CN108691074B - Weft yarn detection device of air jet loom - Google Patents
Weft yarn detection device of air jet loom Download PDFInfo
- Publication number
- CN108691074B CN108691074B CN201810228675.XA CN201810228675A CN108691074B CN 108691074 B CN108691074 B CN 108691074B CN 201810228675 A CN201810228675 A CN 201810228675A CN 108691074 B CN108691074 B CN 108691074B
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- Prior art keywords
- weft
- reed
- contrast adjusting
- adjusting member
- air jet
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 72
- 230000037431 insertion Effects 0.000 claims abstract description 33
- 238000003780 insertion Methods 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/18—Automatic stop motions
- D03D51/34—Weft stop motions
-
- 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
- D03D47/30—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 gas jet
- D03D47/3066—Control or handling of the weft at or after arrival
- D03D47/3073—Detection means therefor
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/60—Construction or operation of slay
Abstract
The invention provides a weft yarn detection device of an air jet loom, which can accurately detect weft yarns. A weft detecting device for an air jet loom is provided with: a weft sensor (30) which is provided with a light projecting part projecting light into the reed passage (16) and a light receiving part arranged opposite to the reed passage (16); and a contrast adjustment member (40) disposed between adjacent dents (15) in the weft insertion direction. The thickness of the contrast adjusting member (40) is set to be larger than the separation distance of the adjacent reed dent (15) in the weft insertion direction.
Description
Technical Field
The present invention relates to a weft detecting device for an air jet loom in which weft is inserted through a reed passage.
Background
In an air jet loom, an optical weft yarn detecting device is provided to determine whether or not a weft yarn is properly inserted. The weft detecting device is installed on a slay, and a light projecting element of the weft detecting device projects light toward a weft inserted, and light reflected by contact with the weft is received by a light receiving element. For example, when a weft reaches the projection area of the light projecting element, the light receiving element receives reflected light from the weft and converts the reflected light into an electric signal, and the converted electric signal is sent to the control unit of the loom. When the converted electric signal is not sent to the control unit (when the weft does not reach the projection area of the light projecting element), the control unit of the loom determines that the weft insertion is defective and stops the operation of the loom.
However, in the optical weft detecting device, for example, in the case of a weft to be inserted being a black and thin yarn and the case of a white and thick yarn, a difference occurs in the light amount of reflected light, and in the case of a black and thin weft, the light amount of reflected light is insufficient, and detection of a weft is difficult. In order to reduce the influence of such detection due to the difference in the type of weft, a mirror (contrast adjusting member) may be disposed on the back surface of the flying weft (see patent document 1).
Patent document 1: japanese laid-open patent publication No. 8-127945
However, in patent document 1, although the mirror provided to improve the detection accuracy of the weft yarn is provided in the insertion member inserted into the reed, the insertion member is inserted from the reed into a space formed by a plurality of dents. Therefore, in the weft detecting device disclosed in patent document 1, the mirror is vibrated by the vibration of the reed dent caused by the beating-up operation of the insertion member, and erroneous detection or the like due to the vibration of the mirror is caused, and there is a possibility that the weft detection cannot be performed with high accuracy.
Disclosure of Invention
The invention aims to provide a weft yarn detection device of an air jet loom, which can accurately detect weft yarns.
A weft detecting device for an air jet loom for solving the above-described problems is a weft detecting device for an air jet loom including a reed provided with a plurality of rows of dents having guide recesses in a weft insertion direction, and in which a weft is inserted through an in-reed passage formed by the plurality of guide recesses by air injection, the weft detecting device including: a weft sensor including a light projecting section that projects light into the interior of the reed passage and a light receiving section that is arranged to face the reed passage; and a contrast adjusting member disposed between the dents adjacent in the weft insertion direction, wherein the contrast adjusting member is set to have a thickness equal to or greater than the separation distance when the dimension in the weft insertion direction is set to be a thickness and a distance between facing surfaces of the dents adjacent in the weft insertion direction is set to be the separation distance.
