JPH022780B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a wire end clamp drawing device in a winding machine. In a winding machine that winds wire onto a bobbin by reciprocating a traverser roller in the winding width direction, a stopper flange formed at the base of the bobbin shaft and a flange on one side of the bobbin opposite to the flange The present invention relates to a wire end clamp drawing device for clamping the wire end between the two.

(Prior art) A fully wound bobbin, on which a predetermined amount of wire has been wound, is removed from the bobbin shaft, and then when an empty bobbin is fitted onto the bobbin shaft, the end of the wire is attached to the base of the bobbin shaft. In order to automatically clamp the wire between the stopper flange formed around the shaft and the flange on one side of the bobbin, the wire clamping mechanism must be placed in a standby position where it does not interfere with the traverser roller and the bobbin shaft, and the bobbin The wire end can be clamped between the shaft bobbin (full bobbin) and the traverser roller, and the wire end can be clamped between the stopper flange of the bobbin shaft and the flange on one side of the bobbin (empty bobbin). It is necessary to control the movement of the drawer between the drawer and the drawer position, which tends to complicate the structure and increase costs. Moreover, if the movement of the clamp mechanism is not reliably controlled, the wire may be wound incorrectly on the bobbin.

(Object of the Invention) In view of the above-mentioned conventional problems, the object of the present invention is to reliably sandwich the end portion of the wire between the stopper flange of the bobbin shaft and the flange on one side of the bobbin. Another object of the present invention is to provide a wire end clamp drawing device that has a simple structure and can reduce costs.

(Structure of the Invention) In order to achieve the above object, the present invention reciprocates the traverser roller in the winding width direction of the bobbin while rotating the bobbin of the bobbin shaft disposed in the machine body. In a winding machine that winds a wire onto a bobbin, a wire end is provided between a stopper flange formed at the base of the bobbin shaft and a flange on one side of the bobbin opposite to the flange for holding the end of the wire. The clamp drawer includes a base pivotably supported on the machine body so as to be swingable from an operating position approaching the bobbin shaft and the traverser roller to a standby position retreating, and the movable base has a base that is pivoted in the operating position. a clamp position for clamping the wire end between the bobbin of the bobbin shaft and the traverser roller in the state of
A clamp mechanism is provided that slides from the clamp position to a pull-out position where the wire end is pulled out through the front surface of the stopper flange of the bobbin and through the front surface of the flange.

[Function] In this embodiment configured as described above, the movable base is swung around its pivot from the standby position to the operating position,
A clamp mechanism located at a clamp position on the movable base clamps the wire end between the bobbin of the bobbin shaft and the traverser roller. here,
The fully wound bobbin is detached from the bobbin shaft, and the wire is severed between the clamp mechanism and the fully wound bobbin due to its tensile force.

Thereafter, the clamp mechanism is slid from the clamp position to the wire pull-out position, so that the wire end clamped by the clamp mechanism passes through the front surface of the stopper flange of the bobbin shaft and then the front surface of the flange. be drawn out.

Here, by fitting an empty bobbin into the bobbin shaft, the wire end portion is reliably held between the stopper flange and the flange on one side of the bobbin.

(Example) An example of the present invention will be described below with reference to the drawings.

In FIG. 1, a bobbin shaft 2 whose driving source is a motor is rotatably disposed approximately in the center of a machine body 1, and a shaft for winding a wire W is disposed around the bobbin shaft 2. The bobbin 3 is removably fitted by being inserted into and removed from the bobbin shaft 2 in the axial direction.

A traverser shaft 4 that reciprocates in an axial direction parallel to the bobbin shaft 2 is disposed at a predetermined position of the machine body 1 on the side of the bobbin shaft 2. A traverser arm 5 is disposed around the tip axis of the traverser shaft 4. A traverser roller 6 is attached to the tip of the arm 5 and reciprocates in the winding width direction of the bobbin 3 on the bobbin shaft 2 together with the traverser shaft 4 and the traverser arm 5 to wind and guide the wire W. is pinned so that it can rotate freely.

