JP2007229745A - Method and apparatus for removing specific tendencies of electric wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for removing specific tendencies of an electric wire by which the specific tendencies of the electric wire can satisfactorily be removed over the wide range from the thick electric wire to the slender electric wire. <P>SOLUTION: The apparatus for removing the specific tendencies of the electric wire, by which the winding tendency and curling tendency of the electric wire are corrected and removed by straightening rollers, is provided with: a first electric wire tendency removal device 12, which is arranged at the upstream side in the advancing direction of the electric wire W and has the straightening rollers 21, 26 having large outer diameter thereby largely bending and ironing the electric wire; and a second electric wire tendency removal device 13 which is arranged at the downstream side of the first electric wire tendency removal device 12 and has the straightening rollers 31, 36 having small outer diameter thereby correcting the deformation in the electric wire by the large straightening rollers of the first electric wire tendency removal device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric wire defect removing method and an electric wire defect removing device that corrects a bending defect or a winding defect of an electric wire and shapes it into a straight line.

  When a crimping terminal is attached to the end of an electric wire by an automatic crimping machine, the electric wire bend removal device (straightener) is used to straighten the bent or curled wire etc. of the wire and shape it in a straight line. FIG. 9 shows an example of a conventional wire flaw removing device. The wire flaw removing device 2 is mounted on a support 3 installed on the frame 1 with a space along the traveling direction of the electric wire W. A plurality of, for example, two straightening rollers (straightener balls) 4, a holding body 5 that is urged downward by a spring 6 directly above the support 3 to be moved up and down along a guide rod 7, and each straightening roller 4 and a plurality of, for example, two correction rollers 8 that are offset in the traveling direction of the electric wires and are axially mounted so as to press the electric wires W against the holding body 5, and between the upper and lower correction rollers 4 and 8. The bent wrinkles and curled wrinkles are corrected by passing the electric wire W through the wire (see, for example, Patent Document).

And when the electric wire flaw removal apparatus 2 cannot correct the electric wire flaw sufficiently, for example, two electric wire flaw removal apparatuses 2 having the same configuration are arranged in series as shown in the figure to improve the correction ability of the electric wire W. It was. And when the electric wire flaw correction apparatus 2 cannot correct the electric wire flaw, the electric wire flaw removal apparatus 2 is further added. In the drawing, the correction rollers 4 and 8 are formed as mere circles for easy understanding, although the outer peripheral surface in contact with the electric wire W is a concave groove having a circular arc cross section.
Japanese Utility Model Publication No. 6-9087 (pages 3 to 4, FIG. 4)

  However, as shown in FIG. 9, when a plurality of wire flaw removal devices 2 having the same outer diameter of the correction rollers 4 and 8 are arranged to correct and remove the electric wire flaws, a number of wire flaw removal device groups are arranged. It is necessary to increase the installation cost as the installation space increases.

  Further, even if a plurality of, for example, two wire rod removal devices are used, the wires may not be straightened due to the wire rod removal capability. If the electric wire cannot be sufficiently corrected, cutting of the electric wire, stripping of the covering, crimping of the crimp terminal, etc. may not be possible, which has been one of the factors that reduce the yield. For this reason, it was necessary to additionally install a wire rod removing device.

  Furthermore, it is difficult for conventional wire flaw removal devices to remove wire flaws widely from thick wires to thin wires. For wires with a large outer diameter, use a device with a larger outer diameter of the straightening roller. In the case of an electric wire, workability is poor because an electric wire flaw removing device provided with a correction roller having an outer diameter corresponding to the electric wire diameter is used, with the outer diameter of the correction roller being reduced. In addition, when the wire rod removing device is incorporated in the wire supply device in the automatic crimping terminal machine, it is extremely difficult to change the wire rod removing device each time according to the wire diameter.

  This invention is made | formed in view of the above-mentioned point, and it aims at providing the electric wire flaw removal method and electric wire flaw removal apparatus which can remove an electric wire flaw widely widely from a thick electric wire to a thin electric wire.

  In order to achieve the above object, a method for removing a wire wrinkle according to the present invention is a method for removing a wire wrinkle or a winding wrinkle by correcting with a correction roller, the wire wrinkle removing method, It is characterized by correcting the electric wire by giving small to large bends sequentially.

  Moreover, the electric wire flaw removal method according to claim 2 of the present invention is the electric wire flaw removal method according to claim 1, wherein the electric wire is straightened after the electric wire is largely bent by a straightening roller having a large outer diameter. The deformation of the electric wire is corrected with the large correction roller by the correction roller having a small outer diameter.

