JP5875150B2 - Twisted wire manufacturing apparatus and twisted wire manufacturing method - Google Patents

Description

  The present invention relates to a twisted wire manufacturing apparatus for manufacturing a twisted wire by twisting a plurality of electric wires, and a manufacturing method thereof.

  A twisted pair wire generally used as a twisted wire is an electric wire that can suppress generation of electromagnetic waves or absorb electromagnetic waves, and is manufactured by twisting a plurality of wires (for example, two wires). ing. Such a twisted pair wire is manufactured by, for example, the manufacturing method shown in FIG. 4 or manufactured using the manufacturing apparatus 100 shown in FIG. 5 (see, for example, Patent Document 1). In the manufacturing method shown in FIG. 4, one end (the left end in the figure) and the other end (the right end in the figure) of each of the two electric wires W are individually held, By rotating (revolving) at least one of the one end side and the other end side of W together, the two electric wires W are brought into close contact with each other and twisted together.

  On the other hand, the manufacturing apparatus 100 shown in FIG. 5 holds one end (the left end in the figure) of the two electric wires W, and rotates each electric wire W around the axis of the electric wire W. The plurality of (two) first rotation holding portions 101 for twisting each electric wire W and the other end portion (the right end portion in the figure) of each electric wire W are bundled and held, and the electric wires W are twisted. The second rotation holding unit 102 that rotates the other end side in a direction to eliminate the twist, and is arranged between the first rotation holding unit 101 and the second rotation holding unit 102, and from the second rotation holding unit 102 side And a moving member 103 that slides toward the first rotation holding unit 101 side. The manufacturing apparatus 100 rotates (revolves) the plurality of first rotation holding units 101, rotates (revolves) the second rotation holding unit 102, and moves the moving member 103 toward the first rotation holding unit 101. By doing so, the plurality of electric wires W are twisted together between the second rotation holding unit 102 and the moving member 103.

JP 2009-231157 A

  However, when the electric wires W are twisted by the conventional manufacturing method described above, the electric wires W are twisted (elongated in the circumferential direction) due to friction between the electric wires W, and such twists remain even after the twisting. For this reason, the twist of the stranded wire may return. On the other hand, when manufacturing a twisted wire using the conventional manufacturing apparatus 100, the rotation of the first rotation holding unit 101 and the second rotation holding unit 102 is synchronized and the movement of the moving member 103 is also synchronized. Although the twisting of the electric wire W after twisting can be suppressed, there is a problem that the control for synchronizing the respective parts becomes complicated and the structure of the manufacturing apparatus 100 is complicated and large, resulting in an increase in cost.

  Accordingly, the present invention provides a twisted wire manufacturing apparatus and a twisted wire manufacturing method capable of reducing the size and cost of the device and suppressing the twist of the manufactured twisted wire from returning. Objective.

In order to achieve the above object, the stranded wire manufacturing apparatus according to claim 1 is a stranded wire manufacturing apparatus for manufacturing a stranded wire by twisting a plurality of electric wires, and one of the plurality of electric wires. A holding member on one side for holding the terminal portions on the side together, a plurality of rotating holding members for holding the other terminal portions on the other side of the plurality of electric wires and rotating the electric wires around their respective axis cores; A drive unit that rotates the plurality of rotation holding members, and the one side holding member is rotatable in a rotatable state around the rotation axis along the other side from the one side and restricts the rotation. In the state in which both of the rotation restricted state are provided so as to be switchable, and the rotation is restricted by holding the terminal portion on one side of the electric wire by the holding member on the one side in the rotation restricted state. Driven by It said rotary holding member by the plurality of electric wires from each twist is rotated by a predetermined rotation speed, the one of the one side of the holding member is gripped by the holding member is switched to the rotatable state of the side end portion releasing the rotational restriction, in Rukoto it was naturally rotating the holding member, and wherein the stranding said plurality of wires to each other.

