JPH074876B2 - Filament winding molding equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a filament winding molding apparatus for fiber reinforced synthetic resin (hereinafter referred to as FRP).

(Prior Art) Mandrel replacement in a conventional filament winding molding apparatus for FRP requires a lot of mandrel movement work, which requires time and manpower.

That is, when the winding of the resin-impregnated filament impregnated with the thermosetting resin is finished on the mandrel, first, the wound mandrel is detached from the attachment tool of the winding shaft and transferred to the mandrel accommodating base by hand or by using the mandrel attaching / detaching device.
Then, an empty mandrel prepared on another table is transferred to the winding device and attached to the winding shaft via the attachment. Further, in the case of mandrel replacement in a filament winding molding apparatus having a plurality of winding shafts, the above work must be carried out one by one. Even if the mandrel attachment / detachment device is used, it is necessary to maintain a sufficient distance between the take-up shafts so as not to cause any trouble when inserting the device between the take-up shafts. For this reason, although there are differences depending on the form of the product, even if a plurality of winding shafts are used, the number of winding stages is limited to two or three, and the effect of multiple winding cannot be sufficiently exhibited.

In addition, a mandrel carrier is often used to carry an empty mandrel to a filament winding molding device and carry the wound mandrel to the next step. The movement of the mandrels between the mandrel carrier and the mandrel accommodating table is one by one, either manually or by a mandrel exchanging device, and it is not rational in reality.

As an automatic device for rationalizing these operations, for example, Japanese Patent Laid-Open No. 60-145827 discloses a mandrel preparation device, a winding device, a curing furnace, a post-processing device, a mandrel drawing device, and the like. Is automatically transported,
In the meantime, a filament winding device for carrying out each operation is described. However, this device has the problems that it is difficult to harmonize the processing time among the devices constituting the device, that the device becomes large in scale, the device cost is high, and it is difficult to turn around quickly.

(Problems to be Solved by the Invention) An object of the present invention is to solve the above-mentioned problems, to replace a plurality of mandrels easily at the same time with high productivity, and to be easy to use and to reduce the device cost. It is an object of the present invention to provide an inexpensive, small-turning, filament winding molding device.

Further, it is another object of the present invention to provide a filament winding molding device that can easily carry a wound mandrel and an empty mandrel.

(Means for Solving the Problems) In order to achieve the above object, the present invention is, as the first invention, (a) a plurality of winding shafts for attaching and rotating a mandrel are attached. (B) the winding arm, and a winding unit having a winding arm and a rotating means for rotating the winding arm around an axis parallel to the winding axis at a lower end thereof. Is provided on one side with
A traverse part for traversing the synthetic resin-impregnated filament to be fed to the mandrel, and (c) a number which is provided on the other side of the winding arm and is at least twice the number of the plurality of winding shafts. Of the mandrel, and an accommodating portion having mandrel accommodating means for arranging and supporting the mandrels with their axes aligned in parallel with the winding shaft, and (d) at least the winding shaft and the mandrel housing base. A filament winding molding device comprising one of the moving means for moving one in a direction orthogonal to the axis of the mandrel of the mandrel housing base, and, as a second invention, the mandrel housing portion, wherein the mandrel housing portion is the mandrel housing portion. The filament winding molding apparatus according to the first aspect of the present invention is provided with a traversing unit that moves in the axial direction.

(Function) When the filament is fed to the traverse portion, the traverse portion traverses the fed filament in the axial direction of the mandrel of the winding portion while impregnating the fed filament with the synthetic resin.

When the winding operation with the mandrel is completed, the winding arm that pivotally supports the mandrel rotates about the axis of the lower end in the direction of the mandrel accommodating base provided in the direction opposite to the traverse portion.

The mandrel accommodating table accommodates at least two wound and wound mandrels, and then moves by a moving means in a direction perpendicular to the axial direction of the mandrel by the axial distance between the adjacent mandrels.

By this movement, the wound mandrel is separated from the winding shaft, and the empty mandrel is moved to a position coinciding with the axis of the winding shaft, so that the winding mandrel can grip the empty mandrel again.

The gripped empty mandrel is moved to the winding position by the rotation of the winding arm.

(Embodiment) An embodiment of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a plan view of an embodiment of the filament winding molding apparatus according to the present invention.

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

In the filament winding molding apparatus according to the first aspect of the invention, the traverse section 2 is provided on one side of the winding arm 4 of the winding section 1 and the accommodating section 3 is provided on the opposite side of the winding arm 4, and the traverse section 2 is moved to the accommodating section 3. A support base 16 as a means is provided.

Of these, the winding unit 1 performs filament winding. That is, the winding unit 1 rotates the mandrel 6 attached to each of the plurality of winding shafts 5 to wind the resin-impregnated filament 7 around the mandrel 6, and between the housing unit 3 and the winding unit 1.
In order to replace the wound mandrel 6 with the empty mandrel 8, the shaft 9 parallel to the winding shaft 5 and located at the lower end of the winding arm 4 is used as the center of rotation, and the winding arm 4 is rotated. , Is rotated by the rotating means in the drive unit 19 toward the mandrel housing 10.

