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CN101191260A - Cover of spinning unit vacuum chamber - Google Patents

Cover of spinning unit vacuum chamber Download PDF

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Publication number
CN101191260A
CN101191260A CNA2007101961561A CN200710196156A CN101191260A CN 101191260 A CN101191260 A CN 101191260A CN A2007101961561 A CNA2007101961561 A CN A2007101961561A CN 200710196156 A CN200710196156 A CN 200710196156A CN 101191260 A CN101191260 A CN 101191260A
Authority
CN
China
Prior art keywords
lid
vacuum chamber
revolving cup
outlet
front surface
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.)
Pending
Application number
CNA2007101961561A
Other languages
Chinese (zh)
Inventor
J·斯托雷克
T·布罗泽克
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.)
Rieter Elitex AS
Rieter CZ AS
Original Assignee
Rieter Elitex AS
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 Rieter Elitex AS filed Critical Rieter Elitex AS
Publication of CN101191260A publication Critical patent/CN101191260A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H4/00Open-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
    • D01H4/04Open-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 contact of fibres with a running surface
    • D01H4/08Rotor spinning, i.e. the running surface being provided by a rotor
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H4/00Open-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
    • D01H4/04Open-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 contact of fibres with a running surface
    • D01H4/06Open-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 contact of fibres with a running surface co-operating with suction means
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H4/00Open-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
    • D01H4/38Channels for feeding fibres to the yarn forming region

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention relates the cover of the negative pressure room of a spinning unit on a rotor spinning machine. The cover includes a transferring passage for picking out fibbers. The outlet of the transferring passage is communicated with a non-hole rotor with a plane front, and the negative pressure room is connected with a central negative pressure system, simultaneously, the distance between the front (143) of the rotor (14) in the region near the outlet (1521) of transferring passage (152) for picking out fibbers and the inner front surface of the cover (15) of the negative pressure room (11) is larger than the distance between the front (143) of the rotor (14) out of the region near the outlet (1521) of transferring passage (152) for picking out fibbers and the inner front surface of the cover (15) of the negative pressure room (11).

