JP2010006585A - Rectangular wire winding device and winding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent occurrence of gaps in a rectangular wire at a reversing position at collar parts on both sides of a bobbin, and winding turbulence such as overlapping of the rectangular wire upon performing ordered multilayer winding of the rectangular wire on the bobbin. <P>SOLUTION: In this winding method, the bobbin is reciprocated in the axial direction by a traverser, and the rectangular wire is wound in an ordered multilayer manner on the rotated bobbin. The traverse speed of the bobbin in the axial direction is sequence controlled. The bobbin is temporarily stopped at the reversing position where the collar parts at both ends of a barrel part of the bobbin and the rectangular wire come in contact with each other, so that the wire is dual layer wound to raise a layer. The traverse speed is increased and the bobbin is reversed so that the rectangular wire is not overlapped again on the raised layer, and the rectangular wire is biased toward the collar part sides by a wire pressing roller and gaps are reduced. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a winding method and a winding device for winding a rectangular wire around a bobbin in alignment, and more specifically, in a bobbin traverse method in which a bobbin reciprocates in an axial direction, The present invention relates to a winding method and a winding device.

In a flat wire winding device, the flat wire is wound in an axial direction from one end side to the other end side in the length direction of the bobbin, and the flat wire is wound in alignment, and is reversed at a position in contact with the flange portion of the bobbin winding end. Then, after the layer is turned upside down, it is reciprocated from the other end side to the one end side, and this operation is repeated to wind the bobbin rectangular wires in a multilayered manner.
When this type of flat wire is aligned and wound around a bobbin in multiple layers, there is a problem that a gap or a flat wire adjacent to the same row is likely to overlap between the bobbin ridge and the flat wire in the upward layer. .

Conventionally, as this type of wire winding device, Japanese Patent No. 3588588 has been provided.
As shown in FIG. 9, the wire supply portion of Patent Document 1 is provided with a wire supply pulley 4 at the tip of a rotating plate 3 rotatably mounted on a support plate 2 of a traverser 1 reciprocated in the axial direction of the bobbin. The base end of the arm 5 is connected. The rotating plate 3 is urged by a spring 6 in a direction in which the pulley 4 is pulled back, the spring force of the spring 6 is controlled by a spring force adjusting device 7, the pressing force of the wire is adjusted, and adjacent wires are brought into close contact with each other. Aligned winding. Further, at the portion that is folded back from the upper layer to the lower layer, the convex engagement portion 3 a provided on the rotary plate 3 is engaged with the concave engagement portion 9 that is moved by the rotation restricting cylinder 8 to lock the rotation operation of the rotary plate 3. is doing.

  In the winding device of Patent Document 1, at the portion where the wire is folded back from the lower layer to the upper layer, the rotation of the rotating plate 3 is stopped and an urging force that reverses the rotating plate by the spring 6 is applied so that the wire is at the side end of the bobbin. When it hits the inner surface of the heel part, it will naturally reverse (line), it will be wound in the opposite direction, the spring 6 will give the force to climb up the upper layer, and the cross part will be folded back smoothly It is said that no turbulence will occur.

  However, as in Patent Document 1, when the rotation force of the spring 6 is increased in the state where the rotation of the rotating plate is stopped at the folded end of the drawn-out wire, the lock is released and the wire is wound around the bobbin. However, the problem that gaps are easily generated between the wound wire rods and twisting of the wire rods is not solved. In addition, when the wire rod itself is strongly pressed by the spring force of the spring, the wire rods overlap each other, or the wire rods are strongly rubbed against the bobbin's buttocks, causing damage to the wire rods. Furthermore, since a large number of fixtures are mounted on the support base 2 on which the traverser 1 is reciprocated to hold the wire rod, the traverser's moving driving force becomes large, and when the traverser is controlled to move, It is difficult to perform accurate movement control with high accuracy.

Japanese Patent No. 3588588

  The present invention has been made in view of the above problems, and it is an object of the present invention to prevent a gap or an overlap of adjacent rectangular wires from occurring at a portion that is folded back at a reversal position generated in Patent Document 1 and rises.

