JP2005071753A - Twist cable manufacturing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact twist cable manufacturing device capable of improving the working ratio of the device. <P>SOLUTION: The device is provided with a clamp part 54 which bundles and holds the left side part of a pair of cables W, three pieces of twist generators which clamps individually the right end part of the pair of cables W and twists the pair of cables clamped, and a clamp head which carries the position of each clamp part 54 alternately capable of switching over so that an unprocessed pair of cables W can be installed on the other clamp part 54, while the pair of cables are being twisted between one side clamp part 54 and each twist generator 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a twisted cable manufacturing apparatus.

The twisted cable manufacturing apparatus includes a plurality of clamp portions that bundle and hold one end portions of a plurality of wire pairs, and the other end of the wire pair that is provided for each clamp portion and is held by the corresponding clamp portion. And a plurality of twist generators for twisting the clamped wire pair. The twist generating unit is configured to rotate synchronously by a common driving unit.
JP 2001-60420 A

  In the configuration of the prior art, since it was necessary to simultaneously drive the wire pairs held by the plurality of clamp portions by the twist generating portion, the wire pairs were attached to the remaining clamp portion after the wire pairs were attached to one clamp portion. Until the device was installed, the twist generating unit could not be driven and the operating rate was low. Moreover, since the twist generation part was provided for each clamp part, there also existed a problem that an installation enlarged.

  This invention is made | formed in view of the said subject, and it aims at providing the compact twisted cable manufacturing apparatus which can improve the operation rate of an apparatus.

In order to solve the above-mentioned problem, the invention of claim 1 separately provides a clamp part that bundles and holds one end of a plurality of wire pairs and the other end of the wire pair that is held by the clamp part. A twist cable manufacturing apparatus comprising a plurality of twist generating portions that clamp and twist the clamped wire pair,
A plurality of the clamp parts are provided,
While the wire pair is twisted between one clamp part and the twist generating part, the position of each clamp part is supported so that it can be switched alternately so that the remaining wire pair can be mounted on the remaining clamp part. A clamp head is provided.

  2. The twisted cable manufacturing apparatus according to claim 1, wherein when the other end of the plurality of electric wire pairs held by one clamp part is clamped by one twist generating part, another clamp part is exposed to the operator side. It is preferable to further include a clamp head driving means for driving the clamp head.

  3. The twist cable manufacturing apparatus according to claim 1 or 2, further comprising a twist drive unit that rotationally drives the twist generation unit when all of the electric wire pairs whose one end is held by the clamp unit are clamped. Is preferred.

  According to the present invention, since a plurality of clamp portions are carried by the clamp head, a plurality of wire pairs are held with respect to one clamp portion and the twist generating portion, and while these wire pairs are twisted, The electric wire pair can be held against the remaining clamp part. Therefore, compared to the conventional device that cannot drive the twist generating part from the time when the wire pair is attached to one clamp part until the wire pair is attached to the remaining clamp part, the operating rate of the apparatus is reduced. Can be improved.

  Further, in the present invention, by providing at least one set of twist generating portions, the twist generating portions can be used in order by a plurality of clamp portions. That is, while twisting the wire pair between the one clamp part and the twist generating part, the one end part of the wire pair is held with respect to the remaining clamp part, and when the twist operation is completed. The other end portion of the electric wire pair can be held by the twist generating portion and the twisting operation can be started. Therefore, it can be set as a compact apparatus compared with the conventional apparatus which provides a twist generating part for every clamp part.

  According to the configuration including the clamp head driving means, one end portion of the plurality of wire pairs is held in one clamp portion, and one of the wire pairs is held in the twist generating portion among these wire pairs. Because another clamp part automatically displaces to the worker side, after each wire pair is held by the twist generating part, the worker moves again to the clamp part side, and the wire to be twisted next time The pair can be quickly held with respect to the clamp portion.

  According to the structure provided with the twist drive part, the twist operation | work of each said electric wire pair can be automatically started by clamping all the electric wire pairs between a clamp part and each twist generation | occurrence | production part.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing an overall configuration of a twisted cable manufacturing apparatus according to a preferred embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II of the twisted cable manufacturing apparatus of FIG.

