CN103103686B - The weft inserting apparatus of air-jet loom - Google Patents
The weft inserting apparatus of air-jet loom Download PDFInfo
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- CN103103686B CN103103686B CN201210378110.2A CN201210378110A CN103103686B CN 103103686 B CN103103686 B CN 103103686B CN 201210378110 A CN201210378110 A CN 201210378110A CN 103103686 B CN103103686 B CN 103103686B
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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
- D03D47/30—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
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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
- D03D47/30—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
- D03D47/3006—Construction of the nozzles
- D03D47/3013—Main nozzles
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- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A weft inserting apparatus for air-jet loom, comprise for latitude portion, storage Weft handling device, slay, the Weft insertion nozzle be arranged on slay, be arranged on Weft insertion nozzle upstream and there is the first series nozzle of the first accelerating tube and be arranged on the upstream of the first series nozzle and there is the second series nozzle of the second accelerating tube.Second accelerating tube of the second series nozzle is shorter than the first accelerating tube of the first series nozzle.
Description
Technical field
The present invention relates to a kind of weft inserting apparatus of air-jet loom.
Background technology
Japanese Patent Application Publication 01-280047 discloses a kind of weft inserting apparatus of air-jet loom, it allows weft yarn stably to walk, and without the need to changing the wefting insertion condition of main burner, and also allow the pressure setting by being used for main burner must be lower compared with using the situation of single-nozzle.Particularly, pilot jet is provided with between storage Weft handling device and main burner, and control expulsion pressure and the injection period of pilot jet according to the state of walking of weft yarn, indirectly and automatically regulate the power of conveying weft yarn, and can not need the wefting insertion condition changing main burner.
In recent years, the demand high-speed air-jet looms that can operate with about 1000RPM, thus improve braiding productivity ratio.In general, the traverse speed of weft yarn can be increased by the pressure of the air having additional supply of main burner and pilot jet.But if air pressure is too high, so weft yarn may rupture, and the cost that the increase of air consumption also results in production increases.Therefore, in the filling insertion rate increasing air-jet loom, there is limitation according to the weft inserting apparatus with main burner and pilot jet of above-mentioned open source literature.
It is contemplated that and additional pilot jet is set in the weft inserting apparatus of above-mentioned open source literature, so that realize high-speed air-jet looms.But the additional of pilot jet creates problem, such as, erection space in air consumption increase and air-jet loom expands.In addition, additional the making of nozzle is difficult to perform the operation of weft yarn through weft inserting apparatus.In addition, suitably should regulate the air-flow between existing pilot jet and additional pilot jet, so that stop cut-out or the damage of weft yarn when weft yarn is lax between existing pilot jet and additional pilot jet.
Summary of the invention
The present invention is devoted to provide a kind of weft inserting apparatus allowing the air-jet loom of high speed wefting insertion.
A weft inserting apparatus for air-jet loom, comprise for latitude portion, storage Weft handling device, slay, the Weft insertion nozzle be arranged on slay, be arranged on Weft insertion nozzle upstream and there is the first series nozzle of the first accelerating tube and be arranged on the upstream of the first series nozzle and there is the second series nozzle of the second accelerating tube.Second accelerating tube of the second series nozzle is shorter than the first accelerating tube of the first series nozzle.
Illustrated the description of principle of the present invention by example below in conjunction with accompanying drawing, other aspects of the present invention and advantage will become clear.
Accompanying drawing explanation
The feature being considered to novelty of the present invention proposes in the dependent claims particularly.The present invention and object thereof and advantage can by reference to understanding the description of currently preferred embodiment and accompanying drawing below best, wherein:
Fig. 1 is the schematic block diagram of the weft inserting apparatus illustrated according to a first embodiment of the present invention;
Fig. 2 is the diagrammatic top view of the multicolor weft insertion device illustrated according to the first embodiment;
Fig. 3 is the first series nozzle of the multicolor weft insertion device that Fig. 2 is shown and the top view of the second series nozzle;
Fig. 4 is the front view of first and second series nozzles of Fig. 3;
Fig. 5 is the schematic diagram of the structure representing Weft insertion nozzle, the first series nozzle and the second series nozzle;
Fig. 6 A is the diagrammatic side view of the weft brake of the weft inserting apparatus of Fig. 2, and the operation of weft brake is described;
Fig. 6 B is the diagrammatic elevation view of the weft brake of the weft inserting apparatus of Fig. 2, and the operation of weft brake is described; And
Fig. 7 is the diagrammatic top view of the weft brake of weft inserting apparatus according to a second embodiment of the present invention.
