JP2013087377A - Annular loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an annular loom for weaving cylindrical fabric which facilitates weft feed.SOLUTION: The annular loom for weaving cylindrical fabric comprises: warp holders 2A,2B having warp cheeses 4A,4B, respectively, which are disposed with a space 3 in a vertical direction, so the warp holder 2A may be arranged circularly as a first group and the warp holder 2B may be arranged circularly as a second group. The warp holder 2A and the warp holder 2B are arranged with their phases differing from each other in circumferential direction. The warp holders 2A comprises first moving members 10A,10B that are located in a first group side while the warp holders 2B comprises second moving members 11A,11B that are located in a second group side, so that the first moving members 10A,10B and the second moving members are located at the opposite sides. The first moving members 10A,10B and the second moving members 11A,11B switch the positions of warp holders 2A,2B between the first group side and the second group side so as to allow the warps 5A,5B to shed. A weft insertion mechanism 15 comprising a weft cheese 18 may move in the space 3 so as to expose the weft cheese 18 outside, thereby facilitating the replacement of the weft cheese 18.

Description

  The present invention relates to an annular loom for weaving a cylindrical woven fabric, and more particularly to a warp opening and weft insertion of an annular loom.

  In a circular loom for weaving a cylindrical woven fabric, generally warp yarns extending in the vertical direction are arranged in a ring shape, and each warp yarn is moved in the opposite direction to form a rhomboid warp opening. A shuttle with a weft bobbin in the opening is moved around by appropriate means to perform weft insertion. The weft bobbin installed on the shuttle has a small amount of weft, so the weft bobbin must be replaced frequently.However, it is very cumbersome and time-consuming to take out and insert the shuttle at the annular warp opening. It takes a lot of work. In order to make the weft bobbin replenishment time as long as possible, conventionally, the loom has a tendency to enlarge the shuttle as much as possible so that a large weft bobbin with an increased amount of weft can be provided. However, an increase in the size of the shuttle causes a problem that the replacement work when the weft is exhausted becomes more complicated.

  In a ring loom, for example, Patent Document 1 discloses a weft insertion means that does not use a shuttle. In Patent Document 1, there are provided two types of a first warp group extending from the upper side to the lower side and a second warp group housed in an annular cylinder disposed in an intermediate portion in the vertical direction. Ring-shaped rotating bodies are respectively provided on the inner side and the outer side of the two warp groups arranged in an annular shape, and weft bobbins are respectively installed on the inner rotating body and the outer rotating body. The narrow tubular yarn guide for guiding the weft of the weft bobbin of the inner rotating body circulates around the outside of the cylinder accommodating the second warp group while contacting the inside of the first warp group, and the first and second warp groups. It is formed to face the confluence position with the group. The narrow tubular yarn guide for guiding the weft of the weft bobbin of the outer rotating body circulates inside the cylinder containing the second warp group while contacting the outside of the first warp group, and the first and second warp groups. It is formed to face the confluence position with the group. The weft bobbin of the inner rotator and the weft bobbin of the outer rotator are installed with a phase difference in the circulation direction of the inner rotator and the outer rotator.

  Therefore, when the inner rotary body and the outer rotary body go around, the yarn guide of the weft bobbin of the inner rotary body pushes the first warp group outward, and a V-shaped outer warp opening is formed between the second warp group and the second warp group. In order to form, the yarn guide weft is inserted into the outer warp opening. Subsequently, the yarn guide of the weft bobbin of the outer rotating body pushes the first warp group inward, and intersects the first warp group and the second warp group. For this reason, the weft inserted into the outer warp opening is sandwiched between the first and second warp groups and the V-shaped inner warp opening is formed by the yarn guide of the weft bobbin of the outer rotating body. The weft guide of the weft bobbin of the outer rotating body inserts the weft into the inner warp opening. The above operation is repeated to weave a cylindrical woven fabric.

