JP2017091863A - Continuous bending device of metal wire strip member and continuous bending method of metal wire strip member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow for easy continuous bending of a metal wire strip member, so as to be superposed in the width direction.SOLUTION: A continuous bending device of a metal wire strip member includes a feed mechanism 52 for feeding a metal wire strip member 20 continuously along a feed line P, a width direction guide mechanism 70 provided in the middle of the feed line P, and guiding the metal wire strip member 20 so that the width becomes narrower gradually toward the feeding direction, and a thickness direction guide mechanism 80 provided at a position where the metal wire strip member 20 is made narrower gradually by the width direction guide mechanism 70, and displacing the width direction central part of the metal wire strip member 20 to one principal surface side thereof in the thickness direction.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a technique for continuously bending a metal wire strip member.

  Patent Document 1 discloses a technique in which a caulking portion formed by resistance welding metal wires is formed at an end of a metal braided portion, and a barrel portion of a terminal fitting is caulked to the caulking portion.

Japanese Patent Laying-Open No. 2015-60632

  By the way, when using the metal braided portion in a strip shape, it may be required to fold the metal braided portion so as to overlap in the width direction.

  For example, when the width of the metal braid is larger than the width of the barrel, forming the caulked portion with the metal braid folded in the width direction will cause the caulking. The part can be easily disposed in the barrel part.

  In addition, the metal braided portion is folded so that the metal braided portion is overlapped in the width direction so that the intermediate portion in the extending direction of the metal braided portion can be easily bent and deformed, or from the convenience of the installation space. It is conceivable that finishing is preferable.

  In these cases, it is convenient if the metal braid can be bent continuously.

  Then, an object of this invention is to enable it to be able to fold continuously easily so that a metal wire strip | belt-shaped member may be piled up in the width direction.

  In order to solve the above-described problem, a first aspect is a continuous bending apparatus for a metal wire strip member, wherein the feed mechanism portion continuously feeds the metal wire strip member along a feed line, and the feed A width direction guide mechanism that is provided in the middle of the line and guides the metal wire strip member so as to gradually become narrower in the feed direction, and the metal wire strip member is formed by the width direction guide mechanism. A thickness direction guide mechanism is provided at a position where the width gradually decreases, and displaces the central portion in the width direction of the metal wire strip-shaped member toward the one main surface side in the thickness direction of the metal wire strip-shaped member.

  A 2nd aspect is a continuous bending apparatus of the metal wire strip-shaped member which concerns on a 1st aspect, Comprising: The said width direction guide mechanism sends the said metal wire strip-shaped member sent along the said feed line from both sides. A plurality of pairs of guide rollers to be sandwiched are included, and the distance between the plurality of pairs of guide rollers is set to be gradually reduced in the feed direction.

  A 3rd aspect is a continuous bending apparatus of the metal wire strip-shaped member which concerns on a 1st or 2nd aspect, Comprising: The said thickness direction guide mechanism is rotatably provided around the rotating shaft orthogonal to the said feed line. In contact with the other principal surface of the central portion in the width direction of the metal wire strip member fed along the feed line, the thickness direction central portion of the metal wire strip member is the thickness of the metal wire strip member A disk-shaped guide that is displaced toward the other main surface side in the direction is included.

  A 4th aspect is a continuous bending apparatus of the metal wire strip-shaped member which concerns on a 3rd aspect, Comprising: The said thickness direction guide mechanism is a disk shape by which the circumferential groove along the circumferential direction was formed in the outer periphery. It is formed so as to be rotatable around a rotation axis orthogonal to the feed line at a position opposite to the disc-shaped guide 82 via the metal wire strip member fed along the feed line. A receiving guide.

  Moreover, in order to solve the said subject, the continuous bending method of the metal wire strip-shaped member which concerns on a 5th aspect, (a) The process of sending a metal wire strip-shaped member continuously along a feed line, (b) in the middle of the feed line, the step of guiding the metal wire strip member so as to gradually become narrower in the feed direction; and (c) in the step (b), the metal wire. A step of displacing a central portion in the width direction of the band-shaped member toward one main surface in the thickness direction of the metal wire-shaped band member.

  According to the first aspect, the metal wire strip-shaped member is guided by the width direction guide mechanism so as to be gradually narrowed, while the thickness direction guide mechanism has its width direction central portion on the one main surface side in the thickness direction. Displaced. For this reason, a metal wire strip-like member can be easily and continuously folded so as to overlap in the width direction.

