CN102199834B - Back beam driving mechanism for air-jet weaving machine - Google Patents
Back beam driving mechanism for air-jet weaving machine Download PDFInfo
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- CN102199834B CN102199834B CN2010105482638A CN201010548263A CN102199834B CN 102199834 B CN102199834 B CN 102199834B CN 2010105482638 A CN2010105482638 A CN 2010105482638A CN 201010548263 A CN201010548263 A CN 201010548263A CN 102199834 B CN102199834 B CN 102199834B
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- connecting rod
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Abstract
The invention provides a back beam driving mechanism for an air-jet weaving machine. The mechanism comprises a slider arranged on a slide seat in a sliding manner, a back beam hinged with the slider, a first substructure and a second substructure, wherein the first substructure and the second substructure are used for driving the back beam and are respectively arranged at the two sides of the back beam, the first substructure comprises a first connecting rod and a first crank; the second substructure comprises a second connecting rod and a second crank; one end of the first connecting rod and one end of the second connecting rod are respectively hinged with the two ends of the back beam; one end of the first crank is hinged with the other end of the first connecting rod in a rotating manner; one end of the second crank is hinged with the other end of the second connecting rod in a rotating manner; the other end of the first crank and the other end of the second crank are respectively hinged with a drive shaft driven by a motor in a rotating manner; and the drive shaft drives the first crank and the second crank to provide symmetric forces to the back beam. The mechanism has the advantages that new adjustable factors are added to input motion of the mechanism, thus effectively reducing warp end breakage and improving the weaving productivity.
Description
Technical field
The present invention relates to a kind of drive unit, particularly a kind of back rest driving mechanism that is used for air-jet loom.
Background technology
The Weft insertion method of air-jet loom is to use the compressed air stream weft traction, and the weft yarn band is crossed shed open.Back rest driving mechanism utilizes the back rest to move and accomplishes the reverse compensation of warp thread when opening of upper and lower layer warp thread is peaceful combines.Only 100-200 rev/min of loom rotating speed in the past; The back rest driving mechanism of low speed loom is just accomplished motion; Rotating speed 900-1000 rev/min of air-jet loom now, the design of the back rest driving mechanism of original low speed loom can not have been satisfied the needs of present air-jet loom, does not have firmly because low speed back rest driving mechanism produces when high-speed cruising; Cause the rod member vibration big, cause the fracture of warp thread.The main resistance of loom high speed is to beat up and harness motion, and back rest motion is a resistance equally, and the vibration of the back rest is presented as the plane motion of the back rest, and translation adds rotation, and power and moment direction are becoming always.Thereby need design new back rest driving mechanism to reduce dynamic force and moment as far as possible from the reality of high-speed air-jet looms.
Summary of the invention
For overcoming the problems referred to above of the prior art, the invention provides a kind of back rest driving mechanism of air-jet loom.
The technical scheme that the present invention adopts is: a kind of back rest driving mechanism of air-jet loom; The back rest that comprises the slide block that is mounted slidably on a slide, is hinged with slide block, first minor structure that is in back rest both sides respectively and second minor structure that is used to drive the back rest; First minor structure comprises the first connecting rod and first crank; Second minor structure comprises the second connecting rod and second crank; One end of first connecting rod and an end of second connecting rod are hinged with the both ends of the back rest respectively; One end of first crank is hinged with the other end of first connecting rod rotationally, and an end of second crank is hinged with the other end of second connecting rod rotationally, and the other end of the first crank the other end and second crank is hinged with driving shaft by driven by motor respectively rotationally; The driving shaft fixed in position is on frame, and driving shaft drives first crank and second crank is that the back rest provides symmetric force.
Further, slide block and slide have two respectively, and two slide blocks are connected through bearing with the both ends of the back rest respectively, and the moving direction of slide block is consistent with back rest moving direction, and the slide block band the back rest and slided along slide.
Further, the length of first connecting rod equals the length of second connecting rod, and the length of first crank equals the length of second crank.
Again further, first minor structure and second minor structure keep being synchronized with the movement.
Preferably, slide block is provided with breach, is provided with baffle plate in the position near breach of slide, and baffle plate is used to limit the position of the back rest.
