CN1018739B - High fold drawing device of uneaqual length and double long leather ring - Google Patents
High fold drawing device of uneaqual length and double long leather ringInfo
- Publication number
- CN1018739B CN1018739B CN 90106098 CN90106098A CN1018739B CN 1018739 B CN1018739 B CN 1018739B CN 90106098 CN90106098 CN 90106098 CN 90106098 A CN90106098 A CN 90106098A CN 1018739 B CN1018739 B CN 1018739B
- Authority
- CN
- China
- Prior art keywords
- leather ring
- upper leather
- zone
- district
- yarn
- 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.)
- Expired
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- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention relates to a high-magnification drafting device for double long leather rings with unequal length, which is a ring frame drafting device for making improvement and design for a cradle, and the ring frame drafting device can improve the quality of finished yarn and can enhance the magnification of total draft. The ring frame drafting device is provided with a lengthened upper cradle which not only participates in the work of a front draft zone but also participates in the work of a back draft zone. In the front draft zone, the upper cradle and a lower cradle which are formed into an elastic jaw are the same as those of the prior art; in the back draft zone, the upper cradle is provided with a protruding end which is lower than the plane of a main draft zone, fringing is tightly clung to the surface of an upper leather ring to form a friction field, and fringing in the bulk of zones of the whole back draft zone is positioned in a stable control state. The device has the characteristics of low improvement expenses of old machines, convenient operation, etc.
Description
The present invention be in addition improved to the drafting system of ring spinner of the two apron reel cages pressurizations of existing three rollers, make the curved drawing-off in first break draft district, can improve yarn quality and improve the drafting system of total draft multiple.
The effect of drafting system of ring spinner be will feeding the rove yarn after warp, during the front draft zone, take out long drawing-down equably to the desired variouss number of resultant yarn.
The drafting system of the widely used ring throstle of textile mills can be summed up as three types at present:
1. the front draft zone is two apron elastic nips, and the first break draft district is the drawing-off of simple roller straight line.
The type has the drafting system (accompanying drawing 1) of former federal republic of germany SKF, the R2P drafting system and the JP56-58012(A of Switzerland Rieter Perfojet), JP56-63021(A) and drafting system JP56-63022(A) etc.Because the first break draft district adopts the drawing-off of roller straight line, makes most of yarn be in non-control state, the yarn middle part is easy to generate merokinesis, and yarn moves back to be easy to generate when separating the twist and stirs, produce the turn phenomenon that heavily distributes, make yarn uniformity variation, drafting multiple can not improve.
2. the front draft zone is two apron elastic nips, and then draw zone is the roller curve drawing.
This class drafting system comprises that the V-type high times drafting device (accompanying drawing 2) of former federal republic of germany Yi Na company and the application number of China are S type high times drafting device (accompanying drawing 3) of 87207310.6 etc.The curve drawing in first break draft district is the positive role that increases fiber strip control, thereby can improve the drawing-off ability and improve yarn quality, but in use also has following problem:
(1), requires roller stand, reel cage and transmission mechanism redesign owing to the change of back bottom roll and epithelium posterius roller position.This is to the specification requirement height of improving old machine, and improvement expenses is big, is a big obstacle of applying;
(2) V-type and S type high times drafting device only utilize the segmental arc counter extensioin yarn of bottom roll surface, back grip hold arc to control, and still have sizable district of swimming.Yarn still is in the non-control state of straight line drawing-off in the district of swimming, and it is big inadequately therefore to control effect;
(3) during running operation, to the importing inconvenience of rove;
(4) require the special-purpose feeding loudspeaker that mate;
(5) S type high times drafting device is to increase a rotating control roll in the first break draft district, it is subjected to the downward pressure of passing from reel cage, but be subjected to passing a normal reaction of control roll from the back bottom roll, the direction of these two power is near vertical mutually, so moving of left and right sides above-below direction takes place in control roll easily, and the drive fiber strip is done identical moving, the result makes the control roll cisco unity malfunction, so, not only do not bring into play the advantage of curve drawing, fiber strip ruptures or uniformity variation easily on the contrary.
