WO2023157940A1

WO2023157940A1 - Device and method for manufacturing twisted pair wire

Info

Publication number: WO2023157940A1
Application number: PCT/JP2023/005606
Authority: WO
Inventors: 直人木下
Original assignee: 矢崎総業株式会社
Priority date: 2022-02-18
Filing date: 2023-02-16
Publication date: 2023-08-24

Abstract

A device (100) for manufacturing a twisted pair wire comprises: a first rotation member (110); a second rotation member (120); clamps (130); and a control unit (140). The control unit (140) executes first control for fixing two electrical wires (10) to the first rotation member (110) and the second rotation member (120) and rotating the first rotation member (110) and the second rotation member (120) in opposite directions in a state where a first position (P1) and a second position (P2) are not fixed by the clamps (130), and second control for fixing the two electrical wires (10) to the first rotation member (110) and the second rotation member (120) and rotating the first rotation member (110) and the second rotation member (120) in the opposite directions in a state where the first position (P1) and the second position (P2) are fixed by the clamps (130).

Description

Twisted pair wire manufacturing device and manufacturing method

The present invention relates to a twisted pair wire manufacturing apparatus and manufacturing method.

A twisted pair wire formed by twisting two electric wires is conventionally known. Such a twisted pair wire is, for example, tape-wound at both end sides so as not to untwist. However, if the tape is detached from the twisted pair, the twist will be untwisted.

Therefore, a twisted pair wire has been proposed in which the pitch at both ends is narrower than the middle pitch (see Patent Document 1, for example). Since this twisted pair wire has a narrow pitch at both ends, it is difficult to untwist even if the tape comes off.

Japanese Patent Application Laid-Open No. 2009-231157

Here, the twisted pair wire manufacturing apparatus described in Patent Document 1 includes, for example, one end side rotation member for twisting two electric wires on one end side and two electric wires on the other end side individually. It has a rotating member on the other end side that rotates, and a moving member that can move from one end side to the other end side of the two electric wires. However, this manufacturing apparatus has a mechanism (one-end rotating member) for twisting two electric wires only on one end side of the twisted pair wire. Therefore, in the manufacturing method using this manufacturing apparatus, it is difficult to form appropriate narrow pitch portions at both ends.

The present invention has been made in order to solve such conventional problems, and its object is to provide a twisted pair wire manufacturing apparatus and manufacturing method capable of appropriately narrowing the pitch at both ends. to provide.

A twisted pair wire manufacturing apparatus according to the present invention includes: a first rotating member that fixes one end side of two electric wires arranged side by side and is rotatable for twisting the two electric wires; a second rotating member that fixes the other end of the two electric wires and is rotatable for twisting the two electric wires together; a fixing member that fixes a first position on the other end side by the length and a second position on the one end side by a second predetermined length from the twisted end position that is the other end side of the two electric wires; , a control means for controlling the operations of the first rotating member, the second rotating member, and the fixed member, wherein the controlling means connects the two electric wires to the first rotating member and the second rotating member. is fixed and the first position and the second position are not fixed by the fixing member, and the first rotating member and the second rotating member are rotated in opposite directions; The two electric wires are fixed to the rotating member and the second rotating member, and the first rotating member and the second rotating member are fixed to each other with the first position and the second position fixed by the fixing member. and a second control for rotating in the opposite direction.

A method for manufacturing a twisted pair wire according to the present invention includes a first fixing step of fixing both end sides of two wires arranged in a straight line, and the two wires whose both end sides are fixed in the first fixing step. A first control step of twisting the two wires by rotating one end side and the other end side in opposite directions to each other, and a twisted end of the one end side of the two wires twisted in the first control step A first position on the other end side by a first predetermined length from the two wires and a second position on the one end side by a second predetermined length from the twisted ends on the other end side of the two electric wires are fixed by a fixing member. a second fixing step; and one end side and the other end side of the two wires fixed at the first position and the second position in the second fixing step are rotated in opposite directions to and a second control step of further twisting the wires.

According to the present invention, it is possible to provide a twisted pair wire manufacturing apparatus and manufacturing method capable of more appropriately narrowing the pitch at both ends.

BRIEF DESCRIPTION OF THE DRAWINGS It is a lineblock diagram which shows the twisted pair wire which concerns on 1st Embodiment of this invention, (a) is a top view, (b) is a partial expansion perspective view. 1 is a schematic configuration diagram showing a conventional twisted pair wire manufacturing apparatus; FIG. 1 is a schematic configuration diagram showing a twisted pair wire manufacturing apparatus according to a first embodiment; FIG. FIG. 4 is a process diagram showing a method for manufacturing a twisted pair wire according to the first embodiment, in which (a) shows a chucking step (first fixing step) and (b) shows a normal pitch forming step (first controlling step); , (c) shows the clamping process (second fixing process), and (d) shows the narrow pitch forming process (second control process). 4 is a flow chart showing a method of manufacturing a twisted pair wire according to the first embodiment. It is a schematic block diagram which shows the manufacturing apparatus of the twisted pair wire which concerns on 2nd Embodiment, (a) shows the whole structure, (b) has shown the partial structure of (a). 6 is a flow chart showing a method of manufacturing a twisted pair wire according to the second embodiment. FIG. 5 is a partial configuration diagram showing a modification of the twisted pair wire manufacturing apparatus according to the second embodiment.

