JPH0669866B2 - Filament winder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mandrel in which a filament, that is, a bundle of long fibers such as glass fiber, carbon fiber, or aramid fiber, is impregnated with resin, or a filament which is previously impregnated with resin is used as a mandrel. The present invention relates to a filament winder that is wound to form a filament laminate.

[0002]

2. Description of the Related Art The above-mentioned filament winder 100 is
As shown in FIG. 22, it has the following structure.

That is, the mandrel 116 is rotated in front of the apparatus body 120 while the feeding apparatus body 120, in which the filament F is impregnated with resin and fed out, is reciprocally moved in the lateral direction. Then, by this, the filament F is spirally wound around the mandrel 116 over a plurality of layers to form a filament laminated body (Japanese Patent Laid-Open No. 2-231141, Japanese Utility Model Laid-Open No. 2-72271).
issue).

[0004]

In the filament winder 100 having the above structure, the filament F fed from the tip of the feeding device main body 120 is the mandrel 11.
6, when the filament F travels in the traveling direction and the filament F has a different winding angle with respect to the mandrel axis that is spirally wound around the mandrel 116, that is, a helical angle, the filament at the tip of the feeding device main body 120 is different. F bends.

However, since the glass fiber, carbon fiber or aramid fiber has a high elastic modulus, this bending causes
The filament F may be broken and fuzzed.

[0006]

SUMMARY OF THE INVENTION Therefore, in view of the above problems, the present invention is to prevent the filament from bending at the tip of the feeding device body while keeping the distance between the tip of the feeding device body and the mandrel constant.
The present invention provides a filament winder that can be wound around a mandrel.

[0007]

In the filament winder of the present invention, a mandrel is rotated around the mandrel shaft in front of the main body of the filament feeding device to spirally wind the filament around the mandrel. A filament winder forming a laminated body, wherein the feeding device body is a y-axis direction which is a filament feeding direction with respect to the mandrel,
The mandrel is provided so as to be movable in an x-axis direction orthogonal to the y-axis direction, and the mandrel is provided so as to be rotatable on an xy plane constituted by the x-axis and the y-axis. The angle between the filament and the mandrel axis that is fed along the direction is a helical angle that is the winding angle of the filament with respect to the mandrel, so that the mandrel is swung on the xy plane and the feeding device main body is rotated. A control device for controlling the movement operation in the x-axis direction and the y-axis direction is provided.

[0008]

[Operation] With the filament winder with the above configuration,
The control device turns the mandrel on the xy plane so that the angle between the feeding direction (y-axis direction) of the filament fed from the feeding device main body to the mandrel and the mandrel axis becomes a helical angle and the feeding device main body is rotated. The movement operation in the x-axis direction and the y-axis direction is controlled. This allows
The filament is not bent at the tip of the main body of the feeding device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a filament winder 10 of this embodiment, and FIG. 2 is a plan view thereof.

Reference numeral 12 is a mounting table on which a feeding device 14 and a turning device 18 for turning the mandrel 16 are placed.

First, the feeding device 14 will be described.

Reference numeral 20 is a main body of the feeding device. The main body 20 has a plate-like shape and has a filament F at its front end.
Has a feeding port 30 of.

Reference numeral 22 is a spool wound from the rear portion of the main body 20. A filament F such as carbon fiber is wound around the spool 22.

Reference numeral 24 denotes a resin impregnating device provided in the central portion of the main body 20, and the resin liquid is accumulated in the tank of the resin impregnating device 24.

Reference numeral 26 is a roller for guiding the filament F from the spool 22 to the resin impregnating device 24.

Reference numeral 28 is a roller for guiding the filament F from the resin impregnating device 24 to the delivery port 30 at the tip of the main body 20.

Reference numeral 32 is a feeding table on which the main body 20 is placed. A rail 34 is provided in the lateral direction of the feeding table 32 (hereinafter referred to as the x-axis direction), and the main body 20 can reciprocate along the rail 32 in the x-axis direction.

Reference numeral 36 is a motor for moving the main body 20 in the x-axis direction.

Reference numeral 38 indicates the vertical direction of the mounting table 12 (hereinafter,
It is a rail provided in the y-axis direction). The feeding table 32 is placed on the rail 38, so that the feeding table 32 is movable in the y-axis direction.

Reference numeral 40 is a motor for making the feeding table 32 slidable in the y-axis direction.

Next, the turning device 18 for rotating the mandrel 16 will be described.

Reference numeral 42 is a support arm that supports the mandrel 16 rotatably around the mandrel shaft at both ends of the mandrel 16. The direction of rotation around the mandrel axis of the mandrel 16 is θ.

Reference numeral 44 is a motor for rotating the mandrel 16 in the θ direction.

Reference numeral 46 is a turntable which supports the support arm 42 at the center thereof so as to be rotatable. Further, hereinafter, the direction in which the support arm 42 pivots around the rotary table 46 is defined as φ.

Reference numeral 48 is a motor for rotating the support arm 42.

