JP3228442B2 - Filament winding forming apparatus and method of using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fiber reinforced resin (FR)
The present invention relates to a filament winding forming apparatus for winding a yarn impregnated with a resin for P) and a method of using the same, and in particular, a mandrel for winding a yarn impregnated with a resin,
The present invention relates to a filament winding forming apparatus having an improved operation of replacing a full mandrel with an empty mandrel, and a method of using the same.

[0002]

2. Description of the Related Art In a conventional filament winding molding apparatus, the operation (yarn switching) for switching a yarn from a fully loaded mandrel to an empty mandrel has largely relied on manual labor. For example, after completing the winding of the yarn on the mandrel, the yarn connected to the mandrel is cut between the mandrel and the yarn traverse means (manually), and the cut yarn slips from the traverse means to the creel side. The mandrel whose winding has been completed is removed from the chuck, and an empty mandrel is chucked (usually, automatically) to traverse the cut yarn. He removed some of the means and tied it to a new, empty mandrel (manually), after which the next winding started.

[0003]

However, yarn switching in such a conventional filament winding molding apparatus has the following problems. (1) First, when the number of mandrels is large, the manual preparation operation requires a long time, and the operation rate of the apparatus is reduced accordingly. (2) Further, when the yarn is stuck to a new empty mandrel, the mandrel may be rotated, and there is a possibility that an operation which is not preferable in terms of safety may be performed. (3) Further, since the yarn impregnated with the resin is directly handled, there is a problem that hands and the like become dirty.

The present invention pays attention to such problems of the conventional apparatus and operation, and automatically transfers the yarn connected to the completed mandrel to a new empty mandrel without relying on humans. And a filament winding forming apparatus capable of improving the operation rate and being extremely safe, which can be substantially simultaneously transferred in a short time even when the number of mandrels is large, and It is intended to provide a method of using the same.

[0005]

According to the present invention, there is provided a filament winding forming apparatus comprising: a creel stand for holding a plurality of bobbins; and a plurality of filaments supplied from the bobbin of the creel stand. A resin-impregnated portion for impregnating the synthetic yarn into the synthetic resin, a mandrel for winding the synthetic resin-impregnated yarn, a pair of chucking members for detachably holding both ends of the mandrel, and the pair of chucking. A bearing for rotatably supporting each of the members, and a winding section of the thread having a driving unit for driving at least one chucking member of the pair of chucking members, and an axial direction of the mandrel, Filament winding molding with a traverse section for traversing a yarn impregnated with a synthetic resin (A) a waist drum for temporarily winding the thread is provided between one of the chucking members of the pair of chucking members and the bearing; and (b) the waist drum and the waist. Providing a gap between the drums, and (c) cutting means near the waist drum for cutting a yarn temporarily wound around the waist drum and extending between the waist drum and the mandrel. It is provided so as to be able to enter and exit the gap.

In the filament winding molding apparatus, it is preferable that a driving means for driving the waist drum is provided separately from a driving means for driving the chucking member.

Further, the method of using the filament winding molding apparatus according to the present invention is preferably such that after the yarn from the resin impregnated portion is fully wound around the mandrel, the yarn on the full winding mandrel is traversed by the traverse means. Is guided on the waist drum, and the yarn is wound on the waist drum, and then the yarn extending over the full mandrel and the waist drum is cut by the cutting means. The yarn from the impregnated portion is transferred onto the waist drum, the full mandrel is doffed from the pair of chucking members, and then an empty mandrel is donned to the pair of chucking members, and the driving unit is driven. While traversing the traverse means located on the waist drum in the direction of the empty mandrel. The Rukoto comprises a method characterized by multiplying the yarn the yarn on the waist drum to the end of the empty mandrel.

[0008]

In such a filament winding molding apparatus, the yarn from the resin-impregnated portion on the fully-wound mandrel which is fully wound is temporarily guided to the waist drum by the traverse means. After being placed on the drum and the yarn between the full mandrel and the waist drum is cut by the cutting means, the full mandrel is doffed from the chucking member. Then, after the new empty mandrel is chucked, the traversing means located on the waist drum is traversed in the direction of the empty mandrel while rotating and driving the empty mandrel, so that the resin is impregnated on the empty mandrel. The yarn is threaded.

