JPS5848308A - Longitudinal tape forming machine for cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cable longitudinal tape forming apparatus used for longitudinally covering a cable core with tape during the manufacture of electrical cables, optical cables, etc. previously proposed a vertically attached tape forming apparatus as shown in FIGS. 1 to 4 for the purpose of improving the reproducibility of manufacturing 7-ohm ζ-inch grooves.

This equipment company provided a hole 3 in the molded base 4 for forming and wrapping the data f2 attached vertically to the cable core 1 with the cable core 1 on the inside, and also provided an overlapping system in the molded base 4KIIi with the molded base 4. Open the upper edge opening window 5 of the tape 2 so as not to press the tape edge 2b that should be on the upper side when opening the upper edge 2b of the tape 2 in the armpit 3.
2. The length Kbft, -x, of the front and back of the starting position X, is provided, and the tape overlaps the bottom side of the molded base 4. It has a structure in which a tape lower edge opening window 6 for opening the tape edge 2a, which is to be formed, so as not to press it, is provided from just before the start position X to the rear thereof.

In the forming device shown in Fig. 3, when the overlapping portion of the Tezo 20 is formed, the tape edge 2a which should be the lower side is held down by the tapered hole 3 as shown in Fig. 3, and the tape edge which should be the upper side is The upper edge of the tape 2b is not pressed down by the presence of the open window 5, but is inflated outward by the spring pack force, creating a step between both tape edges 2m and 2b, so that one tape edge 2a is always at the bottom. Due to the existence of the tape edge open window 6, the lower tape edge 2a is also pressed down at the starting position X. Remove and seesaw with 20 layers of tape]
I try to make it smooth.

However, in such a vertically attached tape forming device,
During molding, if the tape overlapping starting position tx moves back and forth within the range, and this tape overlapping starting position The upper tape edge 2b pierces the rising surface 5 which forms part of the contour of the tape upper edge open window 5 along the longitudinal direction of the tapered hole 3, and both edges s2 of the tape 2 a*2
There was a drawback that the overlapping of k did not work properly.

In addition, in such a structure, both edges of tape 2 @2as2
The open window 5 at the upper edge of the tape for creating a step in b presses the beginning and end of the tape 2 during molding, leaving the middle free.
Since this is to partially apply the spring pack force to the free part, depending on the material and width of the tape, the spring pack force may not work sufficiently and a step may not be created on both edges 2as2b of the tape 2. However, it is an object of the present invention to provide a longitudinally spliced tape forming apparatus for cables that can satisfactorily overlap both edges of the tape.

The present invention provides a longitudinal cable tape forming apparatus in which a forming base is provided with a tapered hole in which a tape attached longitudinally to a cable core is wound around the outer periphery of the cable core. In the process, a step part in the vertical direction for orienting the winding so that one side is inside and the other side is outside is formed on the inner edge of the tape in the longitudinal direction only on the upper surface at a predetermined position t from the entrance of the tapered hole. A relief part is provided along the upper surface of the tapered hole to prevent the edge of the upper edge of the tape from abutting over a length before and after the position where both edges of the tape O start to overlap. A portion of the tapered hole provided on the side and beyond the relief portion is a winding hole portion for winding the tape around the outer periphery of the cable core.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 5 to 10, the cable longitudinal tape forming apparatus of this embodiment has a rectangular parallelepiped-shaped forming base 4 made of metal, hard glass, etc. , a tapered hole 3 for rounding the longitudinal splicing tape 2 on the outer periphery of the cable core l, and a straight hole 7 for regulating the outer diameter of the tape after forming in this chi/hole 3 are continuously formed. .

The length consisting of the entrance of the tapered hole 3Fi is different on the left and right radii Rs v RI (where RI < 1 m
), and when forming the overlapping υ part, the half-hole part 3 passes through while forming the tape edge 21 which should be the lower side.
＠ is the middle hole part of the smaller radius R1, and the middle hole part 3■ through which the tape edge 2b which should be on the upper side is formed when forming the overlapping part of the tape is the middle hole part 3■ of the larger radius R.
, is the middle hole of the hole. The fin radius R1e becomes gradually smaller from the entrance to the exit of the tapered hole 3. Also, the difference between the medium diameter B*@ device is that the tape 2
0 It is not necessary when both edges 2m and 2b are overlapped, so from then on it is RI-R1 ・The half-hole part 3 and 311 of the parts with different inner diameters have the same bottom surface and 1 top surface is formed so as to occupy the step portion 8 in the vertical direction.

In the molded base 4, a viewing window 5' is provided over the length before and behind the tape overlap start position at the point where the upper edge of the tape passes, and on the opposite side of the groove 9, an open window 6 at the lower edge of the tape is provided. It is provided.

In the upper part of the molded base 4, there is a raised part forming a part of the viewing window 5' along the longitudinal direction of the hole 3, )msA.
' is gradually retreated to the area O of the inner hole part 3 of the smaller radius R1 when viewed from the entrance to the exit direction of the taper hole 3,
A relief part 9 is formed so that the edge of the tape upper edge 2bO does not become a protrusion 1.

