CN108203857B - Weft insertion nozzle of water jet loom - Google Patents
Weft insertion nozzle of water jet loom Download PDFInfo
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- CN108203857B CN108203857B CN201710858763.3A CN201710858763A CN108203857B CN 108203857 B CN108203857 B CN 108203857B CN 201710858763 A CN201710858763 A CN 201710858763A CN 108203857 B CN108203857 B CN 108203857B
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- joint
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- link
- flow path
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/32—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by liquid jet
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Abstract
The invention provides a weft insertion nozzle of a water jet loom. The trouble of the component replacement operation is suppressed. The weft insertion nozzle (10) is provided with a first joint (61), wherein the first joint (61) is inserted into the first nozzle body (21) and is provided with a first joint inner flow path (61e) which connects the first nozzle connector inner flow path (31d) and the first nozzle inner flow path (21 d). The weft insertion nozzle (10) is provided with a second joint (62), wherein the second joint (62) is inserted into the second nozzle body (22) and is provided with a second joint inner flow path (62e) which connects the second nozzle connector inner flow path (32d) and the second nozzle inner flow path (22 d).
Description
Technical Field
The invention relates to a weft insertion nozzle of a water jet loom.
Background
In the water jet loom, a pump pressurizes and sends water, and the water is jetted from a weft insertion nozzle to insert a weft yarn into a warp yarn opening.
For example, as shown in fig. 7, the weft insertion nozzle of patent document 1 includes: a cylindrical nozzle body 101, an extension portion 102 formed integrally with the nozzle body 101, and a pipe 104 connected to the extension portion 102 via a pipe joint 103. The extension 102 extends in a direction orthogonal to the axial direction of the nozzle body 101. The extension part 102 has a first water supply path 102 a. The pipe joint 103 has a second water supply path 103a communicating with the first water supply path 102 a.
The end of the pipe 104 is coupled to the pipe joint 103 in a state inserted inside the pipe joint 103. Further, the pipe 104 is supported by the nozzle link 106 by attaching the pipe joint 103 to the nozzle link 106 via the bolt 105. Then, in a state where the pipe joint 103 is inserted into the extension portion 102, the bolt 107 penetrating the extension portion 102 is screwed to the nozzle link 106, and thereby the nozzle body 101 is attached to the nozzle link 106. Thus, the nozzle body 101 is directly connected to the pipe joint 103.
A needle 108 is inserted into the nozzle body 101. The nozzle body 101 and the needle 108 cooperatively form: an annular groove 109 extending along the periphery of the needle 108 and communicating with the first water supply path 102a, an annular chamber 110 located on the downstream side in the water flow direction of the annular groove 109, and a plurality of water supply holes 111 communicating the annular groove 109 and the annular chamber 110. A commutator 112 is disposed in the annular chamber 110. The commutator 112 has a through hole 112 a. The needle 108 passes through the inside of the through hole 112 a. An acceleration flow path (orifice flow path) is formed between the inner peripheral surface of the through hole 112a and the outer peripheral surface of the needle 108, and the flow path cross-sectional area decreases toward the downstream side, so that the high-pressure water flow is concentrated and accelerated.
Water pumped by a pump not shown flows into the pipe 104. The water flowing through the pipe 104 is supplied to the first water supply path 102a through the second water supply path 103a, and the water supplied to the first water supply path 102a is ejected from the nozzle main body 101 together with the weft yarn through the annular groove 109, the plurality of water supply holes 111, the annular cavity 110, and the through hole 112 a. The ejected weft yarn flies in the warp yarn openings due to the water flow. Thereby, the weft yarn is inserted into the warp yarn opening.
However, since a weft insertion failure may occur when foreign matter is accumulated in the nozzle body 101, the inside of the nozzle body 101 is cleaned by detaching the bolt 107 and detaching the extension 102 from the nozzle link 106 while pulling out the extension 102 from the pipe joint 103.
Patent document 1: japanese patent laid-open publication No. 2005-163235
As described above, in the weft insertion nozzle of patent document 1, the nozzle body 101 is directly connected to the pipe joint 103. Therefore, when the nozzle body 101 is detached from the nozzle link 106 in order to clean the inside of the nozzle body 101, the extension 102 is detached from the nozzle link 106 while the extension 102 is pulled out of the pipe joint 103. After cleaning the inside of the nozzle body 101, when the nozzle body 101 is attached to the nozzle link 106 again, the nozzle body 101 is attached to the nozzle link 106 while inserting the pipe joint 103 into the extension 102. As described above, when the attachment and detachment work of the nozzle body 101 to and from the nozzle link 106 is repeated, the pipe joint 103 may be damaged. If the pipe joint 103 is damaged, water may leak, and therefore, the pipe joint 103 needs to be replaced, but if the pipe joint 103 needs to be replaced, the pipe 104 connected to the pipe joint 103 needs to be replaced, and thus, the component replacement operation is troublesome.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object thereof is to provide a weft insertion nozzle of a water jet loom capable of suppressing the trouble of the part replacement work.
The weft insertion nozzle of a water jet loom for solving the above problems includes: a nozzle body having an internal nozzle flow path; a nozzle link to which the nozzle body is mounted and having a nozzle link inner flow path; a pipe joint mounted to the nozzle link and having an interior communicating with the internal flow path of the nozzle link; a pipe coupled with the pipe joint; and a joint member inserted into the nozzle body and having an in-joint flow passage connecting the nozzle link inner flow passage and the nozzle inner flow passage.
