JPH0258008B2 - - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a wire winding machine having a wire winding bobbin rotatably supported around a central axis on a winding machine body, and in particular, to Concerning improvement of the starting end fixing part.

<Prior Art> In a conventional wire winding machine, the starting end of the wire is fixed in a manner as shown in FIG. 10 or 11.
That is, in FIG. 10, the starting end 1a of the wire 1 is guided into the center hole 3 of the cylindrical winding part 2a of the bobbin 2, and the wire 1 is connected to the center shaft 4 intervening in the center hole 3 and the hole wall of the center hole 3. It is configured to sandwich the starting end 1a of.

In FIG. 11, a chuck plate 5 is arranged parallel to the flange 2b of the bobbin 2, and the starting end 1a of the wire 1 is sandwiched between the chuck plate 5 and the flange 2b. In both cases, the starting end 1 of the wire 1
In order to prevent the a side from unraveling, winding around the bobbin 2 was started from the side opposite to the fixed part of the starting end 1a.

<Problems to be Solved by the Invention> However, in the configuration shown in FIG. 10, the fixing part is in an unstable state because it is sandwiched between the central shaft 4 and the hole wall of the central hole 3, and it is particularly difficult to fix wire rods. was unsuitable because there was a high probability that the starting end 1a would unravel.

In addition, in the configuration shown in FIG. 11, the starting end 1a of the wire 1
is not fully gripped, and there is a risk that it may fly out from the bobbin 2 due to rotation of the bobbin 2.

Since both are fixed beyond the flange 2b, (a) the wire may break due to friction with the outer edge of the flange 2b or wear out, (b) the starting end 1a protrudes for a long time on the outer periphery of the fully wound bobbin, (c) the bobbin If winding is performed from the side opposite to the starting end fixed side, the starting end 1a will be wound diagonally around the bobbin due to the tension with the fixed part of the starting end 1a, making it impossible to tightly wind the subsequent winding wire, and also preventing the subsequent winding from winding. There were problems such as the starting end 1a being disconnected due to the attached wire.

In view of the above, an object of the present invention is to provide a wire winding machine and a wire winding method thereof, which can grip the starting end of a wire reliably and safely and prevent the wire from breaking during recoil.

<Means and operations for solving the problem> The means for solving the problem according to the present invention is as shown in FIG. bobbin 15 for
and a drive device 16 that rotationally drives the bobbin 15.
, a chuck device 18 for gripping the starting end 14a of the wire 14, and a chuck device 18 for holding the starting end 14a of the wire 14;
a rotating device 19 that revolves around the wire rod 1;
4 to the bobbin 15, and a traverse device 21 that reciprocates the guide device 20 in the axial direction of the central shafts 12 and 13.

Then, at the beginning of wire winding, the wire 14 is gripped by the chuck device 18, the chuck device 18 is made to revolve around the bobbin 15, and at the same time, the chuck device 1
8 intersects with the entry line of the wire rod 14 from the guide device 20, the guide device 20 is aligned with the central axis 1 of the bobbin 15.
A chuck device 18 that reciprocates in the axial direction of 2 and 13.
The wire rod 14 is wound around the bobbin 15 several times while being released from the bobbin 15, and the starting end of the wire rod 14 is held by the wire rod 14 wound several times, and then the chuck device 18
is opened, the wire rod 14 is pulled out from the chuck device 18, the bobbin 15 is rotated, and the wire rod 14 is inserted into the bobbin 15.
Wind it up.

Then, the starting end of the wire rod 14 is held down by the wire rod 14 that has been wrapped several times around the bobbin 15 at the beginning of winding, so troubles such as damage to the machine due to the starting end of the wire rod 14 being wound up and popping out without being pulled out from the bobbin 15 are eliminated. The bobbin winding is performed reliably, and the wire does not break during recoil.

<Example> Hereinafter, one example of the present invention will be described based on the drawings. FIG. 1 is a sectional view of a main part of a wire winding machine according to an embodiment of the present invention, FIG. 2 is a side view showing the arrangement of a bobbin and a chuck device, and FIG. 3 is a view taken in the direction of arrow A in FIG.
Figure 4 is a cross-sectional view of the traverse device, and Figure 5 is a cross-sectional view of the traverse device.
BB sectional view in the figure, FIG. 6 is a side view of the traverse device, FIGS. 7 a to e are explanatory diagrams showing the operation of the wire winding machine, and FIGS. 8 a to c are wire rods on a small bobbin. Figures 9a to 9d are explanatory views of the effect when winding the wire around a wide bobbin.