In order to solve the above-mentioned problem, as a first invention, a bobbin is reciprocated in the axial direction by a traverser, and a winding method for winding a rectangular wire in a multi-layered arrangement on a rotationally driven bobbin,
The traverse speed in the axial direction of the bobbin is sequence-controlled, paused at the reversing position where the flat part of the bobbin ends and the flat wire are in contact with each other, rolled up and layered, and then the flat wire is again turned into the layered line. The flat angle is characterized in that the traverse speed is increased so as not to overlap (hereinafter referred to as “quick winding reversal”), and the flat wire is urged toward the heel by the wire presser roller to reduce the gap. Provides a method of winding the wire.

In the present invention, the control of the rotation angle of the winding of the flat wire around the bobbin and the wire presser for reducing the gap between the flat wire and the bobbin ridge and the gap between the flat wires are performed independently, and the layer after inversion rises. By providing a large gap between the flat wire and an upper flat wire wound adjacent to the flat wire, it is possible to prevent the flat wire from overlapping, and to prevent the generated large gap from being pressed by the line press roller. As a result, the flat wire is urged toward the bobbin collar portion to reduce the gap.
By taking the rectangular wire winding method at the reversing position as the above-mentioned method, the winding at the reversing position where the winding disturbance such as gaps and overlaps is easily generated by the multilayer aligned winding of the rectangular wire is generated. It can be wound up without any problems.

Further, the traverse is temporarily stopped after the quick winding, and the rectangular wire wound in the S shape by the pressing to the rectangular wire by the wire pressing roller is shifted to the oblique parallel winding.
That is, a gap is generated between the rectangular wire on the upper layer superimposed on the rectangular wire on the lower layer at the reversal position and the adjacent rectangular wire to which the quick winding is performed. It will be in the state wound in the shape of a letter. If it winds in this state, it will be difficult to eliminate the state in which the flat wire is wound in an S shape over the entire length of the bobbin body. Therefore, since it is necessary to eliminate the state of the S-shaped winding, in the low-speed moving operation region after the rapid traverse movement and the primary stop, by taking 2 to 10% wider than the winding pitch and the width of the rectangular wire, The S winding of the wire can be gradually shifted to the oblique parallel winding.

  Specifically, in a state where the traverse is temporarily stopped at the reversal position, the rectangular wire is wound about 1.5 times in parallel with the bobbin's buttock, and the upper rectangular wire is in a state of being half-wrapped on the lower rectangular wire, After the remaining half circumference is wound quickly, the winding is temporarily stopped for 2 to 3 turns, and then wound at a constant pitch, and the S-shaped winding is gradually shifted to parallel winding.

  The wire pressing roller is urged by a spring so as to abut on the opposite side surface and the upper surface of the flat wire, and is moved in synchronism with winding of the flat wire, and is moved away from the bobbin side at a required position. Yes.

As described above, by controlling the spring force that urges the wire pressing roller, it is possible to load the flat wire with an appropriate pressing force according to the winding area of the flat wire around the bobbin. In addition, the gap can be maintained within an appropriate range of about 2 to 10% of the width of the flat wire. As a result, by not generating a large gap between the rectangular wires, it is possible to prevent the turbulence caused by the drop of the upper rectangular wire into the gap or the overlapping of the rectangular wires because the gap between the rectangular wires is too small.
The wire pressing rollers are provided in a pair on the left and right, and one wire pressing roller is positioned on the bobbin side at the reversal position and is brought into contact with a flat wire, and after moving substantially synchronously with the traverse to the vicinity of the flange on the other end side. Moves away from the bobbin side, gradually reduces the urging force of the spring toward the separation position, and moves the other line pressing roller toward the bobbin side at the reverse position on the other end side after separating the line pressing roller In contact with the flat wire.

A flat wire winding device capable of performing the flat wire winding method of the first invention is provided as a second invention. That is,
A winding device that moves a bobbin back and forth in the axial direction with a traverser and winds a rectangular wire in multiple layers on a rotationally driven bobbin. The moving speed of the bobbin by the traverser is variable depending on the winding area of the rectangular wire around the bobbin. Traverse control means for controlling;
A wire presser roller that urges the flat wire that is reversed and rises at a position in contact with the heel of the bobbin shaft end toward the heel side;
Wire pressing roller drive control means for moving the wire pressing roller close to and away from the bobbin and reciprocating in the axial direction of the bobbin;
A flat wire winding device is provided.

