JPH10231064A - Taping drawing pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the quality of a cable by stabilizing the direction of overlapping a longitudinally applied tape at the time of covering a cable to prevent wrinkling. SOLUTION: A taping drawing pipe 1 has a tape holding member 3 put in contact with one side end 7a of a tape 7 longitudinally applied to a cable 6 and arranged under the other side end 7b overlapped from above one side end during taping to specify the tape overlapping direction. At the end of the tape holding member 3 protruded into a hopper tape guide part 2, a curved contact face 3a is provided to guide one side end 7a of the tape 7. When a cable core 6, to which the longitudinally applied tape 7 is being faced, is pulled toward an arrow mark A, one side end 7a to be entered into the lower side is wound on the cable core 6 with the tape holding member 3 and the other side end 7b being gradually held along the hopper tape guide part 2 is surely wound to be overlapped on one side end 7a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a taping drawing pipe for automatically covering a tape around an outer periphery of a cable core constituting an optical fiber cable, for example, and more particularly, to a vertical taping pipe along the axial direction of the cable core. The present invention relates to a structure of a taping throttle pipe capable of stably winding a tape to be wound.

[0002]

2. Description of the Related Art In general, when covering a cable core such as an optical fiber cable with a tape for shielding vertically, the tape edges on both sides of the tape are overlapped to cover the cable core in a cylindrical shape. They must be overlapped with a step without being abutted.

[0005] As shown in FIG. 5, the basic configuration of a conventional vertical taping drawn pipe 10 for vertical vertical coating is a funnel-shaped tape introduction section 12 and a tape 17 based on the outer diameter of a cable core 16 to be taped. And a lead-out portion 15 from which the taped cable core 16 is drawn out.

[0004] The conventional vertical taping throttle pipe 1
In the case of 0, the tape is vertically attached by inserting a vertically attached tape (for example, a nonwoven fabric or the like) supplied from the same direction as the cable core 16 from the funnel-shaped tape introduction portion 12 along the cable core. ing.

At the time of taping of the longitudinally attached tape 17, a tape that is slightly wider than the outer circumference of the cable core 16, for example, about 5 mm wider than the outer length of the cable core 16, is used to securely enclose the cable core 16. Both sides are overlapped. The overlapping direction of the vertically attached tape 17 is set in a preparation stage of the taping process, and a constant overlapping direction is maintained during operation.

[0006]

However, in the above-described conventional vertical taping throttle pipe 10, it is not easy to define the direction in which the tapes are overlapped. Therefore, as shown in FIG. As compared with the case where the tape 17 overlaps normally, the overlapping direction of the vertically attached tape 17 is reversed as shown in FIG. 7, and there is a problem that the quality of the cable is impaired due to the occurrence of wrinkles and the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a taping drawn pipe capable of stabilizing the overlapping direction of the longitudinal tape and preventing wrinkles when coating the cable with the longitudinal tape so as to improve the quality of the cable. It is to propose.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide a tape taping method by inserting a cable taped on an outer peripheral surface and a tape vertically covering the outer peripheral surface of the cable into a cylindrical portion. In the taping throttle pipe performing, the tape is in contact with the tape side end of one side of both sides of the tape longitudinally attached to the cable,
At least one tape pressing member is provided at the end of the cylindrical portion so as to define a tape overlapping direction below the other tape side end overlapped from above the one tape side end during taping. A taping throttle pipe, which is provided so as to protrude into the tape introduction portion, and wherein a tip of the tape pressing member has a curved contact surface for guiding the one tape side end of the tape. Can be solved by

In the taping throttle pipe having the above structure, the tape is pulled in the axial direction of the cylindrical portion with the tape vertically attached to the lower side of the cable, so that one tape side end of the tape to enter the lower side of the cable is taped. It is guided by the contact surface at the tip of the holding member and is wound first on the cable.
Then, while the other tape side end of the tape is gradually narrowed along the funnel-shaped tape introduction portion, the tape is overlapped on one tape side end already wound on the cable without wrinkles or the like. And can be securely wound. That is, the tapes are superimposed so that one side end guided by the tape pressing member is always on the lower side, so that a stable winding direction can be secured, and the quality of the cable can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a taping throttle pipe according to the present invention will be described below in detail with reference to FIGS. FIG. 1 is a plan view showing an embodiment of the taping throttle pipe of the present invention, FIG. 2 is a plan view seen from the tape introduction side in FIG. 1, FIG. 3 is a plan view seen from the tape lead-out side in FIG. FIG. 4 is a perspective view showing a state where the cable core and the tape are introduced from the tape introduction side.

The vertical taping throttle pipe 1 according to the present embodiment is arranged such that when a vertical tape (for example, a nonwoven fabric) 7 is wound around a cable core 6 for an optical fiber cable indicated by an imaginary line, the vertical direction of the vertical tape is overlapped. Is regulated in one direction to obtain a stable tape winding structure.

The basic configuration of the vertically attached taping throttle pipe 1 is that the diameter of the funnel-shaped tape introduction section 2 is larger than the outer diameter of the cable core 6 by the thickness of the tape 7 (in the present embodiment, the cable core diameter). And a lead-out section 5 from which the taped cable core 6 is drawn out.