Compared with prior art; The present invention has advantage: added slide block in the back rest driving mechanism of the present invention; In back rest driving mechanism input motion, add new adjustable factors, the motion of the restriction back rest, the back rest moves along slide block in the work; Change the plane motion of the back rest into slip, the motion of the back rest just becomes back and forth straight moving or reciprocally swinging.It is mild that back rest motion becomes, and improved the speed capacity of warp thread, weaves productivity ratio and created advantage for reducing end breakage and raising.
Description of drawings
Fig. 1 is the sketch map of the back rest driving mechanism of prior art;
Fig. 2 is the sketch map of back rest driving mechanism of the present invention;
Fig. 3 is the mechanism configuration sketch of back rest driving mechanism of the present invention;
Fig. 4 is the sketch map of the slide block of back rest driving mechanism of the present invention.
Among the figure: 1, the back rest; 2, first minor structure; 21, first connecting rod; 22, first crank; 3, second minor structure; 31, second connecting rod; 32, second crank; 4, slide; 41, slide block; 5, driving shaft.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby more remove clear and definite defining so that advantage of the present invention and characteristic are easier to it will be appreciated by those skilled in the art that protection scope of the present invention made.
Shown in Figure 1 is back rest driving mechanism of the prior art, is double rocker mechanism, and all warp thread are walked around from back rest surface; In the high speed weaving process, back beam vibration is big, and rod member is stressed big; Increased the load of warp thread, along with the raising of warp tension, end breakage significantly rises; And if warp end break is too frequent, the superiority of high-speed weaving machine will be cancelled.
Consult Fig. 2, Fig. 3, the back rest driving mechanism of air-jet loom of the present invention comprises the slide block 41 that is mounted slidably on slide 4, and wherein slide block 41 has two respectively with slide 4, and two slide blocks 41 are connected through bearing with the both ends of the back rest 1 respectively; The back rest 1 that is hinged with slide block 41; Be used to drive first minor structure 2 that is in the back rest 1 both sides respectively and second minor structure 3 of the back rest 1; First minor structure 2 comprises the first connecting rod 21 and first crank 22; Second minor structure 3 comprises the second connecting rod 31 and second crank 32; The length of first connecting rod 21 equals the length of second connecting rod 31, and the length of first crank 22 equals the length of second crank 32, and an end of first connecting rod 21 and an end of second connecting rod 31 are hinged with the both ends of the back rest 1 respectively; One end of first crank 22 is hinged with the other end of first connecting rod 21 rotationally; One end of second crank 32 is hinged with the other end of second connecting rod 31 rotationally, and the other end of first crank, 22 the other end and second crank 32 is hinged with driving shaft 5 by driven by motor respectively rotationally, and driving shaft 5 fixed in position are on frame 6; Driving shaft 5 drives first cranks 22 and for the back rest 1 symmetric force is provided with second crank 33, and first minor structure 2 and 3 maintenances of second minor structure are synchronized with the movement.
As shown in Figure 4, also be provided with breach on the slide block 41, be provided with baffle plate 42 in the position near breach of slide 4, baffle plate 42 is used to limit the position of the back rest 1.In the course of the work, first minor structure 2 and the same workpiece back rest 2 of second minor structure, 3 driven in common, there is the two-way driving force in mechanism, and warp thread involves the back rest 1 and driven by motor driving shaft 5; Warp thread is distributed in the back rest 1 surface, and shed open opens, and the warp thread tractive back rest 1 moves to the heald frame direction, and warp thread is in the inclined to one side wefting insertion side of the distribution of the back rest; Because of the cloth width of cloth less than reed width, the back rest place of catching the latitude side does not generally have warp thread, therefore; Back beam stress is asymmetric, and at this moment, driving shaft 5 transmissions, first crank 22 and second crank 32 provide symmetric force for the back rest; Because of two cover slides 4 lay respectively at bearing guard place, the back rest 1 both sides with slide block 41, and slide block 41 is hinged with the back rest 1, and slide block 41 is being with the back rest 1 to slide along slide 4; Do not relatively move between the slide block 41 and the back rest 1, the shift position that set baffle plate 42 can limit the back rest 1 on the slide 4 prevents that the back rest 1 mobile range from job failure taking place greatly; Slide block 41 is for the motion of workpiece provides negative consequence, and driving mechanism of the present invention uses slide block structure, has suppressed the transfer up and down of warp thread; Reduce the end breakage rate of warp thread, improved operating efficiency, guaranteed the quality of product.