Detailed description of the invention
Below with reference to Fig. 1 to Fig. 6, the weft inserting apparatus according to the air-jet loom of the first embodiment is described.Weft inserting apparatus is represented by numeral 1 generally in FIG.In the following description, term " upstream " and " downstream " will represent relative to the direction of moving or walk direction of weft yarn in air-jet loom, unless otherwise.With reference to figure 1, weft inserting apparatus 1 comprises Weft insertion nozzle 2, is arranged on the first series nozzle 3 of the upstream of Weft insertion nozzle 2, is arranged on the second series nozzle 4 of the first series nozzle 3 upstream with keeping at a certain distance away with the first series nozzle 3 and is arranged on multiple sets of auxiliary blowers 5 in Weft insertion nozzle 2 downstream.
With reference to figure 1 and Fig. 2, the slay 6 that Weft insertion nozzle 2 and sets of auxiliary blowers 5 are arranged on air-jet loom swings back and forth.First series nozzle 3 and the second series nozzle 4 are fastened to the frame (not shown) of air-jet loom or are fastened to the support (not shown) fixed on the ground.Weft brake 7 is provided with, for braking weft yarn Y in the controlled moment between the first series nozzle 3 and the second series nozzle 4.
Weft insertion nozzle 2, first series nozzle 3 and the second series nozzle 4 are connected to valve 8,9,10 respectively by pipe 11.In this description, all represented by numeral 11 for supplying compressed-air actuated pipe.Valve 8 to 10 is connected to primary tank 12 by common pipe 11, and is exercisable to spray compressed air in the controlled moment from Weft insertion nozzle 2, first series nozzle 3 and the second series nozzle 4.Store and be connected to air supply source (not shown) by filter 13, pressure gauge 14, pressure-regulating valve 15 and pipe 11, such as compressor from the compressed-air actuated primary tank 12 of air supply source supply.Valve 8 to 10 switches on and off according to the beginning of wefting insertion and finish time, allows the nozzle of their correspondences to spray air and stops air spraying.
Meanwhile, each sets of auxiliary blowers 5 has public valve 16, and the pilot jet 5 in identical group is connected to valve 16 by pipe 11.The valve 16 of each group is connected to public additional reservoir 17 by pipe 11.The additional reservoir 17 of storing compressed air is connected to foregoing air supply source (not shown) by pressure-regulating valve 18, and pressure-regulating valve 18 is connected with the pipe 11 extended between pressure-regulating valve 15 and pressure gauge 14.Valve 16 is switched on and off with trunking scheme in the controlled moment, to spray compressed air with trunking scheme from each pilot jet 5 of identical group during wefting insertion.
With reference to the Fig. 2 illustrating multicolor weft insertion device 1A, 1B with diagrammatic top, multicolor weft insertion device 1A, 1B can operate alternately or introduce weft yarn Y1, Y2 according to any programmed sequence of wefting insertion.Weft yarn Y1, Y2 can be different from each other or identical type.Because weft inserting apparatus 1A, 1B have substantially the same structure, so the description of weft inserting apparatus can only concentrate on weft inserting apparatus 1A.
As shown in Figure 2, Weft insertion nozzle 2A, 2B of each weft inserting apparatus 1A, 1B be side by side and remain in retainer 19, retainer 19 is fixed to slay 6.First series nozzle 3A, the 3B of weft inserting apparatus 1A, 1B, weft brake 7A, 7B and second series nozzle 4A, 4B are fixed on by this way and are arranged on ground pillar (not shown), and namely the downstream end of the first series nozzle 3A, 3B, weft brake 7A, 7B and second series nozzle 4A, 4B points to Weft insertion nozzle 2A, 2B respectively.
