CN102534885A - Draft device in prespinning process - Google Patents

Draft device in prespinning process Download PDF

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Publication number
CN102534885A
CN102534885A CN2011104621464A CN201110462146A CN102534885A CN 102534885 A CN102534885 A CN 102534885A CN 2011104621464 A CN2011104621464 A CN 2011104621464A CN 201110462146 A CN201110462146 A CN 201110462146A CN 102534885 A CN102534885 A CN 102534885A
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CN
China
Prior art keywords
tension
drafting system
lid
tension force
belt wheel
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Pending
Application number
CN2011104621464A
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Chinese (zh)
Inventor
河合基宏
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Toyota Industries Corp
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Toyoda Automatic Loom Works Ltd
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Publication date
Application filed by Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Publication of CN102534885A publication Critical patent/CN102534885A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H1/00Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14Details
    • D01H1/20Driving or stopping arrangements
    • D01H1/24Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/241Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles driven by belt

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

A draft device in the prespinning process includes a bottom roller whose roller gauge is adjustable, a belt for driving the bottom roller, a tension pulley that can urge the belt downward, a support member for supporting the tension pulley, an urging member that can urge the support member downward so as to provide a desired tension to the belt through the tension pulley and an urging force releasing device for releasing an urging force of the urging member. The urging force releasing device is provided above the tension pulley so as to be operable above the tension pulley.

