EP3730682B1 - Trageinrichtung für ein riemchenstreckwerk - Google Patents

Trageinrichtung für ein riemchenstreckwerk Download PDF

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Publication number
EP3730682B1
EP3730682B1 EP20170502.7A EP20170502A EP3730682B1 EP 3730682 B1 EP3730682 B1 EP 3730682B1 EP 20170502 A EP20170502 A EP 20170502A EP 3730682 B1 EP3730682 B1 EP 3730682B1
Authority
EP
European Patent Office
Prior art keywords
apron
support
bridge
carrying device
roller
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.)
Active
Application number
EP20170502.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3730682A1 (de
Inventor
Jochen Dressen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saurer Intelligent Technology AG
Original Assignee
Saurer Intelligent Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saurer Intelligent Technology AG filed Critical Saurer Intelligent Technology AG
Publication of EP3730682A1 publication Critical patent/EP3730682A1/de
Application granted granted Critical
Publication of EP3730682B1 publication Critical patent/EP3730682B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H5/26—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
    • D01H5/86—Aprons; Apron supports; Apron tensioning 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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/34—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using air-jet streams
    • 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
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D01H5/88—Cradles; Tensors

Definitions

  • the invention relates to a support device for an apron drafting system of a spinning machine, with a first and a second support, which are each designed to detachably accommodate an apron bridge and/or to rotatably support a drafting roller.
  • Drafting systems for spinning machines are known in a variety of configurations from the prior art. They are used to stretch or warp a sliver, which causes a reduction in the cross-section of the fiber. During the delay, the fibers must be transported next to one another as evenly as possible in order to achieve an even sliver, which is a prerequisite for the production of an even yarn.
  • the drafting devices To stretch the sliver, the drafting devices generally have a plurality of pairs of rollers which are arranged one behind the other and clamp the sliver running between them.
  • a pair of rollers usually consists of a driven bottom roller and an upper pressure roller resting against the bottom roller.
  • a delay in the sliver is achieved in that the peripheral speed increases from pair of rolls to pair of rolls in the transport direction of the sliver defined by the direction of rotation of the pairs of rolls.
  • the individual driven rollers are each arranged on a support device, in particular a drafting system carriage, which, arranged one behind the other in the transport direction of the sliver, form a drafting system lower part of a drafting system.
  • a support device in particular a drafting system carriage, which, arranged one behind the other in the transport direction of the sliver, form a drafting system lower part of a drafting system.
  • So-called double apron drafting systems are particularly widespread, in which in the area of the main drafting zone a small apron is guided around a first upper and lower roller, which is deflected towards the second pair of rollers by a deflection device from the fiber guiding direction into the return direction, so that the sliver between the upper and and under strap is guided.
  • the straps designed as an endless belt such as, for example, from the EP 2 034 060 A1 known, at least to the drivable lower roller, a deflection device and a Tensioning device, which keeps the lower aprons at the pretension necessary for operation.
  • the lower apron can be driven via the drivable lower roller, the transmission of the drive torque from the roller to the apron usually being ensured via a frictional connection with an upper apron or an upper roller.
  • Another support device for a apron drafting system of a spinning machine is from EP 2 573 230 A2 known.
  • the fiber guidance of the sliver or the draft quality is essential for the yarn quality, whereby a uniformly spun yarn is achieved by a uniform draft of the sliver.
  • the invention is based on the object of providing a support device for an apron drafting system and an apron drafting system of a spinning machine, which allow a quick change of an apron.
  • the invention solves the problem by a carrying device with the features of claim 1 and by a strap drafting system with the features of claim 9.
  • Advantageous developments of the invention are specified in the dependent claims.
  • the first support has a base element and a guide section that can be detachably connected to the base element.
  • the guide section has a bearing opening for the rotatable mounting of the drafting roller and a first receiving opening for receiving a first bearing section of the apron bridge.
  • the support device has two supports which can be arranged at a distance from one another on, which can preferably be arranged on a base support of the support device. While the second support is designed to releasably accommodate the apron bridge and/or to rotatably support the drafting roller, it is provided that the first support is designed at least in two parts and has a base element, which can be connected in particular to the base support, and a base element that can be connected detachably to the base element has connectable guide portion. This has a bearing opening for the rotatable mounting of the drafting roller and a receiving opening for receiving a first bearing section of the strap bridge.
  • this has a bearing opening, within which, for example, a bearing of the drafting roller can be detachably accommodated.
  • the guide section also has a first receiving opening, which is suitable for arranging a first bearing section of the strap bridge, via which the strap bridge is thus supported on the first support.
  • the guide section can be separated from the base element makes it possible, if necessary, to easily change a small apron running around the drafting roller and the apron bridge.
  • the default roller and the apron bridge are freely accessible on one side, so that the apron to be replaced can be easily pulled off the then free ends of the apron bridge and the default roller via the given accessibility.
  • a new apron can then be easily arranged and tensioned on the apron bridge and the delay roller.
  • the guide section is mounted on the base element, with the first bearing section of the apron bridge again being arranged in the first receiving opening and the drafting roller being arranged rotatably again in the bearing opening in the operating position then present.
  • the support device enables a particularly simple and quick replacement of the apron on the drafting system carriage, after easy access to the apron is provided by a simple removability of the guide section.
  • apron drafting devices known from the prior art there is the possibility of faster restarting of a spinning station of a textile machine assigned to the respective drafting device.
