CN103103686A - Weft insertion device for air-jet loom - Google Patents

Weft insertion device for air-jet loom Download PDF

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Publication number
CN103103686A
CN103103686A CN2012103781102A CN201210378110A CN103103686A CN 103103686 A CN103103686 A CN 103103686A CN 2012103781102 A CN2012103781102 A CN 2012103781102A CN 201210378110 A CN201210378110 A CN 201210378110A CN 103103686 A CN103103686 A CN 103103686A
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China
Prior art keywords
weft
nozzle
weft yarn
series nozzle
series
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CN2012103781102A
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CN103103686B (en
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滨口敦司
牧野洋一
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Toyota Industries Corp
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Toyoda Automatic Loom Works Ltd
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Publication of CN103103686A publication Critical patent/CN103103686A/en
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Publication of CN103103686B publication Critical patent/CN103103686B/en
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28Looms 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
    • D03D47/30Looms 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
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28Looms 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
    • D03D47/30Looms 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
    • D03D47/3006Construction of the nozzles
    • D03D47/3013Main nozzles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

The invention provides a weft insertion device for an air-jet loom. The weft insertion device comprises a weft supply part, a weft storage device, a sley bar, a weft insertion nozzle disposed on the sley bar, a first serial nozzle provided with a first acceleration pipe and disposed at the upstream of the weft insertion nozzle, and a second serial nozzle provided with a second acceleration pipe and disposed at the upstream of the first serial nozzle. The second acceleration pipe of the second serial nozzle is shorter than the first acceleration pipe of the first serial nozzle.