Weft yarn Y1 is set in sequence in the upstream of the second series nozzle 4A for latitude portion 20A, storage Weft handling device 21A and weft yarn guide part 22A with this.Equally, confession latitude portion 20B, the storage Weft handling device 21B and weft yarn guide part 22B of weft yarn Y2 are set in sequence in the upstream of the second series nozzle 4B with this.By weft yarn Y1, Y2 respectively from pulling out for latitude portion 20A, 20B and being stored temporarily in storage Weft handling device 21A, 21B.Weft yarn Y1, the Y2 be stored in Weft handling device 21A, 21B imports in second series nozzle 4A, 4B respectively by weft yarn guide part 22A, 22B, then imported in first series nozzle 3A, 3B by weft brake 7A, 7B, and import to further in Weft insertion nozzle 2A, 2B.Weft yarn Y1, Y2 are incorporated into opening (not shown) from Weft insertion nozzle 2A, 2B in the controlled moment respectively.
First and second series nozzle 3A, 4A and the relevant portions thereof of weft inserting apparatus 1A are described below with reference to Fig. 3 to Fig. 6.As shown previously, weft inserting apparatus 1A, 1B have substantially the same structure, the description of therefore omitting weft inserting apparatus 1B below with reference to Fig. 3 to Fig. 6 only describes weft inserting apparatus 1A.As shown in Figure 3 and Figure 4, the first series nozzle 3A comprises retainer 25, the first accelerating tube 23 be bearing in by retainer 25 on its downstream, is also bearing in weft yarn entrance 24 on its upstream side by retainer 25 and weft yarn exports 26.The opposed end that weft yarn entrance 24 and weft yarn outlet 26 are arranged on the first accelerating tube 23, and make to prevent the mobile weft yarn by accelerating tube 23 from contacting owing to exporting 26 with weft yarn entrance 24 and weft yarn and wear and tear by pottery.The the second series nozzle 4A being arranged on the first series nozzle 3A upstream at certain intervals with the first series nozzle 3A comprises retainer 29, the second accelerating tube 27 be bearing in by retainer 29 on its downstream, be also bearing in weft yarn entrance 28 on its upstream side by retainer 29 and weft yarn exports 30.The weft yarn entrance 28 and the weft yarn outlet 30 that are arranged on the opposed end of the second accelerating tube 27 are made up of pottery.
The retainer 25 of the first series nozzle 3A is fixed with support 31 by bolt 32.Weft brake 7A comprises the weft yarn guide part 33 and stepper motor 34 that are fixed to support 31.The weft yarn that weft yarn guide part 33 is almost arranged on the weft yarn entrance 24 of the first series nozzle 3A and second accelerating tube 27 of the second series nozzle 4A exports the center between 30.As shown in Figures 2 and 3, the first series nozzle 3A, the second series nozzle 4A and weft yarn guide part 33 are configured in axis X coaxially, to form the straight weft yarn passage being used for weft yarn Y1.In current description of the present invention, weft yarn passage represents the path that weft yarn passes along it.
With reference to figure 3, Fig. 6 A and Fig. 6 B, the motor drive shaft 35 of stepper motor 34 is fixed with the motor drive shaft retainer 37 with U-shaped brake lever 36.Particularly, brake lever 36 is configured to, and the branch of the U-shaped portion of brake lever 36 lays respectively between weft yarn entrance 24 and weft yarn guide part 33 and weft yarn exports between 30 and weft yarn guide part 33.Position on support 31 above brake lever 36 is fixed with retainer 43.Stepper motor 34 makes motor drive shaft retainer 37 rotate thus makes brake lever 36 pivotable on motor drive shaft 35.Brake lever 36 is arranged on non-operative position (being represented by the solid line of Fig. 6 A) usually, and when operating stepper motor 34, brake lever 36 is pivoted to operating position (being represented by the double dot dash line of Fig. 6 A) downwards in axis X.In addition, weft yarn entrance 24 and weft yarn outlet 30 are also used separately as the upstream and downstream weft yarn guide part of weft brake 7A, to reduce to install the space required for weft brake 7A.
As shown in Figure 4, two connecting portions 38,39 that the retainer 25 of the first series nozzle 3A and the retainer 29 of the second series nozzle 4A are configured by self link together.Connecting portion 38,39 allows the weft yarn guide part 33 of the first series nozzle 3A, weft brake 7A and the second series nozzle 4A to be positioned at coaxially in axis X with high accuracy.Therefore, the first series nozzle 3A, weft brake 7A and the second series nozzle 4A can be combined into a unit, so that weft inserting apparatus 1A can easily and accurately be arranged in air-jet loom.
