22, and a set screw 24 is provided. By this, the tape 4 can be rolled around the outer periphery of the insulated wire 2 through which the tapered tube 23 is inserted, and a part of the tape 4 can be covered in a superimposed state. Thus, the insulated wire 2 is fed to the roller die unit 30 in a state where the seam 4B is formed on the tape 4.

The roller dice unit 30 includes a holder 31 and two sets supported by the holder 31 and rotated about axes X and Y orthogonal to each other with respect to a plane orthogonal to the linear direction D to which the insulated wire 2 is fed. The roller dies 32 and 33 are provided. The holder 31 includes a pair of substantially L-shaped leg plates 31A fixed to the base 11 with bolts 35.
And a top plate 31B that is continuous with the upper part of the leg plate 31A. Leg plate 31A
And the top plate 31B are formed in a U-shape having concave portions 31C and 31D, respectively. Recess 31D of top plate 31B
Has a first stay 31E fitted therein,
A second stay 31F facing the first stay 31E is fixed to the leg plate 31A. Then, the first vertical shaft 36 is supported between the two stays 31F, and the first
Are mounted, and a second set of roller dies 33 is mounted by a pair of horizontal shafts 37 supported between both leg plates 31A, 31A.

Each of the roller dies 32 and 33 is constituted by a pair of two pressure rollers 34. Each pressure roller 34 is formed with an anti-cylindrical circumferential groove 34A corresponding to the outer diameter of the insulated wire 2 to be inserted. The narrow space through which the insulated wire 2 is inserted is defined by making the grooves 34A face each other. The aperture space is slightly smaller than the aperture diameter of the above-described tapered tube 23 according to the type and specifications of the tape 4 and the insulated wire 2 attached vertically. The circumferential groove 34A of the pressure roller 34 employed in the roller die 33 on the downstream side is
2 is slightly narrower than the circumferential groove 34A of the pressure roller 34 employed in the pressure roller 34, whereby the surface of the tape 4 is hardly wrinkled.

As described above, each roller die 32, 33
The vertical axis 36 and the horizontal axis 37 that support are both rotatably supported. Therefore, each pressure roller 34 is
When the insulated wire 2 is fed, the insulated wire 2 comes into contact with and follows the tape 4 coated around the insulated wire 2, and presses the tape 4 in the radial direction of the insulated wire 2 while rollingly contacting the tape 4. become.

Further, the tape 4 is rolled around a horizontal axis.
(See FIG. 1), the upstream roller dies 32 are supported by the respective vertical shafts 36, so that the pressure rollers 34 constituting the upstream roller dies 32 are taped. 4 are arranged so as to sandwich the joint 4B. According to the above configuration, the tape 4 rounded by the tapered tube 23 as a drawing die covers the periphery of the insulated wire 2 via the adhesive layer 4A.

Then, a tape 4 covering the insulated wire 2
Is firmly adhered to the peripheral surface of the insulated wire 2 by being pressed through at least two sets of roller dies 32, 33. Here, since the roller dies 32 and 33 are employed as means for pressing the tape 4 to the insulated wire 2, the pressure rollers 34 forming the roller dies 32 and 33 come into rolling contact with the tape 4. Then, the tape 4 can be pressed in the radial direction of the insulated wire 2. Further, since the pressure rollers 34 constituting the roller dies 32 and 33 are arranged so as to sandwich the joint 4B of the tape 4, the tape 4 rolled on the insulated wire 2 forms an upstream set. Pressure is applied by the roller die 32 so as to close the seam.

As described above, according to the above-described embodiment, the tape 4 that covers the periphery of the insulated wire 2 via the adhesive layer 4A is pressed in the radial direction of the insulated wire 2 so that the wrinkled fold is formed. It can be stuck to the outer peripheral surface of the insulated wire 2 without producing the same, which has a remarkable effect that a beautiful product can be finished. Note that the above-described embodiment is merely an example of a preferred specific example of the present invention,
The present invention is not limited to the above embodiment.