Description

The lid of spinning unit vacuum chamber
Technical field
Technical scheme of the present invention relates to a kind of lid of the spinning unit vacuum chamber on rotor spinning machine, this lid comprises the transfer passage of being chosen fiber, the atresia revolving cup with front, plane is led in the outlet of this transfer passage, and vacuum chamber is connected to central negative pressure system.
Background technology
Free-end spinning machine is by producing yarn to the fiber spinning of choosing in the revolving cup of single operation unit.The fiber of choosing is transported into by transfer passage in the chamber of spinning unit, is provided with revolving cup in this chamber.Produce the conveying of fiber by the negative pressure effect, this negative pressure effect produces by the pressure source of the central negative pressure system of machine, wherein a zone of revolving cup is connected to this pressure source, perhaps produce this negative pressure effect, wherein produce negative pressure in atwirl revolving cup inside by this pore by being furnished with the pore that is essentially radially around the spinning hole.After leaving transfer passage, fiber is piled up by action of centrifugal force and is entered the inner lip-deep collection surface of revolving cup, and described fiber is transferred therefrom and is used for spinning.
Edge and the axial space front surface of revolving cup lid between and the central negative pressure system of machine of the inner space of atresia revolving cup by the revolving cup hole is interconnected.The revolving cup lid is the part of spinning unit, and this spinning unit combines with the body of choosing mechanism usually, and fiber transmission channel passes this body of choosing mechanism.This fiber transmission channel enters the interior zone of revolving cup through the outer wall that covers the projection that extends into the revolving cup interior zone.
The fiber of choosing except centrifugal force, also bears the constant negative pressure power in the spinning room outside revolving cup itself after leaving transfer passage.Effect by described negative pressure, be drawn out of by the slit between the negative pressure chamber cap of the spinning unit of revolving cup front and revolving cup interior zone outside near a part of fiber the transfer passage outlet, and further drawn in the filter of machine negative pressure system, the utilization of choosing fiber that is used for spinning process itself just is reduced through these steps.
Utility model design CZ 8439 U1 attempt to address the above problem, but only are partly to address this problem.Propose to be provided with a variable axial spacing between the front surface of the edge, hole of revolving cup and negative pressure chamber cap, its principle is simultaneously: enter axial spacing between the front of the hole of revolving cup on the side on oral area next door of revolving cup interior zone and lid at fiber transmission channel less than the axial spacing on the side opposite with the oral area of transfer passage.
Obviously, the big spacing on the side opposite with the transfer passage mouth applies less resistance to siphoning away gas flow in this embodiment, and therefore most of air is pulled away by this piece zone.
The downside of this solution is on the one hand when the position of revolving cup internal negative pressure power maximum value is transferred to the opposite sides of transfer passage mouth locational than lower negative pressure power absolute value at the oral area of transfer passage.Therefore just improved requirement to the output of air negative pressure power central source.To seem the quantity growth of contradiction relevant with the fiber of choosing that does not utilize in this downside.What enter the revolving cup interior zone after leaving the oral area of transfer passage chooses fiber because the centrifugal force that the quick rotation of revolving cup produces causes moving at the collection surface of the sliding surface upper edge of revolving cup one helical towards the intersection that is positioned at revolving cup inner cone and bottom thereof.Yet when the part of choosing fiber in the opposite location of transfer passage inlet, axial spacing maximum between the front surface of the edge in the hole of revolving cup and the lid of vacuum chamber, be sucked away from the interior zone of revolving cup.Because this situation, just reduced to be used for the utilization rate of choosing fiber of spinning process itself.
The purpose of the technical program is the shortcoming that remedies or reduce at least prior art.
Summary of the invention
The purpose of the technical program realizes with the lid of spinning unit vacuum chamber, its principle is that the distance in choosing fiber transmission channel outlet near zone between the inside front surface of the lid of revolving cup front and vacuum chamber is greater than the distance between the inside front surface of the lid of revolving cup front outside the outlet near zone of choosing fiber transmission channel and vacuum chamber.
The advantage of this solution has not only reduced the requirement to the output of spinning machine negative source, has also reduced to choose the loss that fiber produces owing to siphoning away outside the revolving cup interior zone.
The inside front surface of the lid of spinning unit vacuum chamber is formed by curved surface.The constant distance that is preferably between the inside front surface of choosing interior revolving cup front of fiber transmission channel exit region and negative pressure chamber cap is 1/3rd of a revolving cup girth.If minimum constant 1/3rd of the revolving cup girth that is of the distance in the zone opposite with choosing the fiber transmission channel outlet between the inside front surface of the lid of revolving cup front and vacuum chamber, this also is favourable so.