  Referring to FIGS. 1 and 2, a twist cable manufacturing apparatus 1 includes a frame 10 that forms a substantially rectangular outline, and three twist generators (twist generators) fixed to one end side in the longitudinal direction of the frame 10. Generator 30) and a clamp unit 50 attached to the frame 10 at the other end in the longitudinal direction of the frame 10 so as to be relatively displaceable with the twist generator 30 facing the twist generator 30. The twist cable manufacturing apparatus 1 according to the present embodiment clamps one end portions of three pairs of electric wires to be twisted together on the clamp unit 50, and the other end portions of these electric wire pairs to each twist generator 30. By clamping individually (that is, by holding each wire pair radially from the clamp unit 50 toward the twist generator 30), the three pairs of wires are twisted simultaneously. In the following description, the longitudinal direction of the frame 10 is assumed to be the left-right direction, and the front side (front side) in FIG.

  The frame 10 includes a work plate 11 having a substantially rectangular shape in plan view, and three pairs of support columns 12 in the left-right direction that support the work plate 11. Of these columns 12, the three columns 12 on the rear side are each provided with an extension 11 a that extends to a position above the work plate 11. A pair of upper and lower slide rails 13 are horizontally mounted on the two extension portions 11 a arranged on the left side of the extension portions 11 a, and the clamp unit 50 is attached to the slide rails 13. On the upper slide rail 13, a scale portion M (see FIG. 5) for visually confirming the distance to the twist generator 30 is provided. In addition, a receiving plate 14 disposed below the slide rail 13 is provided on the work plate 11. The receiving plate 14 includes a mounting portion 14b that extends in the front-rear direction along the work plate 11, and an inclined portion 14a that goes upward as it goes rearward from the rear end portion of the mounting portion 14b. The receiving plate 14 configured in this manner moves the twisted cable dropped from the twist generator 30 and the clamp unit 50 to the front side along the inclined portion 14a and holds it on the mounting portion 14b. Yes.

  Corresponding to the middle part of the twisted cable held as described above, a bottom raising member 15 is disposed on the placement portion 14b (indicated by a two-dot chain line in FIG. 2). The bottom raising member 15 has an inclined portion 15a that extends downward from the slide rail 13 on the upper side, a bottom raised portion 15b that extends forward from the inclined portion 15a, and a lateral direction that is separated from the bottom raised portion 15b. And a pair of left and right leg plates 15c extending downward. As described above, the twist cable dropped from the twist generator 30 and the clamp unit 50 has its middle part placed on the bottom raising part 15b and both end parts thereof placed on the placement part 14b. Thus, the operator grasps the middle part of the twisted cable on the bottom raising portion 15b and conveys the twisted cable to the next process.

  A pair of front and rear saddle-shaped accommodation portions 16 are arranged at the front position on the receiving plate 14 along the left-right direction. Each of the bowl-shaped storage portions 16 is formed in a substantially semicircular cross section, and is arranged with its opening facing upward. Each bowl-like accommodation portion 16 individually accommodates a pair of electric wires to be twisted.

  On the other hand, a pair of left and right stays 17 are erected on the right front position on the work plate 11. The stay plate 17 and the extension portion 11a of the support column 12 support the fixing plate 18 in an inclined state so that the front side is lowered. On the fixed plate 18, three twist generators 30 are arranged in the front-rear direction.

  3 is a perspective view showing an appearance of the twist generator 30 of FIG. 1, FIG. 4 is a plan view showing the arrangement of the twist generator 30 of FIG. 1, and (a) is a state of being arranged in parallel, (B) has each shown the state rotated mutually inside. Since the three twist generators 30 have the same configuration, only one configuration will be described here.

  3 and 4, the twist generator 30 includes a clamp unit 31 that clamps the right end portion of the wire pair to be twisted, a rotation drive unit 32 that rotates the clamp unit 31, and the rotation drive. And a mounting portion 33 for fixing the portion 32 on the fixing plate 18.

