JP2008535226A - A device for winding a wire in a rectangular shape - Google Patents

Abstract

  The present invention relates to a winding device configured to wind a wire without winding a wire having a semi-rigid rectangular cross section around a core, thereby producing a self-supporting coil. A winding device includes a wire holding assembly for selectively fixing a wire, and a wire for bending a selected portion of the wire at a predetermined angle when the wire is fixed by the wire holding assembly. A wire bending mechanism comprising a bending mechanism; a wire conveying mechanism for receiving the wire from a continuous feed and conveying a first length of the wire to the wire bending mechanism; and the wire bending In order to control the operation of the wire conveying mechanism and the wire bending mechanism so as to manufacture a coil made of a wire having a predetermined shape by sequentially bending the wire at a predetermined angle along the mechanism. And a control device coupled to the bending mechanism and the wire transport mechanism.

Description

  The present invention relates to a winding device, and more particularly, to a device for manufacturing a self-supporting coil by winding a half-grid coil without using a core material.

  Wire winding devices are well known in the technical field to which the present invention belongs. A wire winding apparatus usually includes a rotary core around which a wire is wound. In some cases, the core is finished and forms part of the product. In this case, the coil is completed when a predetermined number of turns are wound around the core.

  In other cases, for example when an air coil is manufactured, the core does not form part of the finished product. In such cases, the coil must be removed from the core. Many techniques have been established to achieve this. For example, the core consists of a separable part so that the core shape is reduced, so that the core can be easily removed from the coil.

  This type of winding device is not well suited for wires having a relatively large rectangular cross-section or other non-circular semi-rigid wires. In particular, due to the force required to maintain these wires on the rotary core, the electrical insulation performance of the wires will be reduced or impaired, resulting in an unusable coil.

  Accordingly, it is an object of the present invention to provide an improved winding apparatus for winding rectangular wires and other relatively large non-circular wires.

  Other objects, advantages and features of the present invention will become apparent upon reading the following non-limiting description of embodiments which are given by way of example only with reference to the accompanying drawings.

  More specifically, in the first embodiment of the present invention, a wire holding assembly for selectively fixing a wire, and the wire is selected when the wire is fixed by the wire holding assembly. A wire bending mechanism having a wire bending assembly for bending the bent portion at a predetermined angle, and receiving the wire from a continuous feed and transporting the wire of a first length to the wire bending mechanism And a wire conveying mechanism and a wire bending mechanism so as to manufacture a coil comprising a wire having a predetermined shape by sequentially bending the wire at a predetermined angle along the wire bending mechanism. And a control device coupled to both the wire bending mechanism and the wire transport mechanism to control both operations of the wire winding apparatus.

  In a second embodiment of the present invention, a wire holding assembly for selectively securing a wire and bending a selected portion of the wire when the wire is secured by the wire holding assembly. A wire bending mechanism for receiving the wire from a continuous feed and transporting the wire to the wire bending mechanism; and In order to control the operation of both of the wire bending mechanisms, thereby forming a coil of the wire having a predetermined shape characterized by a series of wire lengths and intermediate angles of bending, A control device coupled to the wire bending mechanism, wherein the control device reduces the length of the series of wires to two consecutive wire lengths. Wire winding configured to control the wire conveying mechanism to sequentially convey to the wire bending mechanism between and to control the wire bending mechanism to bend the wire at a corresponding intermediate angle. An attachment device is provided.

  In a third embodiment of the present invention, a wire holding assembly for selectively fixing a wire and a selected portion of the wire when the wire is fixed by the wire holding assembly are predetermined. A wire bending mechanism including a wire bending assembly for bending at an angle, and the wire conveying mechanism for receiving the wire from a continuous feed and conveying a predetermined length of the wire to the wire bending mechanism And controlling the wire bending mechanism and the wire conveying mechanism according to a predetermined sequence to produce a coil of wire having a predetermined shape characterized by a series of wire lengths and intermediate angles of bending. There is provided a wire winding device comprising a control device coupled to the wire conveying mechanism and the wire bending mechanism.

  Finally, in a fourth embodiment of the present invention, a wire fixing means for selectively fixing a wire, and a selected portion of the wire when the wire is fixed by the wire fixing means. Wire bending means for bending at a predetermined angle; wire conveying means for receiving the wire from a continuous feed and conveying a predetermined length of the wire to the wire bending means; and wire fixing means; A control unit coupled to the wire bending unit and the wire conveying unit, wherein the wire is sequentially bent at a predetermined position along a longitudinal direction of the wire, thereby forming a coil made of a wire having a predetermined shape; A wire winding apparatus comprising: the control means configured to control the operation of both the wire transport mechanism and the wire bending mechanism for manufacturing; There is provided.

  Other objects, advantages and features of the present invention will become more apparent upon reading the following non-limiting description of embodiments given by way of example only with reference to the accompanying drawings.

  The present invention relates to a winding device configured to wind a semi-rigid wire without using a core to wind the wire, and to manufacture a self-supporting coil. The winding device includes a wire strip mechanism, a wire transport mechanism, and a wire bending mechanism. All of these mechanisms are controlled by a control device. In operation, it is controlled to carry a predetermined length of continuous wire from the wire strip mechanism to the wire bending mechanism before bending at a predetermined angle. This process is repeated until the coil is complete.