Accordingly, the contrast adjusting member is sandwiched by the dents adjacent in the weft insertion direction so as to expand, and is positioned and held between the dents. Therefore, the contrast adjusting member can be suppressed from vibrating during the beating-up operation, and erroneous detection due to the vibration of the contrast adjusting member can be suppressed, so that the weft yarn can be detected with high accuracy.
Further, the weft detecting device for an air jet loom is characterized by comprising a vibration suppressing member attached to the reed in a state of being in contact with the dents from the back side of the reed, and the contrast adjusting member is integrally formed with the vibration suppressing member.
Accordingly, the vibration of the contrast adjusting member can be further suppressed by the support of the vibration suppressing member in addition to the sandwiching of the adjacent dents in the weft insertion direction.
In addition, in the weft detecting device of the air jet loom, the contrast adjusting member may include: a main body portion having a front surface exposed to the reed passage, a long side of the main body portion extending in a long side direction of the reed dent; and a protrusion protruding from an upper end of the body portion toward a front surface side of the reed with respect to the front surface of the body portion, the protrusion having a side surface that is exposed to the reed passage and is continuous with the front surface.
Accordingly, the front surface of the main body portion and the side surface of the protruding portion of the contrast adjusting member are arranged at the projection destination of the light from the light projection portion, and the projected light can be reflected more easily.
Further, the weft detecting device of the air jet loom may include only one contrast adjusting member.
Accordingly, when the type of weft yarn is changed and the contrast adjusting member is required, the contrast adjusting member can be easily attached, and when the contrast adjusting member is no longer required, the contrast adjusting member can be easily detached.
Further, the weft detecting device of the air jet loom may include a plurality of the contrast adjusting members.
Accordingly, the contrast adjusting members are provided in plural, and the light projected from the light projecting section is easily reflected.
According to the present invention, weft yarn detection can be performed with high accuracy.
Drawings
Fig. 1 (a) is a schematic perspective view showing a positional relationship between a reed and a weft sensor of an air-jet loom, and (b) is a partially enlarged perspective view showing an installation position of a contrast adjusting member.
Fig. 2 is a partially cut schematic side view showing a positional relationship between the dents and the weft sensor.
Fig. 3 is a perspective view showing the vibration suppressing member and the contrast adjusting member.
Fig. 4 is a partial front view showing the dents and the contrast adjusting member.
Fig. 5 is a partial side view showing a positional relationship between the contrast adjusting member and the weft sensor.
Fig. 6 is a partial perspective view showing a state in which a plurality of contrast adjustment members are provided.
Description of reference numerals
D … thickness; k … separation distance; y … weft yarn; 13 … reed; 15 … dents; 15a … guide recess; 16 … in-reed passage; 20 … vibration suppression component; 30 … weft yarn sensor; 34 … light projecting part; 35 … light receiving part; 40 … contrast adjustment component; 40a … side, 41 … body; 41a … front surface; 42 … projection; 42a … side.
Detailed Description
Hereinafter, an embodiment in which a weft detecting device of an air jet loom is embodied will be described with reference to fig. 1 to 5.
As shown in fig. 1 (a), in an air jet loom 11, a main nozzle (not shown) for weft insertion, an auxiliary nozzle 12 for weft insertion, and a reed 13 are fixed to a slay 14. The sub-nozzle 12 is fixed to the slay 14 via a support block 17 so as to be adjustable in position. The sub-nozzle 12 can move in and out of the opening between the rows of the warp yarns T with respect to the warp yarns T in accordance with the swing of the slay 14.
The reed 13 includes a plurality of dents 15 held by a holding member 13a extending in the weft insertion direction, and the plurality of dents 15 are arranged in the weft insertion direction. Each of the dents 15 has a guide recess 15 a. As shown in fig. 1 (b), of the surfaces of the reed dent 15 forming the guide recess 15a, the surface that is most retreated from the front surface of the reed dent 15 as viewed in the weft insertion direction includes a first passage forming surface 15b, a second passage forming surface 15c on the upper surface continuous with the first passage forming surface 15b, and a third passage forming surface 15d on the lower surface continuous with the first passage forming surface 15 b. The plural guide recesses 15a form a reed passage 16 constituting a flying passage of the weft yarn Y.