  The clamp part 31 is a bifurcated metal member as a whole, and includes a clamp piece 35 for clamping the wire pair W and an attachment piece 34 facing the clamp piece 35. An air cylinder 36 is attached to the outer side of the attachment piece 34. The rod 36a of the air cylinder 36 passes through the attachment piece 34 so as to clamp / release the electric wire pair W with the clamp piece 35. A clamping plate 37 that clamps the wire pair W with the clamp piece 35 is fixed to the free end of the rod 36a. The right end portion of the clamp portion 31 is connected to the left end portion of the rotation shaft J1 of a motor (twist drive portion) (not shown) disposed in the rotation drive portion 32.

  The rotational drive unit 32 includes a motor (not shown) that rotationally drives the rotational shaft J1 and a storage box 38 that stores the motor. The motor is configured to twist the wire pair W clamped by the clamp portion 31 by rotating the rotation shaft J1 around an axis parallel to the left-right direction. The accommodation box 38 is a substantially rectangular box, and a switch S1 is attached to the upper surface thereof. The switch S1 is for extending the rod 36a of the air cylinder 36, that is, for clamping the electric wire pair W between the pinching plate 37 and the clamp piece 35. Such a rotation drive unit 32 is mounted on the mounting unit 33.

  The attachment portion 33 is a substantially rectangular plate member in plan view, and is attached on the fixed plate 18 so as to be rotatable around an axis J5 standing on the fixed plate 18. Further, the mounting portion 33 is formed with a groove 39 having a circular arc shape in a plan view for slidably receiving the support shaft J2 erected on the fixed plate 18. By this groove 39, the rotation stroke around the axis J5 of the fixed plate 18 is regulated. Therefore, when the length of the wire pair W clamped between the clamp unit 50 and the clamp portion 31 is relatively long, as shown in FIG. On the other hand, when the length of the wire pair W is relatively short, as shown in FIG. 4B, the front and rear mounting portions 33 are disposed toward the central mounting portion 33 side, It is possible to follow the radiation angle of the wire pair W clamped between the clamp unit 50 and the clamp part 31.

  5 is an enlarged perspective view showing the clamp unit 50 of FIG. 1, and FIG. 6 is a partially perspective view schematically showing the clamp unit 50 of FIG. 5 viewed from the left side.

  With reference to FIGS. 5 and 6, the clamp unit 50 includes an attachment member 51 attached to each slide rail 13, a rotary cylinder (clamp head driving means) 52 and an operation unit 55 fixed to the attachment member 51. A clamp head 53 rotatably connected to the rotary cylinder 52 and a pair of upper and lower clamp portions 54 extending rightward from the clamp head 53 are provided.

  The attachment member 51 is a channel-shaped member that opens downward. The attachment member 51 is configured to be movable in the left-right direction with respect to the slide rail 13 across the slide rails 13 from above. Specifically, a pair of left and right rollers 57 a are provided on the lower surface of the mounting member 51, and these rollers 57 a are in rolling contact with the slide rail 13. Further, the mounting member 51 is provided with a brake portion (not shown), and an operator can fix the mounting member 51 at an arbitrary position on the slide rail 13 by the brake portion. Further, a support plate 56 extending forward is fixed to the left end portion of the attachment member 51.

  The rotary cylinder 52 includes a cylinder main body 59 fixed to the support plate 56 and a rotation shaft 60 extending rightward from the cylinder main body 59. The rotation shaft 60 is configured to be rotatable around an axis parallel to the left-right direction with respect to the cylinder body 59, while the cylinder body 59 is configured so that the rotation shaft 60 can be rotated forward and backward within a range of 180 °. It is designed to rotate. A clamp head 53 is connected to the right end portion of the rotation shaft 60 and is configured to rotate the clamp head 53.

  The clamp head 53 includes a plate-like rotation plate 61 formed in a hexagonal shape in a side view, a pair of air cylinders 62 and a pulley portion 63 disposed on the left side surface of the rotation plate 61, and the rotation. A pair of upper and lower support plates 64 protruding from the right side surface of the moving plate 61 and a pair of upper and lower slide blocks 65 that are slidably attached to the support plates 64 in the left-right direction are provided.