3. front draft zone and first break draft district are two apron elastic nips, and the shared a pair of apron of two draw zones.
This class comprises USP4067088 drafting system (accompanying drawing 4) and USP4391021(accompanying drawing 5) drafting system etc.Their first break draft district all adopts two apron elastic nips, and apron rises yarn and supports and guide effect.The former yarn is linearly under apron clamping up and down; Latter's yarn is curved shape under apron clamping up and down, though can further increase the control action to fiber strip like this, has following problem:
(1) rove enters behind the first break draft district under two apron clampings, can not freely rotate so that the twist on the rove difficulty move back and separate drawing-off meeting generation certain difficulty;
(2) apron is stressed stressed bigger than single district at former and later two draw zones down, so apron is more fragile down, thereby causes that transposing hypodermis circle time number increases.Just can carry out and change apron must remove bottom roll, so increased workload and work difficulty greatly.
What (3) bottom cradle of this pattern and tradition were generally used is different, and to the specification requirement height of improving old machine, improvement expenses is big, is a big obstacle of applying.
Purpose of the present invention, provide the drafting system of simple in structure, the easy to operate not isometric double long leather ring that the drafting system in the first break draft district of the two apron reel cages of a kind of three rollers to present ring throstle front draft zone pressurization, that have the elastic nip formula and curve drawing makes improvements, make back area draft be better curve drawing, to improve yarn quality and to improve the total draft multiple.
The present invention only adopts single upper leather ring in order to improve the friction field of back area draft in the back zone, rather than with following apron first break draft district yarn is controlled.This control only utilize upper leather ring the extension in first break draft district downward bias from, rear roller jaw line and realize for tension force of yarn of back area draft.
The drafting system of ring spinner of the not isometric double long leather ring reel cage pressurization of three rollers of the present invention, first break draft district with front draft zone and curve drawing of elastic nip formula, upper leather ring is the skin circle, stride seat in front draft zone and first break draft district, and participate in the high times drafting device of former and later two draw zone work, it is characterized in that the first break draft district has only a sealing upper leather ring, this sealing upper leather ring draw zone backward stretches out, and by angle piece, support the cradle that plate and twisted plate form and support.Support plate and contact formation jag a with upper leather ring
2, angle piece contacts with upper leather ring and forms jag a
3, make upper leather ring be lower than the main drawing area plane downwards, promptly depart from middle roller to gripping point and the connecting line of rear roller to the gripping point; The present invention adopts single upper leather ring in the first break draft district, rather than with following apron first break draft district yarn is controlled, this control only utilize upper leather ring the extension in first break draft district downward bias from, rear roller realizes to tension force of yarn of back area draft the line of jaw; Yarn forms on grip hold arc and the following apron on the middle bottom roller surface on bottom roll surface, back and forms grip hold arc, this is owing to stretch to the upper leather ring in first break draft district and the cradle of supporting dashes down downwards, make upper leather ring downward bias from, rear roller is to gripping due to the line of putting.The corresponding central angle of grip hold arc at the back bottom roll is α, α=0 °～90 °, and the point of contact of grip hold arc is a
1, point of contact a
1To jag a
2Distance be free zone b, b=2～30mm, yarn is a at the point of contact of the grip hold arc of the following apron on middle bottom roller surface
4; In addition, projecting point a
3With a
2a
4Distance H=0～20mm on the perpendicular direction of line is at a
2a
4A on the line parallel direction
2With a
3Between air line distance l=(1/4～3/4) L, wherein L is a
2To a
4Between air line distance.Jag a
2And a
3Successively accept fiber strip, because of the jag a of upper leather ring from the district b that swims
2And a
3Downward bias to gripping point and the rear roller connecting line to the gripping point, under the effect of the power that is produced, makes fiber strip paste upper leather ring pilled-in selvedge surface from middle roller, and passes through jag a under the control of upper leather ring
2And a
3And it is right to enter middle roller.Feature of the present invention also be first break draft district cradle angle piece, support that plate, twisted plate can weld, riveted joint, screw connects or form by binding agent is bonding, also available same block of material pressure processing is integral.Angle piece of the present invention, support plate, twisted plate and also can be connected with elbow welding, riveted joint, the screw of the cradle of front draft zone or, also can be integral with adhesive bond together with same block of material pressure processing.Another characteristics of the present invention are that the shape that supports plate and upper leather ring contact position and angle piece and upper leather ring contact position can be orthoscopic, also can be shallow-slot type, the width C of groove=1～20mm, groove depth h=0.5～5mm.Twisted plate can be made and have the elbow that can push down apron, makes it keep elasticity.