  The twisted wire manufacturing device according to claim 2 is the twisted wire manufacturing device according to claim 1, wherein the plurality of rotation holding members are directed from the other end portion toward the one end portion. The plurality of electric wires are respectively rotated and twisted in the same direction, either clockwise or counterclockwise.

  The twisted wire manufacturing apparatus according to claim 3 is the twisted wire manufacturing apparatus according to claim 1 or 2, further comprising a long cradle extending substantially horizontally, and one side in the longitudinal direction of the cradle. The plurality of rotation holding members are provided on the other side in the longitudinal direction of the cradle, and the plurality of rotation holding members are provided adjacent to each other and extend from the holding member. A terminal portion on the other side of the electric wire is gripped with a predetermined distance from each other.

Twisted wire manufacturing method according to claim 4 is the twisted wire manufacturing method for manufacturing a twisted wire in which a plurality of electric wires are Awa twist of the plurality of electric wires in the twisted wire One set is composed of one first electric wire portion and the other second electric wire portion obtained by folding one continuous electric wire at the folding portion, and the folded portion is held by a holding member in a rotation restricted state. A twisting process in which the terminal side of the first electric wire part and the terminal side of the second electric wire part are rotated by a predetermined number of rotations and twisted in a state in which the rotation is held and regulated, and the twisting process Thereafter, the first electric wire portion and the second electric wire portion are switched by switching the holding member to a rotatable state, releasing the rotation restriction of the folded portion gripped by the holding member, and naturally rotating the holding member. Twist that twists together Characterized by comprising the Align step.

  According to the invention described in claim 1, each electric wire is rotated (rotated) and twisted in a state where the rotation of the one end portion of the electric wire is restricted, and then the rotation restriction of the one end portion is restricted. By releasing, the terminal part of one side will rotate collectively (revolve) in the direction which cancels the twist of each electric wire, and several electric wires are twisted together. At this time, since each electric wire rotates in a direction to eliminate each twist, it is difficult for the elongation and stress due to the twist to remain, and it is possible to suppress the twisting of the twisted wires from returning. In addition, since it is not necessary to rotationally drive the holding member that holds one side of the electric wire, the driving means on one side can be omitted, and the rotation speed, the rotation speed, etc. are synchronized on one side and the other side of the electric wire Since there is no need to use a moving member in a conventional apparatus, the apparatus structure and drive control can be simplified and the apparatus can be configured at a relatively low cost.

Incidentally, organic in the present invention, the grip and rotation means for rotating (natural rotation) while gripped with The one side of the holding member for gripping collectively terminal portion of one side of the wire, gripping the terminal portion of the conductive wire to that it has been configured. Moreover, as the terminal part of one side of the electric wire which the holding member of one side hold | grips collectively, the individual terminal part from which the some electric wire was each cut | disconnected may be sufficient, and one electric wire is folded and two pieces The folded portion may be a terminal portion on one side, and moreover, a plurality of folded portions of a plurality of bundles of one electric wire folded at the folded portion may be used as the terminal portion on one side.

  According to the invention described in claim 2, by rotating and twisting the plurality of electric wires in the same direction by the plurality of holding members, the rotation direction for eliminating the twist becomes the same, and one side of the electric wires When the rotation restriction of the terminal portion is released, the wires can be twisted together by a force that eliminates the twisting of the wires themselves without requiring power.

  According to the invention described in claim 3, the holding member is provided on one side of the cradle and the plurality of rotation holding members are provided adjacent to each other on the other side, and the other side of the plurality of electric wires is provided by these rotation holding members. By gripping the terminal portions at a predetermined distance from each other, it is possible to prevent the wires from being entangled with each other when the wires are rotated (rotated) and twisted.

  According to the invention described in claim 4, after the first electric wire portion and the second electric wire portion are twisted in the twisting step, the rotation restriction of the folded portion is released in the twisting step, and the first electric wire portion and the second electric wire portion are released. By twisting the electric wire portion and the second electric wire portion together, the elongation and stress due to twisting hardly remain in the first and second electric wire portions as described above. And after twisting together a 1st electric wire part and a 2nd electric wire part, manufacturing a twisted wire with few untwisting by cut | disconnecting a 1st electric wire part and a 2nd electric wire part in the vicinity of a folding | turning part. Can do.

