CN1982514A - Compression roller unit for drawing device of textile machine - Google Patents

Compression roller unit for drawing device of textile machine Download PDF

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Publication number
CN1982514A
CN1982514A CNA2006101684812A CN200610168481A CN1982514A CN 1982514 A CN1982514 A CN 1982514A CN A2006101684812 A CNA2006101684812 A CN A2006101684812A CN 200610168481 A CN200610168481 A CN 200610168481A CN 1982514 A CN1982514 A CN 1982514A
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CN
China
Prior art keywords
pressure roller
compression roller
compression
roller unit
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.)
Pending
Application number
CNA2006101684812A
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Chinese (zh)
Inventor
N·不伦克
P·不兰肯霍恩
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.)
Maschinenfabrik Rieter AG
Wilhelm Stahlecker GmbH
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of CN1982514A publication Critical patent/CN1982514A/en
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/80—Rollers or roller bearings with covers; Cots or covers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A compression roller cell arranged on a loading frame of a drawing system of spinner comprises a support and two compression roller-pairs. Each of the compression roller-pair comprises two compression rollers fitted on the coaxial. Each compression roller is wraped by a belt lace. The axial distance of the roller-pair may be 20 to 35mm.

Description

The compression roller unit that is used for the drafting system of textile machinery
Technical field
Invention relates to the compression roller unit on a kind of loading frame that can be arranged in a weaving loom drafting system, and it has a bearing and two pressure rollers are right, and wherein each pressure roller is arranged in a pressure roller on the common axle to comprising two.
Background technology
By prior art DE 100 16 655 A1 are known a kind of such compression roller unit arranged.Compression roller unit is contained on the loading frame of two adjacent drafting systems, wherein always is provided with a pneumatic compression set in the exit of drafting system, and this device is with drawing-off, but still untwisted fiber strip combines perpendicular to its transporting direction and compresses.First pressure roller of compression roller unit on transporting direction and an output of the lower roll formation jaw line of drafting system, the drawing-off of fiber strip stops at this.The fiber strip of drawing-off is then through a compressional zone, in that it transports on suction socket by a ventilative conveyer belt and is combined and compresses perpendicular to transporting direction in the compressional zone.Then the compressional zone fiber strip is through another jaw line, it by second pressure roller of compression roller unit forms and is also referred to as hello to the jaw line.After feeding, make fiber strip spinning twisting to the jaw line.When just having avoided in twisting, the combination in the compressional zone produces a kind of so-called spinning triangle unfriendly by fiber strip.Therefore the yarn that is produced becomes more even, firm, and less fine hair.
The shortcoming of known compression roller unit is: pressure roller has wearing and tearing on its resilient sleeve, therefore just must reface after the short time.Especially the compressional zone that is right after on the compression roller unit forms second pressure roller of feeding to the jaw line, it is also referred to as to stopping twisting rollers, owing to fiber strip stands strong wear, this is because when fiber strip enters the jaw line in the suction socket back, always at same local this pressure roller of contact.When a kind of conversion, make fiber strip move back and forth certain amount, and this conversion uses the life-span be generally used for prolonging pressure roller in drafting system, but then can not carry out this conversion following closely on the pressure roller of compressional zone perpendicular to transporting direction.Therefore stopping that very high wearing and tearing are arranged on the twisting rollers.Be contained in addition pressure roller in the bearing of compression roller unit right reface than common pressure roller right reface much bothersome.Compression roller unit is disintegrated, make two pressure rollers, perhaps must in grinding attachment, have a special received block and be used for compression roller unit as a whole refacing respectively.
By the known a kind of pressure roller of protecting belt lace to be used for a drafting system of DE 10260025 A1 that do not belong to this type of.The protection belt lace holds pressure roller and leads by steering component.Illustrated in addition which type of performance a kind of such protection belt lace should have, for example thickness and elastic performance.Described patent has only illustrated the application on the pressure roller that the protection belt lace participates in the drafting system with in the fiber strip drawing-off time.Do not see continuing to enlarge the suggestion of using by this patent.
Summary of the invention
The task of invention is to propose a kind of compression roller unit that starts described type, and its pressure roller can not wear and tear so soon.
This task is following to be solved: each pressure roller of compression roller unit is held by a protection belt lace.
The protection belt lace forms a kind of wear protection to the pressure roller of the compression roller unit that is used for compression set and can change easily when needed.Therefore the operation of compression roller unit has been simplified.Pressure roller with especially also be to be placed on the pressure roller that being used as of compressional zone stop twisting rollers no longer directly contacting with fiber strip, therefore almost do not wear and tear.Pressure roller resilient sleeve well-regulated refaced and just becomes unnecessary.Particularly advantageously be, especially stopping on the twisting rollers, use as at the protection belt lace of type described in the DE10260025 A1.
