JPH0229579B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a method of winding thin filaments such as glass fiber wires or conductor wires in an aligned manner around the outer periphery of a tapered bobbin having a truncated conical shape. The present invention relates to a method for winding a thin filament around a tapered bobbin.

[Prior Art] FIG. 3 shows a conventional method of winding a thin filament around a bobbin.

This thin filament winding method involves rotating the cylindrical bobbin 1 about its axis while feeding the filament 2 toward the bobbin 1 from a direction perpendicular to the generatrix 3 of the bobbin 1. By reciprocating the filament body 2 along the direction parallel to the generatrix 3 using the guide arm 4, the filament body 2
are wound on the bobbin 1 in a layered manner with a trapezoidal cross section.

[Problem that the invention seeks to solve]

However, when the above-mentioned conventional wire winding method is applied to a taper bobbin 5 whose outer peripheral surface has a truncated conical shape as shown in FIG. , a component force 8 along the inclination of the tapered bobbin 5 is generated as a component force of the tension applied thereto. This causes a problem in that the filament 7 slides down along the inclination of the tapered bobbin 5, making it impossible to wind the filament in an aligned manner. For this reason, there is a fundamental defect in that it is no longer possible to smoothly unwind the filament at high speed in the axial direction indicated by the dotted line arrow in FIG. 4, which is considered to be an advantage of this type of tapered bobbin 5. has occurred, and countermeasures have been desired.

[Purpose of the invention]

This invention was made in view of the above circumstances,
The object of the present invention is to provide a method for winding thin filaments around a taper bobbin, which allows thin filaments such as glass fiber wires and conductor wires to be wound around the taper bobbin easily and reliably in an aligned state. .

[Means for solving problems]

The method of winding a thin filament around a tapered bobbin according to the present invention involves rotating a tapered bobbin having a truncated conical shape around its axis by a drive source connected to the axis, and aligning the thin filament around the outer periphery of the tapered bobbin. In the method of winding a thin filament around a taper bobbin, the top surface of the taper bobbin is placed in a horizontal state, and the filament is placed in contact with and perpendicular to the generatrix of the top surface of the tapered bobbin in the horizontal state. Feed the filamentous body toward the taper bobbin from a direction inclined toward the large diameter side of the taper bobbin by an angle substantially equal to the cone angle of the taper bobbin with respect to the direction, and in parallel with this, feed the tapered bobbin in the feeding direction of the filamentous body. It is characterized in that the filament bodies are aligned along the generatrix line by moving in orthogonal horizontal directions.

〔Example〕

1 and 2 show an example of a filament wrapping device for carrying out the present invention, and reference numeral 10 in the figures indicates a main body.

A moving table 11 is provided on the upper surface of the main body 10 so as to be able to reciprocate in the direction of the arrow in the figure via a feed shaft 14 which is rotatable by an electric motor 12 and a belt 13. Supports 15A and 15B are erected at both ends of the upper surface of the moving table 11, respectively, and a taper bobbin 16 is provided between these supports 15A and 15B. This taper bobbin 1
Reference numeral 6 has a truncated conical outer peripheral surface, and is connected to the support columns 15A and 15B at both ends of a rotating shaft 17 provided on its axis through self-aligning rolling bearings (not shown). It is rotatably provided. And this taper bobbin 1
6, the filamentary body 18 is guided so as to be perpendicular to the moving direction of the moving table 11 and in contact with the generatrix 19 on the upper surface of the outer periphery of the tapered bobbin 16 from the horizontal direction. Here, the taper bobbin 16 is arranged so that the generatrix 19 is horizontal and the angle α between a line perpendicular to the generatrix 19 and the filament 18 fed toward the taper bobbin 16 is approximately equal to the conical angle of the taper bobbin 16. The rotating shaft 17 is provided at an angle with respect to the movable table 11. The taper bobbin 16 is rotatably driven by an electric motor 22 fixed on the movable table 11 via a large gear 20 and a small gear 21 provided on the rotating shaft 17.

Next, a method of winding a thin filament around a tapered bobbin according to the present invention using the filament winding device having the above configuration will be described.