More than specific embodiment of the present invention is illustrated; But protection content of the present invention is not only limited to above embodiment; In the technical field, the common knowledge of a GPRS just can be carried out diversified change in its technological main idea scope under of the present invention.
Claims (6)
1. the back rest driving mechanism of an air-jet loom; It is characterized in that: the back rest (1) that comprises the slide block (41) that is mounted slidably on slide (4), is hinged with said slide block (41), first minor structure (2) that is in the back rest (1) both sides respectively and second minor structure (3) that is used to drive the said back rest (1); Said first minor structure (2) comprises first connecting rod (21) and first crank (22); Said second minor structure (3) comprises second connecting rod (31) and second crank (32); One end of one end of said first connecting rod (21) and said second connecting rod (31) is hinged with the both ends of the said back rest (1) respectively; One end of said first crank (22) is hinged with the other end of said first connecting rod (21) rotationally; One end of said second crank (32) is hinged with the other end of said second connecting rod (31) rotationally; The other end of said first crank (22) the other end and said second crank (32) is hinged with driving shaft (5) by driven by motor respectively rotationally, and said driving shaft (5) fixed in position is on frame (6), and said driving shaft (5) drives said first crank (22) and second crank (33) provides symmetric force for the said back rest (1).
2. the back rest driving mechanism of a kind of air-jet loom according to claim 1, wherein, said slide block (41) and slide (4) have two respectively, and two slide blocks (41) are connected through bearing with the both ends of the said back rest (1) respectively.
3. the back rest driving mechanism of a kind of air-jet loom according to claim 1, it is characterized in that: the length of said first connecting rod (21) equals the length of second connecting rod (31).
4. the back rest driving mechanism of a kind of air-jet loom according to claim 1, it is characterized in that: the length of said first crank (22) equals the length of second crank (32).
5. the back rest driving mechanism of a kind of air-jet loom according to claim 1 is characterized in that: said first minor structure (2) keeps being synchronized with the movement with said second minor structure (3).
6. the back rest driving mechanism of a kind of air-jet loom according to claim 1; It is characterized in that: said slide block (41) is provided with breach; Be provided with baffle plate (42) in the position near said breach of said slide (4), said baffle plate (42) is used to limit the position of the said back rest (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105482638A CN102199834B (en) | 2010-11-13 | 2010-11-13 | Back beam driving mechanism for air-jet weaving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105482638A CN102199834B (en) | 2010-11-13 | 2010-11-13 | Back beam driving mechanism for air-jet weaving machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102199834A CN102199834A (en) | 2011-09-28 |
| CN102199834B true CN102199834B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105482638A Active CN102199834B (en) | 2010-11-13 | 2010-11-13 | Back beam driving mechanism for air-jet weaving machine |
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| CN (1) | CN102199834B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113618233A (en) * | 2021-09-07 | 2021-11-09 | 国家康复辅具研究中心 | Device and method for processing surface microstructure of non-planar implant material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB982770A (en) * | 1960-02-25 | 1965-02-10 | Thomas Hindle | Improvements in or relating to positive warp "let-off" motion for looms |
| JP3508372B2 (en) * | 1996-02-29 | 2004-03-22 | 株式会社豊田自動織機 | Method and apparatus for suppressing warp tension fluctuation in loom |
| JP2005240206A (en) * | 2004-02-25 | 2005-09-08 | Tsudakoma Corp | Let-off device for loom |
| CN2853830Y (en) * | 2005-12-12 | 2007-01-03 | 江苏万工科技集团有限公司 | Transmission mechanism of loom warp loosing device |
| CN201224808Y (en) * | 2008-06-17 | 2009-04-22 | 潍坊金蟀机械有限公司 | Active type slack thread adjusting apparatus |
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| CN102199834A (en) | 2011-09-28 |
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Effective date of registration: 20160918 Address after: 215223 Jiangsu Province, Wujiang District of Suzhou City Heng Shan Zhen Wan Ping Road Development Patentee after: Wujiang Wan Gong mechanical & electronic equipment corporation, Ltd Address before: 215223 Wujiang City, Jiangsu province wanpin town development road Patentee before: Jiangsu Wangong Science and Technology Group Co., Ltd. |