  • connection of the guide section to the base element can basically be freely selected, with this being configured in such a way that on the one hand the apron bridge and the drafting roller are reliably secured in position in the operating position, but at the same time there is also a simple and quick removal option.
  • the guide section in the operating position is releasably connected to the base element via a linear guide, in particular a dovetail guide, aligned in the longitudinal axis direction of the drafting roller and the apron bridge.
  • a linear guide for arranging the guide section on the base element ensures, in the operating position, a particularly reliable arrangement of the drafting roller and the strap bridge on the first support.
  • the positive locking existing via the linear guide, in particular the dovetail guide transversely to the longitudinal axis of the drafting roller and the apron bridge in the operating position prevents a displacement of the guide section relative to the base element in a particularly reliable manner and thus ensures reliable rotatable mounting of the drafting roller and a stationary arrangement of the apron bridge.
  • the linear guide offers a guided adjustment of the guide section relative to the base element, directed in the longitudinal axis direction of the apron bridge and the drafting roller, so that tilting is reliably prevented both during disassembly and assembly of the guide section on the base section.
  • a stationary arrangement of the drafting roller and the apron bridge in the operating position is advantageous for the function of the support device, which can preferably be designed as a drafting system carriage. In principle, this can be produced in any manner.
  • a securing element in particular a securing screw, is provided for locking the guide section on the base element in the operating position. Any securing elements can be used to secure the position of the guide section on the base element, for example also spring-loaded latching elements or clamps, which fix the guide section in the operating position on the base element.
  • a locking screw which extends, for example, through a section of the guide section into the base element and can be screwed into the base element, enables the position to be secured in a particularly reliable manner of the guide portion on the base member.
  • the use of a locking screw is characterized by its small space requirement and low costs.
  • the arrangement of the second bearing section of the apron bridge, opposite the first bearing section of the apron bridge, on the second support can in principle be freely selected.
  • the strap bridge can be screwed to the support in order to reliably ensure a stationary arrangement of the strap bridge on the second support.
  • the second support for releasably receiving the second bearing section of the apron bridge has a second receiving opening with an inlet bevel running obliquely to a receiving axis, the receiving axis in the operating position of the apron bridge being connected by a first and second receiving opening axis, and has a first latching means which is spaced apart from the run-in slope and delimits the second receiving opening, which in the operating position can be brought into engagement with a complementary second latching means on the second bearing section, the second bearing section of the strap bridge in the second receiving opening between the operating position and a release position in which the first latching means and the second latching means are disengaged.
  • the strap bridge is arranged on the support device initially by arranging the second bearing section on the second support.
  • the apron bridge which is aligned obliquely to the receiving axis, which in the operating position of the carrying device extends parallel to a longitudinal axis of the apron bridge and/or the drafting roller, is pushed with the second bearing section along the inlet slope running obliquely to the receiving axis into the second receiving opening of the second support.
  • the strap bridge is then swiveled into a position in which the strap bridge is aligned parallel to the drafting roller due to the pivoting possibility provided by the configuration of the second receiving opening with an inlet slope.
  • the strap bridge preferably rests with a section of the second bearing section on a shoulder of the second support. Furthermore, the is preferably located as in The first latching means designed in the direction of the entry slope of the projecting latching body engages with the second latching means, which is preferably designed as a latching recess, on the second bearing section, as a result of which there is then a protection against displacement in relation to the second support in the longitudinal axis direction of the strap bridge or in the direction of the receiving axis.
  • the guide section can then be pushed onto the first bearing section and the free end of the draft roller in a simple manner in the receiving axis direction or in the longitudinal axis direction of the apron bridge and the drafting roller, e.g. equipped with an advantageously provided linear guide.
  • the configuration allows a simple and reliable arrangement and, if necessary, an exchange of the strap bridge on the second support.
  • the form fit preferably formed via the latching body and the latching recess also prevents the strap bridge from moving out of its position corresponding to the operating position when the guide section is removed from the base element. This embodiment of the invention thus facilitates a strap change in a supplementary manner.
  • first and second latching means can in principle be freely selected.
  • the second latching means is designed as a slot and/or the first latching means is designed as a latching pin aligned perpendicularly to the longitudinal axis of the drafting roller.
  • the use of a latching means in the form of a slot enables the strap bridge to be adjusted on the second support, so that the strap bridge can be optimally aligned.
  • the locking pin is characterized by its particularly simple design and high functional reliability.
  • the latching pin can be provided with the strap bridge and the elongated hole with the second support.
  • the drafting roller can be arranged with its end opposite the first support in any desired manner, for example also on the second support.
  • the carrying device is designed to carry a drive unit, the drafting roller being able to be mounted stationarily on the drive unit with its end opposite the first support.
  • the direct mounting of the drafting roller on the drive unit means that a separate mounting on a support opposite the first support can be dispensed with.
  • the second support can be designed in one piece with the housing of the drive unit, resulting in a particularly compact configuration.
  • the carrying device can form an at least partially assembled unit according to one of the preferred embodiments described above.
  • the first and/or second support can be arranged at a distance from one another on the base support and/or can be connected to the base support at a distance from one another.
  • the base element of the first support can be connected to the base support.
  • the guide section can also be detachably connected to the base element. The same can apply in a corresponding manner to the linear guide designed, for example, as a dovetail guide, the delay roller that can be mounted on the drive unit, the strap bridge that can be mounted longitudinally displaceably along the receiving axis, and the engageable first and second latching means.