Description

The weft inserting apparatus of air-jet loom
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 need not to change the wefting insertion condition of main burner, and compare with the situation of using single-nozzle that also allow will must be lower for the pressure setting of main burner.Particularly, be provided with pilot jet between storage Weft handling device and main burner, and control the expulsion pressure of pilot jet and between injection period according to the state of walking of weft yarn, so that can be indirectly and automatically regulate the power of carrying weft yarn, and do not need to change the wefting insertion condition of main burner.
In recent years, demand can with the high-speed air-jet looms of about 1000RPM running, weave productivity ratio thereby improve.The pressure of air that in general, can be by having additional supply of main burner and pilot jet increases the traverse speed of weft yarn.Yet if air pressure is too high, weft yarn may rupture so, and the increase of air consumption has also caused the cost in production to increase.Therefore, the weft inserting apparatus with main burner and pilot jet according to above-mentioned open source literature has limitation aspect the filling insertion rate that increases air-jet loom.
It is contemplated that additional pilot jet is set in the weft inserting apparatus of above-mentioned open source literature, so that realize high-speed air-jet looms.Yet the additional problem that produced of pilot jet, for example the erection space in air consumption increase and air-jet loom enlarges.In addition, additional the making of nozzle is difficult to carry out the operation of weft yarn being passed weft inserting apparatus.In addition, should suitably regulate the air-flow between existing pilot jet and additional pilot jet, so that when cut-out or the damage of weft yarn prevention weft yarn when relaxing 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 that allows the air-jet loom of high speed wefting insertion.
A kind of weft inserting apparatus of air-jet loom comprises for latitude section, storage Weft handling device, slay, is arranged on Weft insertion nozzle on slay, is arranged on the upstream of Weft insertion nozzle and has the first series nozzle of the first accelerating tube and be arranged on the upstream of the first series nozzle and have the second series nozzle of the second accelerating tube.The second accelerating tube of the second series nozzle is shorter than the first accelerating tube of the first series nozzle.
From pass through the description of example illustration principle of the present invention below in conjunction with accompanying drawing, it is clear that other aspects of the present invention and advantage will become.
Description of drawings
The feature that is considered to novelty of the present invention proposes in the dependent claims particularly.The present invention and purpose thereof and advantage can be understood best by following description and the accompanying drawing to currently preferred embodiment of reference, wherein:
Fig. 1 is the schematic block diagram that illustrates according to the weft inserting apparatus of first embodiment of the invention;
Fig. 2 is the diagrammatic top view that illustrates according to the multicolor weft insertion device of the first embodiment;
Fig. 3 illustrates the first series nozzle of multicolor weft insertion device of Fig. 2 and the top view of the second series nozzle;
Fig. 4 is the front view of the first and second series nozzles of Fig. 3;
Fig. 5 is the schematic diagram of the structure of expression Weft insertion nozzle, the first series nozzle and the second series nozzle;
Fig. 6 A is the diagrammatic side view of 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 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 according to the weft brake of the weft inserting apparatus of second embodiment of the invention.
The specific embodiment
Below with reference to the weft inserting apparatus of Fig. 1 to Fig. 6 description according to the air-jet loom of the first embodiment.Weft inserting apparatus is generally by numeral 1 expression in Fig. 1.In the following description, term " upstream " and " downstream " will represent with respect to weft yarn the direction that moves or walk direction 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, be arranged on the second series nozzle 4 of the first series nozzle 3 upstreams and a plurality of sets of auxiliary blowers 5 that are arranged on Weft insertion nozzle 2 downstreams with the first series nozzle 3 with keeping at a certain distance away.
With reference to figure 1 and Fig. 2, Weft insertion nozzle 2 and sets of auxiliary blowers 5 are arranged on the slay 6 of air-jet loom and back and forth and swing.The 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) that fixes on the ground.Be provided with weft brake 7 between the first series nozzle 3 and the second series nozzle 4, be used in the controlled moment, weft yarn Y being braked.