  According to the 2nd aspect, it can fold by narrowing a width | variety gradually, sending a metal wire strip | belt-shaped member smoothly.

  According to the third aspect, the disk-shaped guide portion is brought into contact with the other main surface of the central portion in the width direction of the metal wire strip member, so that the central portion in the width direction of the metal wire strip member is the thickness of the metal wire strip member. The direction can be smoothly displaced toward the other main surface.

  According to the 4th aspect, the center part of the width direction of the metal wire strip | belt-shaped member sent along a feed line is arrange | positioned between the peripheral groove of a receiving side guide part, and the peripheral part of a disk-shaped guide part. Thereby, the center part of the width direction of a metal wire strip-shaped member is more reliably bent in a U shape. Thereby, the bending position of a metal wire strip-shaped member can be stabilized.

  According to the fifth aspect, the metal wire strip-like member is displaced so as to be gradually narrowed while the center portion in the width direction is displaced toward the one main surface side in the thickness direction. For this reason, a metal wire strip-like member can be easily and continuously folded so as to overlap in the width direction.

It is a schematic plan view which shows a conductive member with a terminal. It is explanatory drawing which shows the state before the connection of a terminal and an electrically-conductive member. It is a schematic sectional drawing in the III-III line of FIG. It is a schematic sectional drawing which shows the other example of a junction part. It is explanatory drawing which shows the process of bending a metal wire strip-shaped member and forming a crimping | compression-bonding part. It is explanatory drawing which shows the process of bending a metal wire strip-shaped member and forming a crimping | compression-bonding part. It is explanatory drawing which shows the process of bending a metal wire strip-shaped member and forming a crimping | compression-bonding part. It is the schematic which shows the processing apparatus containing the continuous bending apparatus of a metal wire strip | belt-shaped member. It is a schematic plan view which shows a guide mechanism. It is a schematic side view which shows a guide mechanism. It is a figure which shows the mode of the metal wire strip | belt-shaped member in the XI-XI line of FIG. It is a figure which shows the mode of the metal wire strip | belt-shaped member in the XII-XII line | wire of FIG. It is a figure which shows the mode of the metal wire strip | belt-shaped member in the XIII-XIII line | wire of FIG. It is a figure which shows the mode of the strip | belt-shaped member made from a metal wire in the XIV-XIV line | wire of FIG. It is a figure which shows the mode of the metal wire strip | belt-shaped member in the XV-XV line | wire of FIG. It is a schematic plan view which shows the guide mechanism which concerns on a modification. It is a schematic side view which shows the guide mechanism which concerns on a modification.

  Hereinafter, the continuous bending apparatus of the metal wire strip member and the continuous bending method of the metal wire strip member according to the embodiment will be described.

<Premise>
First, as a premise, the terminal-equipped conductive member to be finally manufactured will be described. 1 is a schematic plan view showing a conductive member 10 with a terminal, FIG. 2 is an explanatory view showing a state before connection between a terminal 16 and a conductive member 12, and FIG. 3 is a schematic view taken along line III-III in FIG. FIG. 5 to FIG. 7 are explanatory views showing a process of forming the crimping portion 17 by bending the metal wire strip member 20.

  The terminal-equipped conductive member 10 includes a conductive member 12 and a terminal 16.

  The conductive member 12 is formed by processing a metal wire strip member 20 (see FIGS. 5 to 7).

  Here, the strip member 20 made of metal wire is a combination of the plurality of metal wires 15 so as to form a strip shape. For example, the metal wire 15 may be composed of only a metal wire, or may be a wire in which a metal plating layer different from this is formed on the metal wire. The metal wire may be a copper wire or a copper alloy wire, and the metal plating layer may be tin plating. But the material of a metal strand and a metal plating layer is not limited to them. The metal wire strip-shaped member 20 may be a member in which a plurality of metal wires 15 are woven so as to form a cylinder (such as a cylindrical braid) or may be folded so as to be flat. 15 may be woven so as to form a belt shape from the beginning (a sheet-like metal cloth or a net).

