CN104404697A - Auxiliary nozzle structure for fancy yarns and internal airflow-accelerating method thereof - Google Patents
Auxiliary nozzle structure for fancy yarns and internal airflow-accelerating method thereof Download PDFInfo
- Publication number
- CN104404697A CN104404697A CN201410604271.8A CN201410604271A CN104404697A CN 104404697 A CN104404697 A CN 104404697A CN 201410604271 A CN201410604271 A CN 201410604271A CN 104404697 A CN104404697 A CN 104404697A
- Authority
- CN
- China
- Prior art keywords
- air
- flow
- jet pipe
- piston
- round buss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- D03D47/302—Auxiliary nozzles
-
- 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
- D03D47/3026—Air supply systems
- D03D47/3033—Controlling the air supply
- D03D47/304—Controlling of the air supply to the auxiliary nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention provides an auxiliary nozzle structure for fancy yarns. The auxiliary nozzle structure comprises a round sleeve and a spraying pipe, wherein the round sleeve and the spraying pipe are mutually connected, the spraying pipe is an upper-flat lower-round hollow pipe, the spraying pipe is formed by sequentially connecting a cylinder, a flat body and a head end from bottom to top, and the cylinder is connected with the round sleeve; a piston and a piston seat which are mutually matched are arranged in the round sleeve, a block is arranged on an inner wall at the connecting part of the spraying pipe and the round sleeve, and spraying holes are formed in the head end of the spraying pipe. The invention also provides an internal airflow-accelerating method of the auxiliary nozzle structure for the fancy yarns. Compared with the prior, the auxiliary nozzle structure and the internal airflow-accelerating method of the auxiliary nozzle structure provided by the invention can meet the requirements of yarns, such as the fancy yarns, with lower yarn count and looser yarn structures on the airflow property of an auxiliary nozzle, i.e. 'softness', 'high speed' and 'large flow quantity', so that the variety adaptability of an air-jet loom is improved.
Description
Technical field
The present invention relates to textile machine processing and manufacturing field, particularly relate to air-flow accelerated method in a kind of pilot jet structure for fancy yarn and pilot jet.
Background technology
Modern air-jet weaving equipment, with the advantage of its high speed, high yield, high-quality, saving of labor, low noise, Low investment, obtains in recent years and develops fast, show the bright prospects of loom of new generation.Modern air-jet weaving equipment extensively adopts the filling insertion way of main burner+pilot jet+special-shaped reed, has widened and has weaved kind and fabric width, and makes to weave high sley fabric and filament yarn fabric becomes possibility.The reed width of modern air-jet weaving equipment, between 150 ~ 340cm, reaches as high as 390cm.Because the frictional force produced between used in jet loom jet-stream wind and yarn carrys out wefting insertion, do not have the weight of shuttle and the frictional force with yarn reed, therefore its speed occupies first of various shuttleless loom, and the speed of a motor vehicle is up to 2000r/min, entering latitude rate and can reach 3000m/min, is 4 ~ 9 times of fly-shuttle loom.
In recent years, the continuous intensification be familiar with pneumatic picking mechanism along with people, the varietal adaptation of air-jet loom obtained great expansion, almost can cover the variety range of arrow shaft and water jet looms.But we find in production process, weaving the heavily fabrics such as cowboy should high, the quality of Rapier looms efficiency; And weave long filament kind fabric or water jet looms is efficiently high-quality.
Air-jet loom is still mainly used in the production and processing of light and thin type fabric, kind still has certain limitation, lower for some yam counts especially, and the yarn that yarn texture is comparatively loose, as fancy yarn.Its yam count is low, and yarn qualities is comparatively large, needs larger air flow rate to carry weft yarn through shed open; It is very fast that larger yarn qualities also makes filling speed decay, and under the prerequisite that pilot jet quantity is certain, needs the speed that each pilot jet provides higher; Its loose yarn texture also requires auxiliary gaseous blast comparatively " soft ", and the air-flow of " fiercely " can destroy and even blow staplings yarn.
Summary of the invention
The technical problem to be solved in the present invention is to provide air-flow accelerated method in a kind of pilot jet structure for fancy yarn and pilot jet, to meet this kind of yam count of fancy yarn is lower, yarn texture is comparatively loose yarn to the requirement of assistant nozzle air current character, improve the varietal adaptation of air-jet loom.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of pilot jet structure for fancy yarn, it is characterized in that: comprise the round buss and jet pipe that are connected to each other, jet pipe is the hollow pipe of upper flat lower circle, jet pipe is connected to form successively by cylinder, bluff body and head end from bottom to up, and cylinder is connected with round buss; Be provided with the piston and piston seat of working in coordination in round buss, jet pipe and round buss junction inwall are provided with grade lattice, and the head end of jet pipe is provided with spray orifice.