It is a perspective view which shows the twisted wire manufacturing apparatus which concerns on one embodiment of this invention. It is a perspective view which expands and shows the principal part of the said twisted wire manufacturing apparatus. It is operation | movement explanatory drawing of the said twisted wire manufacturing apparatus. It is the schematic which shows the manufacturing method of the twisted wire which concerns on a prior art. It is operation | movement explanatory drawing of the twisted wire manufacturing apparatus which concerns on the prior art different from FIG.

  A twisted wire manufacturing apparatus according to an embodiment of the present invention will be described with reference to FIGS. The twisted wire manufacturing apparatus 1 manufactures a twisted wire in which a plurality of electric wires 2 are twisted, and in this embodiment, an apparatus for manufacturing a twisted pair wire that is a twisted wire of two twists is illustrated. To explain. In addition, as a stranded wire manufactured by the manufacturing apparatus of this invention, the multi-core cable which twisted not less than the two electric wires 2 but twisted three or more electric wires 2 may be sufficient.

  As shown in FIG. 1, the twisted wire manufacturing apparatus 1 is provided with a long pedestal 3 that extends substantially horizontally and one side in the longitudinal direction of the cradle 3 (lower right side in FIG. 1). A first holding portion 4 that holds the terminal portion on one side of the wire 2 and a second holding portion that is provided on the other longitudinal side of the cradle 3 (upper left side in FIG. 1) and holds the terminal portion on the other side of the electric wire 2. 5, a drive unit 6 for driving the second holding unit 5, and an operation unit 7 provided in the vicinity of the first holding unit 4 for driving the device 1. Yes.

  The electric wire 2 is a first electric wire portion 2B and a second electric wire portion 2C extending from the folded portion 2A toward the second holding portion 5 by folding back one continuous electric wire at the folding portion 2A on the first holding portion 4 side. It consists of and. That is, the folded portion 2A as a terminal portion on one side of the first electric wire portion 2B and the second electric wire portion 2C is held by the first holding portion 4, and each of the other sides of the first electric wire portion 2B and the second electric wire portion 2C. The terminal units 2D and 2E are held by the second holding unit 5.

  The cradle 3 includes a table 31 provided at a height at which an operator can easily work to set the electric wire 2, and a cover 32 provided at an end of the table 31 and covering the second holding unit 5. The table 31 is formed in an overall concave groove shape that can accept the electric wire 2 as a material and a twisted wire as a product, and the electric wire 2 extended on the table 31 is bent to form the first holding portion 4 and the second holding portion 4. 2 The work to be held by the holding unit 5 can be performed. The cover 32 is rotatably supported by the table 31, and is configured to be opened and closed from a state of covering the second holding unit 5 to a state in which the operator can operate the second holding unit 5 by opening upward. Yes.

  As shown in FIG. 2, the first holding unit 4 includes a base plate 41 that is fixed to the cradle 3, a shaft support 42 that is fixed to the base plate 41, and the shaft support 42 that can rotate and rotate. A first holding member 43 as a holding member on one side supported in a restrictable manner. The first holding member 43 is supported by the shaft support portion 42 and extends in the longitudinal direction of the cradle 3, a rotating body 45 fixed to the rotating shaft 44, and a tip side (second side) of the rotating body 45. A grip receiving portion 46 provided on the holding portion 5 side), and a gripping portion 47 provided so as to be movable forward and backward toward the grip receiving portion 46 and capable of gripping the folded portion 2A of the electric wire 2 between the grip receiving portion 46 and The gripping operation lever 48 that moves the gripping portion 47 forward and backward with respect to the rotating body 45 is configured and functions as a gripping rotation means. Such a first holding member 43 has a rotation enabling state that is rotatable about the rotation shaft 44 with respect to the shaft support portion 42 by a switching operation of a rotation restriction portion (not shown), and a rotation restriction state that restricts this rotation. Both states are configured to be switchable.

