CN102560870B - Needle bed swing mechanism for multi-bar Raschel warp knitting machine - Google Patents
Needle bed swing mechanism for multi-bar Raschel warp knitting machine Download PDFInfo
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- CN102560870B CN102560870B CN201210005393.6A CN201210005393A CN102560870B CN 102560870 B CN102560870 B CN 102560870B CN 201210005393 A CN201210005393 A CN 201210005393A CN 102560870 B CN102560870 B CN 102560870B
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- connecting rod
- fuel tank
- eccentric wheel
- needle
- swing mechanism
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Abstract
The invention discloses a needle bed swing mechanism for a multi-bar Raschel warp knitting machine, which comprises a transmission spindle, an eccentric wheel fixedly mounted on the transmission spindle, an oil tank output bar, an upper swing arm, a looping swing arm shaft, a guide arm and a connecting rod support. One end of the upper swing arm is fixedly connected with the looping swing arm shaft, the other end of the upper swing arm is rotatably connected with the upper end of the oil tank output bar, the upper end of the guide arm is slidably connected with a grooved needle bed, the lower end of the guide arm is fixedly connected with the looping swing arm shaft, a stylet bed is slidably connected with the grooved needle bed, an eccentric bushing connecting rod and a triangular connecting rod are arranged between the eccentric wheel and the oil tank output bar, the lower end of the eccentric bushing connecting rod is sleeved on the eccentric wheel, the upper end of the eccentric bushing connecting rod is rotatably connected with the bottom end of the triangular connecting rod, the left upper end of the triangular connecting rod is rotatably connected with the connecting rod support, and the right upper end of the triangular connecting rod is rotatably connected with the lower end of the oil tank output bar. The coefficient of swing travel speed ratio of the needle bed swing mechanism is approximate to 1:1, the needle bed swing mechanism is well applicable to high-speed warp knitting and is simple in structure and reliable in operation, and a transmission circuit of the needle bed swing mechanism is short.
Description
Technical field
The present invention relates to a kind of lopping motion of warp knitting machine, particularly relate to the needle-bar swing mechanism in many comb Raschel looms lopping motions.
Background technology
The needle-bar of many comb Raschel loomss comprises the grooved needle bed that groove pin is installed and the nook closing member bed that nook closing member is installed, and needle-bar motion is moved up and down by needle-bar and needle-bar oscillating motion is composited.In warp knitting machine, moving up and down of needle-bar completed by corresponding needle-bar up-down mechanism and needle-bar swing mechanism respectively with the oscillating motion of needle-bar.In lopping motion, because needle-bar swing mechanism is very large on the knitting property impact of warp knitting machine, thereby particularly important.
The needle-bar swing mechanism of existing many comb Raschel loomss, as Chinese utility model patent ZL201020236036.7, name is called the disclosed a kind of structure of a kind of swing mechanism of needle core of grooved needle of warp loom, and it comprises transmission main shaft, is fixedly mounted on the connecting rod rack of eccentric wheel, connecting rod, lower swing arm, fuel tank take-off lever, top link, lopping arm shaft, leading arm and warp knitting machine on described transmission main shaft; One end of described top link is fixedly connected with described lopping arm shaft, and the upper end of the other end and described fuel tank take-off lever is rotationally connected; The upper end of described leading arm is slidably connected with the grooved needle bed that groove pin is installed, and the lower end of described leading arm is fixedly connected with described lopping arm shaft; Nook closing member bed and described grooved needle bed that nook closing member is installed are slidably connected, the lower end of described connecting rod is sleeved on described eccentric wheel, the lower end of one end of described lower swing arm and fuel tank take-off lever is rotationally connected with the upper end of described connecting rod respectively, the other end of described lower swing arm and described connecting rod rack are rotationally connected, described transmission main shaft is arranged in warp knitting machine fuel tank rotationally, and described lopping arm shaft is arranged on the supporting base on warp knitting machine fuel tank top rotationally.There is at work following defect in the needle-bar swing mechanism of this structure, because adopting Stefansson type planar six-bar linkage, it realizes the oscillating motion of grooved needle bed and nook closing member bed, thereby on the one hand, the oscillating stroke speed ratio factor of this swing mechanism is larger, be about 1 ︰ 1.5, thereby be unfavorable for braiding at a high speed, on the other hand, the oscillating stroke speed ratio factor of this swing mechanism is not only relevant with the kinetic characteristic of first order crank and rocker mechanism, and the coupler-point curve forming with first order connecting rod is relevant, thereby mechanism design difficulty is large, cause advanceto returntime ratio in Theoretical Design often with real work in advanceto returntime ratio error larger, thereby cause scrapping in a large number of parts.