By adopting the weft insertion nozzle, the nozzle main body and the pipe joint do not need to be directly connected. For example, when the nozzle body is detached from the nozzle link in order to clean the inside of the nozzle body, the insertion state of the engagement member into the nozzle body is released, and the nozzle body is detached from the nozzle link. After cleaning the inside of the nozzle body, when the nozzle body is attached to the nozzle link again, the joint is inserted into the nozzle body, and the nozzle body is attached to the nozzle link. Thus, even if the attachment and detachment work of the nozzle body to and from the nozzle link is repeated, the joint member may be damaged, but the pipe joint attached to the nozzle link is not damaged. Thus, it is not necessary to replace the pipe joint, nor the pipe combined with the pipe joint. Therefore, even if the joint is damaged, only the joint needs to be replaced, and the trouble of the part replacement operation can be suppressed.
In the weft insertion nozzle of the water jet loom, it is preferable that the nozzle body has a needle insertion hole into which a needle for guiding a weft is inserted, and an insertion direction of the fastener into the nozzle body intersects with an axial direction of the nozzle body when an extending direction of the needle insertion hole is set to the axial direction of the nozzle body. Thus, for example, the structure of the flow path in the nozzle can be simplified as compared with a case where the insertion direction of the joint into the nozzle body is parallel to the axial direction of the nozzle body.
In the weft insertion nozzle of the water jet loom, it is preferable that the nozzle unit includes the nozzle body, the nozzle link, the pipe joint, the pipe, and the joint.
In each nozzle unit, when the nozzle body is detached from the nozzle link in order to clean the inside of the nozzle body, for example, the joint is pulled out from the nozzle body, and the nozzle body is detached from the nozzle link. Accordingly, the direction of separating the nozzle body from the nozzle link is not limited to the insertion direction of the coupling piece into the nozzle body, and the nozzle bodies of the plurality of nozzle units do not interfere with each other when the nozzle bodies are separated from the nozzle link. Therefore, the attachment and detachment work of the nozzle main bodies of the plurality of nozzle units to and from the nozzle link can be performed individually.
In the weft insertion nozzle of the water jet loom, it is preferable that the two nozzle units are provided, and insertion directions of the joint into the nozzle body between the two nozzle units are opposite to each other.
If the insertion directions of the engaging pieces into the nozzle bodies are opposite to each other between the two nozzle units, the two nozzle bodies interfere with each other if the nozzle bodies are moved in the insertion direction of the engaging pieces. Therefore, the detachment direction in which the nozzle link is detached from the nozzle body by pulling the engaging piece out of the nozzle body before moving the nozzle body is not limited to the insertion direction in which the engaging piece is inserted into the nozzle body, and therefore, when detaching the nozzle body from the nozzle link, the two nozzle bodies do not interfere with each other. Therefore, even if the insertion directions of the fasteners into the nozzle bodies are opposite to each other between the two nozzle units, the attachment and detachment work of the nozzle bodies of the plurality of nozzle units to and from the nozzle link can be performed independently.
According to the present invention, the trouble of the component replacement operation can be suppressed.
Drawings
Fig. 1 is a perspective view showing a weft insertion nozzle of a water jet loom according to an embodiment.
Fig. 2 is a side sectional view of the weft insertion nozzle.
Fig. 3 is a sectional view taken along line 3-3 of fig. 2.
Fig. 4 is a side sectional view showing a state where the second nozzle body is detached from the second nozzle link.
Fig. 5 is a top sectional view of a weft insertion nozzle in another embodiment.
Fig. 6 is a side sectional view of a weft insertion nozzle in another embodiment.
Fig. 7 is a cross-sectional view showing a weft insertion nozzle in the conventional example.
Description of the reference numerals
10 … weft insertion nozzle; 11 … as a first nozzle unit of the nozzle units; 12 … as a second nozzle unit of the nozzle units; 17 … needles; 21 … a first nozzle body being a nozzle body; 21b, 22b … needle insertion holes; 21d … as a first nozzle inner flow path; 22 … as a second nozzle body of the nozzle body; 22d … as a second nozzle internal flow path; 31 … as a first nozzle link of the nozzle links; 31d … nozzle link inner flow path, i.e., a first nozzle link inner flow path; 32 … as a second nozzle link of the nozzle link; 32d … nozzle link internal flow path, i.e., a second nozzle link internal flow path; 41 … a first pipe joint as the pipe joint; 42 … a second pipe joint as the pipe joint; 51 … as a first tube of tubes; 52 … as a second tube of tubes; 61 … as a first engagement member of the engagement members; 61e … as a first intra-joint flow path of the intra-joint flow paths; 62 … as a second engagement member; 62e … serves as a second intra-joint flow path of the intra-joint flow paths.
Detailed Description
An embodiment embodying the weft insertion nozzle of the water jet loom will be described below with reference to fig. 1 to 6.
As shown in fig. 1, a weft insertion nozzle 10 of a water jet loom includes a first nozzle unit 11 and a second nozzle unit 12 as nozzle units. Thus, the weft insertion nozzle 10 includes a plurality of nozzle units, and in the present embodiment, includes two nozzle units. The first nozzle unit 11 and the second nozzle unit 12 are arranged in parallel in the moving direction of the warp W, supporting weft insertion of a plurality of colors.
The first nozzle unit 11 has a first nozzle body 21 as a nozzle body, a first nozzle link 31 as a nozzle link, a first pipe joint 41 as a pipe joint, a first pipe 51 as a pipe, and a first joint member 61 as a joint member. The second nozzle unit 12 has a second nozzle body 22 as a nozzle body, a second nozzle link 32 as a nozzle link, a second pipe joint 42 as a pipe joint, a second pipe 52 as a pipe, and a second joint member 62 as a joint member.