  The bending roller or curl of the electric wire is corrected by giving a larger bend to the correcting roller having a large outer dimension from the traveling direction of the electric wire to be corrected. The electric wire is slightly deformed by being bent greatly. Next, the deformation of the electric wire attached by the correction roller having the large outer dimension is corrected by the correction roller having the small outer dimension. Thereby, the bending wrinkles and winding wrinkles of the electric wires can be removed, and the electric wires can be corrected substantially straight.

  Moreover, the wire wrinkle removal device according to claim 3 of the present invention is a wire wrinkle removal device that corrects and removes the bent wrinkles and curled wrinkles of the electric wires with a correction roller, and is arranged upstream in the traveling direction of the electric wires. A first electric wire flaw removing device having a straightening roller having a large outer diameter size and bending the electric wire greatly, and a correction roller having a small outer diameter size arranged on the downstream side of the first electric wire flaw removing device. And a second wire rod removing device that corrects deformation of the wire with a large straightening roller of the first wire rod removing device.

  A 1st electric wire flaw removal apparatus bends the electric wire which should be corrected largely with the correction roller with a large external dimension, and rectifies it by squeezing the said electric wire. Thereby, the bend and curl of the electric wire are corrected. At this time, since the electric wire is largely bent, the electric wire is slightly deformed by the correction roller. Next, the deformation | transformation attached to the electric wire is corrected with the correction roller with a small external dimension of a 2nd electric wire flaw removal apparatus. Thereby, the bending wrinkles and curled wrinkles of the electric wires can be removed satisfactorily and straightened.

  Moreover, the wire wrinkle removal device according to claim 4 of the present invention is a wire wrinkle removal device that corrects and removes the bent wrinkles and curled wrinkles of the electric wires with a correction roller, and is arranged upstream in the traveling direction of the electric wires. A first wire rod removing device having a straightening roller having a large outer diameter and bending the electric wire greatly, and a straightening roller of the first wire wire removing device disposed downstream of the first wire rod removing device. A second electric wire defect removing device that has a correction roller having a small outer diameter and corrects deformation of the electric wire with the correction roller of the first electric wire defect removing device; and downstream of the second electric wire defect removing device. A third electric wire which has a correction roller having a smaller outer diameter than the correction roller of the second electric wire removing device arranged on the side and which corrects deformation of the electric wire with the correction roller of the second electric wire flaw removing device Specially equipped with a soot removal device It is set to.

  When the electric wire to be corrected is thick, the electric wire to be corrected is largely bent by the correction roller having a large outer dimension of the first electric wire defect removing device, and the electric wire is rubbed and corrected. Thereby, the bend and curl of the electric wire are corrected. Next, the deformation | transformation attached to the electric wire is corrected with the correction roller with a small external dimension of a 2nd electric wire flaw removal apparatus with the big correction roller of a 1st electric wire flaw removal apparatus.

  When the electric wire to be corrected is thin, the electric wire rubs through the correction rollers of the first electric wire defect removing device and the second electric wire defect removing device and cannot apply a load necessary for correction. However, the electric wire that has passed through the first and second electric wire defect removing devices is corrected by the third electric wire defect removing device having a correction roller having a smaller outer dimension than the straightening roller of the second electric wire defect removing device. Remove the curl and curl. Thereby, even a thin electric wire can be corrected substantially straight. In this way, the wire rods can be removed widely from thick wires to thin wires by performing correction by combining different diameter rollers.

  According to the present invention, the outer diameter of the straightening roller is combined from a larger one to a smaller one in the direction of travel of the electric wire to give a small bend from a large bend, thereby greatly improving the wire flaw removal capability and a wide range of wires from thick to thin wires. Soot can be removed well. In addition, the number of wire removal devices to be used can be reduced, and space saving and facility cost can be reduced.

  Furthermore, it is possible to sufficiently correct a thin wire that could not be corrected in the past, and to reduce the number of defective products in cutting of the wire, stripping of the covering, crimping of the crimp terminal, etc., and the yield can be improved. .

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a schematic configuration of an electric wire defect removing device according to the present invention, and an electric wire defect removing device 11 includes a first electric wire defect removing device 12 and a second electric wire defect removing device 13. Yes. The first electric wire defect removing device 12 is arranged on the upstream side in the traveling (conveying) direction indicated by the arrow of the electric wire W to be corrected, and the second electric wire defect removing device 13 is immediately after the first electric wire defect removing device 12. It is arranged downstream.