These series of operations can be performed automatically without manual operation, and the automatic operation enables simultaneous operation even when the number of mandrels is large. Thread switching can be performed efficiently in a short time, and there is no problem in work safety because no manpower is required. Also, the problem of dirty hands is eliminated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the filament winding forming apparatus of the present invention will be described below with reference to the drawings. 1 and 2 show a filament winding forming apparatus according to one embodiment of the present invention. A number of bobbins 2b are provided in the filament winding molding apparatus.
And a resin impregnating unit as a resin impregnating part for impregnating a yarn 1 formed by bundling a plurality of filaments supplied from a bobbin 2b of the creel stand 2a with a synthetic resin. 3, and a filament winding device 6 for winding a yarn 4 impregnated with a synthetic resin around a mandrel.

Each yarn 1 is composed of a bundle of a plurality of filaments and functions as a reinforcing material for a cylindrical plastic member.
The filament used in the fiber reinforced plastic is not particularly limited, and for example, a carbon filament, a glass filament, an aramid filament, a metal filament and the like can be used.

The creel device 2 includes a creel stand 2a
And a number of creels arranged in the creel stand 2a, and each bobbin 2b is mounted on each creel. The yarn 1 pulled out from each bobbin 2b is introduced into the resin impregnating device 3 while being controlled at a constant tension by a tension adjusting device (not shown) provided for each creel.

The resin impregnating device 3 horizontally holds a stand 3a, a resin bath 3b mounted on the stand 3a and containing a resin solution therein, and a plurality of yarns 1 provided on the inlet side of the resin bath 3b. Guide bar 3c that aligns at a predetermined pitch in the direction
A resin coating roll 3d for impregnating a resin solution into the yarn 1 rotatably provided on the resin bath 3b, and a resin coating roller 3d provided on the outlet side of the resin bath 3b so that the resin uniformly adheres to the yarn 1. And a squeeze bar 3e for scraping off excess resin. The impregnating resin is not particularly limited, and examples thereof include an epoxy resin, a phenol resin, and a polyester resin. Also, if necessary,
For curing the resin, a curing agent or a polymerization catalyst may be used.

FIGS. 1 and 2 show the filament winding device 6.
As shown in FIG. 3, a yarn winding device 7 as a yarn winding portion, a yarn traverse device 5 as a yarn traverse portion, and a mandrel holding device 8 are provided.

The yarn winding device 7 includes a pair of bases 7a,
It has a pair of arms 28a and 28b and a pair of mandrel support devices 27 and 29.

A support shaft 7b is rotatably supported on each base 7a via a pair of bearings 7c. The arms 28a and 28b each have a shaft 7 at the lower end.
b. A reversible rotation motor 31 and a speed reducer 33 are provided in each base 7a. The chain wheel attached to the output shaft of the reversible rotary motor 31 and the chain wheel attached to the input shaft of the speed reducer 33 are connected via a chain 31a. The gear 32 attached to the output shaft of the reduction gear 33 meshes with a sector gear 34 fixed to an end of the support shaft 7b.

The right arm 28a has a group of mandrel support devices 27, and the left arm 28b has a group of mandrel support devices 29 corresponding to the group of mandrel support devices 27. FIG. 4 shows a pair of mandrel support devices 27 and mandrel support devices 29.

In FIG. 4, the right mandrel support device 2
7 is a right air cylinder 38, a right piston drum 3
7, a bearing 27c, a right mandrel chucking spindle 42, a servomotor 43, an output shaft 27a, and a coupling 27b. The right air cylinder 38
It is fixed to the right arm 28a. In the right air cylinder 38, a piston drum 37 having a piston on a peripheral wall is provided so as to be slidable in the axial direction.
b. The servo motor 43 is provided on a right side wall of the right side piston drum 37. The output shaft 27a of the servo motor 43 projects into the hollow portion of the piston drum 37, and a coupling 27b is attached to the tip. A bearing 2 is provided on the left end side in the piston drum 37.
7c is provided. The outer race of the bearing 27c is fixed to the inner periphery of the piston drum 37, and the inner race is fixed on the mandrel chucking spindle 42. Mandrel chucking spindle 42
Is connected to the coupling 27b at the right end, and a projection 44 is provided at the left end.
4 is fitted into a concave portion 45 formed at one end.

