CN100451196C

CN100451196C - Fibre condensing device for a spinning machine

Info

Publication number: CN100451196C
Application number: CNB2005100687363A
Authority: CN
Inventors: 佐野彰俊; 中野勉
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2004-06-22
Filing date: 2005-04-30
Publication date: 2009-01-14
Anticipated expiration: 2025-04-30
Also published as: EP1612309A2; JP2006009166A; DE602005016338D1; CN1712587A; EP1612309A3; EP1612309B1; JP4419703B2

Abstract

A fiber bundle collecting device (11) is provided on a downstream side of a final delivery roller pair (13) of a drafting device (12), and has a nip roller pair (16), a sucking portion (17) with guide surfaces (29b) and (30b) equipped with suction holes (29a) and (30a) in a moving direction of a fiber bundle (F), with a nipping point of the nip roller pair (16) therebetween, and a perforated belt (18) rotated while in slide contact with the guide surfaces (29b) and (30b). The perforated belt (18) is formed of a plain-woven fabric in a loop-like configuration, and a thermal fusion yarn (34) is used as a yarn forming the fabric, with the thermal fusion yarn (34) being fused at crossing portions (35). The thermal fusion yarn (34) has a core portion (34b) and a sheath portion (34a) which are both formed of polyamide.

Description

The fiber bundling apparatus of spinning machine

Technical field

The present invention relates to the fiber bundling apparatus of spinning machine, and relate to for example be disposed in drafting system (drawing-off portion) downstream of fine spining machine more precisely and be suitable for boundling by the fiber bundling apparatus of the fibre bundle of described drafting system drawing-off

Background technology

Once proposed various fiber bundling apparatus, these devices were suitable for before twisting the boundling fibre bundle of drawing-off in advance, thereby realized improving quality of yarn, for example reduced fluffing.For the major function of boundling and conveying fiber bundle is provided, used the porous belts (for example, seeing JP2000-34631A and JP2003-113540A) of no seam (closure).JP2000-34631A discloses a kind of technology, is made of the fabric (cloth) that uses diameter less than the polyamide multifilament yarns of 0.1mm according to the described conveyer belt of this technology (no seam porous belts), makes the suction air rheology even thus, thereby has improved pumping efficiency.Used plain cloth as described fabric.JP2003-113540A discloses a kind of technology, and according to this technology, described no seam porous belts (air permeable belt) is made of woven fabric.

Yet, under the situation that no seam porous belts is made of a kind of fabric, when porous belts produces the wearing and tearing end during the yarn breakage of the fabric that constitutes described porous belts or the spinning, yarn end or wearing and tearing end and the fibre bundle mat that is spun by the fracture generation, so influence the boundling of fiber unfriendly, this can cause yarn breakage and yarn qualities defective.In addition, when beginning wearing and tearing take place, will worry that porous belts enters the state that can not re-use prematurely.According to JP2000-34631A, vertical edge of conveyer belt (porous belts) can be melted; Yet the part of being concerned about most in the described announcement instruction is no more than end portion.

In addition, be under the situation about constituting at porous belts by a kind of fabric, the cross part branch that may be configured the yarn of described fabric by the fiber in the fibre bundle that spins is caught.When fiber was caught by a kind of like this cross section, the described fiber that is booked influenced fibre bundle unfriendly, then may cause yarn breakage or yarn qualities defective, so a porous belts need clearing up porous belts continually or more renew.In addition, the fiber that is booked in the yarn crossovers part can not be compressed the removings such as blowing of air easily, and their removing is time-consuming and effort.

Summary of the invention

Produced the present invention from the problems referred to above viewpoint of prior art.The beaming device that the purpose of this invention is to provide spinning machine, it prevents that cross part branch that the fiber that is spun is configured the yarn of porous belts from catching and glue thereon, improve spinning performance thereby reach, the operation of removing the fiber that adheres to porous belts is become easily, and can not reduce the boundling/conveying function of fiber bundling apparatus.