Reference numeral 50 is a control device. As shown in FIG. 3, the control device 50 includes a motor 36 for moving the feeding device main body 20 in the x-axis direction and a motor 4 for moving the feeding device main body 20 in the y-axis direction.
0, the motor 44 for rotating the mandrel 16 in the θ direction and the motor 48 for rotating the mandrel 16 in the φ direction. Then, this control method is numerical control by a program.

An example of a method of winding the filament F of the filament winder 10 having the above structure will be described.

In this winding method, the filament F is wound around the cylindrical mandrel 16.

First, the coordinate system and symbols used will be described.

On the x-axis, the position of the left end of the mandrel 16 is 0, and the position of the right end of the mandrel 16 is L. That is, the length of the mandrel 16 is L.

In the y-axis, the position of the feeding port 30 of the main body 12 at the left end of the mandrel 16 is set to 0, and the feeding port 30
Let M be the most protruding position.

Φ is a turning angle of the mandrel 16 with respect to the x-axis, and takes a value from -90 ° to 90 °.

Α represents an angle between the mandrel axis of the mandrel 16 and the winding position of the filament F, that is, a helical angle. The helical angle α is set to 45 ° in the winding of the filament F other than the winding start and the winding end.

Θ is the direction in which the mandrel 16 rotates about the mandrel axis.

The traveling direction of the filament F delivered from the delivery port 30 is always parallel to the y-axis.

The winding state of the filament F is shown in FIGS.
It will be described based on 1. 8 is a graph showing the relationship between the x direction and the y direction, and FIG. 9 is a graph showing the relationship between the x direction and the helical angle α and the mandrel turning angle φ.

First, the state in which the filament F is spirally wound from the left end portion to the right end portion of the mandrel 16 will be described.

The delivery port 30 is set to the position (x, y) = (0, 0), and the turning angle of the mandrel 16 is set to φ = 0 °. The end of the filament F is fixed to the left end of the mandrel 16. The helical angle α in this case is 90 °.
Then, the mandrel 16 is rotated. Delivery port 30
Moves in the plus direction of the x-axis and the y-axis. The turning angle φ of the mandrel 16 is also rotated in the positive direction (see FIG. 10).

The feeding port 30 has (x, y) = (L / 1
At the position of 6, M / 2), φ = 30 °. The helical angle α in this case is 60 ° (see FIGS. 4 and 1).
1).

The feeding port 30 has (x, y) = (L / 8,
At the position M), φ = 45 °. The helical angle α in this case is 45 ° (see FIG. 12).

With the mandrel 16 having the turning angle φ = 45 ° and the helical angle α = 45 °, the feeding port 30 is moved in the plus direction on the x-axis and in the minus direction on the y-axis.
From (x, y) = (L / 8, M) to (x, y) = (7L /
(8, −M), and the filament F is spirally wound around the mandrel 16 at a specific helical angle α0 (see FIGS. 5, 12, and 13).

The feeding port 30 has (x, y) = (7L / 8,
In -M), φ = 45 ° α = 45 °. Then, the feeding port 30 is again moved in the plus direction of the x axis and the y axis. Further, the turning angle φ of the mandrel 16 is rotated in the negative direction (see FIGS. 6 and 13).

The delivery port 30 has (x, y) = (15 L /
Φ = 30 ° at the position of (16, −M / 2). The helical angle α in this case is 60 ° (see FIG. 14).

At the position where the feeding port 30 is (x, y) = (L, 0), φ = 0 °. The helical angle α in this case is 90 ° (see FIG. 15).

As a result, the filament F is spirally wound from the left end to the right end of the mandrel 16. Further, since the traveling direction of the filament F and the helical angle α match, the filament F does not bend at the delivery port 30.

On the contrary, the state in which the filament F is spirally wound from the right end portion to the left end portion of the mandrel 16 will be described.

The feeding port 30 is set to (x, y) = (L, 0),
The mandrel 16 is rotated in the θ direction from the state of φ = 0 ° and the helical angle α = 90 °. The feeding port 30 has an x-axis,
Move in the negative direction of the y-axis. The turning angle φ of the mandrel 16 is also rotated in the negative direction (see FIG. 16).

The feeding port 30 has (x, y) = (15 L /
At the position of 16, M / 2), φ = −30 °. The helical angle α in this case is 120 ° (Fig. 1
7).

The feeding port 30 has (x, y) = (7 L /
At the position (8, M), φ = −45 °. The helical angle α in this case is 135 ° (see FIGS. 7 and 1).
8).

Turning angle φ of mandrel 16 = −45 °,
With the helical angle α = 135 °, the feeding port 30 is moved in the negative direction on the x-axis and in the negative direction on the y-axis.
From (x, y) = (7L / 8, M) to (x, y) = (L /
(8, −M), and the filament F is spirally wound around the mandrel 16 at a specific helical angle α0 (see FIGS. 18 and 19).

The feeding port 30 has (x, y) = (L / 8,-
In M), φ = −45 ° α = 135 °. And
The feeding port 30 is moved again in the minus direction of the x axis and the plus direction of the y axis. Also, the turning angle φ of the mandrel 16
Is rotated in the positive direction (see FIG. 19).