On the other hand, the left mandrel support device 29 includes a left air cylinder 36, a left piston drum 35, a bearing 2
9c, a reversible rotary servomotor 29a, an output shaft 29b, a waist drum 39, a bearing 40, and a left mandrel chucking spindle 41. The left air cylinder 36 is fixed to the left arm 28b. In the left air cylinder 36, a piston drum 35 provided with a piston on a peripheral wall is provided so as to be slidable in the axial direction.
a and the right chamber 36b. The reversible rotary servomotor 29a is provided on the left side wall of the left piston drum 35. Output shaft 29 of reversible rotary servomotor 29a
b is projected through the hollow portion of the piston drum 35, and a waist drum 39 is attached to the tip. A bearing 29c is provided on the right end side in the piston drum 35. The outer race of the bearing 29c is fixed on the inner periphery of the piston drum 35, and the inner race is fixed on the output shaft 29b of the reversible rotary servomotor 29a. A bearing 40 is provided in the waist drum 39, an outer race of the bearing 40 is fixed to an inner periphery of the waist drum 39, and an inner race is fixed on a mandrel chucking spindle 41. A protrusion 44 is provided on the right end of the mandrel chucking spindle 41, and the protrusion 44 is fitted into a concave portion 45 formed at the other end of the mandrel 14. Further, a cutter 51 operated by an air cylinder 52 supported by a bar 51b is provided on the arm 28b near the waist drum 39.

In FIG. 4, a pair of arms 28a, 28
b a pair of mandrel support devices 2 arranged at the top of
7 and 29 are shown, but as shown in FIG. 3, the other mandrel support devices 27 and 29 also
8a and 28b.

Referring again to FIG. 3, the yarn traverse device 5
Will be described. The yarn traverse device 5 includes a yarn carriage stand 10 and the yarn carriage stand 10.
A plurality of yarn feeding units 13 arranged above, a mechanism for traversing the yarn carriage stand 10 in a direction parallel to the axes of the plurality of mandrels 14 mounted on the pair of arms 28a and 28b, and a yarn. A mechanism for guiding the carriage stand 10 in a direction orthogonal to the axis of the mandrel is provided.

The slide base 11 extends in a direction parallel to the axis of the mandrel 14, and a slide box 5b on which the thread carriage stand 10 is mounted is slidably provided on the slide base 11. I have. A mechanism for traversing the yarn carriage stand 10 is connected to a reversible rotary motor 15 provided under the floor, and an output shaft of the reversible rotary motor 15,
And a clutch (not shown) extending along the slide box 5b when the clutch is connected and the reversible motor 15 is rotated in one direction.
Is a reversible rotary motor 1 in one direction on a slide base 11.
When the box 5 is rotated in the reverse direction, the slide box 5b is slid on the slide base 11 in the reverse direction via slide shoes 5a provided at the bottom of the slide box 5b. A mechanism for guiding the yarn carriage stand 10 in a direction (forward and backward) perpendicular to the axis of the mandrel is provided on the upper surface of the slide box 5b and slidably supports the yarn carriage stand 10. 5d, a reversible rotary motor 12 provided in the slide box 5b, a gear fixed to the output shaft of the reversible rotary motor 12, a gear 5e fixed to the screw shaft, and a gear 5e and the motor 12 A chain 5f for connecting a gear fixed to the output shaft and a slide shoe (not shown) fixed to the bottom surface of the thread carriage stand 10 movably engaged with the screw shaft.

As shown in the figure, the yarn carriage stand 10 has a plurality of yarn feeding units 13 and a yarn collecting roller 5c. One of the yarn feeding units 13 is shown in an enlarged scale in FIG. The yarn feeding unit 13 includes a bracket 21 attached to the yarn carriage stand 10, a cylinder 23 having a bore 22 swingably supported in the bracket 21, and an outlet end of the cylinder 23. A pair of brackets 26 provided, a pair of thread guide rollers 24 and 25 rotatably provided between the pair of brackets 26, and a thread carriage stand 10.
A thread guide roller 20 on the inlet side of the bore 22 rotatably provided above, and a cylinder 23 provided with a reversible rotation motor and a torque transmission mechanism for the reversible rotation motor provided in the carriage stand 10 (not shown). And a mechanism for swinging.