  1 to 4 of the accompanying drawings illustrate a winding device 10 for a wire having a rectangular cross section in a first embodiment of the present invention. The winding device 10 includes a wire strip mechanism 12, a wire transport mechanism 14, and a wire bending mechanism 16. All of these mechanisms are controlled by a control device 18 having an interface 19. The transparent cover 20 is detachably positioned so as to cover the wire transport mechanism 14 for safety.

  The wire strip mechanism 12 is provided for the purpose of extending a wire of a predetermined length straight from the spool 22 in order to supply the wire to the wire transport mechanism 14 with a substantially constant and appropriate tension. Thereafter, the wire transport mechanism 14 transports the wire of the correct length to the wire bending mechanism 16 that accurately bends the wire at a predetermined controllable angle. The control device 18 controls these mechanisms so as to manufacture a coil having a desired specification and shape such as the coil 132 shown in FIG. 21 by continuing a predetermined sequence.

  As shown in FIGS. 2 and 3, the wire strip mechanism 12 includes a shaft 24 to which a spool 22 is attached. The shaft 24 is held by the frame 26 of the winding device 10 via two pillow blocks 28 and 30. The shaft 24 includes a pulley 25 that is utilized to connect the shaft 24 to a motor 27 via a drive belt 29. The motor 27 is coupled to the control device 18, and is thereby controlled by the motor 27 to straighten the wire coming out of the spool 22. The shaft 24, motor 27, and drive belt 29 can be partially or completely interchangeable or supplemented by means for driving other spools that can be controlled by the controller 18.

  The wire strip mechanism 12 also includes a movable carriage 32 attached to the rail 34 via a linear bearing 36 so that the carriage 32 can move in the longitudinal direction (see arrow 38) relative to the spool 22. Contains. The movable carriage 32 includes an arcuate wire guide 42 having two parallel plates 44 separated by rollers 46. The pneumatic cylinder 40 urges the movable carriage 32 so as to be separated from the spool 22 and maintains a tension acting on the carriage. The cylinder 40 is a closed circuit. A limit switch (not shown) is used to supply carriage position data to the controller 18.

  For those skilled in the art, it goes without saying that the wire can be fed to the wire transport mechanism 14 by a carriage 32 at a constant level. The movable carriage 32 automatically adjusts the tension acting on the wire itself, and the spool 22 stretches the wire of a predetermined length, so that the wire is brought into a wire transport assembly with a substantially constant and appropriate tension during operation. 14 can be further provided. When a limit switch (not shown) detects the limit position of the carriage 32, a signal is sent to the controller 18 that operates the motor 27 to stretch another predetermined length of wire. This process is repeated so that the wire transport mechanism 14 has a sufficiently long wire during its operation. Further, the carriage 32 can also prevent the wire transport assembly 14 from pulling the wire at the maximum load or variable load of the spool 22.

  FIG. 4 illustrates that the wire strip mechanism 12 also includes an adjustable wire straightener 48 that straightens the drawn wire before feeding it to the wire transport mechanism 14. The adjustable wire straightener 48 includes a bottom roller 50 and a top roller 52 that is urged toward the bottom roller 50 in an adjustable manner. This type of wire straightener is known in the technical field to which the present invention belongs and will not be described in detail herein. It goes without saying that the wire straightener may be in other forms that can straighten the wire.

  For those skilled in the art, it goes without saying that when the motor 27 rotates the spool 22, the wire is unwound from the spool. In this case, the carriage 32 is urged so as to be separated from the spool by the cylinder 40 while maintaining a tension acting on the drawn wire.

  Further implementation of the present invention even when the wire strip mechanism in the first embodiment of the present invention includes a carriage 32 with both the tension adjustment function and the leveling function described above. The wire strip mechanism in the example may be provided with two independent mechanisms. One mechanism is provided to adjust the height of the wire drawn from the spool 22 and the other mechanism is provided to adjust the tension acting on the wire drawn from the spool 22. For example, any biasing pulley suitably attached to the frame is utilized to ensure that the wire is at the same height as the wire transport mechanism 14. The wire straightener 48 also serves as such a height adjusting device.

  FIG. 5 shows the wire transport mechanism 14 and the wire bending mechanism 16. The wire transport mechanism 14 is provided for the purpose of repeatedly transporting a wire having a predetermined length to the wire bending mechanism 16 in a state controlled by the control device 18 in order to manufacture a coil having a predetermined shape.

  The wire transport mechanism 14 includes an elongated wire guide 72 for guiding the wire 70 from the wire strip mechanism 14 to the wire bending mechanism 16 and the wire feeder 53. The elongated wire guide 72 includes a slot 73 configured and sized to receive the wire 70.

  The wire feeder 53 includes a direct acting table 54 that is operated by an electric servo motor. For example, it goes without saying that a direct acting table manufactured by THK Corporation is appropriate. Therefore, the table 54 can be moved in the direction of the arrow 55 while being controlled by the control device 18. In FIG. 5, the direct acting table 54 is located at the leftmost position.

  The grip arm 56 is rotatably attached to the direct acting table 54. More specifically, the gripping arm 56 is attached in a state of being fixed to a shaft 58 that is rotatably attached to two pillow blocks 60 (only one is shown) fixed to the direct acting table 54. ing.

  The first end 62 of the gripping arm 56 is further rotatably attached to an actuator 64 that is rotatably attached to the direct acting table 54. Therefore, the actuator 64 can rotate the grip arm 54 around the shaft 58 (see the arrow 59 in FIG. 6).