Weft insertion nozzle 2A, the first series nozzle 3A and the second series nozzle 4A are described in more detail, for the comparison between them below with reference to Fig. 5.The weft yarn at the downstream end place that Weft insertion nozzle 2A comprises weft yarn entrance 40, the 3rd accelerating tube 41 and is formed in the 3rd accelerating tube 41 exports 42.Weft yarn entrance 40 and weft yarn outlet 42 are made up of pottery.
With reference to figure 5, L1, L2 and L3 represent the length of the length of the 3rd accelerating tube 41 of Weft insertion nozzle 2A, the length of first accelerating tube 23 of the first series nozzle 3A and second accelerating tube 27 of the second series nozzle 4A respectively, wherein L1 is less than L2, and L1 is greater than L3, and therefore L3 is less than L2.Although supply compressed air (with reference to figure 1) from same primary tank 12, but being less than L1 and L2 by the length L3 of the second accelerating tube 27 making the second series nozzle 4A, the power of the weft yarn be applied to for walking in the second series nozzle 4A can being made to be less than be applied to those pressure for the weft yarn of walking in Weft insertion nozzle 2A and the first series nozzle 3A.The length L2 of first accelerating tube 23 of the first series nozzle 3A can be equal to or less than the length L1 of the 3rd accelerating tube 41 of Weft insertion nozzle 2A.
Therefore, decrease air consumption and prevent the weft yarn Y1 of excess lengths to be fed to the weft yarn entrance 24 of the first series nozzle 3A, to prevent weft yarn Y1 lax between the first series nozzle 3A and the second series nozzle 4A, and weft yarn Y1 has the tension force of expectation, consequently carry weft yarn Y1 swimmingly.Second series nozzle 4A is used for weft yarn Y1 pull out from storage Weft handling device 21A thus reduce the pull-out resistance of weft yarn Y, and therefore reduces the load on the first series nozzle 3A and Weft insertion nozzle 2A, consequently decreases air consumption.In addition, the shorter length of second accelerating tube 27 of the second series nozzle 4A can prevent the increase of the erection space of weft inserting apparatus 1A.
With reference to figure 5, the internal diameter D1 of the 3rd accelerating tube 41 of Weft insertion nozzle 2A is substantially equal to or the internal diameter D2 of the first accelerating tube 23 close to the first series nozzle 3A.The internal diameter D2 of first accelerating tube 23 of the first series nozzle 3A is greater than the internal diameter D3 of second accelerating tube 27 of the second series nozzle 4A.The combination of the reduction internal diameter D3 of the second accelerating tube 27 and the length that shortens of the second accelerating tube 27 contributes to easily the power being used for weft yarn Y1 is walked in the second series nozzle 4A being set as less optimum value.
The operation of weft brake 7A is described below with reference to Fig. 6.Under the off position of weft brake 7A, brake lever 6 contacts with retainer 43 in the non-operative position that the solid line by Fig. 6 A, Fig. 6 B represents.When during picking operation at controlled moment operation stepper motor 34 time (with reference to figure 3), brake lever 36 is pivoted to the operating position represented by double dot dash line on motor drive shaft 35, so that the brake lever 36 downward promotion weft yarn entrance 24 of the first series nozzle 3A and the weft yarn of the second series nozzle 4A export the weft yarn Y1 between 30.Particularly, as shown in double dot dash line, the position of weft yarn Y1 between weft yarn guide part 33 with weft yarn entrance 24 and weft yarn guide part 33 are pushed down into the shape (with reference to figure 6) of W with the weft yarn position exported between 30, and accept braking action.
Weft inserting apparatus 1 according to the first embodiment performs wefting insertion in the manner as described below.When selecting weft yarn Y1 for wefting insertion during the knit operation at air-jet loom, operating valve 8 to 10 allows Weft insertion nozzle 2A, the first series nozzle 3A and the second series nozzle 4A to spray compressed air in the controlled moment.When the weft yarn Y in Weft handling device 21A is stored up in the release of weft yarn latch (not shown), stored weft yarn Y1 is pulled out by the second series nozzle 4A.Second series nozzle 4A bears opposing pulls out the resistance of weft yarn Y major part from storage Weft handling device 21A, makes the second series nozzle 4A be provided for carrying the much smaller power of weft yarn Y1 than the first series nozzle 3A.