JP-A-46-2982

  In Patent Document 1, in order to provide a weft insertion means instead of a shuttle, warp yarns are provided in different forms such as a first warp group and a second warp group, and a warp opening is formed by a yarn guide which is a part of the weft insertion means. A very complicated configuration is required. The weft bobbin installed on the outer rotating body can be exchanged from the outside, but the weft bobbin installed on the inner rotating body exists inside the first warp group arranged in an annular shape. The operation is very complicated as in the case of the shuttle replacement operation. In particular, when the weft bobbin is replaced, the weft end of the old weft bobbin and the weft end of the new weft bobbin must be connected, so that the operation of replacing the weft bobbin becomes more complicated. Further, the second warp group is configured to be accommodated in an annular cylinder, but it is unclear how much warp amount can be specifically accommodated and how the aligned warp is drawn, but at least the first warp group is unclear. The warp capacity of the second warp group is smaller than that of the first warp group, and the replenishment work of the second warp group is considered to be very complicated.

  An object of the present invention is to facilitate replenishment of wefts in an annular loom for weaving a cylindrical woven fabric.

  Claim 1 prepares a plurality of warp cheeses, arranges the warp yarns guided by the warp guide members provided for each warp cheese in an annular shape, and moves the warps in opposite directions to form warp openings. In a circular loom for weaving a cylindrical woven fabric by inserting weft into a warp opening, warp cheese and a warp guide member are installed on a warp holder, and a plurality of warp holders are arranged in a ring as a first group. A plurality of warp holders are arranged in a ring as a second group at intervals from the first group of warp holders, and the first group of warp holders and the second group of warp holders are phased in the circumferential direction. The first moving member and the second moving member that are arranged in a different manner and perform delivery, gripping, releasing, and movement of the warp holders corresponding to the individual warp holders are positioned on the first group side and the second group side, respectively. The position of the warp holder is provided by the first moving member and the second moving member. The first group side and the second group side are switched to open the warp, the weft cheese and the weft guide member of the weft drawn from the weft cheese are installed in the weft insertion mechanism, and the weft insertion mechanism holds the first group warp It arrange | positions in the space formed between a body and the 2nd group warp holder, It moves in the circumferential direction of the warp which arranged the weft insertion mechanism in cyclic | annular arrangement, It is characterized by the above-mentioned.

  According to the first aspect, since a part of the weft insertion mechanism in which the weft cheese is installed can be arranged outside the warp group, the exchange of the weft cheese and the connection of the weft ends can be easily performed.

  According to a second aspect of the present invention, the first group of warp holders and the second group of warp holders are arranged with an interval in the vertical direction, and the warp holders are switched in the vertical direction to open the warps. To do. According to the second aspect, since a part of the weft insertion mechanism in which the weft cheese is installed can be arranged outward in the horizontal direction, the exchange of the weft cheese and the connection of the weft ends can be most easily performed. .

  A third aspect of the present invention is characterized in that the first group of warp holders and the second group of warp holders are arranged at an interval in the horizontal direction, and the warp holders are switched in the horizontal direction to open the warps. To do. According to claim 3, since a part of the weft insertion mechanism in which the weft cheese is installed can be arranged below the warp group, the replacement of the weft cheese and the connection of the weft ends can be easily performed. The installation space for the annular loom can be reduced.

  The present invention can easily supply wefts to a weft insertion mechanism in an annular loom for weaving a cylindrical woven fabric.

It is a fragmentary sectional view which shows the warp holding body and the weft insertion mechanism in 1st Embodiment. It is the fragmentary top view which showed the warp holding body and the weft insertion mechanism. It is a fragmentary sectional view showing warp closing operation by a warp holder. It is a fragmentary sectional view which shows the warp closing time by a warp holding body. It is a fragmentary sectional view which shows the warp opening time by a warp holding body. It is a fragmentary sectional view which shows the warp opening operation | movement by a warp holding body. It is a fragmentary sectional view showing the time of maximum opening of the warp by the warp holder. It is a fragmentary sectional view which shows the warp holding body and the weft insertion mechanism in 2nd Embodiment.