Weft insertion nozzle 2, the first series nozzle 3 and the second series nozzle 4 are connected to valve 8,9,10 by managing 11 respectively.In this description, be used for supplying compressed-air actuated pipe all by numeral 11 expressions.Valve 8 to 10 is connected to primary tank 12 by common pipe 11, and is exercisable in order to spray compressed air in the controlled moment from Weft insertion nozzle 2, the first series nozzle 3 and the second series nozzle 4.Storage is from the compressed-air actuated primary tank 12 of air supply source supply by filter 13, pressure gauge 14, pressure-regulating valve 15 and manage 11 and be connected to air supply source (not shown), for example compressor.Valve 8 to 10 allows the nozzle ejection air of their correspondences and stops air spraying according to switching on and off beginning and the finish time of wefting insertion.
Simultaneously, each sets of auxiliary blowers 5 has public valve 16, and mutually the pilot jet 5 on the same group is connected to valve 16 by managing 11.The valve 16 of each group is connected to public additional reservoir 17 by managing 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 that extends between pressure-regulating valve 15 and pressure gauge 14.Switch on and off valve 16 with trunking scheme in the controlled moment during wefting insertion, in order to spray compressed air with trunking scheme from phase each pilot jet 5 on the same group.
With reference to Fig. 2 of multicolor weft insertion device 1A, 1B is shown with diagrammatic top view, 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 differ from one another 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, the 2B of each weft inserting apparatus 1A, 1B be side by side and remain in retainer 19, retainer 19 is fixed to slay 6.The first series nozzle 3A, the 3B of weft inserting apparatus 1A, 1B, weft brake 7A, 7B and the 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 the second series nozzle 4A, 4B points to respectively Weft insertion nozzle 2A, 2B.
Weft yarn Y1 is set in sequence in the upstream of the second series nozzle 4A for the latitude 20A of section, storage Weft handling device 21A and weft yarn guide part 22A with this.Equally, weft yarn Y2's is set in sequence in the upstream of the second series nozzle 4B for the latitude 20B of section, storage Weft handling device 21B and weft yarn guide part 22B with this.With weft yarn Y1, Y2 respectively from for the latitude 20A of section, 20B pulls out and be stored temporarily in storage Weft handling device 21A, 21B.The weft yarn Y1, the Y2 that are stored in Weft handling device 21A, 21B import in the second series nozzle 4A, 4B by weft yarn guide part 22A, 22B respectively, then import in the first series nozzle 3A, 3B by weft brake 7A, 7B, and further import in Weft insertion nozzle 2A, 2B.Weft yarn Y1, Y2 are incorporated into the opening (not shown) from Weft insertion nozzle 2A, 2B in the controlled moment respectively.
The first and second series nozzle 3A, 4A and the relevant portion 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, therefore omit the description to 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, is bearing in the first accelerating tube 23 on its downstream, also is bearing in weft yarn entrance 24 and weft yarn outlet 26 on its upstream side by retainer 25 by retainer 25.Weft yarn entrance 24 and weft yarn outlet 26 are arranged on the opposed end of the first accelerating tube 23, and make to prevent that by pottery the weft yarn that moves through accelerating tube 23 from wearing and tearing owing to contacting with weft yarn outlet 26 with weft yarn entrance 24.The the second series nozzle 4A that is arranged at certain intervals the first series nozzle 3A upstream with the first series nozzle 3A comprises retainer 29, is bearing in the second accelerating tube 27 on its downstream, also is bearing in weft yarn entrance 28 and weft yarn outlet 30 on its upstream side by retainer 29 by retainer 29.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 by pottery.
Be fixed with support 31 by bolt 32 on the retainer 25 of the first series nozzle 3A.Weft brake 7A comprises weft yarn guide part 33 and the stepper motor 34 that is fixed to support 31.Weft yarn guide part 33 almost is arranged on the center between the weft yarn outlet 30 of the second accelerating tube 27 of the weft yarn entrance 24 of the first series nozzle 3A and the second series nozzle 4A.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 on axis X coaxially, in order to be formed for the straight weft yarn passage of weft yarn Y1.In current description of the present invention, weft yarn passage represents that weft yarn is along its path that passes.
With reference to figure 3, Fig. 6 A and Fig. 6 B, be fixed with the motor drive shaft retainer 37 with U-shaped brake lever 36 on the motor drive shaft 35 of stepper motor 34.Particularly, brake lever 36 is configured to, and the branching portion of the U-shaped section of brake lever 36 is respectively between weft yarn entrance 24 and weft yarn guide part 33 and between weft yarn outlet 30 and weft yarn guide part 33.Be fixed with retainer 43 in the position above brake lever 36 on support 31.37 rotations make brake lever 36 pivotable on motor drive shaft 35 thereby stepper motor 34 makes the motor drive shaft retainer.Brake lever 36 is arranged on non-operative position (solid line by Fig. 6 A represents) usually, and when operation stepper motor 34, brake lever 36 is pivoted to operating position (double dot dash line by Fig. 6 A represents) downwards on axis X.In addition, weft yarn entrance 24 and weft yarn outlet 30 also are used separately as the upstream and downstream weft yarn guide part of weft brake 7A, in order to reduce to install the needed space of weft brake 7A.