On the end side of Qi/Medium hole 3, connect Qi f2 to cable core 1**
This is a tightening hole 31 for tightening.

Molded base 4Fi The portion from the entrance of the tapered hole 3 to the end of the tape lower edge open window 6 is divided into two by a dividing surface 10 that passes through the stepped portion 8 and traverses the tapered hole 3, and the molded base 4 is shaped like a rectangular parallelepiped. The first part of 4. and a 5-shaped wc2 portion 411, making manufacturing easier. The split surfaces 10 are connected by bolts (not shown) or the like.

In such a longitudinally attached tape forming apparatus, the tape 2 that is longitudinally attached to the cable core IK and enters the front hole 3 as shown in FIG. 8 is gradually formed so as to incorporate the cable core 1. At this time, both edge portions 2a and 2b of the chi f20 are half-hole portions 31+3 having multiple upper KR difference portions 8 with different radii.
1, a step is formed on the chie f2 from the entrance of the taper hole 30 so that the tape l1 portion 2m is at the bottom and the p1 tape edge 2b is at the top. Therefore,
Regardless of the model number such as the material of tape 2, one side edge @2
The chi f2 can be wrapped around the outer periphery of the cable core lO so that @ is always at the bottom. By visually confirming the state in which Chi f2 is being formed in this way through the viewing window 5', *I, Chi 7" 20 class 1112
The tape overlap start position A rising surface 5A forming part of the panoply along the direction 5'O
' is gradually retreating from the Qi Δ hole 30 population to the area of the smaller half hole Illt of the smaller half Illt when viewed from the exit direction, forming an escape @9, so that the upper tape edge 2b But it hit 5' on this rising surface! In addition, the 1112 m of both edges of the chi f20 and the 2% overlap i are not obstructed, and rounding can be performed satisfactorily. Weight of Qi 220 both edges 2 a e 2 b tn*v%
After the tape is formed, due to the presence of the tape lower edge open window 6, the lower edge 2a of the tape is no longer held down.
Due to the force of the spring batter, the tip ff1lk portion 2a swells and comes into contact with the inner surface of the upper tip edge 2b. In this state, the tape 2 passes through the winding hole 31 and is wound around the outer periphery of the cable core 1, and is then inserted into the straight hole 7 and finished to a constant outer diameter.

Note that the viewing window 5' and the tape lower edge opening window 6 can be omitted. Also, the relief part 9 can be formed as a recessed part on the upper surface of the tenor hole 3.

Furthermore, it is possible to separate the molded base 4 at the boundary between the straight hole 7 and the tapered hole 3 to make each part independent.As explained above, in the cable longitudinal tape forming apparatus according to the present invention, Since a vertical step is provided along the elongated direction only on the upper surface from the entrance of the taper hole to a predetermined position, the tape is in a state where a step can be added to both edges of the tape from the entrance of the QI4 hole. , molding can be carried out to ensure that one tape edge is always on the bottom.

In addition, in the present invention, since a relief part is provided at the upper part of the teno l hole, the upper edge of the tape protrudes from the stepped part of the molded substrate during stacking. This eliminates the possibility of interfering with the overlapping parts, and prevents the overlapping parts from becoming twisted. Therefore, according to the present invention, it is possible to provide a molding device with excellent molding performance. Moreover, since this molding device can be manufactured by cutting or drilling a pre-shaped molding base, the song has the advantage of better reproducibility compared to kameno, which is manufactured by machining.

[Brief explanation of drawings]

Figures 1 and 2 are a perspective view and a plan view of a conventional molding device, and Figures 3 and 4 show the 1-ring line and ff-IF in Figure 2.
@! The sectional view, FIG. 5, FIG. 6, and FIG. 7 are a perspective view, a plan view, a side view, and FIG.
Figures 9 and 10 are line A-A of Figure 7, B-B@%C-
It is a sectional view of C wire number. 1... Cable core, 2... Tape, 2 a p 2
b ・-Tape edge, 3...Tapered hole, 3as3b・
...Semi-hole part, 5゜4...Molded base, 5' viewing window, 5A
'... Standing surface, 8... Step part, 9... Relief part.

Claims (1)

[Claims] In a vertically attached cable tape forming apparatus in which a molding base is provided with a hole Δ for forming a nine-chip longitudinally attached to a cable core, a nine-piece tie 1 is wound around the outer periphery of the cable core.
A step part in the vertical direction is located at a predetermined position from the entrance of the tapered hole to orient the wrapping so that one side is inside and the other side is outside on both sides of the tape while passing through the hole. It is provided along the longitudinal direction only on the upper surface of the mold to prevent the edge of the upper edge of the tape from suddenly collapsing over a length before and after the position where the inner edges of the tape overlap and start seaming. A relief portion is provided on the upper surface side of the chi Δ hole, and a portion of the tapered hole at the tip of the relief portion serves as a tightening hole portion for wrapping the tape around the outer periphery of the cable core. Vertical tape forming equipment for cables characterized by