CN101736456A - Control component of draft back zone of spinning frame - Google Patents
Control component of draft back zone of spinning frame Download PDFInfo
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- CN101736456A CN101736456A CN200910261026A CN200910261026A CN101736456A CN 101736456 A CN101736456 A CN 101736456A CN 200910261026 A CN200910261026 A CN 200910261026A CN 200910261026 A CN200910261026 A CN 200910261026A CN 101736456 A CN101736456 A CN 101736456A
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- middle roller
- pressure bar
- pressure rod
- supports
- back zone
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Abstract
The invention discloses a control component of a draft back zone of a spinning frame, which comprises a pressure rod, a middle roller, a middle roller sliding base and a pair of oppositely arranged supports, wherein sliding slots which are matched with two ends of the pressure rod are formed at the upper parts of the supports, the pressure rod is fixedly clamped in the sliding slots, the supports are fixed in the specific positions of the middle roller sliding base, and spun strands can be fed along the tangent direction of an upper holding point and a lower holding point after passing through the pressure rod on the supports in the specific positions. As the further improvement, the spacing interval between the longitudinal lowest point of a rod body of the pressure rod clamped on the supports and the longitudinal highest point of the middle roller is equal to the thickness of a lower leather ring, and the spacing distance between the pressure rod on the supports and the middle roller is 4-7mm. The control component can still ensure high yarn-forming quality on the basis of greatly improving the total draft ratio after the actual use; furthermore, the overall cost is low, the installation and the control are simple, and the running is stable and reliable.
Description
Technical field
The invention belongs to and relate to a kind of textile machinery accessories, particularly a kind of assembly that is used for increase control point, fine spining machine drawing-off back zone.
Background technology
Along with the popularization of the high efficient technology of the cotton spinning amount of resetting high draft, more and more higher to the requirement of the drafting multiple of fine spining machine.Improve the spinning-drafting ability at present two kinds of methods are arranged: the one, keep less back zone drafting multiple, adopt and improve the proparea drafting multiple.The 2nd, adopt bigger back zone drafting multiple to reach the purpose that improves the total draft multiple.And from production practices, if bigger drafting multiple is adopted in the back zone, then the drafting force irregularity increases, and influences the uniformity of sliver easily; If adopt to increase the proparea drafting multiple, then must strengthen the control action of cushion rubber, and the control action that will increase the proparea apron is easy to be subjected to the restriction of conditions such as equipment.Therefore general enterprise tends to select to increase the method for back zone drafting multiple.In actual production process, tend to because the back zone roller gauge is bigger, make a little less than the friction field distribution of middle part, back zone that cause short fiber speed change point unstable, it is dried to worsen bar, be easy to generate the normal property yarn defect of sending out.Simultaneously,,, easily cause after fiber speed change point disperses and move, influence evenness quality though strengthened of the control of preceding jaw to fiber for the V-type drawing-off.For solving this type of problem, tend to adopt the method for additional control piece in the back zone, this method one is the middle part friction field that increases draw zone, help the fiber speed change and put forward jaw near concentrating, the 2nd, the position of appropriate design pressure bar makes yarn grip the tangential feeding of point along apron, reach stable with improve into sliver and do, reduce the effect of resultant yarn details, slubbing, cotton joint.
In the prior art by also having much with the method that increases drafting multiple at spinning machine drafting back zone additonal pressure rod.For example, Hebei Taihang Machinery Industry Co., Ltd. and Zhang Xiaofang once applied for the utility model (patent No. is 2008200762397.X) of " a kind of pressure bar assembly that is used for the spinning machine drafting back zone " on February 4th, 2008, its major technique is contemplated that: two stands is provided with in opposite directions, support top is provided with chute, the chute place is provided with the flute profile screw hole, and two adjust slide block lays respectively on the two stands, is slidingly connected with support, the slide block bottom is provided with trip bolt, and pressure bar is fixed on two and adjusts on the slide block.The characteristics of this technology are that its pressure bar position can be adjusted front and back, and the position at control point, drawing-off back zone can rationally be set according to the characteristic of spinning yarn, thereby more effective and flexible for the control of drawing-off back zone yarn.But this patented technology also exists some defectives in actual use.Its although " can according to the position at the control point, characteristic appropriate design back zone of spinning yarn ", in fact it only designs the control point by the position that moves forward and backward pressure bar, and according to the characteristics of fine spining machine draw zone, if pressure bar only moves forward and backward, this mobile yarn that will change feeds such condition along gripping a some tangential direction, this will influence into sliver does, so this controllability has just lost meaning; The 2nd, because adjustable characteristics still need be done the optimum position that pressure bar is sought in a large amount of tests when installing and using, whole searching process operation is complicated and wayward, can bring bigger influence to technology stability; The 3rd, consider few to the influence that pressure bar may be subjected in actual production process, require the chute opening of placement force rod to make progress, if but adopt pressure bar to press down yarn, because the existing suitable brute force of rove twisting back yarn, yarn produces reaction force to pressure bar, make the pressure bar come-up, this will weaken additional friction power circle intensity, thereby directly influences the practical effect of whole device.