The tape 7 which is vertically attached to the cable core 6 comes into contact with one tape side end 7a on one side of the tape 7 and is overlapped from above the tape side end 7a during taping. Below the end 7b, a tape pressing member 3 for defining a tape overlapping direction is provided.
The leading end of the tape pressing member 3 protrudes into the funnel-shaped tape introduction portion 2 and has an arc-shaped contact surface 3a that contacts one of the tape-side ends 7a and guides the tape-side end 7a. I have.

Further, in the longitudinal taping throttle pipe 1 of the present embodiment, the tape pressing member 3 is fixed to the opening edge of the tape introduction portion 2 of the longitudinal taping throttle pipe 1 by welding. For this reason, the tape pressing member 3 does not shift during taping.

Next, a description will be given of the operation at the time of taping of the vertically attached taping throttle pipe of the present embodiment. As shown in FIGS. 2 and 4, when the tape 7 is pulled along the cable core 6 in the direction of arrow A, the tape-side end 7a on the lower side becomes the tip of the tape pressing member 3. Is guided to the cable core 6 side while being in contact with the arc-shaped contact surface 3a of FIG. At this time,
The tape-side end 7b on the other side of the longitudinally attached tape 7 is gradually sandwiched along the funnel-shaped tape introduction portion 2, and the one-side tape side already wound on the cable core 6 without wrinkles or the like. It is wound so as to overlap on the end 7a.

Thereafter, while passing through the inside of the cylindrical portion 4, the wound state, in particular, the overlapping portion of the other tape side end 7b is adjusted. Then, as shown in FIG. 3, it is pulled out from the lead-out portion 5 opened at the tip.

When the cable core 6 is rotating in the direction of arrow B as shown in FIG. 4, the vertically attached tape 1 is rotated in the same direction as the cable core 6 so that the vertically attached tape 7 is rotated. Can be more stably wound.

As described above, according to the vertical taping throttle pipe of the present embodiment, the tape pressing member 3 having the arc-shaped contact surface 3a for defining the overlapping direction of the vertical tape.
Is provided. Accordingly, the tape 7 is vertically guided on the cable core 6 while being brought into contact with the tape-side end 7a on one side which enters the lower side of the both ends of the longitudinally attached tape 7 which is vertically attached to the cable core 6. After winding, the tape side end 7b on the other side can be reliably wound so as to overlap the tape side end 7a. Therefore, the vertical attachment tape 7 can be formed without wrinkles or the like.
Can be wound around the cable core 6, and the reversal of the overlapping portion of the vertically attached tape can be reliably prevented.

In addition, since the overlapping direction can be reliably defined without strictly positioning the position of the longitudinal attachment tape 7 with respect to the cable core 6, the operation of arranging the longitudinal attachment tape 7 is facilitated and the working efficiency is improved. Can be.

It is needless to say that the present invention is not limited to the vertical taping throttle pipe of the present embodiment described above, but can be applied to other embodiments. That is, although the tape pressing member 3 is fixed by welding, other fixing means may be used. For example, the tape pressing member 3 may be fixed by screwing, or an adjustable structure by screwing is also possible.

[0021]

As described above, in the vertically squeezed taping drawing pipe of the present invention, one side of the tape which is longitudinally slid against the cable is brought into contact with one end of the tape,
A funnel-shaped tape introduction in which at least one tape pressing member is provided at the end of the cylindrical portion so as to define the tape overlapping direction below the other tape side end which is overlapped from above one tape side end during taping. The tape pressing member has a curved contact surface that guides one end of the tape on the side of the tape.

Therefore, one tape side end of the tape to enter the lower side of the cable is guided by the contact surface of the tip of the tape pressing member and is wound first on the cable, and the other tape side end is along the tape introduction portion. While being gradually narrowed, it is securely wound so as to overlap on one tape side end already wound on the cable without wrinkles or the like. Therefore, a stable winding direction can be secured, and the quality of the cable can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a vertically attached taping throttle pipe of the present invention.

FIG. 2 is a plan view of the vertically attached taping throttle pipe in FIG. 1 as viewed from a tape introduction part side.

FIG. 3 is a plan view of the vertically attached taping throttle pipe in FIG. 1 as viewed from an outlet.

FIG. 4 is a partial perspective view of a main part showing an operation state of a vertically attached taping throttle pipe in FIG. 1;

FIG. 5 is a plan view of a conventional vertical taping throttle pipe.

FIG. 6 is a cross-sectional view showing a case where a tape is superposed on a cable core in a normal direction.

FIG. 7 is a cross-sectional view showing a case where the tape overlapping direction is reversed with respect to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Taper drawing pipe with vertical attachment 2 Tape introduction part 3 Tape holding member 3a Contact surface 4 Cylindrical part 5 Outgoing part 6 Cable core 7 Vertically attached tape 7a Tape end on one side 7b Tape end on the other side

Claims (1)

[Claims] 1. A taping drawing pipe for taping the cable by inserting a cable taped on an outer peripheral surface thereof and a tape vertically covering the outer peripheral surface of the cable into a cylindrical portion. One side of the two side edges of the vertically attached tape is brought into contact with one side of the tape, and the tape overlapping direction is defined below the other side of the tape which is overlapped from above the one side of the tape at the time of taping. At least one tape holding member is provided so as to protrude into a funnel-shaped tape introduction portion provided at the end of the cylindrical portion, and the tip of the tape holding member has a tape-side end of the one side of the tape. Characterized in that it has a curved contact surface for guiding the taping.