Not needing to bear opposing can use its most of jet power to walk for making weft yarn Y from the first series nozzle 3A of the resistance of storage Weft handling device 21A pull-out weft yarn Y.Therefore, the weft yarn Y pulled out by the second series nozzle 4A is transported to Weft insertion nozzle 2A by the jet power strengthened by first accelerating tube 23 of the first series nozzle 3A.The weft yarn Y shifted out from the first series nozzle 3A is subject to jet power further so that be incorporated in open opening (not shown) among Weft insertion nozzle 2A.Therefore, the jet power major part in the first series nozzle 3A and Weft insertion nozzle 2A is used for weft yarn Y is walked, can realize the high speed wefting insertion of weft yarn Y in air-jet loom.
When in air-jet loom weft yarn Y rupture or when forming new fabric, weft yarn Y1 needs through weft inserting apparatus 1A.Weft inserting apparatus 1A according to the first embodiment is configured to, and the weft yarn passage for weft yarn Y1 extends through the first series nozzle 3A, weft brake 7A and the second series nozzle 4A linearly along axis X.Therefore, only the weft yarn entrance 28 of the end of weft yarn Y1 near the second series nozzle 4A placed and allowed compressed air to be fed to the second series nozzle 4A, just making weft yarn Y1 move along straight weft yarn passage under jet impact and arrive the weft yarn outlet 26 of the first series nozzle 3A.Therefore, it is possible to perform weft yarn through the second and first series nozzle 4A and 3A by single operation.By the weft yarn entrance 40 of the front end of weft yarn Y near Weft insertion nozzle 2A is placed and allowed compressed air to be fed to Weft insertion nozzle 2A, the weft yarn Y of the weft yarn of arrival first series nozzle 3A outlet 26 can be incorporated in Weft insertion nozzle 2A.Complete weft yarn Y like this through weft inserting apparatus 1A.
Below with reference to Fig. 7, the weft inserting apparatus according to the second embodiment is described.Second embodiment is different in the configuration of weft brake from the first embodiment.The identical reference marker of use is represented those parts corresponding with the corresponding component of the first embodiment or element, and by the descriptions thereof are omitted.In a second embodiment, the weft brake represented by 44A is configured in the upstream of the second series nozzle 4A.Be fixed to the retainer 29 of the second series nozzle 4A by bolt 46 as the support 45 of the supporting member of weft brake 44A, and L bracket 47 is fixed to support 45 by bolt 48.Support 45,47 cooperation forms U-shaped support.
The stepper motor 49 forming a part of weft brake 44A is fixed to support 45 by securing member (not shown) such as such as bolts.Retainer 50 is fixed to support 45 by bolt 51, and weft yarn guide part 52 is configured in the upstream of the second series nozzle 4A and is fixed to support 45 by supporting member (not shown).As in the first embodiment, the motor drive shaft retainer 55 with U-shaped brake lever 54 is fixed to the motor drive shaft 53 of stepper motor 49.When during picking operation at controlled moment operation stepper motor 49 and when making motor drive shaft retainer 55 rotate, the non-operative position that brake lever 54 prevents brake lever 54 from moving up from retainer 50 on motor drive shaft 53 is pivoted to the operating position below weft yarn guide part 52.
Threading nozzle 56 is fixed to L bracket 47 in the position of the upstream of weft yarn guide part 52.Threading nozzle 56 has weft yarn outlet 57 and has weft yarn entrance 58 by end thereon at its downstream end place.Weft yarn outlet 57 and weft yarn entrance 58 are made up of pottery.Threading nozzle 56 is connected to pipe 11, and compressed air can be supplied from primary tank 12 (Fig. 1) by valve (not shown) through this pipe 11.
The weft yarn passage extending through the second series nozzle 4A, weft brake 44A and threading nozzle 56 extends linearly along axis X.Therefore, when being placed near the weft yarn entrance 58 of threading nozzle 56 by weft yarn Y and through pipe 11 compressed air being fed to threading nozzle 56, weft yarn Y can easily be performed through weft brake 44A and the second series nozzle 4A.In addition, the weft yarn outlet 57 of threading nozzle 56 and the weft yarn entrance 28 of the second series nozzle 4A are used separately as the upstream and downstream weft yarn guide part of weft brake 44A, to make the space required for installation weft brake 44A minimum.In addition, second series nozzle 4A, weft brake 44A and threading nozzle 56 are installed to support 45 and L bracket 47 becomes integrated unit, so as the second series nozzle 4A, weft brake 44A and threading nozzle 56 can easily arranged coaxial in weft inserting apparatus.