For example, the adhesive layer 4A may be formed on one surface of the tape 4 or may be formed on the outer periphery of the insulated wire 2 by a method such as coating or dipping in advance. Is also good. The number of roller dies may be at least two. FIG. 3 is a perspective view schematically showing another embodiment of the present invention. For example, as shown in FIG.
By setting two roller dice units 30 of FIG. 2 and gradually reducing the diameter of the downstream throttle, the tape 4 can be adhered more reliably.

Alternatively, the roller die shown in FIG. 4 can be used. FIG. 4 is a front view showing another example of a roller die applicable to the present invention. As shown in the figure, the pressure roller 41 employed in the roller die 40 may be provided with a plurality of circumferential grooves 41A to 41F having different widths. In this case, the same pressure roller 41 can be used to vertically attach the tape 4 to various types of insulated wires 2 so as to have versatility.

When the roller die 40 shown in FIG. 4 is employed, the configuration shown in FIG. 5 can be employed.
FIG. 5 is a schematic front view schematically showing an example of use of the roller dice 40 of FIG. As shown in the drawing, a frame 43 supporting the upstream set of roller dies 40 is formed of a separate member from a frame 45 supporting the downstream set of roller dies 44, and both are driven by a microcomputer (not shown). It is also possible to automatically change the wire diameter by controlling and displacing the positioning mechanism.

It goes without saying that various design changes are possible within the scope of the claims of the present invention.

[0026]

As described above, according to the present invention,
A tape that covers the periphery of the insulated wire via the adhesive layer is pressed in the radial direction of the insulated wire, so that it can be stuck to the outer peripheral surface of the insulated wire without wrinkles and breaks. It has a remarkable effect that it can be finished.

In particular, according to the second aspect of the present invention, by changing the circumferential groove for inserting the insulated wire, the tape can be vertically attached to a plurality of insulated wires. There is an advantage that versatility can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part in the embodiment of FIG. 1;

FIG. 3 is a perspective view schematically showing another embodiment of the present invention.

FIG. 4 is a front view showing another example of a roller die applicable to the present invention.

FIG. 5 is a schematic front view schematically showing a use example of the roller dice of FIG. 4;

FIG. 6 is a perspective view showing a schematic configuration of a conventional vertically attached taping device.

FIG. 7 is a schematic cross-sectional view of an insulated wire in which a tape is vertically attached to an insulated wire by a conventional vertically-attached taping device, where (A) is a conventional die and (B) is a vertical taper tube only. This is the case with the attachment.

[Explanation of symbols]

 Reference Signs List 2 insulated wire 4 tape 10 longitudinal taping device 20 drawing unit 23 taper tube (drawing die) 30 roller die unit 32 roller die 33 roller die 34 pressure roller 40 roller die 41 pressure roller 44 roller die

Claims (3)

[Claims] An insulated wire fed along a straight line direction is taped along a length of the insulated wire via a room temperature adhesive layer to form a seam around the insulated wire. A drawing die to be rolled; and at least two sets of roller dies disposed downstream of the drawing die and rotating about axes orthogonal to each other with respect to a plane perpendicular to the straight line direction. The vertical taping device, wherein a pair of rollers on the upstream side in the feeding direction is arranged so that rollers forming the roller die sandwich a joint of the tape. 2. A vertical taping device according to claim 1, wherein a plurality of circumferential grooves having different widths are formed on the rollers constituting the roller dies corresponding to insulated wires having different thicknesses. is there. 3. A tape taping method for forming a room-temperature adhesive layer between an insulated wire and a tape and vertically applying the tape, wherein the tape along the longitudinal direction of the insulated wire is interposed via the adhesive layer. And coating the tape with at least two sets of roller dies that make rolling contact with the coated tape in a state where the outer peripheral surface of the tape is clamped. Vertical taping method.