As shown in Figure 4, the retainer 29 of the retainer 25 of the first series nozzle 3A and the second series nozzle 4A is linked together by two connecting portions 38,39 that self configures.Connecting portion 38,39 allows weft yarn guide part 33 and the second series nozzle 4A of the first series nozzle 3A, weft brake 7A to be positioned on axis X coaxially 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.
Describe in more detail Weft insertion nozzle 2A, the first series nozzle 3A and the second series nozzle 4A below with reference to Fig. 5, be used for the comparison between them.The weft yarn outlet 42 that Weft insertion nozzle 2A comprises weft yarn entrance 40, the 3rd accelerating tube 41 and is formed on the downstream end place of the 3rd accelerating tube 41.Weft yarn entrance 40 and weft yarn outlet 42 are made by pottery.
With reference to figure 5, L1, L2 and L3 represent respectively the length of the second accelerating tube 27 of the length of the first accelerating tube 23 of length, the first series nozzle 3A of the 3rd accelerating tube 41 of Weft insertion nozzle 2A and the second series nozzle 4A, wherein L1 is less than L2, and L1 is greater than L3, so L3 is less than L2.Although from same primary tank 12 supply compressed air (with reference to figure 1), but the length L 3 of the second accelerating tube 27 by making the second series nozzle 4A is less than L1 and L2, can make to be applied to for the power of the weft yarn of walking at the second series nozzle 4A less than those pressure that are applied to for the weft yarn of walking at Weft insertion nozzle 2A and the first series nozzle 3A.The length L 2 of the first accelerating tube 23 of the first series nozzle 3A can be equal to or less than the length L 1 of the 3rd accelerating tube 41 of Weft insertion nozzle 2A.
Therefore, reduced air consumption and prevented that the weft yarn Y1 of excessive length is fed to the weft yarn entrance 24 of the first series nozzle 3A, to prevent that weft yarn Y1 is lax between the first series nozzle 3A and the second series nozzle 4A, and weft yarn Y1 has the tension force of expectation, consequently carries swimmingly weft yarn Y1.The second series nozzle 4A is used for thereby weft yarn Y1 is pulled out from storage Weft handling device 21A the resistance of pulling out that reduces weft yarn Y, and therefore reduces the load on the first series nozzle 3A and Weft insertion nozzle 2A, has consequently reduced air consumption.In addition, the shorter length of the 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 inner diameter D 1 of the 3rd accelerating tube 41 of Weft insertion nozzle 2A is substantially equal to or close to the inner diameter D 2 of the first accelerating tube 23 of the first series nozzle 3A.The inner diameter D 2 of the first accelerating tube 23 of the first series nozzle 3A is greater than the inner diameter D 3 of the second accelerating tube 27 of the second series nozzle 4A.The combination of the length that shortens that reduces inner diameter D 3 and the second accelerating tube 27 of the second accelerating tube 27 helps easily will be for making weft yarn Y1 be set as less optimum value in the power that the second series nozzle 4A walks.
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 at the place, non-operative position that the solid line by Fig. 6 A, Fig. 6 B represents.When in wefting insertion operating period during at controlled moment operation stepper motor 34 (with reference to figure 3), brake lever 36 is pivoted to the operating position that is represented by double dot dash line on motor drive shaft 35, so that the weft yarn of the weft yarn entrance 24 of the brake lever 36 downward first series nozzle 3A of promotion and the second series nozzle 4A exports the weft yarn Y1 between 30.Particularly, as shown in double dot dash line, position and the weft yarn guide part 33 of weft yarn Y1 between weft yarn guide part 33 and weft yarn entrance 24 is pushed down into the shape (with reference to figure 6) of W with position between weft yarn outlet 30, and accepts braking action.
Carry out in the manner as described below wefting insertion according to the weft inserting apparatus 1 of the first embodiment.When selecting weft yarn Y1 to be used 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 weft yarn latch (not shown) discharged the weft yarn Y that stores up in Weft handling device 21A, stored weft yarn Y1 was pulled out by the second series nozzle 4A.The second series nozzle 4A bears opposing from the major part that storage Weft handling device 21A pulls out the resistance of weft yarn Y, 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 be used for weft yarn Y is walked from the first series nozzle 3A that storage Weft handling device 21A pulls out the resistance of weft yarn Y.Therefore, the weft yarn Y that is pulled out by the second series nozzle 4A is transported to Weft insertion nozzle 2A by the jet power of being strengthened by the first accelerating tube 23 of the first series nozzle 3A.The weft yarn Y that shifts out from the first series nozzle 3A further is subject to jet power 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 making weft yarn Y to walk, in order to can realize the high speed wefting insertion of weft yarn Y in air-jet loom.