Description

Drafting system in the fore-spinning
Technical field
Present invention relates in general to a kind of drafting system; Relate more specifically to a kind of drafting system that band drives bottom roll that has; This bottom roll has adjustable roller gauge, and this drafting system is used for fore-spinning, wherein; Many slivers are drafted and be merged into the sliver thigh by drafting system, and this drafting system for example uses in drawing frame and combing machine.
Background technology
In this drafting system, the type of the fiber that will spin according to spinning machine is regulated the jaw distance (below be called " roller gauge ") of roller.In the drafting system that bottom roll is driven by band, belt sag after, regulate roller gauge and subsequently by tension-adjusting gear with the tension adjustment of being with to desired value.When being with along with the time when elongation, the tension force of band is also regulated by tension-adjusting gear.
The open Japanese translation H05-502271 of PCT International Publication discloses the stretch drafting system of sliver of a kind of as shown in Figure 6 being used to.Drafting system has the driving pulley 71,72 that is driven by flat rubber belting 73 and turns to roller 74, and it is arranged on the traffic direction P that changes flat rubber belting 73 between driving pulley 71 and 72.The tension force of flat rubber belting 73 turns to roller 76 to regulate by another, and this turns to roller 76 to have to be fixed on this and turns to the tension rail 75 on the roller.Tension rail 75 is supported on the axle 77 pivotally.Turn to roller 76 to be promoted through tension rail 75 by spring 78, the length setting of spring 78 is a preliminary dimension, and making provides initial predetermined tension to flat rubber belting 73.Turn to the position of roller 76 to be fixed on above-mentioned state by pinching screw 79.
Reduce above-mentioned open in during the tension force of flat rubber belting 73 of drafting system; Under the state that pinching screw 79 relaxes; Make tension rail 75 overcome the motive force of spring 78 and counter clockwise direction in Fig. 6 tilts; Thereby reduce the tension force of flat rubber belting 73, and tighten pinching screw 79 then tension rail 75 is fixed in its obliquity.Tension rail 75 and pinching screw 79 be positioned at drafting system driving pulley 71,72 below.In drawing frame with above-mentioned configuration and combing machine; The position of tension rail 75 and pinching screw 79 be positioned at framework that the carriage adjustable ground of the bottom roll that supply to support drafting system installs below, the motive force that the result causes when changing roller gauge, removing spring 78 trouble that becomes.In addition, the tension force of the flat rubber belting after the adjusting 73 possibly change according to carrying out the staff who regulates.
Summary of the invention
The present invention aims to provide a kind of drafting system, allows the staff in roller gauge is regulated, easily to remove the tension force of band, and allows staff's tension force of accommodation zone suitably after having regulated roller gauge.
Drafting system in the fore-spinning comprises: bottom roll, and its roller gauge is adjustable; Band, it is used to drive said bottom roll; The tension force belt wheel, it can promote said band downwards; Supporting member, it is used to support said tension force belt wheel; Promote member, it can promote said supporting member downwards, to said band expectation tension force to be provided through said tension force belt wheel; And the motive force decontrol, it is used to remove the motive force of said promotion member.Said motive force decontrol is arranged on said tension force belt wheel top can above said tension force belt wheel, operating.
Other aspects of the present invention and advantage will become more clear from the following description that combines accompanying drawing that the principle of the invention is shown through example.
Description of drawings
The novel characteristics that is considered to of the present invention is set forth in accompanying claims particularly.The present invention and target thereof and advantage are through understanding with reference to the following present preferred embodiment and the description of accompanying drawing, wherein best:
Fig. 1 is the diagrammatic side view according to the driving mechanism that is used for the back bottom roll of the drafting system of the embodiment of the invention;
Fig. 2 is that expression is according to the drafting system of the embodiment of Fig. 1 and the diagrammatic side view of can coiler;
Fig. 3 A is the cutaway view that the line A-A along Fig. 4 of expression tension-adjusting gear cuts open;
Fig. 3 B is the lid of the tension-adjusting gear among the presentation graphs 3A and the local amplification view of spring;
Fig. 4 is the diagrammatic top view according to the driving mechanism that is used for bottom roll of the drafting system of embodiment;
Fig. 5 is the cutaway view according to the tension-adjusting gear of alternate embodiment of the present invention; And
Fig. 6 is the diagrammatic side view according to the tension-adjusting gear of prior art.
The specific embodiment
Next will drafting system according to an embodiment of the invention be described with reference to figure 1-Fig. 4.As shown in Figure 2, indicate with numeral 11 generally according to the drafting system of embodiment.From a plurality of combing head (not shown) or drafted and be transported to can coiler 13 drafting system 11 through kilting device 12 from many slivers of the bar tube supply of a plurality of drawing frame (not shown).Drafting system 11 is three roller formulas, has preceding bottom roll 14, middle bottom roller 15 and back bottom roll 16.Front upper roller 17, middle top roller 18 and back top roller 19 are separately positioned on the position corresponding with preceding bottom roll 14, middle bottom roller 15 and back bottom roll 16. Bottom roll 14,15,16 and top roller 17,18,19 have formed three pairs of rollers, promptly be respectively bottom roll and top roller preceding to, in to right with the back.With respect to the direct of travel of web F, be provided with in the front side of preceding bottom roll 14 and turn to roller 20, be used for going direction changing with the web F of the past bottom roll and 14,17 pairs of conveyings of front upper roller for moving downward.