The first nozzle link 31 and the second nozzle link 32 are respectively blocks. The first nozzle link 31 is mounted to the first nozzle adjusting part 13 a. The second nozzle link 32 is mounted to the second nozzle adjusting part 13 b. The first nozzle regulator 13a and the second nozzle regulator 13b are mounted to the frame 14. The mounting angle at which the first nozzle link 31 is mounted with respect to the first nozzle regulator 13a can be adjusted. The mounting angle at which the second nozzle link 32 is mounted with respect to the second nozzle adjusting piece 13b can be adjusted.
Next, the structure of the first nozzle unit 11 will be described in detail.
As shown in fig. 2, the first nozzle link 31 has a first mounting surface 31a to which the first nozzle body 21 is mounted, a first mounting hole 31b to which the first pipe joint 41 is mounted, and a first joint member insertion hole 31c into which the first joint member 61 is inserted.
The first mounting surface 31a is a flat surface extending horizontally. The first mounting face 31a is continuous with the side faces 311 of the first nozzle link 31 that make the first nozzle link 31 and the second nozzle link 32 face each other in the juxtaposed direction X1 of the first nozzle link 31 and the second nozzle link 32. The side surface 311 extends in the up-down direction Y1 which is a direction orthogonal to the parallel direction X1.
The first nozzle link 31 has an inclined surface 312, and the inclined surface 312 is continuous with the side surface 311 on the side opposite to the first mounting surface 31 a. The inclined surface 312 is inclined so as to gradually come closer to the second nozzle unit 12 side in the merging direction X1 as it goes from the side surface 311 to the opposite side away from the first mounting surface 31 a. Also, the first nozzle link 31 has an opening side surface 313, and the opening side surface 313 is continuous to the opposite side of the same side surface 311 of the inclined surface 312. The opening side surface 313 is inclined so as to gradually come closer to the side opposite to the second nozzle unit 12 in the juxtaposition direction X1 as it goes away from the inclined surface 312. The first mounting hole 31b forms an opening in the opening side surface 313. The first mounting hole 31b is a female screw hole extending in a state inclined with respect to the parallel direction X1.
The first pipe joint 41 has a cylindrical shape. A male screw 41a is formed on the outer peripheral surface of one end portion of the first pipe joint 41. Further, the male screw 41a is screw-fitted to the first mounting hole 31b, whereby the first pipe joint 41 is mounted to the first mounting hole 31 b. The interior of the first pipe joint 41 communicates with the first mounting hole 31 b.
One end of the first pipe 51 is inserted into the other end of the first pipe joint 41, and is joined to the first pipe joint 41 by, for example, welding. The first pipe 51 extends with one end portion inclined with respect to the juxtaposition direction X1, thereby avoiding interference with the second nozzle link 32. The other end of the first pipe 51 is connected to a pump, not shown, and water is supplied from the pump into the first pipe 51.
A seal member 311b that suppresses water leakage from between the inner circumferential surface of the first mounting hole 31b and the outer circumferential surface of the first pipe joint 41 to the outside is provided on the inner circumferential surface of the first mounting hole 31 b.
The first nozzle link 31 has a side surface 314, and the side surface 314 is continuous with an edge portion of the first mounting surface 31a on the side opposite to the side surface 311. The side surface 314 extends in the up-down direction Y1.
The first joint member insertion hole 31c extends from the side surface 315 located on the opposite side from the second nozzle link 32 in the juxtaposition direction X1 in the juxtaposition direction X1 to penetrate to the side surface 314. Thereby, both ends of the first engaging piece insertion hole 31c are opened at both side surfaces 314, 315. An end portion of the inner peripheral surface of the first engaging member insertion hole 31c on the side of the side surface 315 serves as a female screw hole 311 c.
The first nozzle link 31 has a first nozzle link inner flow path 31d which is a nozzle link inner flow path. The first nozzle link inner passage 31d is constituted by the first mounting hole 31b, the first communication passage 311d communicating with the first mounting hole 31b, the second communication passage 312d communicating with the first joint insertion hole 31c, and the first joint insertion hole 31 c. One end of the first communication passage 311d communicates with the first mounting hole 31b, and the other end of the first communication passage 311d communicates with the second communication passage 312 d. The first communication path 311d extends in the same direction as the first mounting hole 31 b. Therefore, the first communication path 311d extends in a state of being inclined with respect to the parallel direction X1. The second communication path 312d is a hole that is formed to penetrate the first joint insertion hole 31c so as to extend in the vertical direction Y1 from the lower surface 316, which is the surface of the first nozzle link 31 located on the opposite side to the first joint insertion hole 31c in the vertical direction Y1. One end of the second communicating path 312d communicates with the first joint insertion hole 31 c. The other end of the second communication passage 312d is closed by a seal plug 313 d.
The first engaging member 61 is a shaft member. The first engaging piece 61 is inserted into the first engaging piece insertion hole 31c from the opening on the side surface 315 side. The first engaging member 61 has: a shaft portion 61a disposed in the first joint insertion hole 31 c; and a cylindrical insertion portion 61b continuous with the shaft portion 61a and protruding from an opening of the first joint insertion hole 31c on the side of the side surface 314. A male screw 61c that is screwed into the female screw hole 311c is formed on the outer peripheral surface of the end portion of the shaft portion 61a opposite to the insertion portion 61 b. The first joint 61 is attached to the first nozzle link 31 in a state inserted into the first joint insertion hole 31c by screwing the external thread 61c into the internal thread hole 311 c. An annular recess 61d is formed in a portion of the outer peripheral surface of the shaft portion 61a that faces one end of the second communication passage 312 d.