The feeding port 30 has (x, y) = (L / 1
At the position of 6, -M / 2), φ = -30 °. The helical angle α in this case is 120 ° (see FIG. 20).

At the position where the feeding port 30 is (x, y) = (0, 0), φ = 0 °. The helical angle α in this case is 90 ° (see FIG. 21).

As a result, the filament F is spirally wound from the right end portion to the left end portion of the mandrel 16. Even in this state, the distance between the delivery port 30 of the main body 20 and the mandrel 16 is constant, and the helical angle α and the traveling direction of the filament F delivered from the delivery port 30 are the same. F does not bend at the tip of the delivery port 30.

As described above, in the filament winder 10 of this embodiment, the helical angle α and the feeding port 30 are constantly maintained.
Since the advancing directions of the filaments F fed from the same are the same, the filaments F do not bend at the tip of the feeding port 30, and thus the filaments F do not break.

The filament F shown in the above embodiment is used.
The winding method of is an example, and by changing the numerical value to be numerically controlled according to the length, thickness, and shape of the mandrel 16, the helical angle α and the advancing direction of the filament F from the payout opening 30 are always matched. You can do this.

[0058]

As described above, in the filament winder of the present invention, since the helical angle and the feeding direction of the filament fed from the feeding device main body are the same,
The filament does not bend at the tip of the main body of the feeding device, so that the filament does not break. Further, since there is no change in the angle of the filament feeding direction during winding, the filament can be wound around the mandrel with a constant tension without a change in tension, so that a molded product having stable strength can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a filament winder of this embodiment.

FIG. 2 is a plan view of a filament winder.

FIG. 3 is a block diagram of a filament winder.

FIG. 4 is a plan view showing a state in which a filament is about to be wound on the mandrel.

FIG. 5 is a plan view showing a state in which a filament is wound up to a central portion of a mandrel.

FIG. 6 is a plan view showing a state where the filament is wound up to the right end of the mandrel.

FIG. 7 is a plan view of a state in which the filament is about to be wound from the right end portion to the left end portion of the mandrel.

FIG. 8 is a graph showing the relationship between the x direction and the y direction.

FIG. 9 is a graph showing the relationship between the x direction and the helical angle α and the mandrel turning angle φ.

FIG. 10 is a schematic diagram of a mandrel when α = 90 ° and φ = 0 °.

FIG. 11 is a schematic diagram of a mandrel in a state of α = 60 ° and φ = 30 °.

FIG. 12 is a schematic view of the mandrel in the state of α = 45 ° and φ = 45 °, in which the filament is located at the left end portion.

FIG. 13 is a schematic diagram of the mandrel in a state of α = 45 ° and φ = 45 °, in which the filament is wound up to the right end.

FIG. 14 is a schematic view of a mandrel with α = 60 ° and φ = 30 °.

FIG. 15 is a schematic view of a mandrel in a state of α = 90 ° and φ = 0 °.

FIG. 16 is a schematic diagram of a mandrel in a state of α = 90 ° and φ = 0 °.

FIG. 17 is a schematic view of the mandrel in the state of α = 120 ° and φ = −30 °.

FIG. 18 is a schematic diagram of the mandrel in a state of α = 135 ° and φ = −45 °, in which the filament is located at the right end portion.

FIG. 19 is a schematic view of a mandrel with α = 135 ° and φ = −45 °, in a state in which the filament is located at the left end portion.

FIG. 20 is a schematic view of a mandrel with α = 120 ° and φ = −30 °.

FIG. 21 is a schematic diagram of a mandrel in a state of α = 90 ° and φ = 0 °.

FIG. 22 is a plan view of a conventional filament winder.

[Explanation of symbols]

 10 ...... Filament winder 12 ...... Mounting table 14 ...... Feeding device 16 ...... Mandrel 18 ...... Turning device 20 ...... Main body 22 ...... Winding device 24 ...... Resin impregnation device 26 ...... Roller 28 ...... Roller 30 ...... Feeding Mouth 32 ...... Feeding table 34 ...... Rail 36 ...... Motor 38 ...... Rail 40 ...... Motor 42 ...... Support arm 44 ...... Motor 46 ...... Rotation table 48 ...... Motor 50 ...... Control device

Claims (1)

[Claims] 1. A filament feeding device is provided in front of the main body.
And rotate the mandrel about the mandrel axis.
By spiraling the filament on the mandrel
Filament wound around a filament stack
A winder, wherein the feeding device body is attached to the mandrel with a filament
The y-axis direction, which is the feeding direction of the
Each of the mandrels is movably provided in the intersecting x-axis direction, and the mandrel is composed of the x-axis and the y-axis.
It is provided so as to be rotatable on a flat surface and extends along the y-axis direction from the main body of the feeding device to the mandrel.
Angle between the mandrel axis and the filament drawn out
Degree is the winding angle of the filament with respect to the mandrel
X of the mandrel so that the helical angle is
Revolving movement on the y-plane and the x-axis direction of the feeding device body
A filament winder, characterized in that a control device for controlling the movement operation in the y-axis direction is provided.