CN102199818A - Compact roller drawing frame and spinning machine including same - Google Patents
Compact roller drawing frame and spinning machine including same Download PDFInfo
- Publication number
- CN102199818A CN102199818A CN2011100678694A CN201110067869A CN102199818A CN 102199818 A CN102199818 A CN 102199818A CN 2011100678694 A CN2011100678694 A CN 2011100678694A CN 201110067869 A CN201110067869 A CN 201110067869A CN 102199818 A CN102199818 A CN 102199818A
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- Prior art keywords
- roller
- strip
- drawing frame
- compacting
- zone
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
A compact roller drawing frame and a spinning machine including the same. The invention provides a roller drawing frame 100 for drawing at least a short fiber strip (F), characterized in that a drawing region (S) on which the strip (F) is wholly drawn is only composed of two pairs of rollers (2/2a, 3/3a) and the strip is wholly drawn between two pairs of rollers (2/2a, 3/3a).
Description
Technical field
The present invention relates to the roller drawing frame that is used at least one staple fibre strip of drawing-off as described in the preamble as claimed in claim 1, it also relates to the spinning machine that comprises at least one roller drawing frame.
Background technology
This class roller drawing frame is used for by known method and installs at least one strip (rove, slub) and preferably a plurality of this strip that will comprise staple fibre (for example cotton fiber and/or artificial fibre) being drawing to the fineness of wanting.The strip for the treatment of drawing-off is transferred by roller drawing frame along specific conveying (operation) direction, under the state of prior art, this roller drawing frame comprise a plurality of one-tenth pair rollers and constitute as separate roller between the drawing-off of integral body of several local drawing-offs parts.For example from the known this roller drawing frame of German patent DE 100 52 878 A1, it combines three pair rollers that are used for drawing-off.In the end of this traditional roller drawing frame, drafted strip (yarn) is transported to twisting machine usually, such as the ring ingot.
The shortcoming of the roller drawing frame of these prior aries is that for example they are along the scope of the length of the traffic direction formation of the strip for the treatment of drawing-off or the excessive area of coverage.
Summary of the invention
Therefore the objective of the invention is to propose a kind of roller drawing frame, the shortcoming of prior art is avoided or reduced at least widely to this roller drawing frame.
This purpose is realized by roller drawing frame as claimed in claim 1.Favourable aspect forms the theme of dependent claims.Described in another independent claims, realize that this purpose also extends to spinning machine and the particularly ring spinner that comprises this roller drawing frame.
In order to realize this purpose, a kind of roller drawing frame that is used for spinning machine that is used at least one staple fibre strip of drawing-off is proposed, wherein, the described strip draw zone at drafted place is generally only formed by two pair rollers now, and realizes drawing-off generally between described two pair of rollers.
Make and can only between two pairs of adjacent rollers, only in once-through operation, finish the drawing-off strip now according to roller drawing frame of the present invention, as input roller to limiting draw zone simultaneously with the right described two pairs of adjacent rollers of outlet roller.Faster and produce drawing-off than feed roller by discharge roller to the peripheral speed of (input roller to) to the peripheral speed of (outlet roller to).Exempted segmentation drawing-off generally now like this, thereby it is right to have saved roller compared with the prior art, has reduced the area of coverage of described roller drawing frame simultaneously.More specifically, this has exempted so-called preliminary draft district, in other words, first roller of roller drawing frame according to the present invention is to being now that described input roller in the described draw zone is right simultaneously, present described strip is drafted generally in described draw zone, thereby realizes the cramped construction of described roller drawing frame.
The drawing-off of segmentation generally of described strip is out-of-date design now.Segmentation dates back to roller drawing frame early, the roller of this roller drawing frame (particularly hold-down roller or upper roll) is installed in the sliding bearing, and its roller shell is by the felt fabric support that coats in the leather hose, the two, promptly, sliding bearing and leather sheath are unsuitable for high load capacity, thereby must carry out segmentation for drawing-off generally.What especially need is that upstream at resultant draft is at preliminary draft in the so-called preliminary draft district (shown in German patent DE 100 52 878 A1), can be fed into actual draw zone and almost do not slide with the strip of guaranteeing to treat drawing-off, thereby guarantee the fineness wanted in the drawing-off.