Now, at a predetermined position of the machine body 1 where the bobbin shaft 2 and the traverser roller 6 are arranged, a flat band-shaped movable base 7 has a support shaft 8 parallel to the bobbin shaft 2 at one end (the right end in FIG. 1). It is mounted so that it can be sung around an axis. This movable base 7 is
It is swung around a support shaft 8 and by a swing cylinder 9 from an operating position where it approaches the bobbin shaft 2 and traverser roller 6 to a standby position where it waits behind. The swing cylinder 9 has a proximal end of its cylinder body pinned 11 to a bracket 10 fixed to the body 1, and a tip end of a rod 9a of the cylinder pinned 12 to the other end of the movable base 7. There is.

A slide cylinder 13 is disposed on the movable base 7 along the longitudinal direction of the base 7.
As shown in FIG. 3, this slide cylinder 13 has mounting brackets 14 and 15 fixed to both left and right ends of the base 7, and a piston rod 16 installed between these brackets 14 and 15 using fluid pressure. The cylinder body 17 is guided by a slide shaft 20 that is connected to the cylinder body 17 via a sprocket 18 and a chain 19 and is installed between the mounting brackets 14 and 15. It is mainly composed of a slide block 21 that slides with twice the stroke of the main body 17. A clamp mechanism 22 for clamping and unclamping the wire W is disposed on the slide block 21.
The clamp mechanism 22 is mainly composed of a clamp cylinder 23 fixed on the slide block 21 and a pair of clamp arms 24, as shown in FIG. By the movement of the piston rod 25,
A pair of clamp arms 24 are moved around a pin 26 in a clamping direction or an unclamping direction.

Further, when the movable base 7 is in the operating position as shown in FIGS. 5 and 6, the clamp arm 24 of the clamp mechanism 22
bobbin (full bobbin) 3 and traversal roller 6
From the clamp position where the wire end is clamped between The slide stroke of the clamp mechanism 22 is set so that the movable base 7 can be slid to a pull-out position where it can be clamped between the bobbin 2a and the flange 3a on one side of the bobbin (empty bobbin) 3, and the movable base 7 is As shown in FIG. 1, when in the standby position, the clamp mechanism 22 is configured so that it can slide back to the original position without interfering with the bobbin 3 of the bobbin shaft 2 and the traverser roller 6.
A swing angle of the movable base 7 about the support shaft 8 is set.

In the wire end clamp drawing device configured as described above, the traverser roller 6 is used to wind the bobbin 3 while rotating the bobbin 3 on the shaft in a predetermined direction by the bobbin shaft 2 which uses a motor as the drive source. When winding the wire W onto the bobbin 3 by reciprocating in the width direction, the movable base 7 is held at a standby position by the swing cylinder 9, as shown in FIG.

When the wire W is wound by a predetermined amount onto the bobbin 3 on the bobbin shaft 2, the rotation of the bobbin shaft 2 and the bobbin 3 is stopped, and the reciprocating motion of the traverser roller 6 is stopped. Then, the swing cylinder 9 causes the movable base 7 to move around the support shaft 8 at the fifth position.
As shown in the figure, the bobbin (full bobbin) 3 on the bobbin shaft 2 is connected to the bobbin (full bobbin) 3 on the bobbin shaft 2 by the pair of clamp arms 24 of the clamp mechanism 22 which is swung to the operating position and is in the clamp position on the movable base 7. The end portion of the wire between it and the traverser roller 6 is clamped. In this state, the bobbin (full bobbin) 3 is detached from the bobbin shaft 2 in the axial direction of the bobbin shaft 2 by an unillustrated detachment device, and the tension between the bobbin 3 and the clamp arm 24 that occurs at this time is The wire W between these two members 3 and 24 is severed by the force.

When the bobbin (full bobbin) 3 is detached from the bobbin shaft 2, the clamp mechanism 22 is slid by the slide cylinder 13, and the clamp mechanism 22
The clamp arm 24 clamps the wire end portion on the traverser roller 6 side and pulls it out to a pull-out position where it passes the front surface of the stopper flange 2a of the bobbin shaft 2 by a predetermined distance, as shown in FIG.

