JPH0727831U - Filament winding molding equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] A filament winding molding apparatus in which a mandrel is rotated and resin-impregnated reinforcing fibers are wound around the mandrel, the fibers being fed by a fiber passing through a feed eye attached to the winding apparatus. It provides the eye with a low load from the fibers. [Structure] A fiber fixing guide 8, a fiber moving guide 9, and a winding device 2 having a feed eye 3 are arranged in this order from a fiber feeding portion toward a mandrel 1, and the fibers before and after the feed eye 3 are arranged. A device that controls each operation of the fiber movement guide 9 and the feed eye 3 so that the bending angle θ of the fiber is as small as possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filament winding molding device.

[0002]

[Prior art]

 Conventionally, there are roughly two types of filament winding molding methods. One is to rotate the mandrel and wind the resin-impregnated fiber around it, and the other is to fix the mandrel and wind the resin-impregnated fiber while rotating it. By the way, the molding method targeted by the molding apparatus of the present invention is the former method of rotating the mandrel.

Conventionally, a molding apparatus employed in a method of rotating a mandrel has a rotatable mandrel and a fiber feeding source, and further, a fiber fixing guide is provided from the fiber feeding source toward the mandrel. In addition, a winding device provided with a feed eye and a winding device is generally provided in this order.

Further, as the fiber used for this, a continuous reinforcing fiber impregnated with a matrix resin such as an unsaturated polyester resin is usually used, and the fiber is wound around a bobbin and is used as a fiber feeding source. That is, as shown in FIG. 3, while sequentially rewinding the fiber b from the fiber supply source a, the fiber b is passed through the feed guide e of the winding device d via the fixed guide c.

In general, the feed eye e of the winding device d can wind the fibers around a rotating mandrel f with a predetermined winding condition such as a winding angle and a pitch in a state where a plurality of fibers b are aligned. Thus, it reciprocates along the axis of the mandrel f.

[0006]

[Problems to be solved by the present invention]

 However, as is clear from FIG. 3, the fiber b often bends greatly at the feed eye e between the fixed guide c and the mandrel f during the winding of the fiber. Therefore, a heavy load is applied to the feed eye e and further to the entire winding device d. Therefore, as a measure against such a load, a method of increasing the rigidity of the winding device so that the feed eye e and the winding device d can endure, and when a robot is used for the winding device, a robot having a large transportable weight is used. There is a method of adopting, a method of reducing the tension of the fiber b, a method of reducing the number of fibers wound at the same time, and the like.

However, the equipment becomes larger as the opposing force to the load increases, and if the tension of the fiber is excessively lowered, the winding quality is likely to be adversely affected, and this also has a limit. The present invention has been made for the purpose of solving the above-mentioned problems of the prior art, and providing a filament winding apparatus which does not require enlargement of equipment and reduction of fiber tension.

[0008]

[Means for Solving the Problems]

 The present invention relates to a "filament winding molding device, which has a rotatable mandrel and a resin-impregnated fiber feeding part, and from the fiber feeding part toward the mandrel, a fiber fixing guide, a fiber A moving device and a winding device with a feed eye are installed in this order, and each operation of the fiber moving guide and the feed eye is controlled so that the bending angle of the fiber before and after the feed eye is as small as possible. The present invention is based on a "filament winding molding device characterized by the above-mentioned procedure".

That is, in the conventional filament winding molding apparatus, a moving guide is simply added between the fixed guide and the feed eye, and the mandrel is wound around by the controlled operation of the feed eye and the moving guide. The essence is to make the bending angle of the fiber before and after the feed eye as small as possible to reduce the load on the feed eye.

[0010]

The filament winding molding apparatus of the present invention is provided with a moving guide in front of the feed eye, and by the controlled operation with the feed eye, the bending angle before and after the feed eye of the fiber wound around the mandrel is minimized. As a result, the load applied to the feed eye by the passing fibers can be reduced.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view schematically showing an example of a filament winding molding apparatus of the present invention, and FIG. 2 shows various operations of a feeding eye when feeding a fiber to a mandrel. FIG.