Yet, can utilize the high load capacity anti-friction bearing that is used for roller now and for example be high load capacity and the extremely wear-resisting roller sheath that designs, make that corresponding roller now can be for reducing under the height contact pressure that slides and running at a high speed by what tartan was made.
It has surprisingly been found that, for example when the strip for the treatment of drawing-off enter best described draw zone and when the contact pressure on the right clamping lines of described input roller enough high when guaranteeing that described strip fricton-tightly supplies in the described draw zone, segmentation and local preliminary draft can be exempted by harmless ground (promptly not having quality and/or speed loss) now.Make like this and can utilize current anti-friction bearing and roller sheath only between two pair of rollers, to realize drawing-off generally.
One favourable aspect in, as along as described in the traffic direction of strip observed, at right at least one brake apparatus of upstream arrangement (tensioning apparatus) of the described input roller of described draw zone, the essentially no distortion of described brake apparatus or do not have the described strip for the treatment of drawing-off of elongation ground predraft.By means of this brake apparatus, treat that the described strip of drawing-off can be fed into the described draw zone of slightly being strained now, thereby avoid all or any trend that becomes ring, thereby can exempt the preliminary draft district that has as above illustrated especially.
In aspect another is favourable, the spacing between the described clamping lines that the described input roller of described draw zone is right and the effective brake line of described brake apparatus is less than 1.5 times of the strip average length that is included in the staple fibre in the described strip for the treatment of drawing-off.
In aspect another is favourable, described brake apparatus is formed by at least one sheave, and described sheave is twined at least in part by the described strip of drawing-off for the treatment of, treats that by described the strip of drawing-off and the winding friction between the described sheave realize described predraft at this.Preferably described brake apparatus comprises the sheave of a plurality of cooperations.
In aspect another is favourable, described brake apparatus is formed by at least one clamping device, wherein, the described strip for the treatment of drawing-off is particularly by the elastic force or the magnetically-actuated of working at least one fixing friction element, realizes described predraft in the friction at described fixing friction element place at this at least by the described strip for the treatment of drawing-off.
In aspect another is favourable, exist and be used for described at least one guider for the treatment of the strip of drawing-off, this at least one guider acts on effectively transverse to the traffic direction of described strip, described guider is arranged near the described brake apparatus, and be arranged in the upstream of described brake apparatus particularly with respect to traffic direction, and/or the described input roller that is arranged in described brake apparatus and described draw zone between.
In aspect another is favourable, described input roller to and described outlet roller between described draw zone at least one the drawing-off band act on the described strip for the treatment of drawing-off is set, two this drawing-off bands preferably are set, and each described drawing-off band all twines the right described roller of described input roller.
In aspect another is favourable, in the downstream of described draw zone at least one compacting zone is set with respect to traffic direction, that is, be provided with the compacting zone in the downstream that is positioned at described draw zone, with the tearing strength of the strip that increases described drawing-off by compacting and/or reduce its fibrousness or pilosity.Preferably this compacting zone by the described outlet roller of described draw zone to limit with at least one feed roller with respect to the traffic direction downstream and particularly by the fed downstream roller to limiting.
By producing the most known in the state of the art this compacting zone of high-quality yarn.In described compacting zone, the described strip that launches by aforementioned drawing-off is compacted and is compacted at forward the described roller of the described compacting zone of end to (if needed, also only being single roller perhaps).Formed compacting yarn has fully high tearing strength and especially littler fibroid or pilosity than the anchor yarns that is obtained by non-compacting strip.
In current prior art, whole roller drawing frame forms very longly because of the described compacting zone in downstream, and this becomes shortcoming in many aspects, for example comprises that the area of coverage is big.In addition, especially when improving the compacting zone of existing spinning machine with roller drawing frame, may (that is to say so-called spinning geometry, strip or yarn from roller drawing frame output via thread-carrier, anti-anti-ballooning ring and comprise of the operation of the spinning ring of rotor up to Yarn-spinning spindle) have a negative effect, this just why for fear of broken yarn and usually mandatory requirement reduce spindle speed and thereby reduce yarn production speed.