Can coiler 13 comprises can coiler horn mouth 21, a pair of circle bar pressure roller 22 and tube gear 23.The sliver S that advances downwards from kilting device 12 passes can coiler horn mouth 21 and a pair of circle bar pressure roller 22, is again depressed, thereby is transported in the bar tube 24 by tube gear 23.
Use description to the driving mechanism of the bottom roll of drafting system 11 below.As shown in Figure 4, preceding bottom roll 14 rotatably is supported between a pair of carriage 30, and belt wheel 31 be fixedly mounted in before an end of bottom roll 14 be used for therewith rotating.Like Fig. 1 and shown in Figure 4, belt wheel 31 is through being with 35 to be driven by CD-ROM drive motor 32, with 35 being wound on belt wheel 31, being arranged on another belt wheel 34 below the belt wheel 31 and being fixed on the driving pulley 33 that is used for therewith rotating on the output shaft of CD-ROM drive motor 32.
As shown in Figure 4, middle bottom roller 15 rotatably is supported between a pair of carriage 36, and the end that belt wheel 37 is fixed on middle bottom roller 15 is used for therewith rotating.This is installed on the framework (not shown) along the adjustable mode of direction perpendicular to the axial direction of middle bottom roller 15 with the position of carriage 36 by bolt 38 carriage 36.Back bottom roll 16 rotatably is supported between a pair of carriage 39, and belt wheel 40 is fixed on afterwards, and an end of bottom roll 16 is used for therewith rotating.This is being fixed on the framework (not shown) along the adjustable position of direction of axial direction perpendicular to back bottom roll 16 by bolt 41 carriage 39.
Like Fig. 1 and shown in Figure 4, back bottom roll 16 is wound on four belt wheels 40,44,45,46, tension force belt wheel 47 and is fixed on the driving pulley 43 that is used for therewith rotating on the output shaft of CD-ROM drive motor 42 with 48 through being with 48 by CD-ROM drive motor 42 drivings.
As back bottom roll 16, middle bottom roller 15 is through being with 50 by CD-ROM drive motor 49 drivings.As shown in Figure 4, CD- ROM drive motor 42 and 49 disposes with respect to the imaginary line that extends through preceding bottom roll shown in Figure 4, middle bottom roller and back bottom roll 14,15,16 in its longitudinal center symmetrically.Middle bottom roller 15 is wound on four belt wheels 37,52,53 (belt wheel is hidden in the back of belt wheel 52,53 in the drawings), tension force belt wheel 55 and is fixed on the driving pulley 51 that is used for therewith rotating on the output shaft of CD-ROM drive motor 49 with 50 through being with 50 by CD-ROM drive motor 49 drivings.Illustration has been omitted the driving mechanism that is used for middle bottom roller 15 in Fig. 1 for ease.
Be with the 35,48, the 50th, process, and driving pulley 33,43,51 and other belt wheels (for example belt wheel 40,45,46) are to be processed by the profile of tooth belt wheel by cog belt.All belt wheels engage and are wound with cog belt with cog belt.
The tension-adjusting gear 56,57 that is used to 48,50 will be described respectively below.Because tension-adjusting gear 56 and 57 is substantially the same, so following description will concentrate on the tension-adjusting gear 56 that is used to 48.Like Fig. 1, Fig. 3 A and shown in Figure 4, tension-adjusting gear 56 comprises housing 59, supporting member 58, tension force belt wheel 47 and cylindrical guide portion 61, and wherein cylindrical guide portion 61 has minor diameter part 61A and large-diameter portion 61B.Tension force belt wheel 47 is rotatably supported by supporting member 58, and supporting member 58 is supported along the movable mode of vertical direction with respect to housing 59 with supporting member 58 by housing 59.Shown in Fig. 1 and Fig. 3 A, supporting member 58 forms L shaped, and passes its mesorelief in its underpart and become to have the elongated orifices 58A that vertically extends.Guide portion 61 is fixed on the housing 59 by bolt 60 (like Fig. 3 A and shown in Figure 4), and guide portion 61 engages with elongated orifices 58A at its minor diameter part 61A.Guide portion 61 contacts with the surface of supporting member 58 in tension force belt wheel 47 sides at its large-diameter portion 61B, and the mode that supporting member 58 slides in elongated orifices 58A with the minor diameter part 61A of guide portion 61 is by guiding vertically.
Be fixed to the upper surface of supporting member 58 in its lower end as for example helical spring 62 springs such as grade of promotion member of the present invention, be used for promoting supporting member 58 downwards.Tension-adjusting gear 56 also comprises support portion 63, and it forms outstanding from the upper water level land of housing 59, and screw hole 63A is arranged passing its mesorelief one-tenth with helical spring 62 corresponding positions.Lid 64 is screwed in the support portion 63, makes that covering 64 external screw thread 64B engages with the screw hole 63A of support portion 63.Lid 64 is formed with recess 64A therein, and recess 64A admits the top of helical spring 62 therein.In an embodiment, contacting of the upper surface of lid 64 head and support portion 63 is used for prevention and covers 64 and further be screwed into.Lid 64 upper surfaces at its head are formed with the most advanced and sophisticated pieceable recess 64C with screwdriver.Lid 64 plays a role as motive force decontrol of the present invention, is used to remove the motive force of helical spring 62.