In FIGS. 1 and 2, 1 is a mandrel, which is adapted to rotate in the direction of the arrow. Reference numeral 2 is a winding device having a feed eye 3 at its tip. The winding device 2 is a work robot, which receives an instruction from the control device according to a predetermined program incorporated in the control device 4, and is indicated by an arrow 5 The robot arm 6 is operated while reciprocating in the direction of. The feed eye 3 not only performs a movement controlled by the movement of the robot arm 6, but also performs a more complicated movement itself based on an instruction from the control device 4.

That is, as shown in FIG. 2, forward and backward movements in the X-axis direction along the axial direction of the rotation axis of the mandrel 1, reciprocating movements in the Z-axis direction that move close to and away from the mandrel 1, and in the radial direction of the mandrel 1. A three-dimensional operation consisting of a reciprocating movement along the Y-axis, along with a reciprocating rotation in the directions indicated by V1 and V2 on the horizontal plane including the rotation axis of the mandrel 1, and a direction of feeding the fiber 7 is indicated by U with the rotation axis. Performs reciprocating rotation. Incidentally, 8 is a fixed guide.

And, except for the contents of the program incorporated in the control device 4, the device is a conventionally known device up to this point. Although the control device 4 is independent of the winding device 2 in the present embodiment, it may be attached to the winding device 2.

Reference numeral 9 denotes a movement guide, which is a feature of the present invention. The moving guide 9 is provided with an annular or hook-shaped guide made of ceramic, metal or the like, and a moving device that operates the guide in synchronization with the movement of the feed eye 3. The operation of the movement guide 9 is performed in synchronization with the movement of the feed eye 3 so that the bending angle θ of the fiber 7 before and after the feed eye 3 is as small as possible. The control is performed based on an instruction from the control device 4.

That is, the “bending angle of the fiber 7 before and after the feed eye 3” in the present invention refers to the angle θ in FIG. If this angle is made as small as possible, the load on the feed eye 3 is reduced. Ideally, if the angle θ becomes 0, that is, if it becomes a straight line, the load will almost disappear, so that the fiber 7 passing through the feed eye 3 is a straight line or a straightness close to that, a movement guide 9, a feed eye. It is preferable to control the operation of 3.

The type of operation is mainly reciprocal movement in the directions of the arrows 5 and 10, but in response to the complicated operation of the feed eye 3 described above, the movement guide 9 may be used in some cases. Depending on the situation, two-dimensional or three-dimensional movement may be necessary.

[0019]

[Effect of device]

 The filament winding molding apparatus of the present invention is provided with a moving guide in front of the feed eye so that the bending angle of the fiber wound around the mandrel before and after the feed eye can be minimized by the controlled movement with the feed eye. As a result, the load on the feed eye caused by the passing fibers can be reduced.

Therefore, there is no need to increase the rigidity of the winding device more than necessary, to increase the carrying capacity of the robot itself, or to reduce the tension of the fiber, so the equipment cost is low. It is possible to manufacture high quality products.

[Brief description of drawings]

1 is a plan view schematically showing an example of a filament winding molding apparatus of the present invention.

FIG. 2 is a perspective view for explaining various operations of the feed eye when feeding the fiber to the mandrel in the above.

FIG. 3 is a plan view schematically showing an example of a conventional filament winding molding apparatus.

[Explanation of symbols]

 1 Mandrel 2 Winding device 3 Feed eye 4 Control device 5, 10 Arrow 6 Robot arm 7 Fiber 8 Fixed guide 9 Moving guide

Claims (1)

[Scope of utility model registration request] 1. A filament winding molding apparatus comprising a rotatable mandrel and a resin-impregnated fiber feeding portion, and a fiber fixing guide, a fiber feeding portion, and a fiber feeding portion. Travel guide,
A winding device having a feed eye is provided in this order, and each operation of the fiber movement guide and the feed eye is controlled so that the bending angle of the fiber before and after the feed eye becomes as small as possible. Filament winding molding equipment.