JPS62226508A - Tape cable manufacturing apparatus - 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]

(Industrial Application Field) The present invention is mainly directed to an apparatus for producing a laminate type undercarpet tape electric wire, and more particularly, to a tape-shaped electric wire that is compressed into a tape-like shape using at least one pair of crimping rolls +81. 1i Fa production apparatus. (Prior art and its problems) First, the structure of the tape-like '11fFiI will be explained.
Figure 0 shows a cross-sectional view of a tape-shaped electric wire used as a telephone line for full communication. Two of these core wires C are put together by a sheath 3 to form a plurality of core wire groups (sheath cores) 1'. The vinyl sheath 3 is flame retardant 1) VC plastic. Each core wire group 1' is arranged at constant intervals d'
They are sandwiched and bonded using two upper and lower laminated tapes 5.5'. The tape-shaped electric wire T has a core wire storage convex part 7 and a concave adhesive part 8 to which the laminated tapes 5 and 5' are adhered. A perforation M parallel to the core wire 1 is formed in the center of the adhesive portion 8. As shown in FIG. 11, the laminate tape 5.5' has a polyester layer P on the outside, an aluminum layer, for example, in the middle, and an adhesive layer B on the inside. One of the problems when crimp-molding the laminated type electric wire tape as described above, from the viewpoint of electrical properties, is the adhesion of both ends E of each core wire group (sheath core) 1' in Fig. 10. It will be done. Conventional RJ equipment uses, for example, rubber rolls with flat surfaces and metal

[ ] - The tape 5.5' is pressed by the flat pressure rolls together, but the uneven parts such as the core wire storage convex part 7 must be held between them. The deformation of the tape 5.5' cannot be absorbed, and both ends E of the heavy core wire cannot be sufficiently bonded. This is not a big problem if the pitch between the core wire groups, that is, the width W of the adhesive part 8 between the laminated tapes is larger than the core wire group 1', but for example, if the thickness of the core wire group 1' is 1#
On the other hand, when the core wire group pitch is 3# or less, the adhesiveness is extremely reduced. As a result, the conductors become unstable, causing problems in terms of electrical properties (mainly capacitive coupling) and causing crosstalk in telephone wires. It also provides support for perforation processing and terminal construction after pressure bonding. Furthermore, it also causes the breaking phenomenon of the aluminum PAA shown in FIG. Regarding the above problem, the applicant of the present application
In 594, an annular groove is formed in the pressure roll on the - side,
As a pre-pressing step, a yellowtail 7A- having an annular protrusion is
The preforming device is removed by the presser roll. (Objective of 5?i Akira) The present invention further improves a device equipped with a preform 7 presser roll having an annular protrusion, and reliably prevents unreasonable deformation of the tape during preforming. The aim is to make this process more thorough and reliable. (Means for Achieving the Object) In order to achieve the above two objects, the present invention provides at least the following:
A pair of crimping roll sets is provided, and a plurality of annular grooves for guiding the core wire group are installed on one of the crimping rolls of the crimping roll set. , a plurality of preform 7 presser rolls are arranged side by side in the circumferential direction, each presser roll is provided with an annular protrusion that engages with the annular groove of the pressure roll (), and the number of annular protrusions on each presser roll is determined. , the presser foot through which the laminated tape passes first.
The number of protrusions increases sequentially from the central part of the tape width to both ends of the tape width as one moves from the roll to the presser roll on the crimping part side of the crimping roll. (Function) The uneven shape of the laminated tape is created by first preforming a convex part in the center of the width of the tape, and then sequentially extending the convex parts to both ends of the tape width in the pre-pressing process with a pressure roll set. By preforming, the number of uneven shapes formed on the laminate tape is increased. The laminate type and the core wire group are bonded together by supplying the laminate type to the crimping section of the pressing roll set. (Example) Fig. 1 shows, for example, three presser rolls 26-
1.26-2.26-3 is shown. In FIG. 1, the core wire guide shoe 10 is shown in order from the supply source side (left side) of the tape-shaped electric wire "[.