  • a apron drafting system for a spinning machine, in particular an air-jet spinning machine, with a support device with a lower apron that is guided over a drivable lower roller and is supported in the area of a main drafting zone by a sliding section of an apron bridge, is characterized in that the support device is designed in accordance with one or more of the above configurations is, in particular in that the first support has a base element connected to the base support and a guide section detachably connected to the base element with a bearing opening for the rotatable mounting of the drafting roller and a first receiving opening for receiving a first bearing section of the apron bridge.
  • a correspondingly designed apron drafting system is characterized in that it enables a worn apron to be changed particularly easily and quickly, for which purpose only the guide section has to be removed from the base element after the creation of accessibility to the carrying device, which makes it possible to pull off the belt to be exchanged Strap over the then free ends of the drafting roller and the strap bridge results in the course of a pivoting of the free end of the apron bridge in the direction of the drafting roller to release the strap tension. Then can then in a simple way, the new strap on the default roller and the strap bridge are arranged and tightened again. The alignment and belt tension required for operation are then produced by attaching the guide section to the base element.
  • FIG 5 is a perspective view of a apron drafting system 1 of a spinning station of a textile machine, not shown here, that can be fixed to the textile machine via latching hooks 21 .
  • the apron drafting system 1 has a drafting system upper part 19 which is connected in an articulated manner to a drafting system lower part 2 , with pivoting taking place by actuating a handle 20 .
  • the upper part 19 of the drafting system rests against the corresponding, driven lower rollers 3, 4, 5, 6 of the lower part 2 of the drafting system with four upper rollers arranged one behind the other in the direction in which a sliver, not shown here, runs through the apron drafting system 1.
  • the lower rollers 3, 4, 5, 6 include the infeed roller 3, which first comes into contact with the sliver, which is driven by a roller drive 7 and forms the first lower roller of the lower part 2 of the drafting system.
  • the Infeed roller 3 is arranged together with the roller drive 7 on a support device 8a designed as a drafting system carriage, which—like the support devices 8b, 8c, 8d explained below, which are each designed as a drafting system carriage—is designed for connection to a frame 16 of the lower part 2 of the drafting system is (cf. 2 ).
  • the drafting system carriage 8a is arranged downstream of the drafting system carriage 8b in the running direction of the sliver, on which a first drafting roller 4 with a drafting roller 4 driving roller drive 7 is arranged.
  • the drafting system carriage 8b is in turn followed by the drafting system carriage 8c, viewed in the running direction of the sliver, which has a second drafting roller 5 and a roller drive 7 that drives the drafting roller 5 .
  • the drafting system carriage 8c also has a strap bridge 9, which is held with its opposing bearing sections 27, 28 on a first and a second support 11a, 11b, which are connected to a base support 17 of the drafting system carriage 8c.
  • a lower apron 10 runs around the apron bridge 9 and the second drafting roller 5 on the drafting system carriage 8c and ensures that a sliver does not come into direct contact with the second drafting roller 5 .
  • the drafting system carriage 8c is ultimately arranged downstream of the drafting system carriage 8d in the transport direction of the sliver, which has an outlet roller 6 driven by a roller drive 7 and via which the drafted sliver leaves the apron drafting system 1 .
  • the first support 11a of the drafting system carriage 8c has a base element 12 connected to the base support 17 and a guide section 13 that can be detachably arranged on the base element 12. in the in figure 1 In the illustrated operating position of the drafting system carriage 8c, the guide section 13 is shown in its installed position, with the guide section 13 being arranged on a guide element 25 of the base element 12 via an opening (not shown here).
  • a screw 23 is used, which can be screwed through an opening 24 in the guide section 13 into the guide element 25 on the base element 12.
  • the first bearing section 27 of the apron bridge 9 is located in a continuous first receiving opening 15 on the guide section 13.
  • a delay roller bearing 22 arranged on the end of the delay roller 5 opposite the roller drive 7 is located in the bearing opening 14 provided for this purpose the guide section 13.
  • the lower apron 10 which is held in its position on the apron bridge 9 and the drafting roller 5 via an apron guide 18 arranged on the base support 17, is replaced by loosening the screw 23 and pulling the guide section 13 off the base element 12 down to the in figure 3 shown position. In this position it is possible to pull off the lower apron 10 unhindered via the then free ends of the drafting roller 5 and the apron bridge 9 and then to arrange a new lower apron 10 on the drafting system carriage 8c.
  • the strap bridge 9 is shifted by pivoting it into the in figure 2 shown position.
  • the pivotability of the apron bridge 9 on the second support part 11b results from the design of the second receiving opening 29 for the second bearing section 28 of the apron bridge 9.
  • the second receiving opening 29 has an inlet slope, which in figure 2 illustrated removal position of the strap bridge 9 allows the strap bridge to be pulled out of the second receiving opening 29 .
  • a new apron bridge 9 can then be arranged again on the drafting system carriage 8c in the reverse order, the apron bridge 9 with the second bearing section 28 in the in figure 2 aligned position along the inlet slope in the second receiving opening 29 is inserted.
  • a subsequent pivoting over the in figure 3 shown intermediate position for receiving a lower apron in the in figure 4 also means that a locking pin 30 designed as the first locking means on the second support 11b, which protrudes in the direction of the inlet slope of the receiving opening 29, in the in figure 2 shown position with a trained as a second locking means elongated hole 32 on the second bearing portion 28 of the apron bridge 9 engages and thereby the apron bridge 9 in the longitudinal axis direction of the drafting roller 6 in its position determines.
  • the drafting system carriage 8c After adjusting the strap bridge 9 to the in figure 4 shown position, in which it rests on a shoulder 31 of the second support 11b, and after pushing the guide section 13 onto the base element 12, the drafting system carriage 8c can be put back into operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP20170502.7A 2019-04-26 2020-04-21 Trageinrichtung für ein riemchenstreckwerk Active EP3730682B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019110880.2A DE102019110880A1 (de) 2019-04-26 2019-04-26 Trageinrichtung für ein Riemchenstreckwerk