The present invention will be described below according to preferred embodiments. It should be noted that the present invention is not limited to the embodiments described below, and can be modified as appropriate without departing from the gist of the present invention. In addition, in the embodiments shown below, there are places where illustrations and explanations of some configurations are omitted, but the details of the omitted technologies are as long as there is no contradiction with the contents explained below. Needless to say, well-known or well-known techniques are applied as appropriate.

FIG. 1 is a configuration diagram showing a twisted pair wire according to the first embodiment of the present invention, where (a) is a plan view and (b) is a partially enlarged perspective view. In addition, in FIG.1(b), illustration of a part structure (the terminal 5 mentioned later) is abbreviate|omitted.

As shown in FIG. 1(a), the twisted pair wire 1 according to the first embodiment is configured by twisting two electric wires 10 together. Each electric wire 10 includes a conductor 11 and an insulator 12 as shown in FIG. 1(b).

The conductor 11 is a long conductive filamentary body for transmitting electric power, signals, etc., and is made of metal such as copper or aluminum, an alloy of these metals, or a metal-plated material thereof. etc. These conductors 11 are made by twisting a plurality of wires, but they are not limited to this and may be single wires. The insulator 12 covers the conductor 11 and is made of, for example, PP (Polypropylene), PE (Polyethylene), PVC (Poly Vinyl Chloride), or the like.

Here, in the twisted pair wire 1 according to the first embodiment, a portion from the first twisted end (twisted end on one end side) E1 to the other end side by a first predetermined length is the one end portion 2, and the second twisted end ( The other end portion 3 is formed from the twist end E2 on the other end side to the one end side by a second predetermined length, and the intermediate portion 4 is formed between the one end portion 2 and the other end portion 3 . In the first embodiment, it is assumed that the first predetermined length and the second predetermined length are the same distance, but they are not limited to this and may be different distances.

Furthermore, in the first embodiment, the twisted pair wire 1 has a twist pitch narrower at the one end 2 and the other end 3 than at the intermediate portion 4 . As a specific example, when the size of the conductor 11 is 0.35 sq or more and 0.75 sq or less, the twist pitch of the intermediate portion 4 is 40 mm, while the twist pitch of the one end portion 2 and the other end portion 3 is 10 mm.

In particular, in the first embodiment, as a result of the one end portion 2 and the other end portion 3 having a narrow pitch, the narrow pitch state (at least the pitch state narrower than the twist pitch of the intermediate portion 4) is maintained without tape winding. It is designed to

In the example shown in FIG. 1( a ), the terminals 5 are attached to both ends of the twisted pair 1 , but the terminals 5 are not necessarily essential in the twisted pair 1 . In the first embodiment, it is assumed that the twisted pair wire 1 is manufactured from two electric wires 10 to which the terminals 5 are attached. The twisted pair wire 1 may be manufactured from two electric wires 10 .

Next, before describing the apparatus and method for manufacturing the twisted pair wire 1 according to the first embodiment, a conventional apparatus and method for manufacturing a twisted pair wire will be described. FIG. 2 is a schematic configuration diagram showing a conventional twisted pair wire manufacturing apparatus. As shown in FIG. 2, a conventional manufacturing apparatus 200 for a twisted pair wire 201 has a rotating member 220 for twisting two electric wires 210 on one end side. The manufacturing apparatus 200 also has two rotating members 230 on the other end side for rotating the two electric wires 210 individually. Furthermore, the manufacturing apparatus 200 has a moving member 240 . This moving member 240 moves from one end side of the two electric wires 210 toward the other end side, and its moving speed can be adjusted.

In such a manufacturing apparatus 200, each rotating

member

220, 230 is rotated at a constant speed, for example. On the other hand, the moving member 240 is moved slowly at the one end portion 212 and the other end portion 213 and is moved rapidly at the intermediate portion 214 . With such control, the conventional manufacturing apparatus 200 tries to narrow the pitch between the one end portion 212 and the other end portion 213 where the moving member 240 is moved at low speed, rather than the intermediate portion 214 .

Here, when the moving member 240 is moved at a low speed at a position corresponding to the one end portion 212, it is possible to make the one end portion 212 have a narrow pitch. However, even if the moving member 240 is moved at a low speed at a position corresponding to the other end portion 213, the rotation by the rotating member 220 is absorbed by the intermediate portion 214, making it difficult to narrow the pitch of the other end portion 213. Become. In particular, when the pitch of the other end portion 213 is narrow, the pitch of the intermediate portion 214 also tends to be narrow.