The air jet loom 11 includes a vibration suppression member 20 that suppresses vibration of the reed dent 15. As shown in fig. 2 or 3, the vibration suppressing member 20 includes a rectangular plate-like mounting portion 21. The vibration suppressing member 20 includes a locking portion 22 having a shape in which one end portion (upper end portion) in the longitudinal direction of the mounting portion 21 is folded back, and the locking portion 22 has a shape capable of being locked from the upper end of the holding member 13a of the reed 13. A bolt 23 is screwed to the locking portion 22.
The vibration suppressing member 20 includes an integrated damper 24 on the other end side (lower end side) in the longitudinal direction of the mounting portion 21, and the damper 24 is an elastic member such as rubber. The vibration suppressing member 20 is attached to the reed 13 by screwing the bolt 23 toward the holding member 13a in a state where the locking portion 22 is locked to the holding member 13 a. The vibration damping material 24 of the vibration suppressing member 20 is pressed against the back surfaces of the plurality of dents 15. Then, during the beating-up operation, the vibration of the reed dent 15 is absorbed by the vibration absorbing material 24, and the vibration of the reed dent 15 can be suppressed.
A weft sensor 30 for detecting a weft Y flying through the reed passage 16 is fixed to the sley 14. The weft sensor 30 is disposed in a state where the upper warp and the lower warp are separated from the detection area. The upper warp means a warp T located on the upper side with the guide concave portion 15a interposed therebetween, and the lower warp means a warp T located on the lower side with the guide concave portion 15a interposed therebetween.
As shown in fig. 2 or 5, a light projecting portion 34 formed of a light emitting diode and a light receiving portion 35 formed of a phototransistor are provided at the tip end portion of the weft sensor 30, and the light projecting portion 34 and the light receiving portion 35 are electrically connected to a control device, not shown. The control device detects the flying state of the weft yarn Y based on the light receiving signal received by the light receiving unit 35. Therefore, the weft sensor 30 constitutes weft detecting means for finding whether the weft Y is properly inserted.
As shown in fig. 1 (b), the weft detecting device includes a contrast adjusting member 40 for reducing the influence of the color and thickness of the weft Y to be inserted on the weft detection. The contrast adjusting member 40 is integrated with the vibration suppressing member 20 and is disposed on the rear back surface of the flying weft Y. The contrast adjusting member 40 is disposed between the dents 15 adjacent in the weft insertion direction. The contrast adjusting member 40 is white.
As shown in fig. 3 or 4, the contrast adjusting member 40 includes a body portion 41 having a long side extending in the long side direction of the reed dent 15, and a protruding portion 42 protruding from one end (upper end) in the long side direction of the body portion 41 toward the front surface side of the reed dent 15, and has an inverted L-shape as viewed from the weft insertion direction.
The main body portion 41 has a front surface 41a on a surface exposed to the reed passage 16. The projecting portion 42 projects from the upper end portion of the body portion 41 toward the front surface side of the reed dent 15. In the protruding portion 42, a side surface 42a connected to the front surface 41a is exposed to the reed passage 16.
The contrast adjustment member 40 includes a reflection surface 43 that reflects the light projected from the light projection unit 34. The reflecting surface 43 is a surface formed by the front surface 41a of the main body 41 and the side surface 42a of the protruding portion 42, and is exposed to the reed passage 16 in the contrast adjusting member 40. The reflecting surface 43 is located obliquely above the weft sensor 30.
As shown in fig. 4 or 5, the front surface 41a of the main body 41 of the reflection surface 43 is disposed to be coplanar with the first passage forming surface 15b of the guide recess 15a, and the side surface 42a of the protrusion 42 is disposed to be coplanar with the second passage forming surface 15c of the guide recess 15 a. Therefore, the reflecting surface 43 is exposed to the interior of the reed passage 16.
The contrast adjusting member 40 includes an inverted L-shaped side surface 40a when viewed from the weft insertion direction. The dimension in the front-rear direction of the main body 41 and the protruding portion 42 in the side surface 40a is set to be the width F. The length of a straight line connecting the side surfaces 40a of the contrast adjusting member 40 at the shortest distance is defined as the thickness D. The thickness D of the contrast adjusting member 40 is constant in the front-rear direction.
