JP2000301272A - Method and device for production of wire coil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a wire introduction state of a wire holding member constant by setting a reel coiled with a wire in a bundle to a reel stand, inserting a pay out end of the wire into a fitting space through the wire holding member, rotating a core shaft and moving a wire supply truck at a speed corresponding to a coil pitch. SOLUTION: A rotary core shaft 3 suitable for a coil diameter is mounted to a chuck 2. A wire is paid out from a wire supply reel 24 and then is held to a wire holding member 7, the tip of the wire is inserted into a fitting space of the chuck 2. A rotary core shaft 3 is rotated by rotating the power driven chuck 2, the wire is coiled to the rotary core shaft 3. A feed base 5 and the wire holding member 7 are moved together with the wire supply reel 24 at a speed corresponding to a prescribed coil pitch. When the feed base 5 is moved by corresponding to a prescribed spring length, a feed motor is stopped, the wire between the core shaft 3 and the wire holding member 7 is cut, a product is taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and an apparatus for manufacturing a wire coil.

[0002]

Prior to this, the present inventor has developed a device capable of mass-producing a coil spring having an automatically formed end winding portion without requiring any manual operation (Japanese Patent Publication No. 1-16581). Generally, in this prior art, a feed bar is slidably mounted on a guide bar installed in parallel with a rotating core shaft, and a wire is introduced to the outer periphery of the core shaft via a guide roller attached to the feed bar. After the tip is fixed, the core shaft is rotated to wind a wire around it, and the winding component is used to gradually move the feed stand against the frictional force with the guide bar, thereby winding the coil. After forming a predetermined portion, a feed pitch is forcibly moved by a feed nut to form a coil pitch winding portion.

[0003]

However, since the wire supply unit is placed on the floor in front of the apparatus and the wire is fed out therefrom, the state of introduction of the wire into the wire guide roller with the movement of the feeder (introduction) Angle, etc.)
It was impossible to form a coil with high accuracy. An object of the present invention is to solve the above-mentioned problems and to provide a method and an apparatus for manufacturing a wire rod coil in which the state of introduction of the wire into the wire holding member is constant.

[0004]

Means for Solving the Problems To solve the above problems, the configuration of the present invention is as follows. That is, the method of the first configuration includes a chuck that is powered and rotated, a rotating core shaft that is detachably attached to the chuck and has a wire material wound around its outer periphery, and a rotating shaft that is long in the left-right direction. A feed bar having a guide bar installed on the front surface, a wire holding member slidably mounted on the guide bar so as to guide the wire to the outer periphery of the core shaft, and A wire holding member moving unit that reciprocates along a bar, a guide rail that is long in the left-right direction provided on a rear surface of the apparatus main body, a wire feed trolley movably mounted on the guide rail, and the wire feed Using a reel stand erected on a cart, a reel on which a wire is wound in a bundle is set on the reel stand, and the feeding end of the wire is fitted into the fitting space of the chuck through the wire holding member. Wherein rotating the core shaft, its at a speed corresponding to the coil pitch to be molded to the rotation speed to move the wire feed carriage together with the feed table, it is to wind the wire on the outer periphery of the core shaft.

[0005] The apparatus of the second configuration is a power-operated chuck, a rotatable core shaft detachably attached to the chuck and having a wire wound around the outer periphery thereof, and an apparatus main body parallel to the core shaft. A guide bar erected in front of the
A feeder provided with a wire holder that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft;
A wire holding member moving unit that reciprocates the wire holding member along the guide bar, wherein the wire is guided by the wire holding member with one end attached to the chuck, and with rotation of the core shaft. The feed base moves in the forward stroke and is wound around the outer periphery of the core shaft. The guide rail is provided on the rear surface of the apparatus main body and is long in the left-right direction, and is movably mounted on the guide rail. The present invention is to include a bridged wire rod supply truck, a reel stand erected on the wire rod supply truck, and a connecting means provided between the wire rod supply truck and the feed stand.

