JPS621177Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding machine capable of winding wire rods for electromagnets, transformers, solenoid coils, etc. in alignment in the axial direction of a bobbin.

As shown in FIG. 1, a conventional winding machine uses a coil bobbin 32 around which a wire 31 having a predetermined wire diameter is wound.
The winding method is such that the wire supply head 33 is forcibly moved in the direction of arrow B in synchronization with the rotational speed in the direction of arrow A and the winding pitch.

However, with this method, it is relatively difficult to adjust the synchronization, and even a slight adjustment error may cause the wire 31 to
As the layers are stacked, the pitch error increases, resulting in winding misalignment. Also, wire rod 3
Since there is a difference in wire diameter even in one lot, a device that can also adjust the deviation based on this difference has the disadvantage that the device itself is expensive.

In addition, when winding a relatively thick wire onto a long coil bobbin, a large-sized device is required, so as shown in FIG. A wire rod 31 is pulled out by a worker's hand 35, and the wire rod 31 is wound around a coil bobbin 32 that rotates in the direction of arrow A by a drive mechanism (not shown) installed on a base 36. For this reason, the manufacturing cost increases due to an increase in the winding time, and in addition, the product yield is reduced due to differences in skill and fatigue among workers.

Furthermore, in general winding machines, a tension device is used to apply a predetermined tension to the wire rod, but in this case, as shown in FIG. When winding a wire, a deviation in angle θ will occur, and in order to compensate for this deviation, the distance between the tension device 41 and the coil bobbin 32 must be set to a considerable distance such that θ≒0. For example, the length L of the coil bobbin 32 =
200 mm, and the wire diameter d of the wire 31 is 0.3 mm, the distance between the tension device 41 and the coil bobbin 32 is 10
Correction cannot be made unless the value becomes m. Therefore, not only a large working space is required, but also the wire 31 is easily affected by vibrations etc. in the middle, which has the drawback of increasing the incidence of defective products.

An object of the present invention is to provide a winding machine that can wind wires in alignment.

The present invention provides a winding machine that winds a wire supplied from a wire supply device disposed perpendicular to the axis of the bobbin onto a winding bobbin rotated by a rotational drive source. A plurality of guide members are provided parallel to the bobbin and extend along the entire length of the bobbin, and these guide members pass through the central axis position and are rotatably and axially movably supported. Each of the driven members formed with a prevention shape is provided, the wire drawn out from the wire supply device is wound around each driven member, and then wound around a bobbin, and each driven member is rotated by the wire wound around the bobbin. The structure is such that the wire rod is moved in the axial direction only by the component of the tension in the guide member, and therefore the driven member can move the wire winding position on the bobbin without using any other active drive mechanism. The purpose is to achieve the above object by applying tension to the wire rod in the direction opposite to the direction of movement of the winding position to enable aligned winding with no gaps.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 6.

In Figure 4, which shows the overall configuration, base 1
A tailstock 2 is disposed on one side of the upper surface of the , and a rotation center 3 for holding the bobbin is rotatably supported on the tailstock 2, and the rotation center 3 is moved forward and backward in the axial direction by a tailstock handle 4. The locking lever 5 allows the locking lever 5 to lock the locking lever 5 in place.

A bearing pedestal 6 is disposed at a position facing the tailstock 2. A rotating shaft 7 is rotatably supported on the bearing pedestal 6, and a surface of one end of the rotating shaft 7 facing the rotation center 3 is disposed at a position facing the tailstock 2. A chuck 8 is attached to the chuck 8, and a pulley 9 is fixed to the other end, and the pulley 9 is rotationally driven by a drive motor 11 via a round belt 10. A control device 12 is connected to the drive motor 11, and the control device 12 controls the rotational speed, driving, stopping, etc. of the drive motor 11. Furthermore, a winding bobbin 13 is supported between the rotation center 3 and the chuck 8.

On one side of the base 1, a wire rod holder 15 on which the wire spool 14 is installed is provided at a position appropriately spaced from the base 1.
Above is a wire rod 16 pulled out from the wire rod spool 14.
A tension device 17 is provided to apply a predetermined tension to the. This tension device 17 is a device of a normal structure, and for example, supports rotatably around a central axis a rotary pulley around which a wire is wound one or more predetermined times, and a coil spring or the like is attached to the rotary pulley at the central axis. The wire spool 14, the base 15, and the tension device 17 constitute a wire supply device.

On the base 1, one side of the tailstock 2 and the bearing rest 6, that is, the tension device 17
A pair of upright plate-shaped bases 18 are fixed to one side, and a pair of bases 19 are fixed to the other side. Between the base 18 on one side, there are two slide shafts 20A, 2 as guide members, that is, first and second slide shafts 20A, 2.
0B is stretched parallel to the axis of the winding bobbin 13, and one or third slide shaft 20C is provided as a guide member between the bases 19 on the other side.
are similarly stretched parallel to the axis of the winding bobbin 13. At this time, the second slide shaft 20
B is provided at a position slightly above the bobbin 13,
Further, the first and third slide shafts 20A and 20C are provided parallel to each other at a position below the bobbin 13 (see FIG. 5).

Each of the slide shafts 20A, 20B, 20C has a grandchild 1, a second, and a third driven member 21A, 2, respectively.
1B, 21C are slide shafts 20A, 20B, 20
C, is mounted so as to be rotatable in the circumferential direction and slidable in the axial direction. These first, second, and third driven members 21A, 21B, and 21C are engaged with the slide shafts 20A, 20B, and 20C in the central axial direction, and are slightly larger in outer diameter than the slide shafts 20A, 20B, and 20C. It has a through hole 22 with an inner diameter (see FIG. 6), and a small diameter portion 23 around which the wire 16 is wound at the center in the axial direction, and is formed into a pincushion shape as a whole.