In design of the present invention advantageously: the right distance between axles of pressure roller is 20 to 35mm, is preferably 25 to 30mm.In addition maybe advantageously: the diameter of at least one pressure roller is less than 25mm.The advantage that shortens the right distance between axles of pressure roller is: two before the compressional zone and the spacing of jaw line afterwards also shortened.Also can make suction socket reduce its length by mutual nearer jaw line, therefore can reduce the air quantity of using of compression set.Less has also reduced the energy consumption of compression set with air quantity, so just can reduce operating cost.
By the known a kind of compression set of DE 19922861 A1, before a compressional zone and respectively have a jaw line afterwards, the spacing of two jaw lines should be less than the average fiber length that is positioned at the fiber in the fiber strip (Stapell  nge) in this compression set.Yet showed already, a kind of such device can not be used in practice, this is because so little for the necessary pressure roller diameter of such jaw distance between centers of tracks, to such an extent as to very strong tendency on pressure roller, especially stop to form on the twisting rollers fiber roll around.The applicant thinks so far: the radius of curvature that roller surface is little is the reason of the high tendency of reeling.When fiber roll around the time just make fiber strip no longer by on transporting direction, transporting regularly, but driven and be wound up on the pressure roller with pressure roller.A kind of such fiber roll is around almost always causing bigger operation troubles, and this moment, adjacent compression set or drafting system also may suffer damage.
Be about 40mm for the diameter that therefore stops twisting rollers the current compression roller unit that can on market, obtain at least.So big pressure roller diameter of pressure roller has reduced the tendency of reeling very effectively, therefore can fiber roll occur around phenomenon on pressure roller hardly in actual motion.Because yet the pressure roller diameter just must make the right distance between axles of pressure roller greatly and therefore also have the spacing of two jaw lines all very big.Can not reduce the air quantity of using of suction socket length and compression set with known compression roller unit.
Test shows astoundingly: though according to the pressure roller of compression roller unit of the present invention-wherein all by the protection belt lace hold-when the pressure roller diameter reduces also and be not inclined to form consumingly fiber roll around.One is that the stop twisting rollers of 40mm there is no higher coiling tendency less than the pressure roller of 28mm than traditional diameter by the diameter that holds of protection belt lace.Therefore do not strengthen the tendency of reeling and just can realize that the right distance between axles of pressure roller is 20 to 35mm compression roller unit.
Can be advantageously: at least one protection belt lace disposes at least one steering component.Can advantageously make at least one steering component is also can be arranged on the bearing of compression roller unit by a flexible member movably with loading.Therefore can improve the guiding of protection belt lace according to the rigidity size of protection belt lace.Advantageously: steering component is arranged in being positioned on the jaw line opposite side of pressure roller.
In another kind of design maybe advantageously: at least one the protection belt lace be furnished with two steering components.Therefore protect belt lace in the position, compressional zone, to lead, thereby on suction socket, form a kind of covering.Therefore can avoid from the interference air flow at position, compressional zone and improve the compression of fiber strip.
Description of drawings
Other advantage of the present invention and characteristics are visible following to explanation that some embodiment did.Be depicted as:
Fig. 1 a: partial cut away side views of compression roller unit;
Fig. 2: in Fig. 1 on the arrow II direction according to view of compression roller unit of the present invention, wherein removed the member of adjacency for simplicity;
Fig. 3 a: view that is similar to Fig. 1 when another kind of design of the present invention.
The specific embodiment
In a weaving loom, especially in the ring spinner, Fig. 2 has only represented end regions and compression set 2 that is placed on drafting system 1 of a drafting system 1.Can see, an end that belongs to the loading frame 3 of drafting system 1 has been arranged on this end according to of the present invention, the compression roller unit 4 that also will describe in detail later on.Compression roller unit 4 supports pressure roller by two pressure rollers to 6 and 7 and one 6 and 7 bearing 5 is constituted.
Two pressure rollers are respectively applied for two settings pressure roller 10 or 11 thereon to each pressure roller in 6 and 7 to including a common axle 8 or 9.Unessentially be: pressure roller is to 6, the 7th, be designed to so-called fixed roll, this moment, pressure roller 10,11 anti-rotations ground connected and axle 8 with axle 8,9,9 rotatably supports are in 5 li of bearings, still be designed to movable roll, be contained in to axle 8,9 anti-rotations 5 li of bearings and each pressure roller 10 at this moment, 11 all rotatably support on axle 8,9.Because each pressure roller has two pressure rollers 10 or 11 to 6 or 7, therefore a compression roller unit 4 is attached troops to a unit respectively in the drafting system 1 of two adjacency.Usually on the machine longitudinal direction, be arranged side by side with many drafting systems 1 and therefore arranged many compression roller units 4. Pressure roller 10,11 has a kind of bed course of the caoutchouc elasticity that fixedly installs in a known way aptly on its excircle.