  The second holding part 5 is capable of rotating and restricting the rotation of the base plate 51 fixed to the cradle 3, the pair of shaft support parts 52 fixed to the base plate 51, and the pair of shaft support parts 52. And a pair of second holding members 53 as supported rotation holding members. The pair of second holding members 53 are configured in substantially the same manner as the first holding member 43, that is, a rotation shaft 54 that is supported by the shaft support 52 and extends in the longitudinal direction of the cradle 3, and the rotation shaft 54. A fixed rotating body 55, a grip receiving part 56 provided on the distal end side (first holding part 4 side) of the rotating body 55, and a terminal of the electric wire 2 provided so as to be movable forward and backward toward the grip receiving part 56. A gripping portion 57 capable of gripping the portions 2D and 2E between the grip receiving portion 56 and a gripping operation lever 58 for moving the gripping portion 57 forward and backward with respect to the rotating body 55 are configured.

  The drive unit 6 is provided at an end portion on the other side in the longitudinal direction of the cradle 3 and sends an electric power and a control signal, a motor 62 driven by the electric power and the control signal from the electric component 61, and this A first gear 63 connected to the motor 62 and the rotation shaft 54 of one second holding member 53; a second gear 64 connected to the rotation shaft 54 of the other second holding member 53; And a toothed belt 65 wound around the second gears 63 and 64. Such a drive unit 6 rotationally drives the first gear 63 and the one second holding member 53 by the rotation of the motor 62, and the second gear 64 and the other gear from the first gear 63 via the toothed belt 65. The second holding member 53 is driven to rotate, that is, the one and the other second holding members 53 are rotated at the same speed in the same direction in synchronization.

  The operation unit 7 includes two switches 71 and 72 provided on the base plate 41 of the first holding unit 4. The switch 71 is an operation switch. When the operator depresses the switch 71, a signal is sent to the drive unit 6, and the rotation of the motor 62 is started by a control signal from the electrical unit 61 that has received this signal. It is like that. On the other hand, the switch 72 is a stop switch. When the operator depresses the switch 72, a signal is sent to the drive unit 6, and the rotation of the motor 62 is stopped by a control signal from the electrical unit 61 that has received this signal. It has come to be. That is, the operator can drive the twisted wire manufacturing apparatus 1 on the side of the first holding unit 4 away from the second holding unit 5 and the driving unit 6.

  Next, the manufacturing method which manufactures a twisted wire using the twisted wire manufacturing apparatus 1 with reference also to FIG. 3 is demonstrated. First, the electric wire 2 turned back at the turn-up portion 2A is set on the table 31 by extending, and the turn-up portion 2A is arranged on the first holding portion 4 side, and each terminal portion of the first electric wire portion 2B and the second electric wire portion 2C. 2D and 2E are arranged on the second holding unit 5 side. Next, the gripping operation lever 48 of the first holding member 43 is operated to separate the gripping portion 47 from the gripping receiving portion 46, and the folded portion 2 </ b> A of the electric wire 2 is inserted into the gap between the gripping portion 47 and the gripping receiving portion 46. Thereafter, the grip operation lever 48 is operated to bring the grip portion 47 closer to the grip receiving portion 46, and the folded portion 2A is gripped between them. At this time, the first holding member 43 is placed in a rotation restricted state by the rotation restricting portion so that the first holding member 43 does not rotate around the rotation shaft 44.

  Further, the gripping operation lever 58 of one of the second holding members 53 is operated to separate the gripping portion 57 from the gripping receiving portion 56, and the terminal of the first electric wire portion 2 </ b> B is inserted into the gap between the gripping portion 57 and the gripping receiving portion 56. After the portion 2D is inserted, the grip operation lever 58 is operated to bring the grip portion 57 closer to the grip receiving portion 56, and the terminal portion 2D is gripped between them. Similarly, the terminal portion 2E of the second electric wire portion 2C is gripped between the grip portion 57 and the grip receiving portion 56 of the one second holding member 53. As described above, when the terminal portions 2D and 2E are gripped by the second holding member 53, the tensions of the first electric wire portion 2B and the second electric wire portion 2C are made substantially equal, and the first electric wire portion The slack is not generated in the portion 2B and the second electric wire portion 2C.