The effect of above-mentioned drafting system 11 will be described below.In drafting system 11, preceding bottom roll 14, middle bottom roller 15 and back bottom roll 16 are driven by the speed of CD- ROM drive motor 32,49,42 with draw ratio that expectation is provided respectively.Many sliver S are transferred with a plurality of web F of the drafted one-tenth of draw ratio of expectation and from paired front roller.Subsequently, a plurality of web F pass kilting device 12 and can coiler horn mouth 21, accumulate the thigh of sliver S, and the paired circle bar pressure roller 22 through can coiler 13 is again depressed, and is transported in the bar tube 24 through tube gear 23.
The adjustable middle bottom roller of roller gauge 15 and back bottom roll 16 be respectively through being with 48,50 to be driven, and by the tension force belt wheel that is pushed down 47,55 tension force of expectation is provided with 48,50.Tension force belt wheel 47,55 is with 48,50 tension force is provided by 62 pairs of the helical springs of the supporting member 58 of downward promotion tension force belt wheel 47,55 respectively.
When regulating roller gauge, the staff is respectively through 63 removing and cover 64 from the support portion, removes the motive force of tension force belt wheel 47,55 on 48,50.Then, regulate the position of back bottom roll 16 and middle bottom roller 15 through the fixed position that changes carriage 39,36, thereby roller gauge is adjusted to desired value.The staff can be placed on through the tip with screwdriver to be covered among 64 the recess 64C and the rotation screw cutter removes and covers 64.Because the lid 64 as the motive force decontrol is positioned at tension force belt wheel 47,55 tops, so the staff can easily operate the motive force that the motive force decontrol is removed helical spring 62.
After having regulated roller gauge, the staff will be covered 64 and be screwed among the screw hole 63A of support portion 63, be prevented from further being screwed into screw hole 63A up to the external screw thread 64B of lid 64, in other words, contact with the upper surface of support portion 63 up to the head that covers 64.Under lid 64 this state, tension-adjusting gear 56,57 by be set at respectively helical spring 62 through supporting member 58 promote tension force belt wheels 47,55 with to 48,50 expectation tension force is provided state.
When being with 48 or 50 to be elongated, need with new band replacing with 48 or 50 owing to temporal variation.Substituting ground, need with the helical spring 62 of tension-adjusting gear 56 or 57 change into through supporting member 58 and tension force belt wheel 47 or 55 pairs elongated with 48 or 50 expectation tension force is provided spring.The tension-adjusting gear 56 of present embodiment or 57 allow spirals 62 with have to elongated with 48 or 50 provide be elongated with 48 or 50 before the new spring of spring constant of identical motive force change.The tension-adjusting gear 56 of present embodiment also allows to cover 64 and changes with new lid, and it is formed with for example 64A of recess, and this recess has lid that permission contacts with the upper surface of support portion 63 when be screwed into provide the degree of depth of expecting tension force to what elongated with 48 or 50.
Favourable effect below providing according to the drafting system 11 of the embodiment of the invention.
(1) in drafting system 11, adjustable middle bottom roller 15 of roller gauge and back bottom roll 16 are respectively by being with 50 and 48 to drive.The tension-adjusting gear 56,57 of drafting system 11 comprises downward promotion with 48,50 tension force belt wheel 47,55 and promote member (or helical spring 62), and this promotions member promotes supporting member 58 downwards to make the tension force belt wheels 47,55 that supported by supporting member 58 promote with 50,48 and be the tension force that expectation is provided with 50,48.Tension-adjusting gear 56,57 also comprises motive force decontrol (perhaps covering 64) respectively, and this motive force decontrol is positioned at the position of tension force belt wheel 55,47 tops and removes the motive force that promotes member (or helical spring 62).Therefore, when regulating the roller gauge of middle bottom roller 15 and back bottom roll 16, remove with 50,48 tension force and after regulating roller gauge to provide the operation of expecting tension force can have no to realize difficultly with 50,48.
(2) spring (or helical spring 62) is as promotion member of the present invention.Also can use hydraulic buffer as promoting member.Yet the use of spring can be processed owing to promoting member compactly, so more favourable than hydraulic buffer.
(3) helical spring 62 forms the part of tension-adjusting gear 56,57, when the lid 64 that is used for engaging with the upper end of helical spring 62 when helical spring 62 quilts promotes, respectively to being with 48,50 expectation tension force is provided.Lid 64 is fixed on from the support portion 63 that housing 59 is given prominence to the mode of covering 64 external screw thread 64B and engaging with the screw hole 63A of support portion 63; And when when with 48 or 50 the expectation tension force that is produced by helical spring 62 being provided, the prevention that contacts of the head of lid 84 and the upper surface of support portion 63 is covered 84 and further is screwed into.When lid 64 when housing 59 removes, 62 pairs of helical springs provide the motive force of tension force to be disengaged with 48 or 50.When lid 64 is screwed among the screw hole 63A of support portion 63 once more when the head of lid 64 contacts with the upper surface of support portion 63; Stoped lid 64 further to be screwed among the screw hole 63A; And helical spring 62 promotes supporting members 58 then, thus to 48 or 50 expectation is provided tension force.Therefore, embodiments of the invention allow the tension force of any staff's accommodation zone 48 or 50.