Publications (2)

Publication Number Publication Date
EP3730682A1 EP3730682A1 (de) 2020-10-28
EP3730682B1 true EP3730682B1 (de) 2022-11-02

Family

ID=70475956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20170502.7A Active EP3730682B1 (de) 2019-04-26 2020-04-21 Trageinrichtung für ein riemchenstreckwerk

Country Status (8)

Country Link
US (1) US20200340150A1 (zh)
EP (1) EP3730682B1 (zh)
JP (1) JP2020183606A (zh)
CN (1) CN111850751B (zh)
BR (1) BR102020008153A2 (zh)
DE (1) DE102019110880A1 (zh)
MX (1) MX2020004274A (zh)
PT (1) PT3730682T (zh)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
CN112410952A (zh) * 2020-11-11 2021-02-26 苏州基列德智能制造有限公司 一种基于高压空气的纱线纺织设备及其方法
CN114293291B (zh) * 2021-12-31 2022-12-09 安徽兰翔智能制造有限公司 一种便于更换的纺织胶圈组件
LU503151B1 (de) * 2022-12-07 2024-06-07 Saurer Spinning Solutions Gmbh & Co Kg Spannvorrichtung und Spinnmaschine
EP4389949A1 (de) * 2022-12-20 2024-06-26 Saurer Spinning Solutions GmbH & Co. KG Vorrichtung zum positionieren einer walze oder für das spannen eines riemens, streckvorrichtung, spinneinheit und spinnmaschine umfassend eine solche vorrichtung

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Also Published As

Publication number Publication date
JP2020183606A (ja) 2020-11-12
DE102019110880A1 (de) 2020-10-29
PT3730682T (pt) 2023-01-10
CN111850751A (zh) 2020-10-30
MX2020004274A (es) 2020-11-06
US20200340150A1 (en) 2020-10-29
EP3730682A1 (de) 2020-10-28
CN111850751B (zh) 2022-06-21
BR102020008153A2 (pt) 2021-03-09

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