EP0062185B2 - Dispositif d'étirage d'une bande de fibres pour machines de filature - Google Patents
Dispositif d'étirage d'une bande de fibres pour machines de filature Download PDFInfo
- Publication number
- EP0062185B2 EP0062185B2 EP82102082A EP82102082A EP0062185B2 EP 0062185 B2 EP0062185 B2 EP 0062185B2 EP 82102082 A EP82102082 A EP 82102082A EP 82102082 A EP82102082 A EP 82102082A EP 0062185 B2 EP0062185 B2 EP 0062185B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drafting
- zone
- mechanism according
- main
- cylinder
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
-
- 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
- D01H5/44—Adjusting drafting elements, e.g. altering ratch
-
- 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
- D01H5/46—Loading arrangements
- D01H5/50—Loading arrangements using springs
- D01H5/505—Loading arrangements using springs for top roller arms
Definitions
- the invention relates to a drafting device for spinning machines, in particular for drawing, for processing a sliver with a stacking area of cotton and / or plastic fibers in a preliminary and a main drawing zone, comprising drawing zones delimiting sub-cylinders arranged on a machine frame and above that assigned to each sub-cylinder Printing cylinder, wherein the first printing cylinder delimiting the main stretching zone is arranged so as to be displaceable and fixable on an arc around the axis of rotation of the corresponding lower cylinder.
- DE-PS 1250315 shows and describes a drafting system with, viewed in the running direction of the sliver, an input cylinder pair, a middle cylinder pair and an output cylinder pair, each consisting of a lower cylinder and an associated pressure cylinder.
- the input and middle pairs of cylinders together form a leading, while the middle and output pairs of cylinders form a main stretching zone.
- the pair of input cylinders viewed in the direction of travel of the sliver, can be moved linearly back and forth in order to change the length of the pre-stretching zone. Both cylinders can be moved independently of each other.
- the middle and the output lower cylinder are rigid, while the middle and the output pressure cylinder are arranged linearly displaceable in the same way as the input pressure cylinder.
- All three printing cylinders are vertically movable with respect to a base plate receiving the pedestals of the lower cylinders, so that when the printing cylinders are linearly displaced, in combination with the vertical mobility, they can perform a movement around the fixed or fixed lower cylinders. This makes it possible to change the length of the main stretching zone and to adapt it to a certain extent to the stack length.
- the output lower cylinder has a larger diameter than all other cylinders.
- the bearing blocks of the printing cylinders are arranged so as to be linearly displaceable on the bearing blocks of the lower cylinders.
- the pressure on the pressure cylinder is exerted by spring-loaded pressure pistons, which are attached to a swivel and lockable bracket.
- CH-PS 426 570 shows and describes a drafting system with a pre-stretching and a main stretching zone, in which a pressure cylinder is arranged pivotably around the axis of a lower cylinder, as a result of which the loop of the sliver is lengthened or shortened.
- a pressure cylinder is arranged pivotably around the axis of a lower cylinder, as a result of which the loop of the sliver is lengthened or shortened.
- the accuracy of the assembly is also decisive for the service life of a bearing, e.g. with respect to the parallelism of the pressure and sub-cylinders to one another and with regard to the exact alignment of the cylinder shafts to the elements driving the shafts.
- Another disadvantage is the large diameter of the output cylinder, since this increases the distance between the clamping lines of the main stretching zone.
- the drafting system has the disadvantage that in order to e.g. To be able to run in a can, an additional deflection of the belt after the drafting system is required, which is necessary for the belt at belt speeds of 13.3 m / sec. and more results in an additional, undesirable centrifugal load and thereby creates a procedural disadvantage.
- a drafting device with three drawing zones is known from French Patent No. 1196 694, in which the lower cylinders, as well as the printing cylinders, are arranged opposite one another in concentric circles, the printing cylinders being located on the outer circle.
- Such drafting systems are used in roving or ring spinning machines and work at belt speeds at the exit of the drafting system of max. 40 m / min. in leader and max. 20 m / min. in ring spinning machines.
- the arrangement on concentric circles was chosen in order to obtain more space for printing cylinders of large diameter without increasing the distance between adjacent clamping lines. These Increasing the diameter reduces the risk of winding on the pressure cylinders of such drafting systems.
- an intermediate guide element is provided, on which the fiber sliver or the fiber sliver is deflected such that the fiber sliver or the fiber sliver passes the mentioned clamping lines in the tangential direction.
- the fiber sliver is deflected on a roller only on the last lower roller, seen in the running direction of the fiber sliver, and only after the clamping line.
- An advantageous embodiment of the drafting arrangement consists in the arrangement of the pressure cylinders on the pivotable arm. This means that even wide fiber slivers can be easily and safely inserted into the drafting system.
- Another advantageous embodiment consists in that the displaceable printing cylinders can be adjusted by means of rastering to adapt to the stack length, and the extent of the displacement can be measured by means of a scale, so that they can be displaced quickly and precisely, which, despite the displaceability of the printing cylinders, ensures precise parallel guidance of the Pressure cylinder to the lower cylinders guaranteed.
- the displacement of the second pressure cylinder delimiting the main stretching zone on an arc around the axis of rotation of the corresponding lower cylinder enables the sliver to be tangentially fed into this cylinder pair, regardless of whether a push rod with positive or negative deflection of the sliver is used.
- the small diameter of the second lower cylinder delimiting the main drawing zone has the advantage that, despite the also advantageous large diameter of the previous lower cylinder, an optimally short clamping distance can be achieved.
- a drafting system 1 comprises a machine frame 2, on which the arm parts 4 forming a double arm are pivotably mounted by means of a hinge pin 3.
- the arm parts 4 each comprise an arch part 5 and an arch part 6 and an end part 7.
- a notch 8 is provided on the end part 7 for receiving a fixing bolt 9 each.
- the fixing bolt 9 is part of a pneumatic cylinder 10.
- the fixing bolt 9 is designed as a part matching the notch 8 and serves to fix the double arm in the working position shown in solid lines in FIGS. 1 and 2.
- the operating position of the double arm is shown in Fig. 1 with dash-dotted lines.
- Lower cylinders 11, 12, 13 and 14 are rotatably mounted on machine frame 2 by means of axes 15, 16, 17 and 18.
- the lower cylinders 11, 12, 13 and 14 are individually driven (not shown).
- the arcuate parts 5 each contain an arcuate guide slot 19 coaxial with the axis 15 and the arcuate portions 6 each have an arcuate guide slot 20 coaxial with the axis 17.
- the guide slots 19 serve to guide one pair of bearing blocks 21 and 22 (only part of the pair in FIG 2), while the guide slots 20 serve to guide a pair of bearing blocks 23.
- a guide slot 60 coaxial with the axis 18 is provided for guiding a pair of bearing blocks 25.
- a pair of bearing blocks 22 is arranged at the entrance of the drafting system and a pair of bearing blocks 24 at the transition from the arch part 5 to the arch part 6 on the double arm 4.
- the drafting system 1 comprises in the following sequence a pressure roller 27, rotatably mounted in the bearing block pair 22, a first pressure cylinder 28 delimiting the beginning of the pre-stretching zone, rotatably supported in the bearing block pair 21, one the end of the pre-stretching zone defining second pressure cylinder 29, rotatably supported in the pair of bearing blocks 24, a first pressure cylinder 30 delimiting the beginning of the main stretching zone, rotatably supported in the pair of bearing blocks 23 and a second pressure cylinder 31 delimiting the end of the main stretching zone, rotatably supported in the pair of bearing blocks 25.
- the cylinders 11 and 28 form the first, viewed in the running direction of the sliver, the cylinders 12 and 29 the second, the pre-stretch zone delimiting sliver.
- the cylinders 13 and 30 form the first, the cylinders 14 and 31 the second, the main stretching zone delimiting fiber sliver.
- the bearing block pairs 24 and 22 are arranged in a fixed manner, while the bearing block pairs 21 and 23, respectively, the guide slots 19 and 20, respectively, are arranged so as to be movable and fixable again to adapt to the length of the sliver to be processed.
- this is Bearing block pair 25 arranged in the guide slot 60 so as to be movable and fixable again, in order to ensure the tangential entry of the sliver despite the changeable entry position of the sliver, caused by the displacement of the pressure cylinder 30.
- raster teeth 32 and 32 are shown on the arc parts 5 and 6 (FIGS. 3 and 4). and a raster scale 33 corresponding to the number of teeth and, on the other hand, a raster device 34 which engages in the teeth 32 is provided on the bearing block pairs 21 and 23.
- This grid device 34 is assigned to each individual bearing block of the bearing block pairs 21 and 23.
- Such a bearing block comprises a bearing block lower part 35 with a guide opening 36 for receiving and guiding a shaft bearing 37 of a pressure cylinder shaft 38.
- Each pressure cylinder shaft 38 serves to receive the pressure roller 27 and the pressure cylinders 28, 29, 30 and 31.
- the lower bearing block 35 is also designed as a cylinder, with a piston 39, an associated piston rod 40, a spring 41, a compressed air connection 42 and a ventilation opening 43.
- a cylinder block upper part 44 which is fixedly connected to the bearing block lower part 35, serves as the end of the cylinder.
- a guide pin 45 belonging to the grid device 34 is firmly screwed into the bearing block upper part 44 by means of thread 46 and serves to guide a grid part 47.
- the grid part 47 can be against the Force of the spring 48 can be lifted off the upper bearing block 44.
- the raster teeth 32 provided on the arch parts 5 and 6 engage in the teeth 49 provided in the raster part 47 when the raster part 47 rests on the bearing block upper part 44.
- two guide pins 50 are pressed into the bearing block upper part 44, which protrude into the guide slots 19 and 20, respectively, and which are selected in diameter in such a way that the individual bearing block 21, 23, 25 is guided precisely along the guide slot 19, 20, 60 results.
- a fixing screw 51 with nut 52 fixes the individual bearing blocks on the arch parts 5 and 6, or respectively on the end part 7.
- the fixing screw 51 (FIGS. 3 and 4) is loosened, the raster part 47 is lifted along the guide bolt from the upper bearing block part 44 by manual force against the force of the spring 48, and the bearing block pair 21 is manually lifted and / or 23 on the arch part 5 or 6, guided along the guide slot 19 or 20.
- the degree of displacement can be read on the raster scale 33.
- the bearing block pairs 24, 25 and 22 comprise the same elements as the described bearing block pairs 21 and 23 with the exception that the raster device 34 is omitted.
- the bearing block pairs 24 and 22 are arranged in a fixed manner. The mobility of the bearing block pairs 25 will be described later.
- the sliver 26 after the last sliver clamping point, given by the cylinders 14 and 31, is combined in a hopper 53 and passed on to a rotatably mounted pair of calender rolls 54 known per se.
- the pair of calender rolls 54 consists of a fixedly arranged calender roll 55 and a calender roll 56 arranged displaceably therefrom.
- the funnel 53 is arranged such that it can be tilted in the direction of the arrow B and projects with the sliver outlet part 57 into the sliver feed gap (not shown) of the pair of calender rolls 54.
- the funnel 53 can be tilted in order to be able to comfortably guide the strip discharged from the last rollers 14 and 31 into the funnel.
- the drafting device 1 can also be provided with a so-called push rod 58 (FIG. 5) which, provided in the main drawing zone, deflects the fiber sliver positively and in the process guides the fibers within the drawing zone as an aid.
- a positive deflection is to be understood as a deflection with a radius directed away from the machine frame 2.
- the push rod 58 is provided in the main stretching zone in such a way that when the clamping stretch of the main stretching zone is extended, given by the clamping points of the cylinder pairs consisting of the cylinders 13 and 30, or respectively 14 and 31, by pushing back the pressure cylinder 30 against that in FIG. 1 Position shown with dash-dotted line, the deflection around the push rod 58 is reduced.
- the bearing block pair 25 is positioned or fixed in such a way that the sliver 26 is tangentially caught by the cylinders 14 and 31.
- the drafting system 1 can be provided as a variant to the push rod 58 with a push rod 59 (FIG. 6) which deflects the fiber sliver negatively.
- a push rod 59 FIG. 6
- the deflection of the sliver given by the push rod remains constant.
- the bearing block pair 25 is shifted into the position shown in FIG. 6.
- the upper guide pins 50 lie in this position (in the viewing direction according to FIG.
- a pneumatic cylinder 62 which is pivotally connected to the machine frame 2 and whose piston rod end part 63 is connected to the two arm parts by means of a rod 64, serves to lift the arm parts 4 into the operating position shown in dash-dotted lines in FIG. 1 and thus to introduce a sliver into the drafting system 4 is connected.
- the fiber sliver is placed over the lower cylinders 11, 12, 13, 14 and the funnel 53 tilted in the direction B for introduction into the drafting system in the open position of the drafting system.
- the drafting system is closed again by reversing the function of the cylinder 62 and locked again by reversing the function of the cylinder 10.
- the drawn material is fed into the hopper 53 and into the pair of calender rolls 54.
- the stretch value can then be switched to production.
- short to long staple fibers is intended to mean cotton and chemical fibers with a staple length of up to 80 mm.
- a diameter of 90 mm is selected, so that even when processing fibers with a stack length of 80 mm, a wrap angle of the sliver on the mentioned lower cylinder of experience can be guaranteed by a maximum of 45 degrees.
- a diameter was chosen for the second lower cylinder 14 of the main stretching zone which was essentially one third of the diameter of the first lower cylinder mentioned 13 corresponds, for example of 28 mm.
- ionizers can be used in a manner known per se.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82102082T ATE18265T1 (de) | 1981-04-06 | 1982-03-15 | Streckwerk fuer spinnmaschinen zur bearbeitung eines faserbandes. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH230981 | 1981-04-06 | ||
CH2309/81 | 1981-04-06 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84112016.5 Division-Into | 1984-10-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0062185A1 EP0062185A1 (fr) | 1982-10-13 |
EP0062185B1 EP0062185B1 (fr) | 1986-02-26 |
EP0062185B2 true EP0062185B2 (fr) | 1991-02-27 |
Family
ID=4230788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82102082A Expired - Lifetime EP0062185B2 (fr) | 1981-04-06 | 1982-03-15 | Dispositif d'étirage d'une bande de fibres pour machines de filature |
Country Status (6)
Country | Link |
---|---|
US (1) | US4413378A (fr) |
EP (1) | EP0062185B2 (fr) |
JP (1) | JPS57176225A (fr) |
AT (1) | ATE18265T1 (fr) |
DE (1) | DE3269277D1 (fr) |
IN (1) | IN159231B (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE19795T1 (de) * | 1981-10-29 | 1986-05-15 | Rieter Ag Maschf | Vorrichtung zum kontinuierlichen komprimieren oder ermitteln der masse eines faserbandes. |
JPS60231832A (ja) * | 1984-05-02 | 1985-11-18 | Hara Shiyokuki Seisakusho:Kk | 練條機等におけるドラフト方法 |
DE3542355A1 (de) * | 1985-11-29 | 1987-06-04 | Zinser Textilmaschinen Gmbh | Streckwerk einer spinnereimaschine |
DE3864137D1 (de) * | 1988-01-11 | 1991-09-12 | Rieter Ag Maschf | Vorrichtung zur ueberwachung einer wickelbildung an einer walze zur fuehrung eines textilen faserbandes. |
US4999884A (en) * | 1988-03-15 | 1991-03-19 | Maschinenfabrik Rieter Ag | Drawing mechanism for drawing textile fibers |
DE3832061A1 (de) * | 1988-09-21 | 1990-03-22 | Zinser Textilmaschinen Gmbh | Belastungseinrichtung fuer ein streckwerk, insbesondere einer strecke |
DE3832060A1 (de) * | 1988-09-21 | 1990-03-22 | Zinser Textilmaschinen Gmbh | Streckwerk fuer spinnereimaschinen |
DE3832063A1 (de) * | 1988-09-21 | 1990-03-22 | Zinser Textilmaschinen Gmbh | Streckwerk fuer eine spinnereimaschine |
DE3832062A1 (de) * | 1988-09-21 | 1990-03-22 | Zinser Textilmaschinen Gmbh | Streckwerk fuer eine spinnereimaschine, insbesondere fuer eine strecke |
DE3933165A1 (de) * | 1989-10-04 | 1991-04-11 | Rieter Ag Maschf | Spinnmaschinen mit doppelriemchen-streckwerken |
JPH042680U (fr) * | 1990-04-25 | 1992-01-10 | ||
WO1992005301A1 (fr) * | 1990-09-20 | 1992-04-02 | Maschinenfabrik Rieter Ag | Banc d'etirage avec cylindre de sortie regule |
DE19923576A1 (de) * | 1999-05-21 | 2000-11-23 | Riebag Riesaer Beteiligungs Ag | Kämmmaschine mit mehreren Kämmköpfen |
DE10145670A1 (de) * | 2001-09-11 | 2003-03-27 | Rieter Ag Maschf | Halterung für Klemmwalzen |
JP6151698B2 (ja) * | 2011-09-21 | 2017-06-21 | ラインハルト ケーニグ | 紡績編機用折り畳み練条システム |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126587A (en) * | 1964-03-31 | Apparaius | ||
FR443922A (fr) * | 1912-05-15 | 1912-10-05 | Wladimir Schevelin | Procédé et appareil pour la fabrication du filé avec des fibres de longueur égale ou inégale et courte de préférence |
FR742600A (fr) * | 1931-12-17 | 1933-03-10 | ||
US2343259A (en) * | 1939-11-25 | 1944-03-07 | Saco Lowell Shops | Drawing mechanism for spinning and roving frames |
BE445162A (fr) * | 1941-05-01 | |||
US2388760A (en) * | 1941-12-01 | 1945-11-13 | Casablaneas High Draft Company | Drafting mechanism for textile fibers |
FR880968A (fr) * | 1941-12-03 | 1943-04-12 | Blin & Blin | Perfectionnements à l'étirage des boudins et mèches de fibres textiles |
GB871873A (en) * | 1958-03-12 | 1961-07-05 | Rieter Joh Jacob & Cie Ag | Improvements relating to drafting arrangements for textile spinning machines |
FR1196694A (fr) * | 1958-06-06 | 1959-11-25 | Duvivier Et Six Pere & Fils | Perfectionnements aux systèmes étireurs pour machines de filature |
US3058170A (en) * | 1959-03-30 | 1962-10-16 | Machinecraft Inc | Spinning frames |
US3060669A (en) * | 1960-02-02 | 1962-10-30 | Beaunit Mills Inc | Drafting apparatus |
US3778995A (en) * | 1971-09-09 | 1973-12-18 | Deering Milliken Res Corp | Drafting method |
US3748694A (en) * | 1971-11-03 | 1973-07-31 | Schaeffler Ohg Industriewerk | Drafting system having a supporting roll for offset top feed roll |
-
1982
- 1982-03-15 EP EP82102082A patent/EP0062185B2/fr not_active Expired - Lifetime
- 1982-03-15 DE DE8282102082T patent/DE3269277D1/de not_active Expired
- 1982-03-15 AT AT82102082T patent/ATE18265T1/de not_active IP Right Cessation
- 1982-03-22 IN IN317/CAL/82A patent/IN159231B/en unknown
- 1982-03-29 US US06/362,873 patent/US4413378A/en not_active Expired - Lifetime
- 1982-04-06 JP JP57056152A patent/JPS57176225A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3269277D1 (en) | 1986-04-03 |
IN159231B (fr) | 1987-04-18 |
US4413378A (en) | 1983-11-08 |
EP0062185A1 (fr) | 1982-10-13 |
ATE18265T1 (de) | 1986-03-15 |
JPH0229769B2 (fr) | 1990-07-02 |
EP0062185B1 (fr) | 1986-02-26 |
JPS57176225A (en) | 1982-10-29 |
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