, first pressure roll 1111, second pressure roll set 12.0
- Lugaider 14, a tape both end cutting device 17, and a perforation device 18 are arranged, and one wire winding device is arranged on the front side of the perforation device 18 in the wire feeding direction F. 20 is an edge winding device. A pair of upper and lower laminated tape supplies 21 and 22 and a plurality of core group supplies (sheath core supplies) 23 are arranged closer to the tape-shaped electric wire supply source than the guide shoe 10. Each core wire group ply 23 is wound with a plusdex-sheathed core wire 1liF1'. A guide roll for guiding the upper laminate tape 5 is arranged above the guide shoe 10, and below the guide shoe 10, three preform 7 presser rolls 26-1, 26 are arranged.
-2.26-3 is placed. The first pressure roll set 11 consists of an upper metal pressure roll 27 and an opposing lower pressure roll 28 made of heat-resistant fluorocarbon rubber. Both pressure rolls 27 and 28 are connected to a heat source (heater' rF). The rubber pressure roll 28 is a metal roll whose outer periphery is coated with a thick layer of silicone rubber. The metal pressure roll 27 is connected to a bearing stand 31 via a rotating shaft 30.
The bearing stand 31 is supported by a device stand 33 via a bracket 32. The rubber pressure roll 28 is rotatably supported by a support 1N35, and the support shaft 35 is fixed to a slide holder 36. The slide holder 36 is supported so as to be movable in the vertical direction by the longitudinal guides on both side walls of the roll housing 37, and is connected to the lower end of the pneumatic cylinder 38, and the expansion and contraction of the cylinder 38 moves the rubber roll 28 in the vertical direction. can be adjusted. The housing 37 is fixed to the base 33. As shown in the enlarged partial view of FIG. 9, a plurality of annular grooves 40 for guiding core wire groups are formed on the surface of the lower metal pressure roll 27.
is formed. The annular groove 40 has approximately the same width as the core wire storage projection 7 of the tape-shaped electric wire 1-, and its depth is iJ shallower than the thickness of the core wire storage projection 7. Groove 4
The width of the land portion /II between 0 and 0 is set approximately equal to the width of the adhesive portion 8. Second pressure roll set 12b rubber L [stone roll 4] in Fig. 1
2 and a metal crimping roll 43, the metal crimping roll 43 is arranged above the tape-shaped electric wire T, and the rubber crimping roll 42 is arranged below. Both rolls 42 and 43 are both equipped with a heating source and have flat surfaces. The rubber crimping roll 42 on the lower side of the second crimping roll set 12 is rotatably supported by a bearing pedestal 46 via a rotating shaft 45, and the bearing pedestal 46 is connected to the equipment pedestal 33 via a bracket 32. Supported. Further, the rotation shaft 45 of the rubber pressure bonding roll 42 is operatively connected to an appropriate rotational drive source. The upper metal i31 crimping roll 43 is rotatably supported by a support shaft 48, and similarly to the upper roll 28 of the first crimping roll set 11, it is attached to the slide holder 5.
0 and cylinder 51, etc., roll housing 37
It is supported so that it can be freely adjusted to move in the upward β' direction. In FIG. 2 showing an enlarged view of the part ■ in FIG. Crimp roll 2
7, and are arranged in order in the circumferential direction of the pressure roll 27, and furthermore, the pressure roll 2
It is placed parallel to 7. 4 presser roll 26-1.2
6-2, 26-3 are each rotatably supported by a roll shaft 88 via bearings 89, as shown in FIG. 3, for example. Both ends of the roll shaft 88 are screwed onto a pair of bolt shafts 90, and the bolts @90 are fixed to a roll visual axis 92 parallel to the roll @88. Both bolt shafts 90 are inserted into the shaft insertion hole 92a of the visual shaft 92, and are fixed by a retaining ring 93 so that they cannot fall off. The visual axis 92 is the cylindrical roll 1
It is fitted into the novoter 94 so as to be rotatably adjustable, and is fixed by a lock bolt 95. roll supporter
94 is fixed to the device stand 33. By loosening the bolt 95 and adjusting the rotation of the visual axis 92, the degree of contact of the presser foot 1 call 26-3 with the presser foot 1 call 26-3 against the gold g5\J compression roll 27 is adjusted to W. Note that the lowermost presser roll 26-1 in FIG.
is supported by a bearing stand 31. The four presser rolls 26-1.26-2.26-3 in FIG.