(4) under with 48 or 50 situation about being elongated owing to temporal variation, the tension adjustment of the band that has elongated can through change helical spring 62 or cover 64 rather than more tape swapping 48 or 50 carry out.Therefore, with new band more the situation of tape swapping compare, the cost of part replacement can be lower.
The invention is not restricted to above embodiment, but can following illustrational variety of way implement.
-as shown in Figure 5, can use the promotion member of hydraulic buffer 65 as tension-adjusting gear.Hydraulic buffer 65 is connected with switching valve 69.Switching valve 69 optionally can be connected to the fuel tank 66 to the hydraulic oil of hydraulic buffer 65 supply predetermined pressures through pipeline 67A, also can be connected to oil scupper 68 through pipeline 67B.When hydraulic buffer 65 is connected to fuel tank 66 through pipeline 67A, tension-adjusting gear 56 hydraulically with supporting member 58 be pushed to supporting member 58 through 47 pairs of tension force belt wheels with 48 expectation tension force is provided the position.On the other hand, when hydraulic buffer 65 was connected to oil scupper 68 through pipeline 67B, the hydraulic drive power of tension-adjusting gear 56 was disengaged.In this case, when the position that changes back bottom roll 16 when regulating roller gauge because there has not been the tension force to the band effect, institute's position adjustments of bottom roll 16 later on can have no to accomplish difficultly.As shown in Figure 5, switching valve 69 can be the manual operation type with action bars 69A.Switching valve 69 is disposed at the position that the staff can operate the action bars 69A of switching valve 69 in the position above the tension force belt wheel 47.Manual operating valve comprises the detent mechanism (not shown), keeps hydraulic buffer 65 to be connected with fuel tank 66 or is connected with oil scupper 68.The tension-adjusting gear 57 that is used for middle roller band 50 can have the structure identical with tension-adjusting gear shown in Figure 5 56.In addition, under with 48 or 50 situation about being elongated owing to temporal variation, through pipeline 67A be connected to fuel tank 66 hydraulic buffer 65 can with supporting member 58 be pushed to can for elongated with 48 or 50 expectation tension force is provided the position.
-switching valve 69 can be provided by electromagnetic valve.In this case, the console switch of electromagnetic valve is configured to the staff and can operates console switch in the position above the tension force belt wheel 47.
-can replace by leaf spring as the helical spring 62 that promotes member.In this case, leaf spring is fixed in support portion 63 in its lower end, and engages with lid 64 in the top.When lid 64 is screwed among the screw hole 63A when lid 64 contacts with the upper surface of supporting member 58, leaf spring provides the tension force of expectation to band.
-when promoting member and use helical spring, supporting member 58 can be fixed in helical spring lower end, can only helical spring upper end be fixed on to cover on 64.In this case, when removing when covering 64, helical spring removes with lid 64.
-lid 64 need not be formed with screw thread on the whole length of its minor diameter part.Specifically, can not forming external screw thread and this part in its most advanced and sophisticated part of vicinity of lid 64 forms with the diameter that reduces.In this case, reduced the number of times that rotatable cover 64 contacts with the upper surface of support portion 63 up to lid 64.
The shape of the recess 64C of-lid 64 needs not be fluting, can be formed with Phillips head or hexagon socket head but cover 64.
-be used for lid 64 be fixed to structure on the support portion 63 be not limited to cover 64 be screwed into screw hole 63A structure.For example, lid 64 can save external screw thread 64B and recess 64C.Replace screw hole 63A, support portion 63 can have passes the hole that confession lid 64 that its mesorelief becomes passes.In order to keep covering 64, can be arranged on and keep cover 64 holding position and releasing and cover movable retainer between 64 the releasing position.When retainer moved to the releasing position, lid 64 can remove from the hole of support portion 63.When retainer moves to the holding position, retainer will cover 64 remain on that supporting member 58 is pushed through helical spring 62 and tension force belt wheel 55,47 respectively to 50,48 expectation tension force is provided the position.
-drafting system according to the present invention is not limited to three roller formulas, but can be four roller formulas, five roller formulas or the two roller formulas be made up of front roller and rear roller.
Bottom roll 14 front sides turned to roller 20 before-drafting system 11 can save and be arranged on.
-the drafting system 11 that in fore-spinning, uses is not limited to drawing frame and combing machine, many drafting of sliver is become in the spinning machine of technology of sliver thigh but can be applied in execution, for example sliver lap machines or ribbon lap machine.
-fore-spinning can be that wide fibre bundle (or width of cloth band) drawing-off becomes the technology of sliver, for example combing.
The structure that the motive force of helical spring 62 was removed fully when-replacement removed when lid 64, lid 64 can not be removed when motive force is removed fully.In this case, motive force is removed with helical spring 62 extends to its drift before lid 64 is lax fully mode.Alternatively, when lid 64 was lax fully, helical spring 62 extended to predetermined length, and thereby provided the permission staff to have no to regulate the little tension force of roller gauge difficultly.In the present invention, this situation is included in the operation of removing the motive force that promotes member.Therefore in this case, need not remove and cover 64, just can not lose and cover 64, and can save to reinstall and cover 64 so that the trouble of motive force to be provided once more.