The process of designed variation distance also has active influence to mobile after choosing fiber and leaving from transfer passage between the inside front surface of the circumference of revolving cup and the lid of vacuum chamber, and has prevented undesirable fiber flyings outside the revolving cup interior zone.
If the zone that fiber transmission channel exports is chosen in being positioned at apart from starting point in the near zone of choosing the fiber transmission channel outlet between the inside front surface of the lid of revolving cup front and vacuum chamber, and this distance is further extended along the rotation direction of revolving cup, and this is just more favourable so.If the horizontal plane of the front surface of the lid of the spinning unit vacuum chamber in choosing the fiber transmission channel exit region and the transition of choosing between the horizontal plane of this front surface outside the fiber transmission channel exit region are level and smooth, this also is favourable so.
This disposing helps to choose fiber and moves towards the controlled of fibre deposition groove on the revolving cup sliding surface, thereby helps to guarantee the more high-quality of the yarn that just spinned.
When the distance between the inside front surface of the front of revolving cup in the outlet near zone of the transfer passage of choosing fiber and negative pressure chamber cap also is favourable at least 25% the time greatly than the distance between the inside front surface of the front of choosing the outer revolving cup of fiber transmission channel outlet near zone and negative pressure chamber cap.
This configuration also has following advantage: its principle is: the flat front surface of the lid of spinning unit vacuum chamber is adjacent to revolving cup, and the front surface of the lid of vacuum chamber is trapezoidal with respect to the plane in the front of revolving cup, and the mutual distance in plane of inside front surface that these two planes form the lid of the plane at least 0.5 ° angle and revolving cup front and vacuum chamber reduces towards the zone opposite with choosing the fiber transmission channel outlet gradually from the zone that is adjacent to the outlet of choosing fiber transmission channel.
Can relatively easily make flat surface, and the distance that changes between the inside front surface of the lid of the circumference in the front that gradient and direction by this flat surface can obtain revolving cup and vacuum chamber.
The enough distances that gradually change between the front of the lid of the circumference in the front of revolving cup and the vacuum chamber of spinning unit, viewpoint from the obstruction that minimizes possible irregularity with the fiber that blocks or part fiber, be favourable, the turbulent flow when also not having air to be sucked away simultaneously.
Description of drawings
The exemplary embodiments of the technical program is schematically shown in the drawings, wherein Fig. 1 according to the technical program optionally first embodiment the cross section of free-end spinning machine part spinning unit is shown, the longitudinal axis of revolving cup is passed in this cross section; And Fig. 2 illustrates the cross section of free-end spinning machine part spinning unit according to optional second embodiment of the technical program, and the longitudinal axis of revolving cup is passed in this cross section.
The specific embodiment
The spinning unit 1 of known free-end spinning machine comprises vacuum chamber 11, by bearing 12 and axle 13 revolving cup 14 is installed in this vacuum chamber.
The vacuum chamber 11 of the spinning unit 1 in the spinning unit operating position is by lid 15 sealings of vacuum chamber, and this lid is furnished with the cylindrical protrusion part 151 that extends into revolving cup 14 in the operating position.The transfer passage 152 of choosing fiber is through covering 15, and this transfer passage is used for transporting the cylindrical wall that enters revolving cup 14 and lead to projection 151 choosing fiber from choosing mechanism 2.Axially dispose the extraction funnel 153 of spun yarn in lid 15 with revolving cup 14, the extraction pipe 154 of this extraction funnel and spun yarn combines.Vacuum chamber 11 is connected with negative pressure central source 3 on being placed in machine by negative pressure passage 16.
The interior zone 141 of revolving cup is limited by the sliding surface 142 of fiber and the bottom 144 of revolving cup 14, wherein this sliding surface from the entrance cone shape in the front 143 of revolving cup 14 broaden.On the contact position of sliding surface 142 and bottom 144, implement the circumferential collection surface 145 of fiber band.
First optional embodiment according to the technical program shown in Figure 1, the lid 15 of vacuum chamber 11 inside front surface 155 is along the circumferential direction formed by contoured surface, the distance in the front 143 of its revolving cup 14 in outlet 1521 zones that are adjacent to fiber transmission channel 152 is maximum, and this distance table is shown apart from V1.Circumference along the front 143 of revolving cup 14, lid 15 inside front surface 155 moves closer to this front of opening 143 along both direction, and in the zone opposite with the outlet 1521 of fiber transmission channel 152 this inside front surface from revolving cup 14 to open front 143 nearest.When between the inside front surface 155 of the lid of the front 143 of revolving cup 14 in outlet 1521 zone at fiber transmission channel 152 and vacuum chamber apart from V1 than being favourable at least 25% the time greatly apart from V2 between the inside front surface 155 of the front 143 of the revolving cup 14 in the zone opposite and negative pressure chamber cap with the outlet 1521 of fiber transmission channel 152.