The wire rod 16 pulled out from the wire rod spool 14 is
It is wound around the tension device 17 to apply a predetermined tension, and as shown in FIG.
A, 21C are wound around in this order and fixed to the starting end of the bobbin 13, and these driven members 21A,
21B and 21C are configured to be moved along the slide shafts 20A, 20B, and 20C by a component of the tension of the wire rod 16 in the direction of the slide shafts 20A, 20B, and 20C, respectively.

Next, the operation of this embodiment will be explained.

When the bobbin 13 is rotated by the drive motor 11, winding of the wire 16 onto the bobbin 13 is started, and at the same time, the third driven member 21C rotates the bobbin 13 due to frictional resistance with the third slide shaft 20C. The winding position of the wire rod 16 moves with a slight delay while unwinding the wire rod 16, and the wire rod 16
A force in the direction opposite to the advancing direction of the winding position on the bobbin 13 is applied to the bobbin 13. As a result, the wire rod 16 fed out from the third driven member 21C slips over the already wound wire rod 16 and is wound in an aligned state without any gaps in the winding direction. At this time, the first driven member 21A is the third driven member 21C.
The second driven member 21B rotates and slides on the slide shaft 20A following this, and the second driven member 21B also slides following this first driven member 21A.

In this way, each driven member 21A, 21B, 2
Winding on the bobbin 13 is performed while 1C moves in a predetermined direction, and when it reaches one end of the bobbin 13,
The winding direction is reversed by the flanges at both ends of the bobbin 13, and the winding of the next layer is started, and each driven member 21A, 21B, 21C is reversed and moves in the opposite direction. A predetermined winding work is performed by repeating the operation.

According to this embodiment, the following effects can be obtained.

That is, since the third driven member 21C follows the winding speed with a delay due to friction, the wire 16 is moved to the most appropriate position on the bobbin 13 by utilizing the axial delay of the third driven member 21C. Since the wire is supplied to the wire and wound after correcting angular deviation, etc., there is no delay or advance due to pitch error, and stable aligned winding can be achieved.

Further, between the tension device 17 and the bobbin 13, first, second, and third driven members 21A, 21B,
By interposing the third driven member 21C, vibration of the wire 16 between the bobbin 13 and each of the driven members 21A, 21B, and 21C can be reliably prevented, and the third driven member 21C can be wound with respect to the winding position of the bobbin 13. By following the wire at a close position on the rear side in the direction of movement, it is possible to always feed the wire at an appropriate angle or position.

Moreover, even if the distance between the tension device 17 and the bobbin 13 is considerably shortened, the winding state on the bobbin 13 can always be kept constant by the first, second, and third driven members 21A, 21B, and 21C. Since the wire 16 can be folded back and forth over a considerable length, the angular misalignment that occurs in the conventional method is completely eliminated during winding, and a more compact winding machine can be provided. There is.

In addition, in implementation, the number of the slide shafts and driven members is not limited to the above numbers, but may be one or more, and can be increased or decreased depending on the tension value, the thickness of the wire, etc. That is, when winding a wire with a high tension value and a relatively large diameter, it is desirable to increase the number of driven members to prevent the wire from buckling or curling.
Conversely, when winding a wire with a low tension value and a small diameter, it is desirable to reduce the number of driven members.

As described above, the present invention has the effect of providing a winding machine that can perform stable aligned winding.

[Brief explanation of the drawing]

1 to 3 are explanatory diagrams showing different conventional winding situations, FIG. 4 is a plan view showing the usage state of one embodiment of the present invention, and FIG. 5 is the same as that shown in FIG.
FIG. 6 is an enlarged perspective view showing the main part of FIG. 4. 1... Base, 2... Tailstock, 6... Bearing stand, 13... Winding bobbin, 14, 15, 17...
...Wire rod spool, base and tension device, 16...Wire rod, 20A, 20
B, 20C...Slide shaft as a guide member, 2
1A, 21B, 21C...driven members.

Claims (1)

[Claims for Utility Model Registration] (1) A winding machine that winds a wire supplied from a wire supply device disposed perpendicular to the axis of the bobbin onto a winding bobbin rotated by a rotational drive source, comprising: A plurality of guide members are provided parallel to the rotation axis of the winding bobbin and extend along the entire length of the bobbin, and the guide members pass through the central axis position and are supported rotatably and movably in the axial direction. Each driven member is provided with a shape to prevent the wire from falling off and engages with the wire, and the wire drawn out from the wire supply device is wound around each driven member and then wound around a bobbin, and each driven member is wound around the bobbin. 1. A winding machine characterized in that the winding machine is configured to be rotated by a wire rod and moved in the axial direction only by the component of the tension of the wire rod in the direction of the guide member. (2) Utility Model Registration In Claim 1, the driven member is rotatably and axially movably supported by a round bar-shaped guide member, and has a collar-shaped wire rod on both sides of the outer peripheral surface to prevent it from falling off. A wire winding machine characterized by being formed into a spool shape. (3) In claim 1 or 2 of the utility model registration claim, the guide member includes a first slide shaft provided at a distance from the bobbin on the wire rod supplying device side below the bobbin; A second slide shaft is provided above the bobbin between the slide shaft and the bobbin, and a third slide shaft is provided on the opposite side of the second slide shaft across the bobbin, and serves as a driven member. , these first, second, and third slide shafts are provided with first, second, and third driven members, respectively, and the wire drawn out from the wire supply device is connected to the second driven member, the first driven member, and the first driven member. A winding machine characterized in that a member and a third driven member are wound around the bobbin in this order.