  FIG. 6 shows that the second end 66 of the gripping arm 56 positively pushes the wire 70 against the wire guide 72 when the gripping arm 56 is located at a wire gripping position represented by a broken line in FIG. The friction pad 68 is configured to be frictionally engaged.

  When the gripping arm 56 is located at the wire gripping position indicated by the broken line in FIG. 6 and the linear motion table 54 is not movable, the wire 70 moves toward the wire bending mechanism 16. This prevents the wire strip mechanism 12 from pulling the wire from the spool 22 while the motor 27 is operating without conveying an undesired length of wire to the wire bending mechanism 16.

  Furthermore, when the gripping arm 56 is positioned at the wire gripping position and the linear motion table 54 is moved toward the wire bending mechanism 16, the wire 70 is conveyed to the wire bending mechanism 16. Since the actuator of the direct acting table 54 can realize an operation with very high accuracy, a wire having a predetermined length can be conveyed to the wire bending mechanism 16 with high accuracy.

  The wire bending mechanism 16 will be described in more detail with reference to FIG. The wire bending mechanism 16 includes a wire holding assembly 74 for selectively stopping the wire 70 during the bending process, and a wire bending assembly 76 for bending selected portions of the wire 70.

  The wire holding assembly 74 forms a wire receiving support, includes a bracket 78 attached with an actuator 80 with a piston 82 and forming a movable friction element, and is slidable through an opening in the bracket 78. It is said. The wire retaining assembly 74 is configured and sized to receive the wire 70 and interconnects the groove element 84 with the longitudinal groove 85 forming a fixed friction element and the groove element 84 and the bracket 78. An upper plate 86 is also included.

  When the piston 82 extends through the opening of the bracket 78 and the wire 70 is frictionally engaged by the piston 82, the wire 70 is prevented from moving.

  The wire holding assembly 74 may be oriented in a direction different from that shown in FIG. 7 with respect to the wire bending assembly 76. For example, the wire holding assembly 74 shown in FIG. 7 may be turned upside down.

  The wire bending assembly 76 is rotatable about a base 87 fixed to the frame 26, a fixed roller 88 fixed in a fixed state to the base 87, and a rotation shaft formed on the fixed roller 88. A rotating roller 90 is included. More specifically, the rotary roller 90 is attached in a state of being fixed to an actuator 92 attached to the base 87. Each of the fixed roller 88 and the pivoting roller 90 includes circumferential grooves 89 and 91 sized to snugly receive the wire 70.

  FIGS. 8 to 20 describe the operations of the wire transport assembly 14 and the wire bending assembly 16 with reference to the steps of manufacturing the one-turn coil 132 shown in FIG.

  As will be described in detail below, a coil having a predetermined shape continuously conveys a wire of a predetermined length, bends the wire at a predetermined angle, and then performs a series of steps as necessary. It is manufactured by repeating at a length and an angle.

  FIG. 8 shows a step (see arrow 94) of transporting a first predetermined length of wire by the wire transport mechanism 14. The first length of wire conveyed is equal to the first long leg of the coil plus the length of the lead of the coil. When a highly accurate length of the wire is transported, the wire transport mechanism 14 stops and the piston 82 operates to prevent the wire from moving.

  Thereafter, as shown in FIG. 9, the rotatable roller 90 is rotated at a first predetermined angle to perform the first bending on the coil (see arrow 96). It should be noted that the radius of curvature of this bend is equal to the radius of the circumferential groove of the fixed roller 88. In addition, the gap between the fixed roller 88 including the circumferential groove 89 and the rotating roller 90 including the circumferential groove 91 has two wires 70 in order to enable high-precision bending. An intermediate fit is provided between the two rollers 88 and 90.

  In the step shown in FIG. 10, the rotating roller 90 is returned to its own resting place (see arrow 98) by the actuator 92, and the piston 82 is returned to its own standby position, the second predetermined position. The length of wire 70 is transported by the wire transport mechanism 14 (see arrow 100). When a highly precise length of wire is transported again, the wire transport mechanism 14 stops and the piston 82 operates to prevent the wire from moving. This last step is similar to the step shown in FIG. 8 except that the second predetermined length of the wire conveyed to the wire bending mechanism 16 is different from the first predetermined length of the wire. It should be noted.

  It will be appreciated by those skilled in the art that the piston 82 is operated during the bending process to prevent movement of the wire and returns to its standby position while the wire is transported to the wire bending mechanism. For simplicity, the above description of the operation of the piston 82 of the actuator 80 will not be repeated herein.

  FIG. 11 represents the bending step for the second bending of the coil. In order to perform this second bending, the rotary roller 90 is rotated at a second predetermined angle (see arrow 102). Since the fixed roller 88 determines the bend radius, the bend radius of the second bend is the same as the bend radius of the first bend, while the amount of movement of the rotary roller 90 is greater in the second bend. Thus, the angle formed by the second bend is smaller than the angle formed by the first bend.

  As shown in FIG. 12, the rotary roller 90 returns to its initial position (see arrow 104), and a third predetermined length of wire is conveyed (see arrow 106).

  Thereafter, the third bending is performed by the movement of the rotary roller 90 (see arrow 108 in FIG. 13).

  It should be noted that the third predetermined length is equal to the second predetermined length, and the third bend is the same as the first bend for manufacturing the coil 132 as shown in FIG.