  Among the air cylinders 62, one is arranged at the upper right of the rotating plate 61 in the left side view, and the other is arranged at the lower left of the rotating plate 61 in the left side view and is rotated by the stay 61a. It is fixed to the moving plate 61. Each of these air cylinders 62 includes a cylinder body 62a fixed to the rotating plate 61 and a rod 62b that can be expanded and contracted in the vertical direction with respect to the cylinder body 62a. Each pulley section 63 is disposed on the extension direction of each rod 62b and on the upper left and lower right of the rotating plate 61 in the left side view. That is, the air cylinder 62 and the pulley portion 63 are arranged at positions on the rotating plate 61 that are 180 ° points with respect to the swing center of the rotating shaft 60 of the rotary cylinder 52. Each pulley section 63 includes a pulley 63b that is rotatable about an axis J3 provided on a pair of left and right pulley bases 63a extending leftward from the rotating plate 61. These pulleys 63b are hung by midway portions of the wires Y connected to the tip portions of the rods 62b, and the tip portions of the wires Y pass through the through holes 61a penetrating the rotating plate 61 in the front-rear direction. It is pulled out to the right side of the rotating plate 61.

  Each of the support plates 64 is arranged with respect to the rotation plate 61 so that the respective positions are reversed to each other when the rotation plate 61 is rotated forward and reverse by the rotary cylinder 52 within a range of 180 °. Yes. Specifically, each support plate 64 extends to the right from the rotation plate 61 and is fixed to the rotation plate 61 in a state of opposing each other in the vertical direction. The support plates 64 are respectively formed with rails 64a that protrude in the vertical direction away from each other and extend in the horizontal direction. The rails 64a and the slide blocks 65 are connected to each other by LM guides, and the slide blocks 65 are slidable in the left-right direction in a state of being vertically positioned with respect to the support plates 64. It is attached. Each sliding block 65 includes a bolt 65b disposed along the front-rear direction. These bolts 65b are fixed rearward with respect to the upper sliding block 65, while being fixed forward with respect to the lower sliding block 65, and each through hole 61a of the rotating plate 61 is fixed. It is arranged at the right side of each. Further, the tip of the wire Y is fixed to each bolt 65. The air cylinder 62 connected to the base end portion of the wire Y is normally set so that each rod 62b is in a contracted state. In this state, each sliding block 65 is supported by each support block. It is maintained in a state of being pulled leftward with respect to the plate 64. On the other hand, when a force for displacing each sliding block 65 in the right direction is applied to the support plate 64, each sliding block 65 resists the driving force of the air cylinder 62 that contracts each rod 62b. That is, each rod 62b is extended and displaced to the right with respect to each support plate 64. The clamp portion 54 is attached to the right side surface of the sliding blocks 65.

  Each clamp portion 54 is a bifurcated metal member as a whole, and includes a clamp piece 68 for clamping the wire pair W and an attachment piece 67 facing the clamp piece 68. An air cylinder 69 is attached to the outer side of the attachment piece 67. The rod 69a of the air cylinder 69 passes through the attachment piece 67 so as to clamp / release the wire pair W with the clamp piece 68. A clamping plate 70 that clamps the wire pair W with the clamp piece 68 is fixed to the free end of the rod 69a. In addition, each clamp part 54 is a rocking | swiveling center (axis line) of the said rotary cylinder 52 so that the clamp part 54 in an upper position and a lower position may be displaced to the same position for every forward / reverse rotation by the said rotary cylinder 52. Are arranged at positions on the rotating plate 61 that are point-symmetrical with respect to the angle of 180 °. Specifically, in the clamp portion 54 in the upper position, a mounting piece 67 is disposed on the upper side thereof, and an air cylinder 69 is disposed on the mounting piece 67, while in the clamp portion 54 on the lower side, the lower portion thereof. A mounting piece 67 is disposed on the side, and an air cylinder 69 is disposed on the mounting piece 67.

  On the other hand, an operation portion 55 is fixed to the left side surface of the rotating plate 61. The operation unit 55 includes a casing 55a and three operation buttons S2, S3, and S4 that protrude from the casing 55a. The operation button S2 is a button for starting driving of the air cylinder 69 of the clamp portion 54 located above, that is, holding the wire pair W to be twisted by the clamp portion 54 located above. The operation button S3 is a button for starting the twisted cable manufacturing apparatus 1. The operation button S4 is a button for making an emergency stop of the twisted cable manufacturing apparatus 1.