  A joint 12 a is formed by joining a plurality of metal wires 15 to a portion of the conductive member 12 to which the terminal 16 is crimped. The joining of the plurality of metal wires 15 may be performed by thermal welding or may be performed by ultrasonic welding. Moreover, in the part (intermediate area | region other than an edge part) except the junction part 12a formed among the electrically-conductive members 12, the some metal wire 15 is made into the state which is not joined, and is formed easily. .

  The terminal 16 is a member formed by pressing a metal plate such as copper, and includes a crimping portion 17 and a connecting portion 18.

  The crimping portion 17 is formed so that a pair of crimping pieces 17b are formed on both side portions of the bottom portion 17a and has a U-shaped cross-sectional shape as a whole. Then, the pair of crimping pieces 17b is caulked and deformed inward with the joining portion 12a disposed in the crimping portion 17, so that the crimping portion 17 is connected to the joining portion 12a at the end of the conductive member 12. Electrically and mechanically connected.

  Further, the connecting portion 18 is a portion that can be connected to a counterpart member that is a counterpart to which the terminal 16 is connected. Here, the connection part 18 is formed in the plate shape in which the hole 18h which can be bolt-fastened with respect to the other party member was formed.

  Here, the metal wire strip member 20 is a relatively wide strip member. In order to easily fit the end of the metal wire strip member 20 into the crimping piece 17b, the conductive member 12 is preferably narrow. Further, the intermediate portion of the conductive member 12 can be easily bent in the width direction, or the intermediate portion of the conductive member 12 in the extending direction is also wide for reasons such as the arrangement space of the intermediate portion of the conductive member 12. It may be preferable to make it narrow. For this reason, it is preferable that the metal wire strip-like member 20 is folded so as to overlap in the width direction. Here, the metal wire strip-shaped member 20 is folded at two locations so that both side portions thereof are overlapped with the one main surface side (see FIG. 3). In particular, the side edges of the metal wire strip member 20 are folded so as to face each other. As a result, the width dimension of the conductive member 12 is about half the width dimension of the original metal wire strip-shaped member 20.

  In addition, like the joining part 12D shown in FIG. 4, in a state where both side edges of the wire strip member 20B are opposed to each other, a portion in front of the both side edges of the metal wire strip member 20B is buckled. It is also conceivable that the metal wire belt-like member 20B is gathered on one main surface side in the widthwise central portion of the metal wire belt-like member 20B in a state of being folded so as to be compressed.

  That is, the joining parts 12 and 12D should just be made into the form which the both sides of metal wire strip | belt-shaped member 20C deform | transformed into the one main surface side of the center part of the width direction suitably, and were gathered.

  And as mentioned above, in the state where the end of the metal wire strip-like member 20 is folded as described above, the metal wires 15 are joined to each other so that the joint 12a in the conductive member 12 also Maintained in a folded form. Thereby, also in parts other than the junction part 12a among the electrically-conductive members 12, it is maintained to the said folding form to some extent.

  In order to form the conductive member 12 with the metal wire strip member 20 folded as described above, the following may be performed.

  That is, as shown in FIG.5 and FIG.6, the metal wire strip | belt-shaped member 20 is bent along the line located in the center of the width direction, and is folded in half.

  Thereafter, a part of the extending direction of the metal wire strip member 20 (the part where the crimping piece 17b is to be formed) is disposed in the bonding mold 30 to bond the metal wires 15 together. The bonding mold 30 includes a lower mold 32 and an upper mold 36. A recess 33 having a width corresponding to the width direction of the joint 12 a is formed in the lower mold 32, and the upper mold 36 is arranged in the recess 33 so as to close the upper space of the recess 33. A projecting convex portion 37 is formed.

  And a part (end part etc.) of the extending direction of the said metal wire strip | belt-shaped member 20 is arrange | positioned in the recessed part 33 by making the fold into the upper side. In this state, the convex portion 37 is pushed into the concave portion 33. Then, the fold of the metal wire strip member 20 is pushed downward, and the fold of the metal wire strip member 20 and the side edge portion are deformed so as to bulge outward. Then, in a state where the portion between the crease and the side edge portion of the metal wire strip member 20 is folded in two, the convex portion 37 pushes the metal wire strip member 20 into the concave portion 33, whereby the metal wire It is set as the said folding form which piled up the both sides of the strip | belt-shaped member 20 on the one main surface side. In this state, for example, the metal wire belt-shaped member 20 is partially heated through the bonding mold 30 heated by a heater or the like, and the plurality of metal wires 15 are bonded to maintain a certain shape. .