Each compression roller unit 4 comprises four protection belt laces 12 and 13 altogether in addition, and wherein each pressure roller 10 or 11 is held by a protection belt lace 12 or 13 respectively.Each protection belt lace 12,13 is furnished with a steering component 14 or 15, and it equally also is fixed on the bearing 5. Steering component 14 or 15 can be connected with bearing 5 regularly or movingly.A kind of steering component 14 of movable layout or 15 advantage are: steering component 14,15 can load by a kind of flexible member 16 or 17, and for example with the leaf spring form, and each protection belt lace 12,13 can add the pretightning force of a regulation. Flexible member 16 and 17 can certainly be designed to a kind of mode with not expression and act on helical spring or similarity piece on the steering component 14,15.1 li fiber strip 18 of each drafting system on transporting direction A, lead by a plurality of unshowned roller pairs and in known manner drawing-off to desirable fineness.Drafting system 1 is lived the position by the secondary limit of an outlet roller on transporting direction A, this roller pair also has a driven lower roll 19 except comprising described pressure roller 10.Drafting system 1 lower roll 19 in ring spinner is usually designed to bottom roll continuous on the machine longitudinal direction, all pressure rollers 10 of its corresponding all adjacent drafting system 1.Draw zone 21 at the outlet jaw line 20 place's drafting systems 1 that are made of the outlet roller pair has stopped.Being right after 20 on outlet jaw line is a drawing-off, but still untwisted fiber strip 22 also must make its real twisting now.
Will just produce a so-called spinning triangle to fiber strip 22 twisting of elongation if directly and then export jaw line 20, its planform is for the significant impact that is configured with of the yarn 23 that is produced so as everyone knows.Those fibers that are positioned at more the outside of spinning triangle often are embedded to 23 li on the yarn that produced inadequately well, to such an extent as to they are villous as flying suede and losing or make the yarn 23 of generation at least in appearance partly.This in addition edge fiber does not have much use to yarn strength.In order to get rid of this disadvantageous spinning triangle and therefore to make yarn 23 less villous and anti-tear breaking, behind draw zone 21, establish the so-called compressional zone 24 of a compression set 2, after leaving this district, make yarn 23 twisting.20 li with drawing-off in the compressional zone, but still untwisted fiber strip 22 merges perpendicular to transporting direction A, so it just no longer forms the triangle that spins for jaw line 25 back feeding of a limit compression district 20 on transporting direction A.From the yarn 23 that produced being flowed to a unshowned twisting mechanism to direction B feeding feed for jaw line 25, for example a ring ingot or an air nozzle assembly, they make the twisting of yarn 23 realization necessity.
On transporting direction A, form so-called first pressure roller at compression roller unit 4 pressure rollers 10.11 of pressure rollers are called second pressure roller accordingly.Second pressure roller 11 by compression roller unit 4 is fed to jaw line 25 in the formation that compresses at static suction channel 26 places.Because feed and to play the effect that stops to twist to jaw line 25 with respect to the twisting that will carry out subsequently, so pressure roller 11 often is also referred to as and stops to twist pressure roller.
Suction channel 26 can be designed to be in the hollow material of negative pressure and extend on many drafting systems that are arranged side by side, for example on a machine part.Each suction channel 26 is connected on the negative source of a pressure of not expressing by a negative pressure interface 27.For each fiber strip that will compress 22, suction channel 26 comprises a suction socket 28 that is arranged in substantially on the transporting direction A, and this suction socket advantageously slightly favours transporting direction A and arranges.The outline of suction channel 26 is designed for the sliding surface of circular flow, ventilative conveyer belt 29 in the position of each suction socket 28.Gas permeability practicably produces by following approach: the fine mesh shape webbing that conveyer belt 29 is designed to approach.Conveyer belt 29 transports that the fiber strip 22 that will compress passes compressional zone 21 and slides on suction channel 26.In a position that deviates from suction socket 26, lead with conveyer belt 29 tensionings and in the side by a tension element 30.The conveyer belt 29 of circular flow can oppositely touch driven lower roll 19, thereby therefore disposes the fine hair that may adhere to.
Drive pressure roller 11 and conveyer belt 29 by the pressure roller 10 that drives by lower roll 19.Bearing at the compression roller unit 4 that is designed to shell is provided with driving element for 5 li for this reason, and they are transferred to the rotation of pressure roller 10 on the pressure roller 11.Can be provided with the gear 31 or 32 that anti-rotation ground is connected with pressure roller 10 or 11 herein, these gears are supported on an idler gear 34 or the unshowned odontoid belt phase coupling connection on the axle 33 by one.For the pulling force of setting fiber strip 22 designs a kind of slight tension drawing-off (Anspannverzug) between pressure roller 10 and 11.The diameter of pressure roller 11 makes the diameter that is slightly larger than or is slightly less than pressure roller 10 in addition.As stipulating between gear 31 and 32 also that alternatively a kind of number of teeth of minimum is poor.