1 is formed, and the number and arrangement of these annular protrusions 91 are different for each of the four presser rolls 26-1.26-2.26-3. That is, the first presser roll 26-1, which is disposed farthest from the crimping part S of the crimping roll 27 and which the tape 5' passes over first, has a 1'' mark as shown in FIG. 4; One annular protrusion 91 is formed. As shown in FIG. 5, the second presser roll 26-2 next to the first presser roll 26-1 in FIG. The number of protrusions 91 is increased one by one, so that five protrusions 91 are formed. And the third presser roll 26 closest to the crimping part S in FIG.
-3, for example, nine protrusions 9, the same number as the annular groove 40.
1 has already been formed. In short, pressure? The number of protrusions 91 is configured to increase sequentially from the center of the tape width toward the 7th part S side. In the roll holder 14 of FIG. 1, a roll holder 52 is rotatably supported around a vertical shaft 53, and the roll holder 52
Rolls 5b are rotatably supported at both ends of the rolls 3, respectively. This roll holder = 14 is connected, for example, to a phototube for detecting horizontal exposure of the electric wire, and the phototube is connected to the tape-shaped electric wire 1.
’ is detected, the holder 5 is moved around the vertical axis.
2 rotates to correct the deviation of the tape-shaped electric wire T in the width direction. The cutting device 11 forms an annular concave portion with a tape-like electric wire width on one metal roll 57, and an annular convex portion with a finished dimension width of the tape-shaped electric wire a1 on the other roll 56. , both ends of the tape-shaped electric wire'[ are cut by the engagement of the convex part and the concave part of both rotating n-rues 56 and 57. Machining blade 58
It consists of a roll and a linear perforation M is machined in the connecting part 8 of the tape-shaped electric wire (Fig. 10). The guide shoe 10 is shown in FIG. The desk is formed into a rectangular shape. A lid 61 is fixed to the upper surface of the shoe 10. At J3 in FIG. 7, the shoe 10 is fixed to a table 63, and the table 63 is movable in the wire feeding direction, perpendicular to the feeding direction, and in the vertical direction to adjust the device stand 3.
It is supported by 3. In other words, the table 63 is the slider 6
161 is set to 4 and a3. The slider 64 is fitted into a pair of guide shafts 66 parallel to the electric wire T so as to be movable in the axial direction, and is also screwed into a lead screw 67 parallel to the guide shafts 66 . The guide shaft 66 is fixed to the intermediate slider 70, and the lead screw 67 is rotatably supported 11 on the intermediate slider 70 and is integrally provided with a knob 69. That is, by turning the lead screw 67 11 times using the six knobs, the slider 64 is adjusted to move parallel to the electric wire, and is fixed at an appropriate position with the lock bolt 71. The intermediate slider 70 is fitted into a pair of guide shafts 75 perpendicular to the electric wires so as to be movable in the longitudinal direction of the guide shafts, and is also screwed into a lead screw 76 parallel to the guide shafts 75. It is fixed to a stand 77 in a cantilevered manner. The lead screw 76 is rotatably supported by a stand 77 and is integrally provided with a knob 80. 81 is a lock bolt for fixing the lead screw 67. 82
is a connecting plate that supports one end of the guide shaft 75 and lead screw 76. The intermediate slider 70 is adjusted to move in a direction perpendicular to the electric wire by turning the lead screw 76 by a rotation of φ with the tapping knob 80, and is fixed with the lock bolt 81. A long hole 85 is formed in the stand 77, and the wL
The stand 77 is fixed to the device stand 33 by a bolt 86 inserted into the elongated hole 85 so as to be adjustable in downward movement. ￥J Explain about artificial culm. In FIG. 11, each core wire group (sheath core) 1' that has been sheathed is arranged at intervals in the width direction by a guide sheath 1-10, and then placed between a first compression roll set 27 and 28. sent to. The upper laminate 1-tape 5 is applied from the upper side of the core wire group 1' through the roll 25 to the first crimping group 27.28.