  As described above, when the metal wire strip member 20 is processed, it is convenient if the metal wire strip member 20 can be continuously folded in two along its extending direction. Therefore, hereinafter, a configuration for continuously folding the metal wire strip member 20 in half will be described.

<Continuous Bending Device for Metal Wire Strip Member and Continuous Bending Method for Metal Wire Strip Member>
FIG. 8 is a schematic view showing a processing apparatus 40 including a continuous bending apparatus 50 for metal wire strip members. The processing device 40 includes a continuous bending device 50, a joining device 42, and a terminal crimping device 44.

  The continuous bending apparatus 50 includes a feed mechanism unit 52 and a guide mechanism 60.

  The feed mechanism section 52 is configured to continuously feed the metal wire strip member 20 along a predetermined feed line P. Here, the feed mechanism unit 52 includes a supply unit 54 provided on the upstream side of the feed line P and a feed unit 56 provided on the middle or downstream side of the feed line P.

  The supply unit 54 has a configuration in which the metal wire strip member 20 is wound around a reel or the like. The metal wire strip member 20 is continuously drawn out from the supply section 54.

  The feed unit 56 includes a pair of rollers 57 and a motor 58 that can rotationally drive the pair of rollers 57. Then, with the metal wire strip member 20 sandwiched between the pair of rollers 57, the pair of rollers 57 is rotationally driven in the feed direction, whereby the metal wire strip member 20 is continuously pulled out from the supply section 54. , And can be sent along the feed line P.

  The guide mechanism 60 is provided between the supply unit 54 and the feed unit 56, and is configured to feed the metal wire belt-shaped member 20 fed along the feed line P while guiding it in a folded form. ing.

  The joining device 42 is provided on the downstream side of the guide mechanism 60, and a plurality of portions (end portions, etc.) in the extending direction of the folded metal wire strip-shaped member 20 are formed by the joining die 30. These metal wires 15 are joined to each other so that a joint 12a can be formed. The terminal crimping device 44 is provided on the downstream side of the joining device 42 and is configured to crimp the terminal 16 to the joining portion 12a. Thereafter, the conductive member 12 (metal wire strip member 20) is appropriately cut.

  Since the joining device 42 and the terminal crimping device 44 themselves can be realized by various configurations including well-known configurations, the following description will focus on the guide mechanism 60 for folding the metal wire strip member 20 in half. .

  FIG. 9 is a schematic plan view showing the guide mechanism 60, and FIG. 10 is a schematic side view showing the guide mechanism 60.

  The guide mechanism 60 includes a width direction guide mechanism 70 and a thickness direction guide mechanism 80.

  The width direction guide mechanism 70 is provided in the middle of the feed line P, and can guide the metal wire belt-like member 20 fed along the feed line P so as to gradually become narrower in the feed direction. It is configured.

  The width direction guide mechanism 70 includes a plurality of pairs of guide rollers 72, 74, 76. The pair of guide rollers 72, 74, 76 of each set is disposed so that the metal wire strip-like member 20 fed along the feed line P can be sandwiched from both sides thereof. In addition, the distance between the pair of guide rollers 72, 74, and 76 in each group is set so as to gradually decrease toward the downstream side in the feed direction. Thereby, the metal wire strip member 20 fed along the feed line P is guided so as to become gradually narrower along the feed direction.

  More specifically, the plurality of sets of guide rollers 72, 74, 76 are supported on one main surface side of the support plate 62. The support plate 62 is supported along a horizontal plane perpendicular to the direction of gravity. A metal plate or the like can be used as the support plate 62. The support plate 62 is disposed at a position at which the metal wire belt-shaped member 20 fed along the feed line P can be slidably supported from below in the direction of gravity. Thereby, the metal wire strip-shaped member 20 is fed while sliding on the support plate 62.

  The pair of guide rollers 72 is disposed on the support plate 62 on the upstream side of the feed line P. The pair of guide rollers 72 is rotatably supported by a shaft portion 72 a erected on the support plate 62 at a position sandwiching the feed line P. Each rotation shaft of the pair of guide rollers 72 is in the direction of gravity. Further, the shaft portion 72a supports the guide roller 72 in a rotatable manner. Then, when the metal wire strip member 20 passes through the pair of guide rollers 72, the pair of guide rollers 72 comes into contact with both side portions of the metal wire strip member 20 and is driven to rotate. The distance between the pair of guide rollers 72 is set to be equal to or smaller than the width of the metal wire strip member 20.