The first joint 61 has a first joint inner flow path 61e as a joint inner flow path. The first joint internal flow path 61e is constituted by a plurality of holes 61f penetrating in the recess 61d in a direction orthogonal to the axial direction of the first joint 61 and an in-shaft passage 61g extending in the axial direction of the first joint 61. One end of the in-shaft passage 61g is open at the tip end of the insertion portion 61b, and the other end communicates with the plurality of holes 61 f.
A seal member 312c is provided between a portion of the outer peripheral surface of the shaft portion 61a on the male thread 61c side of the recess 61d and the inner peripheral surface of the first joint insertion hole 31 c. A seal member 313c is provided between a portion of the outer peripheral surface of the shaft portion 61a closer to the insertion portion 61b than the recess portion 61d and the inner peripheral surface of the first joint insertion hole 31 c.
The first nozzle body 21 is attached to the first attachment surface 31a by a plurality of (two in the present embodiment) bolts 15. The first nozzle body 21 has a needle insertion hole 21b, an insertion hole 21a into which the insertion portion 61b is inserted, and an internal flow passage 21c that communicates the insertion hole 21a and the needle insertion hole 21 b. The internal flow path 21c and the needle insertion hole 21b constitute a first nozzle internal flow path 21d as a nozzle internal flow path. Therefore, the first nozzle internal flow path 21d includes the needle insertion hole 21 b.
The internal passage 21c connects the shaft internal passage 61g and the needle insertion hole 21 b. Thereby, the internal flow path 21c connects the first joint internal flow path 61e and the needle insertion hole 21 b. A seal member 21s is provided between the inner peripheral surface of the insertion hole 21a and the outer peripheral surface of the insertion portion 61 b.
The internal flow path 21c extends in the same direction as the insertion hole 21 a. The needle insertion hole 21b extends in a direction orthogonal to the internal flow path 21 c. When the extending direction of the needle insertion hole 21b is set to the axial direction of the first nozzle body 21, the insertion direction of the insertion portion 61b of the first joint member 61 into the insertion hole 21a is orthogonal to the axial direction of the first nozzle body 21.
Next, the structure of the second nozzle unit 12 will be described in further detail.
The second nozzle link 32 has: a second mounting surface 32a to which the second nozzle body 22 is mounted; a second fitting hole 32b for fitting the second pipe joint 42; and a second engaging piece insertion hole 32c into which the second engaging piece 62 is inserted.
The second mounting surface 32a is a flat surface extending horizontally. The second mounting surface 32a is located at the same position (height) as the first mounting surface 31a in the vertical direction Y1. The second mounting face 32a is continuous with the side face 321 of the second nozzle link 32 that makes the first nozzle link 31 and the second nozzle link 32 face each other in the juxtaposed direction X1. The side surface 321 extends in the up-down direction Y1.
The second mounting hole 32b opens at a side surface 322 of the second nozzle link 32 on the opposite side from the first nozzle link 31 in the juxtaposition direction X1. The second mounting hole 32b is an internally threaded hole extending in the juxtaposition direction X1.
The second pipe joint 42 is cylindrical. A male screw 42a is formed on the outer peripheral surface of one end portion of the second pipe joint 42. Then, the second pipe joint 42 is attached to the second attachment hole 32b by screwing the male screw 42a into the second attachment hole 32 b. The interior of the second pipe joint 42 communicates with the second mounting hole 32 b.
One end portion of the second pipe 52 is inserted into the other end portion of the second pipe joint 42, and is joined to the second pipe joint 42 by, for example, welding. The second pipe 52 extends in the juxtaposition direction X1 to the side opposite the first nozzle link 31. The other end of the second pipe 52 is connected to a pump, not shown, and water is supplied from the pump into the second pipe 52.
A seal member 321b for suppressing water leakage from between the inner circumferential surface of the second mounting hole 32b and the outer circumferential surface of the second pipe joint 42 to the outside is provided on the inner circumferential surface of the second mounting hole 32 b.
The second nozzle link 32 has a side surface 323, and the side surface 323 is continuous with an edge portion on the opposite side of the second mounting face 32a from the side surface 321. The side surface 323 extends in the up-down direction Y1. The second nozzle link 32 has a side surface 324, and the side surface 324 is located on the opposite side to the side surface 323 in the juxtaposition direction X1. The side surface 324 is located at a position closer to the first nozzle link 31 than the side surface 322 in which the second mounting hole 32b forms an opening in the juxtaposition direction X1.
The second engaging piece insertion hole 32c extends in the parallel direction X1 from the side surface 323 in the parallel direction X1 to penetrate to the side surface 324. Thereby, both ends of the second engaging piece insertion hole 32c are opened at both side surfaces 323, 324. An end portion of the inner peripheral surface of the second engaging piece insertion hole 32c on the side of the side surface 324 becomes a female screw hole 321 c.