Preferably, described round buss and jet pipe are Split type structure, adopt the seamless consolidation of resin glue.
Preferably, described round buss is equal with jet pipe external diameter.
Preferably, described jet pipe adopts stainless steel thin-wall flat tube stamping.
Preferably, the diameter of described piston is greater than the internal diameter of described round buss.
Preferably, in the plane that the head end that described spray orifice is located at described jet pipe tilts, described spray orifice is turbination spray orifice, and described spray orifice inwall aperture is less than outer wall aperture.
Present invention also offers a kind of for air-flow accelerated method in the pilot jet of fancy yarn, adopt the above-mentioned pilot jet structure for fancy yarn, it is characterized in that: the method is made up of following 3 steps:
Step 1: non-for gaseity time, piston and piston seat are in bottom round buss due to the effect of gravity; During air feed, air-flow flows into bottom round buss, runs into the obstruction of piston, and then promotes piston and piston seat and move up; Now, occur an annular channel between piston and round buss inwall, air-flow annularly runner flows into, and carries out first time and accelerates;
Step 2: air-flow flows out from the space between round buss inwall and piston seat, enters the cylindrical region of jet pipe, and air-flow travel direction adjustment in this region, second time acceleration is carried out in the bluff body region that air-flow enters jet pipe subsequently;
Step 3: air-flow enters the head end of jet pipe, runs into spray orifice ejection; Carry out third time at the inner wall hole place air-flow of spray orifice to accelerate; Air-flow penetrates along spray orifice, and the flow of air-flow increases, and air-flow also becomes softer.
Compared with prior art, in pilot jet structure provided by the invention and pilot jet, air-flow accelerated method can meet the yam counts such as fancy yarn are lower, yarn texture is comparatively loose yarn to the requirement of assistant nozzle air current character, i.e. " soft ", " at a high speed " and " large discharge ".Piston structure in round buss makes air-flow can carry out compression acceleration, drastically increases the speed entering air-flow in jet pipe, and the jet pipe of flat has carried out second time to air-flow again and compressed acceleration, further improves the speed of air-flow.Spray orifice has carried out third time compression to air-flow in jet pipe, and spray orifice exit air velocity is close to even reaching velocity of sound.Single hole ensure that the convergence of air-flow, and the design of turbination spray orifice makes inner high speed torrent have a buffering course in the brief moment ejected, and namely becomes more " soft ", also appropriately increases jet-stream wind flow simultaneously.
Accompanying drawing explanation
Fig. 1 is the pilot jet structural representation for fancy yarn provided by the invention;
Fig. 2 is round buss part-structure enlarged diagram;
Fig. 3 is the structural representation in a-a cross section in Fig. 2;
Fig. 4 is the structural representation in b-b cross section in Fig. 2;
Fig. 5 is the structural representation in c-c cross section in Fig. 2;
Fig. 6 is jet orifice structure schematic diagram;
Fig. 7 is jet orifice structure sectional view;
Fig. 8 is the air flow direction figure in pilot jet;
Fig. 9 is round buss section air flow direction enlarged diagram in Fig. 8.
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Fig. 1 is the pilot jet structural representation for fancy yarn provided by the invention, and the described pilot jet structure for fancy yarn comprises round buss 1 and jet pipe 2, and round buss 1 and jet pipe 2 are Split type structure, adopts the seamless consolidation of resin glue.Described round buss 1 is equal with jet pipe 2 external diameter.Described jet pipe 2 is the hollow pipe of upper flat lower circle, is connected to form successively from bottom to up by cylinder, bluff body 3 and head end 4, adopts stainless steel thin-wall flat tube stamping.Seamlessly transit between round buss 1, jet pipe 2 each several part.
Composition graphs 2, has a piston 6 and piston seat 7 in round buss 1, piston 6 and piston seat 7, for being flexibly connected, conveniently change piston seat 7 diameter to regulate air velocity and flow according to different yarns type requirements.Composition graphs 3 ~ Fig. 5, has two shelves lattice, 8, two shelves lattice 8 and jet pipe 2 inwall to be seamless bonding with the upper and lower inwall in round buss 1 junction bottom jet pipe 2.The height of shelves lattice equals the thickness of piston seat bottom groove, is 1 ~ 2mm.The diameter D2 of piston 6 is greater than round buss 1 internal diameter D1.Be provided with one in round buss 1 for stopping that piston seat 7 continues the sidewall moved ahead, piston seat 7 top equals piston seat 7 sliding distance d4 farthest apart from the distance d3 of this sidewall.D2＝3.6～3.7mm，D1＝3.5～3.6mm，d3＝d4＝2.5mm。Throat opening area can be changed, to adapt to different types of yarn needs by the diameter changing piston seat 7.