  The pair of guide rollers 74 is disposed downstream of the pair of guide rollers 72 in the feeding direction of the metal wire strip member 20. As with the pair of guide rollers 72, the pair of guide rollers 74 is rotatably supported by the shaft portion 74a at a position where the feed line P is sandwiched. The distance between the pair of guide rollers 74 is set smaller than the distance between the pair of guide rollers 72.

  The pair of guide rollers 76 is disposed downstream of the pair of guide rollers 76 in the feeding direction of the metal wire strip member 20. As with the pair of guide rollers 72, the pair of guide rollers 76 is rotatably supported by the shaft portion 76a at a position between which the feed line P is sandwiched. The distance between the pair of guide rollers 76 is set smaller than the distance between the pair of guide rollers 74. Here, the distance between the pair of guide rollers 76 is set to be twice the thickness of the metal wire strip member 20. Further, the height dimension (dimension in the rotation axis direction) of the pair of guide rollers 76 is set to a size exceeding one half in the width direction of the metal wire strip member 20. Therefore, the metal wire strip member 20 can be maintained in a state of being folded in two between the pair of guide rollers 76.

  In addition, it is preferable that the space | interval dimension between a pair of guide rollers 72 and 74 and the space | interval dimension between a pair of guide rollers 74 and 76 are the same along the feed line P. FIG. This is because the width of the metal wire belt-like member 20 can be gradually reduced between the respective portions. However, this is not essential.

  In addition, a pair of auxiliary rollers 78 are disposed downstream of the pair of guide rollers 76 in the feeding direction of the metal wire strip member 20. As with the pair of guide rollers 76, the pair of auxiliary rollers 78 is rotatably supported by a shaft portion 78a at a position where the feed line P is sandwiched. The distance between the pair of auxiliary rollers 78 is set to be the same as the distance between the pair of guide rollers 76. By this auxiliary roller 78, the metal wire strip-shaped member 20 can be sent to the downstream side in a folded state. The pair of auxiliary rollers 78 are disposed at appropriate positions along the feed line P.

  One or more of the pair of guide rollers 72, 74, 76 and the pair of auxiliary rollers 78 may be driven to rotate by a motor or the like.

  The thickness direction guide mechanism 80 is provided at a position where the metal wire strip member 20 is gradually narrowed by the width direction guide mechanism 70, and the metal wire strip member 20 is formed at the center in the width direction of the metal wire strip member 20. It is comprised so that it may displace to 20 thickness direction one main surface side (upper surface side).

  Here, the thickness direction guide mechanism 80 includes at least one (here, two) disk-shaped guides 82 and 86.

  The disk-shaped guide 82 is a position along the feed line P, and is provided between the pair of guide rollers 72 and the pair of guide rollers 74. More specifically, a slit S is formed at a position along the feed line P in the support plate 62. The slit S passes through a position between the pair of guide rollers 72, a position between the pair of guide rollers 74, and a position between the pair of guide rollers 76. The disk-shaped guide 82 is formed in a disk shape. Preferably, when the peripheral portion of the disc-shaped guide 82 is observed in a cross section along the rotation axis, an arc shape that protrudes outward is drawn (see FIG. 12). The disc-shaped guide 82 is disposed in the slit S with a part protruding from the upper surface of the support plate 62. The shaft portion 82a is supported so as to be rotatable around a rotation axis along the direction connecting the pair of guide rollers 72. The rotating shaft is also perpendicular to the feed line P and parallel to the support plate 62.

  The projecting dimension of the disc-shaped guide 82 with respect to the upper surface of the support plate 62 is set to be smaller than the dimension in the width direction of the metal wire strip-shaped member 20. This protrusion dimension is set smaller than the width direction dimension 1/2 of the metal wire strip member 20, for example.

  When the metal wire belt-shaped member 20 passes through the portion between the pair of guide rollers 72 and 74 along the feed line P, the center in the width direction of the metal wire belt-shaped member 20 rides on the disk-shaped guide 82. , Guided so as to be displaced upward with respect to both side portions. At this time, the disk-shaped guide 82 contacts the lower surface of the metal wire strip-shaped member 20 and rotates in a driven manner.