Next, being preferably between the inside front surface 155 of lid of the front 143 of revolving cups 14 in outlet 1521 zone of fiber transmission channel 152 and vacuum chamber is 1/3rd of revolving cup 14 girths apart from the consistent length of V1 in the improved form of this embodiment, and this distance originates in the zone of outlet 1521 of fiber transmission channel 152 and continue along the rotation direction of revolving cup 14.The lip-deep transition of while in the inner front wall 155 of lid 15 is level and smooth.Level and smooth transition minimizes the obstruction of the possible irregularity with the fiber that blocks or part, the generation of turbulent flow when continuous easement curve has prevented that air is sucked away simultaneously.
The zone apart from V2 between the inside front surface 155 of the front 143 of the revolving cup 14 in the zone opposite with the outlet 1521 of fiber transmission channel 152 and negative pressure chamber cap has fibre length, be at least 1/3rd of girth, and in this zone, will be more favourable during for constant.
In Fig. 2, select the inside front surface 155 of lid 15 of the vacuum chamber 11 of embodiment to be embodied as flat surface according to second of the technical program, it is trapezoidal with respect to the plane in the front 143 of revolving cup 14.In exemplary embodiments, the angle that described two planes form is 40 ', and the edge in the front 143 of revolving cup 14 far from the front surface 155 of the lid 15 of vacuum chamber 11 in the zone opposite, be minimum apart from V2 with the outlet 1521 of choosing fiber transmission channel 152, and it increases towards near the zones the outlet 1521 of choosing fiber transmission channel 152.In exemplary embodiments, be 1mm apart from the value of V2.At this value V2 and be under the front diameter value of revolving cup 14 of 35mm, the front of revolving cup 14 is being chosen in outlet 1521 near zones of fiber transmission channel 152 from the maximum second distance V1 of the front surface 155 of the lid 15 of vacuum chamber 11 be maximum, and its value is 1.40mm.
Similar with first exemplary embodiments, in outlet 1521 near zones of choosing fiber transmission channel 152 between the inside front surface 155 of the lid of the front 143 of revolving cup 14 and vacuum chamber apart from V1 than in the zone opposite, between the inside front surface 155 of the lid of the front 143 of revolving cup 14 and vacuum chamber, being favourable at least 25% the time greatly apart from V2 with the outlet 1521 of fiber transmission channel 152.
In spinning process,, choose fiber from the opening roller conveying of choosing mechanism 2 with the negative pressure effect that spinning machine negative pressure central source 3 produces by the atresia revolving cup.Fiber enters revolving cup 14 makes them be brought on the position of sliding surface 142 of revolving cup 14, in this position, there is maximum negative pressure absolute value with respect to the full-size between the inside front surface 155 of the lid of the front 143 of revolving cup 14 and vacuum chamber apart from V1.This is favourable from the viewpoint through the electricity needs of effective fibre transportation of passage 152 and negative source 3 necessity.In the space between the inner front wall 155 of the lid 15 of the front 143 of revolving cup 14 and vacuum chamber 11, with respect to the size between the inside front surface 155 of the lid of the front 143 of revolving cup 14 and vacuum chamber apart from V1, have minimum barometric gradient, and therefore the flowing velocity of sucking-off air is minimum.That moves at a relatively high speed chooses the interior zone that axially enter revolving cup 14 141 of fiber along transfer passage 152, and their Min.s ground taken away by air, and described air is sucked away from the vacuum chamber 11 outside revolving cup 14 interior zones 141.The fiber of carrying of choosing further moves on sliding surface 142 along the direction that enters the collection surface 145 that they are spinned in a spiral manner.In the circumferential area of the revolving cup 14 opposite, choose fiber more away from the space between the front surface 155 of the lid of revolving cup positive 143 and vacuum chamber on the revolving cup sliding surface 142 with the outlet 1521 of fiber transmission channel 152.Choose fiber on small scale space in this zone and the sliding surface 142 because the centrifugal force that acts on them causes having prevented to choose fiber nonconforming outflow outside revolving cup 14 inner spaces towards advancing of collection surface in this zone.
List of reference signs
1 spinning unit
11 spinning unit vacuum chambers
12 rotor bearings
13 rotor axis
14 revolving cups
141 revolving cup interior zones
142 sliding surfaces
143 revolving cup fronts
144 revolving cups bottom
145 collection surfaces
The lid of 15 vacuum chambers
151 cylindrical protrusion parts
152 fiber transmission channels
The outlet of 1521 fiber transmission channels
153 extract funnel out
154 extract pipe out
The front surface of 155 lids
16 negative pressure passages
2 choose mechanism
3 negative source
In the lid of V1 fiber transmission channel exit region interior revolving cup front and vacuum chamber
Distance between portion's front surface
V2 is revolving cup front and negative pressure in the zone opposite with the fiber transmission channel outlet
Distance between the inside front surface of chamber cap