sent in between. The lower laminated tape 5' is first fed between the pressure roll 26-1 of No. 1 and the metal pressure roll 27, and as shown in FIG. is preformed into a convex shape, and then fed between the second presser roll 26-2 and the metal pressure roll 27 in FIG. The convex parts are preformed one by one, roughly 3 in Figure 6.
2nd presser roll 26-3 and metal MrtE attachment +1-ru 2
7, the convex portions corresponding to the number of annular vortices 40 are preformed, and the first pressure roll navy blue 27 in FIG.
．． Sent during the 28th. The core wire group 1' is crimped between the upper and lower laminating tapes 5.5' using the first crimping roll set 27 and 28. Since the rubber-covered compression roll 28 is arranged on the upper side, the rubber roll 28 presses the core ``fA group 1'' from above and is elastically deformed along the upper surface shape of the core wire group, thereby completely bonding the upper laminate 1-day 75 and the core wire group 1'. Moreover, by the stamping action of the metal pressure bonding roll 27, the both ends E of the housing convex portion 7, that is, the boundary between the housing convex portion 7 and the bonding portion 8 are reliably bonded so that no gaps are formed. In the second pressure roll set 12 shown in FIG. 1, since the rubber roll 42 is arranged on the lower side, the adhesion between the lower laminate tape 5' and the core wire group 1' is completely achieved. After the 11-piece molding, the tape-shaped electric wire T is corrected for deviation in the width direction by a roll guider 14, and both ends are trimmed to a specified size by a cutting device 17. Further, a perforation opening is machined in the adhesive part 8 using a sewing machine [1 processing equipment'fj118]. (Another embodiment) 1 (1) In the embodiment shown in FIGS. 14 to 17, for example, when n presser rolls 26-1, 26-2, . As shown in Fig. 15, the first presser roll 26-1, through which the tape first passes, has a
The presser foot 1 of No. 2 [1 in FIG.
-1- In the rule 26-2, one protrusion 91 is added on each side of the protrusion 91 in the center. In this way, the number of protrusions 91 increases one by one on both ends of the tape width as it moves toward the crimping part S side in FIG. 14, and as shown in FIG. (2n-1) protrusions 91 are formed. Further, the number of protrusions 91 on the final presser roll 26-n is made to correspond to the number of annular grooves 40 on the pressure roll 27. That is, the pressure roll 26-126- is placed on the surface of the pressure roll 27.
If a space for arranging a large number of protrusions 91 can be secured, more careful preforming can be achieved by increasing the number of protrusions 91 by one on each side as described above. (2) One set of crimping rolls [ノ、;p 1. JtechiJ
Furthermore, three or four or more sets may be provided. (3) An annular groove may be provided in the rubber rolls 28 of the first pressure roll 11 set. (4) The present invention can also be applied to the production of a tape-shaped electric wire whose upper surface is substantially flat as shown in FIG. (5) Figure 13 shows the tape-down type Fl used for button-type telephones.