  The disk-shaped guide 86 is a position along the feed line P, and is provided between the pair of guide rollers 74 and the pair of guide rollers 76. The disc-shaped guide 86 is formed in a disc shape like the disc-shaped guide 82. The disc-shaped guide 86 is disposed in the slit S in a state in which a part thereof protrudes from the upper surface of the support plate 62. The shaft portion 86a is rotatably supported around a rotation axis along a direction connecting the pair of guide rollers 74.

  The projecting dimension of the disc-shaped guide 86 with respect to the upper surface of the support plate 62 is set to be larger than the projecting dimension of the disc-shaped guide 86 and smaller than the dimension in the width direction of the metal wire strip member 20. This protrusion dimension is set to be larger than, for example, the width direction dimension 1/2 of the metal wire strip member 20.

  When the metal wire belt-shaped member 20 passes along the feed line P between the pair of guide rollers 74 and 76, the center in the width direction of the metal wire belt-shaped member 20 rides on the disk-shaped guide 86. , Guided so as to be displaced upward with respect to both side portions. At this time, the disk-shaped guide 86 contacts the lower surface of the metal wire strip-shaped member 20 and rotates in a driven manner. The disk-shaped guides 82 and 86 guide the central portion in the width direction of the metal wire strip-shaped member 20 so as to be gradually displaced upward.

  The thickness direction guide mechanism 80 further includes receiving side guides 84 and 88.

  The receiving side guide 84 is formed in a disk shape in which a circumferential groove 84g along the circumferential direction is formed on the outer periphery. The radius of curvature when the circumferential groove 84g at the peripheral edge of the receiving side guide 84 is observed in a cross section along the rotation axis thereof is set to be larger than the radius of curvature of the same cross sectional shape of the disk-shaped guide 82.

  The receiving-side guide 84 is provided at a position on the opposite side (upper position) with respect to the disk-shaped guide 82 via the metal wire strip-shaped member 20 fed along the feeding line P. Further, the receiving side guide 84 is rotatably supported around the rotation axis orthogonal to the feed line P at the position by the support shaft portion 84a. The support shaft portion 84a itself is supported at a fixed position by a shaft support frame 84b. A gap is provided between the receiving side guide 84 and the disc-shaped guide 82 to such an extent that the metal wire strip-like member 20 can be disposed. Then, the central portion in the width direction of the metal wire belt-shaped member 20 fed between the pair of guide rollers 72 and between the pair of guide rollers 74 is fed while being sandwiched between the disk-shaped guide 82 and the receiving side guide 84. It is done. In particular, the central portion in the width direction of the metal wire belt-shaped member 20 is sandwiched between the disc-shaped guide 82 and the peripheral groove 84g of the receiving side guide 84, so that the U-shaped sandwiched portion is sent. As a result, the bent shape is further stabilized.

  Further, the receiving guide 88 has a configuration in which a circumferential groove 88g is formed in the same manner as the receiving guide 84, and the metal wire belt-like member 20 sent along the feed line P with respect to the disc-shaped guide 86 is provided. It is provided in the position on the opposite side (upper position). Further, the receiving side guide 88 is rotatably supported around a rotation axis orthogonal to the feed line P by the support shaft portion 88a with the same configuration as described above. The support shaft portion 88a itself is supported at a fixed position by a shaft support frame 88b. And between this receiving side guide 88 and the disk-shaped guide 86, the center part of the width direction of the metal wire strip | belt-shaped member 20 sent through between a pair of guide rollers 76 from between a pair of guide rollers 74 is as above. Similarly, it is sent while being sandwiched.

  In the present embodiment, all of the pair of guide rollers 72, 74, 76, the pair of auxiliary rollers 78, the disk-shaped guides 82, 86, and the receiving side guides 84, 88 are fed by the feeding of the strip member 20 made of metal wire. Although the example of the driven rotation has been described, at least one or a plurality of them may be configured to be rotationally driven by a motor or the like.

  The operation of the continuous folding apparatus 50 will be described.

  First, the metal wire strip-shaped member 20 is pulled out from the supply unit 54, disposed along the feed line P, and set in the feed unit 56. Then, the metal wire strip member 20 is continuously fed along the feed line P by the feeding operation of the feeding unit 56.