The traverse sequence control is performed by controlling a motor that traverses a bobbin mounting shaft and a moving table on which a motor that rotates the bobbin is mounted. The central part sandwiched between is a constant speed moving operation,
The variable speed movement operation is a driving pattern in which the traverse is temporarily stopped at a position where the flat wire is in contact with the rod, rapidly moved after the stop, temporarily stopped after the rapid movement, and moved at a constant speed after the stop,
The wire presser roller drive control is performed by projecting an arm with a wire presser roller attached to the tip of the moving table via a rotating means. The rotating drive means and the moving means of the moving table use an air cylinder to switch air. The solenoid valve is controlled in sequence, and the presser roller is brought into contact with the bobbin immediately before reversing with the heel, and the rectangular wire is urged toward the heel by the presser roller during the temporary stop after the rapid traverse movement. Thus, the flat roller is moved in the same direction as the winding direction of the flat wire, and the presser roller is moved away from the bobbin side at a predetermined position.

The traverse and the presser roller are controlled by a sequence control in which a program is created in advance and driving means such as a motor is controlled based on the program.
Therefore, conventionally, it is not necessary for the worker to eliminate the gap generated in the reversal region or to correct the overlapping of the aligned rectangular wires, thereby saving labor.

  A pair of left and right line pressing rollers are provided. The pair of left and right wire pressing rollers are attached to the tip of an arm projecting through a rotating means to a moving means that moves in synchronization with the traverse direction of the flat wire, and the arm is moved to the bobbin side by the rotating means. It is made the structure which made it move away from the bobbin side after making it approach and moving a required distance.

As the rectangular wire used in the present invention, an enameled wire in which an insulating paint is baked and applied to a single core wire made of a metal conductor such as copper is preferably used.
For example, the enameled wire has a thickness of 0.5 to 5.0 mm and a width of 1.0 to 10.0 mm. Even when the enameled wire having an extremely thin width is wound in a multi-layered manner, the turbulence and gaps are reversed at the inversion position. It can wind up without generating.
Note that the present invention can also be applied to a covered electric wire having a rectangular cross section other than the enameled wire.

As described above, according to the rectangular wire winding method of the present invention, the traverse speed control is performed, the speed change operation is performed in the reversing region, the traverse is temporarily stopped at the reversing position, and about 1.5 laps are repeatedly wound. The layers are raised and reversed, and after reversal, the traverse speed is increased and quick winding is performed to increase the gap between adjacent rectangular wires to prevent the rectangular wires from overlapping. The large gap is eliminated or reduced by pressing the flat wire to the reverse position on the flange side by a line pressing roller provided separately from the traverser.
Therefore, it is possible to prevent the occurrence of a gap at the reversal position, which could not be eliminated in the conventional multilayered winding of rectangular wires, and the occurrence of winding disturbance such as overlapping and twisting.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of the entire winding device for a rectangular wire. A bobbin 11 for winding a rectangular wire 10 made of enameled wire is detachably attached to a spindle 12 for attaching a bobbin, and the spindle 12 is connected via a gear. The torque motor 40 is rotationally driven with a constant tension. The flat wire 10 is fed out from a fixed arm guide 20, and the bobbin 11 is reciprocated by a traverser 13 disposed below the bobbin 11, and the flat wire 10 is wound around the outer peripheral surface of the reciprocating bobbin 11 in the axial direction.

  As shown in FIG. 1, the bearing member 12a that rotatably supports the spindle 12 is fixed to the vertical portion 19a of the L-shaped support member 19, and the torque motor 40 is mounted on the horizontal portion 19b of the support member 19. It is installed. The support member 19 is fixed on the moving table 16 of the traverser 13 disposed below the bobbin 11. The moving table 16 is mounted on the fixed table 15 so as to be movable in parallel with the axial direction L of the bobbin 11. Specifically, a screw shaft 17 arranged in parallel to the axial direction L of the bobbin 11 is rotatably attached to the fixed base 15, and the screw shaft 17 is rotationally driven by a servo motor 18. A screw hole to be screwed into the screw shaft 17 is provided in the moving table 16, and the moving table 16 is moved according to the rotation of the screw shaft 17.