In addition, similarly patented technology also has: set up in the utility model patent (patent No. is 200520011534.0) and a patent of invention (patent No. is 200510063419.2) that is better than " pressure bar top pin " by name applied on the same day on April 8th, 2005, its main technical schemes is: according to yarn fiber movement and Changing Pattern, taking additional control rod is the mode of pressure bar, sets up new additional friction power circle in the drawing-off back zone.Pin on the elastic nip of draft apparatus is extended at rear end gripping place rear side, its extending part adds the pressure bar that is used for back area draft control by being connected and fixed member, on the elastic nip pin be connected and fixed member and pressure bar combines, constitute new draft apparatus---pressure bar top pin.It not only counter extensioin proparea yarn control, but also traction back zone yarn has been carried out effective control, thereby has improved the uniformity that bar is done, improved the quality of resultant yarn.In theory, to go up pin gripping place extends to rear side, construct the pressure bar device at extended spot, and mix pressure bar, pressure bar acts on the yarn in first break draft district, this technology can reach the effect that strengthens friction field in the first break draft district, can be designed to grip the feeding of some tangential direction along apron, but find to exist following problems in actual use: the one, because pressure bar state is due to the extending part of last pin gripping place rear side, be connected as a single entity with last pin, when pressure bar presses on yarn, because yarn has a reaction force that makes progress to pressure bar, therefore just there is an active force that makes progress at the rear portion to last pin, according to lever principle, thereby this will form elasticity that a downward power makes elastic nip at the jaw place of last pin and weaken even lose, and very easily goes out hardhead and influences result of use; The 2nd, concerning existing textile mills, use this technology, to sell with regard to normal going up of using on the palpus cradle, the cost input is bigger.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, the control component of draft back zone of spinning frame that a kind of cost is lower, installation control is easy, reliable is provided.
The objective of the invention is to realize: a kind of control component of draft back zone of spinning frame by following measure, the support that comprises pressure bar, middle roller, middle roller seat and pair of opposing, described support top has the chute that is complementary with the pressure bar two ends, described pressure bar fixedly is stuck in the chute, described support is fixed on middle roller seat specific location, the yarn that spins can be after through the pressure bar on the support on the described ad-hoc location along the tangential direction feeding that grips point up and down.
As a further improvement on the present invention, be stuck in apron thickness under being spaced apart of vertical peak of vertical minimum point of pressure bar barred body on the support and middle roller, described poppet pressure rod is 4～7mm with spacing of middle roller.
Further improve as of the present invention, described pressure bar is one or two, cross section, barred body middle part be circular or fan-shaped, and smaller and cross section is the circular arc rectangle, the vertically highly big 0.2mm of the circular arc rectangle at the excellent barred body of the longitudinal opening size specific pressure two ends of described chute than barred body at the barred body two ends.
Main thought of the present invention is: on a large amount of bases with reference to prior art, we are through repeatedly discovering repeatedly, under real process conditions, it is flat to improve into the sliver solid carbon dioxide, reduce resultant yarn details, slubbing, cotton knot, still can be behind the yarn process pressure bar that just must guarantee to be spun along the tangent line feeding of apron gripping point up and down.And still can be along the tangent line feeding of apron gripping point up and down behind the yarn process pressure bar that will guarantee to be spun, then the position of pressure bar is extremely important, that is to say that the method for fixation pressure rod and particular location are the most key.And through repeatedly measuring and calculating, test, we finally find support is fixed on the middle roller seat and can guarantee the drawing-off effect, being chosen in fixed support on the middle roller seat, is for no matter how the back zone roller gauge changes, and yarn all the time can be along the tangent line feeding of apron gripping point up and down.And compare by the contrast that the diverse location of support on the seat of middle sieve position that card is had carries out repeatedly, finally determined to block and put the chute of pressure bar and the optimum distance of roller stand, promptly when under being spaced apart of vertical peak of vertical minimum point of the chute on the support and middle roller during apron thickness, the pressure bar in the chute on the support by chance can make institute's bar that spin through from still feeding along the tangent line that apron up and down grips after one's death.Simultaneously, in order to guarantee that better pressure bar is unlikely to produce transfer and impact effect because being subjected to the effect of yarn in support, smaller and cross section is the circular arc rectangle than barred body also to require the barred body two ends; For convenience pressure bar put into taking-up, require the vertically highly big 0.2mm of circular arc rectangle at the longitudinal opening size specific pressure rod barred body two ends of chute.
After this improved, the present invention mainly had the outstanding effect of following three aspects:
1. the present invention can be directly installed on the middle roller seat of main frame, not only install and remove convenient and swift, make things convenient for improving old machine, and cost is very low.