  The first wire flaw removal device 12 is for correcting the electric wire W with a large bend, and includes a support 20 installed on the frame 1 and one side of the support 20 as shown in FIG. A plurality of, for example, two straightening rollers (straightener balls) 21 mounted at intervals along the moving direction (front-rear direction) of the electric wire W at the upper position of 20a and the upper and lower positions of the support body 20 are suspended. A guide rod 22 provided, a holding body 23 arranged so as to be able to move up and down horizontally via these guide rods 22, a support member 24 having both front and rear ends fixed to the upper ends of the front and rear guide rods 22, A load applying means 25 provided between the lower surface center of the support member 24 and the upper surface center of the holding body 23 facing each other to urge the holding body 23 downward to apply a load to the electric wire W; Along the moving direction of the electric wire W at the lower position of the side portion 23a. A plurality of, for example two straightening rollers 26 alternating with rollers 21 disposed at intervals is JikuSo.

  The straightening rollers 21 and 26 have the same size and shape, and are provided with concave grooves 21a and 26a having an arcuate (U-shaped) cross section as shown in FIG. 2 on the outer peripheral surface, and the bottoms of the concave grooves 21a and 26a. (Hereinafter referred to as “the outer diameter of the correction rollers 21 and 26”) is set sufficiently larger than the outer diameter of the electric wire W. Then, the wire is advanced in the direction of the arrow through the electric wire W between the lower correction roller 21 and the upper correction roller 26. In FIG. 1, the correction rollers 21 and 26 show a state in which the electric wires W are in contact with the bottoms of the concave grooves 21 a and 26 a, and hatching is omitted to avoid complication of the drawing.

  The load applying means 25 includes a screw rod 27 as a support shaft that is slidably inserted into a shaft hole that is supported at the upper end portion by the support member 24 and at the lower end portion that is formed in the upper surface of the holding body 23, and a screw. The adjustment nut 28 is screwed to the rod 27, and the spring 29 is disposed concentrically outside the screw rod 27 and is contracted between the upper surface of the holding body 23 and the adjustment nut 28. . The holding body 23 is urged downward by the spring force of the spring 29 and a load is applied to the electric wire W by the lower correction roller 21 and the upper correction roller 26. The spring force (load) of the spring 29 can be adjusted by the adjusting nut 28.

  The second electric wire defect removing device 13 is used to correct and remove deformations (flaws) attached to the electric wires W by being largely bent by the correction rollers 21 and 26 of the first electric wire defect removing device 12. 1 in the moving direction (front-rear direction) of the electric wire W at the upper position of the supporting body 30 installed on 1 and one side of the supporting body 30 (the same side as the one side 20a of the supporting body 20 shown in FIG. 2). A plurality of, for example, four straightening rollers (straightener balls) 31 that are axially mounted at intervals, a guide rod 32 suspended from the front and back of the upper surface of the support 30, and the guide rods 32. Holding body 33 arranged horizontally and vertically, support member 34 having both front and rear ends fixed to the upper end of front and rear guide rods 32, the lower surface center of support member 34 and the upper surface center of holding body 33 facing each other. A load which is provided between the two and urges the holding body 33 downward. A plurality of, for example, four correction rollers 36 arranged alternately with the correction roller 31 along the moving direction of the electric wire W are provided at the lower position of one side portion of the applying means 35 and the holding body 33. Yes.

  The straightening rollers 31 and 36 have the same size and shape, and a concave groove having a circular arc (U-shaped) cross section is formed on the outer peripheral surface, similar to the straightening rollers 21 and 26, and these concave grooves passing through the rotation center. The diameter of the bottom (hereinafter referred to as “outer diameter of the correction rollers 31, 36”) is set to be sufficiently smaller than the outer diameter of the correction rollers 21, 26. Then, the wire is advanced in the direction of the arrow through the electric wire W between the lower correction roller 31 and the upper correction roller 36. In addition, in FIG. 1, the correction | amendment rollers 31 and 36 show the state which the electric wire W is contacting the ditch | groove bottom like the correction | amendment rollers 21 and 26, and in order to avoid the complexity of drawing, hatching is abbreviate | omitted. The load applying means 35 is configured in the same manner as the load applying means 25, and the corresponding reference numerals are given and description thereof is omitted.

  In this way, the wire rod removing devices 12 and 13 having different outer dimensions of the correction rollers are arranged in the order of the correction rollers 21 and 26 having a larger outer diameter with respect to the traveling direction of the electric wire W, and the correction rollers 31 and 36 having a smaller outer diameter. It arrange | positions and the electric wire W is advanced in the arrow direction. Note that the external dimensions of the correction rollers 21 and 26 of the first wire rod removing device 12 and the correction rollers 31 and 36 of the second wire rod removing device 13 are set according to the thickness of the electric wire W to be corrected.