  Next, when the switch 71 of the operation unit 7 is pushed down by the operator, as shown in FIG. 3A, the rotation of the first holding member 43, that is, the rotation of the folded portion 2A of the electric wire 2 is restricted. In this state, the pair of second holding members 53 of the second holding portion 5 are synchronously rotated at the same speed in the same direction, whereby the first electric wire portion 2B and the second electric wire portion 2C are twisted in the same direction. Twisted (twisting process). Here, the direction in which the first electric wire portion 2B and the second electric wire portion 2C are twisted is from the second holding portion 5 toward the first holding portion 4 (from the other side to the one side, or each This means that the rotation direction is, for example, the same counterclockwise (or clockwise) direction from the terminal portions 2D and 2E toward the folded portion 2A. That is, when the single electric wire 2 is linearly extended without being folded, the first electric wire portion 2B and the second electric wire portion 2C are twisted in opposite directions across the position of the folded portion 2A. .

Next, after the first electric wire portion 2B and the second electric wire portion 2C are respectively twisted by the rotation of the pair of second holding members 53, when the switch 72 of the operation portion 7 is pushed down by the operator, the second holding member The rotation of 53 stops, and subsequently, the rotation restriction of the folded portion 2A of the electric wire 2 by the first holding member 43 is released. As the release of the rotation restriction, the rotation restriction of the folded portion 2A is released by switching the first holding member 43 to the rotatable state and rotating it around the rotation shaft 44. By releasing the rotation restriction of the folded portion 2A of the electric wire 2 in this way, the first electric wire portion 2B and the second electric wire portion 2C rotate in a direction to release each twist as shown in FIG. Thereby, the 1st electric wire part 2B and the 2nd electric wire part 2C are mutually twisted toward the terminal parts 2D and 2E side from the folding | returning part 2A side (twisting process).

  As described above, after twisting the first electric wire portion 2B and the second electric wire portion 2C, when it is determined that the twisting is insufficient, the folded portion 2A of the electric wire 2 is again held by the first holding member 43. After gripping and restricting rotation, the pair of second holding members 53 are rotated to twist the first electric wire portion 2B and the second electric wire portion 2C, and then the rotation restriction of the folded portion 2A is released to first. The electric wire portion 2B and the second electric wire portion 2C are further twisted together. And if the 1st electric wire part 2B and the 2nd electric wire part 2C are fully twisted together, holding | grip of the folding | returning part 2A by the 1st holding member 43 and holding | grip of terminal part 2D, 2E by a pair of 2nd holding member 53 will each be carried out. After releasing the twisted electric wire 2 and cutting the first electric wire portion 2B and the second electric wire portion 2C in the vicinity of the folded portion 2A, the production of the twisted wire is completed.

  According to the embodiment described above, the terminal portions 2D and 2E of the electric wire 2 are rotated by the pair of second holding members 53 in a state where the turn-up portion 2A of the electric wire 2 is restricted by the first holding member 43. By twisting the first electric wire portion 2B and the second electric wire portion 2C respectively and then releasing the rotation restriction of the folded portion 2A by the first holding member 43, the first electric wire portion 2B and the second electric wire portion 2C are Each of the restoring forces is naturally rotated and twisted in the direction of releasing the twist. And since the 1st electric wire part 2B and the 2nd electric wire part 2C are rotated and twisted until each twist is eliminated, in the electric wire 2 after being twisted, the elongation and stress by twist are hard to remain. It is possible to suppress the twisting of the twisted wire from returning. Moreover, since it is naturally twisted by the restoring force of the 1st electric wire part 2B and the 2nd electric wire part 2C, it is not necessary to rotate the folding | returning part 2A side and the terminal part 2D, 2E side, and it is complicated. Thus, the twisted wire manufacturing apparatus 1 can be provided which can be simplified and miniaturized and is relatively inexpensive without increasing the size, increasing the complexity of drive control, and the like.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