Composition graphs 6 and Fig. 7, the head end 4 of pilot jet has spray orifice 5, in the plane that spray orifice 5 dozens tilts at head end 4.Spray orifice 5 is turbination spray orifice, and inwall aperture is less than outer wall aperture.In the present embodiment, back taper spray orifice 5 inner wall hole diameter is Φ 1=1.08mm, and outer wall bore dia is Φ 2=2mm.
Above-mentioned pilot jet structure for air-jet loom, composition graphs 8 and Fig. 9, in pilot jet, air-flow accelerated method concrete steps are as follows:
Step 1: non-for gaseity time, piston 6 and piston seat 7 are in bottom round buss 1 due to the effect of gravity.During air feed, air-flow flows into bottom round buss 1, runs into the obstruction of piston 6, and then promotes piston 6 and piston seat 7 and move up.Now, occur an annular channel between piston 6 and round buss 1 inwall, air-flow annularly runner flows into, and carries out first time and accelerates.
Step 2: air-flow flows out from the space between round buss 1 inwall and piston seat 7, enters the cylindrical region of jet pipe 2.In this region, air-flow carries out certain direction adjustment.Second time acceleration is carried out in bluff body 3 region that air-flow enters jet pipe 2 subsequently.
Step 3: air-flow enters the head end 4 of jet pipe 2, runs into spray orifice 5 and sprays.Carry out third time at the inner wall hole place air-flow of spray orifice 5 to accelerate.Air-flow penetrates along spray orifice 5, and because outer wall aperture is greater than inwall aperture, the flow of air-flow is increased, and air-flow also becomes more " soft ".Because pipe thickness is very little, be 0.4 ~ 0.5mm, the abated effect therefore for air-flow velocity is negligible.
Through three grades of acceleration, air velocity is significantly improved, outlet 20cm place air velocity improves about 30%, exit flow have also been obtained increase, exit flow increase about 10%, air-flow is also softer, meets the yam counts such as fancy yarn are lower, yarn texture is comparatively loose yarn to the requirement of assistant nozzle air current character, further increases the varietal adaptation of air-jet loom.
Apparent, it is lower that other except fancy yarn possess yam count, and the comparatively loose yarn of yarn texture is also within scope involved in the present invention.
Claims (7)
1. the pilot jet structure for fancy yarn, it is characterized in that: comprise the round buss (1) and jet pipe (2) that are connected to each other, jet pipe (2) is the hollow pipe of upper flat lower circle, jet pipe (2) is connected to form successively by cylinder, bluff body (3) and head end (4) from bottom to up, and cylinder is connected with round buss (1); The piston (6) and piston seat (7) of working in coordination is provided with in round buss (1), jet pipe (2) and round buss (1) junction inwall are provided with grade lattice (8), and the head end (4) of jet pipe (2) is provided with spray orifice (5).
2. a kind of pilot jet structure for fancy yarn as claimed in claim 1, is characterized in that: described round buss (1) and jet pipe (2) are Split type structure, adopts the seamless consolidation of resin glue.
3. a kind of pilot jet structure for fancy yarn as claimed in claim 1 or 2, is characterized in that: described round buss (1) is equal with jet pipe (2) external diameter.
4. a kind of pilot jet structure for fancy yarn as claimed in claim 1, is characterized in that: described jet pipe (2) adopts stainless steel thin-wall flat tube stamping.
5. a kind of pilot jet structure for fancy yarn as claimed in claim 1, is characterized in that: the diameter (D2) of described piston (6) is greater than the internal diameter (D1) of described round buss (1).
6. a kind of pilot jet structure for fancy yarn as claimed in claim 1, it is characterized in that: in the plane that the head end (4) that described spray orifice (5) is located at described jet pipe (2) tilts, described spray orifice (5) is turbination spray orifice, and described spray orifice (5) inwall aperture is less than outer wall aperture.