In addition, after the one end portion 212 is twisted first, the wire 210 is twisted in the order of the intermediate portion 214 and the other end portion 213 according to the movement of the moving member 240, so that the one end portion 212 is twisted at a predetermined pitch. However, the one end portion 212 is also twisted by the subsequent twisting of the intermediate portion 214 and the other end portion 213 . As a result, it becomes difficult to set the one end portion 212 at an appropriate twist pitch. In particular, if the one end portion 212 is excessively twisted, the conductor or insulator forming the one end portion 212 will be damaged.

As described above, it is difficult to appropriately narrow the pitch of the one end portion 212 and the other end portion 213 in the conventional twisted pair wire manufacturing method.

FIG. 3 is a schematic configuration diagram showing a manufacturing apparatus for the twisted pair wire 1 according to the first embodiment. As shown in FIG. 3, the manufacturing apparatus 100 for the twisted pair wire 1 according to the first embodiment includes a first rotating member 110, a second rotating member 120, a clamp (fixing member) 130, a control section (control means ) 140.

The first rotating member 110 is a rotating body for fixing one end side of two electric wires 10 arranged side by side and for twisting the two electric wires 10 together. The first rotating member 110 has a chuck portion (not shown) for fixing and holding the electric wires 10, and one end side of the two electric wires 10 is fixed by the chuck portion. Further, the first rotating member 110 is configured to rotate around a central axis A along the two wires 10 while holding the two wires 10 fixed. The first rotating member 110 can twist the two electric wires 10 by rotating around the central axis A. As shown in FIG.

The second rotating member 120 is a rotating body for fixing the other ends of the two electric wires 10 arranged side by side and for twisting the two electric wires 10 together. The second rotating member 120 has a chuck portion (not shown) for fixing and holding the electric wires 10, and the other ends of the two electric wires 10 are fixed by the chuck portion. Further, the second rotating member 120 is configured to rotate about a central axis A along the two electric wires 10 while holding the two electric wires 10 fixed. The second rotating member 120 can twist the two electric wires 10 by rotating around the central axis A. As shown in FIG.

The clamp 130 is located at a first position P1, which is located on the other end side by a first predetermined length (see FIG. 1(a)) from the first twisted end E1 (see FIG. 1(a)) of the two wires 10, and A second position P2, which is one end side, is fixed by a second predetermined length (see FIG. 1(a)) from the second twisted ends E2 (see FIG. 1(a)) of the two electric wires 10. FIG.

The control unit 140 controls the operations of the first rotating member 110, the second rotating member 120, and the clamp 130. The control section 140 includes a first control section 141 , a second control section 142 , a pitch setting section (pitch setting means) 143 , and a position setting section (position setting means) 144 .

The first control unit 141 performs the first rotation in a state in which the two electric wires 10 are fixed to the first rotating member 110 and the second rotating member 120 and the first position P1 and the second position P2 are not fixed by the clamp 130. A first control is executed to rotate the member 110 and the second rotating member 120 in directions opposite to each other.

The second control unit 142 fixes the two electric wires 10 to the first rotating member 110 and the second rotating member 120, and fixes the first position P1 and the second position P2 with the clamp 130, and moves the first rotating member 110. and the second rotating member 120 are rotated in directions opposite to each other.

Since the apparatus 100 for manufacturing the twisted pair wire 1 according to the first embodiment includes the first control unit 141 and the second control unit 142 as described above, for example, the first control is first performed to separate the two electric wires 10. After the whole twisting, a second control can be performed to narrow the pitch of the one end 2 and the other end 3 . In particular, since the control is not for sequentially twisting the two wires 10 from one end side to the other end side, it is difficult to make the other end side have a narrow pitch, and the one end side is prevented from being excessively twisted. can be done.

The pitch setting section 143 sets the twist pitch of the one end portion 2 and the other end portion 3 . The pitch setting unit 143 stores the twist pitch information when the twist pitch information of the one end portion 2 and the other end portion 3 is input through a touch panel (not shown) or the like provided in the manufacturing apparatus 100 . In the second control, the control unit 140 controls the rotation (rotational speed and amount) of the first rotating member 110 and the second rotating member 120 based on the twist pitch information stored by the pitch setting unit 143. becomes.

The position setting section 144 sets the first position P1 and the second position P2 that are fixed by the clamp 130 . When the length information of the one end portion 2 and the other end portion 3 is input through, for example, a touch panel (not shown) provided in the manufacturing apparatus 100, the position setting portion 144 stores the length information. The control unit 140 determines that the length from the position of the first twisted end E1, which is the twisted end of one end of the two electric wires 10, is the first position P1, and the other ends of the two electric wires 10 are determined. The second position P2 is determined to be the position of the length from the position of the second twist end E2, which is the twist end of . Further, the control unit 140 moves the clamps 130 to the positions P1 and P2 when or before the second control is started, and fixes the first position P1 and the second position P2 by the clamps 130 when the second control is started. .