  Below, the effect | action of the wire flaw removal apparatus 11 of the said structure is demonstrated. When the electric wire W to be corrected is thick, the first electric wire wrinkle removing device 12 greatly corrects the electric wire W by bending the electric wire W by the correction rollers 21 and 26 having large outer dimensions. Thereby, the bending wrinkles and curling wrinkles of the electric wire W are corrected. However, since the electric wire W is largely bent, the electric wire W is slightly deformed by the correction rollers 21 and 26. Next, the deformation (flaw) attached to the electric wire W is corrected by the correction rollers 31 and 36 having a small outer dimension of the second electric wire flaw removing device 13. Thereby, the bending wrinkles and curled wrinkles of the electric wire W can be removed satisfactorily and straightened.

  When the electric wire to be corrected is an electric wire thinner than the above-described electric wire W (hereinafter referred to as “electric wire W ′”), the first electric wire rod removing device 12 causes the correction rollers 21 and 26 having a large outer dimension to be connected to the electric wire W ′. Since it progresses in the state which rubs through, the load required for correction cannot be provided. Accordingly, the electric wire W ′ proceeds to the second electric wire flaw removing device 13 in a state where it is not corrected so much. The second wire wrinkle removing device 13 corrects the electric wire W ′ by the correction rollers 31 and 36 having an outer diameter smaller than the correction rollers 21 and 26 and removes the bent wrinkles and curled wrinkles. Thereby, the electric wire W ′ can be corrected substantially straight. Thereby, it is possible to remove the wire rod widely from the thick electric wire W to the thin electric wire W ′.

  When the electric wire to be corrected is a wire that is thinner than the above-described electric wire W ′ (hereinafter referred to as “electric wire W” ”), the electric wire W ″ is not limited to the correction rollers 21 and 26 of the first electric wire rod removing device 12. That is, the correction rollers 31 and 36 of the second wire rod removing device 13 are also scraped through, and a load necessary for correction cannot be applied.

  In such a case, as shown in FIG. 3, the third electric wire rod provided with the straightening rollers 41 and 46 whose outer dimensions are smaller than the straightening rollers 31 and 36 on the downstream side of the second electric wire rod removing device 13. A removing device 14 is provided, and these straightening rollers 41 and 46 correct the electric wire W ″ that has passed through the first and second electric wire flaw removing devices 12 and 13 to remove the bent wrinkles and curl. Even a thin electric wire W ″ can be corrected almost straight. In addition, the 3rd wire rod removal apparatus 14 is comprised similarly to the 1st, 2nd wire rod removal apparatus 12 and 13, and attaches | subjects a corresponding code | symbol and abbreviate | omits detailed description.

  The external dimensions of the straightening rollers 21 and 26 of the first wire rod removing device 12, the straightening rollers 31 and 36 of the second wire rod removing device 13, and the straightening rollers 41 and 46 of the third wire straightening device 14 are as follows. It is set by the range of the thickness of the electric wire to be corrected.

  FIG. 4 shows a schematic configuration of a wire flaw removal device 15 capable of correcting the wire flaw removal devices 12 to 14 shown in FIG. 1 and FIG. 3 in a wide range from a thick electric wire to a thin electric wire. A first wire rod removing device 16 that gives a large bend to the traveling direction of W, a second wire rod removing device 17 that gives a moderate bend, and a third wire rod removing device 18 that gives a small bend It is.

  In this case, the first wire rod removing device 16 and the second wire rod removing device 17 correspond to the first wire rod removing device 12 and the second wire rod removing device 13 shown in FIGS. The third wire rod removing device 18 corresponds to the third wire rod removing device 14 shown in FIG. Further, the straightening rollers of the first wire rod removing device 16 are denoted by reference numerals 51 and 52, the straightening rollers of the second wire rod removing device 17 are denoted by reference numerals 54 and 55, and the straightening roller of the third wire rod removing device 18 is straightened. The rollers are indicated by reference numerals 57 and 58.

  The first wire flaw removing device 16 shown in FIG. 4 only needs to be able to impart a large bend to the electric wire W, and therefore, the lower correction roller 51 disposed between the two upper correction rollers 52, 52. Even if the outer dimension is smaller than the outer dimension of the correction roller 52, the bend may be increased. Of course, the correction roller 51 may have the same size as the correction roller 52 as indicated by a two-dot chain line. In contrast to the above, the outer dimension of the lower correction roller 51 may be increased and the outer dimension of the upper correction roller 52 may be decreased.