If the first series nozzle 3A (not shown in the figure 7) and axis X arranged coaxial, so weft yarn can be performed through second and first series nozzle 4A, 3A with single operation.In a second embodiment, weft brake 44A and threading nozzle 56 can be arranged discretely with the second series nozzle 4A.
The invention is not restricted to above-described embodiment, but can as illustratively put into practice in every way below.
(1) in a first embodiment, weft brake 7,7A, 7B can and the first series nozzle 3,3A, 3B arrange discretely so that be configured in respectively the first series nozzle 3,3A, 3B and the second series nozzle 4, between 4A, 4B.In addition, except the weft yarn entrance 24 of the weft yarn outlet 30 of the second series nozzle 4,4A, 4B or first series nozzle 3,3A, 3B, independent weft yarn guide part can be set respectively at least one of the upstream and downstream of weft brake 7,7A, 7B.
(2) extend through the first series nozzle 3,3A, 3B, weft brake 7,7A, 7B and the second series nozzle 4,4A, 4B weft yarn passage must be not aligned with each other along straight axial X, but weft yarn passage can be bending.
(3) in a first embodiment, first accelerating tube 23 of the 3rd accelerating tube 41 of Weft insertion nozzle 2,2A, 2B and the first series nozzle 3,3A, 3B is made up of the straight pipe with constant inner diameter, and the 3rd and first at least one of accelerating tube 41,23 can be made up of oviduct, its internal diameter increases along downstream direction to improve jet power.
(4) in a first embodiment, valve 8 to 10 can be replaced by single valve, mutually to spray compressed air from Weft insertion nozzle 2,2A, 2B, the first series nozzle 3,3A, 3B and the second series nozzle 4,4A, 4B in the same time.
Stepper motor 34,49 in (5) first and second embodiments can by servo motor or the motor replacement operating any other controlled type.
Claims (6)
1. the weft inserting apparatus (1,1A, 1B) of an air-jet loom, comprising:
For latitude portion (20A, 20B);
Storage Weft handling device (21A, 21B);
Slay (6);
Weft insertion nozzle (2), its be arranged on described slay (6) upper and can before and after reciprocally swinging;
First series nozzle (3,3A, 3B), it is arranged on the upstream of described Weft insertion nozzle (2) and is fastened to the frame of described air-jet loom or is fastened to the support fixed on the ground, described first series nozzle (3,3A, 3B) there is the first accelerating tube (23); And
Second series nozzle (4,4A, 4B), it is arranged on described first series nozzle (3,3A, upstream 3B) and be fastened to the described frame of described air-jet loom or be fastened to the described support fixed on the ground, described second series nozzle (4,4A, 4B) has the second accelerating tube (27), it is characterized in that, second accelerating tube (27) of described second series nozzle (4,4A, 4B) is than described first series nozzle (3,3A, 3B) the first accelerating tube (23) short.
2. the weft inserting apparatus (1 of air-jet loom according to claim 1,1A, 1B), it is characterized in that, the internal diameter of second accelerating tube (27) of described second series nozzle (4,4A, 4B) is less than described first series nozzle (3,3A, 3B) the internal diameter of the first accelerating tube (23).
3. according to the weft inserting apparatus (1,1A, 1B) of the air-jet loom in claim 1 and 2 described in any one, wherein weft yarn (Y, Y1, Y2) is through described first series nozzle (3,3A, 3B) and described second series nozzle (4,4A, 4B), and be formed with weft yarn passage, described weft yarn (Y, Y1, Y2) pass along this weft yarn passage, described weft inserting apparatus (1,1A, 1B) also comprise:
Be arranged on described first series nozzle (3, 3A, 3B) with described second series nozzle (4, 4A, 4B) and by described weft yarn (Y, Y1, Y2) weft brake (7 passed, 7A, 7B), it is characterized in that, described first series nozzle (3, 3A, 3B), described weft brake (7, 7A, 7B) and described second series nozzle (4, 4A, 4B) configure coaxially, for use in described weft yarn (Y, Y1, Y2) described weft yarn passage extends through described first series nozzle (3 linearly, 3A, 3B), described weft brake (7, 7A, 7B) and described second series nozzle (4, 4A, 4B).