Referring to FIG. 3 again, the mandrel holding device 8 will be described. The mandrel holding device 8 includes a movable base 48 provided on the floor so as to be slidable in a direction orthogonal to the axes of the plurality of mandrels 14 mounted on the pair of arms 28a and 28b, and an output shaft provided below the floor. An air cylinder 9 connected to a base 48 and a rail 49
a, a mandrel storage truck 8a having four wheels 50 running on the 49d, and mandrel holding means 47 comprising rollers arranged on both sides of the mandrel storage truck 8a.
And Mandrel holding means 4 composed of rollers
Numerals 7 are arranged at a predetermined pitch on both sides of the mandrel accommodation cart 8a. The mandrel receiving portions are formed between two rollers adjacent to each other, and the mandrel receiving portions formed on both sides of the mandrel accommodation cart 8a are formed at corresponding positions. The pitch of the mandrel receiving portions is set to a half of the pitch of the mandrel support devices 27 and 29 provided on the pair of arms 28a and 28b. A pair of rails 49
a and 49b are connected to the pair of rails 49 when the movable base 48 is at a predetermined position, and in this state, the mandrel accommodation cart 8a is moved to move the empty mandrel to the operating position shown in FIG. , Or a mandrel that has been fully wound up can be carried out from the position shown in FIG.

Further, in this embodiment, there is provided a tape traversing device 16 for sending out a tape to be wound onto a fully wound mandrel and traversing the tape. On the tape stand 17 of the tape traversing device 16, a plurality of tape feeding units 60 for feeding a tape are provided.
The tape sent out from is driven by the motor 15
The tape carriage stand 17 is slidably moved on the slide base 11 via a screw shaft and a clutch (not shown) provided at a lower portion of the slide base 11 so that the tape carriage stand 17 is traversed in a direction parallel to the axis of the full winding mandrel. It has become. The motor 19 is a motor for moving the tape carriage stand 17 in the front-rear direction, that is, the direction in which the tape feeding unit 60 approaches and separates from the mandrel.

Next, the operation of the apparatus of the above embodiment will be described together with the method of using the filament winding molding apparatus according to the present invention. Each yarn 1 is pulled out from each bobbin 2b and guided to the resin impregnating device 3. In each thread 1,
The resin is impregnated in the resin bath 3b, and the squeeze bar 3e stirs the resin so that the resin adheres uniformly and also scrapes the excess resin. Thereafter, the resin impregnated yarn 4 is bundled by the yarn guide roller 20 on the entrance side of the yarn carriage stand 10, and the bore 22 of the cylinder 23,
After passing through the pair of thread guide rollers 24 and 25, the mandrel 14 is wound around the mandrel 14 as the mandrel 14 rotates.

Both ends of the mandrel 14 are detachably supported by left and right mandrel chucking spindles 41 and 42, and the yarn wound around the mandrel 14 is traversed by the yarn traverse device 5. By traversing a predetermined number of times, a desired full-volume mandrel is formed.

The operation after full winding will be described with reference to FIG. When the filament winding is completed (that is, when the mandrel is fully wound), the yarn carriage stand 10 is moved toward the position facing the waist drum 39 while rotating the mandrel 14 (step S1). Then, the waist drum 39 starts to be rotated by the reversible rotation servomotor 29a (step S2). Eventually, the yarn carriage stand 10 reaches a position facing the waist drum 39, and as shown in FIG. 7, the yarn 4 is continuously wound on the waist drum 39 as it is (step S3).

When the yarn 4 is wound around the waist drum 39 several times, the movement of the yarn carriage stand 10 is stopped, and a V-shaped cutting edge 51a as shown in FIG.
8 is driven by an air cylinder 52 as shown in FIG. 8, and the thread 4 extending over the waist drum 39 and the mandrel 14 is connected to a chucking member (mandrel chucking spindle 41). It operates so as to cut at the gap position between the waist drum 39 (step S4). After a while, mandrel 14
And the rotation of the waist drum 39 is stopped (step S5). Then, it is determined whether or not to tap the full mandrel (step S6). If it is, taping is executed (step S7). If not, the doffing operation of the full mandrel is started (step S6).
8).