This is the place that the structure of the described roller drawing frame that proposes according to invention is remedied this problem, total because since only the drawing-off of between two pair of rollers that comprise very compact compacting zone, carrying out that roller drawing frame (regardless of the compacting zone in downstream) is still had is total high compactly designed.This is applied to new machine or system equally and is used in particular for through improved existing machine or system.
In aspect another is favourable, in described compacting zone, be furnished with at least one pneumatic compacting machine, described pneumatic compacting machine specifically comprises the tubulose suction channel, described tubulose suction channel has a plurality of slits, on in described slit at least one, the strip of compacting is directed in described suction channel, and described suction channel is preferably made by plastic material.The strip of carrying described compacting is preferably by being finished at least one ventilative conveyer belt that (preferably its underpart roller) is provided with power by described feed roller, and near described ventilative conveyer belt, described suction channel design has smooth surface and preferably spreads all over whole roller mount districts.The axial end of described suction channel is by jam-pack.Fixing and the aligning of described suction channel in described roller drawing frame undertaken by specially designed closure member.Preferably be arranged in addition, described suction channel contacts feed roller (the right lower rollers of described particularly feed roller) in the mode that no gap cooperates, and is especially also supported against described feed roller.
In aspect another is favourable, in described compacting zone, arrange at least one mechanical ramming machine, the described outlet roller that described particularly mechanical ramming machine is arranged on described draw zone to and at least one feed roller between, the compacting machine that is held in place by magnetic force preferably.For example, be arranged to make described compacting machine to be disposed on the right described lower rollers of the described outlet roller of described draw zone, and be arranged on the right upper roll of described outlet roller (hold-down roller) and contact between the feed roller of the right described lower rollers of described outlet roller by magnetic force.
In aspect another is favourable, at least one roller of the described outlet roller centering of described draw zone and the motion of at least one fed downstream roller are mechanically connected, the right corresponding roller of especially described outlet roller by corresponding described feed roller by the power transmission.Preferably described outlet roller all connects by mechanical means and device rotation each lower rollers with described feed roller centering.
Last favourable aspect in, described at least one feed roller is formed by a plurality of axial part segmentations, each described axial part segmentation all can be installed individually and be removed, and does not hinder remaining axial part segmentation and/or entirely remove or axially displaced described feed roller.Be arranged to particularly, at least two adjacent axial part segmentations interconnect maybe and can interconnect by at least one coupling arrangement.
Description of drawings
By embodiment in detail the present invention is described in detail now with reference to the figure shown in the accompanying drawing, wherein:
Fig. 1 is the schematic side-view according to each of two of roller drawing frame of the present invention possible embodiments;
Fig. 2 is the schematic side-view according to the 3rd embodiment of roller drawing frame of the present invention;
Fig. 3 is the schematic side-view that is used for the closure member of suction channel;
Fig. 4 is a series of independent view that is used to connect the coupling arrangement of segmented roll;
Fig. 5 is used for diagrammatic cross-sectional view and the schematic side-view of outlet roller mechanical attachment to the transmission device of feed roller;
The schematic side-view of machinery compacting machine when Fig. 6 is to use.
The specific embodiment
Should be appreciated that the parts with identical and/or identity function use similar designated in the drawings.
Referring now to Fig. 1 a,, show schematic side-view according to first embodiment of roller drawing frame 100 of the present invention, the figure shows single yarning position, that is, single strip F passes through along as shown by arrows direction.Roller drawing frame 100 comprise the input roller that forms draw zone S to 2/2a and outlet roller to 3/3a, these two rollers between realize the drawing-off generally of strip F.Input roller is twined by the drawing-off band 21/21a (top band/bottom band) that extends in the draw zone S 2/2a.
Do not provide as preliminary draft of the prior art district.Before just entering draw zone S, the strip F that supplies with for compacting is for example had the brake apparatus of three sheaves 5 and is strained lightly.The predraft of wanting realizes by strip F and the winding friction between the sheave 5 for the treatment of drawing-off.The quantity of winding and/or sheave 5 is many more, and brake force is high more.From effective brake line B of brake apparatus to input roller to 1.5 times of the spacing between the clamping lines K of 2/2a less than the average fiber length that is included in the staple fibre the strip F, with guarantee strip F basically not can by at random and thereby distortion unevenly, promptly elongate.