Next, a method for manufacturing the twisted pair wire 1 according to the first embodiment will be described. 4A and 4B are process diagrams showing the method for manufacturing the twisted pair wire 1 according to the first embodiment, in which (a) shows the chucking process (first fixing process) and (b) shows the normal pitch forming process (first (c) shows the clamping step (second fixing step), and (d) shows the narrow pitch forming step (second controlling step). FIG. 5 is a flow chart showing a method for manufacturing the twisted pair wire 1 according to the first embodiment.

First, as shown in FIG. 5, both ends of the two electric wires 10 are chucked (fixed) by the first rotating member 110 and the second rotating member 120 (S1). At this time, as shown in FIG. 4A, the two electric wires 10 are arranged in a straight line.

Next, the first control unit 141 executes first control to rotate the first rotating member 110 and the second rotating member 120 in opposite directions (S2). As a result, as shown in FIG. 4B, one end side and the other end side of the two electric wires 10 fixed at both ends are rotated in opposite directions, and the two electric wires 10 are twisted as a whole. It will be taken away.

After that, as shown in FIG. 5, the first control unit 141 determines whether the normal pitch has been completed (S3). If the normal pitch has not been completed (S3: NO), the process proceeds to step S2.

On the other hand, when the normal pitch is completed (S3: YES), the control unit 140 stops the rotation of the first rotating member 110 and the second rotating member 120, moves the clamp 130 to an appropriate position, and moves the clamp 130 to the first position. P1 and the second position P2 are clamped (S4: see FIG. 4(c)). In this process, the control unit 140 moves the clamp 130 to an appropriate position according to the length from the twist ends E1 and E2 set by the position setting unit 144. FIG.

After that, the second control unit 142 executes second control to rotate the first rotating member 110 and the second rotating member 120 in opposite directions (S5). As a result, as shown in FIG. 4D, one end side and the other end side of the two electric wires 10 are rotated in opposite directions while the first position P1 and the second position P2 are fixed. . The directions of rotation of the two

rotating members

110 and 120 here are the same as the directions of rotation in step S2. Also, in this process, the second control unit 142 controls the rotation speed, rotation amount, etc. of the first rotating member 110 and the second rotating member 120 so as to achieve the pitch set by the pitch setting unit 143 .

After that, as shown in FIG. 5, the second control unit 142 determines whether the narrow pitch has been completed (S6). That is, the second control section 142 determines whether the pitch set by the pitch setting section 143 has been achieved for the one end portion 2 and the other end portion 3 . If the pitch set by the pitch setting unit 143 is not achieved (S6: NO), the process proceeds to step S5.

When the pitch set by the pitch setting unit 143 is reached (S6: YES), the control unit 140 stops the rotation of the first rotating member 110 and the second rotating member 120, and releases the clamp 130 (S7). , the chuck portion is released (S8). After that, the processing shown in FIG. 5 ends.

In this manner, according to the manufacturing apparatus 100 for the twisted pair wire 1 according to the first embodiment, the first rotating member 110 and the second rotating member 110 are rotated while the first position P1 and the second position P2 are not fixed by the clamp 130 . A first control for rotating the two rotating members 120 in opposite directions to each other; A second control to rotate is executed. Therefore, for example, after the first control is first performed to twist the two electric wires 10 as a whole, the second control can be performed to narrow the pitch between the one end portion 2 and the other end portion 3 . In particular, since the control is not for sequentially twisting the two wires 10 from one end side to the other end side, it is difficult to make the other end side have a narrow pitch, and the one end side is prevented from being excessively twisted. can be done. Therefore, both ends 2 and 3 can be narrowed more appropriately.

In addition, in order to control the rotation of the first rotating member 110 and the second rotating member 120 so as to achieve the twist pitch set by the pitch setting unit 143 in the second control, the wire An appropriate twist pitch can be set according to the types of the conductors 11 and insulators 12 of 10, the outer diameter of the electric wire 10, and the like.

Further, in order to fix the first position P1 and the second position P2 set by the position setting unit 144, an appropriate one end according to the type of the conductor 11 and the insulator 12 of the electric wire 10, the outer diameter of the electric wire 10, etc. It can be the length of the portion 2 and the other end portion 3 .