ll', and each core wire storage convex portion 7 contains five core wires C. For such a tape-shaped electric wire T, a wide annular fffl corresponding to the width of the convex portion 7 of the electric wire shown in FIG. The protrusion 91 of the presser roll 26
The width of the annular groove 40 is also formed to match the annular groove 40 . (Effects of the Invention) According to the present invention as explained: (1) Before the crimping process, a plurality of annular grooves 40 are formed for the bridle 7A having the crimping roll 27 and the annular protrusion 91. Since the laminate tape 5' is preformed into an uneven shape along the shape of the core wire group 1' between the presser roll 26 and the presser roll 26, unreasonable deformation or distortion of the tape is prevented during crimping. This makes it possible to reliably bond both ends of the core wire 8T1'.Furthermore, phenomena such as breakage of the aluminum layer of the tape J3 during crimping can be reliably prevented, and a high-quality tape-shaped electric wire can be provided. (2) A plurality of presser rolls are arranged on the tape supply source side portion of the pressure roll 27, and 8 presser rolls 26-1, 26-
2. The number of annular protrusions 91 is determined from the presser roll 26-1 through which the tape-shaped electric wire passes first to the presser rolls 26-2, . . . , 26-n on the crimping portion S side of the crimping roll 27. , the number of protrusions 91 increases sequentially from the center of the tape width to both ends of the tape width, eliminating unreasonable deformation and distortion of the tape during preforming, and allowing extremely careful The core wire group 1' can be preformed into the desired shape, and both ends of the core wire group 1' can be more reliably bonded. Therefore, it is possible to provide a tape-shaped electric wire of even higher quality. (3) By completely adhering both ends of the core wire group 1', the conductors are stabilized and crosstalk of the telephone line due to electrostatic coupling can be prevented. (4) Core wire 1! Since both ends of T 1 ' can be completely bonded, the perforations formed by the perforation hole processing after compression molding can be formed neatly and reliably, and the terminal construction work is thereby facilitated.

[Brief explanation of drawings]

Fig. 1 is a side view of a tape-shaped electric wire manufacturing apparatus to which the present invention is applied, Fig. 2 is an enlarged view of the ■ part in Fig. 1, and Fig. 3 is an enlarged view of the
11-I11 cross-sectional enlarged view, Figures 4 and 5 are rV in Figure 2.
-rV, v-■ cross section enlarged partial view, Figure 6 is an enlarged partial view of Figure 3, Figure 7 is an enlarged view of the v■ section of Figure 2, Figure 8 is a ■-■ cross section of Figure 7. Enlarged view, Figure 9 is IX- of Figure 2.
rX cross-sectional enlarged view, Fig. 10 is a cross-sectional view showing an example of a tape-like city line, Fig. 11 is a cross-sectional enlarged view of a laminated tape,
12 and 13 are sectional views of different types of tape-shaped electric wires, FIG. 14 is a side view of another embodiment, and 15 and 1
6, Figure 17 is 111 (7) XV-XV, XVI-X
VI, XVl-XVl sectional view. C...Core wire, 7...Core wire storage convex portion, 11.12...Crimp L]
-Role set, 26-1.26-2...26-n...Press roll, 27.28...Crimping roll, 40...Annular groove, 91...Annular protrusion Patent applicant Large 111 Hon Electric Cable Co., Ltd. Agent Patent Attorney Tadataka Oshiki, ``'1 Drawing T!! (Contents (no changes) Figure 14, Figure 6 Figure 75 Figure 17 Procedural Amendment (Voluntary) April 25, 1986

Claims (1)

[Claims] Manufacture of a tape-shaped electric wire in which an appropriate number of insulated core wires are sheathed in plastic to form a plurality of core wire groups, and the core wire groups are arranged at regular intervals and sandwiched and bonded from both sides with laminated tape. In the device,
At least one pair of upper and lower crimping rolls is provided, one of the crimping rolls is provided with a plurality of annular grooves for guiding the core wire group, and the wire supply source side portion of the annular grooved crimping roll is provided with a plurality of annular grooves for guiding the core wire group, A plurality of presser rolls for preforms are arranged side by side in the circumferential direction, each presser roll is provided with an annular protrusion that engages with the annular groove of the pressure roll, and the number of annular protrusions on each presser roll is determined first. It is characterized by a configuration in which the number of protrusions increases sequentially from the center of the tape width to both ends of the tape width as it goes from the presser roll through which the laminated tape passes to the presser roll on the crimped portion side of the crimping roll. Tape-shaped electric wire manufacturing equipment.