As shown in fig. 4, the thickness D of the contrast adjusting member 40 is shorter than the width F of the contrast adjusting member 40 at the main body portion 41 and the projecting portion 42, and is slightly larger than the separation distance K between the opposed faces (side faces 40a) of the dents 15 adjacent in the weft insertion direction. In a state where the contrast adjusting member 40 is disposed between the adjacent dents 15, the adjacent dents 15 are expanded, and the side surface of one of the dents 15 is pressed against the side surface 40a of the contrast adjusting member 40, and the side surface of the other of the dents 15 is pressed against the side surface 40 a. Thereby, the contrast adjusting member 40 is sandwiched between the dents 15.
Next, the operation of the weft detecting device is described.
In the reed 13 provided with the contrast adjusting member 40, the contrast adjusting member 40 is suppressed from vibrating due to the beating-up operation when the air jet loom is driven. As shown in fig. 5, the weft detecting device projects light from the light projecting portion 34 of the weft sensor 30 toward the reed passage 16, and the light receiving portion 35 detects a part of the light reflected by the weft Y or the guide recess 15a of the reed dent 15. Then, the detection signal of the light receiving unit 35 is output, and the flying state of the weft yarn Y flying through the reed passage 16 is detected.
When the weft Y to be inserted is black with a low reflectance, the amount of reflected light from the weft Y is small, but the relative difference from the amount of reflected light from the reflection surface 43 of the contrast adjusting member 40 is large, and the relative difference exceeds the threshold value, and the weft Y can be detected. On the other hand, when the weft yarn Y to be inserted is white with a high reflectance, the weft yarn Y can be detected by the amount of reflected light of the weft yarn Y itself.
According to the above embodiment, the following effects can be obtained.
(1) The thickness D of the contrast adjusting member 40 is thicker than the separation distance K between the dents 15 adjacent in the weft insertion direction. Therefore, the contrast adjusting member 40 can be sandwiched by the reed dents 15 adjacent in the weft insertion direction, and vibration of the contrast adjusting member 40 during beating-up operation can be suppressed. As a result, false detection of the weft yarn Y due to vibration of the contrast adjusting member 40 can be suppressed, and the weft yarn Y can be detected with high accuracy.
(2) The contrast adjusting member 40 becomes unnecessary by the color and count of the weft yarn Y, and is detached from the reed 13. Thereby, the contrast adjustment member 40 is repeatedly attached to and detached from the reed 13. Since the contrast adjusting member 40 is sandwiched between the reed dents 15 adjacent to each other in the weft insertion direction, the front surface of the reed dent 15, particularly the first passage forming surface 15b to the third passage forming surface 15d defining the guide recess 15a, is not worn with attachment and detachment of the contrast adjusting member 40. As a result, it is possible to eliminate the damage of the weft yarn Y flying through the reed passage 16 due to the worn reed dent 15 after the contrast adjusting member 40 is removed.
(3) The reflection surface 43 of the contrast adjustment member 40 is provided in a state of being coplanar with the first passage forming surface 15b and the second passage forming surface 15c of the guide recess 15 a. Therefore, the contrast adjusting member 40 having the reflecting surface 43 does not interfere with the weft Y flying through the reed passage 16, and the projected light is easily reflected by the reflecting surface 43. Further, by disposing the contrast adjusting member 40, no recess is formed in the reed passage 16, and thus the air flow is not obstructed.
(4) The contrast adjusting member 40 is formed integrally with the vibration suppressing member 20 attached to the reed 13 in order to suppress the vibration of the reed dent 15. Therefore, the contrast adjusting member 40 is provided by the clamping of the reed dent 15 and the support of the vibration suppressing member 20. Therefore, the vibration of the contrast adjustment member 40 can be further suppressed, and the contrast adjustment member 40 can be prevented from falling off from between the dents 15.