Since the coil 132 is symmetrical, it is clear that the operating procedure shown in FIGS. 8-13 is repeated to form the second half of the coil 132. An operation procedure for forming the second half will be briefly described with reference to FIGS.
In FIG. 14, the rotating roller 90 returns (arrow 110), and a fourth predetermined length of wire is conveyed (arrow 112).
In FIG. 15, a fourth bending is performed (arrow 114).
In FIG. 16, the rotating roller 90 returns (arrow 116), and the fifth predetermined length of wire is conveyed (arrow 118).
In FIG. 17, a fifth bending is performed (arrow 120).
In FIG. 18, the rotary roller 90 returns (arrow 122), and a sixth predetermined length of wire is conveyed (arrow 124).
In FIG. 19, the sixth bending is performed (arrow 126).

  When the sixth bend is performed, the first winding of the coil is completed. The process is then repeated a predetermined number of times to produce a predetermined number of turns. If the process is repeated to form additional turns, no further coil lead length is required, so that the first predetermined length of wire conveyed to the wire bending mechanism 16 is greater than the first turn. It goes without saying that it is short.

As shown in FIG. 20, when a predetermined number of turns of wire is wound, a predetermined length of wire is conveyed to complete the coil (arrow 130). Thereafter, the wire is cut (not shown), either automatically or manually, to produce the coil 132 shown in FIG.

  22 to 24 show a coil winding device 134 having a rectangular cross section according to the second embodiment of the present invention. Since the winding device 134 is very similar to the device 10, only the differences between the winding device 10 and the winding device 134 will be described in detail below for the sake of brevity.

  The wire winding device 134 further includes a wire strip mechanism 136 and a wire cutting mechanism 138 in addition to the wire strip mechanism 12, the wire transport mechanism 14, the wire bending mechanism 16, and the control device 18.

  The wire strip mechanism 136 is attached to the frame 26 between the wire strip mechanism 12 and the wire transport mechanism 14. However, as will be apparent from the following description, the wire strip mechanism 136 may be located at any position downstream from the spool 22 and upstream from the wire cutting mechanism 138. Needless to say, the wire strip mechanism 136 is also disposed at an operable position with respect to the wire.

  The wire strip mechanism 136 will be described in detail with reference to FIGS.

  The wire strip mechanism 136 includes two opposing strip claws 138 attached to a common strip claw actuating mechanism 140 slidably attached to a frame member in the form of a beam 141, each on each strip claw. Two attached finger graters 142, a wire gripping mechanism 144 fixed to the beam 141, a linear actuator 146 for selectively moving the strip pawl operating mechanism 140 along the beam 141, and a suction device (not shown). Contains.

  The beam 141 is parallel to the elongated wire guide 72 of the wire transport mechanism 14.

  Each strip pawl 138 rotates to the mounting assembly 148 that is a part of the strip pawl operation mechanism 140 via each interlock gear 150 in order to rotate in a uniform manner between the standby position and the wire engagement position. It is mounted movably. The strip claws 138 are positioned with respect to the wire conveyance path so as to face each other symmetrically with respect to the wire 70. Each strip pawl 138 includes a cutting edge 139 at its distal end.

  The strip pawl operating mechanism 140 further includes a lever arm 152 integrally attached to one of the two strip claws 138 and an actuator in the form of a cylinder 154 operatively coupled to the lever arm 152. It is out. More specifically, the distal end 156 of the lever arm 152 is pivotally attached to the piston 158 of the cylinder 154. The cylinder 154 is attached to the attachment assembly 148 via an L-shaped bracket 160.

  With further reference to FIG. 26, the strip pawl motion mechanism 140 is applied to the beam 141 via sliding elements 162, 164 secured to the beam 141 and an L-shaped bracket 166 securing the mounting assembly 148 to the sliding element 164. It is slidably mounted.

  The linear actuator 146 includes a cylinder 167 having its piston 168 coupled to the sliding element 164 so that the sliding elements 162 and 164 selectively move in opposite directions. More specifically, the piston 168 is fixedly attached to the first longitudinal end 170 of the elongated plate 172. The second end of the elongated plate 172 is secured to the sliding element 164 via a length adjustable bolt 174. Two mechanical stoppers 176 and 178 are fixed to the beam 141 in order to limit the trajectory of the strip pawl operation mechanism 140 along the beam 141.

  Each greater finger 142 includes a blade 180 at its distal end. Each greater finger 142 is attached to each strip pawl 138 so that when the strip pawl 138 is positioned in the wire engagement position, the blade 180 of the greater finger is level with the cutting edge 139 of the strip pawl 138. ing.

  The wire gripping mechanism 144 includes a first friction plate 182 attached to the beam 141 in a fixed state, and a second friction plate for selectively contacting the first friction plate 182 by the gripping actuator assembly 186. 184. The gripping actuator assembly 186 includes a cylinder 188 attached to the beam 141 via a mounting bracket 190. The piston 192 of the cylinder 188 is coupled to the second friction plate 184 via a length adjustable assembly 194. Such a length adjustable assembly is conceivable to those skilled in the art and will not be described in detail herein for the sake of simplicity.

  The strip pawl operation mechanism 136, the wire gripping mechanism 144, and the linear actuator 146 are all controlled by the control device 18.

  The operation of the wire strip mechanism 136 will be described in detail with reference to FIGS.

  FIG. 27 shows the wire 70 passing between the strip claws 138 and the wire strip mechanism 136 located at the standby position. In this position, the cylinder 154 of the strip pawl operation mechanism 140 is fully extended, the strip pawl 138 is separated from each other, and the cylinder 167 of the linear actuator 146 and the cylinders 167 and 192 of the wire gripping mechanism 144 are completely retracted. .