Accompanying drawing of the present invention has:
Accompanying drawing 1 is a former federal republic of germany SKF drawing-off schematic diagram;
Accompanying drawing 2 is the V-type high drafting schematic diagram of former federal republic of germany Yi Na company;
Accompanying drawing 3 is a S type high drafting schematic diagram;
Accompanying drawing 4 is a USP4067088 drawing-off schematic diagram;
Accompanying drawing 5 is a USP4391021 drawing-off schematic diagram;
Accompanying drawing 6 is the high fold drawing device of uneaqual length and double long leather ring sketch;
Accompanying drawing 7 is the high fold drawing device of uneaqual length and double long leather ring structure chart;
Accompanying drawing 8 supports the structure chart of plate, angle piece and twisted plate for the present invention;
Accompanying drawing 9 supports the A of plate, angle piece and twisted plate to revolved view for the present invention;
Accompanying drawing 10 supports the B of plate, angle piece and twisted plate to revolved view for the present invention.
Advantage of the present invention is to adopt upper and lower apron elastic nip in the front draft zone, and only adopt upper leather ring, its jag a in the first break draft district2、a
3Be lower than the main drawing area plane, and the upper leather ring in two districts shares an apron, it is intended to guarantee the curve drawing section of fiber strip under not isometric double long leather ring is actively controlled of forward and backward draw zone, movement does not up and down take place, and after fiber strip is in the length of distinguishing of swimming of straight line drawing-off section in shortening whole first break draft district, do not cause again rove to move back in the back zone and separate twist generation difficulty, improved the friction field in whole first break draft district. So both prevented from producing merokinesis at the yarn middle part in first break draft district, yarn is moved back be difficult for when separating the twist stirring, the phenomenon that turn heavily distributes reduces, having kept the turn on the yarn to distribute reduces from back to front gradually, yarn when making the feeding front draft zone has even structure and necessary tight ness rating, make it to match with the front draft zone friction field and form stable front draft zone friction field and distribute, thereby give full play to the effect of apron control fiber movement, reach the purpose that reduces the thickness joint, improves evenness quality.