(First embodiment)
A first embodiment will be described with reference to FIGS. In FIG. 1, the warp holding body 2A and the warp holding body 2B are arranged at intervals in the vertical direction of the annular loom 1, and a space 3 is formed between the warp holding body 2A and the warp holding body 2B. Further, the warp holder 2B positioned below the warp holder 2A positioned above is disposed so as to be shifted in the horizontal direction so as to be on the center side of the annular loom 1.

  The warp holder 2A is formed in an L shape (see FIG. 2), and the warp cheese 4A is detachably installed on the warp holder 2A, and the warp 5A drawn from the warp cheese 4A is guided in the horizontal direction. A guide member 6A is installed. The warp guide member 6A is held by a holder 7A provided on the warp holder 2A. Further, gripped portions 8A and 9A made of a magnetic material are provided so as to protrude from the upper surface and the lower surface of the warp holder 2A.

  The warp holding body 2B has the same configuration as the warp holding body 2A, and the warp cheese 4B is detachably installed on the warp holding body 2B, and the warp guide member 6B for guiding the warp 5B in the horizontal direction is a holder 7B. The gripped portions 8B and 9B made of a magnetic material are provided on the upper and lower surfaces of the warp holder 2B. The warps 5A and 5B use any one of fibers such as carbon fiber, glass fiber, and epoxy synthetic fiber.

  As shown in FIG. 2, a plurality of warp holders 2 </ b> A are arranged in the annular loom 1 so as to form a ring and form a first group. A plurality of warp holders 2B are located closer to the center of the loop loom 1 than the warp holder 2A, and a plurality of warp holders 2B are arranged so as to form a ring, forming a second group. Further, the first group of warp holders 2A and the second group of warp holders 2B are arranged with different phases in the circumferential direction. Accordingly, the warp 5A of the warp guide member 6A and the warp 5B of the warp holder 2B are drawn upward through the warp guide member 6A and the warp guide member 6B, respectively, and are arranged in an annular shape as a whole.

  As shown in FIG. 1, the warp holding body 2A is opened by a first moving member 10A provided on the first group side and a second moving member 11A provided on the second group side so as to face the first moving member 10A. Delivery, gripping, opening and moving for The first moving member 10A and the second moving member 11A are provided at positions corresponding to the gripped portions 8A and 9A of the warp holding body 2A, and include gripping portions 12A and 13A each composed of an electromagnet at the tip. FIG. 1 shows a state where the gripping portion 12A of the first moving member 10A is in an excited state and the warp holding body 2A is held at a position on the first group side. The second moving member 11A is in a standby state at a position on the second group side, and the gripping portion 13A is in a non-excited state. Further, the first moving member 10A and the second moving member 11A are configured to be reciprocally movable in an oblique direction so as to be able to approach each other by a drive mechanism (not shown).

  Similarly, the warp holding body 2B is transferred, held, opened and moved for the opening operation by the first moving member 10B provided on the first group side and the second moving member 11B provided on the second group side. The first moving member 10B and the second moving member 11B are provided at positions corresponding to the gripped portions 8B and 9B of the warp holding body 2B, and are respectively provided with gripping portions 12B and 13B made of electromagnets at the tips. In FIG. 1, the first moving member 10B stands by with the gripping portion 12B being de-energized, and the second moving member 11B is holding the gripped portion 9B of the warp holding body 2B with the gripping portion 13B being excited. Therefore, in FIG. 1, the warp 5A drawn from the warp holder 2A and the warp 5B drawn from the warp holder 2B are at the maximum opening position and form the warp opening 14.