  When the screw shaft 17 is rotated by the servo motor 18, the moving table 16 is moved in parallel with the bobbin 11 and the axial direction L, and the servo motor 18 is rotated forward and backward to reciprocate the moving table 16.

In the present embodiment, the rotational speed of the servo motor 18 is changed, and the moving speed of the moving table 16 is sequence-controlled via the screw shaft 17. By controlling the movement speed by the rotation control of the servo motor 18 (hereinafter referred to as traverse control), the winding rotation angle of the flat wire 10 around the bobbin 11 rotating at a constant tension is controlled.
That is, when the movement is stopped, the flat wire 10 is wound around the cylindrical body 11a of the bobbin 11 so as to overlap vertically, and the winding rotation angle becomes 0 degree. On the other hand, when the moving speed is increased, the winding rotation angle around the bobbin 11 gradually increases and quick winding is performed.

  The traverse sequence control is performed by changing the operation pattern (that is, the moving speed) in accordance with the winding region of the flat wire 10 around the bobbin 11 to control the winding rotation angle of the flat wire 10 onto the bobbin 11. . Details of the operation pattern of the traverse control will be described later.

Further, below the bobbin 11, a pair of left and right wire pressing rollers 14 (14-1, 14) that urge the flat wire 10 wound around the cylindrical body 11a of the bobbin 11 to the inner surfaces of the flanges 11b on both sides of the cylindrical body 11a. 14-2).
As shown in FIG. 2, the wire pressing rollers 14 (14-1 and 14-2) are attached to the distal ends of the arms 25 </ b> A and 25 </ b> B, and a pair of rotations in which the base ends of the arms 25 </ b> A and 25 </ b> B are mounted on the moving table 23. The base end is pivotally attached to the air cylinder 24 (24A, 24B). The rotation of the arms 25A and 25B in the direction indicated by the arrows displaces the line pressing roller 14 between the start position and the start release position. The activation position is a downward movement position that brings the arms 25 </ b> A and 25 </ b> B closer to the bobbin 11 side, and the activation release position is an upper return position away from the bobbin 11.

  The moving table 23 is mounted on the straight traveling cylinder 22 so as to be reciprocally movable in the direction of the arrow, and is a stopper for finely adjusting the moving amount of the moving table 23 on the frames 22a and 22b protruding from both ends of the straight traveling cylinder 22, respectively. Screws 26A and 26B are attached.

  As shown in FIG. 3A, the line pressing rollers 14 (14-1, 14-2) to be attached to the distal ends of the arms 25 (25A, 25B) are installed in the mounting holes provided at the distal ends of the arms 25, respectively. The support shaft 30 is slidably held in a direction parallel to the axial direction L of the bobbin 11. The line pressing roller 14 is fitted and fixed to one end of the roller support shaft 30, and the line pressing roller 14-1 arranged on the right side in the axial direction of the bobbin 11 is arranged toward the flange 11 b side at the right end. 11, the line pressing roller 14-2 disposed on the left side in the axial direction is disposed toward the flange 11b at the left end.

  The left and right roller support shafts 30 have springs 32 interposed between the line pressing rollers 14 (14-1, 14-2) and the arms 25 (25A, 25B), and the other end side of the roller support shafts 30. The collar 33 is fixed, and the pressing force of the line pressing roller 14 is adjusted by the spring 32 according to the dimension of the gap C between the collar 33 and the arm 25. The gap C is adjusted based on the width of the flat wire 10, and details of the gap dimension will be described later.

Each wire pressing roller 14 (14-1, 14-2) is made of a resin molded product, and its shape is large and small with a small diameter cylindrical portion 14b protruding from the tip of the large diameter cylindrical portion 14a as shown in FIG. It has a two-stage cylinder shape. The stepped dimension H between the large-diameter cylindrical part 14a and the small-diameter cylindrical part 14b is approximately equal to the thickness T of the rectangular wire 10, and the axial dimension L1 of the small-diameter cylindrical part 14b is 2 of the width W of the rectangular wire 10. It is doubled. The axial direction of the outer peripheral surface of the large diameter cylindrical portion 14a is the same as that of the small diameter cylindrical portion 14b.
The enameled wire made of a rectangular wire used in the present embodiment has a thickness T of 1.7 mm and a width W of 1.9 mm.
The wire pressing roller 14 composed of the large-diameter cylindrical portion 14a and the small-diameter cylindrical portion 14b is attached to the tip end of the roller support shaft 30 so as to be freely rotatable.

