JP2960358B2 - Wire clamp device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a wire clamp device used for a winding machine or the like, and more particularly to an improvement in a wire scrap discharging mechanism.

[0002]

2. Description of the Related Art Conventionally, in a winding device, as a gripping mechanism for gripping a distal end side of a wire wound on a winding frame such as a coil bobbin, for example, Japanese Patent Application Nos. As proposed in Japanese Patent Application Laid-Open No. 7-28063, a clamp device for sandwiching and clamping a wire, a rod-like member (so-called discard pin) around which the wire is wound, and the like are used.

[0003] In this case, the wire is cut between the reel and the gripping mechanism so that only the necessary wire remains on the reeling side. As a result, the wire remaining on the gripping mechanism becomes wire rod waste. Need to be discharged as. For this reason, in the conventional gripping mechanism, the air is blown out or knocked down by a hitting rod,
Wire waste was being discharged.

[0004]

However, in such a discharging method, the wire is not always discharged reliably and quickly to the place where the wire is to be discharged, and the efficiency of the winding operation can be sufficiently improved. I can't say that.

An object of the present invention is to provide a wire rod clamping device capable of reliably and quickly discharging wire waste while paying attention to such problems.

[0006]

According to a first aspect of the present invention, there is provided a winding device, wherein a wire wound on a winding frame is clamped by a clamp means to lock the wire to a locking portion of the winding frame. In a wire rod clamping device that assists and separates and discharges the wire material of the sandwiched portion from the winding frame side after the wire material is locked, an upper clamp means fixedly provided on the clamp device body side, and a vertically moving lower part of the upper clamp means A lower clamp means disposed so as to be able to move, an elevating means for elevating and lowering the lower clamp means, and inclined surfaces formed on both sides of these clamp means, and raising the lower clamp means in the direction of the upper clamp means. Then, the wire rod is clamped, and at the time of discharging the wire rod, the lower clamp means is lowered to slide down the wire rod of the clamped portion cut off from the reel side along the inclined surface.

According to a second aspect of the present invention, there is provided an elastic member disposed behind a position at which the wire is clamped by the clamp means, and a bending means for bending the elastic member forward. The elastic member that is bent in a direction extrudes a wire rod that slides down the inclined surface from behind.

[0008] The third invention is provided with air pressure generating means for applying air pressure from behind to the wire rod that slides down the inclined surface when the wire rod of the holding portion is discharged.

In a fourth aspect, the air pressure generating means is a bending means for the elastic member.

According to a fifth aspect of the present invention, the elevating means for elevating and lowering the lower clamp means is a cylinder having a lower clamp means fixedly mounted at a tip of a rod, and the rod of the cylinder cuts off the air pressure from the air pressure generating means. At the same time, by forming an air pressure passage from the air pressure generating means at a predetermined position of the rod, when the lower clamp means is lowered to discharge the wire, the rod is formed in the air pressure ejection path from the air pressure generating means. The air pressure passages communicate with each other, and the air pressure acts on the wire or the elastic member.

[0011]

According to the first aspect of the present invention, the lower clamp means is raised in the direction of the upper clamp means, and the wire is clamped between the upper clamp means and the lower clamp means, so that the locking portion of the wire frame is held. However, when the wire is discharged from the clamp device, the lower clamp is lowered so that the wire of the clamping portion separated from the reel side slides down while guiding along the inclined surface. The discharge of the wire is performed reliably and quickly, and the discharged wire waste can easily accumulate at a predetermined location in front of the inclined surface.

In the second aspect, the elastic member bent forward by the bending means assists the discharge of the wire along the inclined surface by pushing the wire from behind, so that the discharge of the wire can be performed reliably and quickly. Will be

In the third aspect, the discharge of the wire along the inclined surface is assisted by the air pressure from the air pressure generating means, so that the wire can be discharged reliably and quickly.

In the fourth aspect, the air pressure generating means also serves as a bending means for the elastic member, and the elastic member urged by the air pressure from the air pressure generating means pushes out the wire, so that a special structure is provided as the bending means for the elastic member. It is unnecessary, and the reliability and speed of discharging the wire can be improved.

In the fifth aspect of the present invention, the pneumatic ejection passage from the pneumatic pressure generating means is selectively communicated with the pneumatic passage formed in the rod by the expansion and contraction position of the rod of the cylinder. In other cases, the air pressure from the air pressure generating means is cut off and the operation by the clamp device is not hindered, but at the time of discharging the wire, the air pressure can be easily applied to the wire side, thereby increasing the reliability and speed of discharging the wire. At the same time, the configuration of the clamp device can be simplified.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the winding device includes a spindle 31 rotatable about a rotation axis and movable in a three-dimensional direction, and a nozzle at the tip of a flyer 32 fixed to the spindle 31. A wire 34 is fed out from 33.