The second nozzle link 32 has a second nozzle link inner flow path 32 d. The second nozzle link inner flow path 32d is constituted by the second mounting hole 32b, the first communication passage 321d communicating with the second mounting hole 32b, the second communication passage 322d communicating with the second joint insertion hole 32c, and the second joint insertion hole 32 c. One end of the first communication passage 321d communicates with the second mounting hole 32b, and the other end of the first communication passage 321d communicates with the second communication passage 322 d. The first communication passage 321d extends in the same direction as the second mounting hole 32 b. Therefore, the first communicating path 321d extends in the juxtaposition direction X1. The second communication path 322d is a hole that is formed to penetrate the second joint insertion hole 32c so as to extend in the vertical direction Y1 from the lower surface 325 that is the surface of the second nozzle link 32 located on the opposite side to the second joint insertion hole 32c in the vertical direction Y1. One end of the second communication path 322d communicates with the second joint insertion hole 32 c. The other end of the second communication passage 322d is closed by a seal plug 323 d.
The second engaging member 62 is a shaft member. The second engaging piece 62 is inserted into the second engaging piece insertion hole 32c from the opening on the side of the side surface 324. The second engaging member 62 has: a shaft portion 62a disposed in the second joint insertion hole 32 c; and a cylindrical insertion portion 62b continuous with the shaft portion 62a and protruding from an opening of the second joint insertion hole 32c on the side of the side surface 323. A male screw 62c that is screwed into the female screw hole 321c is formed on the outer peripheral surface of the end portion of the shaft portion 62a opposite to the insertion portion 62 b. The external thread 62c is screwed into the internal thread hole 321c, whereby the second joint member 62 is attached to the second nozzle link 32 in a state of being inserted into the second joint member insertion hole 32 c. An annular recess 62d is formed in a portion of the outer peripheral surface of the shaft portion 62a that faces one end of the second communication passage 322 d.
The second joint 62 has a second joint inner flow path 62e as a joint inner flow path. The second joint internal flow path 62e is constituted by a plurality of holes 62f penetrating in the recess 62d in a direction orthogonal to the axial direction of the second joint 62 and an in-shaft passage 62g extending in the axial direction of the second joint 62. One end of the in-shaft passage 62g is open at the tip end of the insertion portion 62b, and the other end communicates with the plurality of holes 62 f.
A seal member 322c is provided between a portion of the outer peripheral surface of the shaft portion 62a closer to the external thread 62c than the recess 62d and the inner peripheral surface of the second joint insertion hole 32 c. A seal member 323c is provided between the portion of the outer peripheral surface of the shaft portion 62a closer to the insertion portion 62b than the recess 62d and the inner peripheral surface of the second joint insertion hole 32 c.
The second nozzle body 22 is attached to the second attachment surface 32a by a plurality of (two in the present embodiment) bolts 16. The second nozzle body 22 has a needle insertion hole 22b, an insertion hole 22a into which the insertion portion 62b is inserted, and an internal flow passage 22c that communicates the insertion hole 22a and the needle insertion hole 22 b. The internal flow path 22c and the needle insertion hole 22b constitute a second nozzle internal flow path 22d as an internal nozzle flow path. Therefore, the second nozzle internal flow path 22d includes the needle insertion hole 22 b.
The internal passage 22c connects the shaft internal passage 62g and the needle insertion hole 22 b. Thus, the internal flow path 22c connects the second joint internal flow path 62e and the needle insertion hole 22 b. A seal member 22s is provided between the inner peripheral surface of the insertion hole 22a and the outer peripheral surface of the insertion portion 62 b.
The internal flow path 22c extends in the same direction as the insertion hole 22 a. The needle insertion hole 22b extends in a direction orthogonal to the internal flow path 22 c. If the extending direction of the needle insertion hole 22b is set to the axial direction of the second nozzle body 22, the insertion direction of the insertion portion 62b of the second joint member 62 into the insertion hole 22a is orthogonal to the axial direction of the second nozzle body 22. Between the first nozzle unit 11 and the second nozzle unit 12, an insertion direction in which the insertion portion 61b of the first joint member 61 is inserted into the insertion hole 21a of the first nozzle body 21 and an insertion direction in which the insertion portion 62b of the second joint member 62 is inserted into the insertion hole 22a of the second nozzle body 22 are opposed to each other.
Next, the internal structure of each needle insertion hole 21b, 22b will be described.
As shown in fig. 3, needles 17 for guiding the weft yarn Y are respectively accommodated in the needle insertion holes 21b and 22 b. The needle 17 has a thread guide hole 17a for guiding the weft thread Y. From one end to the other end, the needle 17 has a flange 17b, a male screw portion 17c, a large diameter portion 17d, a small diameter portion 17e, a plurality of support portions 17f, and a needle portion 17 g. The needles 17 are attached to the needle insertion holes 21b and 22b by screwing the male screw portions 17c into the female screw holes 211b and 221b formed in the needle insertion holes 21b and 22b, respectively. A seal member 17s is provided between each large-diameter portion 17d and each needle insertion hole 21b, 22 b.
The plurality of support portions 17f radially extend around the axis of the needle 17. The adjacent plurality of support portions 17f form a water supply hole 170 therebetween. Annular water supply paths 171 are formed between the outer peripheral surface of each small diameter portion 17e and the inner peripheral surfaces of the needle insertion holes 21b and 22b, respectively. The water supply paths 171 communicate with the internal flow paths 21c and 22 c. In addition, annular flow straightening members 18 are housed around the needle portions 17g in the needle insertion holes 21b and 22b, respectively. The flow straightening member 18 has radial fins 18a extending toward the outer peripheral surface of the needle portion 17 g.