Chinese invention patent ZL201010154168.X also discloses a kind of knitting needle bed swinging mechanism of warp knitting machine, it adopts plane eight-bar linkage to realize the oscillating motion of grooved needle bed and nook closing member bed, the swing mechanism of this structure, not only oscillating stroke speed ratio factor is larger, close to 1 ︰ 2, thereby be unfavorable for braiding at a high speed, and complex structure, drive path is long, and reliability is poor.
Summary of the invention
It is less that the technical problem to be solved in the present invention is to provide a kind of not only oscillating stroke speed ratio factor, close to 1 ︰ 1, thereby can be applicable at a high speed braiding, and simple in structure, design is convenient, drive path is short, the needle-bar swing mechanism of many combs Raschel looms of good reliability.
For solving the problems of the technologies described above, the needle-bar swing mechanism that the first of the present invention is combed Raschel looms more is that it comprises the transmission main shaft being arranged on rotationally in warp knitting machine fuel tank, the connecting rod rack that is fixedly mounted on eccentric wheel, fuel tank take-off lever, top link, lopping arm shaft, leading arm and warp knitting machine on described transmission main shaft; One end of described top link is fixedly connected with described lopping arm shaft, and the upper end of the other end and described fuel tank take-off lever is rotationally connected; The upper end of described leading arm is slidably connected with the grooved needle bed that groove pin is installed, and the lower end of described leading arm is fixedly connected with described lopping arm shaft; Nook closing member bed and described grooved needle bed that nook closing member is installed are slidably connected, between described eccentric wheel and fuel tank take-off lever, be provided with eccentric bushing connecting rod and delta link, the lower end of described eccentric bushing connecting rod is sleeved on described eccentric wheel, the upper end of described eccentric bushing connecting rod and the bottom of described delta link are rotationally connected, the left upper end of described delta link and described connecting rod rack are rotationally connected, and the lower end of the upper right side of described delta link and described fuel tank take-off lever is rotationally connected.
For solving the problems of the technologies described above, the needle-bar swing mechanism that the second of the present invention is combed Raschel looms more is that it comprises the transmission main shaft being arranged on rotationally in warp knitting machine fuel tank, the connecting rod rack that is fixedly mounted on eccentric wheel, fuel tank take-off lever, top link, lopping arm shaft, leading arm and warp knitting machine on described transmission main shaft; One end of described top link is fixedly connected with described lopping arm shaft, and the upper end of the other end and described fuel tank take-off lever is rotationally connected; The upper end of described leading arm is slidably connected with the grooved needle bed that groove pin is installed, and the lower end of described leading arm is fixedly connected with described lopping arm shaft; Nook closing member bed and described grooved needle bed that nook closing member is installed are slidably connected, between described eccentric wheel and fuel tank take-off lever, be provided with eccentric bushing connecting rod and delta link, the lower end of described eccentric bushing connecting rod is sleeved on described eccentric wheel, the upper end of described eccentric bushing connecting rod and the left upper end of described delta link are rotationally connected, the bottom of described delta link and described connecting rod rack are rotationally connected, and the lower end of the upper right side of described delta link and described fuel tank take-off lever is rotationally connected.