  As described above, the clamp unit 50 rotates each clamp portion 54 between the upper position and the lower position by the rotational drive of the rotary cylinder 52 that rotates the clamp head 53 forward and backward at a swing angle of 180 °. It is supposed to let you. In the present embodiment, the operator is positioned and works in front of the twisted cable manufacturing apparatus 1, so that the clamp unit 54 positioned above can be used to clamp the wire pair W. It will be arrange | positioned in the mounting position which faces the side. On the other hand, the clamp portion 54 positioned below is disposed so as to face the center one of the twist generators 30 in the left-right direction, and is clamped between the twist generators 30. It is arrange | positioned in the twist position which twists. That is, while the clamp head 53 twists the wire pair W between the clamp portion 54 in the twist position and the twist generator 30, the unprocessed wire pair is applied to the other clamp portion 54 in the mounting position. In order to be able to be mounted, the positions of the clamp portions 54 are supported so as to be alternately switchable.

  Further, the twist cable manufacturing apparatus 1 includes a control device (not shown). This control device is electrically connected to the switch S1, the operation buttons S2, S3, and S4, and based on these inputs, the drive timing of the motor of the rotation drive unit 32 and each air of the twist generator 30 The air supply timing of an air source (not shown) for driving the cylinder 36, the rotary cylinder 52 of the clamp unit 50, the air cylinder 62, and the air cylinder 69 is controlled.

  The operation of the twisted cable manufacturing apparatus 1 when twisting the wire pair W will be described below with reference to FIGS.

  FIG. 7 is a front view showing a part of the operation of the twisted cable manufacturing apparatus 1 with a part thereof omitted. FIG. 7A is a state in which the wire pair W is clamped with respect to the clamp portion 54 at the mounting position, Shows a state in which the electric wire pair W is clamped with respect to each clamp part 31.

  FIGS. 8A and 8B are front views showing a part of the operation of the twisted cable manufacturing apparatus 1 with a part omitted. FIG. 8A shows a state in which the wire pair W is clamped with respect to another clamp portion 54, and FIG. Each shows a state in which the twist of the pair W has ended.

  When twisting the wire pair W with reference to (a) of FIG. 7, first, the brake part is released so that the mounting member 51 (see FIG. 5) can be displaced with respect to the slide rail 13. Using the portion M, the distance between the clamp unit 50 and the twist generator 30 is made to correspond to the length of the wire pair W to be twisted. Next, the clamp unit 50 is fixed to the slide rail 13 by the brake part, and three pairs of wires W are taken out from the bowl-shaped accommodation part 16 (see FIG. 2), and the left ends of these wire pairs W are attached to the mounting position. Is inserted between the clamp piece 70 and the clamp piece 68 of the clamp portion 54 and the operation button S2 is pressed, so that the left end portion of the wire pair W is gathered into the clamp portion 54 as shown by an arrow D1. To clamp. In this state, the operator moves to the right along the longitudinal direction of the work plate 11 while holding the wire pair W, and moves the right end portion of the pair of wire pairs W forward of the pair of wire pairs W. Is inserted between the clamping plate 37 and the clamp piece 35 of the clamp part 31 and the switch S1 is pressed to clamp the right end part of the wire pair W to the front clamp part 31 as shown by an arrow D2. . In addition to this clamping operation, when any one of the switches S1 of each of the twist generators 30 is first pressed, the rotary cylinder 52 is driven as shown by an arrow D3 to set the mounting position and the twist. The clamp portion 54 is inverted between the positions.

  Referring to (b) of FIG. 7, the operator individually clamps the remaining two pairs of wires W with respect to the central and rear clamp portions 31. That is, the switch S1 of the clamp part 31 at the center and the rear is pressed, and the right end part of each wire pair W is individually clamped as indicated by arrows D4 and D5. Thus, when all the switches S1 of each clamp part 31 are pressed, the motor of each clamp part 31 starts to rotate as indicated by an arrow D6, and the twist of each wire pair W by the clamp part 31 is started. Work begins.