On the other hand, an armature 37 as a winding frame is supported by an index device 36 provided on the winding device main body 35. A wire 34 fed from the nozzle 33 is wound around the armature 37, and prior to this winding, the wire 34 is entangled with a locking portion (not shown) of the armature 37. When the spindle 31 is rotated after this locking, the nozzle 33 at the tip of the flyer 32 turns around the armature 37, and the wire 34 fed from the nozzle 33 is wound around the armature 37.

In order to perform the binding to the locking portion, the winding device is provided with a clamp device 1 for clamping the distal end of the wire 34. That is, by clamping the distal end of the wire 34 with the clamp device 1 and moving the spindle 31, the wire 34 between the nozzle 33 and the clamp device 1 is entangled with the locking portion of the amateur 37. Can be.

The clamp device 1 is movable in the horizontal direction. After the binding of the wire 34 to the locking portion is completed, the clamp device 1 is moved in the horizontal direction to move the wire 34 in the horizontal direction.
The wire 34 can be cut between the locking portion and the clamp device 1 by applying tension to the wire. Thereby, the extra wire 34 on the clamp device 1 side is cut off from the armature 37, and wire scraps remain on the clamp device 1 side.

As shown in FIG. 2, the clamp device 1 includes a substantially L-shaped frame 2, and has connection holes 3A and 3B provided in a side 2A extending in the horizontal direction. It is connected to the shafts 38A and 38B on the 35 side.

On the other hand, an upper clamp plate 4 is fixedly provided at the lower end of a side 2B which vertically hangs downward from a side 2A of the frame 2. Below the upper clamp plate 4, a lower clamp plate 5 is provided so as to be able to move up and down so that the wire 34 can be gripped between the lower clamp plate 5 and the upper clamp plate 4.

The lower clamp plate 5 extends downward from the cylinder 6 fixed to the side 2A along the side 2B.
The tip of a rod 6A penetrating the upper clamp plate 4 is fixedly provided in the through hole 4A.

A ring member 7 is fixed to an intermediate portion of the rod 6A, and a spring 8 interposed between the ring member 7 and the upper clamp plate 4 usually lowers the lower end of the rod 6A. Clamp plate 5 is upper clamp plate 4
Direction (the direction in which the wire 34 is clamped) so that the clamped state is maintained. On the other hand, when the cylinder 6 operates and the rod 6A extends downward, the lower clamp plate 5 is separated from the upper clamp plate 4, and the clamp of the wire 34 is released.

A pair of slide plates 9 are fixed to the side 2A of the frame 2 so as to be disposed on both sides of the lower clamp plate 5 at the time of clamping. The upper end surface of the slide plate 9 forms an inclined surface 9A that is inclined forward from the frame 2 side. When the clamp of the wire 34 is released, the wire debris that has lost support of the lower clamp plate 5 is removed from the inclined surface 9A. To guide the wire debris to the front discharge location.

Next, the operation will be described.

When winding the armature 37 supported by the index device 36, first, the spindle 31
, The tip of the wire fed from the nozzle 33 is brought to the clamping device 1 side, and the cylinder 6
The wire 34 is inserted between the upper clamp plate 4 and the lower clamp plate 5 opened by the extension of the wire, the cylinder 6 is contracted, and the wire 34 is clamped between the upper clamp plate 4 and the lower clamp plate 5. .

After the distal end of the wire 34 is gripped by the clamp device 1 as described above, the spindle 31 is moved again to lock the portion of the wire 34 between the clamp device 1 and the nozzle 33 with the armature 37. Take it around the club. Further, by moving the spindle 31, the wire 34
And wrap it around the locking part.

When the tying of the armature 37 to the locking portion is completed, the clamp device 1 is moved in the horizontal direction (in a direction away from the armature 37), whereby tension is applied to the wire 34, and the wire 34 Is cut between the clamp device 1 and the locking portion.

In this manner, wire scraps remain on the clamp device 1 side, but the lower clamp plate 5 is moved downward by extending the cylinder 6 here. As a result,
The wire rod waste that has lost support from the lower clamp plate 5 slides down along the inclination of the inclined surfaces 9A of the pair of slide plates 9.