Adopt after said structure, because the present invention arranges eccentric bushing connecting rod and delta link between eccentric wheel and fuel tank take-off lever, thereby swing mechanism of the present invention adopts is the oscillating motion that watt (WATT) type planar six-bar linkage that a double rocker mechanism by a primary crank endplay device and follow-up series connection forms is realized grooved needle bed and nook closing member bed, this mechanism is when work, the average speed approximately equal of needle-bar reciprocally swinging, the time ratio of needle-bar reciprocally swinging is close to 1 ︰ 1, be that the oscillating stroke speed ratio factor of needle-bar is close to 1 ︰ 1, oscillating stroke speed ratio factor is less, make the acceleration extreme value of needle-bar less, thereby can be applicable to better braiding at a high speed.Again because the oscillating stroke speed ratio factor of swing mechanism of the present invention is only determined by primary crank endplay device, the reciprocally swinging of the driven member top link of double rocker mechanism is on not impact of advanceto returntime ratio, thereby swing mechanism design of the present invention is convenient, advanceto returntime ratio in Theoretical Design conforms to the advanceto returntime ratio in real work, thereby has greatly saved production cost.In addition, because the kinematic pair of swing mechanism of the present invention is Plane Rotation lower pair entirely, thereby simple in structure, easy to process, and drive path of the present invention is short, reliable operation.
As a kind of preferred embodiment of the present invention, between the lower end of described eccentric bushing connecting rod and eccentric wheel, be also provided with bearing, the lower end of described eccentric bushing connecting rod is contained on described eccentric wheel by this bearing holder (housing, cover).Adopt after such structure, can reduce eccentric bushing connecting rod and the eccentric wheel frictional force when rotating, extend its service life, and make the rotation of eccentric bushing connecting rod more flexible, work more reliable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the schematic diagram of mechanism of the first embodiment of the present invention's needle-bar swing mechanism of combing Raschel looms more.
Fig. 2 is the structural representation of needle-bar swing mechanism shown in Fig. 1.
Fig. 3 is the schematic diagram of mechanism of the second embodiment of the present invention's needle-bar swing mechanism of combing Raschel looms more.
Fig. 4 is the structural representation of needle-bar swing mechanism shown in Fig. 3.
The specific embodiment
Needle-bar swing mechanism referring to many combs Raschel looms of the first embodiment of the present invention shown in Fig. 1,2, comprises the transmission main shaft A being arranged on rotationally in warp knitting machine fuel tank
0, be fixedly mounted on described transmission main shaft A
0on eccentric wheel 1, fuel tank take-off lever 2, top link 3, lopping arm shaft C
0, leading arm 4 and warp knitting machine connecting rod rack; One end of described top link 3 and described lopping arm shaft C
0be fixedly connected with, the upper end C of the other end and described fuel tank take-off lever 2 is rotationally connected; The upper end 4-1 of described leading arm 4 is slidably connected by the first guide pillar 10 with the grooved needle bed 5 that groove pin 5-1 is installed, the lower end of described leading arm 4 and described lopping arm shaft C
0be fixedly connected with; The nook closing member bed 6 that nook closing member 6-1 is installed is slidably connected with described grooved needle bed 5 by the second guide pillar 11, and the knocking over needle-bar 12 that knocking over pin 12-1 is installed is fixedly mounted on the upper end 4-1 of described leading arm 4, described lopping arm shaft C
0be arranged on rotationally on the supporting base on warp knitting machine fuel tank top, between described eccentric wheel 1 and fuel tank take-off lever 2, be provided with eccentric bushing connecting rod 7 and delta link 8, the lower end A of described eccentric bushing connecting rod 7 arranges a through hole 7-1, the lower end A of eccentric bushing connecting rod 7 is sleeved on described eccentric wheel 1 by this through hole 7-1, the upper end of described eccentric bushing connecting rod 7 is rotationally connected by the bottom B of bearing pin and described delta link 8, the left upper end B of described delta link 8
0by minor axis 13 and bearing and described connecting rod rack, be rotationally connected the upper right side B of described delta link 8
1lower end by bearing pin and described fuel tank take-off lever 2 is rotationally connected.The needle-bar swing mechanism of this embodiment is by a primary crank endplay device A
0aB B
0follow-up series connection double rocker mechanism B again
0b
1c C
0watt (WATT) the type planar six-bar linkage forming is realized grooved needle bed 5, the oscillating motion of nook closing member bed 6 and knocking over needle-bar 12, this swing mechanism is when work, the input curve of eccentric wheel 1 is identical with the curve of output direction of top link 3, grooved needle bed 5, the average speed approximately equal of nook closing member bed 6 and knocking over needle-bar 12 reciprocally swingings, the time ratio of three needle-bar reciprocally swingings is close to 1 ︰ 1, be that the oscillating stroke speed ratio factor of needle-bar is close to 1 ︰ 1, oscillating stroke speed ratio factor is less, the acceleration extreme value of three needle-bars is less, thereby can be applicable to better braiding at a high speed.
