KR101906498B1 - High speed filament winding machine of vertical axis - Google Patents

Abstract

The present invention provides a vertical high speed filament winding machine (1) for winding a plurality of filaments (F) at once after vertically erecting a wining target (W) that is a pressure vessel. The present invention includes a lower base (2) in which a spindle (21) configured to couple a lower end of a mandrill (M) is installed, an upper support (3) in which a feeding support member (31) supporting an upper end of the mandrill (M) is installed, a vertical feeding member (4) connecting the lower base (2) and the upper support (3) and in which a vertical feeding rail (41) is installed, a vertical feeding panel (5) in which a vertical slider (51) coupled to the vertical feeding rail (41) to be fed upwards and downwards, a horizontal feeding eding panel (6) in which a horizontal slider (62) coupling to a horizontal feeding rail (61) installed on a front surface of the vertical feeding panel (5) to be fed leftwards and rightwards, a filament supply member (7) configured to supply a filament (F) supplied from a creel box (C) to a front side of the horizontal feeding panel (6) to a winding target (W) fixed to the mandrill (M), a vertical feeding means (8) configured such that the vertical feeding panel (5) is fed upwards and downwards in the vertical feeding member (4), and a horizontal feeding means (9) configured such that the horizontal feeding panel (6) is fed leftwards and rightwards on a front surface of the vertical feeding panel (5). Accordingly, various effects, for example, of maximizing productivity maximized by remarkably improving winding speed and winding efficiency, preventing the filaments (F) from being twisted, entangled, or pulled, and making surrounding environments clean may be expected.

Description

Technical Field [0001] The present invention relates to a high speed filament winding machine,

The present invention relates to a filament winding machine for a pressure vessel. More specifically, the present invention relates to a filament winding machine for a pressure vessel, in which a pressure vessel is vertically erected so that a large number of filaments can be wound at one time to wind the filament more quickly, To a vertical high-speed filament winding machine.

BACKGROUND ART In general, a device for filament winding of a pressure vessel or the like is rotated by horizontally laying a pressure vessel, and the filament is impregnated with resin and then wound around a rotating pressure vessel. In order to improve productivity, However, there is a limit to increase the rotational speed of such a pressure vessel. When the resin is rotated at a high speed, the resin on the filament is separated by the centrifugal force and the apparatus and the periphery are contaminated by the resin. The amount of the resin to be applied to the outside of the pressure vessel is reduced by the separation of the pressure vessel, so that it is difficult to improve the productivity and the durability of the pressure vessel is lowered.

As a filament winding apparatus such as a general pressure vessel as described above, a mandrel is horizontally installed between left and right spindles and a tailstock as disclosed in Korean Patent Publication No. 2413 (published on Apr. 26, 1986) There has been developed a technique in which a resin impregnated fiber supplied through a sinking trough is wound around a carriage in a reciprocating motion of the resin impregnated fiber. However, in such a device, the resin impregnated fiber is wound around only one mandrel, .

In order to improve the productivity, a plurality of spindles and a plurality of feed shafts are provided on opposite sides of the body, respectively, as in the registered utility model No. 317059 (published on June 25, 2003) filed by the inventor of the present invention, It is possible to increase the productivity by winding the filaments in several pressure vessels at a time by providing a guider for guiding the filaments to the carrier depending on the number of the tanks, In this case, since the apparatus is complicated by the provision of the spindle, the feed shaft, and the guider of the carriage as many as the number of pressure vessels for winding the filament, the production efficiency is low because the apparatus is complicated and the manufacturing cost rises due to frequent troubles. When a large number of pressure vessels are mounted, the size of the pressure vessel is small and light And the pressure vessel is large in size and heavy, it is not suitable and it can not be generalized.

In addition, if the tank to be a pressure vessel is long and heavy, conventionally, as disclosed in a registered utility model No. 317060 (published on June 25, 2003) filed by the inventor of the present invention, a guide rail A filament winding machine in which a guide roller is rotatably mounted on a spindle is installed in a lateral direction between the spindle and the feed shaft and a filament guider is mounted on the carriage in correspondence with the number of tanks, In the conventional devices for filament winding, most of the devices for the winding of the filament, which is a pressure vessel, are horizontally rotated in the apparatus, and the filament is fed only through one carriage through one carriage, It can not improve productivity. Dawn will.