  The metal wire belt-shaped member 20 is guided from the pair of guide rollers 72 through the pair of guide rollers 74 and the pair of guide rollers 76.

  Here, for example, as shown in FIG. 11, when the metal wire strip member 20 passes between the pair of guide rollers 72, the metal wire strip member 20 is guided in a substantially planar form on the support plate 62. Suppose that

  When the metal wire strip member 20 passes between the disc-shaped guide 82 and the receiving guide 84, as shown in FIG. 12, the central portion in the width direction of the metal wire strip member 20 is more than the both side portions. Guided through the top. Therefore, the metal wire strip-shaped member 20 is slightly bent so as to protrude upward at the center in the width direction.

  Thereafter, when the metal wire strip member 20 passes between the pair of guide rollers 74, the metal wire strip member 20 is bent so as to be narrower as shown in FIG. Further, when the metal wire strip member 20 passes between the disk-shaped guide 86 and the receiving guide 88, the center portion in the width direction of the metal wire strip member 20 is more than the both side portions as shown in FIG. Is guided to pass further upward. Therefore, the metal wire strip-like member 20 is in a state of being bent more rapidly so as to protrude upward at the center in the width direction.

  When the metal wire strip member 20 passes between the pair of guide rollers 76, as shown in FIG. 15, the metal wire strip member 20 is bent so that it is folded in two at the center in the width direction. In this state, the sheet is fed between the pair of auxiliary rollers 78 on the downstream side. Thereby, the metal wire belt-like member 20 folded in half can be continuously fed to the next joining device 42 and the like.

<Effects>
According to the metal wire strip member continuous bending apparatus and the metal wire strip member continuous bending method configured as described above, the metal wire strip member 20 is gradually widened by the width direction guide mechanism 70. While being guided so as to be narrow, the thickness direction guide mechanism 80 displaces the center portion in the width direction to one main surface side in the thickness direction. For this reason, the metal wire strip-like member 20 sent in a flat shape can be easily and continuously folded so as to overlap in the width direction.

  The width direction guide mechanism 70 includes a plurality of pairs of guide rollers 72, 74, and 76 that sandwich the metal wire belt-shaped member 20 fed along the feed line P from both sides, and a plurality of pairs of guide rollers 72. , 74, and 76 are set so as to gradually decrease in the feed direction, the metal wire belt-like member 20 can be smoothly fed while being narrowed gradually. Thereby, the metal wire strip-like member 20 can be folded in a stable form. At this time, since one guide roller 72, 74, 76 rotates, there is also an advantage that the metal wire strip member 20 is less likely to be rubbed or scratched.

  The thickness direction guide mechanism 80 is rotatably provided around a rotation axis orthogonal to the feed line P, and contacts the other main surface of the central portion in the width direction of the metal wire strip 20 fed along the feed line P. Since the disk-shaped guides 82 and 86 for displacing the central portion in the width direction of the metal wire strip member 20 to the other main surface side in the thickness direction of the metal wire strip member 20 are included, the width direction of the metal wire strip member 20 The center portion can be folded while being smoothly displaced toward the one main surface in the thickness direction. At this time, the disk-shaped guides 82 and 86 are rotated, so that there is an advantage that the metal wire belt-shaped member 20 is hardly rubbed or scratched.

  Further, the thickness direction guide mechanism 80 is formed in a disk shape having peripheral grooves 84g and 88g formed in the circumferential direction on the outer periphery, and is sent along the feed line P to the disk shaped guides 82 and 86. Since it further includes a receiving guide 84.88 provided around the rotation axis orthogonal to the feed line P at a position opposite to the metal wire strip member 20, the width of the metal wire strip member 20 is increased. The central portion in the direction is fed while being sandwiched between the circumferential grooves 84g, 88g of the receiving side guides 84, 88 and the disk-shaped guides 82, 86. For this reason, the width direction center part of the metal wire strip-shaped member 20 is more reliably bent into a U-shape, and the folding position and the folding form of the metal wire strip-shaped member 20 can be further stabilized. Note that the receiving side guides 84 and 88 may be omitted.

{Modifications}
Applications and usage examples of the present apparatus and method are not limited to the above examples. For example, in the above-described example, the metal wire strip member 20 has been described as an example in which both side portions are finally folded on one main surface side of the metal wire strip member 20, but the metal wire strip member has been described. The terminal 16 may be crimped to the member 20 folded in half. That is, the final form of the metal wire strip-shaped member 20 does not affect the use or implementation of the present apparatus and method applied during the processing.