Needle-bar swing mechanism referring to many combs Raschel looms of the second embodiment of the present invention shown in Fig. 3,4, comprises the transmission main shaft A being arranged on rotationally in warp knitting machine fuel tank
0, be fixedly mounted on described transmission main shaft A
0on eccentric wheel 1, fuel tank take-off lever 2, top link 3, lopping arm shaft C
0, leading arm 4 and warp knitting machine connecting rod rack; One end of described top link 3 and described lopping arm shaft C
0be fixedly connected with, the upper end C of the other end and described fuel tank take-off lever 2 is rotationally connected; The upper end 4-1 of described leading arm 4 is slidably connected by the first guide pillar 10 with the grooved needle bed 5 that groove pin 5-1 is installed, the lower end of described leading arm 4 and described lopping arm shaft C
0be fixedly connected with; The nook closing member bed 6 that nook closing member 6-1 is installed is slidably connected with described grooved needle bed 5 by the second guide pillar 11, and the knocking over needle-bar 12 that knocking over pin 12-1 is installed is fixedly mounted on the upper end 4-1 of described leading arm 4, described lopping arm shaft C
0be arranged on rotationally on the supporting base on warp knitting machine fuel tank top, between described eccentric wheel 1 and fuel tank take-off lever 2, be provided with eccentric bushing connecting rod 7 and delta link 8, the lower end A of described eccentric bushing connecting rod 7 arranges a through hole 7-1, the lower end A of eccentric bushing connecting rod 7 is sleeved on described eccentric wheel 1 by this through hole 7-1, and the upper end of described eccentric bushing connecting rod 7 is by the left upper end B of bearing pin and described delta link 8
0be rotationally connected, the bottom B of described delta link 8 is rotationally connected by minor axis 14 and bearing and described connecting rod rack, the upper right side B of described delta link 8
1lower end by bearing pin and described fuel tank take-off lever 2 is rotationally connected.The needle-bar swing mechanism of this embodiment is by a primary crank endplay device A
0a B
0b is a double rocker mechanism B of follow-up series connection again
0b
1c C
0watt (WATT) the type planar six-bar linkage forming is realized grooved needle bed 5, the oscillating motion of nook closing member bed 6 and knocking over needle-bar 12, this swing mechanism is when work, the curve of output opposite direction of the input curve of eccentric wheel 1 and top link 3, grooved needle bed 5, the average speed approximately equal of nook closing member bed 6 and knocking over needle-bar 12 reciprocally swingings, the time ratio of three needle-bar reciprocally swingings is close to 1 ︰ 1, be that the oscillating stroke speed ratio factor of needle-bar is close to 1 ︰ 1, oscillating stroke speed ratio factor is less, the acceleration extreme value of three needle-bars is less, thereby can be applicable to better braiding at a high speed.