  The traverse sequence control of the moving table 16 is performed by the servo motor 18, and the rectangular wire pressing sequence control by the wire pressing roller 14 is provided in the air piping to the straight air cylinder 22 and the rotating air cylinder 24. This is done by electromagnetic valve switching control.

  In the winding device for the flat wire 10 having the above-described configuration, the flat wire 10 fed from the arm guide 20 to the bobbin 11 is wound from one end side in the longitudinal direction of the cylindrical body 11a of the bobbin 11 through the pulley 18, The moving table 16 is moved by a servo motor 18 and is pitch-wound along the axial direction L of the cylindrical body 11a toward the flange 11b at the other end. When the flat wire 10 reaches the flange portion 11b, the flat wire 10 is reversed and moved up to the upper layer, pitched in the same manner as described above toward the opposite flange portion 11b, and this reciprocating operation is repeated, whereby the flat wire 10 is moved to the bobbin 11 The cylindrical body portion 11a is wound in a multi-layer aligned manner.

  In the winding process of the flat wire 10 to the bobbin 11, the winding is performed between the flat wire 10 and the inner peripheral surface of the hook portion 11b at the reverse position at the flange portions 11b on both sides, and between the adjacent rectangular wires 10 of the inverted upper layer. The traverse sequence control and the pressing control of the flat wire 10 by the wire pressing roller 14 are performed as follows so as not to generate an air gap that does not cause turbulence and to cause an overlap between adjacent flat wires. Is going.

First, the traverse sequence control will be described with reference to FIGS. 4 (A) and 4 (B) and FIGS. 5 (A) to 5 (D).
As shown in FIG. 4A, the reversal region S adjacent to the flanges 11b at both ends of the cylindrical body 11a of the bobbin 11 is a speed change operation consisting of three operation patterns, and the moving speed of the traverser moving base 16 is servoed. The speed is changed by the motor 18. The center area M sandwiched between the inversion areas S on both sides is set to a constant speed operation. In FIG. 4B, the speed change operation is indicated by a thick solid line, and the constant speed operation is indicated by a thin solid line.

  In the constant speed operation in the central region M shown in FIG. 5A, the pitch winding is performed with a gap X of 2 to 10% of the width W of the rectangular wire 10 between the adjacent rectangular wires 10 in the same row. Traverse control is performed so that the adjacent rectangular wire 10 does not get on. In addition, it is set as the constant speed driving | operation from the winding start position of the flat wire 10 of the first layer.

  The speed change operation consisting of the three operation patterns of the reversal region S includes a reversal position S1 where the flat wire 10 contacts the collar portion 11b, and a start position S2 where the flat wire after reversing and rising to the upper layer is quickly wound. The operation pattern is changed at each position of the stop position S3 where the quick winding is performed 2-3 times.

When the flat wire 10 reaches the reversal position S1, the servo motor 18 is stopped to temporarily stop operation, and the flat wire 10 that is in contact with the inner surface of the flange portion 11b is overlapped at the same position in parallel with the flange portion 11b. As shown in FIG. 5C, the flat wire 10u1 is raised to the upper layer.
Specifically, when the temporary operation is stopped at the reversal position S1, the flat wire 10 is wound around the bobbin cylindrical body 11a by 1.5 turns and is shown in FIGS. 6A, 6B, and 6C. In this way, the lower layer of the rectangular wire 10d1 for one rotation and the upper layer of the rectangular wire 10u1 are overlapped by 0.5 rounds.