(5) The vibration suppressing member 20 can be provided to the reed 13, and the contrast adjusting member 40 can be provided to the reed 13, so that the operation of installing the contrast adjusting member 40 is facilitated.
(6) The vibration suppression member 20 is a conventional member provided to suppress the vibration of the reed dent 15, and the contrast adjustment member 40 is formed integrally with the vibration suppression member 20. Therefore, there is no need to add a new member for providing the contrast adjusting member 40 to the reed 13, and there is little influence of the addition of the contrast adjusting member 40 on the beating-up operation.
(7) The contrast adjustment member 40 includes a main body 41 and a protrusion 42, and has an inverted L-shape when viewed from the weft insertion direction. The reflection surface 43 is formed by the front surface 41a of the main body 41 and the side surface 42a of the protrusion 42, and is located obliquely above the weft sensor 30. Therefore, the light projected obliquely downward can be efficiently reflected by the reflecting surface 43, particularly the side surface 42a of the protruding portion 42.
(8) The weft detecting device is provided with only one contrast adjusting member 40. Therefore, when the color and count of the weft yarn Y are changed and the contrast adjusting member 40 becomes unnecessary or necessary, only one contrast adjusting member 40 needs to be attached and detached, and the attachment and detachment work becomes easy.
(9) The weft detecting device is provided with only one contrast adjusting member 40. Therefore, the increase due to the addition of the contrast adjusting means 40 can be minimized.
The above embodiment may be modified as follows.
○ As shown in FIG. 6, the reed 13 may be provided with a plurality of contrast adjusting members 40. in this case, the plurality of contrast adjusting members 40 may be integrated with the vibration suppressing member 24 of the vibration suppressing member 20, and the plurality of contrast adjusting members 40 may be provided together with the vibration suppressing member 20 attached to the reed 13.
○ the contrast adjusting member 40 may not be formed integrally with the vibration suppressing member 20, in this case, the contrast adjusting member 40 may be provided to the reed 13 only by the sandwiching of the reed dent 15 adjacent in the weft insertion direction, or may be brought into a state in which the side surface 40a of the contrast adjusting member 40 and the side surface of the reed dent 15 are adhered to each other by an adhesive tape in addition to the sandwiching of the reed dent 15.
○ the contrast adjusting member 40 may not be in the shape of an inverted L when viewed in the weft insertion direction, for example, the contrast adjusting member 40 may be configured to have only the main body 41 in the shape of a rectangular plate without the protrusion 42, or may be in the shape of "コ" extending along the guide recess 15a when viewed in the weft insertion direction.
○ the thickness D of the contrast adjusting member 40 may be the same as the separation distance K between the dents 15 adjacent in the weft insertion direction, or may be thicker than in the embodiment.
○ the color of the contrast adjusting member 40 is not limited to white, and may be changed in accordance with the color of the weft yarn Y being inserted.
○ the reflective surface 43 of the contrast adjustment member 40 may be coated with an infrared reflective coating.
○, the reflection surface 43 of the contrast adjustment member 40 may be located behind the first passage forming surface 15b and the second passage forming surface 15c of the guide recess 15 a.
Claims (5)
1. A weft detecting device for an air jet loom, comprising a reed provided with a plurality of rows of dents having guide recesses in a weft insertion direction, wherein weft is inserted through an in-reed passage formed by the plurality of guide recesses by air injection,
the weft detection device for an air jet loom is characterized by comprising:
a weft sensor including a light projecting section that projects light into the reed passage and a light receiving section that is arranged to face the reed passage and receives a part of the light reflected by the weft or the guide recess; and
a contrast adjusting member disposed between the reed dents adjacent to each other in the weft insertion direction and provided with a reflecting surface on a back surface of the flying weft yarn for reflecting light projected from the light projecting portion from the weft sensor, the contrast adjusting member reducing an influence of a difference in light quantity of the reflected light due to a color and a thickness of the weft yarn to be inserted on the weft yarn detection,
the contrast adjusting member is configured such that, when the dimension in the weft insertion direction is a thickness (D) and the distance between the facing surfaces of the dents adjacent in the weft insertion direction is a separation distance (K), the thickness (D) of the contrast adjusting member is set to be equal to or greater than the separation distance (K).