Further, according to the method of manufacturing the twisted pair wire 1 according to the first embodiment, the two electric wires 10 are twisted by rotating one end side and the other end side of the two electric wires 10 in mutually opposite directions, and then twisting the two electric wires 10 . After fixing the first position P1 and the second position P2, the two wires 10 are further twisted. For this reason, first, the two electric wires 10 are twisted as a whole, and then, with the first position P1 and the second position P2 fixed, by twisting one end side and the other end side, One end side of the first position P1 and the other end side of the second position P2 can be twisted without twisting up to the second position P2. In particular, since it is not a method of sequentially twisting the two wires 10 from one end side to the other end side, it is difficult to make the other end side have a narrow pitch, and the one end side is prevented from being excessively twisted. can do. Therefore, both ends 2 and 3 can be narrowed more appropriately.

Next, a second embodiment of the present invention will be described. The twisted pair manufacturing apparatus and manufacturing method according to the second embodiment are the same as those of the first embodiment, but partially different. Differences from the first embodiment will be described below.

FIG. 6 is a schematic configuration diagram showing a twisted pair wire manufacturing apparatus according to the second embodiment, (a) showing the overall configuration, and (b) showing a partial configuration of (a). In particular, FIG. 6(a) shows the state of the clamp 130 from above the wire 10, and FIG. 6(b) shows the state of the clamp 130 from the side of the wire 10. FIG.

As shown in FIGS. 6A and 6B, the manufacturing apparatus 100a according to the second embodiment includes

stoppers

150 and 160 on the outer sides of the first rotating member 110 and the second rotating member 120, respectively. there is The

stoppers

150 and 160 are for aligning the end positions by abutting the ends of the two electric wires 10, and when the terminals 5 are attached to the electric wires 10, the terminals 5 are abutted. is. Furthermore, the

stoppers

150 and 160 rotate together with the first rotating member 110 and the second rotating member 120 in the second embodiment. In particular, when the terminals 5 are attached to the ends of the two electric wires 10 and the

stoppers

150 and 160 are stopped while the first rotating member 110 and the second rotating member 120 are rotating, the terminals 5 are , 160, the

stoppers

150, 160 are scratched. However, since the

stoppers

150 and 160 rotate together with the first rotating member 110 and the second rotating member 120, the

stoppers

150 and 160 are prevented from being scratched. Further, the first rotating member 110 and the second rotating member 120 according to the second embodiment are freely rotatable clockwise and counterclockwise (rotatable in both directions).

In the second embodiment, the clamp 130 sandwiches and clamps the electric wire 10 as in the first embodiment. In the second embodiment, the surface of the clamp 130 that contacts the electric wire 10 is made of a material such as urethane. Such a clamp 130 is movable in three positions. The three positions are an initial position Pi, a fixed position Pf and an intermediate position Pm.

The initial position Pi is a position away from the installation location L of the two wires 10 to the extent that the clamp 130 does not get in the way when the two wires 10 are attached to the first rotating member 110 and the second rotating member 120, etc. be. As shown in FIGS. 6(a) and 6(b), the initial position Pi is displaced from the installation location L of the electric wire 10 when viewed from above, and is also displaced in the height direction when viewed from the side. position.

The fixed position Pf is a position where the first position P1 and the second position P2 of the two electric wires 10 are fixed. The intermediate position Pm is a position intermediate between the initial position Pi and the fixed position Pf. As shown in FIGS. 6(a) and 6(b), the intermediate position Pm is positioned so as to overlap the installation location L of the electric wire 10 when viewed from above, but when viewed from the side, the intermediate position Pm is at a higher position. It is a position shifted in the horizontal direction. This intermediate position Pm is preferably positioned as close to the two electric wires 10 as possible.

Furthermore, in the second embodiment, the first control unit 141 moves the clamp 130 from the initial position Pi to the intermediate position Pm when executing the first control. Therefore, when executing the second control, the second control unit 142 moves the clamp 130 existing at the intermediate position Pm to the fixed position Pf.

Furthermore, in the second embodiment, the second control section 142 includes a narrow pitch control section 142a and an untwisting control section 142b. The narrow pitch control section 142a performs the same control as the second control section 142 shown in the first embodiment. That is, the narrow-pitch control unit 142a fixes the two electric wires 10 to the first rotating member 110 and the second rotating member 120, and fixes the first position P1 and the second position P2 by the clamp 130, and performs the first rotation. Narrow pitch control is performed to rotate the member 110 and the second rotating member 120 in opposite directions. The untwisting control section 142b executes the untwisting control after executing the narrow pitch control. The untwisting control is performed by rotating the first rotating member 110 and the second rotating member 120 in the direction opposite to the narrow pitch control while maintaining the state of the narrow pitch control (that is, in the same state), and by increasing the rotation amount of the narrow pitch control. It rotates by a rotation amount smaller than . That is, in the second embodiment, the second control untwists the one end 2 and the other end 3, which are narrowed by the narrow pitch control, by the untwisting control.

FIG. 7 is a flow chart showing a method for manufacturing the twisted pair wire 1 according to the second embodiment. In addition, in FIG. 7, the same reference numerals are given to the same processes as those shown in FIG.