When weft yarn Y in air-jet loom ruptured or forms new fabric, weft yarn Y1 need to pass weft inserting apparatus 1A.Be configured to according to the weft inserting apparatus 1A of the first embodiment, the weft yarn passage that is used 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 end of weft yarn Y1 is placed and allowed near the weft yarn entrance 28 of the second series nozzle 4A compressed air is fed to the second series nozzle 4A, just make weft yarn Y1 move and arrive the weft yarn outlet 26 of the first series nozzle 3A along straight weft yarn passage under jet impact.Therefore, can carry out weft yarn by single operation and pass the second and first series nozzle 4A and 3A.Can compressed air be fed to Weft insertion nozzle 2A by the front end of weft yarn Y is placed and allowed near the weft yarn entrance 40 of Weft insertion nozzle 2A, the weft yarn Y that will arrive the weft yarn outlet 26 of the first series nozzle 3A is incorporated in Weft insertion nozzle 2A.Complete like this weft yarn Y and passed weft inserting apparatus 1A.
Below with reference to the weft inserting apparatus of Fig. 7 description according to the second embodiment.The second embodiment from the first embodiment different aspect the configuration of weft brake.To represent with identical reference marker those parts or the element corresponding with the corresponding component of the first embodiment, and with the descriptions thereof are omitted.In a second embodiment, the weft brake that is represented by 44A is configured in the upstream of the second series nozzle 4A.The support 45 that is used as the supporting member of weft brake 44A is fixed to the retainer 29 of the second series nozzle 4A by bolt 46, and L bracket 47 is fixed to support 45 by bolt 48. Support 45,47 cooperations form the U-shaped support.
The stepper motor 49 of the part of formation weft brake 44A is by being fixed to support 45 such as securing member (not shown) 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 the 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 in wefting insertion operating period at controlled moment operation stepper motor 49 and when making 55 rotation of motor drive shaft retainer, brake lever 54 is preventing that from retainer 50 non-operative position that brake lever 54 moves up is pivoted to the operating position below weft yarn guide part 52 on motor drive shaft 53.
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 the end thereon at its downstream end place.Weft yarn outlet 57 and weft yarn entrance 58 are made by pottery.Threading nozzle 56 is connected to pipe 11, and compressed air can pass this pipe 11 and supply from primary tank 12 (Fig. 1) by the valve (not shown).
The weft yarn passage that extends through the second series nozzle 4A, weft brake 44A and threading nozzle 56 extends linearly along axis X.Therefore, when weft yarn Y is placed and passes pipe 11 compressed air is fed to threading nozzle 56 near the weft yarn entrance 58 of threading nozzle 56, can easily carry out weft yarn Y and pass weft brake 44A and the second series nozzle 4A.In addition, the weft yarn entrance 28 of the weft yarn of threading nozzle 56 outlet the 57 and second series nozzle 4A is used separately as the upstream and downstream weft yarn guide part of weft brake 44A, and that weft brake 44A needed space is installed is minimum in order to make.In addition, the second series nozzle 4A, weft brake 44A and threading nozzle 56 are installed to support 45 and L bracket 47 unit that becomes one, so as the second series nozzle 4A, weft brake 44A and threading nozzle 56 easily arranged coaxial in weft inserting apparatus.
If the first series nozzle 3A (not shown in Fig. 7) and axis X arranged coaxial can carry out weft yarn with single operation so and pass the second and first series nozzle 4A, 3A.In a second embodiment, weft brake 44A and threading nozzle 56 can arrange discretely with the second series nozzle 4A.
The invention is not restricted to above-described embodiment, but can be as the practice in every way of following example ground.
(1) in the first embodiment, weft brake 7,7A, 7B can and the first series nozzle 3,3A, 3B arrange discretely so that be configured in respectively between the first series nozzle 3,3A, 3B and the second series nozzle 4,4A, 4B.In addition, except the weft yarn entrance 24 of the weft yarn of the second series nozzle 4,4A, 4B outlet the 30 or first series nozzle 3,3A, 3B, can independent weft yarn guide part be set respectively at least one of the upstream and downstream of weft brake 7,7A, 7B.
(2) extending through the weft yarn passage of the first series nozzle 3,3A, 3B, weft brake 7,7A, 7B and the second series nozzle 4,4A, 4B must be not aligned with each other along straight axis X, but weft yarn passage can be crooked.
(3) in the first embodiment, the 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 by the straight pipe with constant inner diameter, and the 3rd and first accelerating tube 41,23 at least one can be made by oviduct, its internal diameter increases to improve jet power along downstream direction.
(4) in the first embodiment, valve 8 to 10 can be replaced by single valve, in order to spraying 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 mutually.
Stepper motor 34 in (5) first and second embodiment, 49 can be replaced by servo motor or the motor that operates any other controlled type.