Compression roller unit 4 is fixed on the loading frame 3 by a springing received block 35.35 li of received blocks maintain first pressure roller to 6 the axle 8 and with this pressure roller to pressing to lower roll 19.Be transferred on the bearing 5 from loading frame 3 to the necessary power that compresses on the jaw line 25 feeding 7 for second pressure roller.Can be provided with a pressed component 36 on received block 35, it loads the supporting-point that only dots here 37 of a bearing 5 for this reason.Alternatively a loading spring 39 that acts on a supporting-point 38 can be set also on loading frame 3.
When for reduce compression set 2 to shorten suction socket 28 with air quantity the time, advantageously also reduced the spacing of pressure roller to 6 and 7 axle 8 and 9 be unlikely to too big so that use brank mouth line 20 to suction socket 28 with from suction socket 28 to the distance of feeding to jaw line 25.Especially influential to the distance D of jaw line 25 from the end of suction socket 28 to the quality of yarn 23 to feeding.The excessive scared degree of yarn that may cause of space D strengthens, and this is because each fiber of fiber strip 22 can get out again at suction socket 28 with in feeding to the position between the jaw line 25.The length of suction socket 28 advantageously is about 9 to 17mm, is preferably 10 to 14mm, and space D is 4 to 12mm, and best 4 to 7mm.The spacing of axle 8,9 is suitably 20 to 35mm, is preferably 25 to 30mm.
Can stipulate: at least one pressure roller 10 or 11 diameter are less than 28mm.For when this little diameter, especially reduce to reel tendency fiber strip 22 during the minor diameter on pressure roller 11 around pressure roller 10,11 reel, and suitable is: steering component 14 and 15 is arranged in is positioned at outlet jaw line 20 or feeds to the corresponding pressure roller 10 on jaw line 25 opposites or which side of 11.
In design of the present invention, can be provided with an additional steering component 40 at least, be used to make protection belt lace 12 or 13 that another kind of trend is arranged.Steering component 40 for example can relatively closely be fixed on the bearing 5 on the suction socket 28 between pressure roller 10 and 11 as shown in the figure.As requested then can, make protection belt lace 12 or 13 around steering component 40 guiding.For the protection belt lace 12 then with chain-dotted line represent move towards 41 the expression.Move towards 42 for protecting 13 of belt laces to provide.Make through the fiber strip 22 of compressional zone 24 air-flow by steering component 40 to separate, as same lid, work because hold the protection belt lace 12 or 13 of steering component 40 with disturbance.Therefore just can improve the compression of suction socket 28.
Fig. 2 is illustrated in the view of a compression roller unit 4 on the arrow II direction of Fig. 1.Represented herein two pressure rollers 11 as pressure roller to 7 deployment scenarios on the common axle 9.Each pressure roller 11 is held by a protection belt lace 13, and belt lace leads by a steering component 15 respectively.For protection belt lace 13 is led on to 7 axial direction at pressure roller, can be provided with combination of side guides in a not shown manner, for example two forms that are arranged in the edge (Borden) on the steering component 15.Supporting-point 38 and unshowned herein supporting-point 37 are arranged in the centre of bearing 5 in Fig. 2, so that loading force is evenly distributed on two pressure rollers 11.
Compression roller unit 4 by Fig. 3 mainly just is with the difference of version shown in Figure 1: pressure roller 10 is not connected by drive unit with 11.Do not have gear 31,32 and do not have idler gear 34 yet.Two pressure rollers 10 and 11 can be provided with freely to rotate.Be used in 2 li of the compression sets of other design by form of implementation shown in Figure 3.Therefore all the other members just needn't repeat to be illustrated all corresponding to former described form of implementation again.
Compression set 2 shown in Figure 3 is made up of a suction channel that diminishes 43 and a drivable bottom roll 44, and they are held by a ventilative conveyer belt 29 together.Suction channel 43 and lower roll 44 extend on a plurality of adjacent drafting systems 1.Conveyer belt 29 is provided with a tension element 30 again.43 li of this external suction channels are provided with a suction socket 28 that moves towards substantially for each fiber strip that will compress 22 on transporting direction A.Suction channel 43 is connected with a negative pressure source in the mode of not showing.The compression of fibrous ribbon 22 takes place resembling in principle in by form of implementation shown in Figure 1, and big difference is: feed to give jaw line 25 not between pressure roller 11 and fixing suction channel 26, but formation between the bottom roll 44 of pressure roller 11 and rotation.By the form of implementation of compression set shown in Figure 32 therefore its advantage be: conveyer belt 29 needed driving powers are much smaller for driving, and this is because do not had to the sliding friction under the jaw line 25 feeding.Yet disadvantageously: in form of implementation shown in Figure 3 from the end of suction socket 28 to feed the distance D of giving jaw line 25 also be positioned at pointed 4 to 12mm at interval on scope and so may make the validity of compression slightly poor.
Have the pressure roller of protecting belt lace 13 7 pressure roller 11 and conveyer belt separately 29 are driven by driven bottom roll 44 in by the form of implementation of Fig. 3, therefore just do not need drive unit for 4 li at compression roller unit here.