  When the controller 18 detects the position where the wire 70 is stripped (FIG. 28), the wire gripping mechanism 144 contacts the first friction plate 182 (see arrow 196), thereby gripping the wire 70. The second friction plate 184 operates to move toward the first friction plate 182 until it is fixed.

  The strip pawl operation mechanism 140 also operates so that the piston of the cylinder 154 is accommodated (see arrow 198). This lifts the lever arm 152 and brings the two strip claws 138 together and contacts the wire 70 (see arrow 200).

  29 and 30, when the linear actuator 146 operates, the cylinder 167 extends (see arrow 202), and the wire gripping mechanism 144, and thus the strip pawl 138, moves with the greater finger 142 attached to itself. To do. By moving linearly over a predetermined length of wire 70, the corresponding length of wire 70 is stripped. Greater finger 142 is positioned behind the strip pawl associated with strip movement, so that the excess sheath and core material 206 can be removed as a result of the stripping process. Further, the residue is removed by a suction device (see the broken line portion in FIG. 29).

  The controller 18 accurately controls the operation of the wire strip mechanism 12, the wire transport mechanism 14, and the wire bending mechanism 18 and their relative positions so that the relative position at which the wire 70 is to be stripped is easily determined. It should be noted that this can be done.

  Following this step, the wire strip mechanism 136 returns to the standby position of FIG.

  Different attachment devices can comprise different components of the wire strip mechanism 136 without departing from the spirit and scope of the present invention.

  The strip pawl 138 can take other forms as long as it can accurately cut a thin layer of wire 70. Moreover, the use of the wire strip mechanism in the present invention is not limited to a rectangular wire. The strip pawl may be adapted to strip wires having other shapes.

  As long as the two strip claws 138 can be selectively separated, the strip pawl operation mechanism can take other forms. Furthermore, the two strip pawls 138 need not be attached to a common operating mechanism or be movable by a common linear actuator. Therefore, an independent mechanism can be provided.

  The strip pawl 138 is configured and sized to partially or completely strip the wire 70 around it.

  22 to 24, the wire cutting mechanism 138 is attached to the frame 26 in the vicinity of the wire bending mechanism 16.

  31-34 show the wire cutting mechanism 138 in more detail.

  The wire cutting mechanism 138 has a cutter 208 attached to the frame 26 so as to be movable between a position accommodated relative to the wire bending mechanism 16 and an extended position for cutting the wire 70. Is included. The cutter 208 includes a jaw cutting element 209 that is operable by the controller 18. When the wire cutting mechanism 138 is positioned in the extended position, the wire cutting mechanism 138 is configured so that the cutting element 209 of the cutter 208 has an axis formed by the groove of the groove element 84 of the wire bending mechanism 16, and thus the path of the wire 70. It is configured to intersect and is positioned relative to the wire bending mechanism 16.

  The cutter 208 is rotatably attached to the support bracket 210. The support bracket is slidably attached to the frame member 212 via sliding elements 214 and 216. More specifically, the cutter 208 is attached in a state of being fixed to the post 218. The post 218 is pivotally attached to the support bracket 210 via a pivot pin 220. The first cylinder 222 has a proximal end 224 attached to the support bracket 210 and the piston 228 of the first cylinder is pivotally attached to the post 218 so that the cutter 208 is pivotable. Is done. Since the second cylinder 230 is fixed to the frame member 212, the support bracket 210 is movable along the frame member 212. The first cylinder 222 and the second cylinder 230 are controlled by the control device 18.

  The operation of the wire cutting mechanism 138 will be described with reference to FIGS.

  The wire excision mechanism 138 is initially positioned at the retracted position with respect to the wire bending mechanism 16 as indicated by solid lines in FIGS. 33 and 34. When positioned in this position, the top of the cutter 208 is positioned lower than the elongated wire guide 73 and at approximately the same height as the wire 70 to provide a gap for operation of the wire bending mechanism 16. is doing. The relative positions of the cutter 208 and the wire bending mechanism 16 are well represented in FIG.

  When the wire bending mechanism 16 completes one step and the coil 132 is fully formed (see the dashed line in FIG. 34), the second cylinder 230 of the wire cutting mechanism 138 first turns the cutter 208 off. It operates to lift (see arrow 232), after which the first cylinder operates to rotate the cutter 208 toward the coil 132 (see arrow 234). The cutting element 209 is then closed to cut the wire 70 (see arrow 236 and broken line in FIG. 33). Thereafter, the wire cutting mechanism 138 returns to its own storage position shown in FIGS.

  As best shown in FIG. 34, the cutter 208 is further positioned relative to the axis formed by the path of the wire 70 so as to form a predetermined angle with the path of the wire 70.

  The wire cutting assembly 138 is attached to the frame 26 or includes a separate support structure (not shown). The same applies to the wire strip mechanism 12, the wire transport mechanism 14, the wire bending mechanism 16, the control device 18, and the wire strip mechanism 136.

  It will be appreciated by those skilled in the art that the devices described herein can be readily applied to wires having different sized rectangular cross-sections by changing the size of various elements in contact with the wire. It is.

  Similarly, the shape and size of the coil can be easily adjusted by changing the bending angle and feed length via the interface 19 of the controller 18.

  Although the wire winding device in the present invention has been described using a wire having a rectangular cross section, the present invention showing that the winding device 10 or the winding device 134 can be applied for wires having different shapes. Utilization is easily conceivable for those skilled in the art.