Referring now to Fig. 1 b,, show schematic side-view according to second embodiment of roller drawing frame 100 of the present invention, different with first embodiment as shown in Figure 1a, this brake apparatus that illustrates comprises fixed station 6 and the brake shoe 7 that is loaded by elastic force or magnetic force P, treats that the strip F of drawing-off passes through between fixed station 6 and brake shoe 7.Elastic force P for example can be by generations such as leaf springs, and magnetic force P is for example produced by magnet.
The axially directed of rove for example can perhaps be realized by the optional guide cam of the upstream and downstream that is positioned at brake line B on the workbench 6 by optional direction recess or more than one bar or sheave 5.
Referring now to Fig. 2,, show schematic side-view according to the 3rd embodiment of roller drawing frame 100 of the present invention, the figure shows in the downstream of draw zone S compacting zone V is set, brake apparatus is only formed by two sheaves in this case.This compacting zone V is limited 4/4a by the outlet roller of the draw zone S feed roller to 3/3a and downstream.Feed roller is identical or slightly high to the peripheral speed of 3/3a to the peripheral speed of 4/4a and outlet roller, makes strip F essentially no drawing-off in compacting zone V.
At outlet roller 3/3a and feed roller are provided with suction channel 8 between to 4/4a, this suction channel 8 connects blower fan (not shown) and has near the suction slit 9 that is positioned at the strip F that passes.Conveyer belt 10 is configured to via near suction channel 8 slip suction slit 9, and conveyer belt 10 is provided with power by feed roller to 4/4a.Enter into the air strip F that discharges from draw zone S of compacting as required in the suction slit 9 via ventilative conveyer belt 10.
At least near conveyer belt 10, lower rollers 4a design is provided with the smooth surface of power just like being fit to.Conveyer belt 10 axially and is radially led by guide rod 12.In order to keep conveyer belt 10 cleanings, it can be arranged to contact gently partly at least with the surface of outlet roller to the lower rollers 3a of 3/3a figuratum (for example annular knurl), to produce friction during operation.
In order to strengthen the compacting of strip F, the rear end that makes the suction slit 9 in the suction channel 8 as far as possible near-earth near the clamping lines of feed roller to 4/4a.This realizes in the mode of no gap cooperation or near the right lower rollers 4a of mode ground contact feed roller that no gap cooperates by the suction channel of being made by suitable plastic materials 8, especially also by suction channel 8 is realized against lower rollers 4a is supported.
Referring now to Fig. 4 a,, show two adjacent axial part segmentations (being designed to column) of lower rollers 4a with diagrammatic cross-sectional view, promptly segment section 41a, 41b connect by coupling arrangement 120.Coupling arrangement 120 is designed to allow to remove mechanical connection and will segment section 41a, 41b move axially out the appropriate location.
Referring now to Fig. 4 b,, shows coupling arrangement 120 with diagrammatic cross-sectional view and comprise by securing member 17 interconnected two and half shell 16a and 16b.The end of segment section 41a and 41b is provided with two axially outstanding pin 15a and 15b, and each pin all has and is used for groove (keyway) 18a and the 18b that engage with key 19a, 19b respectively.Key 19a and 19b can be maintained among groove 18a and the 18b by CONTACT WITH FRICTION or permanent magnet.Pin 15a and 15b are connected to each other by half shell 16a and 16b respectively, and as what obviously find out from the top-down view of Fig. 4 d, (top) half shell 16a of half shell comprises respectively two groove (keyway) 161a and the 161b with key 19a and 19b engagement.In addition, half shell 16a has the through hole of immersing oneself in of the securing member 17 that is used for for example being configured to screw.(bottom) half shell 16b comprises the perforate that is used for trip bolt 17.
Referring now to Fig. 4 c,, the segment section 41a and the 41b that show lower rollers 4a comprise the blind hole 42 that is distributed in circumferentially in the appropriate location, it is in place that lower rollers 4a can be rotated by simple tools, to allow half shell 16a and 16b of release fasteners 17 and removal coupling arrangement 120, thereby be convenient to remove and reinstall conveyer belt 10 via the free clearance between pin 15a and the 15b, and needn't be from roller drawing frame axially displaced or remove axial part segmentation 41a/41b.
In embodiment as shown in Figure 2 according to roller drawing frame 100 of the present invention, the complete drawing-off of strip F occur in input roller to 2/2a and outlet roller between the 3/3a, and basically by the compacting of the strip F of drawing-off fully occur in outlet roller to 3/3a and feed roller between the 4/4a.In this arrangement, in fact roller 3a and 4a turn round with same peripheral velocity.
Referring now to Fig. 5 a and Fig. 5 b, diagrammatically show outlet roller the lower rollers 3a of 3/3a is provided with power via transmission device 140 expediently by lower rollers 4a, thus can be by the gearratio of suitably selecting gear wheel setting to want, for example, to allow to make compacting the best of strip F for the fineness of yarn of wanting.
Now particularly referring to Fig. 5 a, the axial end (the perhaps axial outmost segment section of this roller) that shows lower rollers 4a with diagrammatic cross-sectional view is configured with the axial protrudent pin 22 that gear wheel 23 is installed, and this pin 22 is connected to fixed support 25 by anti-friction bearing (for example ball bearing) 24.This fixed support 25 for example is fixed in the outmost roller frame of drawing frame, as also being applied to lower rollers 3a similarly.Pin 26 is installed (for example by interference fit) in support 25, and this pin 26 is via anti-friction bearing (for example ball bearing) 27 carrying gear wheels 28 (idle pulley).Referring now to Fig. 5 b, show the gear wheel 23 that non-rotatably is connected to lower rollers 4a with schematic side-view and drive lower rollers 3a via gear wheel 28.The design of described transmission device 140 and simple to operate is because the spacing between roller 4a and the 3a is constant.In addition, this transmission device 140 also is suitable for improving existing machine or system admirably.
Referring now to Fig. 6, show at last and can also come mechanically compacting strip F by compacting machine 30 (replacing pneumatic compacting machine as shown in Figure 2), for example, this compacting machine 30 is arranged between hold-down roller 3 and the 3b as shown, and for example passes through magnet or the spring assembly backup outlet roller lower rollers 3a to 3/3a.In embodiment as shown in Figure 6, only adopt single feed roller 3b to replace as shown in Figure 2 feed roller to 4/4a.
Claims (18)
1. used in spinning machine roller drawing frame (100) that is used at least one staple fibre strip (F) of drawing-off, described roller drawing frame is characterised in that, described strip (F) draw zone at drafted place (S) generally only (2/2a, 3/3a) is formed, (2/2a, realizes drawing-off generally between 3/3a) at described two pair rollers by two pair rollers.
2. roller drawing frame according to claim 1 (100), it is characterized in that, when when the traffic direction of described strip (F) is observed, at the input roller of described draw zone (S) at least one brake apparatus of upstream arrangement (tensioning apparatus) to (2/2a), the described strip (F) of drawing-off is treated in the essentially no shifting ground predraft of described brake apparatus.
3. roller drawing frame according to claim 2 (100), it is characterized in that the described input roller of described draw zone (S) is to 1.5 times less than the strip average length that is included in the staple fibre in the described strip (F) for the treatment of drawing-off of the spacing between effective brake line (B) of the clamping lines (K) of (2/2a) and described brake apparatus.
4. according to claim 2 or 3 described roller drawing frames (100), it is characterized in that, described brake apparatus is formed by at least one sheave (5), described sheave (5) is twined at least in part by the described strip (F) of drawing-off for the treatment of, treats that by described the strip (F) of drawing-off and the winding friction between the described sheave (5) realize described predraft at this.
5. according to claim 2 or 3 described roller drawing frames (100), it is characterized in that, described brake apparatus is formed by at least one clamping device, the wherein said strip (F) of drawing-off for the treatment of is promoted by elastic force that works at least one fixing friction element (6) or magnetic force particularly, realizes described predraft in the friction that described fixing friction element (6) is located at this at least by the described strip (F) of drawing-off for the treatment of.
6. according to each the described roller drawing frame (100) in the claim 2 to 5, it is characterized in that, be used for described at least one guider of the strip of drawing-off for the treatment of and be arranged in the upstream of described brake apparatus, and/or be arranged in described brake apparatus and described input roller between (2/2a).
