JPH0699083B2 - Automatic winding switching device for wire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an automatic winding and switching device for a wire.

<Prior Art> Wire rod winding bobbins (winding frames) are arranged side by side or front and rear, and while one bobbin is winding the wire rod, the other full bobbin is replaced with a new bobbin to remove the wire rod. In the automatic winding line for continuous winding of wire rods, the wire rod feeding path that was directed from the traverser to the fully wound bobbin is switched to the new bobbin direction to start new winding, and the wire rod is cut at the boundary. Equipment required.

This kind of wire rod winding / switching device is designed, manufactured, or purchased and used by a person in charge in various ways from a manual type to a fully automatic type.

As an automated winding switching device, the tail of the wire wound around a conventional full bobbin automatically rides over the collar of the bobbin and the collar of the new bobbin and winds onto the new winding barrel, and the wire is wound between both bobbins. It was my best to make it cut.

Currently, according to the standard, the lead wire for electronic equipment is stipulated so that the end of the wire at the beginning of winding should be left outside the bobbin by 1 m or more.
Since it is not possible with the conventional automatic switching device to wind the winding start with a long wire end, the bobbin is generally switched manually.

<Problems to be Solved by the Invention> The present invention is directed to an automatic winding changeover device having a structure in which the wire end can be wound outside the bobbin by an arbitrary length and the operation is reliable and the cost is low. For development purposes.

<Means for Solving the Problem> The automatic winding switching device of the present invention allows the wire to be alternately wound on a plurality of bobbins, and in an automatic winding line that continues winding even when the full bobbin is replaced, In addition to the left and right bobbin drive cantilever shafts that face each other with a common axis and can be misaligned only when replacing the bobbin, and the bobbin cap original mechanism that fixes the bobbin to each of the above cantilever shafts, the bobbin collar and the hob The left and right bobbin caps with the outer ring part having the wire rod temporary winding step on the outer circumference of the same diameter and the cutout window on the wall surface of the temporary winding step show the face, and the tip is pressed against the bobbin collar by the spring, The bobbin cap has a tapered surface for positioning a bobbin hole on the inside, and the shaft portion for positioning the outer ring supporting disc and a collar portion on the outside. , The outer ring portion is outside the support disc. An elastic material consisting of an outer ring that covers the edge cylindrical portion and penetrates the wire rod catching protrusion, and an L-shaped temporary winding step portion that enters into the gap between the bobbin collar and the bobbin collar along the supporting disc to form a circumferential groove. By tightening the nut at the tip of the cantilever shaft, the bobbin is centered and fixed, and the circumferential groove is formed by the temporary winding step portion at the same time.

<Operation> In the automatic winding switching device of the present invention, since the left and right bobbin driving cantilever shafts face each other with the common axis, the bobbins are attached to the respective cantilever shafts. When the bobbin caps at the ends are tightened and fixed, both bobbins are arranged side by side with the common axis center, and the outer ring portions of the bobbin caps are arranged at a narrow interval therebetween.

The traverser mechanism that moves the wire passages sent to each bobbin to the left and right and winds it around the bobbin barrel evenly is designed so that it can be used for both bobbins when it is used for both bobbins. Move the feeding path sideways.

That is, when one of the operating bobbins is fully wound, the traverser mechanism moves the wire feeding path to the upper side of the collar closer to the other bobbin. At the same time, the switching guide roll, which was in the standby position, advances to the position where it comes into contact with the traveling wire rod. The advance position is just above the wire rod temporary winding groove or step on the outer ring of the new bobbin cap that started to rotate, so that the running wire rod crosses the collar of the full bobbin and the outer ring of the cap diagonally. , The bobbin of the newer bobbin is inserted into the circumferential groove or step of the outer ring portion of the cap and wound up. After winding the required length, move the guide roller for switching back to the original standby position, move the traverser mechanism, and direct the wire feed path to the new bobbin winding drum. It moves from the step to the body of the new bobbin, and regular winding starts.

After winding to a certain extent, advance the cutter between the outer ring parts of both caps to cut off the wire material connected between both bobbins, stop the rotation of the cantilever shaft on the full bobbin side, and hold this on the other side. The process of moving the bobbin to a position different from the axis, removing the fully wound bobbin, mounting a new bobbin to the original position, and waiting for the next bobbin to be fully wound is repeated.

Particularly, according to the present invention, by tightening the nut at the tip of the cantilever shaft, centering and fixing of the bobbin and formation of the circumferential groove by the temporary winding step portion are simultaneously performed. In addition, the cutout window and turning piece of the temporary winding step prevent the wire wound on the temporary winding step from loosening and floating after the wire is divided when the bobbin is switched.