When oscillating motion, in above-mentioned two kinds of embodiments, for reducing eccentric bushing connecting rod 7 and the frictional force of eccentric wheel 1 when rotating, extend its service life, and make the rotation of eccentric bushing connecting rod 7 more flexible, a bearing 9 can be set between the lower end of described eccentric bushing connecting rod 7 A and eccentric wheel 1, and this bearing 9 is placed in the described through hole 7-1 of eccentric bushing connecting rod 7 lower end A, and the lower end A of described eccentric bushing connecting rod 7 is sleeved on described eccentric wheel 1 by this bearing 9.
Below the course of work of swing mechanism of the present invention when yarn lopping campaign: by transmission main shaft A
0with rotatablely moving of the eccentric wheel 1 being fixedly connected with it, and under the effect of eccentric bushing connecting rod 7, realizing delta link 8 swings up and down, the swing of delta link 8 make fuel tank take-off lever 2 with the mode that promotes up and down by transport of kinetic energy to top link 3, realize swinging up and down of top link 3, top link 3 is by lopping arm shaft C
0make leading arm 4 drive grooved needle bed 5, nook closing member bed 6 and knocking over needle-bar 12 to do oscillating traverse motion simultaneously.
Through on probation, oscillating stroke speed ratio factor of the present invention is 1 ︰ 1.022, close to 1 ︰ 1, can be applicable to well braiding at a high speed, and simple in structure, drive path is short, reliable operation, has obtained good effect.
Claims (4)
1. a needle-bar swing mechanism for the Raschel looms of comb more than, comprises the transmission main shaft (A being arranged on rotationally in warp knitting machine fuel tank
0), be fixedly mounted on described transmission main shaft (A
0) on eccentric wheel (1), fuel tank take-off lever (2), top link (3), lopping arm shaft (C
0), the connecting rod rack of leading arm (4) and warp knitting machine; One end of described top link (3) and described lopping arm shaft (C
0) be fixedly connected with, the upper end (C) of the other end and described fuel tank take-off lever (2) is rotationally connected; The upper end (4-1) of described leading arm (4) is slidably connected with the grooved needle bed (5) that groove pin (5-1) is installed, the lower end of described leading arm (4) and described lopping arm shaft (C
0) be fixedly connected with; The nook closing member bed (6) that nook closing member (6-1) is installed is slidably connected with described grooved needle bed (5), it is characterized in that: between described eccentric wheel (1) and fuel tank take-off lever (2), be provided with eccentric bushing connecting rod (7) and delta link (8), the lower end (A) of described eccentric bushing connecting rod (7) is sleeved on described eccentric wheel (1), the bottom (B) of the upper end of described eccentric bushing connecting rod (7) and described delta link (8) is rotationally connected, the left upper end (B of described delta link (8)
0) be rotationally connected the upper right side (B of described delta link (8) with described connecting rod rack
1) be rotationally connected with the lower end of described fuel tank take-off lever (2).
2. the needle-bar swing mechanism of many comb Raschel loomss according to claim 1, it is characterized in that: between the lower end of described eccentric bushing connecting rod (7) (A) and eccentric wheel (1), be provided with bearing (9), the lower end (A) of described eccentric bushing connecting rod (7) is sleeved on described eccentric wheel (1) by this bearing (9).