  The flat wire 10 rises to the upper layer in contact with the flange portion 11b at the reversing position S1, and the traverse speed from the quick winding start position S2 to the stop position S3 after 0.5 wraps is about 3 to 8 times the steady speed. However, preferably about 6 times faster, the latter half of the flat wire 10u1 and 10u2 to 10u4 are quickly wound around the cylindrical body 11a of the bobbin 11. In this quick winding, a gap X1 of about 10 to 60% with respect to the width W of the flat wire 10 is generated, and the adjacent flat wire 10 is wound so as not to overlap at the upper layer position after inversion.

  Since the flat wire 10u1 that is the upper layer at the reversal position S1 is quick-winding for the remaining 0.5 laps and the winding rotation angle becomes large, it is shown by cross diagonal lines in FIG. 6C between the flange portion 11b. A gap K is generated in As shown in FIGS. 6D and 6E, the gap K is reduced by urging the flat wire 10u1 toward the flange portion 11b by the line pressing roller 14-1, so that the small triangle shown in FIG. Only the shape gap j is left.

  In order to make the gap K into a small triangular gap j, the traverse is temporarily stopped after the quick winding, wound 2-3 times, and the rectangular wire 10 is urged toward the flange 11b by the wire pressing roller 14-1. Thereafter, the steady operation is performed.

As described above, quick winding is performed to prevent the flat wires 10u1 to 10u4 from overlapping after reversal, and the gap X1 generated by the quick winding is packed by the wire pressing roller 14-1 so that adjacent flat wires are in contact with each other. Has decreased.
Hereinafter, the operation of the wire pressing roller 14 will be described.

  Before the flat wire 10 comes into contact with the right end collar 11b and reaches the reversal position S1, the arm 25A of the wire pressing roller 14-1 is activated by the air cylinder 24 for rotation, and the lower flat wire wound around the bobbin 11 is used. The wire 10 is lowered to a position where the outer peripheral surface of the large-diameter cylindrical portion 14a comes into contact with the wire 10, and the side end surface 10s of the upper rectangular wire 10 in which the tip surface of the small-diameter cylindrical portion 14b is inverted is brought into contact.

A pressing force applied to the flat wire 10 by the wire pressing roller 14 is generated by the spring 32.
As described above, the pressing force by the spring 32 is such that the gap C between the arm 25 and the collar 33 is adjusted by the width of the flat wire 10, and at the time of setting shown in FIG. A gap corresponding to the width of 5 to 1 is made.
When the gap K and the large gap X1 are eliminated after the rectangular wire 10 is inverted, the gap C between the arm 25 and the collar 33 is expanded to one or two of the rectangular wires 10 as shown in FIG. The spring 32 is compressed by reducing the distance between the arm 25 and the wire pressing roller 14 to increase the spring force applied to the wire pressing roller 14. By pressing the flat wire 10u1 toward the flange portion 11b by the wire pressing roller 14-1 having a large spring force, as shown in FIG. 6D, 0.5% of the rear winding portion of the flat wire 10u1 is obtained. The flange 11b and the flat wire 10u1 are brought into contact with each other only by leaving the minute gap j shown in FIG. 6E in the triangular gap K generated between the circumference and the flange 11b. Further, the large gap X1 generated between the adjacent ones of the rectangular wires 10u1 to 10u4 is eliminated.

Thereby, the side edges of the flat wires 10u4 to 10u1 are in contact with each other, and the flat wire 10u1 at the reversal position is in contact with the inner surface of the flange portion 11b without a gap.
In this state, in order to eliminate the gap K, the rectangular wires 10u1 to 10u4 are bent and wound in an S shape as shown in FIG. 6 (F).
Therefore, after the quick operation by the traverse control, the traverse is temporarily stopped, the rectangular wire 10u5 is wound around the cylindrical body portion 11a of the bobbin 11 in the direction perpendicular to the axis (winding rotation angle 0 °), and from the S-shaped winding state, It is made to shift to the oblique winding state where the flat wire is not bent.

The wire pressing roller 14-1 contacts the bohin 11 via an arm 25A protruding from the rotating air cylinder 24 on the moving base 24 attached to the upper surface of the straight air cylinder 22, and the bobbin 11 is shown in FIG. Move from left to right as shown in 7 (B).
In order to gradually weaken the spring force from the reversal position S1, the gap C between the arm 25 and the collar 33 is gradually reduced, the spring 33 is extended, and the spring force applied to the wire pressing roller 14 is reduced, and the length of the bobbin 11 The gap C is eliminated when the position closer to the flange 11b at the left end than the central position in the direction is reached. When reaching this position, the arm 25A is raised to release contact with the flat wire 10 and return to the return position.
At this return position, a gap is formed between the wire pressing roller 14 and the flat wire 10 as shown in FIG.