  On the other hand, a weft insertion mechanism 15 is disposed in the space 3 formed between the warp holder 2A and the warp holder 2B. The weft insertion mechanism 15 is formed in an L shape extending in the horizontal direction in the space 3 (see FIG. 2), the distal end portion 16 reaches below the warp opening portion 14, and the base portion 17 is the warp holding body 2A and the warp holding body 2B. It is provided so that it may be located on the outer side of the annular loom 1. The weft insertion mechanism 15 is provided with a weft guide member 20 for detachably installing the weft cheese 18 and for guiding the weft 19 drawn from the weft cheese 18. The weft cheese 18 is installed at a position exposed to the outside of the annular loom 1, and the weft guide member 20 is held by a holder 21 provided in the weft insertion mechanism 15. The weft guide member 20 is bent upward from the distal end portion 16 side of the weft insertion mechanism 15, and the upper end of the weft guide member 20 is connected to the weft discharge pipe 23 attached to the disk 22. The disk 22 is configured to be guided by upper surfaces of annular comb guides 24 and 25 that are fixedly provided inside and outside the annular loom 1. The weft 19 uses any one of carbon fiber, glass fiber, epoxy synthetic fiber and the like.

  The weft insertion mechanism 15 is fixed to the annular rotation gear 26 on the base 17 side. The rotating gear 26 is rotatably supported by a guide roller 27 attached to a frame (not shown) of the annular loom 1 and fixed to a floor surface (not shown) or a frame (not shown) of the annular loom 1. It meshes with the drive gear 29 of the drive motor 28. Accordingly, the rotation of the drive motor 28 causes the rotation gear 26 to rotate in the direction of the arrow in FIG. 2 via the drive gear 29, so that the weft insertion mechanism 15 can be moved in the circumferential direction of the annular loom 1.

  The weft 19 inserted into the warp opening 14 by the weft discharge tube 23 of the weft insertion mechanism 15 is beaten by a comb-shaped scissors 30 to form a cylindrical woven fabric 31. The reed 30 is formed in an annular shape, and is driven by appropriate means such as a three-dimensional cam to enter the warp opening 14 and move upward (see the phantom line in FIG. 1). The woven fabric 31 can be beaten at a pre-weaving position.

  The warp opening operation by the warp holder 2A and the warp holder 2B will be described with reference to FIGS. The warp holding body 2A and the warp holding body 2B indicate the maximum opening position where the weft 19 is inserted by the weft insertion mechanism 15 at the position shown in FIG. In FIG. 3, along with the movement of the weft insertion mechanism 15, the warp holder 2A located on the first group side starts to move in the oblique direction (see arrow) toward the second group side by the first moving member 10A. . Further, the first moving member 10B waiting on the first group side starts moving toward the second group side. At the same time, the warp holder 2B located on the second group side starts moving in an oblique direction (see arrow) toward the first group side by the second moving member 11B. Further, the second moving member 11A waiting on the second group side starts moving toward the first group side. For this reason, the warp 5A and the warp 5B start the closing operation.

  In FIG. 4, the weft insertion mechanism 15 is completely moved from the warp opening position of FIG. 1, the warp holding body 2A and the warp holding body 2B are moved to a substantially overlapping position, and the warp 5A and the warp 5B are in the closed state. Become. At this timing, the reed 30 moves from the standby position indicated by the phantom line to the position indicated by the solid line, and holds the weft 19 on the upper surface of the reed 30 by crossing the warp 5A and the warp 5B.

  At the timing when the warps 5A and the warps 5B are closed as shown in FIG. 4, the warp holder 2A and the warp holder 2B are constituted by the first moving member 10A, the second moving member 11A, the first moving member 10B, and the second moving member 11B. Is delivered. That is, in the warp holding body 2A, the gripping portion 13A of the second moving member 11A is excited to hold the gripped portion 9A, and the gripping portion 12A of the first moving member 10A is de-excited to open the gripped portion 8A. . At the same time, in the warp holding body 2B, the gripping portion 12B of the first moving member 10B is excited to hold the gripped portion 8B, and the gripping portion 13B of the second moving member 11B is de-energized to open the gripped portion 9B. . Accordingly, the warp holding body 2A and the warp holding body 2B are in the holding state shown in FIG.