  In the above embodiment, the width direction guide mechanism 70 includes a plurality of pairs of guide rollers 72, 74, and 76, and the thickness direction guide mechanism 80 includes disk-shaped guides 82 and 86. It is not essential that the mechanism 70 and the thickness direction guide mechanism 80 have such rollers or disk-shaped guides.

  For example, as in the modification shown in FIGS. 16 and 17, the width direction guide mechanism 170 includes a pair of guide wall portions 172 provided on both sides of the feed line P, and the pair of guide wall portions 172 faces inward. The surface may be formed so as to gradually become narrower in the feed direction. This is because even in this case, the metal wire strip-like member 20 is fed so as to become gradually narrower.

  As shown in the modification, the thickness direction guide mechanism 180 has a thickness direction guide portion 182 that is provided along the feed line P and that gradually increases in height toward the feed direction. May be. Even in this case, the metal wire strip member 20 is guided so that the central portion in the width direction is displaced upward when passing through the width direction guide mechanism 170.

  In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts. For example, an example in which the width direction guide mechanism 70 in the embodiment is combined with the thickness direction guide mechanism 180 in the modification, or the thickness direction guide mechanism 80 in the embodiment and the width direction guide in the modification. An example in which the mechanism 70 is combined may be used.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Conductive member with a terminal 12 Conductive member 15 Metal wire 20 Metal wire strip | belt-shaped member 50 Continuous bending apparatus 52 Feed mechanism part 54 Supply part 56 Feed part 60 Guide mechanism 62 Support plate 70 Width direction guide mechanism 72, 74, 76 Guide roller 80 Thickness direction guide mechanism 82, 86 Disc guide 84, 88 Receiving side guide 84g, 88g Circumferential groove 170 Width direction guide mechanism 172 Guide wall portion 180 Thickness direction guide mechanism 182 Thickness direction guide portion P Feed line

Claims (5)

It is a continuous bending device for strips made of metal wire,
A feed mechanism section that continuously feeds the strip member made of metal wire along a feed line;
A width direction guide mechanism that is provided in the middle of the feed line and guides the metal wire strip member so as to gradually become narrower in the feed direction;
The metal wire strip member is provided at a position where the width of the metal wire strip member is gradually narrowed by the width direction guide mechanism, and the width direction central portion of the metal wire strip member is placed on one main surface side in the thickness direction of the metal wire strip member. A thickness direction guide mechanism to be displaced;
A continuous bending apparatus for a metal wire strip-shaped member. It is the continuous bending apparatus of the metal wire strip-shaped member according to claim 1,
The width direction guide mechanism is
It includes a plurality of sets of a pair of guide rollers that sandwich the metal wire belt-shaped member that is fed along the feed line from both sides, and the distance between the plurality of pairs of guide rollers gradually increases in the feed direction. A continuous bending device for a metal wire strip-shaped member set to be small. It is a continuous bending apparatus of the metal wire strip-shaped member according to claim 1 or 2,
The thickness direction guide mechanism is
The metal wire strip member is rotatably provided around a rotation axis orthogonal to the feed line and is in contact with the other main surface of the central portion in the width direction of the metal wire strip member fed along the feed line. The continuous bending apparatus of a metal wire strip-shaped member including a disk-shaped guide that displaces the central portion in the width direction of the metal wire strip-shaped member toward the other main surface in the thickness direction of the metal wire strip member. It is a continuous bending apparatus of the strip member made of metal wire according to claim 3,
The thickness direction guide mechanism is
It is formed in a disk shape in which a circumferential groove along the circumferential direction is formed on the outer periphery, and at a position opposite to the disk-shaped guide via the metal wire belt-shaped member that is fed along the feed line. The continuous bending apparatus for a metal wire strip-shaped member, further comprising a receiving side guide rotatably provided around a rotation axis orthogonal to the feed line. (a) a step of continuously feeding a metal wire strip member along the feed line;
(b) in the middle of the feed line, the step of guiding the metal wire strip-like member so as to gradually become narrower in the feed direction;
(c) in the step (b), the step of displacing the central portion in the width direction of the metal wire strip member in the thickness direction of the metal wire strip member;
A method of continuously bending a metal wire strip-shaped member.

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