  In addition, although the actuator described in the present specification is a pneumatic actuator, it is easily conceivable for those skilled in the art that other techniques such as a hydraulic actuator and an electric actuator can be used. It is.

  Even though both of the wire winding devices 10 and 134 are described as having a single control device 18 that controls the operation of the wire drawing device 12, the wire transport mechanism 14, the wire bending mechanism 16, and the wire splitting mechanism These can be utilized to operate 136, wire cutting mechanism 138, and a plurality of controllers (not shown). A central controller (not shown) is used to coordinate these operations or a communication protocol is used.

  Finally, even though wire bending mechanisms, including wire stripping mechanisms, wire transport mechanisms, wire bending mechanisms, wire cutting mechanisms, and wire splitting mechanisms are described herein, some of these mechanisms are improved. Or can be omitted.

  While the invention is described herein by way of examples, the invention may be improved without departing from the spirit and scope of the invention as defined by the claims.

It is a perspective front view about the winding apparatus of the wire which has a rectangular shaped cross section in the 1st Example of this invention. FIG. 2 is a perspective rear view of the apparatus of FIG. 1. FIG. 2 is a top plan view of the apparatus of FIG. FIG. 2 is a front view of the apparatus of FIG. 1. It is a perspective view of the wire conveyance mechanism and wire bending mechanism of the apparatus of FIG. It is a side view of the wire holding part of the wire conveyance mechanism of FIG. It is a partial exploded view of the wire winding mechanism of the apparatus of FIG. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. FIG. 8 is a top plan view of the wire winding mechanism of FIG. 7 showing a procedure for winding one turn. It is a perspective view of the coil of the wire which has the completed rectangular cross section. It is a perspective front view which shows the wire winding apparatus which has a rectangular shaped cross section in the 2nd Example of this invention. FIG. 23 is a top plan view of the apparatus of FIG. FIG. 23 is a front view of the apparatus of FIG. It is a front right perspective view of the wire strip mechanism of FIG. FIG. 26 is a rear perspective view of the wire strip mechanism of FIG. 25. FIG. 26 is a front view of the wire strip mechanism of FIG. 25 showing the wire strip mechanism in a standby position. FIG. 26 is a front view of the wire strip mechanism of FIG. 25 showing the wire strip mechanism in a wire engagement position. FIG. 26 is a front view of the wire strip mechanism of FIG. 25 showing the wire strip mechanism in the process of moving to the wire strip position. FIG. 30 is an enlarged front view of section 30-30 of FIG. 29 showing the strip pawl and the greater finger of the wire strip mechanism. FIG. 23 is a perspective view of a wire cutting mechanism of the apparatus of FIG. FIG. 32 is a side view of the wire cutting mechanism of FIG. 31. It is a side view similar to FIG. 32 which shows operation | movement of a wire cutting mechanism. FIG. 24 is an enlarged top plan view of the wire bending mechanism and wire cutting mechanism of the apparatus of FIG. 22 along section 34-34 of FIG. 23, further illustrating the operation of the wire cutting mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Winding apparatus 12 Wire strip mechanism 14 Wire conveyance mechanism 16 Wire bending mechanism 18 Control apparatus 19 Interface 20 Transparent cover 22 Spool 24 Shaft 26 Frame 27 Motor 28 Pillow block 29 Drive belt 30 Pillow block 32 Carriage 34
36 Linear Bearing 38 Arrow 40 Pneumatic Cylinder 42 Wire Guide 44 Plate 46 Roller 48 Adjustable Wire Straightener 50 Bottom Roller 52 Top Roller 53 Wire Feeder 54 Table 55 Arrow 56 Grasping Arm 58 Shaft 60 Pillow Block 62 First End 64 Actuator 66 Second end 68 Friction pad 70 Wire 72 Wire guide 73 Slot 74 Wire holding assembly 76 Wire bending assembly 78 Bracket 80 Actuator 82 Piston 84 Groove element 85 Groove 86 Top plate 87 Base 88 Fixed roller 89 Groove 90 Rotating roller 91 groove 92 actuator 94 arrow 96 arrow 102 arrow 104 arrow 106 arrow 108 arrow 110 arrow 112 arrow 114 arrow 116 arrow 18 Arrow 132 coil 134 winding with 136 wire strip mechanism 138 wire cutting mechanism (strip nails)
139 Cutting edge 140 Strip claw movement mechanism 141 Beam 142 Finger grater 144 Wire gripping mechanism 146 Linear actuator 148 Mounting assembly 150 Interlock gear 152 Lever arm 154 Cylinder 156 Distal end 158 Piston 160 L-shaped bracket 162 Sliding element 166 Sliding element 166 L-shaped bracket 167 Cylinder 168 Piston 170 First longitudinal end 172 Plate 174 Length adjustable bolt 176 Mechanical stopper 178 Mechanical stopper 180 Blade 182 First friction plate 184 Second friction plate 186 Gripping actuator Assembly 188 Cylinder 190 Mounting bracket 192 Piston 194 Length adjustable assembly 196 Arrow 198 Arrow 200 Arrow 206 Core material 208 Limiter 209 jaw cutting elements 210 support bracket 212 frame member 214 sliding element 216 sliding element 218 post 220 pivot pin 222 first cylinder 224 proximal 228 piston 230 second cylinder 232 arrow 234 arrow 236 arrow

Claims (37)