An apparatus having a third configuration includes a power-operated chuck, a detachably mounted rotary core shaft which is detachably attached to the chuck and has a wire wound around its outer periphery, and an apparatus main body which is parallel to the core axis. A guide bar erected in front of the
A feeder provided with a wire holder that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft;
A wire holding member moving unit that reciprocates the wire holding member along the guide bar, wherein the wire is guided by the wire holding member with one end attached to the chuck, and with rotation of the core shaft. The feed base moves in the forward stroke and is wound around the outer periphery of the core shaft. The guide rail is provided on the rear surface of the apparatus main body and is long in the left-right direction, and is movably mounted on the guide rail. A bridged wire supply cart, a reel stand erected on the wire supply cart, and coupling means provided between the wire supply cart and the feeder, the reel stand includes:
A pole fixed to the wire supply cart and a bracket detachably attached to the pole, and the bracket can hold a posture of projecting forward and rearward with respect to the pole, The lower surface of the apparatus main body is left with a space with respect to the ground by the legs at the left and right ends, and the lower surface of the apparatus main body in the space is provided with a freely rotatable guide roll long in the left-right direction.

[0007] The apparatus of the fourth configuration is a power-rotated chuck, a rotating core shaft which is detachably attached to the chuck and has a wire rod wound around the outer periphery thereof, and an apparatus body parallel to the core axis. A guide bar erected in front of the
A feeder provided with a wire holder that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft;
A wire holding member moving unit that reciprocates the wire holding member along the guide bar, wherein the wire is guided by the wire holding member with one end attached to the chuck, and with rotation of the core shaft. The feed base moves in the forward stroke and is wound around the outer periphery of the core shaft. The guide rail is provided on the rear surface of the apparatus main body and is long in the left-right direction, and is movably mounted on the guide rail. A bridged wire supply truck, a reel stand erected on the wire supply truck, and between the wire supply truck and the feed bar, projecting in a direction approaching each other from the wire feed truck and the feed bar. One arm and the other arm, a freely rotating roller attached to the one arm, and a long gap in the front-rear direction with a small gap in the left-right direction across the roller. Sea urchin, is to include a groove provided in the other arm.

The apparatus of the fifth configuration is a power-rotated chuck, a left and right rotating core shaft which is detachably attached to the chuck and has a wire wound around its outer periphery, and a device main body parallel to the core shaft. A guide bar erected in front of the
A feeder provided with a wire holder that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft;
A wire holding member moving unit that reciprocates the wire holding member along the guide bar, wherein the wire is guided by the wire holding member with one end attached to the chuck, and with rotation of the core shaft. The feed base moves in the forward stroke and is wound around the outer periphery of the core shaft. The guide rail is provided on the rear surface of the apparatus main body and is long in the left-right direction, and is movably mounted on the guide rail. A bridged wire rod supply truck, a drum stand erected on the wire rod supply truck, and between the wire rod supply truck and the feed bar, projecting from the wire rod feed truck and the feed bar in a direction approaching each other. One arm and the other arm, a freely rotating roller attached to the one arm, and a long gap in the front-rear direction with a small gap in the left-right direction across the roller. The reel stand includes a pole fixed to the wire supply cart and a bracket detachably mounted on the pole, and the bracket includes the pole provided on the other arm. The front surface and the rear surface of the device main body can be held in such a posture that the lower surface of the device main body leaves a space with respect to the ground by legs at left and right ends, and the lower surface of the device main body in the space has left and right sides. That is, a freely rotatable guide roll long in the direction is provided.

In the apparatus having the sixth configuration, in addition to the second, third, fourth, or fifth configuration, the wire rod holding member moving unit includes a horizontal feed motor and an original provided near the left end and the right end of the apparatus main body. It consists of a moving vehicle and a driven vehicle, and a loop strip stretched between these vehicles.

[0010]

Embodiments of the present invention will be described below based on one embodiment shown in the drawings. 1 to 3, a device according to the present invention is generally a lathe-shaped device body 1.
A power-operated chuck 2, a rotating core shaft 3 which is detachably attached to the chuck and has a wire wound around the outer periphery thereof, and a guide shaft erected on the front surface of the apparatus main body in parallel with the core shaft. A feed bar 5 having a bar 4, a wire holding member 7 slidably mounted on the guide bar and configured to guide the wire to the outer periphery of the core shaft; And a wire rod holding member moving unit 10 that reciprocates along.

The wire A is guided by the wire holding member 7 with one end attached to the chuck 2,
With the rotation of the core shaft 3, the feed base 5 moves in the forward stroke and is wound around the outer periphery of the core shaft 3.