3. a needle-bar swing mechanism for the Raschel looms of comb more than, comprises the transmission main shaft (A being arranged on rotationally in warp knitting machine fuel tank
0), be fixedly mounted on described transmission main shaft (A
0) on eccentric wheel (1), fuel tank take-off lever (2), top link (3), lopping arm shaft (C
0), the connecting rod rack of leading arm (4) and warp knitting machine; One end of described top link (3) and described lopping arm shaft (C
0) be fixedly connected with, the upper end (C) of the other end and described fuel tank take-off lever (2) is rotationally connected; The upper end (4-1) of described leading arm (4) is slidably connected with the grooved needle bed (5) that groove pin (5-1) is installed, the lower end of described leading arm (4) and described lopping arm shaft (C
0) be fixedly connected with; The nook closing member bed (6) that nook closing member (6-1) is installed is slidably connected with described grooved needle bed (5), it is characterized in that: between described eccentric wheel (1) and fuel tank take-off lever (2), be provided with eccentric bushing connecting rod (7) and delta link (8), it is upper that the lower end (A) of described eccentric bushing connecting rod (7) is sleeved on described eccentric wheel (1), the left upper end (B of the upper end of described eccentric bushing connecting rod (7) and described delta link (8)
0) be rotationally connected, the bottom (B) of described delta link (8) is rotationally connected with described connecting rod rack, the upper right side (B of described delta link (8)
1) be rotationally connected with the lower end of described fuel tank take-off lever (2).
4. the needle-bar swing mechanism of many comb Raschel loomss according to claim 3, it is characterized in that: between the lower end of described eccentric bushing connecting rod (7) (A) and eccentric wheel (1), be provided with bearing (9), the lower end (A) of described eccentric bushing connecting rod (7) is sleeved on described eccentric wheel (1) by this bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005393.6A CN102560870B (en) | 2012-01-10 | 2012-01-10 | Needle bed swing mechanism for multi-bar Raschel warp knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005393.6A CN102560870B (en) | 2012-01-10 | 2012-01-10 | Needle bed swing mechanism for multi-bar Raschel warp knitting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102560870A CN102560870A (en) | 2012-07-11 |
| CN102560870B true CN102560870B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210005393.6A Expired - Fee Related CN102560870B (en) | 2012-01-10 | 2012-01-10 | Needle bed swing mechanism for multi-bar Raschel warp knitting machine |
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| CN (1) | CN102560870B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882619B (en) * | 2012-12-19 | 2016-06-08 | 卡尔迈尔纺织机械制造有限公司 | the knitting element of warp knitting machine |
| CN103255571A (en) * | 2013-04-10 | 2013-08-21 | 郑依福 | Eccentric transmission mechanism of high-speed multi-guide-bar jacquard-weave warp knitting machine |
| CN107009653A (en) * | 2017-05-18 | 2017-08-04 | 平阳县中塑机械有限公司 | The lifting drive of plastic containers process equipment |
| CN109457382A (en) * | 2019-01-14 | 2019-03-12 | 常州市赛嘉机械有限公司 | Groove pin eccentric ratio movement mechanism for full width weft insertion machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6750484U (en) * | 1968-09-28 | 1969-01-09 | Mayer Textilmaschf | DEVICE FOR DRIVING THE KNITTING TOOLS OF CHAIN KNITTING MACHINES |
| DE2123273C3 (en) * | 1971-05-11 | 1973-11-08 | Karl Mayer, Textil-Maschinenfabrik Gmbh, 6053 Obertshausen | Warp knitting machine with point needles and sinkers |
| DE19537917C2 (en) * | 1995-10-11 | 1999-02-25 | Liba Maschf | Linkage gear drive of needle and slide bar of a warp knitting machine |
| CN200981918Y (en) * | 2006-12-01 | 2007-11-28 | 江苏技术师范学院 | Warp knitting machine grooved needle core motion mechanism |
| CN101768832B (en) * | 2010-01-19 | 2011-06-08 | 江苏技术师范学院 | Motion device of warp knitting machine for combining pin body of groove pin and guide bar |
| CN201713654U (en) * | 2010-06-24 | 2011-01-19 | 常州市润源经编机械有限公司 | Swing mechanism of needle core of grooved needle of warp loom |
| CN202430439U (en) * | 2012-01-10 | 2012-09-12 | 常州市润源经编机械有限公司 | Needle bed swing mechanism of multi-bar Raschel tricot machine |
-
2012
- 2012-01-10 CN CN201210005393.6A patent/CN102560870B/en not_active Expired - Fee Related
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