4. the weft inserting apparatus (1 of air-jet loom according to claim 3, 1A, 1B), wherein said first series nozzle (3, 3A, 3B) comprise weft yarn entrance (24), wherein said second series nozzle (4, 4A, 4B) comprise weft yarn outlet (30), wherein said weft brake (7, 7A, 7B) comprise weft yarn guide part (24, 30, 33), it is characterized in that, described weft brake (7, 7A, 7B) be fixed to described first series nozzle (3, 3A, 3B), (30) are each serves as described weft brake (7 for wherein said weft yarn entrance (24) and the outlet of described weft yarn, 7A, weft yarn guide part (24 7B), 30).
5. according to the weft inserting apparatus (1 of the air-jet loom in claim 1 and 2 described in any one, 1A, 1B), it is characterized in that, described weft inserting apparatus (1,1A, 1B) also comprise described first series nozzle (3,3A, 3B) with described second series nozzle (4,4A, 4B) connecting portion (38,39) that links together.
6. according to the weft inserting apparatus (1,1A, 1B) of the air-jet loom in claim 1 and 2 described in any one, wherein weft yarn (Y, Y1, Y2) is through described first series nozzle (3,3A, 3B) and described second series nozzle (4,4A, 4B), and be formed with weft yarn passage, described weft yarn (Y, Y1, Y2) pass along this weft yarn passage, described weft inserting apparatus (1,1A, 1B) also comprise:
Weft brake (44A), it is arranged on the upstream of described second series nozzle (4,4A, 4B) and is passed by described weft yarn (Y, Y1, Y2); And
Threading nozzle (56), its be arranged on described weft brake (44A) upstream and by described weft yarn (Y, Y1, Y2) pass, it is characterized in that, described threading nozzle (56), described weft brake (44A) and described second series nozzle (4,4A, 4B) arrange coaxially, described weft yarn passage for use in described weft yarn (Y, Y1, Y2) extends through described threading nozzle (56), described weft brake (44A) and described second series nozzle (4 linearly, 4A, 4B).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-200049 | 2011-09-14 | ||
| JP2011200049A JP5321662B2 (en) | 2011-09-14 | 2011-09-14 | Weft insertion device for air jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103103686A CN103103686A (en) | 2013-05-15 |
| CN103103686B true CN103103686B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210378110.2A Active CN103103686B (en) | 2011-09-14 | 2012-09-13 | The weft inserting apparatus of air-jet loom |
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| Country | Link |
|---|---|
| JP (1) | JP5321662B2 (en) |
| CN (1) | CN103103686B (en) |
| BE (1) | BE1022230B1 (en) |
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| CN104073958A (en) * | 2014-06-21 | 2014-10-01 | 泰州市凌峰机电设备有限公司 | Tandem type swinging main nozzle |
| JP2021017665A (en) * | 2019-07-19 | 2021-02-15 | 津田駒工業株式会社 | Weft insertion device for air jet loom |
| JP2023110373A (en) * | 2022-01-28 | 2023-08-09 | 津田駒工業株式会社 | Weft insertion method and weft insertion device in air jet loom |
Citations (6)
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| DE7728677U1 (en) * | 1976-09-17 | 1978-07-20 | Rueti-Te Strake B.V., Deurne (Niederlande) | PNEUMATIC WEAVING MACHINE WITH SHOT DEVICE |
| CS214313B1 (en) * | 1980-11-03 | 1982-04-09 | Jindrich Henzl | Main jet of jet loom |
| EP0527510A1 (en) * | 1991-08-13 | 1993-02-17 | Picanol N.V. | Thread brake |
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| CN101016671A (en) * | 2006-02-08 | 2007-08-15 | 株式会社丰田自动织机 | Cooling device in jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5321662B2 (en) | 2013-10-23 |
| BE1022230B1 (en) | 2016-03-03 |
| JP2013060686A (en) | 2013-04-04 |
| CN103103686A (en) | 2013-05-15 |
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