As shown in FIG. 7, both ends of two electric wires 10 are abutted against stoppers 150 and 160 (S11). Next, both ends of the two electric wires 10 are chucked by the first rotating member 110 and the second rotating member 120 (S1). Next, the first controller 141 rotates the first rotating member 110 and the second rotating member 120 in opposite directions (S2).

After that, the control unit 140 moves the clamp 130 to the intermediate position Pm (S12). That is, in the present embodiment, the control section 140 moves the clamp 130 to the intermediate position Pm during the execution of twisting at the normal pitch. Next, the first control section 141 determines whether the normal pitch has been completed (S3). If the normal pitch has not been completed (S3: NO), the process proceeds to step S2.

When the normal pitch is completed (S3: YES), the controller 140 once stops the rotation of the first rotating member 110 and the second rotating member 120, and moves the clamp 130 to the fixed position Pf (S13). Then, the controller 140 clamps the first position P1 and the second position P2 (S4).

After that, when the narrow pitch is completed through the processes of steps S5 and S6 by the narrow pitch control section 142a, the untwisting control section 142b rotates the first rotating member 110 and the second rotating member 120 in the direction opposite to the rotating direction of step S5. Rotate by a predetermined rotation amount (S14). The predetermined amount of rotation here is an amount of rotation smaller than the amount of rotation executed in steps S5 and S6. By this treatment, the one end portion 2 and the other end portion 3 are untwisted.

After that, the untwisting control section 142b determines whether or not the one end portion 2 and the other end portion 3 have a predetermined target pitch due to the untwisting (S15). When the one end 2 and the other end 3 do not have the predetermined pitch (S15: NO), the process proceeds to step S14.

On the other hand, when the one end 2 and the other end 3 have the predetermined pitch (S15: YES), the control unit 140 releases the clamp 130 and moves the clamp 130 to the initial position Pi (S16). After that, the controller 140 releases the chuck (S8), and the process shown in FIG. 7 ends.

In this manner, according to the manufacturing apparatus 100a and the manufacturing method of the twisted pair wire 1 according to the second embodiment, the one end portion 2 and the other end portion 3 are more appropriately narrowed in pitch, as in the first embodiment. be able to. In addition, in order to control the rotation of the first rotating member 110 and the second rotating member 120 so as to achieve the twist pitch set by the pitch setting unit 143 in the second control, the wire An appropriate twist pitch can be set according to the types of the conductors 11 and insulators 12 of 10, the outer diameter of the electric wire 10, and the like. Furthermore, in order to fix the first position P1 and the second position P2 set by the position setting unit 144, an appropriate one end according to the type of the conductor 11 and the insulator 12 of the electric wire 10, the outer diameter of the electric wire 10, etc. It can be the length of the portion 2 and the other end portion 3 .

Furthermore, according to the second embodiment, since the untwisting control is executed in the second control, the untwisting can be performed on the portion that has been narrowed by the narrow pitch control. As a result, for example, while the final pitch of the one end portion 2 and the other end portion 3 is optimized, the narrow pitch control results in excessive twisting, which promotes plastic deformation of the conductor 11 and generates untwisting force. can be suppressed.

Further, since the clamp 130 is moved from the initial position Pi to the intermediate position Pm in the first control, the clamp 130 may be moved from the intermediate position Pm to the fixed position Pf when performing the second control. The time required for moving the clamp 130 can be shortened as compared with the case of moving from Pi to the fixed position Pf. Therefore, the production time of the twisted pair wire 1 can be shortened.

As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above embodiments, and may be modified without departing from the scope of the present invention. You may combine well-known techniques.

For example, in the above embodiment, the twisted pair 1 is clamped at the first position P1 and the second position P2 according to the length from the twisted ends E1 and E2 set by the position setting unit 144. However, the position to be clamped may be a fixed position, or the position to be clamped may be changed manually.

Furthermore, in the above-described embodiment, the twisted pair wire 1 has the pitch of the one end 2 and the other end 3 set by the pitch setting unit 143, but is not limited to this, and may be a fixed pitch. .

Furthermore, the pitch setting section 143 may be configured to be able to set not only the pitches of the one end portion 2 and the other end portion 3 but also the pitch of the intermediate portion 4 .

In the above embodiment, the twist pitch of the intermediate portion 4 is 40 mm.

In particular, the electric wire 10 in which the insulator 12 is made of PE has a hard insulator 12 and a strong untwisting force. On the other hand, in the electric wire 10 whose insulator 12 is PVC, even if it is twisted by the same amount, the plastic deformation advances and returns with a weak force. Furthermore, the larger the wire size, the greater the damage to the conductor 11 and the insulator 12 when twisted. Taking these into consideration, it is preferable to do the following, for example. When the insulator 12 is PVC and the wire size is 0.3436 mm ² and 1.247 mm ² in the calculated cross-sectional area, the pitch between the one end 2 and the other end 3 is 10 mm and the length is 20 mm. On the other hand, when the insulator 12 is PE and the wire size is 0.382 mm ² in the calculated cross-sectional area, the pitch between the one end 2 and the other end 3 is 8 mm and the length is 30 mm. Furthermore, when the insulator 12 is PE and the wire size is a calculated cross-sectional area of 1.282 mm ² , the pitch between the one end 2 and the other end 3 is 10 mm and the length is 40 mm.