As shown in the figure, the wire winding machine according to the present invention includes a wire winding bobbin 15 rotatably supported on a winding machine body 11 around central shafts 12 and 13, and a drive for rotating the bobbin 15. a device 16; a brake device 17 for stopping the rotation of the bobbin 15;
A chuck device 1 that grips and holds the starting end 14a of the wire 14
8, a rotating device 19 for rotating the chuck device 18 around the bobbin 15, a guiding device 20 for guiding the wire 14 to the bobbin 15, and a rotating device 20 for reciprocating the guiding device 20 in the axial direction of the central shafts 12 and 13. traverse device 21 for moving the vehicle.

As shown in FIG. 1, the center shafts 12 and 13 are rotatably supported by the winder body 11 at a pair of left and right intervals, and the bearing portion 23 of one center shaft 12 is rotatably supported by the winder body 11. The central shaft 12 is movable by a cylinder (not shown). Bearing portion 24 of the other central shaft 13
is fixed to the winder main body 11.

The bobbin 15 has the center shafts 12, 1 on both the left and right sides.
It consists of a cylindrical winding part 15a having a central hole 25 into which the winding part 3 can be fitted, and flanges 15b formed on both sides of the winding part 15a.

In addition, a central shaft 13 protruding from the winding machine body 11
An annular body 27 for driving the bobbin is fixed to the tip of the body 27, and a pin 2 for driving the bobbin 15 is fixed to the body 27.
A spring 29 is provided which urges the pin 28 in the projecting direction. On the other hand, the pin 28 is attached to the flange 15b of the bobbin 15.
A hole 30 is drilled for the intervention.

The driving device 16 for the bobbin 15 includes a first pulley 31 fixed to the rear end of the central shaft 13 and a bobbin rotation motor 32 fixed to the main body 11.
, a second pulley 33 fixed to the motor shaft of the motor 32, and a belt 34 wound around both pulleys 33 and 31.

The brake device 17 is composed of a disk 35 fitted onto the rear end of the central shaft 13 so as to be slidable in the axial direction and rotatable integrally therewith, and an electromagnetic brake 36 fixed to the rear surface of the bearing section 24. , the disc 35 is attracted by the ON operation of the electromagnetic brake 36.

As shown in FIGS. 2 and 3, the chuck device 18 has a pair of left and right gripping pieces 38, 3 on a chuck device main body 37.
9, one of the gripping pieces 38, 39 is fixed to the device main body 37, and the other 39 is movable left and right. And the other gripping piece 39
A support rod 40 is fixed to the support rod 40, and a bracket 42 for pivotally supporting a rolling roller 41 is fixed to the end of the support rod 40. A spring 43 is interposed between the bracket 42 and the device main body 37 to release the other gripping piece 39 from the one gripping piece 38 side. Further, the rolling roller 41 includes a roller guide ring 4 that can freely move left and right with respect to the winding machine main body 11.
It is placed on top of 4. One end of the guide ring 44 has a support rod 45 fitted to the winding machine main body 11 so as to be movable left and right, and an air cylinder 46 for moving the support rod 45 left and right is connected to the support rod 45. There is. Note that the main body 46a of the air cylinder 46 is fixed to the winder main body 11.

Further, a cutting blade 47 for cutting the wire 14 is disposed on the bobbin 15 side of the device main body 37 at a position orthogonal to the gripping pieces 38, 39 of the chuck device 18. In addition, the device main body 3 of the chuck device 18
An intervening ring 49 for intervening the wire rod 14 is provided at 7 .

The rotation device 19 of the chuck device 18 is provided with a bearing shell 50 fixed to the winder main body 11, and a ring 51 is rotatably fitted around the outer circumference of the bearing shell 50. The main body 37 of the chuck device 18 is fixed to the ring 51. ring 51
A sprocket 52 is fixed to the winding machine body 11, and a wire starting end winding motor 53 is provided on the winding machine body 11.
A chain 55 is wound between the sprocket 54 of the motor 53 and the sprocket 52.

The guide device 20 includes a pair of guide rollers 5
7, 58, these guide rollers 57,
58 can be reciprocated by the traverse device 21.

The traverse device 21 is shown in FIGS. 4 to 6.
As shown in the figure, there is a support arm 61 that supports a pair of guide rollers 57 and 58, and the support arm 61 at one end.
are fixed to the winding machine main body 11, and the central shafts 12, 13 are fixed to the winding machine main body 11.
A movable rod 62 supported so as to be able to reciprocate in the axial direction of
, a pair of drive pulleys 63 and 64 rotatably supported by the winding machine main body 11, and the drive pulley 6.
3 and 64, a reducer 66 connected and driven by a drive device 16 that rotationally drives the drive pulleys 63 and 64, and a reducer 66 that is fixed to the movable rod 62 and holds the belt 65 between its lower ends. and an engaging portion 68 having a cylinder 67 for. The engaging portion 68 is interposed between the belts 65 and grips one end 65a or the other end 65b of the belt 65, thereby allowing the engaging portion 68 to freely reciprocate in the axial direction of the central shafts 12 and 13. It is configured to do so.