Claims (8)

1. the lid of the spinning unit vacuum chamber on rotor spinning machine, this lid comprises the transfer passage of choosing fiber, the atresia revolving cup with flat front is led in the outlet of this transfer passage, and vacuum chamber is connected to central negative pressure system, it is characterized in that: the distance (V1) near the zone the outlet of choosing fiber transmission channel (152) (1521) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) and vacuum chamber (11) is greater than the distance (V2) between the inside front surface of the lid of the front (143) of revolving cup (14) outside near the outlet of choosing fiber transmission channel (152) (1521) regional and vacuum chamber.
2. the lid of spinning unit vacuum chamber according to claim 1, it is characterized in that: the inside front surface (155) of the lid (15) of the vacuum chamber (11) of spinning unit (1) is formed by curved surface.
3. the lid of spinning unit vacuum chamber according to claim 1 and 2 is characterized in that: constant apart from V1 in the zone of the outlet of choosing fiber transmission channel (152) (1521) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) and vacuum chamber (11) is 1/3rd of revolving cup (14) girth.
4. the lid of each described spinning unit vacuum chamber in requiring according to aforesaid right, it is characterized in that: the constant minimum of distance (V2) in the zone opposite with the outlet of choosing fiber transmission channel (152) (1521) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) and vacuum chamber (11) is 1/3rd of revolving cup (a 14) girth.
5. the lid of each described spinning unit vacuum chamber in requiring according to aforesaid right, it is characterized in that: the starting point of the distance (V1) near the zone the outlet of choosing fiber transmission channel (152) (1521) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) and vacuum chamber (11) is positioned at the zone of the outlet (1521) of choosing fiber transmission channel (152), and this distance (V1) is further extended along the rotation direction of revolving cup (14).
6. the lid of each described spinning unit vacuum chamber in requiring according to aforesaid right is characterized in that: at the horizontal plane of the front surface (155) of the lid (15) of the vacuum chamber (11) of the regional inside spinning unit (1) of the outlet of choosing fiber transmission channel (152) (1521) and the transition chosen between the horizontal plane of this front surface (155) outside outlet (1521) regional of fiber transmission channel (152) is level and smooth.
7. the lid of each described spinning unit vacuum chamber in requiring according to aforesaid right is characterized in that: the distance (V1) near the zone the outlet of choosing fiber transmission channel (152) (1521) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) and vacuum chamber (11) is than the second distance (V2) between the inside front surface (155) of the lid (15) of the front (143) of revolving cup (14) outside near the outlet (1521) of choosing fiber transmission channel (152) regional and vacuum chamber (11) greatly at least 25%.
8. the lid of spinning unit vacuum chamber according to claim 1, it is characterized in that: the front surface (155) of the contiguous revolving cup of the lid (15) of the vacuum chamber (11) of spinning unit (1) (14) is a plane surface, and the front surface (155) of the lid (15) of vacuum chamber (11) is trapezoidal with respect to the plane in the front (143) of revolving cup (14), and the mutual distance in plane of inside front surface (155) that these two planes form the lid (15) of the plane of at least 0.5 ° angle and revolving cup (14) positive (143) and vacuum chamber (11) reduces towards the zone opposite with the outlet of choosing fiber transmission channel (152) (1521) gradually from the zone that is adjacent to the outlet (1521) of choosing fiber transmission channel (152).
CNA2007101961561A 2006-11-29 2007-11-28 Cover of spinning unit vacuum chamber Pending CN101191260A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPUV200618314 2006-11-29
CZ200618314U CZ17335U1 (en) 2006-11-29 2006-11-29 Cover of spinning unit vacuum chamber

Publications (1)

Publication Number Publication Date
CN101191260A true CN101191260A (en) 2008-06-04

Family

ID=37907869

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101961561A Pending CN101191260A (en) 2006-11-29 2007-11-28 Cover of spinning unit vacuum chamber

Country Status (3)

Country Link
CN (1) CN101191260A (en)
CZ (1) CZ17335U1 (en)
DE (1) DE102007047869A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102341534A (en) * 2009-03-06 2012-02-01 欧瑞康纺织有限及两合公司 Air Rotor Spinning Device
CN103132186A (en) * 2011-11-28 2013-06-05 里特捷克有限公司 Method of preparing end of yarn for spinning on rotor spinning machines and spinning rotor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ8439U1 (en) 1999-02-04 1999-03-19 Saurer Czech A.S. Spinning unit for spindleless spinning machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102341534A (en) * 2009-03-06 2012-02-01 欧瑞康纺织有限及两合公司 Air Rotor Spinning Device
CN102341534B (en) * 2009-03-06 2014-07-09 索若德国两合股份有限公司 Open-end rotor spinning device
CN103132186A (en) * 2011-11-28 2013-06-05 里特捷克有限公司 Method of preparing end of yarn for spinning on rotor spinning machines and spinning rotor

Also Published As

Publication number Publication date
CZ17335U1 (en) 2007-03-12
DE102007047869A1 (en) 2008-07-03

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Open date: 20080604