Further, a tubular cover member 19 is housed in each of the needle insertion holes 21b and 22b at a portion downstream of the flow straightening member 18 in the water flow direction. The tip of the needle 17g passes through the inside of the cover member 19. The inner diameter of the inner peripheral surface of the cover member 19 decreases toward the downstream side. An annular nozzle hole 19a is formed between the inner peripheral surface of the cover member 19 and the outer peripheral surface of the needle portion 17 g.
The water supplied to the first pipe 51 flows from the inside of the first pipe 51 through the inside of the first pipe joint 41 along the first mounting hole 31b, the first communication passage 311d, the second communication passage 312d, and the first joint insertion hole 31c constituting the first nozzle link inner flow passage 31 d. The water flowing out into the first joint insertion hole 31c flows out to the internal flow path 21c constituting the first nozzle internal flow path 21d via the plurality of holes 61f constituting the first joint internal flow path 61e and the axial internal passage 61g, and is supplied to the water supply path 171 of the needle insertion hole 21b via the internal flow path 21 c. Thereby, the first joint inner flow path 61e connects the first nozzle link inner flow path 31d and the first nozzle inner flow path 21 d. The water supplied to the water supply path 171 passes through the plurality of water supply holes 170 and is rectified by the plurality of fins 18a of the rectifying member 18, and then is ejected from the first nozzle body 21 together with the weft yarn Y while being concentrated and accelerated by the nozzle holes 19 a. The ejected weft yarn Y flies in the warp yarn opening W1. Thereby, the weft yarn Y is inserted into the warp yarn opening W1.
The water supplied to the second pipe 52 flows from the inside of the second pipe 52 through the inside of the second pipe joint 42 along the second mounting hole 32b, the first communication passage 321d, the second communication passage 322d, and the second joint insertion hole 32c constituting the second nozzle link inner flow passage 32 d. The water flowing out into the second joint insertion hole 32c flows out to the internal flow path 22c constituting the second nozzle internal flow path 22d via the plurality of holes 62f constituting the second joint internal flow path 62e and the axial internal passage 62g, and is supplied to the water supply path 171 of the needle insertion hole 22b via the internal flow path 22 c. Thereby, the second joint inner flow path 62e connects the second nozzle link inner flow path 32d and the second nozzle inner flow path 22 d. The water supplied to the water supply path 171 passes through the plurality of water supply holes 170 and is rectified by the plurality of fins 18a of the rectifying member 18, and then is ejected from the second nozzle body 22 together with the weft yarn Y while being concentrated and accelerated by the nozzle holes 19 a. The ejected weft yarn Y flies in the warp yarn opening W1. Thereby, the weft yarn Y is inserted into the warp yarn opening W1. In this way, weft insertion of a plurality of colors is performed by the weft insertion nozzle 10 of the present embodiment.
Next, the operation of the present embodiment will be described.
As shown in fig. 4, for example, when foreign matter is accumulated in the second nozzle main body 22, the second nozzle main body 22 is detached from the second nozzle link 32 to clean the inside of the second nozzle main body 22. When the second nozzle body 22 is detached from the second nozzle link 32, first, the plurality of bolts 16 are detached. Subsequently, the male screw 62c is rotated and withdrawn with respect to the female screw hole 321c, and the second engaging member 62 is pulled out from the second engaging member insertion hole 32 c. Thus, the insertion portion 62b of the second joint member 62 is pulled out from the insertion hole 22a, and the insertion state of the insertion portion 62b into the insertion hole 22a is released, so that the second nozzle body 22 can be detached from the second nozzle link 32.
At this time, the detaching direction of the second nozzle body 22 from the second nozzle link 32 is not limited to the inserting direction in which the insertion portion 62b of the second joint member 62 is inserted into the insertion hole 22a of the second nozzle body 22. Thus, when the second nozzle body 22 is detached from the second nozzle link 32, the second nozzle body 22 does not interfere with the first nozzle body 21.
After the second nozzle body 22 is cleaned, when the second nozzle body 22 is attached to the second nozzle link 32 again, the second nozzle body 22 is arranged on the second attachment surface 32a, and the second joint member 62 is inserted into the second joint member insertion hole 32c so that the insertion portion 62b of the second joint member 62 is inserted into the insertion hole 22 a. Further, the second nozzle body 22 is attached to the second attachment surface 32a by attaching the second nozzle body 22 to the second nozzle link 32 via the plurality of bolts 16.
In the above embodiment, the following effects can be obtained.
(1) The weft insertion nozzle 10 includes a first joint 61, and the first joint 61 is inserted into the first nozzle body 21 and connects the first nozzle link inner flow path 31d and the first nozzle inner flow path 21 d. The weft insertion nozzle 10 further includes a second joint 62, and the second joint 62 is inserted into the second nozzle body 22 and connects the second nozzle link inner flow path 32d and the second nozzle inner flow path 22 d. Thus, there is no need to directly connect the first nozzle body 21 and the first pipe joint 41, and there is no need to directly connect the second nozzle body 22 and the second pipe joint 42. Even if the work of attaching and detaching the first nozzle body 21 to and from the first nozzle link 31 and the work of attaching and detaching the second nozzle body 22 to and from the second nozzle link 32 are repeated, the first pipe joint 41 and the second pipe joint 42 are not damaged although the first joint member 61 and the second joint member 62 may be damaged. Thus, it is not necessary to replace the first pipe joint 41 and the second pipe joint 42, and it is not necessary to replace the first pipe 51 coupled to the first pipe joint 41 and the second pipe 52 coupled to the second pipe joint 42. Therefore, even if the first engaging member 61 and the second engaging member 62 are injured, since only the first engaging member 61 and the second engaging member 62 need to be replaced, it is possible to suppress the trouble of the component replacement work.