In this case, if a place (discharge box) for discharging wire rod waste is arranged in front of the inclined surface 9A, the inclined surface 9A
The wire rod sliding down is collected at a predetermined discharge place, and the efficiency of the processing of wire scrap is increased.

FIGS. 3 to 5 show another embodiment of the present invention.

In this embodiment, a clamp device 11 is used in place of the clamp device 1 shown in FIGS.
Hereinafter, the clamp device 11 will be described focusing on differences from the clamp device 1.

As shown in FIG. 4, the clamping device 11
An upper clamp plate 14 fixed to the lower end side of the side 2B of the frame 2, a lower clamp plate 15 fixed to the tip of a rod 6A extending downward through the upper clamp plate 14 in a through hole 14A; It has.

The upper clamp 14 and the lower clamp plate 1
5 have notches 14A and 15
B are formed, and the notches 14A, 15B
A part of the spring member 16 hanging from the side 2 </ b> A of the frame 2 is accommodated so as to be located behind the wire gripped by the upper clamp plate 14 and the lower clamp plate 15. The spring member 16 is an elongated pin-shaped member having appropriate elasticity, and bends forward when receiving a force from the rear from behind, as will be described later, and forms a slope 9A of the pair of slide plates 9. It has a function to push out a wire rod falling from behind.

An air supply device (pneumatic pressure generating means) 20 is provided beside the upper and lower clamp plates 14 and 15. As shown in FIG. 5, the air (air pressure) supplied from the air supply device 20 is ejected from an air ejection port 22 to an air passage 21 formed on the side 2B.

The air passage 21 is connected to the upper clamp plate 14
Is formed so as to communicate with the air passage 23 reaching the cutout portion 14B, but there is usually a rod 6A between these air passages 21 and 23, which blocks the flow of air. . On the other hand, an annular groove (through hole) 24 is formed on the outer peripheral surface at a predetermined position of the rod 6A,
When the rod 6A extends downward until the annular groove 24 reaches the height of the air passages 21 and 23, the air passages 21 and 23 communicate with each other, and the air ejected from the air supply device 20 reaches the air passage 23. It has become.

As described above, the notch 1
When the air is supplied to the 4B side, the spring member 16 urged by the air bends forward as shown by a dashed line in the figure to move the wire sliding down the inclined path 9A of the slide plate 9 forward. And extrude. Thus, in addition to the inclined surface 9A,
Wire debris urged by the spring member 16 and the ejected air is reliably and quickly discharged.

Further, an air passage 25 extends downward from the air passage 23 and reaches the lower surface of the upper clamp plate 14. Thus, the air jetted from the air passage 25 urges the wire scraps sliding down the slope 9A, and the reliability of the discharge of the wire scraps is enhanced.

Next, the operation of this embodiment will be described with reference to FIG.
The description will focus on the differences from the embodiment of FIG.

Also in this embodiment, the wire 34 is sandwiched between the upper clamp plate 14 and the lower clamp plate 15 of the clamp device 11, and the wire 34 is entangled with the locking portion of the amateur 37, and Make a cut. When the wire 34 is sandwiched between the upper clamp plate 14 and the lower clamp plate 15, the lowering of the lower clamp plate 15 (extension of the rod 6 </ b> A of the cylinder 6) causes the air passages 21, 23 to be closed by the annular grooves 24. It does not communicate with Accordingly, no air is blown out from the air passage 23, and the operation of inserting the wire 34 between the upper clamp plate 14 and the lower clamp plate 15 is not hindered.

When discharging wire rod waste from the clamp device 11, the rod 6A of the cylinder 6 is lowered to a position where the annular groove 24 communicates with the air passages 21 and 23. As a result, the wire debris loses the support of the lower clamp plate 15 and slides down the inclined surface 9A of the slide plate 9. At this time, the spring member 16 urged by the air bends, and the wire rod wastes from behind. Since the waste is extruded, the wire waste is reliably discharged.

Further, in this case, the air is also blown downward from the air passage 25 and the wire debris is discharged from the air passages 23 and 2.
5 also urges sliding down along the slope 9A.

As described above, according to the present invention, the discharge of the wire rod waste from the clamp device 11 is performed by the inclined surface 9A and the spring member 1.
6 and the injection of air, the wire debris can be easily accumulated at the discharge place in front of the inclined surface 9A, so that the winding work can be made more efficient.

The air supply device 20 shown in the embodiment of FIGS. 3 to 5 does not necessarily need to be used together with the spring member 16, and a clamp device provided with the air supply device 20 alone may be used. it can.