The winding arm 4 has a plurality of horizontally arranged winding shafts 5 arranged in parallel with each other.

The traverse section 2 traverses the resin-impregnated filament 7 wound around the mandrel 6. In addition, a resin bath 13 for impregnating the filament 12 with a thermosetting resin,
It may be provided at the traverse portion 2 or at another place.

The accommodating portion 3 temporarily accommodates the empty mandrel and the wound mandrel. That is, the mandrel housing base 10 of the housing portion 3 houses the mandrel 6 on which the resin-impregnated filament 7 has been wound from the winding shaft 5, and then the winding shaft 5
The empty mandrel 8 to be attached to is stored in advance.

Of these, the winding arm 4 has at least two functions. More specifically, the first is to attach the mandrel 6 to the take-up shaft 5 almost horizontally with the attachment tool 11, rotate the mandrel 6, and wind the resin-impregnated filament 7. That is, filament winding molding is executed. The fixture 11 is a known one, and is preferably of a type that can hold the mandrel 6 automatically or with one touch.

Secondly, with the shaft 9 as the central axis of rotation, the mandrel housing 10
Is to rotate towards. The movement range is from the winding position of the mandrel to the vicinity of the position where the axis of the winding shaft 5 and the axis of the mandrel 8 of the mandrel housing 10 overlap. By this action, the take-up shaft 5 is moved to a position convenient for exchanging the mandrels 6 and 8, or a position near that position. A known means, for example, a means using a rotary cylinder, a motor, or the like as a drive source can be used as the rotating means for rotationally moving.

On the other hand, the accommodating portion 3 is slightly larger than the outer diameter of the mandrel 6 on the mandrel accommodating table 10 in order to accommodate at least twice as many mandrels as the number of the winding shafts 5. The number of semi-circular recesses having the radius is provided. The reason for requiring such a quantity is that the mandrel 6 that has been wound up and the empty mandrel 8 must be accommodated at the same time when the mandrel is replaced. The shape of the recess may be any shape or structure as long as it can prevent the mandrel from rolling.

On the mandrel accommodating base 10, the empty mandrels 8 and the mandrels that have been wound up and accommodated are aligned in the same plane with the axes of these mandrels parallel to the take-up axis 5 in a direction perpendicular to the axis. Store them side by side as you would. The above-mentioned plane for aligning the axes is preferably horizontal or a plane close to horizontal. This is because it is convenient to replace and house the mandrels 6 and 8. It is preferable that the mandrel 6 that has been wound up and the empty mandrel 8 are accommodated in alternating positions. This is because the moving distance of the mandrel housing 10 or the winding shaft 5, which will be described later, can be shorter than that of other arrangement types. As a concrete accommodating means, a well-known device such as a simple table, a stopper that operates automatically or by one touch may be used.

The mandrel housing 10 is usually placed near the axis 9 of the winding arm 4.

As described above, the mandrel accommodating base 10 is constructed and arranged in order to facilitate the transfer of the mandrels 6 and 8 to and from the winding shaft 5.

By the way, the wound mandrel 6 and the empty mandrel 8 cannot be accommodated in the overlapping position at the same time. Therefore, the mandrel cannot be replaced only by this rotating means. So, the mandrel housing
A support base 16 (driving section is not shown), which is a moving means, is provided at 10. Then, by moving the mandrel accommodating base by this moving means, the accommodating position of the winding completion mandrel 6 of the mandrel accommodating base 10 and the empty mandrel 8 of the empty winding shaft 5 are attached via the fixture 11. Switch to the mounting position.

Note that this switching is performed by moving the mandrel accommodating table by the moving means, but the switching can also be performed by moving the winding shaft (including the fixture) by the moving means.

Well-known moving means can be used as means for moving the take-up shaft (including the fixture). For example, A. The take-up shaft is supported slidably in the longitudinal direction of the take-up arm. Moving means consisting of a sliding part and a cylinder for moving the take-up shaft in the sliding direction, B. A slide for supporting the take-up arm to which the take-up shaft is fixed so that the take-up arm can expand and contract in the longitudinal direction of the arm. A moving part and a moving means consisting of a cylinder for expanding and contracting the winding arm, C. a sliding part for movably supporting the support base of the winding arm to the mandrel storage base side, and a cylinder for moving the support base. Means of transportation can be given. By this moving means, the winding shaft can be moved to switch to the above. The moving means is not limited to the above, and the cylinder may be replaced with a rack and a pinion, and any means can be used as long as it can move the winding shaft.

Next, the replacement of the mandrel in the above switching will be described in more detail.