FIG. 1 shows the doffing operation of the full mandrel.
0 to FIG. As shown in FIG. 10, the pair of arms 28 (28 a, 28 b) are swung downward about the center 30 of the shaft 7 b as the rotation center as indicated by arrows, and the swing A part of the yarn 4 is unwound (step S8). In the figure, a full mandrel is indicated by a black circle, and an empty new mandrel is indicated by a white circle.

On the other hand, the empty mandrel is set at the standby position (not shown) at every other mandrel accommodation position on the mandrel accommodation cart 8a of the mandrel holding device 8 (step S21). The empty mandrel thus set is set at the front position of the pair of arms 28 as shown in FIG. 10 by carrying the mandrel accommodation cart 8a to the mandrel exchange position (the position shown in FIG. 3) (step). S22).

As shown in FIG. 11, when the pair of arms 28 is swung to the horizontal position, the swing of the arms is stopped (step S9). In this state, the compressed air is supplied to the left chamber 38b of the right air cylinder 38 and the left air cylinder 36.
Of the right piston drum 3
7 and the left piston drum 35 are respectively moved outward of the arm. By the operation of the two piston drums, the fully loaded mandrel supported at both ends by the mandrel chucking spindles 41 and 42 is released (removed) as shown in FIG. 12 (step S10). The released full mandrels are received at every other empty mandrel accommodation position prepared on the mandrel accommodation cart 8a of the mandrel holding device 8, and the doffing is completed (step S1).
1).

The operation of donning an empty mandrel will be described with reference to FIGS. FIG.
After completion of the doffing, the mandrel holding cart 8a of the mandrel holding device 8 is moved by driving by the air cylinder 9 so that the empty mandrel adjacent to the position where the full mandrel has hitherto comes to come. The position is shifted by one pitch of the mandrel housing portion on the mandrel housing cart 8a (step S23). Therefore, at this time, each position of the moved empty mandrel coincides with each mandrel support device 27, 29 of the pair of arms 28.

At this position, the compressed air is supplied to the right chamber 38a of the right air cylinder 38 and the left chamber 3 of the left air cylinder 36.
6a, the right piston drum 37 and the left piston drum 35 are respectively moved inward of the arms. By the operation of the two piston drums, the mandrel chucking spindles 41 and 42 support both ends of the empty mandrel (steps S12 and S13).

Thereafter, a pair of arms 28
And the empty mandrel is set at a predetermined filament winding position as shown in FIG. 14 (step S14). At the same time, the empty mandrel starts to be rotated by the servomotor 43 and the waist drum 39 starts to be rotated by the reversible rotary servomotor 29a (step S15).

Further, the yarn traversing device 5 is provided in FIG.
As shown in (1), the motor 15 starts moving to the filament winding position (step S16). When the pair of arms 28 reach the predetermined filament winding position A, the movement of the arms 28 is stopped (step S17), and the rotation of the empty mandrel 14 and the waist drum 39 is stopped (step S18).

Next, the waist drum 39 starts to be rotated in the reverse direction by the reversible rotary servomotor 29a. The waist yarn wound on the waist drum 39 is unwound and wound around the end of the empty mandrel 14 as shown in FIG. 16 (step S19). At this time, if the edge of the waist drum 39 is formed in a corrugated shape 53 as shown in the figure, a suitable traverse can be performed when the unwound yarn is wound around the end of the empty mandrel 14. Can be given. By this operation, the waist yarn wound on the waist drum 39 is all wound around the end of the empty mandrel 14, and the yarn originally wound around the end of the empty mandrel 14 is
The waist thread wound thereover fixes the mandrel 14 more firmly to the end. The rotation of the waist drum 39 is stopped, and the thread switching to the predetermined empty mandrel 14 ends.

After this thread switching operation, as shown in FIG.
Regular yarn traverse is started, and filament winding onto the mandrel 14 is started.

On the other hand, the mandrel holding device 8 is returned to the original position by the air cylinder 9, and the rails 49a, 49b
Is connected to the rail 49 (step S24). Thereafter, the cart 8a on which the full mandrel is mounted is transported to an appropriate next step (step S25).

[0040]

As described above, according to the filament winding molding apparatus of the present invention and the method of using the same, a large number of mandrels can be simultaneously undone in a short time, and the operation rate of the apparatus can be greatly increased. it can.
In addition, a series of yarn switching operations of cutting a yarn, temporarily holding the cut yarn on a wet drum, and winding the held yarn around an empty mandrel, without manual operation, are performed fully automatically. Therefore, the thread switching time can be greatly reduced, and the safety of the operation can be ensured, and the problem of soiling the hands of the operator can be eliminated.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the apparatus of FIG.