<Embodiment> FIGS. 1 to 3 show an embodiment of the present invention. In the figure, W is a running wire rod, B is a winding bobbin, Bf is a collar thereof, C is a cap for fixing the bobbin, 1 is a cantilever shaft for driving the bobbin, and 2 is a bobbin fixed to the cantilever shaft. Outer ring part added to the cap, 3 wire wire temporary winding step part of the outer ring part, 4 wire rod catching projections, 5 traverser mechanism for moving the wire rod feeding path to the left and right, 5a its pulley, 5b two pairs A guide roll pair or a slide bar, 6 is a switching guide roll, and 7 is a machine frame of the winder.

1 and 2 show a state in which a wire W is wound around a left bobbin B in the drawings, a pulley 5a that moves left and right together with a traverser mechanism 5 and a guide roll pair 5b are at the center of the stroke, that is, the winding cylinder of the left bobbin B. It comes above the center.

When the fact that the bobbin B on the left side is near full is known by a well-known feeder wire measuring machine or the like, the measuring machine outputs a full-scale forecast signal in this embodiment. As a result, the cantilever shaft 1 on the right side and the bobbin B on the right side, which have been resting, start rotating at the same speed as the left side. Further, by the above signal, the pulley 5a of the traverser mechanism 5 and the guide roll pair 5b stop above the inside of the collar Bf near the new bobbin. The stopping time is short at the positions of 5a 'and 5b' shown by the chain line in FIG. At the same time, the switching guide roll 6 advances axially from the standby position to the position 6'in FIGS. The wire W is wound around the tsuba for a short time and waits for a full length signal.

Soon after the measuring instrument gives a full signal, the pulley 5a and the guide roll pair 5b immediately move to the new bobbin B side, and the new bobbin collar Bf above or near the wire rod temporary winding step portion 3 of the bobbin cap. Stop above (see solid line in Fig. 4). In this way, when the feeding path of the wire rod moves to the new bobbin side, the rear end of the wire rod W wound around the brim of the old bobbin diagonally crosses over the brim Bf and both cap outer ring portions 2, and the switching guide roll 6 Hit
As it rotates, it falls into the groove between the wire rod temporary winding step 3 of the new bobbin cap 2 and the bobbin collar Bf and is wound up.

The cap C shown enlarged in FIG. 5 has a tapered surface on the inside.
C ₁ has a shaft portion C ₂ and a collar portion C ₃ on the outer side, and is a support disc for the outer ring portion 2.
17 has a center hole fitted in the shaft portion C ₂ and is pushed by the collar portion C ₃ . The outer ring of the outer ring portion 2 covers the outer edge cylindrical portion 17a of the support disc 17, penetrates the wire rod hooking projection 4, and is fixed to the support disc 17. The temporary winding step portion 3 of the outer ring portion 2 has an L-shaped cross section,
Insert the nut along the support disk 17 into the gap between the bobbin collar Bf and the nut.
It is pressed at 18 to form a circumferential groove.

When the nut 18 is tightened, the bobbin B is centered and fixed by the tapered surface C ₁ of the cap C, but at the same time, the flange C ₃ of the cap C pushes the support disk 17 to temporarily screw the outer ring portion 2. 3 is pressed against the bobbin B to form a circumferential groove closed without any gap. Since the outer ring portion 2 can be compressed and deformed by the elasticity of urethane rubber, it can be applied to the tightening error of the nut 18, the outer surface of the bobbin B, and the unevenness.

The length wound into the stepped portion 3 is measured by a rotation pulse counter or the like attached to the cantilever shaft 1, and when the required length is reached, the switching guide roll 6 is retracted to the standby position and the pulley 5a of the traverser mechanism is used. , The guide roll pair 5b is made to reciprocate left and right according to the body width of the new bobbin B, and winding by the new bobbin B is started in this formula. After winding the new bobbin B to some extent (to the extent that winding can be continued even if the wire is cut), when the cutter 8 is inserted into the gap between the cap outer ring portions 2 and 2 on both sides as shown by the chain line in FIG. As described above, the wire rod W that has been rotating together with both bobbins B, B while being diagonally climbed over the outer ring portions 2, 2 is cut. At that time, the wire rod at the winding start portion wound on the wire rod temporary winding step portion 3 secures the tension necessary for cutting, and the wire rod having the winding start length is not allowed to play.

In this embodiment, as a mechanism for removing the fully wound old bobbin B while the new bobbin B is winding the wire W, in this embodiment, the supporting and driving mechanism of each cantilever shaft 1 is provided with a driving part via a universal joint 11. It is divided into 9 and movable part 10. The movable part 10 directly supports the cantilever shaft 1 to rotate it.

When fully wound, the movable part 10 is the cantilever shaft 1 with the bobbin B attached.
With this, the bobbin B ′ is swung around the swivel axis 12 to reach the position indicated by the chain line in FIG. 2, and the bobbin B ′ is manually or automatically removed. Moving part 10
Since the weight of the fully wound bobbin is considerably heavy, a supporting leg 13 having wheels at its lower end is provided in order to facilitate turning.