In addition, in the second embodiment, the initial position Pi is deviated from the installation location L of the electric wire 10 when viewed from above and also deviated in the height direction when viewed from the side. It is not limited to this. FIG. 8 is a partial configuration diagram showing a modification of the manufacturing apparatus 100a for the twisted pair wire 1 according to the second embodiment. As shown in FIG. 8, the initial position Pi does not deviate from the installation location L of the electric wire 10 when viewed from above, and is positioned further away from the electric wire 10 in the height direction than the intermediate position Pm. may be In this case, the moving direction of the clamp 130 is the same from the initial position Pi through the intermediate position Pm to the fixed position Pf, which contributes to the simplification of the configuration of the manufacturing apparatus 100a.

Furthermore, the present invention may be a combination of technologies of the embodiments. In this case, the twisted pair

wire manufacturing apparatuses

100 and 100 a may determine whether or not to perform untwisting control according to the type of the electric wire 10 . This is because the manufacturing process can be omitted for the electric wire 10 that does not require untwisting, which contributes to shortening the cycle time.

Here, the features of the embodiments of the twisted pair wire manufacturing apparatus and the twisted pair wire manufacturing method according to the present invention described above are briefly summarized in [1] to [6] below.
[1]
a first rotating member (110) that fixes one end side of two electric wires (10) arranged side by side and is rotatable for twisting the two electric wires (10);
a rotatable second rotating member (120) for fixing the other ends of the two electric wires (10) and twisting the two electric wires (10);
A first position (P1) located on the other end side by a first predetermined length from the position of the twisted end (E1) on the one end side of the two electric wires (10), and the position of the two electric wires (10) a fixing member (130) for fixing a second position (P2) on one end side by a second predetermined length from the position of the twisted end (E2) on the other end side;
a control means (140) for controlling the operations of the first rotating member (110), the second rotating member (120), and the fixed member (130);
The control means (140) fixes the two electric wires (10) to the first rotating member (110) and the second rotating member (120) and moves the two wires (10) to the first position (P1) by the fixing member (130). ) and the second position (P2) are not fixed; The two electric wires (10) are fixed to the first rotating member (110) and the second rotating member (120), and the fixing member (130) moves between the first position (P1) and the second position (P2). and a second control (142) for rotating the first rotating member (110) and the second rotating member (120) in the opposite directions while fixing the twisted pair wire manufacturing apparatus (100 , 100a).
[2]
Further comprising pitch setting means (143) for setting a twist pitch on one end side of the first position (P1) and on the other end side of the second position (P2),
The control means (140) controls the first rotating member (110) and the second rotating member (120) so as to achieve the twist pitch set by the pitch setting means (143) in the second control (142). ), the twisted pair wire manufacturing apparatus (100, 100a) according to [1].
[3]
Further comprising position setting means (144) for setting the first position (P1) and the second position (P2) fixed by the fixing member (130),
In the second control (142), the control means (140) sets the first position (P1) and the second position (P2) set by the position setting means (144) to the fixed member (130). The twisted pair wire manufacturing apparatus (100, 100a) according to any one of [1] or [2].
[4]
In the second control (142), the control means (140) fixes the two electric wires (10) to the first rotating member (110) and the second rotating member (120), and 130), the first rotating member (110) and the second rotating member (120) are rotated in the opposite directions while the first position (P1) and the second position (P2) are fixed. In the same state as the pitch control (142a), each of the first rotating member (110) and the second rotating member (120) is rotated in the direction opposite to that during the narrow pitch control (142a) and in the narrow pitch control ( 142a) Twisted pair wire manufacturing apparatus (100, 100a) according to [1], which executes untwisting control (142b) to rotate by an amount smaller than the amount of rotation at time.
[5]
The fixing member (130) includes an initial position (Pi), a fixing position (Pf) for fixing the first position (P1) and the second position (P2), and an initial position (Pi) and the fixing position (Pf). It is movable at an intermediate position (Pm) that is intermediate to the position (Pf),
The control means (140) moves the fixing member (130) from the initial position (Pi) to the intermediate position (Pm) in the first control (141), and the fixing member (130) in the second control (142). moving the member (130) from the intermediate position (Pm) to the fixed position (Pf) to fix the first position (P1) and the second position (P2) by the fixing member (130) [1] 2. A twisted pair wire manufacturing apparatus (100, 100a) according to 1.
[6]
a first fixing step of fixing both end sides of two wires (10) arranged in a straight line;
A first control step of twisting the two electric wires (10) by rotating one end side and the other end side of the two electric wires (10) fixed at both ends in the first fixing step in mutually opposite directions. and,
A first position (P1) located on the other end side by a first predetermined length from the twist end on one end side of the two electric wires (10) twisted in the first control step, and the two electric wires (10 a second fixing step of fixing a second position (P2) on one end side by a second predetermined length from the twisted end on the other end side of ) with a fixing member (130);
In the second fixing step, one end side and the other end side of the two electric wires (10) fixed at the first position (P1) and the second position (P2) are rotated in the opposite directions. a second control step of further twisting the two electric wires (10) by
A method for manufacturing a twisted pair wire having

Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

This application is based on a Japanese patent application (Japanese Patent Application 2022-023992) filed on February 18, 2022 and a Japanese patent application (Japanese Patent Application 2023-011508) filed on January 30, 2023. Incorporated here as a reference.

According to the present invention, it is possible to provide a twisted pair wire manufacturing apparatus and manufacturing method capable of more appropriately narrowing the pitch at both ends. The present invention having this effect is useful for a twisted pair wire manufacturing apparatus and manufacturing method.

Reference Signs List 1: Twisted pair wire 10:

Electric wires

100, 100a: Twisted pair wire manufacturing apparatus 110: First rotating member 120: Second rotating member 130: Clamp (fixing member)
140: Control unit (control means)
141: first control section 142: second control section 142a: narrow pitch control section 142b: untwisting control section 143: pitch setting section (pitch setting means)
144: Position setting unit (position setting means)
E1: first twisted end E2: second twisted end L: installation location P1: first position P2: second position Pf: fixed position Pi: initial position Pm: intermediate position

Claims

a first rotating member that fixes one end side of two electric wires arranged side by side and is rotatable for twisting the two electric wires together;
a second rotating member that fixes the other ends of the two electric wires and is rotatable for twisting the two electric wires;
A first position on the other end side by a first predetermined length from the position of the twisted end on the one end side of the two electric wires, and a first position from the position of the twisted end on the other end side of the two electric wires. 2 a fixing member that fixes a second position on one end side for a predetermined length;
a control means for controlling the operations of the first rotating member, the second rotating member, and the fixed member;
The control means fixes the two electric wires to the first rotating member and the second rotating member, and performs the first rotation in a state in which the first position and the second position are not fixed by the fixing member. a first control for rotating the member and the second rotating member in directions opposite to each other; fixing the two electric wires to the first rotating member and the second rotating member; and a second control for rotating the first rotating member and the second rotating member in the opposite directions with the two positions fixed. A twisted pair manufacturing apparatus.
Further comprising pitch setting means for setting a twist pitch on one end side of the first position and on the other end side of the second position,
The twisted pair wire according to claim 1, wherein the control means controls the rotation of the first rotating member and the second rotating member so as to achieve the twist pitch set by the pitch setting means in the second control. manufacturing equipment.
further comprising position setting means for setting the first position and the second position fixed by the fixing member;
3. The twist pair according to claim 1, wherein in the second control, the control means causes the fixing member to fix the first position and the second position set by the position setting means. Line manufacturing equipment.
In the second control, the control means fixes the two electric wires to the first rotating member and the second rotating member, and fixes the first position and the second position by the fixing member. Narrow-pitch control for rotating the first rotating member and the second rotating member in the directions opposite to each other, and in the same state, rotating the first rotating member and the second rotating member opposite to the narrow-pitch control. The apparatus for manufacturing a twisted pair wire according to claim 1, wherein untwisting control is performed to rotate in a direction and by an amount of rotation smaller than the amount of rotation during the narrow pitch control.
The fixing member is movable between an initial position, a fixing position fixing the first position and the second position, and an intermediate position between the initial position and the fixing position,
The control means moves the fixing member from the initial position to the intermediate position in the first control, moves the fixing member from the intermediate position to the fixing position in the second control, and causes the fixing member to move the fixing member to the fixing position. The twisted pair wire manufacturing apparatus according to claim 1, wherein the first position and the second position are fixed.
a first fixing step of fixing both end sides of the two wires arranged in a straight line;
a first control step of twisting the two electric wires by rotating one end side and the other end side of the two electric wires, both ends of which are fixed in the first fixing step, in opposite directions to each other;
A first position that is a first predetermined length from the twisted end on the one end side of the two electric wires that are twisted in the first control step to the other end side, and from the twisted end on the other end side of the two electric wires A second fixing step of fixing a second position on the one end side by a second predetermined length with a fixing member;
In the second fixing step, one end side and the other end side of the two electric wires fixed at the first position and the second position are rotated in the opposite directions to each other to further twist the two electric wires. a second control step,
A method for manufacturing a twisted pair wire having