2. the present invention uses reliably, technology stability is good.The present invention need not to regulate one by one after installing according to the size of design, has guaranteed the uniformity and the stability of position, control point.
3. result of use of the present invention is better.Make into after the present invention uses that sliver is done and the normal property yarn defect level of sending out is all obviously controlled, the quantitative high efficient technology result of use of counterweight is good especially, after the total draft multiple significantly improves, has still guaranteed the higher quality level.
Description of drawings
Fig. 1 is the present invention's scheme of installation on roller stand
Fig. 2 is a pressure bar structural representation among the present invention
Fig. 3 is a pressure bar two ends cross sectional shape schematic diagram among the present invention
Fig. 4 user mode schematic diagram of the present invention (plane drawing-off)
Fig. 5 user mode schematic diagram of the present invention (V-type drawing-off)
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further to describe in detail.
Fig. 1 for the present invention be installed in configuration state schematic diagram on sieve position seat, comprise pressure bar 1, support 2, middle roller seat 3, middle roller 4, apron 5 down.Earlier the two ends 6mm of described pressure bar partly is processed in the present embodiment widely be 4, the circular arc rectangle of high 3.8mm.Again according to duck shape support of support shape processing shown in Figure 1, the direction of middle roller away from a side direction of middle roller on support top is opened a chute according to the principle of " apron thickness under being spaced apart of vertical peak of vertical minimum point of pressure bar barred body and middle roller ", big slightly 0.2 millimeter of height on the plane of its vertical aspect ratio pressure bar two ends processing, have two fixing holes in its underpart, on the middle roller seat, make a call to two holes then, support is fixed on the middle roller seat.Then pressure bar is snapped in the chute, this moment institute's yarn that spins can feed along the tangential direction that grips point up and down after through the pressure bar on this position support just.Only need design a pressure bar for the V-type drawing-off, and for the plane drawing-off, two pressure bars of characteristics needs design according to its draw zone, a pressure bar of front must guarantee that yarn is along the tangent line feeding of apron gripping point up and down, a next pressure bar can allow yarn form one section grip hold arc on rear roller surface and form curve drawing, makes near the stronger friction field rear roller.In general, the present invention can make regular roving feeding bring up to per 10 centimetre of 8 gram, and more than the spun yarn total draft multiple to 60 times, the yarn quality horizontal stable becomes sliver to do and km details, slubbing, cotton knot level all have clear improvement.
Above-described only is preferred implementation of the present invention, should be understood that, for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, as long as can feed this rated condition along the tangential direction that grips point up and down behind the pressure bar as realizing, it can also be that other are irregularly shaped that the shape of described support is not limited to duck shape, the fixed solution of pressure bar and support also not necessarily is confined to chute, and the big or small position of chute also can be done further to optimize and be improved.These all belong to protection scope of the present invention.
Claims (3)
1. control component of draft back zone of spinning frame, the support that comprises pressure bar, middle roller, middle roller slide and pair of opposing, it is characterized in that described support top has the chute that is complementary with the pressure bar two ends, described pressure bar is stuck in the chute, described support is fixed on middle roller slide specific location, the yarn that spins can be after through the pressure bar on the support on the described ad-hoc location along the tangential direction feeding that grips point up and down.
2. a kind of control component of draft back zone of spinning frame according to claim 1, it is characterized in that apron thickness under being spaced apart of the described vertical peak that is stuck in vertical minimum point of pressure bar barred body on the support and middle roller, described poppet pressure rod is 4～7mm with spacing of middle roller.
3. a kind of control component of draft back zone of spinning frame according to claim 2, it is characterized in that described pressure bar is one or two, cross section, barred body middle part is rounded or fan-shaped, smaller and cross section is the circular arc rectangle than barred body at the barred body two ends, the vertically highly big 0.2mm of the circular arc rectangle at the longitudinal opening size specific pressure rod two ends of described chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261026A CN101736456A (en) | 2009-12-07 | 2009-12-07 | Control component of draft back zone of spinning frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261026A CN101736456A (en) | 2009-12-07 | 2009-12-07 | Control component of draft back zone of spinning frame |
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| CN101736456A true CN101736456A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910261026A Pending CN101736456A (en) | 2009-12-07 | 2009-12-07 | Control component of draft back zone of spinning frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719940A (en) * | 2012-07-04 | 2012-10-10 | 东营市半球纺织有限公司 | Middle roller slide block hanging piece used for spinning frame to spin middle and long fibers |
-
2009
- 2009-12-07 CN CN200910261026A patent/CN101736456A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719940A (en) * | 2012-07-04 | 2012-10-10 | 东营市半球纺织有限公司 | Middle roller slide block hanging piece used for spinning frame to spin middle and long fibers |
| CN102719940B (en) * | 2012-07-04 | 2015-02-04 | 东营市半球纺织有限公司 | Middle roller slide block hanging piece used for spinning frame to spin middle and long fibers |
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Open date: 20100616 |