2. Weft detecting device for an air jet loom according to claim 1,
the contrast adjusting device is provided with a vibration suppressing member attached to the reed in a state of being in contact with the dents from the back surface side of the reed, and the contrast adjusting member and the vibration suppressing member are integrally formed.
3. Weft detecting device for an air jet loom according to claim 1 or 2,
the contrast adjustment member includes: a main body portion having a front surface exposed to the reed passage, the long side of the main body portion extending in the longitudinal direction of the reed dent; and a protrusion protruding from an upper end of the body toward a front surface side of the reed with respect to the front surface of the body, the protrusion having a side surface that is exposed to the reed passage and is continuous with the front surface.
4. Weft detecting device for an air jet loom according to claim 1,
only one of the contrast adjusting members is provided.
5. Weft detecting device for an air jet loom according to claim 1,
the contrast adjusting member is provided in plurality.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-065586 | 2017-03-29 | ||
| JP2017065586A JP6776980B2 (en) | 2017-03-29 | 2017-03-29 | Weft detector for air jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108691074A CN108691074A (en) | 2018-10-23 |
| CN108691074B true CN108691074B (en) | 2020-06-16 |
Family
ID=61628230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228675.XA Expired - Fee Related CN108691074B (en) | 2017-03-29 | 2018-03-20 | Weft yarn detection device of air jet loom |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3382076B1 (en) |
| JP (1) | JP6776980B2 (en) |
| CN (1) | CN108691074B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7099329B2 (en) * | 2019-01-07 | 2022-07-12 | 株式会社豊田自動織機 | Warp and weft detector for air jet looms |
| JP7077968B2 (en) * | 2019-01-14 | 2022-05-31 | 株式会社豊田自動織機 | Weft processing equipment for air jet looms |
| JP7420042B2 (en) * | 2020-10-09 | 2024-01-23 | 株式会社豊田自動織機 | Weft detection device |
| JP2023156763A (en) * | 2022-04-13 | 2023-10-25 | 株式会社豊田自動織機 | Weft tensioning device for air jet loom |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE903115A (en) * | 1985-08-26 | 1986-02-26 | Picanol Nv | OPTICAL IMPACT GUARD FOR WEAVING MACHINES WITH A U-SHAPED REED |
| JPH0742047A (en) * | 1993-08-02 | 1995-02-10 | Toyota Autom Loom Works Ltd | Weft detecting device for air jet type weaving machine |
| JPH08127945A (en) | 1994-10-31 | 1996-05-21 | Micron Kiki Kk | Sensor for weft yarn |
| JP3471549B2 (en) * | 1997-01-09 | 2003-12-02 | 津田駒工業株式会社 | Weft detector |
| CN1508311A (en) * | 2002-12-18 | 2004-06-30 | 津田驹工业株式会社 | Gap-detection head for detecting weft-yarn, and weft-yarn detection device using same |
| ITMI20100390U1 (en) * | 2010-12-23 | 2011-03-24 | Roj Srl | GROUP OF OPTICAL SENSORS RELAXING IN A PORGITRAMA FOR TEXTILE FRAMES. |
| CN105483914B (en) * | 2016-01-12 | 2017-11-24 | 青岛天一集团红旗纺织机械有限公司 | A kind of weft in jet looms drafting system |
| CN205368634U (en) * | 2016-01-12 | 2016-07-06 | 青岛天一集团红旗纺织机械有限公司 | Air jet loom woof drafting arrangement |
-
2017
- 2017-03-29 JP JP2017065586A patent/JP6776980B2/en active Active
-
2018
- 2018-03-13 EP EP18161513.9A patent/EP3382076B1/en active Active
- 2018-03-20 CN CN201810228675.XA patent/CN108691074B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP3382076B1 (en) | 2020-06-24 |
| JP6776980B2 (en) | 2020-10-28 |
| EP3382076A1 (en) | 2018-10-03 |
| JP2018168490A (en) | 2018-11-01 |
| CN108691074A (en) | 2018-10-23 |
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