  When the flat wire 10 reaches the position before reversal close to the left end collar 11b, the left line pressing roller 14-2 descends toward the bobbin 11 and performs the same operation as the line pressing roller 14-1. In this way, at the reversal positions where the flat wire 10 is in contact with the flanges 11b on both sides of the bobbin 11, the wire pressing rollers 14-1 and 14-2 perform the operation of eliminating the gaps K and X1, respectively, and then the lowered state. The other end is moved in synchronization with the traverse toward the flange 11b side of the other end, and is raised to the return position before coming into contact with the flange 11b at the other end.

  The wire pressing roller 14 (14-1, 14-2) is configured such that the tip of the small diameter cylindrical portion 14b contacts the side end surface 10s of the flat wire 10 to adjust the gap X between the flat wires 10, while the large diameter tube The lower outer peripheral surface of the portion 14a presses the upper surface of the lower flat wire 10 so as to be in close contact with the flat wire 10 to be wound in multiple layers.

  As described above, the gap between the rectangular wires 10 wound in a multi-layered manner is set around the entire length of the cylindrical body portion 11a of the bobbin 11 by the pressing operation of the rectangular wire 10 by the pair of left and right wire pressing rollers 14-1 and 14-2. The gap is controlled, and the aligned winding in which the upper rectangular wire is located at the boundary position of the lower rectangular wire is held.

The flat wire 10 wound around the cylindrical body 11a of the bobbin 11 in the winding process described above is in the state shown in FIG.
That is, at the reversal position in contact with the flange portion 11b, the flat wire 10 turns in parallel and rises up, and the flat wire 10u1 that goes up is quickly wound around the flat wire 10u2 wound adjacently. A state in which the flat wire 10u2 does not run on the wire 10u1 is brought about.
The rectangular wires 10u2 to 10u4 that are quickly wound after the reversal are wound in an S shape, but the gap between the rectangular wires is narrowed by the wire pressing roller 14.
Since the traverse is temporarily stopped after the quick winding and the rectangular wire 10u5 is wound around the bobbin 11 with the winding rotation angle being 0 degree, the S-shaped winding curve is gradually recovered, and the central region M of the cylindrical body 11a is obliquely parallel. It becomes a roll.

  As described above, according to the present invention, the rectangular wires 10 that are inverted by the flanges 11b on both sides of the bobbin 11 to be layered are eliminated from being overlapped, and a gap is eliminated between adjacent rectangular wires in the same row. Therefore, gaps and overlaps that have conventionally occurred at the reversal position can be automatically eliminated by controlling the traverse control and the wire pressing roller.

  The present invention is not limited to the above-described embodiment. For example, a cylinder may be used as a traverser movement source, and traverse sequence control similar to that of the above-described embodiment may be performed using the cylinder.

1 is an overall schematic front view of a flat wire winding device of the present invention. It is a perspective view which shows the drive mechanism of a wire pressing roller. The line pressing roller is shown, (A) is a drawing showing the relationship between the bobbin collar and the line pressing roller, and (B) is a drawing showing the relationship between the line pressing roller and the flat wire. FIG. 5A is a schematic diagram showing a relationship between a winding position of a flat wire and an operation control position, and FIG. 5B is a diagram showing a relationship between the total length of the bobbin and the traverse control. (A)-(E) are drawings which show the winding state of the flat wire in each operation pattern. (A) is a cross-sectional view at the reversal position in contact with the buttock, (B) is a plan view at the reversal position, and (C) is a gap generated between the flat wire 10u1 of the raised upper layer and the buttock. (D) is a front view showing a state in which the line pressing roller is applied to eliminate the gap, (E) is a plan view showing a state in which the gap is reduced by the line pressing roller, and (F) is a quick view. It is a top view which shows the state which is reducing the clearance gap between the wound rectangular wires. (A), (B), and (C) are drawings showing the relationship between the position of the line pressing roller and the spring force of the sbling. It is a top view which shows the state by which the flat wire was wound around the bobbin. It is a perspective view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Flat wire 10d1 Flat wire of lower layer of inversion position 10u1 Flat wire of upper layer of inversion position 10u2 to 10u4 Flat wire of quick winding of upper layer 11 Bobbin 11a Cylindrical body portion 11b Hook portion 12 Spindle 13 Traverser 14 (14-1, 14- 2) Wire presser roller 14a Large diameter part
14b Small-diameter portion 22 Linear cylinder 23 Moving base 25A, 25B Arm S Inversion area
S1 Reverse position S2 Quick winding start position after reverse S3 Temporary stop position M Central area