Claims (6)

1. the weft inserting apparatus of an air-jet loom comprises:
For latitude section;
The storage Weft handling device;
Slay;
Be arranged on the Weft insertion nozzle on described slay;
Be arranged on the upstream of described Weft insertion nozzle and have the first series nozzle of the first accelerating tube; And
Be arranged on the upstream of described the first series nozzle and have the second series nozzle of the second accelerating tube, it is characterized in that, the second accelerating tube of described the second series nozzle is shorter than the first accelerating tube of described the first series nozzle.
2. the weft inserting apparatus of air-jet loom according to claim 1, is characterized in that, the internal diameter of the second accelerating tube of described the second series nozzle is less than the internal diameter of the first accelerating tube of described the first series nozzle.
3. the weft inserting apparatus of air-jet loom according to claim 1, wherein weft yarn passes described the first series nozzle and described the second series nozzle, and is formed with weft yarn passage, and weft yarn passes along this weft yarn passage, and described weft inserting apparatus also comprises:
The weft brake that is arranged between described the first series nozzle and described the second series nozzle and is passed by described weft yarn, it is characterized in that, described the first series nozzle, described weft brake and described the second series nozzle configure coaxially, extend through linearly described the first series nozzle, described weft brake and described the second series nozzle for use in the described weft yarn passage of weft yarn.
4. the weft inserting apparatus of air-jet loom according to claim 3, wherein said the first series nozzle comprises the weft yarn entrance, wherein said the second series nozzle comprises the weft yarn outlet, wherein said weft brake comprises the weft yarn guide part, it is characterized in that, described weft brake is fixed to described the first series nozzle, and wherein said weft yarn entrance and described weft yarn export each and use the weft yarn guide part that acts on described weft brake.
5. the weft inserting apparatus of the described air-jet loom of according to claim 1 to 4 any one, is characterized in that, described weft inserting apparatus also comprises the connecting portion that described the first series nozzle and described the second series nozzle are linked together.
6. the weft inserting apparatus of air-jet loom according to claim 1, wherein weft yarn passes described the first series nozzle and described the second series nozzle, and is formed with weft yarn passage, and weft yarn passes along this weft yarn passage, and described weft inserting apparatus also comprises:
Be arranged on the upstream of described the second series nozzle and the weft brake that is passed by described weft yarn; And
Be arranged on the upstream of described weft brake and the threading nozzle that is passed by described weft yarn, it is characterized in that, described threading nozzle, described weft brake and described the second series nozzle arrange coaxially, extend through linearly described threading nozzle, described weft brake and described the second series nozzle for use in the described weft yarn passage of weft yarn.
CN201210378110.2A 2011-09-14 2012-09-13 The weft inserting apparatus of air-jet loom Active CN103103686B (en)

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JP2011200049A JP5321662B2 (en) 2011-09-14 2011-09-14 Weft insertion device for air jet loom

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US20230243075A1 (en) * 2022-01-28 2023-08-03 Tsudakoma Kogyo Kabushiki Kaisha Weft insertion method and weft insertion device for air jet loom

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Publication number Priority date Publication date Assignee Title
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

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