(2) For example, a case where the insertion direction of the first joint 61 into the first nozzle body 21 is parallel to the axial direction of the first nozzle body 21 or the insertion direction of the second joint 62 into the second nozzle body 22 is parallel to the axial direction of the second nozzle body 22 is considered. In this case, the internal flow path 21c of the first nozzle body 21 that connects the first joint internal flow path 61e and the needle insertion hole 21b must be formed so as to extend in a direction intersecting the insertion direction of the first joint 61 into the first nozzle body 21 and the axial direction of the first nozzle body 21. Similarly, the internal flow passage 22c of the second nozzle body 22, which connects the second joint internal flow passage 62e and the needle insertion hole 22b, must be formed so as to extend in a direction intersecting the insertion direction of the second joint 62 into the second nozzle body 22 and the axial direction of the second nozzle body 22. This complicates the structures of the first nozzle internal flow passage 21d of the first nozzle body 21 and the second nozzle internal flow passage 22d of the second nozzle body 22.
Therefore, in the present embodiment, the insertion direction of the first joint 61 into the first nozzle body 21 is orthogonal to the axial direction of the first nozzle body 21, and the insertion direction of the second joint 62 into the second nozzle body 22 is orthogonal to the axial direction of the second nozzle body 22. Thus, the internal flow passage 21c of the first nozzle body 21 connecting the first joint internal flow passage 61e and the needle insertion hole 21b can be formed in the same direction as the insertion direction of the first joint 61 into the first nozzle body 21. Further, the internal flow path 22c of the second nozzle body 22 connecting the second joint internal flow path 62e and the needle insertion hole 22b can be formed in the same direction as the insertion direction of the second joint 62 into the second nozzle body 22. This can simplify the structures of the first nozzle internal flow passage 21d of the first nozzle main body 21 and the second nozzle internal flow passage 22d of the second nozzle main body 22.
(3) The weft insertion nozzle 10 includes a first nozzle unit 11 and a second nozzle unit 12. In the first nozzle unit 11 and the second nozzle unit 12, when the second nozzle body 22 is detached from the second nozzle link 32 in order to clean the inside of the second nozzle body 22, the second joint member 62 is pulled out from the second nozzle body 22, and the second nozzle body 22 is detached from the second nozzle link 32. Accordingly, the detaching direction of the second nozzle body 22 from the second nozzle link 32 is not limited to the inserting direction of the second joint member 62 into the second nozzle body 22, and does not interfere with the first nozzle body 21 of the first nozzle unit 11 when detaching the second nozzle body 22 from the second nozzle link 32. Therefore, the work of attaching and detaching the first nozzle body 21 to and from the first nozzle link 31 and the work of attaching and detaching the second nozzle body 22 to and from the second nozzle link 32 can be performed independently.
(4) When the insertion direction of the first joint 61 into the first nozzle body 21 and the insertion direction of the second joint 62 into the second nozzle body 22 are opposed to each other between the first nozzle unit 11 and the second nozzle unit 12, for example, when the second nozzle body 22 is moved in the insertion direction of the second joint 62, the second nozzle body 22 interferes with the first nozzle body 21. Therefore, the direction of disengagement of the second nozzle main body 22 from the second nozzle link 32 by pulling out the second engaging piece 62 from the second nozzle main body 22 before moving the second nozzle main body 22 is not limited to the direction of insertion of the second engaging piece 62 into the second nozzle main body 22. Therefore, when the second nozzle body 22 is detached from the second nozzle link 32, the second nozzle body 22 does not interfere with the first nozzle body 21. Therefore, even if the insertion direction of the first joint member 61 into the first nozzle body 21 and the insertion direction of the second joint member 62 into the second nozzle body 22 are opposed to each other between the first nozzle unit 11 and the second nozzle unit 12, the attachment and detachment work of the first nozzle body 21 to the first nozzle link 31 can be performed independently. Similarly, the second nozzle main body 22 can be attached to and detached from the second nozzle link 32 alone.
The above embodiment may be modified as follows.
○, as shown in fig. 5, the insertion direction of the first joint 61 into the first nozzle body 21 may be parallel to the axial direction of the first nozzle body 21, and the insertion direction of the second joint 62 into the second nozzle body 22 may be parallel to the axial direction of the second nozzle body 22.
The internal flow passage 21c of the first nozzle body 21 connecting the first joint internal flow passage 61e and the needle insertion hole 21b extends in a direction intersecting the direction of insertion of the first joint 61 into the first nozzle body 21 and the axial direction of the first nozzle body 21. The internal flow passage 22c of the second nozzle body 22 connecting the second joint internal flow passage 62e and the needle insertion hole 22b extends in a direction intersecting the direction of insertion of the second joint 62 into the second nozzle body 22 and the axial direction of the second nozzle body 22.
In the embodiment shown in fig. 5, for example, the second nozzle body 22 can be detached from the second nozzle link 32 without interference between the second nozzle body 22 and the first nozzle body 21 by removing the plurality of bolts 16 and moving the second nozzle body 22 in the insertion direction in which the second joint member 62 is inserted into the second nozzle body 22. Therefore, when the second nozzle main body 22 is detached from the second nozzle link 32, the second engaging piece 62 does not need to be pulled out from the second nozzle link 32.
○, as shown in fig. 6, the insertion direction of the first joint 61 into the first nozzle body 21 may be aligned with the vertical direction Y1, and the insertion direction of the second joint 62 into the second nozzle body 22 may be aligned with the vertical direction Y1.