4 and 5, a chuck 2 is attached to a spindle (not shown) driven by an AC servomotor (spindle motor), and a cylindrical rotary core shaft 3 for defining a coil diameter is detachably attached to the chuck. The free end is rotatably supported by the core bearing 8, and the wire A is wound around the outer circumference with the rotation of the core shaft. Chuck claw 2a
4, a fitting space 2b is provided so that the distal end of the wire A can rotate with the core shaft while being held on the outer periphery of the core shaft 3. As shown in FIG.

The wire holding member 7 is provided on a guide stand 6 erected on the feed stand 5 and guides the wire to the outer periphery of the rotary shaft along a horizontal tangential direction.
A pair of upper and lower (two on the upper and two on the lower) determine the winding force by holding the wire and applying tension to the wire if necessary.
) Grooved free-rolling rollers.

4 and 5, a wire holding member moving unit 1 is shown.
Reference numeral 0 denotes a transverse feed motor (AC servo motor) 11, a driving wheel 12 and a driven wheel 13 provided near the left end and the right end of the apparatus main body, and a loop strip 14 including a timing belt stretched between these vehicles. Consists of The feed base 5 is connected to the upper body of the loop body 14 via a sandwiching connection part 5a. Then, the main spindle motor and the transverse feed motor are controlled so as to store the speed so that the feed speed of the wire holding member corresponding to the coil pitch is obtained with respect to the rotation speed of the rotary core shaft 3.

In FIGS. 5 and 6, a guide rail 21 which is long in the left-right direction is provided on the rear surface of the apparatus main body 1, and a wire rod carriage 22 is movably mounted on the guide rail. The wire supply truck comprises a plate-shaped main body 22a, and rollers 22 attached to the main body to sandwich the guide rail 21 vertically.
b. A reel stand 23 erected on the wire supply carriage 22 is fitted with a pole 23a having a circular cross section and is slidably and slidably fitted therewith to protrude in an orthogonal direction.
And a bracket 23b fixed at an arbitrary height. The bracket is capable of holding a posture of projecting forward and rearward with respect to the pole. A wire supply reel 24 is rotatably mounted on the tip of the bracket. The wire A is wound around the wire supply reel 24 in a bundle.

One arm 31 and the other arm 33 projecting in a direction approaching each other from the wire supply carriage 22 and the feed stand 5 between the wire supply carriage 22 and the feed stand 5, and attached to the one arm 31. And a groove 34 provided in the other arm 33 so as to be long in the front-rear direction and have a small gap in the left-right direction with the roller 32 interposed therebetween.

Thus, the feed base 5 (the wire holding member 7)
The connecting portion 30 is configured such that the wire supply carriage 22 moves in conjunction with the movement of the wire rod. When the roller 26 rotates with a slight gap in the groove 34 of the other arm, the wire supply truck smoothly interlocks with the highly accurate movement of the wire holding member 7. As a result, the wire A is introduced into the wire holding member 7 in a constant state (introduction angle or the like), and it becomes possible to manufacture a wire coil with high accuracy.

The lower surface of the apparatus main body 1 has a space left on the ground by legs at the left and right ends, and in this space, a freely rotatable guide roll 40 long in the left and right direction is provided on the lower surface of the apparatus main body.

Next, the operation of the present invention will be described. The wire A fed from the wire supply reel 24 is clamped by the wire holding member 7 and its tip is fitted into the fitting space of the chuck 2 to complete the work setting. The feed stand 5 has an arbitrary leftmost position. Next, if the petal switch of the step is turned on, the main shaft motor rotates forward (clockwise in FIG. 5).
The winding of the wire A is started by rotating the core shaft 3.

Accordingly, the feed stand 5 and the wire holding member 7 move rightward together with the wire feed carriage 22 at a speed corresponding to the predetermined coil pitch. At this time, the state of introduction of the wire A into the wire holding member 7 is constant. Then, when the feed base 5 moves by a distance corresponding to the predetermined spring length, the main shaft motor and the transverse feed motor 11 are stopped. Thereafter, the wire between the core shaft 3 and the wire holding member 7 is cut and the product is removed. The main shaft motor and the traverse motor are reversed and return to the home position, and the feed bar 5 returns to the starting position.