6,7,8,9,10 pairs of implementation methods are explained as follows in conjunction with the accompanying drawings:
Accompanying drawing 6 is high fold drawing device of uneaqual length and double long leather ring sketches on the ring throstle.Fig. 7 is the high fold drawing device of uneaqual length and double long leather ring structure chart.It is by the skin circle and by supporting the cradle that plate, angle piece and twisted plate are formed in the first break draft district, and upper leather ring had both been participated in the front draft zone R of elastic nip formula
1Work, participate in first break draft district R again
2The work of curve drawing section.Reel cage 19(Fig. 6 in this drafting system) and front draft zone (R
1) cradle same as the prior art, front draft zone (R
1) comprise parts such as upper leather ring 8, middle bottom roller 1, elbow 9, middle upper leather roller 10, antecurvature bent plate 11, sheet spring 12, fagging 13, the plate 14 that spaces, anterior epithelium cornea roller 15, preceding bottom roll 16, lower leather ring pin 17, following apron 18, constitute the front draft zone (see figure 7) of elastic nip formula.At first break draft district (R
2), by with the front draft zone shared, backward the upper leather ring 8 and the angle piece 5 that extend of draw zone, support the cradle that plate 6, twisted plate 7 are formed.Angle piece 5, support that plate 6 can weld with twisted plate 7 threes, riveted joint, screw is connected or form with the binding agent bonding, also available same block of material pressure processing is integral.Angle piece 5, supporting plate 6 and twisted plate 7 threes also can be with elbow 9 welding, the riveted joint of front draft zone, screw is connected or with adhesive bond together, also available same block of material pressure processing is integral.At jag a
2, a
3Downward effect under, there is the grip hold arc of fiber strip 3 on the surface of back bottom roll 2, the point of contact of grip hold arc is a
1, pairing central angle is α, α is 0 °～90 °.From point of contact a
1To supporting the jag a of plate 6 with upper leather ring 8 formation
2Distance be b, b is the district of swimming of fiber strip straight line drawing-off.B=2～30mm, with first break draft district among Fig. 1,2,3 swim accordingly the district compare, it shortened greatly swim the district length.L supports plate 6 and upper leather ring 8 formed jag a
2Point of contact a to yarn 3 grip hold arc on the following apron 18 on middle bottom roller 1 surface
4 Distance.Angle piece 5 forms jag a with upper leather ring 8
3, jag a
3With a
2a
4Distance H on the line vertical direction=0～20mm, and at a
2a
4On the line parallel direction apart from l=(1/4～3/4) L, twisted plate 7 can be made and have the elbow shape, makes it keep elasticity to push down apron.In the accompanying drawing 74 is the epithelium posterius roller.
At first break draft district R
2The long cradle of going up of work makes fiber strip 3 be subjected to a of upper leather ring 8
2, a
3The effect of jag is earlier at first break draft district (R
2) form a curve drawing, promptly fiber strip is attached to back bottom roll 2 surfaces earlier and forms grip hold arcs, experience L that very short swim district b and one is subjected to upper leather ring 8 controls apart from after just enter front draft zone (R
1) drawing-off.Because middle bottom roller changes soon than back bottom roll, produces tension force on the fiber strip in first break draft district.Again because the jag a of the upper leather ring 8 in first break draft district
2And a
3Be lower than the main drawing area plane, promptly be lower than middle roller to gripping point and the line of rear roller to the gripping point, make fiber strip be close to the surface of upper leather ring 8, form friction field, make whole first break draft district except that the b section swim the district, major part is among the positive state of a control, and the yarn tightness also increases, can prevent that like this drawing-off yarn middle part from producing merokinesis, the difficult generation of yarn stirred simultaneously, the phenomenon that heavily distributes turn reduces, keep turn on the yarn to distribute and reduce gradually from back to front, in this case, back fiber to the control of floating fiber greater than the directed force of preceding fiber to floating fiber, make fiber not do sth. in advance speed change, fiber speed change point moves forward and tends towards stability.