  Referring to (a) of FIG. 8, each wire pair W is gradually reduced in size in the left-right direction as it is twisted. In response to this contraction, the clamp portion 54 in the twisted position resists the driving force of the air cylinder 62 applied via the wire Y, that is, as indicated by the arrow D11, the rod 62b of the air cylinder 62. Is gradually displaced to the right with respect to the support plate 64 along the rail 64a. On the other hand, during this twisting operation, the operator moves from the clamp portion 31 to the clamp portion 54 again, and takes out the three pairs of electric wires W to be twisted next from the bowl-shaped storage portion 16, as indicated by an arrow D7. Then, the left end portions of the wire pairs W are clamped together with respect to the clamp portion 54 at the mounting position.

  Referring to FIG. 8B, when the motor of the clamp portion 31 is rotationally driven by the specified number of rotations and the twisting operation of each wire pair W is completed, the motor moves in the twist direction as indicated by an arrow D8. Is reversed once in the opposite direction, and the clamp part 31 and the clamp part 54 release the clamps at both ends of the wire pair W as indicated by arrows D9 and D10. In addition, the motor of the clamp part 31 reverses as described above, when the clamp of each electric wire pair W by the clamp part 31 and the clamp part 54 is released, the electric wire pair W has a restoring force with respect to the twist, This is to avoid a situation such as jumping up to the worker side. Therefore, the specified rotational speed is set to a value obtained by adding the reverse rotational speed of the motor to the desired twist number. Each pair of electric wires W thus released from the clamp is placed and held on the receiving plate 14 and the bottom raising member 15 (see FIG. 2) on the work table 11. On the other hand, during the operation, the operator moves to the right along the work table 11 and moves to the clamp unit 31 while holding each wire pair W clamped by the clamp unit 54 at the mounting position. It will be.

  In the above embodiment, the clamp portion 54 at the upper position is set as the mounting position, but the present invention is not limited to this. For example, as described below, the clamp portion positioned at the front is set as the mounting position. Is also possible.

  FIG. 9 is a perspective view showing a clamp unit of a twisted cable manufacturing apparatus according to the second embodiment of the present invention, and FIG. 10 is a perspective view showing a part of the clamp unit of FIG. 9 omitted. In addition, since the said flame | frame 10 and the twist generator 30 have the structure similar to the above, description is abbreviate | omitted here.

  Referring to FIGS. 9 and 10, the clamp unit 150 includes an attachment member 151 attached to each slide rail 13, a rotary cylinder (clamp head driving means) 152 fixed to the attachment member 151, and the rotary cylinder. A clamp head 153 that is rotatably connected to 152 and a pair of front and rear clamp portions 154 that extend rightward from the clamp head 153 are provided.

  The mounting member 151 includes a roller, a brake unit, and an operation unit (not shown) having the same configuration as that of the above embodiment, a support plate 156 fixed to the left end, and the clamping unit at a position on the right side of the support plate 156. And a table receiving portion 157 fixed to the head. The table receiving portion 157 is a rod-like member extending in the front-rear direction, and a pair of front and rear shafts J4 extending in the right direction is provided upright on the right side surface thereof. Each of the shafts J4 is provided with a roller 157a that is rotatable around the shaft J4. The carrier plate 156 is a plate-like member extending in the front-rear direction, and includes an insertion hole 156a that penetrates in the left-right direction at the center.

  The rotary cylinder 152 includes a cylinder body 159 fixed to the carrier plate 156, and a rotating shaft 160 extending from the cylinder body 159 to the right through the insertion hole 156a. The rotating shaft 160 is configured to be swingable about an axis parallel to the left-right direction with respect to the cylinder body 159, while the cylinder body 159 is configured to rotate the rotating shaft 160 forward and backward within a range of 180 °. It is designed to rotate. A clamp head 153 is connected to the right end portion of the rotation shaft 160 and is configured to rotate the clamp head 153.

  The clamp head 153 includes a plate-like rotation plate 161 formed in a circular shape in a side view, a pair of upper and lower air cylinders 162 disposed on the right side surface of the rotation plate 161, and the rotation plate 161. A pair of front and rear bearings 163 fixed in a state of penetrating in the left-right direction, a sliding shaft 164 slidably disposed in these bearings 163, and a pair of front and rear passing through the rotating plate 161 in the left-right direction And an auxiliary pin 165.

  The lower side surface of the rotating plate 161 is supported by the rollers 157a of the table receiving portion 157 so as to be rotatable around an axis parallel to the left-right direction. Each air cylinder 162 includes a rod 162b that extends in the right direction and a cylinder body 162a that can extend and contract in the left-right direction while being fixed at a vertical position across the center of the rotating plate 161. Each of the bearings 163 is disposed at a front and rear position that is point-symmetric with respect to the center (axis) of the rotating plate 161 and extends leftward from the right side surface of the rotating plate 161 beyond the left side surface. . Each of the sliding shafts 164 is a shaft extending in the left-right direction, and is inserted into each of the bearings 163. Each auxiliary pin 165 is disposed at a position that is 180 ° point-symmetric with respect to the center (axis) of the rotating plate 161. Specifically, the auxiliary pin 165 is located above the front bearing 163 and the rear bearing 163. It is slidably inserted into a pair of front and rear through-holes 161a penetrating the rotating plate 161 in the left-right direction at the lower position. Clamp portions 154 are attached to the right end portions of the front sliding shaft 164 and auxiliary pin 165 and the rear sliding shaft 164 and auxiliary pin 165, respectively.

  The clamp part 154 is a bifurcated metal member as a whole, and includes a clamp piece 168 for clamping the wire pair W and an attachment piece 167 facing the clamp piece 168. An air cylinder 169 is attached to the outer side of the attachment piece 167. A rod (not shown) of the air cylinder 169 passes through the attachment piece 167 so as to clamp / release the wire pair W with the clamp piece 168. Further, a clamping plate 170 that clamps the wire pair W with the clamp piece 168 is fixed to the free end of the rod. Each clamp portion 154 has a swing center (axis) of the rotary cylinder 52 so that the clamp portion 154 at the front position and the rear position is displaced to the same position for each forward and reverse rotation by the rotary cylinder 152. Are arranged at positions on the rotating plate 161 that are point-symmetric with respect to the angle of 180 °. Specifically, in the clamp portion 154 at the front position, a mounting piece 167 is disposed on the upper side, and an air cylinder 169 is disposed on the mounting piece 167, while in the clamp portion 154 on the rear side, the lower portion thereof. A mounting piece 167 is disposed on the side, and an air cylinder 169 is disposed on the mounting piece 167.

  A cylinder body 162 a of the air cylinder 162 is fixed to the side surface of each clamp piece 168. Note that the air cylinder 162 is normally set so that each rod 162b is in a contracted state, and in this state, each clamp portion 154 is maintained in a state of being pulled toward the rotating plate 161 side. . Therefore, when a force for displacing each clamp portion 154 in the right direction with respect to the rotating plate 161 is applied, each clamp portion 154 causes the driving force of the air cylinder 162 to contract each rod 162b as indicated by an arrow D12. In other words, the rods 162b are extended to the right with respect to the rotating plate 161.

  As described above, the clamp unit 150 rotates each clamp portion 154 between the front position and the lower position as indicated by the arrow D13 by the rotational drive of the rotary cylinder 152 that rotates the clamp head 153 forward and backward within a range of 180 °. They are designed to rotate with each other. Therefore, the clamp part 154 located on the front side is disposed at a mounting position facing the operator side located on the front side of the twisted cable manufacturing apparatus 1 so that the wire pair W can be clamped. On the other hand, the clamp portion 154 located at the rear is disposed at a twist position for twisting the wire pair W clamped with each twist generator 30.

  According to the twisted cable manufacturing apparatus 1 configured as described above, since the pair of clamp portions 54 and 154 are carried by the clamp heads 53 and 153, the one clamp portions 54 and 154 and the twist generators 30 are connected to each other. While the three wire pairs W are held with respect to the clamp portion 31 and the wire pairs W are twisted, the other wire portions W can be held with respect to the other clamp portions 54 and 154. Therefore, since the twist generator 30 can be driven to rotate between the time when the wire pair W is attached to one clamp part 54, 154 and the time when the wire pair is attached to the other clamp part 54, 154, The operating rate can be improved.

  Moreover, in the said twist cable manufacturing apparatus 1, by providing the twist generator 30 of at least 1 set (this embodiment 3 pieces), this twist generator 30 is utilized in order by a pair of clamp parts 54 and 154. Can do. That is, while twisting the wire pair W between one clamp part 54, 154 and each twist generator 30, the other clamp part 54, 154 is held the left end of the wire pair W, When the twisting operation is completed, the right end portion of the electric wire pair W can be held by each twist generator 30 to start the twisting operation. Therefore, compared with the case where one set of twist generators 30 is provided for each of the clamp portions 54 and 154, a compact device can be obtained.

  In the twisted cable manufacturing apparatus 1, one clamp part 54, 154 holds the left end part of the three pairs of electric wires W, and one of the electric wire pairs W is held by the twist generator 30. In this case, since the other clamp portions 54 and 154 are automatically displaced toward the worker side, the rotary cylinder 52 that rotationally drives the clamp head 53 is provided. After the holding, the operator can move again to the clamp portions 54 and 154 side and quickly hold the electric wire pair W to be twisted with respect to the clamp portions 54 and 154.

  The twist cable manufacturing apparatus 1 includes a motor that rotationally drives each twist generator 30 when all the electric wire pairs whose left end portions are held by the clamp portions 54 and 154 are clamped. And the twist generators 30 to clamp all the wire pairs W, the twisting operation of each wire pair W can be automatically started.

  In the above embodiments, three clamp portions 31 are provided. However, the present invention is not limited to this, and one or a plurality of clamp portions 31 may be provided.

It is a front view which shows the whole structure of the twist cable manufacturing apparatus which concerns on preferable embodiment of this invention. It is the II-II sectional view taken on the line of the twist cable manufacturing apparatus of FIG. It is a perspective view which shows the external appearance of the twist generator of FIG. It is a top view which shows arrangement | positioning of the twist generator of FIG. 1, (a) is the state arrange | positioned in parallel, (b) has each shown the state rotated mutually inside. It is a perspective view which expands and shows the clamp unit of FIG. FIG. 6 is a partial schematic perspective view showing a state where the clamp unit of FIG. 5 is viewed from the left side. It is a front view which abbreviate | omits one part about operation | movement of a twist cable manufacturing apparatus, (a) is the state which clamped the electric wire pair with respect to the clamp part in an attachment position, (b) is with respect to each twist generator. The state where the wire pair is clamped is shown. It is a front view which abbreviate | omits one part about operation | movement of a twist cable manufacturing apparatus, (a) is the state which clamped the electric wire pair with respect to another clamp part, (b) is the state which the twist of the electric wire pair was complete | finished Respectively. It is a perspective view which shows the clamp unit of the twist cable manufacturing apparatus which concerns on 2nd embodiment of this invention. It is a perspective view which abbreviate | omits and shows a part of clamp unit of FIG.

Explanation of symbols

1 Twist cable manufacturing equipment 30 Twist generator (twist generator)
54, 154 Clamp part 52, 152 Rotary cylinder (Clamp head drive means)
53,153 Clamp head W Wire pair

Claims (3)

A clamp unit that bundles and holds one end of a plurality of wire pairs, and the other end of the wire pair held by the clamp unit are individually clamped, and a plurality of twists are applied to the clamped wire pairs. A twist cable manufacturing apparatus including a twist generating unit,
A plurality of the clamp parts are provided,
While the wire pair is twisted between one clamp part and the twist generating part, the position of each clamp part is supported so that it can be switched alternately so that the remaining wire pair can be mounted on the remaining clamp part. A twisted cable manufacturing apparatus provided with a clamp head.   2. The twist cable manufacturing apparatus according to claim 1, wherein when the other end of the plurality of electric wire pairs held by one clamp part is clamped by one twist generation part, another clamp part is placed on the operator side. A twist cable manufacturing apparatus, further comprising a clamp head driving means for driving the clamp head so as to face the surface.   The twist cable manufacturing apparatus according to claim 1 or 2, further comprising a twist drive unit that rotationally drives the twist generation unit when all of the electric wire pairs whose one end is held by the clamp unit are clamped. A twisted cable manufacturing apparatus.