In the case of manufacturing a right-handed coil, the locking means 23c is loosened and the bracket 23b of the reel stand 23 is attached to the pole 2 in the case of a left-handed coil.
An attitude of projecting rearward with respect to 3a (shown by phantom lines in FIGS. 3 and 5). Then, the wire A passes through the space below the apparatus main body 1 and is guided upward by the guide rolls 40 and introduced into the guide wire holding member 7, and the chuck claw 2 is provided below the rotary core shaft 3.
a. The rotation direction of the rotating core shaft 3 is reversed (counterclockwise in FIG. 5). This makes it possible to manufacture right-handed and left-handed coils having the same winding habit (wire introduction path).

As another embodiment of the wire holding member 7, a cylindrical body through which the wire passes is used instead of a roll.

The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

[0024]

According to the first configuration of the present invention, the wire is introduced into the wire holding member in a constant state (such as an introduction angle), and it becomes possible to manufacture a wire coil with high accuracy, and at the same time, it is possible to manufacture the wire coil. No need for floor space.

According to the second configuration, the wire is introduced into the wire holding member in a constant state (introduction angle or the like), so that it is possible to manufacture a wire coil with high accuracy, and at the same time, the floor for the wire supply section is formed. No longer needed.

According to the third configuration, in addition to the effects of the second configuration,
Right-handed and left-handed coils can be manufactured with the same winding habit (wire material introduction path).

According to the fourth configuration, in addition to the effects of the second configuration,
A high-precision feeding mechanism of the wire holding member can smoothly be linked even with a wire feeding cart that does not require much accuracy.

According to the fifth configuration, in addition to the effects of the third configuration,
A high-precision feeding mechanism of the wire holding member can smoothly be linked even with a wire feeding cart that does not require much accuracy.

According to the sixth configuration, in addition to the effects of the second, third, fourth, or fifth configuration, it is simpler and less expensive than conventional ball screws, and can return to the original position faster.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of the present invention.

FIG. 2 is a plan view of one embodiment of the present invention.

FIG. 3 is a right side view of one embodiment of the present invention.

FIG. 4 is an enlarged view of a main part of FIG. 1;

FIG. 5 is an enlarged view of a main part of FIG. 3;

FIG. 6 is an enlarged view of a main part of FIG. 2;

[Explanation of symbols]

 Reference Signs List A Wire 1 Device main body 2 Chuck 2a Chuck claw 3 Rotating core shaft 4 Guide bar 5 Feed bar 5a Nipping connector 6 Guide stand 7 Wire holding member 8 Core bearing 10 Wire holding member moving unit 11 Lateral feed motor 12 Motor vehicle 13 Follower vehicle 14 Timing Belt 21 Guide Rail 22 Wire Supply Cart 22a Main Body 22b Roller 23 Reel Stand 23a Pole 23b Bracket 23c Locking Means 24 Wire Supply Reel 30 Connection Part 31 One Arm 32 Roller 33 Other Arm 34 Groove 40 Guide Roll

Claims (6)