FIG. 3 is a perspective view of a winding section of the apparatus of FIG. 1 and its vicinity.

FIG. 4 is a longitudinal sectional view of a pair of mandrel chucking portions of the device of FIG.

FIG. 5 is an enlarged partial perspective view of a yarn carriage stand of the apparatus of FIG. 1;

FIG. 6 is a flowchart of a yarn switching operation of the apparatus of FIG. 1;

FIG. 7 is a partial front view showing the operation of the apparatus of FIG. 1 at the start of thread switching.

FIG. 8 is a partial front view showing a next operation of the yarn switching in the apparatus of FIG. 1;

FIG. 9 is a partial perspective view of the cutter of the apparatus of FIG. 8;

FIG. 10 is a schematic side view showing the next operation of the yarn switching in the apparatus of FIG. 1;

11 is a schematic side view showing still another operation of the yarn switching in the apparatus of FIG. 1;

FIG. 12 is a partial front view illustrating a further next operation of yarn switching in the apparatus of FIG. 1;

FIG. 13 is a schematic side view showing a further next operation of yarn switching in the apparatus of FIG. 1;

FIG. 14 is a schematic side view showing the next operation of the yarn switching in the apparatus of FIG. 1;

FIG. 15 is a partial front view showing a further next operation of the yarn switching in the apparatus of FIG. 1;

FIG. 16 is a partial front view showing still another operation of the yarn switching in the apparatus of FIG. 1;

FIG. 17 is a partial front view showing an operation after the yarn switching in the apparatus of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 yarn 2 creel device 2a creel stand 2b bobbin 3 resin impregnating device 4 resin impregnated yarn 5 yarn traverse device 6 filament winding device 7 yarn winding device 8 mandrel holding device 10 yarn carriage stand 14 mandrel 15 reversible rotation Motor 16 Tape traverse device 27, 29 Mandrel support device 27c, 29c, 40 Bearing 28, 28a, 28b Arm 29a Reversible rotary servomotor 35, 37 Piston drum 36, 38 Air cylinder 39 Waist drum 41, 42 Mandrel chucking spindle 43 Servo Motor 51 cutter

Claims (4)

(57) [Claims] A creel stand for holding a plurality of bobbins; a resin impregnating section for impregnating a yarn formed by bundling a plurality of filaments supplied from the bobbin of the creel stand with a synthetic resin; A mandrel that winds the impregnated yarn,
A pair of chucking members for detachably holding both ends of the mandrel, bearings for rotatably supporting each of the pair of chucking members, and driving at least one of the pair of chucking members (A) the filament winding molding device, comprising: a winding portion of the yarn having a driving unit for causing the yarn; and a traverse portion for traversing the yarn impregnated with the synthetic resin in an axial direction of the mandrel. A waist drum for temporarily winding the yarn is provided between one chucking member of the pair of chucking members and the bearing, and (b) a gap is provided between the chucking member and the waist drum. (C) the waist drum is temporarily wound around the waist drum near the waist drum; And a cutting means for cutting a yarn extending between the mandrel and the filament so as to be able to enter and exit the gap. 2. The filament winding forming apparatus according to claim 1, further comprising a driving unit for driving the waist drum, separately from a driving unit for driving the chucking member. 3. The filament winding molding apparatus according to claim 2, wherein one of said chucking members is rotatably provided in said waist drum. 4. After fully winding the yarn from the resin-impregnated portion around the mandrel, the traverse means guides the yarn on the full-wound mandrel onto the waist drum. After the yarn is wound around, the cutting means cuts the yarn extending between the full winding mandrel and the waist drum, thereby temporarily
The yarn from the resin impregnated portion is transferred onto the waist drum, the full mandrel is doffed from the pair of chucking members, and then an empty mandrel is donned to the pair of chucking members, and the driving means is provided. By driving the traverse means positioned on the waist drum in the direction of the empty mandrel, the yarn on the waist drum is threaded on the end of the empty mandrel. Item 4. A method for using the filament winding molding device according to any one of Items 1 to 3.