In the embodiment shown in FIGS. 1 to 5, the clamping devices 1 and 11 of the present invention
Although an example in which the present invention is applied to a flyer type winding device for winding a wire is shown, the application of the clamp devices 1 and 11 of the present invention is not limited to such a winding device, and a winding device for winding a wire 34. Can be used generally. For example, as shown in FIG. 6, instead of the flyer method, a wire 34 fed from a nozzle 41 that can move in a three-dimensional direction is
And a wire rod in a winding device of a type in which the wire rod 34 is wound by rotating the coil bobbin 42 together with the rotation of a spindle 44 that supports the coil bobbin 42 at the distal end thereof. It is also possible to apply it to the connection of the terminal 34 to the terminal 43.

[0047]

According to the first aspect of the present invention, the lower clamp means is raised in the direction of the upper clamp means, and the wire is clamped between the upper clamp means and the lower clamp means. When the wire is discharged from the clamp device, the lower clamp means is lowered to guide the wire of the clamping portion separated from the reel along the inclined surface. Since the wire is slid down, the wire is discharged reliably and quickly, and the discharged wire waste can easily accumulate at a predetermined location in front of the inclined surface.

According to the second aspect, the elastic member bent forward by the bending means assists the discharge of the wire along the inclined surface by pushing the wire from the rear, so that the discharge of the wire is surely and quickly. Done in

According to the third aspect, the discharge of the wire along the inclined surface is assisted by the air pressure from the air pressure generating means, so that the wire can be discharged reliably and promptly.

According to the fourth aspect, the air pressure generating means also serves as a bending means for the elastic member, and the elastic member urged by the air pressure from the air pressure generating means pushes out the wire, so that a special means for bending the elastic member is used. No configuration is required, and
It is possible to increase the reliability and speed of discharging the wire.

According to the fifth aspect of the present invention, the passage for ejecting air pressure from the air pressure generating means is selectively communicated with the passage for air pressure formed in the rod by the expansion and contraction position of the rod of the cylinder. Except during discharge, the air pressure from the air pressure generating means is shut off and the operation by the clamp device is not hindered.However, at the time of discharging the wire, the air pressure can be easily applied to the wire side, and the reliability and promptness of discharging the wire can be improved. As a result, the configuration of the clamp device can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a perspective view showing another embodiment.

FIG. 4 is a perspective view of the same.

FIG. 5 is a sectional view of the same.

FIG. 6 is a perspective view showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp device 2 Frame 4 Upper clamp plate 5 Lower clamp plate 6 Cylinder 6A Rod 9 Slide plate 9A Inclined surface 11 Clamp device 14 Upper clamp plate 15 Lower clamp plate 16 Spring member 20 Air supply device 21 Air passage 22 Air outlet 23 air passage 24 annular groove 25 air passage

Claims (5)

(57) [Claims] A wire provided on a winding device is supported by a clamp means to hold a wire wound on a winding frame by a clamping means to assist in locking the wire to a locking portion of the winding frame, and after the wire is locked. In a wire clamp device for separating and discharging a wire material of a clamping portion from a winding frame side, an upper clamp means fixedly provided on a clamp device body side, and a lower clamp means arranged below the upper clamp means so as to be able to move up and down. A lifting means for raising and lowering the lower clamp means, and inclined surfaces formed on both sides of the clamp means; raising the lower clamp means in the direction of the upper clamp means to clamp the wire, A wire clamp device characterized by lowering the lower clamp means at the time of discharge of the wire to slide down the wire of the holding portion cut off from the reel side along the inclined surface. 2. An apparatus according to claim 1, further comprising: an elastic member disposed behind a position at which the wire is clamped by the clamp means; and a bending means for bending the elastic member forward. 2. The wire rod clamping device according to claim 1, wherein the elastic member pushes out the wire rod sliding down the inclined surface from the rear. 3. The wire rod clamping device according to claim 1, further comprising air pressure generating means for applying air pressure from behind to the wire rod that slides down the inclined surface when discharging the wire rod of the holding portion. 4. The wire rod clamping device according to claim 3, wherein said air pressure generating means is a bending means of said elastic member. 5. The lifting means for raising and lowering the lower clamp means is a cylinder having a lower clamp means fixedly mounted at the tip of a rod. By forming a passage for the air pressure from the air pressure generating means at a predetermined position, when the lower clamp means is lowered to discharge the wire, the air pressure passage on the rod side is formed in the air pressure ejection path from the air pressure generating means. The wire rod clamping device according to claim 3 or 4, wherein air pressure acts on the wire or the elastic member in communication.