Claims (9)

1. the drafting system in the fore-spinning comprises:
Bottom roll, its roller gauge is adjustable;
Band, it is used to drive said bottom roll;
The tension force belt wheel, it can promote said band downwards;
Supporting member, it is used to support said tension force belt wheel;
Promote member, it can promote said supporting member downwards, to said band expectation tension force to be provided through said tension force belt wheel; And
The motive force decontrol, the motive force that it is used to remove said promotion member is characterized in that, said motive force decontrol is arranged on said tension force belt wheel top can above said tension force belt wheel, operating.
2. drafting system according to claim 1 is characterized in that, said promotion member is a spring.
3. drafting system according to claim 2 is characterized in that, this drafting system also comprises:
Tension-adjusting gear, it regulates the tension force of said band through said spring, and wherein said tension-adjusting gear comprises:
Housing, it has screw hole;
Lid; It engages with the upper end of said spring and has an external screw thread; The said external screw thread of wherein said lid is screwed in the said screw hole of said housing, and wherein said tension-adjusting gear can stop the said external screw thread of said lid further to be screwed in the said screw hole said band is provided the situation of expectation tension force by the motive force of said spring under.
4. drafting system according to claim 3 is characterized in that, said tension-adjusting gear also comprises:
The cylindrical guide portion of cylindrical shape, it is fixed on the said housing and has minor diameter part and large-diameter portion, and wherein said supporting member has:
The elongated orifices of vertically extending, wherein said guide portion engages at said minor diameter part with said elongated orifices, makes said supporting member by guiding vertically.
5. drafting system according to claim 3 is characterized in that, said lid forms said motive force decontrol and comprises:
Head, wherein when this head contacted with the upper surface of said housing, the said external screw thread of said lid was prevented from further being screwed into.
6. drafting system according to claim 5 is characterized in that, said motive force decontrol forms, and when said motive force decontrol is removed the motive force of said promotion member, no longer removes from said drafting system.
7. drafting system according to claim 1 is characterized in that, said promotion member is a hydraulic buffer.
8. drafting system according to claim 7 is characterized in that, this drafting system also comprises:
Fuel tank, the hydraulic oil of its supply predetermined pressure;
Oil scupper, it reclaims said hydraulic oil; And
Switching valve, said hydraulic buffer is connected in said fuel tank or said oil scupper through this switching valve.
9. drafting system according to claim 2 is characterized in that, this drafting system also comprises:
Tension-adjusting gear, it regulates the tension force of said band through spring, and wherein said tension-adjusting gear comprises:
Housing, it has the hole;
Lid, it engages with the upper end of said spring, and wherein said lid passes the said hole of said housing; And
Retainer; It can and remove between the releasing position of said lid and move in the holding position that keeps said lid; Wherein, when said retainer was in said holding position, said retainer remained on said band is provided expectation tension force by the motive force of said spring position with said lid.
CN2011104621464A 2010-12-03 2011-12-02 Draft device in prespinning process Pending CN102534885A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-270074 2010-12-03
JP2010270074A JP2012117181A (en) 2010-12-03 2010-12-03 Draft machine for drawing process

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Publication Number Publication Date
CN102534885A true CN102534885A (en) 2012-07-04

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CN103320908B (en) * 2012-03-21 2015-12-02 江苏凯宫机械股份有限公司 Spinning combing machine drawing-off adjusting device
CN109436949B (en) * 2018-12-12 2024-03-19 浙江太阳洲电气科技有限公司 Tension adjusting device and knitting conveying equipment
CN114393861B (en) * 2022-01-11 2023-11-10 浙江机电职业技术学院 Spinning machine tangential belt tensioning guide wheel and guide wheel processing method thereof

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US20080263831A1 (en) * 2007-04-27 2008-10-30 Truetzschler Gmbh & Co. Kg Device on a spinning preparation machine, for example a draw frame, carding machine, combing machine or the like, having a drafting system
CN101781819A (en) * 2009-12-10 2010-07-21 经纬纺织机械股份有限公司 Roller gauge adjustable drafting device for comber

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