A wire holding assembly for selectively fixing a wire, and a wire bending assembly for bending a selected portion of the wire at a predetermined angle when the wire is fixed by the wire holding assembly. A wire bending mechanism,
A wire transport mechanism for receiving the wire from a continuous feed and transporting a first length of the wire to the wire bending mechanism;
To control the operation of both the wire transport mechanism and the wire bending mechanism to sequentially bend the wire at a predetermined angle along the wire bending mechanism to form a coil made of a wire having a predetermined shape. A controller coupled to both the wire bending mechanism and the wire transport mechanism;
A wire winding apparatus comprising:   2. The wire strip mechanism of claim 1, further comprising a wire strip mechanism for receiving the spool of wire, unwinding the wire from the spool, and feeding the wire as a continuous feed to the wire transport mechanism. Wire winding device. The wire strip mechanism includes a spool shaft for receiving the spool of the wire, and a spool driving means coupled to the spool shaft for fixing the spool shaft;
3. The wire winding according to claim 2, wherein the spool driving means is further coupled to the control device in order to accurately unwind the spool of the wire when the control device is in control. Attached equipment.   4. The wire winding apparatus according to claim 3, wherein the spool driving means includes a motor and a pulley assembly for coupling the spool shaft to the motor. The wire strip mechanism is positioned downstream from the spool shaft and upstream from the wire transport mechanism to supply a predetermined second length of the wire to the wire transport assembly with a substantially constant tension. Further comprising a self-tensioning assembly,
The wire winding apparatus according to claim 3, wherein the self-tensioning assembly is controllably coupled to the controller. The spool shaft is attached to a frame;
The self-tensioning assembly acts on the carriage attached to the frame to move in a longitudinal direction relative to the spool shaft, and urges the carriage from the spool shaft and unwinds the wire. A cylinder attached to both the spool shaft and the carriage to hold the substantially constant tension;
6. The wire winding apparatus according to claim 5, wherein the carriage is for receiving the unwound wire from the spool and supplying the unwound wire to the wire transport mechanism. .   The wire winding apparatus according to claim 6, wherein the wire strip mechanism further comprises a limit switch coupled to the control device to inform the control device of the position of the carriage. The wire transport mechanism includes an elongated wire guide to guide the wire from the wire strip mechanism to the wire bending mechanism;
The carriage is configured to supply the unwound wire that is flush with the elongated wire guide and is positioned relative to the elongated wire guide. 6. The wire winding apparatus according to 6.   The wire strip mechanism further includes a wire straightener for manufacturing a straight wire by unwinding the wire of the spool and supplying the straight wire to the wire transport mechanism. The wire winding apparatus according to claim 2.   The wire winding apparatus according to claim 1, wherein the wire conveying mechanism includes an elongated wire guide for guiding the wire from the continuous feed to the wire bending mechanism.   The wire winding apparatus according to claim 10, wherein the elongated wire guide includes a slot for receiving the wire. The wire transport mechanism includes a table movable along the elongated wire guide, and a gripping arm attached to the table and movable between a standby position and a wire gripping position;
The gripping arm grips the wire on the elongated wire guide;
Both the table and the gripping arm are controllably coupled to the controller;
In operation, the wire transport mechanism for transporting a second length of wire to the wire bending mechanism includes: i) a function to stop the continuous feed; and ii) the gripping arm is attached to the elongated wire guide. The function of gripping the wire and iii) a function of moving the table from the predetermined distance corresponding to the second length toward the wire bending mechanism. Wire winding device. The gripping arm includes a first end with a friction pad for engaging the wire with the elongated wire guide, and a second end;
The gripping arm is rotatably attached to the table through an intermediate point that forms a fulcrum between the first end and the second end,
The gripping arm further includes an actuator having the second end attached to the table to rotate the gripping arm about the fulcrum between the standby position and the wire gripping position;
The wire winding device according to claim 12, wherein the actuator is controllably coupled to the control device.   The wire holding assembly is attached to one side of the wire receiving support, i) a wire receiving support having an opening for receiving the wire transported from the wire transport mechanism, and ii) A fixed friction element; and iii) a movable friction element for selective engagement through the opening and the fixed friction element for receiving the wire in the wire receiving support. The wire winding apparatus according to claim 1.   The wire bending assembly includes a base, a fixed roller attached to the base, and a rotatable roller attached to the base so as to rotate about the fixed roller. The wire winding apparatus according to claim 1, wherein   The wire winding device according to claim 15, wherein the rotating roller is attached in a state of being fixed to an actuator rotatably attached to the base. Both the fixed roller and the rotatable roller include a circumferential groove sized to snugly receive the wire;
The wire winding apparatus according to claim 15, wherein the fixed roller and the rotary roller are spaced apart from each other so as to closely receive the wire.   The wire winding device according to claim 1, further comprising a wire strip mechanism for stripping the second length of the wire conveyed from the continuous feed.   19. The wire wrapping device of claim 18, wherein the wire strip mechanism is controllably coupled to the control device such that the second length is determined by the control device. The wire strip mechanism includes at least one strip claw, a strip claw operating mechanism for moving the at least one strip claw between a standby position and a wire engagement position with respect to the wire, and selectively fixes the wire. And a linear actuator for moving the at least one strip claw along the wire between the second lengths when the wire is fixed by the wire gripping mechanism. In addition,
The wire winding apparatus according to claim 18, wherein the strip claw operation mechanism, the wire gripping mechanism, and the linear actuator are controllably coupled to the control device. The at least one strip claw includes a cutting edge;