Note that air cylinders 70, 71a, and 71b are provided on the upper part of the engaging part 68 to forcibly move the engaging part 68 to a predetermined position at the beginning of winding.
1. The cylinders 70 and 71a are used to move the engaging part 68 to a predetermined position when starting to wind the wire, and the cylinders 70 and 71 are used to reciprocate the engaging part 68 three to five times when starting to wind the wire. used.

Further, in the figure, 72 and 73 are proximity switches for detecting the horizontal movement conversion position of the engaging portion 68 according to the width of the bobbin, and 74 is a proximity switch that moves the proximity switches 72 and 73 according to the bobbin width (winding width). The screw rod 75 is a guide rod.

Next, the operation will be explained mainly based on FIGS. 7 to 9. FIG. 7a shows the operating state during winding of the bobbin. Figure b shows a state in which the chuck device 18 is gripped after the winding is fully wound. Figure c shows the chuck-cutting state. Figure d shows the state at the start of subsequent winding. Figure e shows 3 to 5 wires 14 on the bobbin 15.
Shown is the state in which it is wrapped.

When the winding is reversed, the bobbin 15 is rotated by the bobbin rotation motor 32 as shown in FIG. 7a. At this time, the brake device 17 is left open. Further, the starting end winding motor 53 is stopped and the chuck device 18 is stopped.

When the winding is fully wound, the bobbin rotates at the state shown in FIG. and,
The chuck device 18 is rotated counterclockwise by the wire starting end winding motor 53 of the rotating device 19 to rotate the wire 1.
4 as shown in Fig. 7b. Wire rod 1 at this time
4 extends the chucking cylinder 46 shown in FIG. Then, the guide ring 44
moves toward the bobbin 15, the support rod 40 moves, and the gripping pieces 38, 39 close and grip the wire 14. Therefore, as shown in FIG. 7c, the chuck device 18 is further rotated counterclockwise by the starting end winding motor 53. Then, the bobbin 15 is connected to the brake device 1.
7, the wire 14 is cut by the cutting blade 47.

Next, the fully wound bobbin 15 is removed, a new bobbin 15 is fitted onto the central shafts 12 and 13, and winding of the wire rod 14 is started. At the beginning of this winding, the brake device 17 is released, and the winding motor 53 of the rotating device 19 is rotated in the forward direction, causing the chuck device 18 to rotate clockwise. Then, the bobbin 15 also rotates due to the tensile force of the wire rod 14, and the wire rod 14
You can start winding at 5. Then, as shown in FIG. 7e, after winding the wire 3 to 5 times around the bobbin 15, the chuck device 18 is opened and the wire 14 is pulled out from the chuck device 18. Then, if the bobbin rotation motor 32 is rotated (brake device 17 is released), the wire rod 14
Since the starting end 14a of the wire is tightly fixed on the body diameter of the bobbin 15 by 3 to 5 windings of the subsequent wire wound around the bobbin 15 under tension at the beginning of winding, the wire is wound without being pulled out from the bobbin 15. This eliminates mechanical troubles caused by the starting end popping out, and bobbin winding is performed reliably, so there is no wire breakage during recoil.

Note that when the winding width of the bobbin 15 is small, that is, when the reciprocating width of the center shafts 12 and 13 in the axial direction is small, the chuck device 1
8, the guide device 20 is connected to the flange 1 of the bobbin 15.
5b side, and the chuck device 18 is rotated. At this time, if the guide device 20 is left in the same position, the wire entering the bobbin 15 will be blocked by the chuck device 18.
Since the starting end 14a of the wire intersects with the starting end 14a of the wire, the guide device 20 is traversed and released at the position where the chuck device 18 and the incoming wire of the guide device 20 intersect.

The operation will be explained based on FIGS. 7 to 9. First, the guide rollers 57 and 58 are set at a predetermined position (the stroke end of the cylinder 70 is at a predetermined position) with the engaging portion 68 sandwiched between the cylinder 70 with a large tensile force and the cylinder 71a with a small tensile force. Then, the cylinder 71b having a large tensile force overcomes the cylinder 71a and presses the engaging portion 68, causing it to reciprocate 3 to 5 times. Then, the moving rod 62
The guide rollers 57, 58 mounted on the chuck device 18 can be traversed to avoid intersecting the chuck device 18. After once escaping from the chuck device 18, the power from the drive device 16 is transmitted to the drive pulleys 63, 64 via the reducer 66,
The belt 65 is moved in a certain direction, the front or back of this belt is gripped by the cylinder 67 of the engaging part 68, and the moving rod 62 is moved in the axial direction. When the gripping side of the engaging portion 68 with respect to the belt 65 is changed using the proximity switches 72 and 73, the engaging portion 68
8 moves in the opposite direction to the above, and guide rollers 57,
58 returns to its original position. This is repeated, and at the position where the chuck device 18 and the entry line of the guide device 20 intersect, the guide device 20 is traversed and released.