  When the delivery of the warp holding body 2A and the warp holding body 2B is completed, as shown in FIG. 5, the first moving member 10A in the standby state and the first moving member 10B holding the warp holding body 2B are directed toward the first group side. Start moving in the diagonal direction (see arrow). At the same time, the second moving member 11A holding the warp holding body 2A and the second moving member 11B in the standby state start moving in an oblique direction (see arrows) toward the second group side. At this timing, the reed 30 further rises from the position of the imaginary line, and the weft 19 is beaten to the position before the woven cloth 31 to form the cylindrical woven cloth 31. The woven fabric 31 is wound up sequentially by a winding unit (not shown) installed above the annular loom 1.

  As the warp holding body 2A and the warp holding body 2B move toward the second group side and the first group side, respectively, the warp 5A and the warp 5B move in opposite directions. As shown in FIG. 6, the warp 5A and the warp 5B form a warp opening 14 while taking a position opposite to that in FIG. At this timing, the bag 30 has already returned to the standby position. As the warp opening operation further proceeds, as shown in FIG. 7, the warp holding body 2B reaches the position on the first group side and the warp holding body 2A reaches the position on the second group side. For this reason, the warp 5A and the warp 5B form the warp opening 14 in a state where the warp 5A and the warp 5B are arranged at the maximum warp opening position opposite to that in FIG.

  When the warp opening 14 shown in FIG. 7 is formed, the weft insertion mechanism 15 enters the space 3 and the warp opening 14 formed between the warp holding body 2A and the warp holding body 2B. A new weft 19 is inserted into In this way, for the opening / closing opening of the warp 5A and the warp 5B, the vertical replacement of the warp holder 2A and the warp holder 2B is repeated between the position on the first group side and the position on the second group side. By doing so, the weft insertion mechanism 15 having a drive source outside can be moved, and the weaving operation of the annular loom 1 can be performed.

  The weft cheese 18 installed in the weft insertion mechanism 15 is exposed to the outside in the horizontal direction of the annular loom 1. For this reason, when the weft cheese 18 is exhausted, the operator can easily replace the exhausted weft cheese 18 with a new weft cheese 18. Since the weft 19 uses any one of carbon fiber, glass fiber, epoxy synthetic fiber, etc., the connection between the weft end of the exhausted weft cheese 18 and the weft end of the new weft cheese 18 is bonded. Or it must be done by heating. However, since the connection work of the weft ends is an external work, it is very easy. In addition, even when the warp cheeses 4A and 4B installed on the warp holder 2A and the warp holder 2B are exhausted, the exhausted warp cheeses 4A and 4B are exposed to the outside, so that the new warp cheeses 4A and 4B are simple. Can be replaced.

(Second Embodiment)
FIG. 8 shows the second embodiment. The same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the warp holding body 32A formed in an L shape is arranged in the vertical direction, and the warp holding body 32B having the same shape as the warp holding body 32A is disposed closer to the center side of the annular loom 1 than the warp holding body 32A. Are arranged in the vertical direction at certain intervals. Further, a space 33 communicating with the outside is formed between the warp holding body 32A and the warp holding body 32B. A plurality of warp holders 32A are arranged so as to form a ring around the ring loom 1 to form a first group, and similarly, a plurality of warp holders 32B are arranged so as to form a ring around the ring loom 1 The second group is configured. The warp holders 32A and the warp holders 32B are arranged with different phases in the circumferential direction.

  The warp holding member 32A is provided with a warp cheese 4A and a warp guide member 34A for a warp 5A drawn from the warp cheese 4A. The warp guide member 34A is formed so as to extend linearly in the vertical direction, and is fixed to the warp holder 32A by means (not shown) corresponding to the holder 7A of the first embodiment. Further, gripped portions 35A and 36A made of a magnetic material are provided on both end surfaces in the horizontal direction of the warp guide member 34A.