KR 10-1986-0002413 A 1986. 4. 26. KR 20-0317059 Y1 June 25, 2003. KR 20-0317060 Y1 June 25, 2003.

The present invention has been made to solve the above-described problems of the prior art, and it is an object of the present invention to provide a method and a device for winding a filament by vertically rotating the filament, A plurality of discharge guides for supplying filaments are provided so as to simultaneously supply filaments to the object to be wound at a plurality of places so that the speed and efficiency of filament winding can be significantly improved as compared with the conventional winding apparatuses. will be.

In addition to this, the present invention can prevent the resin contained in the filaments passing through the resin impregnation tank for impregnating the filament with resin from falling to the floor or scattering to the periphery by the rotation of the winding object, It is used as a towpreg made of a carbon fiber composite material preliminarily impregnated with a resin to prevent the durability of the wound object from deteriorating after being separated from the object to be wound, so that the resin impregnation tank, which is installed in connection with the winding machine, It is an object of the present invention to improve clean environment, equipment simplification, winding speed and durability of a winding object by preventing resin from being separated even if winding is performed at a higher speed.

Although not described separately, other objects within the range that can be inferred from the consideration of the specific contents, claims, drawings, and the like for carrying out the invention described in detail of the vertical high-speed filament winding machine of the present invention And is included in the entire solution of the invention.

The high-speed filament winding machine of the present invention comprises a high-speed filament winding machine of a vertical type, wherein the high-speed filament winding machine of the present invention stands up to be rotated by a rotation driving motor installed on the upper side, And a vertical transfer belt provided with a vertical transfer rail in a direction in which the spindle is installed is provided on a side of the lower base, and the vertical transfer belt is protruded to the lower base from the upper portion And a vertical conveying panel provided with a vertical slider which is coupled to the vertical conveying rail of the vertical conveying path and is vertically conveyed. The vertical conveying panel is provided with a conveying support for supporting the upper end of the mandrel rotated by the spindle, Is coupled to the horizontal feed rail installed on the front of A filament feeder protruding forward of the horizontal feeder panel and configured to feed a filament fed from a crick box to a winding object fixed to the mandrel is provided when the horizontal feeder panel is provided with a horizontal slider to be fed, And vertical conveying means configured to be vertically conveyed to be vertically conveyed in the conveying path and horizontally conveying means configured to convey the horizontal conveying panel to the left and right in front of the vertical conveying panel.

According to the present invention, there is provided a vertical high-speed filament winding machine in which a mandrel, to which a filament winding object is fixed by a spindle of a lower base and a conveying support of an upper support, A plurality of filaments are simultaneously supplied to a winding object fixed to the mandrel through four or eight filament discharge openings provided on the filament supply belts on both sides of the mandrel so as to be wound all at once to greatly improve the speed and efficiency of winding, It is possible to maximize the productivity.

In addition, when filaments are supplied to the object to be wound in the crick box, filament ejection openings provided with a plurality of guide rollers on the filament feeder protruding from both sides of the object to be wound are disposed between the drawer of the crick box and the object to be wound, So as to prevent the filament from being twisted, twisted, or pulled, so that the winding is smoothed more smoothly.

In addition, by using a filament preliminarily impregnated with resin, the filaments drawn out from the krill box without a related-art resin impregnation tank and a related apparatus provided between the krill box and the winding machine are directly fed to the filament outlet of the winding machine Since the winding of the winding object is performed, the equipment cost can be remarkably reduced due to the simplification of the equipment, and the resin contained in the filament in the resin impregnation tank is not scattered on the bottom even when winding on the winding object. The winding object can be rotated at a higher speed without worrying about scattering of the resin during winding, and thus the winding speed can be further improved.

1 is a perspective view of a filament winding machine according to an embodiment of the present invention;
2 is a front view of a filament winding machine provided in the present invention;
3 is a plan view of the filament winding machine provided by the present invention.
4 is a cross-sectional view of the filament winding machine provided by the present invention
FIG. 5 is a view showing an example of the configuration of the filament discharge port in the present invention
FIG. 6 is a view showing an example of vertical transport in the present invention
Fig. 7 is a diagram showing an example of horizontal transport in the present invention

The present invention provides a method of winding a filament, which is a pressure vessel capable of compressing and storing various gases (CNG, oxygen, hydrogen, etc.) vertically and vertically so as to wind a large number of filaments at a time, Accordingly, the present invention provides a vertical high-speed filament winding machine for improving productivity. The present invention will be described in more detail with reference to the accompanying drawings, in which: And the terms used are also intended to be illustrative only and should not be construed as being limited to such terms.

The vertical high-speed filament winding machine 1 according to the present invention has a plurality of bobbins F1 wound around a filament F as shown in FIG. 1, a front view and a plan view of FIG. 2 and FIG. 3 The filament F supplied from the krill box C in which a plurality of filament F yarns are drawn out to the lead portion C1 is wound on the outside of the wound object W to be vertically erected and rotated.

In the present invention, in order to rotate the object W in a vertically standing state, a lower base 2 positioned at the lower side and an upper supporter 3 vertically connected to the upper side are provided The mandrel M is vertically rotated to rotate between the lower base 2 and the upper support 3. The mandrel M is vertically fixed to the object W to be wound.

A spindle 21 having a chuck on which a lower end of the mandrel M is coupled is rotatably supported by a rotation driving motor 22 installed on the inner side of the lower base 2, And a conveyor support 31 for supporting an upper end of a mandrel M which is vertically conveyed and rotated by a cylinder 32 installed inward is installed at a lower portion of the upper support 3.

The vertical transfer table 4 in which the lower part is fixed to one side of the lower base 2 and the upper support part 3 protrudes from the upper part has a vertical transfer rail 41 parallel to the direction in which the spindle 21 is installed, And a vertical slider 51 which is vertically conveyed is vertically provided on the vertical transfer rail 41 of the vertical transfer belt 4 by being vertically conveyed by the vertical transfer rail 41, (5).

A horizontal conveying rail 61 is installed on the front surface of the vertical conveying panel 5 and a horizontal slider 62 conveyed to the left and right on the horizontal conveying rail 61 is fixed to the rear A horizontal transfer panel 6 is provided.

The filament F supplied from the crill box C to the front of the horizontal transfer panel 6 is fed to the winding object W fixed to the mandrel M, Respectively.

4, when the spindle 21 is rotated by the rotation driving motor 22 inside the lower base 2, the mandrel M is rotated to rotate the winding object W, The filament outlet 70 is provided so that the filaments F wound on the outer side of the filament F are not twisted.

5, the filament outlet 70 includes a through-hole drum 71 fixed to penetrate the filament feeder 7, a pair of support brackets 71 projecting toward the mandrel M from the through-hole drum 71, Shaped inlet guide roller 73 and a through-hole drum 71 that are freely rotatable about the through-hole drums 71 between the pair of support brackets 72, And a pair of support brackets 72 that are arranged in a zigzag manner between the inlet guide roller 73 and the discharge guide roller 74 so as to freely rotate and are provided with a number of guide grooves Position guiding roller 75 formed with a plurality of guide rollers 76.

The filaments F supplied from the krill box C to the filament outlet 70 are provided with four bobbins F1 in the krill box C and four yarns The filaments F of the filament F are pulled out through the drawing portion C1 to pass through the penetrating drum 71 of the filament outlet 70 and enter the drawing guiding roller 73 between the pair of supporting brackets 72, Is guided and supplied to the object W to be wound through the discharge guide roller 74 while passing through the guide groove 76 of the fixed position guide roller 75. At this time, between the krill box C and the filament discharge opening 70 The filament F is immersed in various resins such as an epoxy resin in advance to be used as a prepreg or a towpreg containing the resin in advance so that it can be directly supplied And the filament F is wound on the inside of the krill box C The number of the guide grooves 76 of the fixed position guide roller 75 of the filament discharge port 70 when four or more bobbins F1 are provided corresponds to this.

1 to 4, a driving unit 10 for driving the vertical conveying panel 5 and the horizontal conveying panel 6 is provided at one side of the vertical conveying panel 5, Are vertically divided into a vertical conveying unit 8 and a horizontal conveying unit 9. The vertical conveying unit 8 is configured to vertically convey the vertical conveying panel 5 in the vertical conveying unit 4, The horizontal conveying means 9 is configured so that the horizontal conveying panel 6 is horizontally conveyed in the front face of the vertical conveying panel 5. [

The vertical conveying unit 8 includes a rack 81 provided in the vertical direction at one side of the vertical table 4 in detail, a pinion 82 meshing with the rack 81, A vertical feed motor 83 fixedly mounted on a drive panel 11 extending from one side of the pinion 82 and having a vertical feed drive shaft 84 axially coupled to the pinion 82 for rotational drive of the pinion 82, .

The horizontal conveying means 9 includes a lead screw 91 provided to support the bearing 911 so as to freely rotate in parallel with the horizontal conveying rail 61 at the front surface of the vertical conveying panel 5 in detail, A nut block 92 fixed to the rear surface of the horizontal transfer panel 6 while being fixed to the drive panel 11 extending from one side of the vertical transfer panel 5, And a horizontal feed motor 93 having a horizontal feed drive shaft 94 axially coupled to a drive pulley 95 interlocked with a driven pulley 97 fixed to the driven pulley 97 by a belt 96.

1 to 4, the horizontal transfer panel 6 is divided into two portions, which are fed from the front of the vertical transfer panel 5 to the left and right, More specifically, the horizontal transfer panel 6 is provided with a pair of horizontal transfer rails 61 fixed to the front surface of the vertical transfer panel 5 to face each other with respect to the center of the mandrel M, And is divided into the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2.

The filament supply belt 7 is supported by the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2 with a first filament supply belt 7b protruding from the center of the mandrel M, The nut block 92 is also divided into the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2, And a first nut block 92 (hereinafter, referred to as " first nut block 92 ") which is fixed to both sides of a bidirectional double lead screw 91-1 which is fixedly installed on the rear surface of the mandrel M, -1) and a second nut block 92-2.

1 and 3, the filament F supplied from the krill box C is fed to the mandrel M through the first filament supply band 7-1 and the second filament supply band 7-2, The filament discharge port 70 is provided with a plurality of guide rollers 70 guided to the outside of the fixed winding object W. The filament discharge port 70 is provided to the winding object W fixed to the mandrel M 1 through the filament supply port 7-1 and the second filament supply band 7-2 in such a manner that the through drums 71 of the filament discharge ports 70 are connected to the The first filament supply unit 7-1 and the second filament supply unit 7-2 are provided so as to penetrate the first filament supply unit 7-1 and the second filament supply unit 7-2 with a predetermined angle? A guide guiding roller 73 provided between the pair of support brackets 72 and a plurality of right guiding rollers 72 The plurality of filaments F drawn out to the drawing portion C1 of the crick box C by the feeding guide roller 75 and the discharge guide roller 74 can be guided and fed more smoothly without being twisted or pulled by the object W to be wound It is.

The filaments F supplied from the krill box C are supplied to the first filament supply band 7-1 and the second filament supply band 7-2 at predetermined intervals toward the mandrel M, 1 to 4, two filament discharge ports 70 for guiding the filament discharge port 70 to the outside of the winding object fixed to the winding station M are provided, and if necessary, the first filament supply band 7-1 and the second filament supply port 70 3 to 4 filament discharge ports 70 may be provided in the filament supply band 7-2. In this case, the lengths of the first filament supply band 7-1 and the second filament supply band 7-2 The first filament supply band 7-1 and the second filament supply band 7-2 may be different from each other depending on the position of the filament outlet 70. [ It is possible that the shape of the object may vary in an arc shape or the like.

The high-speed filament winding machine 1 of the present invention having the above-described structure according to the present invention is configured such that the conventional filament winding devices are separated from the mandrel M and the winding object W fixed thereto by being always rotated horizontally, M and the object to be wound W can be installed vertically and rotatably in a vertical direction so that a plurality of filaments F can be wound around a plurality of filaments F So that the yarn can be wound at a high speed, thereby improving the speed and efficiency of winding, thereby maximizing the productivity.

6, when the vertical conveying motor 83 of the vertical conveying means 8 is driven in the forward and reverse directions, the vertical conveying drive shaft The pinion 82 axially coupled to the vertically movable table 4 is moved along the rack 81 provided on one side of the vertically movable table 4 and the vertical conveyance rail 41 mounted on the vertically movable table 4 is driven, The horizontal transfer panel 6 positioned in front of the vertical transfer panel 5 and the filament supply band 7 and the filament discharge port 70 provided thereon are vertically transferred.

7, when the horizontal feed motor 93 of the horizontal feed means 9 is driven in the forward and reverse directions, the rotational drive force of the horizontal feed drive shaft 94 is transmitted to the drive pulley 95 and the belt 96 The nut block 92 screwed to the lead screw 91 is transferred to the left and right by transferring it to the lead screw 91 fixed to the driven pulley 97 that is interlocked with the lead screw 91. As the horizontal transfer panel 6 is transferred to the left and right, The filament supply band 7 and the filament discharge port 70 protruding from the front of the transfer panel 6 are transferred to the right and left.

The horizontal transport panel 6 is divided into a first horizontal transport panel 6-1 and a second horizontal transport panel 6-2 so that the filament supply band 7 is also separated from the first horizontal transport panel 6-1, And a second filament feeder 7-2 disposed on the second horizontal transfer panel 6-2 so as to be opposed to each other with respect to the center of the mandrel M to form a mandrel M Are connected to both sides of the bidirectional double lead screw 91-1 formed so as to face each other in the opposite directions with respect to the center of the first horizontal transfer panel 6-1 and the second horizontal transfer panel The first nut block 92-1 and the second nut block 92-2 are fixed to the rear surface of the bidirectional double lead screw 91-1 by driving the horizontal feed motor 93, The first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2, in which the first nut block 92-1 and the second nut block 92-2 are fixedly fixed, ) Gathered and then The first filament supply band 7-1 and the second filament supply band 7-2 provided in the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2 are connected to the mandrel M So that the filament discharge ports 70 provided in the first filament supply band 7-1 and the second filament supply band 7-2 are also moved towards or away from the mandrel M, In this manner, the winding speed and efficiency can be doubled by simultaneously winding two or four filament discharge ports 70 on both sides of the object W to be wound.

The filament discharge ports 70 of the first filament supply band 7-1 and the second filament supply band 7-2 which are transferred from the vertical transfer panel 5 to the left and right as described above, From the longitudinal direction of the first filament supply band 7-1 and the second filament supply band 7-2 between the winding object W fixed to the mandrel M at the lead portion C1 at a predetermined angle? A take-in guide roller 73 which is freely rotated between a pair of support brackets 72 protruding toward the mandrel M from the through-drums 71 while being provided with a through-hole drum 71 so as to have a predetermined length The filament F is not entangled, twisted, or pulled excessively by the roller 75 and the discharge guide roller 74, so that the guide can be fed more smoothly.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that the scope of the claims is not limited to the examples but covers the scope of the claims and the scope of equivalents thereof.

C: Creel box C1: Lead portion F: Filament F1: Bobbin M: Mandrel W: Winding object
1: filament winding machine
2: lower base 21: spindle 22: rotation drive motor
3: upper support 31: transfer support 32: cylinder
4: Vertical conveying rail 41: Vertical conveying rail
5: Vertical feed panel 51: Vertical slider
6: horizontal transfer panel 6-1: first horizontal transfer panel 6-2: second horizontal transfer panel 61: horizontal transfer rail 62: horizontal slider
7: filament supply band 7-1: first filament supply band 7-2: second filament supply band 70 :: filament outlet 71: through drum 72: support bracket 73: incoming guide roller 74: discharge guide roller 75: Guide roller 76: guide groove
8: vertical conveying means 81: rack 82: pinion 83: vertical feed motor 84: vertical feed drive shaft
9: horizontal feed means 91: lead screw 91-1: bidirectional double lead screw 911: bearing 92: nut block 92-1: first nut block 92-2: second nut block 93: horizontal feed motor 94: 95: drive pulley 96: belt 97: driven pulley
10: driving part 11: driving panel
θ °: a predetermined angle

Claims (6)

A lower base 2 provided with a spindle 21 that stands up to be rotated by a rotation drive motor 22 installed on the upper side and engages a lower end of the mandrel M;
A vertical transfer table 4 provided on a side of the lower base 2 and provided with a vertical transfer rail 41 in a direction in which the spindle 21 is installed;
An upper support 3 provided with a conveying support 31 for supporting the upper end of the mandrel M which is protruded opposite to the lower base 2 at the upper portion of the vertical conveying belt 4 and rotated by the spindle 21;
A vertical conveying panel 5 provided with a vertical slider 51 coupled to the vertical conveying rail 41 of the vertical conveying belt 4 and being vertically conveyed;
A horizontal conveying panel 6 provided with a horizontal slider 62 coupled to a horizontal conveying rail 61 provided on the front surface of the vertical conveying panel 5 and being conveyed to the left and right;
A filament supply belt 7 which is projected forward of the horizontal transfer panel 6 and is configured to feed the filament F supplied from the krill box C to the winding object W fixed to the mandrel M;
Vertical conveying means (8) provided at one side of the vertical conveying panel (5) and configured to vertically convey the vertical conveying panel (5) in the vertical conveying path (4);
And a horizontal conveying means (9) configured to horizontally convey the horizontal conveying panel (6) from the front of the vertical conveying panel (5) to the left and right.
The method of claim 1,
The vertical transfer means 8 comprises:
A rack 81 provided in the vertical direction from one side of the vertical bar 4;
A pinion 82 to be engaged with the rack 81;
A vertical conveying motor fixed to the drive panel 11 extending from one side of the vertical conveying panel 5 so as to have a vertical conveying drive shaft 84 axially coupled to the pinion 82 to rotationally drive the pinion 82, (83). ≪ / RTI >
The method of claim 1,
The horizontal conveying means 9 comprises:
A lead screw 91 installed on the front surface of the vertical transfer panel 5 to support the bearing 911 so as to be freely rotated in parallel with the horizontal transfer rail 61;
A nut block 92 screwed to the lead screw 91 and fixed to the rear surface of the horizontal transfer panel 6;
The vertical conveying panel 5 is provided with the horizontal conveying driving shaft 94 axially coupled to the driving pulley 95 interlocked with the belt 96 to the driven pulley 97 fixed to one end of the lead screw 91. [ And a horizontal feed motor (93) fixed to the drive panel (11) extending from one side thereof.
The method of claim 3,
The horizontal transfer panel 6 includes a first horizontal transfer panel 6-1 and a second horizontal transfer panel 6-1 which are coupled to the horizontal transfer rail 61 on the front surface of the vertical transfer panel 5 and face the center of the mandrel M, (6-2);
The filament supply stand 7 is provided with a first filament supply stand 7-1 disposed opposite to the center of the mandrel M on the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2, ) And a second filament supply band (7-2);
The lead screw 91 is composed of a bidirectional double lead screw 91-1 whose helical direction is opposite to that of the mandrel M in half by half with respect to the center of the mandrel M;
The nut block 92 is screwed on both sides of the bidirectional double lead screw 91-1 so as to be fixed to the rear surface of the first horizontal transfer panel 6-1 and the second horizontal transfer panel 6-2 A first nut block 92-1 and a second nut block 92-2 which are divided into two;
When the bidirectional double lead screw 91-1 is rotated by the driving of the horizontal feed motor 93, the first nut block 92-1 and the second nut block 92-1 coupled to both sides of the bidirectional double lead screw 91-1 The first horizontal transport panel 6-1 and the second horizontal transport panel 6-2 are transported horizontally so that the first filament supply band 7-1 and the second filament supply band 7-2) are brought closer to or away from the mandrel (M).
The method of claim 4,
The filament F supplied from the krill box C is supplied to the first filament supply band 7-1 and the second filament supply band 7-2 to the outside of the wound object W fixed to the mandrel M A filament discharge port 70 configured to have several guide rollers so as to be guided to the filament outlet 70;
The filament outlet 70 is connected to the winding object W fixed to the mandrel M at a predetermined angle of θ ° in the longitudinal direction of the first filament supply band 7-1 and the second filament supply band 7-2. ). ≪ / RTI > A vertical high-speed filament winding machine comprising:
The method of claim 4,
The filament F supplied from the krill box C is fed to the mandrel M through the mandrel M at a predetermined interval in the first filament supply band 7-1 and the second filament supply band 7-2, , And two to four filament discharging openings (70) provided so as to be guided to the outside of the object (W) fixed to the winding object (W).

Images