As described above, when the wire end portion on the traverser roller 6 side is pulled out to the pull-out position, another bobbin (empty bobbin) 3 is fitted into the bobbin shaft 2 in the axial direction of the shaft, and the bobbin shaft 2 The bobbin 3 is fitted onto the shaft of the bobbin 3, and the wire end portion is held between the stopper flange 2a of the bobbin shaft 2 and the flange 3a on one side of the bobbin 3. Then, the clamp arm 24 is moved by the clamp cylinder 23.
is unclamped, and the movable base 7 is swung around the support shaft 8 by the swiveling cylinder 9 to the original standby position.

When the movable base 7 has swung to the standby position, the clamp mechanism 22 is slid by the slide cylinder 13 to its original position as shown in FIG. 1, while the bobbin shaft 2 and bobbin 3 are rotated and The traverser roller 6 reciprocates, and the wire W is wound around the bobbin 3 on the bobbin shaft 2.

(Effects of the Invention) As exemplified above, according to the present invention, the stopper flange of the bobbin shaft is moved by sliding the wire clamping mechanism from the clamping position to the pull-out position with respect to the movable base in the operating position. and the flange on one side of the bobbin, and by supporting the movable base so that it can swing from the operating position to the standby position, the movable base can be moved to the operating position. This eliminates the need for a mechanism for guiding movement from to the standby position, resulting in a simple structure and cost reduction.

In particular, the movable base has a clamp position that clamps the wire end between the bobbin of the bobbin shaft and the traverser roller when the base is in the operating position, and a front surface of the stopper flange of the bobbin shaft from the clamp position. A clamp mechanism is provided that slides through the front surface of the flange and into a pull-out position for pulling out the wire end.

Therefore, when the wire end is clamped by the clamp mechanism in the clamp position, the clamp mechanism is slid to the wire pull-out position, thereby pulling the wire end through the front surface of the stopper flange of the bobbin shaft. It can be pulled out by the length that passes through the front surface of the flange. As a result, even if the wire is a thin copper wire or other wire with low rigidity, the end of the wire can be reliably pulled out to the drawing position passing through the front surface of the stopper flange of the bobbin shaft, and in the drawing state, the By fitting the bobbin into the bobbin shaft, there is an effect that the wire end portion can be reliably and well sandwiched between the stopper flange and the flange on one side of the bobbin without any pinching defects.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
The figure is a front view showing the main parts of the winding machine, Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a sectional view taken along the - line in Figure 1, and Figure 4 is an enlarged view of the clamp mechanism. 5 is a front view showing how the clamp mechanism clamps the wire end between the bobbin and the traverser roller, and FIG. 6 is a front view showing how the clamp mechanism is slid to the pull-out position and the wire end is attached to the bobbin. FIG. 3 is a front view showing a pulled out state so that it can be held between a shaft and a bobbin. 1... Body, 2... Bobbin shaft, 3... Bobbin, 6... Traverser roller, 7... Movable base, 8... Support shaft, 9
... Swing cylinder, 13 ... Slide cylinder, 22
... Clamp mechanism, 23 ... Clamp cylinder, 24
...clamp arm.

Claims (1)

[Claims] 1. In a winding machine that winds wire onto a bobbin by reciprocating a traverser roller in the winding width direction of the bobbin while rotating the bobbin of a bobbin shaft disposed on the machine body, A wire end clamp/drawing device for clamping a wire end between a formed stopper flange and a flange on one side of a bobbin opposite to the flange, the wire end clamp and drawer being A movable base is pivotally supported so as to be swingable from an operating position approaching the roller to a standby position retreating, and the movable base includes a movable base that is arranged between the bobbin of the bobbin shaft and the traverser roller when the base is in the operating position. A clamp mechanism is provided that slides between a clamp position where the wire end is clamped and a pull-out position where the wire end is pulled out through the front surface of the stopper flange of the bobbin shaft and the front surface of the flange from the clamp position. A device for pulling out a wire terminal clamp in a winding machine, characterized in that: