EP3572568A1 - Banc d'étirage ainsi qu'unité de banc d'étirage pour un métier à filer - Google Patents
Banc d'étirage ainsi qu'unité de banc d'étirage pour un métier à filer Download PDFInfo
- Publication number
- EP3572568A1 EP3572568A1 EP19175866.3A EP19175866A EP3572568A1 EP 3572568 A1 EP3572568 A1 EP 3572568A1 EP 19175866 A EP19175866 A EP 19175866A EP 3572568 A1 EP3572568 A1 EP 3572568A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toggle lever
- toggle
- support rod
- load carrier
- drafting
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 12
- 239000000969 carrier Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 210000003127 knee Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- D01H5/46—Loading arrangements
- D01H5/48—Loading arrangements using weights
-
- 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
-
- 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
- D01H5/56—Supports for drafting elements
-
- 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
- D01H5/56—Supports for drafting elements
- D01H5/565—Top roller arms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H3/00—Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
Definitions
- the invention relates to a drafting unit having Drafting for a spinning machine and such a drafting unit, with at least one by means of an adjustment between an operating position and an open position pivotable load carrier.
- Draw frames for spinning machines are known in various designs from the prior art. They serve to distort or distort a sliver, thereby causing a cross-sectional reduction of the fiber. During the delay, the fibers must be shifted as evenly as possible against each other in order to achieve a uniform sliver, which is a prerequisite for the production of a uniform yarn.
- the drafting usually have a plurality of successively arranged pairs of rollers arranged adjacent to each clamp the running between them sliver.
- a roller pair usually consists of a driven lower roller and an applied to the lower roller upper pressure roller.
- a distortion of the sliver is achieved in that increases in the direction defined by the direction of rotation of the roller pairs transport direction of the sliver, the peripheral speed of roller pair to roller pair.
- a drafting unit with a load carrier of the type mentioned is an assembly of a drafting of a spinning machine, which offers the possibility due to their structure, the load carrier eg.
- the load carrier eg.
- the pressure rollers usually arranged on the load carrier of the Take off bottom rollers.
- load carriers have the disadvantage that high actuation forces are required in particular with a simultaneous adjustment of several mutually coupled load carrier, which, for example, lead and burden a common top roller.
- load carrier also require a tightly toleranced or precisely aligned position to each other.
- the invention has for its object to provide a drafting system and a drafting unit for a drafting system for a spinning machine, wherein the drafting unit has a particularly simple structure and a user-friendly operation allows, in particular a simplified operation of multiple, simultaneously opening or closing load carrier is ensured by reducing the operating effort.
- the invention solves the problem by a drafting unit with the features of claim 1 and by a drafting system with the features of claim 8.
- Advantageous developments of the drafting unit are given in the dependent claims.
- Characteristic of the drafting unit according to the invention is that the at least one load carrier is rotationally connected to a support rod, which is rotatable about its longitudinal axis by means of the adjusting device and which is mounted on a support rod receptacle.
- a rotationally fixed connection of one or more load carriers to a central holding rod makes it possible to effect a reliable adjustment of one or more load carriers arranged on the holding rod by a simple rotation of the holding rod about its longitudinal axis.
- To adjust the support rod serves the adjusting device, which allows a comfortable displacement of the at least one load carrier between the operating position and the open position at a predetermined, easily accessible to the user / operator position.
- the drafting unit is characterized in that it allows a reliable positioning of the load carrier or carriers in the desired position. In addition, can be dispensed with further connecting elements between the load carriers. Compared to an adjustment of individual load carrier alone, the adjustable by means of adjusting support rod also has the advantage that a position assurance of all arranged on the support bar load carrier can be ensured via a locking of the support rod in the desired position.
- the adjusting device for displacing the holding rod can basically be configured as desired.
- the adjusting device has a toggle lever arrangement in operative connection with the holding rod, which can be adjusted between a closed position associated with the operating position and an open position associated with the open position.
- the embodiment of the adjusting device with a toggle lever arrangement allows a particularly comfortable and energy-saving adjustment of the load carrier or the load carrier between the operating position and the open position.
- the design of the toggle lever arrangement can be under consideration the desired actuating forces are configured and thus allows a comfortable rotation of the support rod and all arranged on the support rod load carrier.
- the toggle lever arrangement has a first toggle lever and a second toggle lever, wherein the first toggle is pivotable about a first stationary against the holding rod arranged first hinge axis, the first and the second toggle lever articulated via a toggle hinge axis and the second toggle lever has a toggle lever portion spaced apart from the toggle joint axis and pivotally connected to the support rod for rotational movement.
- the first toggle lever is fixed with its first hinge axis relative to the support rod.
- This can for example be realized in that the holding rod and the first toggle lever on a common component, for example.
- On a common portion of a machine frame of the drafting unit are rotatably mounted.
- Such an embodiment of the drafting unit is characterized by its particularly simple structure, which at the same time allows a reliable power transmission and determination of the actuating forces.
- a securing of the operating position of the at least one load carrier can in principle be effected in any desired manner, for example by suitable locking elements which lock the toggle lever arrangement in the closed position.
- the toggle lever assembly is arranged in the closed position in an over-center position.
- a corresponding embodiment of the toggle lever arrangement is characterized in that it can be dispensed with separate locking elements for the closed position and is prevented in a particularly simple and reliable manner that the at least one load carrier during operation not due to the forces then occurring automatically in the direction of the Opening position is adjusted.
- the second toggle lever at an opposite end of the toggle joint axis via a second hinge axis is pivotally connected to a handlebar which is connected at its opposite end of the second hinge axis rotationally connected to the support rod.
- the second toggle lever of the toggle lever assembly is pivotally connected to a handlebar, which is rotationally coupled to a spaced from the second toggle link with the handlebar or arranged on the support rod.
- An actuation of the adjusting device by means of which the support rod is rotated about its longitudinal axis or an advantageously provided toggle lever arrangement between the closed position and the open position is adjusted, can in principle be done in any way.
- Conceivable here is, for example, the use of different electrically, hydraulically or pneumatically acting drives.
- the toggle lever assembly with a hand lever between the operating position and the closed position is adjustable.
- the use of a hand lever is characterized by a particular simplicity and low susceptibility to failure, due to the toggle lever arrangement used, the operating forces are in a comfortable for a user area.
- connection between the hand lever and the toggle lever assembly can be chosen freely within the design conditions.
- the hand lever is pivotable about the first hinge axis together with the first toggle lever.
- a pivotable mounting of the hand lever to the first hinge axis of the first toggle lever allows a particularly compact and simple structure after it can be dispensed with a further bearing axis for the hand lever.
- the hand lever is rigidly connected to the first toggle lever, in particular integrally formed. The rigid connection of the hand lever with the first toggle lever allows in a complementary manner a simpler structure and a power-saving and more comfortable adjustment of the toggle lever assembly between the closed and the open position.
- the hand lever with the toggle lever assembly engageable by engaging elements, so that an actuation of the hand lever via the engagement elements, which couple the hand lever with the toggle lever assembly, to a Operation or the support rod rotating movement of the toggle lever assembly leads.
- This alternative embodiment allows compared to a rigid connection an additional degree of freedom for the structural design and arrangement of the adjusting device constituting components.
- the engagement elements may be formed for example by a recess and a cooperating with the recess web, bolt, projection or the like, wherein one of the components of the hand lever and toggle assembly has the recess and the other component has the cooperating with the recess component.
- releasable locking connections are conceivable as engagement elements.
- Characteristic of the drafting system according to the invention is that this has a drafting unit, in which one or more load carrier are rotationally connected to a common support rod, which is rotatable about its longitudinal axis by means of an adjusting device between an operating position and an open position of the load carrier.
- the support rod is rotatably mounted on a support rod receptacle and allows by their rotatability reliable adjustment and positioning of all arranged on the support bar load carrier.
- a position assurance of the load carrier can also be achieved centrally on the adjustment, so that can be dispensed with individual locks for each load carrier.
- FIG. 1 shown drafting unit 1 of a spinning machine not shown here serves to draw a sliver between the arranged on a support arm 16 of a load carrier 3 pressure rollers 15a, 15b, 15c and the other lower rollers 14a, 14b, 14c of the drafting system, not shown here.
- the roller pairs each formed from a lower roller 14a, 14b, 14c and a pressure roller 15a, 15b, 15c have a different, in the transport direction increasing rotational speed, so as to effect a stretching of the sliver in the area between the pairs of rollers.
- the drafting unit 1 has two parallel to each other on a support rod 4 arranged load carrier 3, each with a support arm 16, which each have three of two pressure rollers 15a, 15b, 15c formed pressure roller pairs whose axes of rotation perpendicular to the longitudinal axis of the associated support arm 16 ,
- the support arms 16 are each rigidly connected to two support bodies 17 arranged on both sides of the support arm 16, which in turn are rotationally connected to a support rod 4 (see FIG. FIG. 3 ).
- an adjusting device 2 For adjusting the load carrier 3 from the operating position to the open position, an adjusting device 2 is provided, which pivots the support arm 16 together with the support members 16 connected to the support arm 17 about a longitudinal axis of the support rod 4.
- a pivoting results from a rotation of the support rod 4, which is rotatably mounted on a support rod receptacle 5, for example.
- a machine housing is mounted.
- a rotation of the support rod 4 in the support rod receptacle 5 causes due to the rotationally fixed arrangement of the support body 17 on the support rod 4, a displacement of the load carrier 3 in accordance with the caused by the adjustment rotational movement of the support rod. 4
- a toggle lever assembly 6 which is adjustable by means of a hand lever 13 between a closed position associated with the operating position and an open position associated with the open position.
- the toggle lever arrangement 6 has a first toggle lever 7 which, according to a preferred exemplary embodiment, can be pivoted on the holding rod receptacle 5 about a first pivot axis 9. According to another preferred, not shown embodiment, the holding rod receptacle and the first hinge axis are arranged spaced from each other. To the the first hinge axis 9 opposite end of the first toggle lever 7 is connected via a toggle hinge axis 11 with the second toggle lever 8.
- the second toggle lever 8 is connected to a toggle lever portion 11 spaced from the elbow lever portion 11, in this preferred embodiment, the knee lever joint axis 11 opposite end of the second toggle lever 8, via a second hinge axis 10 with a handlebar 12, which at the second hinge axis 10 opposite end rotationally fixed to the support rod 4 is connected, so that the rotation of the arm 12 causes an adjustment of the support rod 4 and thus a displacement of the load carrier 3.
- a hand lever 13 which is pivotable about the first hinge axis 9 and cooperates with the toggle lever assembly 6.
- the hand lever 13 is rigidly connected to the first toggle lever 7, whereby a movement of the hand lever 13 leads directly to an actuation of the first toggle lever 7.
- the hand lever 13 and the first knee lever 7 are formed from a piece of material.
- the hand lever 13 and the first toggle lever may be formed from two pieces of material, which are, for example, connected to each other by conventional measures of the shape, material or adhesion.
- the hand lever 13 transfers the toggle lever assembly 6 from an over-center position to the open position.
- the load carrier 3 Only an opposite rearward displacement of the hand lever 13 from the in FIG. 2 illustrated opening position in the in FIG. 1 shown operating position required, wherein the hand lever 13, the toggle lever assembly 6 transferred to the over-center position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018112422.8A DE102018112422A1 (de) | 2018-05-24 | 2018-05-24 | Streckwerk sowie Steckwerkeinheit für eine Spinnmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3572568A1 true EP3572568A1 (fr) | 2019-11-27 |
EP3572568B1 EP3572568B1 (fr) | 2022-07-27 |
EP3572568B8 EP3572568B8 (fr) | 2022-10-19 |
Family
ID=66630204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19175866.3A Active EP3572568B8 (fr) | 2018-05-24 | 2019-05-22 | Banc d'étirage ainsi qu'unité de banc d'étirage pour un métier à filer |
Country Status (9)
Country | Link |
---|---|
US (2) | US11879186B2 (fr) |
EP (1) | EP3572568B8 (fr) |
JP (1) | JP7437881B2 (fr) |
KR (1) | KR20190134526A (fr) |
CN (1) | CN110528126B (fr) |
DE (1) | DE102018112422A1 (fr) |
ES (1) | ES2928624T3 (fr) |
RU (1) | RU2019115880A (fr) |
TW (1) | TW202003937A (fr) |
Citations (3)
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DE2019352A1 (de) * | 1970-04-22 | 1971-11-18 | Skf Kugellagerfabriken Gmbh | Oberwalzen- Trag- und Belastungsvorrichtungen fuer Spinnereimaschinen-Streckwerke |
US3732596A (en) * | 1971-06-16 | 1973-05-15 | Schaeffler Ohg Industriewerk | Top roll loading system for drafting units |
DE3904108A1 (de) * | 1989-02-11 | 1990-08-16 | Zinser Textilmaschinen Gmbh | Belastungstraeger fuer streckwerke |
Family Cites Families (60)
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CN103820891B (zh) * | 2014-03-06 | 2015-03-04 | 江南大学 | 三级牵伸纺纱方法 |
DE102016006066A1 (de) * | 2016-05-19 | 2017-11-23 | Khs Corpoplast Gmbh | Form zur Formung von Hohlkörpern aus Vorformlingen |
-
2018
- 2018-05-24 DE DE102018112422.8A patent/DE102018112422A1/de active Pending
-
2019
- 2019-05-21 CN CN201910421545.2A patent/CN110528126B/zh active Active
- 2019-05-22 ES ES19175866T patent/ES2928624T3/es active Active
- 2019-05-22 TW TW108117625A patent/TW202003937A/zh unknown
- 2019-05-22 US US16/419,302 patent/US11879186B2/en active Active
- 2019-05-22 EP EP19175866.3A patent/EP3572568B8/fr active Active
- 2019-05-23 JP JP2019096673A patent/JP7437881B2/ja active Active
- 2019-05-23 RU RU2019115880A patent/RU2019115880A/ru unknown
- 2019-05-24 KR KR1020190061048A patent/KR20190134526A/ko not_active Application Discontinuation
-
2023
- 2023-12-11 US US18/535,971 patent/US20240229305A9/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2019352A1 (de) * | 1970-04-22 | 1971-11-18 | Skf Kugellagerfabriken Gmbh | Oberwalzen- Trag- und Belastungsvorrichtungen fuer Spinnereimaschinen-Streckwerke |
US3732596A (en) * | 1971-06-16 | 1973-05-15 | Schaeffler Ohg Industriewerk | Top roll loading system for drafting units |
DE3904108A1 (de) * | 1989-02-11 | 1990-08-16 | Zinser Textilmaschinen Gmbh | Belastungstraeger fuer streckwerke |
Also Published As
Publication number | Publication date |
---|---|
KR20190134526A (ko) | 2019-12-04 |
TW202003937A (zh) | 2020-01-16 |
EP3572568B1 (fr) | 2022-07-27 |
CN110528126B (zh) | 2022-07-01 |
RU2019115880A (ru) | 2020-11-23 |
CN110528126A (zh) | 2019-12-03 |
JP7437881B2 (ja) | 2024-02-26 |
DE102018112422A1 (de) | 2019-11-28 |
US11879186B2 (en) | 2024-01-23 |
JP2019203236A (ja) | 2019-11-28 |
ES2928624T3 (es) | 2022-11-21 |
US20240133082A1 (en) | 2024-04-25 |
US20190360128A1 (en) | 2019-11-28 |
US20240229305A9 (en) | 2024-07-11 |
EP3572568B8 (fr) | 2022-10-19 |
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