To replace the mandrels 6 and 8, the mandrel 6 that has been wound up is moved to the vacant storage position 14 of the mandrel storage base 10 as described above. Next, the empty mandrel 8
In order to attach the winding shaft 5 to the winding shaft 5, a moving means is required to match the position where the empty mandrel 8 is housed with the position of the winding shaft 5. In FIG. 1 and FIG. 2, this means is provided as the support base 16 in the storage part 3 to provide the mandrel storage base.
Moving 10

The moving direction is the direction in which the mandrels 8 are arranged, that is, the direction perpendicular to the axis of the mandrel 8 (the horizontal direction in the drawing). The moving distance is at least equal to the distance S between the axes of the adjacent mandrels. here,
The distance S between the adjacent mandrels refers to the smallest distance between the mandrels adjacent to each other when the largest number of mandrels are accommodated. The reason for "at least" is that even if the number of winding shafts 5 is plural, the mandrel 6 and the empty mandrel 8 that have been wound are alternately accommodated at equal intervals. In this case, it is sufficient to move the distance S between the shaft centers of the two, but for some reason, the mandrels of the both are collectively housed in different positions, or the distance between the shaft centers is equal. If not, the distance required for exchanging the mandrels may not be sufficient as the distance S between the axes of the adjacent mandrels. In such a case, the required moving distance is a value of S or more.

However, the moving distance when the moving means is provided on both the winding shaft and the mandrel accommodating base means the relative moving distance between the winding shaft and the mandrel accommodating base.

Further, the mandrel housing base 10 is mounted on a support base 16 to which wheels 15 are attached. By driving the wheels, the mandrel housing 10 can easily move at least the distance S between the axes of the mandrels housed therein. 17 is the floor surface.

In the filament winding molding apparatus according to the second aspect of the present invention, the accommodation section 3 moves the mandrel accommodation table 10 separately from the moving means 16 that moves the mandrel accommodation table 10 of the filament winding molding apparatus according to the first invention. The traverse means 18 (driving section is omitted) is provided.

In the mandrel housing table 10, the mandrel 6 that has been wound and has been wound is transferred to the next step, and the mandrel 8 that is empty is moved.
After mounting on the take-up spindle 5, the next empty mandrel 8
Need to be accommodated. Therefore, in order to rationally perform these operations, in the filament winding molding apparatus according to the second aspect of the present invention, a traverse means 18 for moving the mandrel housing base 10 is newly provided in the housing portion 3 to provide a mandrel carrying function. This is the accommodation section 3 provided. As specific moving means, attach wheels, slide surfaces, etc.,
Appropriate known driving force may be applied.

When the transportation distance is short, the means 16 for moving the mandrel housing 10 of the filament winding molding apparatus according to the first invention may be additionally provided with the function as the above-mentioned transportation means.

Reference numeral 19 denotes a drive unit that houses a drive unit that drives the winding shaft 5 and a rotating unit that rotates the winding arm 4.

(Effects of the Invention) The FRP filament winding molding apparatus according to the present invention is provided with: a. A winding arm having a winding arm having a plurality of winding shafts attached thereto and a rotating means for rotating the winding arm. Section, b. A traverse section for traversing the filament impregnated with the synthetic resin, c. An accommodating section having accommodating means for accommodating at least twice the number of winding shafts, and d. A winding shaft and Since a means for moving at least one of the mandrel accommodating bases is provided, it is possible to move the part required for multiple mandrel replacement to the required position, and use manpower or a special mandrel replacement device. The mandrel can be easily replaced without doing. Moreover, since no special device is required, the cost is low. In particular, when a large number of mandrels are wound up at once and the mandrels are replaced, a great effect is obtained.

Further, when the mandrel accommodating table is provided with a moving means having a carrying function, the mandrel which has been wound up and the mandrel can be carried to the next step, and the empty mandrel can be carried from another place. Therefore, the mandrel accommodating portion can be utilized by utilizing the free time during winding, resulting in cost reduction.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the filament winding molding apparatus according to the present invention. FIG. 2 is a sectional view taken along the line AA ′ of FIG. 1: Winding part, 2: Traverse part 3: Storage part, 4: Winding arm 5: Winding shaft 6: Mandrel attached to the winding shaft 5 (empty mandrel) 7: Resin impregnated filament 8: Mandrel housing base Mandrel accommodated in 9: Shaft, 10: Mandrel accommodating base 11: Fixture, 12: Filament 13: Resin bath 14: Empty accommodating position 15: Wheels, 16: Support stand 17: Floor, 18: Wheels (traversing means) ) 19: Drive S: Distance between the axes of adjacent mandrels on the mandrel housing

Claims (2)

[Claims] (A) A winding arm having a plurality of winding shafts attached to rotate a mandrel, and a shaft parallel to the winding shaft at the lower end of the winding arm. And (b) is provided on one side with the winding arm in between, and
A traverse part for traversing the synthetic resin-impregnated filament to be fed to the mandrel, and (c) a number which is provided on the other side of the winding arm and is at least twice the number of the plurality of winding shafts. Of the mandrel, and an accommodating portion having mandrel accommodating means for arranging and supporting the mandrels with their axes aligned in parallel with the winding shaft, and (d) at least the winding shaft and the mandrel housing base. A filament winding molding apparatus comprising: a moving unit that moves one of the mandrel and the mandrel in a direction orthogonal to the axis of the mandrel. 2. The filament winding molding apparatus according to claim 1, wherein the mandrel accommodating portion has traversing means for moving the mandrel accommodating portion in the axial direction of the mandrel.