  The shape of each of the correction rollers described above is not limited to the formation of a concave groove having a circular arc (U-shaped) cross section on the outer peripheral surface as shown in FIG. 2, but the correction roller 61 as shown in FIG. A V-groove 61a having a substantially V-shaped cross section may be formed on the outer peripheral surface. Further, as shown in FIG. 6, two bearings 62 having a flange 62a on one side are arranged to face each other, a concave groove is formed by the flanges 62a on both sides and the outer peripheral surface 62b of the bearing body, and the collar 64 is formed by the bolt 63. Alternatively, the support 20 and the holding body 23 may be mounted on the shaft.

  Further, the shape of the correction roller is not limited to a circle (perfect circle), but may be an elliptical correction roller 65 as shown in FIG. 7, or each apex of the equilateral triangle may be formed in an arc shape as shown in FIG. It is good also as the formed substantially roller-shaped correction roller 66 formed. In addition, concave grooves 65a and 66a having an arcuate section (U-shape) are formed on the outer peripheral surfaces of these correction rollers 65 and 66 as indicated by dotted lines.

  Further, although the spring 29 is used as the load applying means 25 for applying a load to the electric wire W, the present invention is not limited to this, and an air cylinder or a rubber member may be used. Moreover, it is good also as fixed, without changing a load. Furthermore, the vertical axis distance (gap size) of the upper and lower correction rollers may be adjusted without using the load applying means.

It is a block diagram of the wire flaw removal apparatus concerning this invention. It is the end elevation seen from the direction of arrow II of the wire rod removal apparatus shown in FIG. It is another block diagram of the wire rod removal apparatus concerning this invention. It is another block diagram of the wire rod removal apparatus concerning this invention. It is explanatory drawing which shows the modification of the correction roller shown in FIG. It is explanatory drawing which shows the modification of the correction roller shown in FIG. It is explanatory drawing which shows the modification of the correction roller shown in FIG. It is explanatory drawing which shows the modification of the correction roller shown in FIG. It is a block diagram of the conventional electric wire wrinkle correction apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Electric wire flaw removal apparatus 3 Support body 4,8 Correction roller 5 Holding body 6 Spring 7 Guide rod 11,15 Electric wire flaw removal apparatus 12,16 1st electric wire flaw removal apparatus 13,17 2nd electric wire flaw removal apparatus 14, 18 Third wire rod removing device 20, 30, 40 Support 20a One side 21, 26, 31, 36, 41, 46 Straightening roller 21a, 26a Groove 22, 32 Guide rod 23, 33, 43 Holding Body 23a One side portion 24, 34 Support member 25, 35 Load applying means 27, 37 Screw rod 28, 38 Adjustment nut 29, 39 Spring 51, 52, 54, 55, 57, 58, 61 Straightening roller 61a V groove 62 Bearing 62a Flange 62b Outer peripheral surface 63 Bolt 64 Collar 65, 66 Straightening roller 65a, 66a Groove W, W ', W "Electric wire

Claims (4)

A method for removing wire wrinkles and winding wrinkles by straightening and removing them with a correction roller,
A method for removing electric wire flaws, which comprises correcting the electric wire in the direction in which the electric wire travels by sequentially giving a large bend to a small bend.   The straightening of the electric wire is characterized in that the electric wire is largely bent by a straightening roller having a large outer diameter and then the deformation of the electric wire is straightened by the straightening roller having a small outer diameter. The method for removing electric wire defects according to 1. A wire wrinkle removal device that corrects and removes bent wrinkles and curled wrinkles of electric wires with a correction roller,
A first wire rod removing device that is arranged upstream of the electric wire in the traveling direction and has a straightening roller having a large outer diameter and is bent largely by bending the electric wire;
A second electric wire rod disposed on the downstream side of the first electric wire defect removing device and having a correction roller having a small outer diameter and correcting deformation of the electric wire with a large correction roller of the first electric wire defect removing device. An apparatus for removing electric wire flaws, comprising: a removing device. A wire wrinkle removal device that corrects and removes bent wrinkles and curled wrinkles of electric wires with a correction roller,
A first wire flaw removing device that has a correction roller having a large outer diameter and is arranged upstream of the electric wire in the traveling direction;
A straightening roller disposed on the downstream side of the first wire rod removing device and having a smaller outer diameter than the straightening roller of the first wire rod removing device has the straightening roller of the first wire rod removing device. A second wire flaw removal device for correcting deformation attached to
A straightening roller disposed downstream of the second wire rod removing device and having a smaller outer diameter than the straightening roller of the second wire rod removing device; And a third electric wire defect removing device for correcting the deformation of the electric wire defect removing device.

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