FIG. 5 shows the cap outer ring portion 2 of the bobbin on the left side of FIGS.
Indicates. The temporary winding step portion 3 of the wire rod forming the circumferential groove between the bobbin collar Bf and the bobbin collar Bf is wound at the rear portion of the wire rod when the right bobbin is full, but the wire rod wound around this is fully wound. Keep winding tension only while connected to the bobbin. Therefore, when the boundary portion is divided by the cutter 8, the wire rod wound around the step portion 3 loosens and floats up, and continues to rotate. A provision for avoiding this is the temporary winding step portion 3'of FIG. That is, notched windows are opened in places similar to those shown in FIG. 5, and from there, a rotating piece 15 supported by a support shaft 16 appears, and a spring 14 presses the bobbin collar Bf to the side surface. With this, when the wire W enters the step 3 ', the winding force pushes the top 15 to the position of the chain line and enters the bottom of the step as indicated by W'.
Even if the winding force is lost by cutting the wire rod, the wire rod W cannot be slackened outward because the top 15 is closed. It is full and locked up until the bobbin cap is removed.

Although one embodiment has been described above, it is needless to say that the present invention can be variously changed and applied depending on the implementation conditions and the known technology of the engineer in charge without changing the gist thereof.

<Effects of the Invention> The present invention is an automatic winding switching device for automatically changing bobbins and continuing winding, in which the winding start wire end of each bobbin is taken out of the bobbin by the required length and wound and cut. A simple device to obtain could be provided.

In this invention, the bobbin and the bobbin cap are fitted on the cantilever shaft, and the nut is tightened to center and fix it.However, when the bobbin is switched, an outer ring part for moving the wire rod is added to this cap, and this temporary ring step A peripheral groove for temporary winding is formed in the gap with the bobbin.

The cap has a taper surface for centering and fixing the bobbin, a shaft portion for positioning the outer ring portion, and a collar portion. Since the outer ring portion is an elastic material that can be compressed and deformed, if the nut at the tip of the cantilever shaft is tightened, the bobbin The centering and fixing and the formation of the temporary winding circumferential groove between the outer ring portion temporary winding step portion and the bobbin are accurately performed at the same time.

Even if the side surface of the bobbin is distorted or uneven, a circumferential groove is formed without a gap, and there is no risk of a thin wire rod getting stuck in the gap.

Further, according to the present invention, there is a notched window on the stepped wall surface of the outer ring portion in which the circumferential groove for temporary winding of the wire is formed, the turning piece is exposed from this window, and its tip is pressed against the bobbin collar outer surface by the spring. ing. Wire rods that are wound into the circumferential groove can enter the groove bottom,
Since the rotating piece is used so that it cannot be escaped, when the wire rod temporarily wound around the circumferential groove is cut between both bobbins, there is no danger of it loosening and continuing to rotate.

The automatic winding changeover device of the present invention is capable of automatically mass-producing the winding wire rod in which the winding start end is sufficiently extended to the outside of the bobbin, and the device is extremely simple. It is a great contribution.

[Brief description of drawings]

FIG. 1 is a front explanatory view of an embodiment of the present invention, FIGS. 2 and 3 are plan views and side views thereof, FIG. 4 is a front view for explaining the winding switching operation, and FIG. 5 is a bobbin cap outer ring portion. 6 is a sectional view of an example of another embodiment of the outer ring portion, in which 1 is a cantilever shaft for driving a bobbin, 2 is a bobbin cap, 3
Is a wire rod introduction circumferential groove, 5 is a traverser mechanism, 6 is a switching guide roll, and 8 is a cutter.

Claims (1)

[Claims] 1. A wire rod is wound around a plurality of bobbins alternately.
In an automatic winding line that continues to wind even when the full bobbin is replaced, the left and right bobbin drive cantilever shafts that are always facing each other with a common axis and can be misaligned only when the bobbin is replaced In addition to the original mechanism of the bobbin cap that secures the bobbin, the left and right bobbin caps are equipped with an outer ring part that has a wire rod temporary winding step on the outer circumference that is approximately the same diameter as the bobbin collar, and the notch on the wall surface of the temporary winding step. The bobbin cap is exposed from the window, and the tip of the spring is pressed against the bobbin collar by a spring so that the wire rod can enter the stepped portion and cannot be ejected. On the outer side, the outer ring part supporting disc positioning shaft part and the collar part are provided, and the outer ring part covers the outer edge cylindrical part of the supporting disc,
The cantilevered shaft is an elastic member composed of an outer ring that penetrates the wire rod hooking projection, and an L-shaped temporary winding step portion that crosses into the gap between the bobbin collar and the support disk to form a circumferential groove. An automatic wire winding / winding switching device characterized in that a bobbin is centered and fixed and a circumferential groove is formed by a temporary winding step by tightening a nut at the tip.