  In the warp holding body 32B, the warp cheese 4B and the warp guide member 34B of the warp 5B drawn from the warp cheese 4B are installed. The warp guide member 34B is configured to linearly extend in the vertical direction, and is fixed to the warp holder 32B by means (not shown) corresponding to the holder 7B of the first embodiment. Further, gripped portions 35B and 36B made of a magnetic material are provided on both end surfaces in the horizontal direction of the warp guide member 34B.

  The first moving member 37A and the second moving member 38A that deliver, hold, release, and move the warp holding body 32A for opening operation are disposed to face the first group side and the second group side, and are shown in the figure. It is reciprocated in the horizontal direction by the drive mechanism that does not. Similarly, the first moving member 37B and the second moving member 38B that deliver, hold, release, and move the warp holding body 32B for opening operation are opposed to the first group side and the second group side. It is disposed and reciprocated in the horizontal direction by a drive mechanism (not shown).

  At the tips of the first moving members 37A, 37B and the second moving members 38A, 38B, grip portions 39A, 39B and 40A, 40B made of electromagnets are provided. In FIG. 8, the first moving member 37A excites the gripping portion 39A to hold the warp holder 32A on the first group side, and the second moving member 38A is in a standby state with the gripping portion 40A de-excited. Further, the second moving member 38B excites the gripping portion 40B to hold the warp holding body 32B on the second group side, and the first moving member 37B is in a standby state with the gripping portion 39B de-excited. Accordingly, as the first moving members 37A and 37B and the second moving members 38A and 38B move in the horizontal direction, the warp holding body 32A and the warp holding body 32B are moved to the first group side as in the first embodiment. It is exchanged between the second group side, and the warp 5A and the warp 5B can be caused to perform an opening motion.

  The weft insertion mechanism 41 is provided with a weft guide member 43 fixedly installed on a U-shaped frame 42 so that the weft cheese 18 is detachable and linearly extends upward. The weft guide member 43 has a length that reaches the warp opening 14 through the space 33 formed by the warp holder 32A and the warp holder 32B, and a disk 44 is fixed to the upper end. The disk 44 always contacts and is guided on annular comb-shaped guides 45 and 46 which are fixedly disposed so as to enter the warp opening 14 from the inside and the outside.

  The weft cheese 18 installed on the frame body 42 and the frame body 42 of the weft insertion mechanism 41 is disposed below the warp holding body 32A and the warp holding body 32B. The frame 42 is provided with a drive motor 47 and a driven gear 49 that meshes with a drive gear 48 fixed to the motor shaft of the drive motor 47. A roller 51 fixed to the rotating shaft 50 of the driven gear 49 and a freely rotating roller 52 are attached to the outer surface of the frame body 42. The rollers 51 and 52 are installed on a floor surface or a pedestal 53 provided on the floor surface, and the frame body 42 is guided to a track (not shown) provided on the pedestal 53 by the rolling of the rollers 51 and 52, and the annular loom 1. It can move in the circumferential direction.

  In the second embodiment, the first moving members 37A and 37B and the second moving members 38A and 38B move in the horizontal direction, and the warp holding body 32A and the warp holding body 32B are moved to the first group side position and the second group side. By switching to the position, the opening operation of the warps 5A and 5B can be performed. The weft insertion mechanism 41 can move in the circumferential direction with the weft cheese 18 exposed to the outside, and can insert the weft 19 into the warp opening 14 of the warps 5A, 5B. Therefore, the second embodiment can easily replace the weft cheese 18 as in the first embodiment. Moreover, replacement | exchange of warp cheese 4A, 4B is also easy.

  The present invention is not limited to the configuration of each of the embodiments described above, and various modifications are possible within the scope of the gist of the present invention, and can be implemented as follows.

(1) The first and second embodiments may be carried out by installing warp cheese corresponding to several to a dozen warps on one warp holder 2A, 2B, 32A, 32B. good.
(2) The weft insertion mechanisms 15 and 41 can be implemented by a configuration in which a plurality of weft insertion mechanisms 15 and 41 are arranged at equal intervals in the circumferential direction of the annular loom 1.
(3) A magazine may be formed in the weft insertion mechanisms 15 and 41, and a plurality of spare weft cheeses 18 may be installed in the magazine.
(4) You may comprise so that several spare warp cheese may be installed in warp holder 2A, 2B, 32A, 32B.

(5) The gripping portions 12A and 12B of the first moving members 10A and 10B and the gripping portions 13A and 13B of the second moving members 11A and 11B are not limited to a configuration using an electromagnet, but a mechanical configuration using spring force or It can be replaced with a configuration using a fluid such as air pressure or hydraulic pressure.
(6) The first moving members 10A and 10B and the second moving members 11A and 11B are not limited to a configuration that moves obliquely between the first group side and the second group side. It can implement by the structure which moves in combination with a movement.
(7) 1st Embodiment and 2nd Embodiment can be set as the structure which has arrange | positioned the winding part of the cylindrical woven fabric in the lower part of the annular loom.

(8) The cylindrical woven fabric 31 woven efficiently in the first embodiment and the second embodiment is cut into a 45 degree spiral so as to have a 45 degree weave used for the fiber reinforced composite material. It can be used as a woven fabric with a high yield.
(9) The first and second embodiments are not limited to the use of fibers such as carbon fibers, glass fibers, or epoxy synthetic fibers as the wefts 19 and warps 5A, 5B, but are used for general woven fabrics. Cotton yarn or synthetic fiber yarn can be used.

1 Circular loom 2A, 2B, 32A, 32B Warp holder 3, 33 Space 4A, 4B Warp cheese 5A, 5B Warp 6A, 6B, 34A, 34B Warp guide members 8A, 8B, 9A, 9B, 35A, 35B, 36A, 36B Grasping part 10A, 10B, 37A, 37B 1st moving member 11A, 11B, 38A, 38B 2nd moving member 12A, 12B, 13A, 13B, 39A, 39B, 40A, 40B Grasping part 14 Warp thread opening 15, 41 Weft insertion mechanism 18 Weft cheese 19 Weft 20, 43 Weft guide member 23 Weft discharge pipes 24, 25, 45, 46 Comb guide 26 Rotating gears 28, 47 Drive motor 30 筬 31 Woven cloth 42 Frame

Claims (3)

A plurality of warp cheeses are prepared, warp yarns guided by the warp guide members provided for each of the warp cheeses are arranged in an annular shape, and the warp openings are formed by moving the warps in opposite directions to form the warp openings. In a circular loom that weaves a cylindrical woven fabric by inserting wefts into the part,
The warp cheese and the warp guide member are installed in a warp holder, a plurality of the warp holders are arranged in a ring as a first group, and a plurality of the warp holders are spaced apart from the first group of warp holders. The body is arranged in a ring as a second group, and the first group of warp holders and the second group of warp holders are arranged in different phases in the circumferential direction, corresponding to the individual warp holders. A first moving member and a second moving member for delivering, gripping, releasing and moving the warp holding body are provided facing the positions on the first group side and the second group side, respectively, and the first moving member And the second moving member replaces the position of the warp holding body between the first group side and the second group side to open the warp, and the weft cheese and the weft guide member for the weft drawn from the weft cheese Installed in a weft insertion mechanism, the weft insertion mechanism is the first group Annular loom arranged in a space formed between the warp holding member and the warp holding member of the second group, characterized by moving the weft insertion mechanism in a circumferential direction of the warp yarns arranged in the annular.   The first group of warp holders and the second group of warp holders are spaced apart in the vertical direction, and the warp openings are opened by switching the warp holders in the vertical direction. The annular loom according to claim 1.   The warp holders of the first group and the warp holders of the second group are arranged at intervals in the horizontal direction, and the warp openings are opened by replacing the warp holders in the horizontal direction. The annular loom according to claim 1.

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