Claims (6)

1. can be arranged on the compression roller unit (4) on the loading frame (3) of drafting system (1) of weaving loom, have bearing (5) and two pressure rollers to (6,7), wherein each pressure roller is to (6; 7) comprise two and be arranged in a common axle (8; 9) pressure roller (10 on; 11), it is characterized in that each pressure roller (10; 11) by a protection belt lace (12; 13) hold.
2. by the described compression roller unit of claim 1, it is characterized in that the diameter of at least one pressure roller (10,11) is less than 28mm.
3. by claim 1 or 2 described compression roller units, it is characterized in that pressure roller is 20 to 35mm to axle (8, the 9) spacing (C) of (6,7), best 25 to 30mm.
4. by described compression roller unit one of in the claim 1 to 3, it is characterized in that at least one protection belt lace (12,13) is furnished with at least one steering component (14,15,40).
5. by the described compression roller unit of claim 4, it is characterized in that at least one steering component (14,15,40) is arranged on the bearing (5) with can passing through flexible member (16,17) loading movably and.
6. by claim 4 or 5 described compression roller units, it is characterized in that at least one protection belt lace (12,13) is furnished with two steering components (14,15,40).
CNA2006101684812A 2005-12-14 2006-12-14 Compression roller unit for drawing device of textile machine Pending CN1982514A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005061376.4 2005-12-14
DE102005061376A DE102005061376A1 (en) 2005-12-14 2005-12-14 Loading arm for textile machine drafting system includes wear-resistant apron round upper pressure rollers, especially for sliver compacting systems

Publications (1)

Publication Number Publication Date
CN1982514A true CN1982514A (en) 2007-06-20

Family

ID=38089558

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006101684812A Pending CN1982514A (en) 2005-12-14 2006-12-14 Compression roller unit for drawing device of textile machine

Country Status (3)

Country Link
CN (1) CN1982514A (en)
BR (1) BRPI0605221A (en)
DE (1) DE102005061376A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012003179A1 (en) * 2012-02-17 2013-08-22 Oerlikon Textile Components Gmbh Drafting system for warping a roving

Also Published As

Publication number Publication date
DE102005061376A1 (en) 2007-06-21
BRPI0605221A (en) 2007-10-09

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Open date: 20070620