Claims (7)

A winding method in which a bobbin is reciprocated in an axial direction with a traverser, and a rectangular wire is wound in a multi-layered manner on a rotationally driven bobbin.
The traverse speed in the axial direction of the bobbin is sequence-controlled, paused at the reversing position where the flat part of the bobbin ends and the flat wire are in contact with each other, rolled up and layered, and then the flat wire is again turned into the layered line. A method of winding a rectangular wire, wherein the traverse speed is increased so as not to overlap, the wire is reversed and the rectangular wire is urged toward the flange by a wire pressing roller to reduce the gap.   2. The traverse is temporarily stopped after quick winding performed at a higher traverse speed, and the rectangular wire wound in an S shape by the pressing to the rectangular wire by the wire pressing roller is shifted to oblique parallel winding. The winding method described in 1.   With the traverse temporarily stopped at the reversal position, a flat wire is wound about 1.5 times in parallel with the bobbin ridge, and the upper flat wire is half-wrapped around the lower flat wire, and is reversed by quick winding. Then, the winding method of the rectangular wire according to claim 2, wherein after that, the traverse for 2-3 laps is temporarily stopped.   The wire pressing roller is urged by a spring so as to abut on the opposite side surface and the upper surface of the flat wire, and is moved in synchronism with winding of the flat wire, and is moved away from the bobbin side at a required position. The flat wire winding method according to any one of claims 1 to 3. A winding device that moves a bobbin back and forth in the axial direction with a traverser and winds a rectangular wire in multiple layers on a rotationally driven bobbin. The moving speed of the bobbin by the traverser is variable depending on the winding area of the rectangular wire around the bobbin. Traverse control means for controlling;
A wire presser roller that urges the flat wire that is reversed and rises at a position in contact with the heel of the bobbin shaft end toward the heel side;
Wire pressing roller drive control means for moving the wire pressing roller close to and away from the bobbin and reciprocating in the axial direction of the bobbin;
A winding device for a rectangular wire, comprising: The traverse sequence control is performed by controlling a motor that traverses a bobbin mounting shaft and a moving table on which a motor that rotates the bobbin is mounted. The central part sandwiched between is a constant speed moving operation,
The variable speed movement operation is a driving pattern in which the traverse is temporarily stopped at a position where the flat wire is in contact with the rod, rapidly moved after the stop, temporarily stopped after the rapid movement, and moved at a constant speed after the stop,
The wire presser roller drive control is performed by projecting an arm with a wire presser roller attached to the tip of the moving table via a rotating means. The rotating drive means and the moving means of the moving table use an air cylinder to switch air. The solenoid valve is controlled in sequence, and the presser roller is brought into contact with the bobbin immediately before reversing with the heel, and the rectangular wire is urged toward the heel by the presser roller during the temporary stop after the rapid traverse movement. 6. The flat wire winding device according to claim 5, wherein the flat wire is moved in the same direction as the winding direction of the flat wire, and the presser roller is moved away from the bobbin side at a predetermined position.   The wire pressing rollers are arranged on the opposite side of the traverser with the bobbin interposed therebetween, and are provided with a pair in the bobbin axial direction, and the pair of wire pressing rollers move in synchronization with the same direction as the traverse direction of the rectangular wire. The flat wire winding according to claim 6, wherein the arm is attached to the tip of an arm projecting through a rotating means, and the arm is brought close to the bobbin side by the rotating means and moved away from the bobbin side after moving a required distance. Taking device.

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