First, the electric motor 12 is driven to move the moving table 11 to the right in FIG. 1, and the large-diameter end of the tapered bobbin 16 is positioned at the tip of the filament 18 that is fed toward the tapered bobbin 16. . Next, in this state, after fixing the tip of the filament body 18 to the large-diameter end of the taper bobbin 16, the filament body 18 is manually attached to the outer periphery of the taper bobbin 16 on the large-diameter side. Wrap it several times so that it is parallel to the end surface. Next, the electric motor 22 is driven to rotate the taper bobbin 16 to wind the filament 18, and in parallel, the electric motor 12
is driven to move the moving table 11 toward the left in the figure, and the linear bodies 18 are sequentially aligned along the linear bodies 18 that have been wound several times around the outer periphery of the taper bobbin 16 in advance. At this time, by interlocking the rotational speeds of the electric motors 12 and 22, the movable base 1
1 and the rotational speed of the taper bobbin 16 are linked to keep the angle α between the filament body 18 and a line perpendicular to the taper bobbin 16 substantially constant. Then, in this state, the tapered bobbin 16 is further moved, and the filament 1 is moved to the end on the small diameter side.
8 are wound one after another in an aligned state. Then, both electric motors 12 and 22 are temporarily stopped at the position where the first wrapped layer of the filament 18 is formed. Next, while keeping the rotation of the tapered bobbin 16 stopped, move the moving table 11 toward the right in FIG. move it. Next, from this position, by rotating the taper bobbin 16 again in parallel with moving the moving table 11, the first layer of the filament body 18 is moved from the small diameter side to the large diameter side of the taper bobbin 16. The filamentary bodies 18 are sequentially wound in an aligned manner on the upper part of the wound layer to form a second wound layer. In this way, by reciprocating the movable table 11 on the main body 10 while rotating the taper bobbin 16, the linear body 1 is
8 are wound in a layered manner so as to have a trapezoidal cross section.

In this method of winding the filament around the tapered bobbin, the filament 18 is wrapped around the taper bobbin 16,
The taper bobbin 16 is attached to the taper bobbin 16 from a direction that is in contact with the generatrix 19 in a horizontal state on its upper surface and is inclined toward the large diameter side of the taper bobbin 16 by an angle α that is approximately equal to the cone angle of the taper bobbin 16 with respect to a direction perpendicular to the generatrix 19. I'm trying to send it towards that direction. Therefore, as shown in FIG.
Component force along the slope of 6 is not generated. That is, as far as the above-mentioned striatum 18 is viewed from the above-mentioned generatrix 19,
The filament 2 is wound under the same conditions as the filament 2 which is wound along the generatrix 3 of the cylindrical bobbin 1 shown in FIG. Therefore, even if the bobbin has a truncated conical shape as a whole, it can be easily wound in an aligned state like a normal cylindrical bobbin. Moreover, since the filament 18 to be wound is inclined by the cone angle α, the tension exerts a tension force on the filament 18 on the generatrix 19 toward the larger diameter side of the tapered bobbin 16. The filament 18 is wound with the filament 18 pressed positively toward the larger diameter side. Moreover, since the tapered bobbin 16 side is moved during winding while aligning, there is no need for a complicated device that is required when moving the conventional filament body 18, and a constant tension is maintained at all times. Since the filamentary body 18 can be fed in, even a filamentous body having a particularly large elastic modulus can be wound with uniform tension over the entire length of the tapered bobbin 16.

〔Effect of the invention〕

As is clear from the above description, according to the method for winding a filament around a tapered bobbin of the present invention, the generatrix on the top surface of the taper bobbin is made horizontal and the filament is wound while reciprocating in the horizontal direction. At the winding position, winding can be performed under the same conditions as for a normal cylindrical bobbin, and since the filament is tilted and a tensile force corresponding to the cone angle is applied, the filament can be wound on a tapered bobbin. It can be positively pressed against the larger diameter side, and it can be wound reliably in an aligned state without disrupting the row. Moreover, since there is no need to move the filament, the filament can always be wound with a constant tension. Therefore,
It is possible to easily and reliably wind thin filament bodies such as glass fiber wires and conductor wires onto a tapered bobbin in an aligned state without requiring any complicated equipment.

[Brief explanation of drawings]

1 and 2 show an example of the situation in which the method of the present invention is carried out, in which FIG. 1 is a plan view and FIG. 2 is a schematic side view taken along the - line in FIG. 1. 3 is a schematic diagram showing a conventional method for winding a filament, and FIG. 4 is a schematic diagram showing the conventional method applied to a tapered bobbin. 11...Moving table, 12, 22...Electric motor,
14...Feed shaft, 16...Taper bobbin, 17...
...Rotation axis, 18...Striatum, 19...Generatrix.

Claims (1)

[Claims] 1. A method for winding thin filaments onto a taper bobbin, in which the tapered bobbin, which has a truncated cone shape, is rotated around the axis by a drive source connected to the axis, and the thin filaments are wound around the outer periphery of the bobbin in an aligned manner. , the upper surface of the tapered bobbin is placed in a horizontal state, and the filament is in contact with the generatrix of the upper surface of the tapered bobbin in the horizontal state, and makes an angle approximately equal to the conical angle of the taper bobbin in a direction perpendicular to the generatrix. Feed the filamentous body toward the taper bobbin from a direction inclined toward the large diameter side of the taper bobbin, and in parallel with this, move the taper bobbin in a horizontal direction perpendicular to the feeding direction of the filamentous body to feed the filamentous body. A method for winding a thin filament around a tapered bobbin, the method comprising arranging the filament along the generatrix.