  For example, in the twisted wire manufacturing apparatus 1 of the embodiment described above, a case where a twisted pair wire is manufactured by twisting the first electric wire portion 2B and the second electric wire portion 2C of one electric wire 2 folded at the folded portion 2A will be described. However, the present invention is not limited to this, and terminal portions on one side of two or more electric wires are collectively held by the first holding member 43, and a plurality of second holding members corresponding to the number of electric wires are held on the other end portion. After each gripping at 53, two or more wires may be twisted together by the same procedure as described above. Further, the folded portions 2A of two or more folded wires 2 are collectively held by the first holding member 43, and the other end portions are respectively held by the plurality of second holding members 53, and then the same as described above. According to the procedure, the first electric wire portion 2B and the second electric wire portion 2C of these two or more electric wires 2 may be twisted together.

DESCRIPTION OF SYMBOLS 1 Twisted wire manufacturing apparatus 2 Electric wire 2A Folding part (terminal part of one side)
2B 1st electric wire part 2C 2nd electric wire part 2D, 2E A terminal part (terminal part of the other side)
3 cradle 4 first holding part 5 second holding part 6 driving part 43 first holding member (holding member)
53 Second holding member (rotating holding member)

Claims (4)

A twisted wire manufacturing apparatus for manufacturing a twisted wire by twisting a plurality of electric wires,
A holding member on one side that collectively holds the terminal portions on one side of the plurality of electric wires;
A plurality of rotation holding members that respectively grip the terminal portions on the other side of the plurality of electric wires and rotate each electric wire around its respective axis,
A drive unit that rotates the plurality of rotation holding members,
The holding member on the one side is provided so as to be able to switch between a rotatable state that is rotatable around the rotation axis along the other side from the one side and a rotation restricted state that restricts the rotation,
In a state where the one end of the electric wire is held by the one holding member in the rotation restricted state and the rotation is restricted, the plurality of electric wires are respectively rotated by the rotation holding member driven by the driving unit. Then, the holding member on one side is switched to a rotatable state, the rotation restriction of the terminal portion on the one side gripped by the holding member is released, and the holding member is rotated naturally. Thus, a twisted wire manufacturing apparatus characterized in that the plurality of electric wires are twisted together.   The plurality of rotation holding members rotate and twist the plurality of electric wires in the same direction, either clockwise or counterclockwise from the other end portion toward the one end portion. The twisted wire manufacturing apparatus according to claim 1, wherein An elongated pedestal extending substantially horizontally, wherein the holding member is provided on one side in the longitudinal direction of the cradle, and the plurality of rotation holding members are provided on the other side in the longitudinal direction of the cradle;
The plurality of rotation holding members are provided adjacent to each other, and grip the other end portions of the plurality of electric wires extending from the holding members at a predetermined interval from each other. Item 3. A twisted wire manufacturing apparatus according to Item 2. A twisted wire manufacturing method for manufacturing a twisted wire in which a plurality of electric wires are Awa twisted,
One set of the plurality of electric wires in the twisted wire is composed of one first electric wire portion and the other second electric wire portion obtained by folding one continuous electric wire at the folded portion,
In a state in which the folded portion is gripped by the holding member in the rotation restricted state and the rotation is restricted, the terminal side of the first electric wire part and the terminal side of the second electric wire part are respectively rotated by a predetermined number of rotations and twisted. The twisting process
After the twisting step, the holding member is switched to a rotatable state, the rotation restriction of the folded portion gripped by the holding member is released, and the holding member is naturally rotated, whereby the first electric wire portion and A twisting step of twisting the second electric wire portions together;
A method of manufacturing a stranded wire, comprising:

Images