The first joint 61 is inserted into the first nozzle body 21 so as to penetrate the first nozzle body 21 in the vertical direction Y1, and the tip end portion of the first joint 61 is inserted into the second communication passage 312 d. The in-shaft passage 61g communicates with the second communication passage 312 d. The plurality of holes 61f communicate with the internal flow path 21 c. A male screw 61A is formed on the outer peripheral surface of the distal end portion of the first engagement member 61. A female screw 313e to which the male screw 61A is screwed is formed on the inner peripheral surface of the second communication passage 312 d. The first joint member 61 is inserted into the first nozzle body 21, and the male screw 61A of the tip end portion of the first joint member 61 is screwed into the female screw 313e, whereby the first nozzle body 21 is attached to the first nozzle link 31. That is, in the embodiment shown in fig. 6, the first joint 61 functions as a mounting member for mounting the first nozzle body 21 to the first nozzle link 31.
Similarly, the second joint 62 is inserted into the second nozzle body 22 so as to penetrate the second nozzle body 22 in the vertical direction Y1, and the tip end portion of the second joint 62 is inserted into the second communication passage 322 d. The in-shaft passage 62g communicates with the second communication passage 322 d. The plurality of holes 62f communicate with the internal flow path 22 c. A male screw 62A is formed on the outer peripheral surface of the distal end portion of the second engagement member 62. A female screw 323e to which the male screw 62A is screwed is formed on the inner peripheral surface of the second communication passage 322 d. The second joint member 62 is inserted into the second nozzle main body 22, and the male screw 62A of the tip end portion of the second joint member 62 is screwed into the female screw 323e, whereby the second nozzle main body 22 is attached to the second nozzle link 32. That is, in the embodiment shown in fig. 6, the second joint member 62 functions as a mounting member for mounting the second nozzle main body 22 to the second nozzle link 32.
○ in the embodiment, the weft insertion nozzle 10 may be configured to include only one nozzle unit, or may be configured to include three or more nozzle units.
Claims (4)
1. A weft insertion nozzle of a water jet loom is characterized by comprising:
a nozzle body having an internal nozzle flow path;
a nozzle link to which the nozzle body is mounted and having a nozzle link inner flow path;
a pipe joint mounted to the nozzle link and having an interior communicating with the internal flow path of the nozzle link;
a pipe coupled with the pipe joint; and
and a joint member inserted into the nozzle body and having an in-joint flow path connecting the nozzle link inner flow path and the nozzle inner flow path.
2. The weft inserting nozzle of a water jet loom according to claim 1,
the nozzle body has a needle insertion hole into which a needle for guiding a weft yarn is inserted,
if the extending direction of the needle insertion hole is set to the axial direction of the nozzle body,
the insertion direction of the engaging piece into the nozzle body intersects with the axial direction.
3. The weft inserting nozzle of a water jet loom according to claim 1 or claim 2,
the nozzle unit includes the nozzle body, the nozzle link, the pipe joint, the pipe, and the joint.
4. The weft inserting nozzle of a water jet loom according to claim 3,
the nozzle unit is provided with two of the nozzle units,
between the two nozzle units, the insertion directions of the engaging pieces toward the nozzle body are opposed to each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-245820 | 2016-12-19 | ||
| JP2016245820A JP6747279B2 (en) | 2016-12-19 | 2016-12-19 | Water jet loom weft insertion nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108203857A CN108203857A (en) | 2018-06-26 |
| CN108203857B true CN108203857B (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858763.3A Active CN108203857B (en) | 2016-12-19 | 2017-09-21 | Weft insertion nozzle of water jet loom |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6747279B2 (en) |
| CN (1) | CN108203857B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624225A (en) * | 2003-12-04 | 2005-06-08 | 津田驹工业株式会社 | Filling insertion device of water-jet loom |
| CN103194846A (en) * | 2013-04-16 | 2013-07-10 | 苏州大学 | Master nozzle structure of jet-type textile machine and mounting method thereof |
| CN204023102U (en) * | 2014-08-10 | 2014-12-17 | 李樱桃 | Nozzle connection |
| KR101561599B1 (en) * | 2015-03-17 | 2015-10-20 | (주)세진산업기계 | Injection nozzle of water jet loom |
| CN106012247A (en) * | 2016-07-28 | 2016-10-12 | 吴江金叶织造有限公司 | Nozzle of water-jet loom |
-
2016
- 2016-12-19 JP JP2016245820A patent/JP6747279B2/en active Active
-
2017
- 2017-09-21 CN CN201710858763.3A patent/CN108203857B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624225A (en) * | 2003-12-04 | 2005-06-08 | 津田驹工业株式会社 | Filling insertion device of water-jet loom |
| CN103194846A (en) * | 2013-04-16 | 2013-07-10 | 苏州大学 | Master nozzle structure of jet-type textile machine and mounting method thereof |
| CN204023102U (en) * | 2014-08-10 | 2014-12-17 | 李樱桃 | Nozzle connection |
| KR101561599B1 (en) * | 2015-03-17 | 2015-10-20 | (주)세진산업기계 | Injection nozzle of water jet loom |
| CN106012247A (en) * | 2016-07-28 | 2016-10-12 | 吴江金叶织造有限公司 | Nozzle of water-jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6747279B2 (en) | 2020-08-26 |
| JP2018100454A (en) | 2018-06-28 |
| CN108203857A (en) | 2018-06-26 |
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