Embodiment:
On ring throstle, carry out the contrast test of common length apron draft and not isometric double long leather ring high drafting.Test is at same raw material, same rove, spins the 18tex Quality Pure Cotton Yarn Production with on the ingot number.Process conditions: 32 times of total drafts, 1.25 times of first break draft district drawing-offs, the front draft zone ratch is 43 millimeters, and the first break draft district is 54 millimeters, before, during and after roller per 2 ingots that pressurize be respectively 150,100,120 newton, get the b=10 millimeter, the H=5 millimeter, l=0.5L, α=30 °, the C=15 millimeter, the h=1 millimeter.Result of the test is as follows:
The test evenness fault
The cotton joint of project-50% details+50% slubbing+200%
Type CV(%)
Common length 17.22 31 174.83 89.6
Apron draft
Do not wait two long by 16.75 23.74 122.87 83.78
Apron draft
Claims (4)
1, a kind of reel cage pressurization drafting system that is used for the two aprons of three rollers of ring throstle, the first break draft district of its flexible jaw formula front draft zone and curve drawing, upper leather ring is the skin circle, strides seat in front draft zone and first break draft district, and participate in former and later two draw zone work, its feature is specially:
(1) the first break draft district has only a sealing upper leather ring, and this sealing upper leather ring draw zone backward stretches out, and by angle piece, support the cradle that plate and twisted plate form and support, support plate and contact formation jag a with upper leather ring
2, angle piece contacts with upper leather ring and forms jag a
3, make upper leather ring be lower than the main drawing area plane downwards, promptly depart from middle roller to gripping point and the connecting line of rear roller to the characteristics of holding;
(2) adopt single upper leather ring in the first break draft district, rather than with following apron first break draft district yarn is controlled, this control only utilize upper leather ring the extension in first break draft district downward bias from, rear roller realizes to tension force of yarn of back area draft the line of jaw;
(3) yarn forms on grip hold arc and the following apron on the middle bottom roller surface on bottom roll surface, back and forms grip hold arc.This is owing to stretch to the upper leather ring in first break draft district and the cradle of supporting dashes down downwards, make upper leather ring downward bias from, rear roller is to due to the line that grips point, the corresponding central angle of grip hold arc at the back bottom roll is α, α=0 °～90 °, and the point of contact of grip hold arc is a
1, point of contact a
1To jag a
2Distance be free zone b, b=2～30mm.Yarn is a at the point of contact of the grip hold arc of the following apron on middle bottom roller surface
4
(4) projecting point a
3With a
2a
4Distance H=0～20mm on the perpendicular direction of line is at a
2a
4A on the line parallel direction
2With a
3Between air line distance l=(1/4～3/4) L, wherein L is a
2To a
4Between air line distance.
2, drafting system according to claim 1 is characterized in that angle piece, supports plate, twisted plate can weld, riveted joint, screw connects or form with the binding agent bonding that an also available block of material pressure processing is integral.Also can be connected or with adhesive bond together, also available same block of material pressure processing is integral with cradle welding, riveted joint, the screw of front draft zone.
3, drafting system according to claim 1 is characterized in that the shape that supports plate and upper leather ring contact position and angle piece and upper leather ring contact position can be orthoscopic, also can be shallow-slot type, the width C of groove=1～20mm, groove depth h=0.5～5mm.
4, drafting system according to claim 1 is characterized in that twisted plate can be made and has the elbow that can push down apron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106098 CN1018739B (en) | 1990-12-18 | 1990-12-18 | High fold drawing device of uneaqual length and double long leather ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106098 CN1018739B (en) | 1990-12-18 | 1990-12-18 | High fold drawing device of uneaqual length and double long leather ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051945A CN1051945A (en) | 1991-06-05 |
| CN1018739B true CN1018739B (en) | 1992-10-21 |
Family
ID=4879801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106098 Expired CN1018739B (en) | 1990-12-18 | 1990-12-18 | High fold drawing device of uneaqual length and double long leather ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018739B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586964A (en) * | 2010-12-20 | 2012-07-18 | 株式会社丰田自动织机 | Drafting device of spinning machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371511C (en) * | 2005-04-08 | 2008-02-27 | 成立强 | Pressure bar top pin |
| CN100414009C (en) * | 2005-11-19 | 2008-08-27 | 无锡集聚纺织器械有限公司 | Back zone drafting method of spinning machine with additive curve drafting |
-
1990
- 1990-12-18 CN CN 90106098 patent/CN1018739B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586964A (en) * | 2010-12-20 | 2012-07-18 | 株式会社丰田自动织机 | Drafting device of spinning machine |
| CN102586964B (en) * | 2010-12-20 | 2014-06-04 | 株式会社丰田自动织机 | Drafting device of spinning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1051945A (en) | 1991-06-05 |
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| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |