JPH0240581B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for connecting a pin for holding a twisted skein wire in a skein reeling device and a holder for fixing the pin to the skein reeling device.

British Patent No. 2,049,748 discloses a skein winding device in which a wire is wound in an annular manner around two opposing pins, and one of the pins is then rotated to form a skein. However, since the rotatable pin is attached to a holder and the axis of the pin and the axis of the holder form an acute angle,
In the case of a thin wire, it has been found that one or several turns of the folded wire are caught in the sharp angle, making it difficult to remove and sometimes causing the wire to break.

The present invention solves the above-mentioned conventional problems by improving the coupling structure between the pin and the holder.

The present invention provides a combination structure in which a pin and a holder to which the pin is attached form an acute angle, which is provided in a keeling device, and in which the pin is provided with a three-dimensional curved surface portion adjacent to the acute angle formed together with the holder. This is a joint structure of a pin and a holder, characterized in that a three-dimensional curved surface portion is formed within the acute angle.

The three-dimensional curved surface portion may be formed as a separate member from the pin and fixed to the pin, or may be formed integrally with the pin.

The three-dimensional curved surface portion is preferably provided adjacent to a plane of the pin that engages with a plane of the holder.

So that the pin can be easily replaced if it is damaged.
It is preferable that the pin and the adjacent part of the holder are permanently fixed, for example by soldering, and that said part of the holder is detachable and replaceable with the rest of the holder, for example by means of screw connection. .

Hereinafter, the present invention will be explained in more detail with reference to the accompanying drawings.

Figure 1 shows, for example, British Patent No. 2049748, which will be described later.
1 shows a coupling structure between a hollow holder 1 and a pin 4 for use by being attached to a skein rig as disclosed in the patent specification. The holder 1 has a flat surface 2 and a through hole 3 for receiving a shank 4a of a pin 4 which is held in place by a grub screw (not shown).

As shown in the figure, the pin 4 and the flat surface 2 of the holder 1 form an acute angle A, but in the conventional structure, the clearance between the pin 4 and the flat surface 2 tapers toward the tip of the acute angle. As a result, the wire was twisted by the winding operation, and the thin wire was sometimes damaged when being pulled out from the pin 4.

In order to prevent this, in the coupling structure of the present invention, pin 4
has a three-dimensional curved surface portion 5 within this acute angle. 2 and 3 show the pin 4 in a somewhat enlarged view, and as can be seen from the figures, the three-dimensional curved surface portion 5 is an extended portion formed between the protruding portion of the pin 4 and the shank 4a. It is provided in the portion 5a, and its outline is a smooth curve in both the front view of FIG. 2 and the cross-sectional view of FIG. This is 3
This is why it is called a dimensional curved surface part. The extending portion 5a has a flat surface 6, which is connected to the flat surface 2 of the holder 1 or the holder 1.
The pin 4 is positioned by engaging with one of the recesses formed in the pin 4.

In the structure shown in FIGS. 2 and 3, the extending portion 5a is formed integrally with the pin 4, but the fourth
In the illustrated embodiment, it can be seen that the three-dimensional curved surface and the flat surface 6 are formed in an insert piece or attachment 5b which is adapted to be fixed in the recess 7 of the pin 4 by brazing or otherwise.

As an example, the diameters of pin 4 and shank 4a are
Consider a pin that is 0.6mm and has a total length of 23mm. In that case, the radius of curvature of the three-dimensional curved surface portion 5 is, for example, 0.75 mm in FIGS. 2 and 4.

The pin 4 shown in FIG. 5 has a thick shank 8 with a diameter of 1.5 mm, for example, and the three-dimensional curved surface portion 5 is formed at the transition portion between the pin 4 and the shank 8. FIG. 6 shows a pair of sloping shoulders 9 which, when co-operating with a slightly deformed holder 1,
It can be seen that protrusion of the pin 4 from the holder 1 can be restricted.

In this structure, the three-dimensional curved surface portion 5 is shown to have a somewhat sharp curved surface.

In the structure of FIGS. 7 and 8, the shoulder 9 is replaced by a fusion or transition 10. In the structure of FIGS.

Pin 4 often breaks or breaks during use,
It becomes necessary to replace it. Considering the relatively small dimensions and limited tolerances, replacing pin 4 in holder 1 of Figure 1 is a fairly skilled task, and some owners are reluctant to leave it to a mechanic. Will. In order to make this replacement work a simple task that even a machinist can easily perform in a minimum amount of time,
As shown in FIG. 9, a configuration in which the holder 1 is provided with a detachable holder chip 1a may also be adopted. The holder tip 1a has a threaded end 11 and is adapted to be screwed into an internal thread 12 of the hollow holder 1. The pin 4 is attached to the holder chip 1a in a separate manufacturing step and is permanently fixed, for example by soldering, with good tolerances.

Various other embodiments may be possible within the scope of the invention.

Hereinafter, a skeining device equipped with the above-mentioned pin and holder combination structure will be explained based on FIGS. 10 to 13.

The attached drawings show a conductor storage reel (not shown) to be placed on the right side of the skein winding device shown in FIGS. 10 and 11, and a coil winding machine (not shown) to be installed on the left side. ), a dual skein device is shown for simultaneously skeining two wires.

During the actual winding of the coil, i.e. when no skein winding operation is performed, the wire is inserted into the ceramic eye 21.
It passes through the guide eye 22 provided on the shuttle member 23, which is stopped at this stage of the working process, and exits from the second ceramic guide 24 to reach the coil winding machine. The shuttle member 23 is the rail 25, 25
It is a sliding member that moves between the The sliding member is provided with a lever member having two eyes 22, and the lever member is connected to a link member 26 attached to a circulation chain 27 that circulates between two chain wheels 28, 29. There is. The chain wheel 28 is the motor 3
0, and the chain wheel 29 is an idler.
When the motor 30 operates, the shuttle member 23 moves back and forth on the rail 25, and the eyes 22 move on respective annular tracks. The chain 27 includes a marker member 32 which cooperates with a proximity switch 33; when the proximity switch 33 is energized, the arrival of the marker member 32 stops the chain drive and places the shuttle member in position. It acts to stop it.

The two hollow holders 1 are each provided with the pin 4 bent backwards, so that the eye 22
A hook member is formed on the trajectory that the wire follows when it moves on the annular trajectory. The hook member or pin 4 thus locks the wire each time the shuttle member 23 reaches the end of the device. pin 4
On the opposite side of the hook member formed by
pins 37, 37 are provided. The pins 37, 37 normally project into the wire track, and when the shuttle member 23 reciprocates, the wire is wound around the pins 4 and 37, thereby creating multiple windings. Pin 37, 37
is attached to a plate 38 configured to pivot about an axis 39 under the action of a solenoid 40. The entire member with the pins 37, 37 can be adjusted in position in the longitudinal direction of the device, so that the required length of the skein can be adjusted within the length of the annular track formed by the eye 22. You can change it accordingly. The pins 37, 37 project through the plate which serves to release the formed skein from the pins when they are retracted.

In order to give twist to the multi-wound wire, the holders 1, 1 are configured to be rotatable by a belt transmission means 41 driven by a motor 42 and a pulley 43, and the pulley 44 is configured to be rotatable by a belt transmission means 41 driven by a motor 42 and a pulley 43. It is provided for. The motor 42 has
A positioning motor 45 is provided in combination. This positioning motor 45 is a motor 42
but when the stator is energized it stops in place and brings the pins 4,4 to the final position shown in the figure, in which position said pins 37,37 are retracted. After the coil winding machine is started, the formed skein is pulled out through the hollow holder 1 and the eye 24.

The operation of this device will be briefly explained below. As mentioned above, while the coil winding machine operates,
The wire passes inside the skein gin. That is, it enters through the eye 21, passes through the eye 22, and exits through the hollow holder 1 and the eye 24. When the coil is sufficiently wound, the coil winding stops, and the motor 30 drives the chain 27 to move the shuttle member 23 back and forth. Connect the wires to pins 4 and 3
The chain 37 is wound a certain number of times during 7, usually adjusted by a timer, and when the appropriate number of turns is completed, the proximity switch 33 is activated, and when the marker 33 reaches the switch, the chain 37 is stopped. to stop the shuttle member 23 at approximately the position shown.

The motor 42 is then started to give the pin 4 a predetermined number of rotations to form the skein. After a predetermined number of rotations, the motor 42 is switched off and the positioning motor 45 is energized to correct the final position of the pins 4,4. Next, pins 37 and 37 are connected to solenoid 4.
0, and the skein is pulled out when the coil winding machine is started. The above cycle is repeated.

Furthermore, when using two or more coil winding machines, a plurality of winding devices may be stacked as required.

[Brief explanation of drawings]

All drawings relate to embodiments of the present invention.
Figure 1 is a front view of the coupling structure between the pin and holder, Figure 2 is an enlarged front view of the pin in Figure 1, and Figure 3 is the front view of the pin and holder.
4 is a front view showing another aspect of the pin, FIG. 5 is a front view showing still another aspect of the pin, FIG. 6 is a side view of the pin in FIG. 7 is a front view showing still another aspect of the pin, FIG. 8 is a side view of the pin in FIG. 7, FIG. 9 is a front view showing another aspect of the coupling structure between the pin and the holder, and FIG. 11 is a plan view of the device shown in FIG. 10; FIG. 12 is a partially cutaway right side view of the device shown in FIG. 10;
FIG. 13 is a left side view of the device shown in FIG. 10. 1...Holder, 1a...Holder chip, 2...Plane,
3...Through hole, 4...Pin, 4a, 8...Shank, 5
...Three-dimensional curved surface part, 5a... Extension part, 5b... Attachment, 6... Plane, 7... Concave part, 9... Shoulder part, 10...
Transition part, 11... Threaded end, 12... Internal thread, A...
acute angle.

Claims (1)

[Scope of Claims] 1. In a combination structure that is provided in a keeling device and in which a pin and a holder to which the pin is attached form an acute angle, the pin has a three-dimensional curved portion adjacent to the acute angle formed together with the holder. A coupling structure for a pin and a holder, characterized in that a three-dimensional curved surface is formed within the acute angle. 2. The coupling structure according to claim 1, wherein the three-dimensional curved surface portion is provided separately from the pin, and the separate member is fixed to the pin. 3. The coupling structure according to claim 1, wherein the three-dimensional curved surface portion is provided integrally with a pin. 4. The coupling structure according to claim 1, 2, or 3, wherein the three-dimensional curved surface portion is provided adjacent to a plane of a pin that engages with a plane of the holder. 5. Claims 1, 2, 3, or 4, wherein the holder comprises a holder main body and a holder chip detachably fixed to the main body, and the pin is permanently fixed to the holder chip. Bond structure as described.