In this way, the starting end of the wire rod 14 is tightly fixed to the bobbin. The state of the wire rod 14 wound on the bobbin 15 is shown in FIG. 8c.

When the winding width of the bobbin 15 is large, the position of the guide device 20 is selected so that the entry line of the chuck device 18 and the guide device 20 do not intersect from the winding start as shown in FIG. As shown in c, the guide device 20 is traversed and wound, and the starting end of the wire rod 14 is closely fixed to the bobbin. The state of the wire rod 14 wound on the bobbin 15 in this manner is shown in FIG. 8d.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, in the guide device 20, a motor may be provided separately from the motor of the drive device 16 instead of the reducer 66 shown in FIG. Then, by using the motor, the air cylinders 70, 71a, 7
1b becomes unnecessary. Further, if the motor rotates in one direction, two cylinder chucks are required for the engaging portion.

<Effects of the Invention> As is clear from the above description, according to the present invention, a bobbin for winding wire rod rotatably supported around a central axis on a winding machine body, and a drive device for rotationally driving the bobbin are provided. a chuck device that grips the starting end of the wire; a rotating device that rotates the chuck device around the bobbin; a guide device that guides the wire to the bobbin; and a reciprocating device that moves the guide device in the axial direction of the central shaft. When starting to wind the wire onto the bobbin, the chuck device is rotated around the bobbin and the bobbin is wound several times, and then the chuck device is released and the bobbin is rotated. Since it is held down by a wire wound several times around the bobbin, it can be wound without being pulled out from the bobbin.
Problems such as damage to the machine due to the protrusion of the starting end are eliminated, bobbin winding is performed reliably, and excellent effects can be expected, such as no wire breakage during recoil.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a wire winding machine according to an embodiment of the present invention, FIG. 2 is a side view showing the arrangement of a bobbin and a chuck device, and FIG. 4 is a sectional view of the traverse device, FIG. 5 is a sectional view taken along line BB in FIG. 4, FIG. 6 is a side view of the traverse device, and FIGS. Figures 8a to 8c are explanatory diagrams of the action when winding a wire rod on a narrow bobbin, Figures 9a to d are explanatory diagrams of the action when winding a wire rod on a wide bobbin, and Fig. 10
1 is a front view showing a wire rod starting end fixing device in a conventional wire winding machine, and FIG. 11 is a front view showing a wire rod starting end fixing device in a conventional wire winding machine. 11: Winding machine body, 12, 13: Central shaft, 1
4: wire rod, 14a: starting end thereof, 15: bobbin, 1
6: Drive device, 17: Brake device, 18: Chuck device, 19: Rotating device, 20: Guide device, 2
1: Traverse device.

Claims (1)

[Claims] 1. A bobbin 15 for winding wire rod rotatably supported on the winding machine main body 11 around central shafts 12 and 13.
and a drive device 16 that rotationally drives the bobbin 15.
, a chuck device 18 for gripping the starting end 14a of the wire 14, and a chuck device 18 for holding the starting end 14a of the wire 14;
a rotating device 19 that revolves around the wire rod 1;
1. A wire winding machine comprising: a guide device 20 for guiding a wire rod 4 to a bobbin 15; and a traverse device 21 for reciprocating the guide device 20 in the axial direction of the central shafts 12, 13. 2. A bobbin 15 for winding the wire rod, a chuck device 18 for gripping and holding the starting end 14a of the wire rod 14, and a wire rod 14
In the wire winding machine equipped with a guide device 20 for guiding the wire rod 14 to the bobbin 15, the wire rod 14
is held by the chuck device 18, the chuck device 18 is made to revolve around the bobbin 15, and at the same time, the guide device 20 is moved around the bobbin 1 at the position where the chuck device 18 intersects the incoming line of the wire 14 from the guide device 20.
The wire rod 14 is wound several times around the bobbin 15 while reciprocating in the axial direction of the central shafts 12 and 13 of the wire rod 14 and released from the chuck device 18.
4 to hold the starting end of the wire rod 14, then open the chuck device 18, pull out the wire rod 14 from the chuck device 18, rotate the bobbin 15, and remove the wire rod 14 from the chuck device 18.
A wire rod winding method characterized by winding on a bobbin 15.