[Claims] 1. A power-operated chuck, a rotating core shaft removably attached to the chuck and having a wire wound around the outer periphery thereof, and a rotating shaft extending in the left-right direction. A guide bar, a feeder provided with a wire holding member that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft, and the feed bar along the guide bar. A wire rod holding member moving part for reciprocating movement, a guide rail long in the left-right direction provided on the rear surface of the apparatus main body, a wire rod supply truck movably mounted on the guide rail, and standing on the wire rod supply carriage Using the reel stand, a reel on which a wire is wound in a bundle is set on the reel stand, and the paying out end of the wire is fitted into the fitting space of the chuck through the wire holding member, and the core shaft is fixed. A method for manufacturing a wire coil, comprising: rotating the wire feeder along with the feeder at a speed corresponding to a coil pitch to be formed with respect to the rotation speed, and winding the wire around the outer periphery of the core shaft. 2. A power-operated chuck, a rotating core shaft removably attached to the chuck and having a wire wound around the outer periphery thereof, and a rotating shaft extending in the left-right direction. The rotating shaft is mounted on a front surface of the apparatus body in parallel with the core shaft. A guide bar, a feeder provided with a wire holding member that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft, and the feed bar along the guide bar. A wire rod holding member moving part to reciprocate, the wire rod is guided by the wire rod holding member with one end attached to the chuck, with the rotation of the core shaft, the feed table moves in the forward stroke, A longitudinally extending guide rail provided on a rear surface of the apparatus main body, a wire supply truck movably mounted on the guide rail, and a wire supply Table Apparatus for manufacturing the wire coil, characterized in that it comprises a connecting means provided between the reel stand is erected, with the feed table and the wire supply dolly. 3. A power-operated chuck, a rotating core shaft removably mounted on the chuck and having a wire wound around the outer periphery thereof, and a rotating shaft extending in the left-right direction, being mounted on a front surface of the apparatus body in parallel with the core shaft. A guide bar, a feeder provided with a wire holding member that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft, and the feed bar along the guide bar. A wire rod holding member moving part to reciprocate, the wire rod is guided by the wire rod holding member with one end attached to the chuck, with the rotation of the core shaft, the feed table moves in the forward stroke, A longitudinally extending guide rail provided on a rear surface of the apparatus main body, a wire supply truck movably mounted on the guide rail, and a wire supply Table And a connecting means provided between the wire supply truck and the feed bar. The reel stand comprises: a pole fixed to the wire supply truck; And the bracket is capable of holding a posture of projecting forward and rearward with respect to the pole, and a lower surface of the apparatus main body is separated from the ground by legs at left and right ends. Is left on the lower surface of the device body in the space,
An apparatus for manufacturing a wire coil, wherein a guide roll that is freely rotatable in a left-right direction is provided. 4. A chuck which is powered and rotated, a rotating core shaft which is detachably attached to the chuck and has a wire material wound around the outer periphery thereof, and a rotating shaft which extends in the left-right direction and is mounted on a front surface of the apparatus body in parallel with the core shaft. A guide bar, a feeder provided with a wire holding member that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft, and the feed bar along the guide bar. A wire rod holding member moving part to reciprocate, the wire rod is guided by the wire rod holding member with one end attached to the chuck, with the rotation of the core shaft, the feed table moves in the forward stroke, A longitudinally extending guide rail provided on a rear surface of the apparatus main body, a wire supply truck movably mounted on the guide rail, and a wire supply Table To a reel stand is erected, in between the feed table and the wire feed carriage,
One arm and the other arm projecting in a direction approaching each other from the wire supply cart and the feed stand, a freely rotating roller attached to the one arm, a longitudinally extending roller sandwiching the roller, a slight laterally extending And a groove provided in the other arm so as to have an appropriate gap. 5. A chuck which is powered and rotated, a rotating core shaft which is detachably attached to the chuck and has a wire wound around its outer periphery, and which is long in the left-right direction, and is installed on the front surface of the apparatus body in parallel with the core shaft. A guide bar, a feeder provided with a wire holding member that is slidably mounted on the guide bar and guides the wire to the outer periphery of the core shaft, and the feed bar along the guide bar. A wire rod holding member moving part to reciprocate, the wire rod is guided by the wire rod holding member with one end attached to the chuck, with the rotation of the core shaft, the feed table moves in the forward stroke, A longitudinally extending guide rail provided on a rear surface of the apparatus main body, a wire supply truck movably mounted on the guide rail, and a wire supply Table To a drum stand is erected, in between the feed table and the wire feed carriage,
One arm and the other arm projecting in a direction approaching each other from the wire supply cart and the feed stand, a freely rotating roller attached to the one arm, a longitudinally extending roller sandwiching the roller, a slight laterally extending A groove provided in the other arm so as to have an appropriate gap, the reel stand includes a pole fixed to the wire supply cart, and a bracket detachably mounted on the pole, and The bracket is capable of holding a posture of projecting forward and rearward with respect to the pole, and a lower surface of the apparatus main body is left with space on the ground by legs at left and right ends, and the apparatus main body in the space is left. On the bottom,
An apparatus for manufacturing a wire coil, wherein a guide roll that is freely rotatable in a left-right direction is provided. 6. The wire rod holding member moving section includes a lateral feed motor, a driving vehicle and a driven vehicle provided near the left end and the right end of the apparatus main body, and a loop strip stretched between these vehicles. The wire coil manufacturing apparatus according to claim 2, 3, 4, or 5.