7., for an air-flow accelerated method in the pilot jet of fancy yarn, adopt as claimed in claim 1 for the pilot jet structure of fancy yarn, it is characterized in that: the method is made up of following 3 steps:
Step 1: non-for gaseity time, piston (6) and piston seat (7) are in round buss (1) bottom due to the effect of gravity; During air feed, air-flow from round buss (1) bottom flow into, run into the obstruction of piston (6), so promote piston (6) and piston seat (7) move up; Now, occur an annular channel between piston (6) and round buss (1) inwall, air-flow annularly runner flows into, and carries out first time and accelerates;
Step 2: air-flow flows out from the space between round buss (1) inwall and piston seat (7), enter the cylindrical region of jet pipe (2), and air-flow travel direction adjustment in this region, second time acceleration is carried out in bluff body (3) region that air-flow enters jet pipe (2) subsequently;
Step 3: air-flow enters the head end (4) of jet pipe (2), runs into spray orifice (5) ejection; Carry out third time at the inner wall hole place air-flow of spray orifice (5) to accelerate; Air-flow is along spray orifice (5) injection, and the flow of air-flow increases, and air-flow also becomes softer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604271.8A CN104404697B (en) | 2014-10-30 | 2014-10-30 | A kind of pilot jet structure for fancy yarn and interior air-flow accelerated method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604271.8A CN104404697B (en) | 2014-10-30 | 2014-10-30 | A kind of pilot jet structure for fancy yarn and interior air-flow accelerated method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104404697A true CN104404697A (en) | 2015-03-11 |
| CN104404697B CN104404697B (en) | 2015-12-09 |
Family
ID=52642359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604271.8A Expired - Fee Related CN104404697B (en) | 2014-10-30 | 2014-10-30 | A kind of pilot jet structure for fancy yarn and interior air-flow accelerated method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104404697B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346343A (en) * | 1993-06-03 | 1994-12-20 | Hokuriku Seikei Kogyo Kk | Weft-insertion nozzle for air-jet loom |
| JPH10273852A (en) * | 1997-03-27 | 1998-10-13 | Nissan Tecsys Kk | Valve apparatus for weft inserting for air jet loom |
| CN2632110Y (en) * | 2003-03-29 | 2004-08-11 | 张平国 | Auxiliary nozzle for air jet loom to speed up |
| CN1928179A (en) * | 2006-09-28 | 2007-03-14 | 东华大学 | High speed streamline auxiliary nozzle |
| CN200996098Y (en) * | 2006-09-11 | 2007-12-26 | 中国兵器工业第二一三研究所 | Concave aided nozzle of jetting loom |
| CN101158084A (en) * | 2007-10-09 | 2008-04-09 | 江苏万工科技集团有限公司 | Main blowing system for weft insertion |
-
2014
- 2014-10-30 CN CN201410604271.8A patent/CN104404697B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346343A (en) * | 1993-06-03 | 1994-12-20 | Hokuriku Seikei Kogyo Kk | Weft-insertion nozzle for air-jet loom |
| JPH10273852A (en) * | 1997-03-27 | 1998-10-13 | Nissan Tecsys Kk | Valve apparatus for weft inserting for air jet loom |
| CN2632110Y (en) * | 2003-03-29 | 2004-08-11 | 张平国 | Auxiliary nozzle for air jet loom to speed up |
| CN200996098Y (en) * | 2006-09-11 | 2007-12-26 | 中国兵器工业第二一三研究所 | Concave aided nozzle of jetting loom |
| CN1928179A (en) * | 2006-09-28 | 2007-03-14 | 东华大学 | High speed streamline auxiliary nozzle |
| CN101158084A (en) * | 2007-10-09 | 2008-04-09 | 江苏万工科技集团有限公司 | Main blowing system for weft insertion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104404697B (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104404697B (en) | A kind of pilot jet structure for fancy yarn and interior air-flow accelerated method thereof | |
| CN105133151B (en) | The Weft inserting device and its weft insertion technique of a kind of air-jet loom | |
| CN206495020U (en) | A kind of single circular cone spray orifice pilot jet for air-jet loom | |
| CN104389089B (en) | For the production of main nozzle of jet loom structure and the Weft insertion method thereof of elastic force jean | |
| CN206529577U (en) | The water-jet loom of ring jet power-assisted wefting insertion | |
| CN103184648B (en) | Auxiliary nozzle of air jet loom | |
| CN203834112U (en) | Auxiliary nozzle device and wefting insertion system for air jet loom | |
| CN106757691A (en) | A kind of air-jet loom | |
| CN104790101B (en) | A kind of air-jet loom in wide size | |
| CN103993410B (en) | Auxiliary nozzle air path system for bidirectional wefting insertion air jet loom | |
| CN204625925U (en) | A kind of air-jet loom | |
| CN104342826B (en) | A kind of torque jet structure, installation method and weft yarn head end twisting method | |
| CN206529576U (en) | The water-jet loom of gas-liquid mixed wefting insertion | |
| CN107974745A (en) | New three shell fabric and its production method | |
| CN206736476U (en) | A kind of Chui Bian mechanisms of air-jet loom machine | |
| CN204589482U (en) | A kind of air-jet loom with air-guide rod | |
| CN204589481U (en) | A kind of air-jet loom in wide size | |
| CN206298703U (en) | A kind of waste edge yarn device of loom | |
| CN204589485U (en) | Air-jet loom | |
| CN207331177U (en) | A kind of anti-rebound spray core | |
| CN105155104A (en) | Energy-saving round hole auxiliary nozzle for air jet loom | |
| CN206529575U (en) | The water-jet loom of multichannel wefting insertion | |
| CN104790099B (en) | A kind of air-jet loom with air-guide rod | |
| CN104790100B (en) | A kind of air-jet loom | |
| CN103696100A (en) | Pressure reducing throttle mechanism for air jet loom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20181030 |