The wire strip mechanism includes at least one greater finger having a blade such that the blade and the cutting edge are positioned at the same height when the wire strip mechanism is positioned at the wire engaging position. 21. The wire winding device according to claim 20, wherein the wire winding device is attached to each of the at least one strip claw. The wire strip mechanism includes an attachment assembly for attaching the at least one strip pawl to the strip pawl operating mechanism, and at least one for pivotally attaching each of the at least one strip pawl to the attachment assembly. And further includes two lever arms,
The strip pawl operating mechanism includes a first cylinder secured to the mounting assembly, operatively coupled to the lever arm, and controllably coupled to the controller. The wire winding apparatus according to claim 20. The wire strip mechanism is attached to a frame including a frame member positioned parallel to the second length;
The wire winding apparatus according to claim 20, wherein the strip claw operation mechanism is slidably attached to the frame member. The linear actuator includes a second cylinder fixed to the frame member and controllably coupled to the controller;
The second cylinder has a movable piston fixed to the strip claw operating mechanism so that the strip claw operating mechanism moves in an opposite direction along the frame member. Item 24. A wire winding apparatus according to Item 23.   25. The wire strip mechanism further includes two mechanical stoppers fixed to the frame member to limit movement of the strip pawl operating mechanism along the frame member. The wire winding apparatus as described in 2. The wire strip mechanism is attached to a frame including a frame member positioned parallel to the second length;
The wire strip mechanism is selectively abutted against the first friction plate by a first friction plate fixedly attached to the frame member, and a gripping actuator fixed to the frame; and 21. The wire winding apparatus according to claim 20, further comprising the second friction plate for fixing the wire between the first friction plate and the second friction plate.   The gripping actuator is controllably coupled to the control device, and has a reciprocal motion so that the second friction plate moves toward and away from the first friction plate. 27. The wire wrapping device of claim 26, including a cylinder operably coupled to the second friction plate so as to be able to.   19. The wire winding apparatus according to claim 18, wherein the wire strip mechanism includes a suction device for removing the wire residue generated by the wire strip mechanism. A wire cutting mechanism for cutting the wire;
The wire winding apparatus according to claim 1, wherein the wire cutting mechanism is attached to a frame in the vicinity of the wire bending mechanism. The wire cutting mechanism includes a cutter attached to the frame so as to be movable between a standby position for the wire bending mechanism and an extended position for cutting the wire;
30. The wire winding device according to claim 29, wherein the cutter is controllably coupled to the control device. The cutter is attached in a fixed state to the post,
The post is pivotally attached to a support bracket,
The support bracket is slidably attached to a frame member of the frame;
The wire cutting assembly is secured to the frame member to selectively slide the support bracket along the frame member toward and away from the wire bending mechanism A first cylinder attached to the support bracket and a second cylinder fixed to the support bracket, wherein the post is selectively rotated toward and away from the wire bending mechanism. The second cylinder having a movable piston secured to the post, and
31. The wire winding device according to claim 30, wherein both the first cylinder and the second cylinder are controllably coupled to the control device.   The control device includes a first control device coupled to the wire conveyance mechanism for controlling the operation of the wire conveyance mechanism, and the wire bending mechanism and the wire conveyance for controlling the operation of the wire bending mechanism. The wire winding device according to claim 1, further comprising a second control device coupled to the mechanism.   The wire winding apparatus according to claim 1, wherein the wire is a semi-rigid wire.   The wire winding apparatus according to claim 1, wherein the wire is a wire having a rectangular cross section. A wire holding assembly for selectively securing a wire; and a wire bending assembly for bending a selected portion of the wire when the wire is secured by the wire holding assembly. A wire bending mechanism,
A wire transport mechanism for receiving the wire from a continuous feed and transporting the wire to the wire bending mechanism;
To control the operation of both the wire transport mechanism and the wire bending mechanism, thereby forming a coil of the wire having a predetermined shape characterized by a series of wire lengths and intermediate angles of bending, A controller coupled to the wire transport mechanism and the wire bending mechanism;
With
The controller controls the wire transport mechanism to sequentially transport the series of wire lengths to the wire bending mechanism between two consecutive wire lengths, and a corresponding intermediate A wire winding apparatus configured to control the wire bending mechanism to bend the wire at an angle. A wire holding assembly for selectively securing a wire; and a wire bending assembly for bending a selected portion of the wire at a predetermined angle when the wire is secured by the wire holding assembly. Including a wire bending mechanism;
The wire transport mechanism for receiving the wire from a continuous feed and transporting a predetermined length of the wire to the wire bending mechanism;
In order to control the wire bending mechanism and the wire transport mechanism according to a predetermined sequence, to produce a coil of wire having a predetermined shape characterized by a series of wire lengths and intermediate angles of bending, A controller coupled to the wire conveying mechanism and the wire bending mechanism;
A wire winding apparatus comprising: Wire fixing means for selectively fixing the wire;
Wire bending means for bending a selected portion of the wire at a predetermined angle when the wire is fixed by the wire fixing means;
Wire conveying means for receiving the wire from a continuous feed and conveying a predetermined length of the wire to the wire bending means;
Control means coupled to the wire fixing means, the wire bending means, and the wire conveying means, wherein the wire is sequentially bent at a predetermined position along its longitudinal direction, thereby having a predetermined shape. The control means configured to control the operation of both the wire transport mechanism and the wire bending mechanism to produce a coil of wire;
A wire winding apparatus comprising:

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