7. according to each the described roller drawing frame (100) in the aforementioned claim, it is characterized in that, (2/2a) and described outlet roller are provided with at least one the drawing-off band (21 that acts on the described strip (F) for the treatment of drawing-off in to the described draw zone (S) between (3/3a) at described input roller; 21a).
8. according to each the described roller drawing frame (100) in the aforementioned claim, it is characterized in that, in the downstream of described draw zone (S) at least one compacting zone (V) is set with respect to traffic direction, with the tearing strength of the strip (F) that increases drawing-off by compacting and/or reduce its pilosity.
9. roller drawing frame according to claim 8 (100) is characterized in that, described compacting zone (V) by the described outlet roller of described draw zone (S) to (3/3a) and at least one feed roller (4 subsequently; 4a) limit.
10. according to Claim 8 or 9 described roller drawing frames (100), it is characterized in that, in described compacting zone (V), be furnished with at least one pneumatic compacting machine.
11. roller drawing frame according to claim 10 (100), it is characterized in that, described pneumatic compacting machine comprises suction channel (8), described suction channel (8) has a plurality of slits (9), on in described slit at least one, the strip of described compacting (F) is directed in described suction channel (8).
12. roller drawing frame according to claim 11 (100) is characterized in that, described suction channel (8) contacts feed roller (4 in the mode that no gap cooperates; 4a).
13. according to Claim 8 or 9 described roller drawing frames (100), it is characterized in that, in described compacting zone (V), arrange at least one mechanical ramming machine.
14. roller drawing frame according to claim 13 (100) is characterized in that, described mechanical ramming machine is arranged on the described outlet roller of described draw zone (S) to the compacting machine (30) between (3/3a) and at least one feed roller (3b).
15. each the described roller drawing frame (100) according in the claim 9 to 14 is characterized in that the described outlet roller of described draw zone (S) is at least one roller (3 of (3/3a); 3a) with at least one fed downstream roller (4; Motion 4a) is mechanically connected, and especially described outlet roller is to the corresponding described roller (3 of (3/3a); 3a) by corresponding feed roller (4; 4a) by power transmission (140).
16. each the described roller drawing frame (100) according in the claim 9 to 15 is characterized in that at least one feed roller (4a) is formed by a plurality of axial part segmentations (41a, 41b), each described segment section can be installed individually and be removed.
17. roller drawing frame according to claim 16 (100) is characterized in that, at least two adjacent axial part segmentations (41a, 41b) of described feed roller (4a) are connected to each other by at least one coupling arrangement (120).
18. spinning machine that comprises each described at least one roller drawing frame (100) in the claim as described above.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010012266 DE102010012266A1 (en) | 2010-03-22 | 2010-03-22 | Roller stretching system for spinning machine for stretching fibrous band with staple fibers, comprises stretching zone, in which total stretching of fibrous band takes place by two pairs of rollers |
| DE102010012266.1 | 2010-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102199818A true CN102199818A (en) | 2011-09-28 |
Family
ID=44585414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100678694A Pending CN102199818A (en) | 2010-03-22 | 2011-03-21 | Compact roller drawing frame and spinning machine including same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102199818A (en) |
| DE (1) | DE102010012266A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015007222A1 (en) * | 2015-06-03 | 2016-12-08 | Rotorcraft Ag | Drafting for a roving and roving machine with at least one such drafting |
| DE102017130224A1 (en) * | 2017-12-15 | 2019-06-19 | Maschinenfabrik Rieter Ag | Drafting and compacting device for a spinning machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10052878A1 (en) | 2000-10-19 | 2002-05-08 | Stahlecker Fritz | Conversion of a sliver drawing unit replaces the final cylinder bearing mounting with an adapter to take a stationary suction channel to form a sliver condensing zone for slivers of short staple fibers |
-
2010
- 2010-03-22 DE DE201010012266 patent/DE102010012266A1/en not_active Withdrawn
-
2011
- 2011-03-21 CN CN2011100678694A patent/CN102199818A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010012266A1 (en) | 2011-09-22 |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110928 |