For achieving the above object, the invention provides a kind of fiber bundling apparatus of spinning machine, the fibre bundle of the drafted device of boundling institute drawing-off.Described fiber bundling apparatus is provided with: translator unit, and it is located at the right downstream of the last transmission roller of drafting system and is provided with the clamping roller; Pumping unit is at least at the upstream side place with respect to the bite of the translator unit of fibre bundle moving direction, the guiding surface with the suction socket of being provided with; And porous belts, it rotatable in case it on guiding surface, slide.Porous belts is made by textile fabric or knit goods, and the yarn of making textile fabric or knit goods is melted in the cross part office.Herein, term " flaky material " not only comprises plain cloth, TWILL CLOTH and knitted fabric, also comprise the fabric that two-layer yarn is wherein arranged, every layer is made of the yarn that is arranged in a direction, two-layer yarn is stacked, the direction of yarn arrangement separately of thread layers is intersected with each other, and yarn crossovers partly is melted.

Description of drawings

In the accompanying drawings:

Figure 1A is the schematic side view according to the cut-away section of the fiber bundling apparatus of the embodiment of the invention;

Figure 1B is the simple three-dimensional view of porous belts;

Fig. 1 C is the simple diagrammatic sketch that shows the yarn crossovers part of porous belts;

Fig. 1 D is a simple diagrammatic sketch of explaining open area ratio;

Fig. 2 shows the local diagrammatic depiction that concerns between pumping unit and the following clamping roller;

Fig. 3 A shows the simple diagrammatic sketch that concerns between the warp thread and weft yarn in the plain cloth;

Fig. 3 B shows the simple diagrammatic sketch that concerns between the warp thread and weft yarn in the TWILL CLOTH;

Fig. 4 is the schematic side view according to the fiber bundling apparatus of another embodiment.

The specific embodiment

Describe according to the embodiment of the invention below with reference to Figure 1A-3B and to be installed in fiber bundling apparatus in the fine spining machine.Figure 1A is the schematic side view of the part section of fiber bundling apparatus, and Figure 1B is the simple three-dimensional view of porous belts, and Fig. 1 C is the simple diagrammatic sketch that shows the yarn crossovers part of porous belts, and Fig. 1 D is a simple diagrammatic sketch of explaining open area ratio.Fig. 2 shows the diagrammatic depiction that tiltedly concerns between the being seen pumping unit of upside and the following clamping roller from the left side of Figure 1A, does not show top roller side part.

The structure of described fiber bundling apparatus is identical with the disclosed structure of JP2003-113540A that the previous inventor proposes basically.Shown in Figure 1A, fiber bundling apparatus 11 is arranged on as the last transmission roller of the drafting system 12 of drawing-off portion 13 downstream.Described last transmission roller is made up of with front upper roller 15 preceding bottom roll 14 13.

Fiber bundling apparatus 11 is provided with: as the clamping roller of translator unit to 16, pumping unit 17 and porous belts 18.The clamping roller comprises clamping sieve 19a and last clamping roller 20 down to 16, following clamping roller 19a is as the driving roller part of formation on the turning cylinder 19 of bottom roll 14 before being arranged to be parallel to, and last clamping roller 20 is by clamping roller 19a under being pressed towards of porous belts 18.As the front upper roller 15 of drafting system 12, supported by weight arm (not shown) by supporting member 21 for clamping roller on per two spindles 20.Supporting member 21 is made one with the supporting member of front upper roller 15.

As shown in Figure 2, the lower portion of fiber bundling apparatus 11 constitutes by using the half spindle, and described half spindle is disposed between each roller support 22 of drafting system 12, in the present embodiment, is that 4 spindles are as a unit.Be arranged in the centre position of each roller support 22 at the predetermined space place on the machine shelf longitudinal direction, arrange supporting arm 23 in following state: its close end is supported at the backbar that extends on the machine frame longitudinal direction (not shown) on the rear side of back bottom roll (not shown), and turning cylinder 19 is supported between roller support 22 and the supporting arm 23 simultaneously.

Turning cylinder 19 is made into predetermined length, and described predetermined length is the length corresponding to a plurality of spindles (being 4 spindles in the present embodiment), is loaded into end plug-in unit 25 and be installed in two bearing at end (not shown).And end plug-in unit 25 is supported in the part 25a place that cooperates combination by supporting part 22a and the 23a that is located at roller support 22 and supporting arm 23, thereby every turning cylinder 19 is rotatably supported between roller support 22 and the supporting arm 23.Supporting part 22a and 23a are configured and can support two end plug-in units 25, this feasible end plug-in unit 25 that can support on the end that is installed in turning cylinder adjacent one another are 19.

Longitudinal center place at every turning cylinder 19 is provided with gear 26, and gear 26 is as the torque drive part of transmitting the drive source moment of torsion.Gear 26 is made one with turning cylinder 19.In the present embodiment, preceding bottom roll 14 is used as the drive source of turning cylinder 19.On preceding bottom roll 14, be configured with gear part 14a (being shown among Figure 1A) with gear 26 opposite positions.Idler gear 28 is by supporting arm 27 rotatably supports, and the close end of supporting arm 27 is fixed in backbar as the situation of supporting arm 23, and idler gear 28 and gear part 14a and gear 26 engagements.In other words, the moment of torsion of preceding bottom roll 14 is passed to turning cylinder 19 by gear part 14a, idler gear 28 and gear 26.

Suction channel (not shown) is arranged to go up extension at its longitudinal direction (perpendicular to the direction on Figure 1A plane) in fine spining machine.Pumping unit 17 is provided with suction pipe 29 that parallel rotational axes 19 extends and 30 and tube connector 31, and tube connector 31 is connected in suction channel and is suitable for

suction pipe

29 and 30 provides negative pressure.Tube connector 31 is disposed in the place ahead of gear 26, so the part of tube connector 31 can be used as the lid of gear 26 and idler gear 28.Simultaneously, tube connector 31 is connected to suction channel at its close end place by bellows-shaped tube connector 32.

Suction pipe

29 and 30 first end are installed in the right-hand side and the installing hole on the left-hand side that is formed in tube connector 31 fore-ends, and the second end of

suction pipe

29 and 30 is installed in the end plug-in unit 25.

As Figure 1A and shown in Figure 2, each suction pipe 29 has guiding surface 29b, is configured with to inhale hole 29a in guiding surface 29b, inhales hole 29a and with respect to the clamping roller of the moving direction of fiber bundle F the upstream of 16 bite is being extended.Each suction pipe 30 has guiding surface 30b, is configured with the suction hole 30a that extends downstream in guiding surface 30b.Suction pipe 29 is arranged to be positioned at upstream side, and suction pipe 30 is arranged to the following clamping roller of moving direction of relative fiber bundle F to the downstream of the bite of 19a.

Shown in Figure 1A, below the suction pipe 30 and near, the distal portion of having arranged the suction nozzle 33 of discrete pneumatic means, the fibre bundle of carrying from drafting system 12 when described pneumatic means is suitable for aspirating yarn breakage.The close end of suction nozzle 33 is connected in suction channel (not shown).

Shown in Figure 1A, porous belts 18 is wound in: a part of porous belts 18 contacts with

suction pipe

29 and 30, and another part porous belts 18 contacts with following clamping roller 19a.When clamping roller 19a rotated instantly, porous belts 18 was suitable for operation and slides on guiding

surface

29a and 29b simultaneously.

Porous belts 18 is made into tabby no endless loop.In the present embodiment, by being cut into preset width, leno cellular obtains.Shown in Fig. 1 C, be used as the yarn of formation fabric with the fused yarns 34 of skin-core structure.At cross section 35 places of the yarn that constitutes fabric, the outer skin portion 34a of fused yarns 34 is melted.In the present embodiment, the fuse part 34b of fused yarns 34 and outer skin portion 34a are made by polyamide; Fuse part 34b is that the polyamide by 260 ℃ of fusing points constitutes, and constitutes and outer skin portion 34a is a polyamide by 220 ℃ of fusing points.In addition, in the present embodiment, fuse part 34b contains monofilament.

Fabric is made into the fused yarns 34 of diameter (thickness) 0.05-0.15mm.From by the pumping function aspect of the fiber bundle F spun, hope is thinner yarn; Yet this can cause the intensity of porous belts 18 relatively poor; So, hope be the size of above-mentioned scope.In addition, open area ratio is 25%-30%.Herein, term " open area ratio " is defined as (A2/A1) * 100 (%), wherein, shown in Fig. 1 D, the area portions that A1 is surrounded by the center line (with dashed lines sign) of the center line of two adjacent warp thread part 36a (with dashed lines sign) and adjacent two parallel part 36b, and the area of the dash area (opening) that A2 is surrounded by two adjacent warp part 36a and two parallel part 36b.

Porous belts 18 has anti-static function.Anti-static function obtains by porous belts 18 is applied antistatic additive.The example that the antistatic additive that is suitable for is known is a surfactant, such as cationic surfactant or amphoteric surfactant.

After constituting the cylindrical shape plain cloth of fused yarns 34, it is cut into preset width and remains on only is the temperature of outer skin portion 34a fusing, thereby might obtain the porous belts 18 that cross section 35 quilts of warp and parallel are fused.After soaking into the solution that contains surfactant, porous belts 18 is dried and stands anti-load Processing.

Secondly, the operation of the fiber bundling apparatus 11 of structure as mentioned above will be explained.

When fine spining machine was worked, 12 drawing-offs of the drafted device of fiber bundle F then guided to fiber bundling apparatus 11 from last transmission roller to 13.The clamping roller to 16 rotating speed a little more than the last roller that transmits to 13 superficial velocity, and fiber bundle F was passed the clamping roller to 16 bite under suitable tension before shifting to the downstream, be inverted simultaneously and twist.

In addition, the swabbing action of pipeline is applied on

suction pipe

29 and 30 by tube connector 31, and is configured in suction hole 29a on guiding surface 29b and the 30b and the swabbing action of 30a is applied on the fiber bundle F by porous belts 18.Fiber bundle F moves to and inhales hole 29a and the corresponding position of 30a then, aspirates simultaneously and boundling.So when comparing with the spinning machine of not installing fiber bundling apparatus 11, generation and realization that it might suppress flyings and waste cotton improve yarn qualities.

Porous belts 18 by as common fabric of the prior art (its yarn crossovers part 35 undressed fabrics) situation about constituting under, when constituting the yarn breakage of fabric, cause yarn end and the fiber bundle F mat that is spun, cause yarn breakage, yarn qualities reduction etc. thus, perhaps the fiber of the fiber bundle F of being spun is grasped in the yarn crossovers part 35, thus influence spinning unfriendly.Yet, in the porous belts 18 of present embodiment, the yarn (fused yarns 34) that constitutes fabric is fused at cross section 35 places, so, even constitute the yarn breakage of fabric etc., do not worry causing yarn end and the fiber bundle F mat that is spun or the fiber F of the fibre bundle that spun is grasped among the yarn crossovers part 35 yet.In addition, even fiber is bonded on the mesh part of weaving, knitting fabric etc., also may easily dispose them by the effect of compressed-air actuated blowing or suction air flow.

The following clamping roller 19a that is twined by porous belts 18 rotates with the velocity of rotation approximately identical with the velocity of rotation (200-300rpm) of the preceding bottom roll 14 of drafting system 12 on every side, so porous belts 18 may produce static, and the static that is produced will be recharged.Remain under the situation that may produce static when porous belts 18, fiber may be bonded on the porous belts 18.Yet because porous belts 18 has anti-static function, fiber is not easy to be bonded on the porous belts 18.

Present embodiment provides following effect:

(1) porous belts that contacts with the guiding surface 29b and the 30b of

suction pipe

29 and 30 of while in service 18 constitutes fiber bundling apparatus 11, porous belts 18 is made of sheet fabric, and material yarn in described sheet fabric (heat fused yarn 34) is fused at yarn crossovers part 35 places.So, even constitute the yarn breakage of fabric, do not worry producing yarn end yet and tangle with the fiber bundle F of being spun, perhaps the fiber of fibre bundle is grasped in the yarn crossovers part 35.The result is, it might be grasped at or be bonded at the yarn crossovers part 35 that constitutes porous belts 18 and realizes the improvement spinning performance by preventing to be spun fiber, and make and remove the work be bonded at the fiber on the porous belts 18 and become easily, and can not relate to the function of damage boundling/transmission fiber bundle F.

(2) when the yarn of making fabric (flaky material) has constituted the material of porous belts 18, used the fused yarns 34 of core-sheath structure.So making the yarn of fabric can easily fuse at cross section 35 places.

(3) both are made by polyamide for fuse of fused yarns 34 (fuse part 34b) and crust (outer skin portion 34a).So even be decreased to about 0.1mm for the thickness that reduces porous belts 18 makes the thickness of fused yarns 34, it still may guarantee desired intensity.In addition, polyamide and cotton are connatural each other, therefore may finish cotton and the spinning that contains the union twist yarn of cotton and other fiber reposefully.

(4) because porous belts 18 has anti-static function, fiber is difficult for being bonded on the porous belts 18, so, except preventing that it can also realize improving anti-adhesion effects owing to 35 fusings of yarn crossovers part are caught the effect of fiber.

(5) in the fabric of the material that constitutes porous belts 18, fused yarns 34 is used as warp 36a and parallel 36b, so, compare with one the situation that hot melt line 34 only is used as in warp and the parallel, can more easily carry out the fusion of yarn crossovers part 35.

(6) because porous belts 18 is made into the fine mesh of the fine yarn with about 0.1mm, swabbing action can be applied on the fiber bundle F effectively.

(7) because porous belts 18 is made into not have endless loop, the conveying of fiber bundle F can be realized reposefully, and the development of the fatigue that may produce in seam portion can be prevented.

(8) fabric of structure porous belts 18 is thread by filament yarn, and when comparing with the short fiber yarn of same thickness, it can improve intensity and gas permeability.

The above embodiments should not be to understand with limitation, for example, have following modification.

Porous belts 18 is not limited to plain cloth 37 (example as shown in Figure 3A); It may use the fabric with some other weaving method weaving, such as TWILL CLOTH 38 (for example shown in Fig. 3 B).

Porous belts 18 is not limited to makes a kind of textile fabric; It can make knit goods.In this case, because the elasticity of knit goods, porous belts 18 may rotate under suitable tension and need not to be provided with any stretching device.

Porous belts 18 is not limited to the no endless loop of being made by jointless textile fabric, knit goods; It can also be the tape-like woven fabric, knitted fabric etc. of the endless loop form that connects securely each other of its end.

The textile fabric of not pattern of wants porous belts 18 is made by the hot melt line fully; As an alternative, also may only be that in warp or the parallel one is made by the hot melt line.

As the method for the porous belts 18 that has anti-static function, may use the yarn of conductive fibers (conductive fiber) as structure porous belts 18.The example of conductive fibers comprises the fiber with the carbon black blending.

As the method for the porous belts 18 that has anti-static function, in its alternative method, after making porous belts 18, apply antistatic additive; Can use the yarn that is coated with antistatic additive on it to make the porous belts 18 of textile fabric or knit goods.

Fused yarns 34 is not limited to: outer skin portion 34a and fuse part 34b both are that this that made by polyamide is a kind of.For example, also can use outer skin portion 34a and fuse part 34b both to be that skin portion 34a that made by polyester or outer is made by polyester and a kind of fused yarns that fuse part 34b is made by polyamide.

The layout of turning cylinder 19 and

suction pipe

29 and 30 is not limited to 4 spindles and constitutes a unit; It also may adopt a kind of layout: wherein each spindle (for example 8 main shafts) between the every pair of adjacent roller support 22 constitutes a unit; Or a kind of layout of a unit of two spindle formations.In addition, do not need all unit always to comprise the spindle of equal number; Also may between each roller support 22, arrange the spindle (for example: 6 spindles and 2 spindles) of varying number and provide and they corresponding two kinds of unit.

Alternative suction hole

29a and 30a are arranged on upstream side and the downstream structure with respect to the bite of fiber bundle F, also can adopt and inhale the structure that hole 29a only is arranged on the upstream side of bite.In the case, substitute suction pipe 30, used pipe and bar with suction pipe 30 same external structures, inhale hole 30a, thereby may make production method and assembling identical with the foregoing description substantially but be provided with.In addition, also may remove suction pipe 30 also is wrapped in porous belts 18 between suction pipe 29 and the following clamping roller 19a.

The translator unit of fiber bundling apparatus 11 is not limited to and is provided with the clamping roller to 16 structure.For example, as shown in Figure 4, provide to have the suction pipe 40 that is roughly ovum type cross-sectional configuration, and inhaled the pre-position that hole 40a is built into suction pipe 40.Then, porous belts 18 be wrapped in slidably the excircle of suction pipe 40 and idler roller 41 around.In addition, also can reach the rotation of front upper roller 15 clamping roller 20 and drive and go up clamping roller 20, make it keep compressing to contact simultaneously, thereby drive porous belts 18 with porous belts 18 by driving belt 42.

Can also adopt a kind of structure, in described structure, have the common axis of the turning cylinder 19 of following clamping roller 19a disposed thereon as all spindles, utilize the gear row of the geared end of motor by being arranged on machine frame that it is driven, as the situation of the preceding bottom roll 14 of drafting system 12.

Also may porous belts 18 be set at upside.

The present invention not only can be used for the drafting system of fine spining machine, can also be used for the drafting system of some other form spinning machine.

By give constitute porous belts yarn with electric conductivity, can make porous belts have anti-static function, and can be made into textile fabric or knit goods thereon with the antistatic additive that applies.

Claims

1. the fiber bundling apparatus of a spinning machine (11), the fibre bundle (F) of the drafted device of this device (11) boundling (12) drawing-off comprises:

Translator unit (16) is arranged on the downstream of the last transmission roller of described drafting system (12) to (13), and is equipped with the clamping roller;

Pumping unit (17) has guiding surface (29b), and guiding surface (29b) is equiped with at the upstream side with respect to the bite of the described translator unit (16) of the moving direction of described fibre bundle (F) at least inhales hole (29a); And

Porous belts (18) is in the time of rotation and described guiding surface (29b) sliding-contact;

It is characterized in that: described porous belts (18) is made by textile fabric or knit goods, makes the yarn (34) of described textile fabric or described knit goods and locates to be fused at cross section (35).

2. the fiber bundling apparatus of spinning machine according to claim 1 (11) is characterized in that: the described fused yarns (34) of skin/core pattern structure is used as the yarn (34) of making described textile fabric or described knit goods.

3. the fiber bundling apparatus of spinning machine according to claim 1 and 2 (11) is characterized in that: described fused yarns (34) has fuse part (34b) and outer skin portion (34a), and they are all made by polyamide.

4. the fiber bundling apparatus of spinning machine according to claim 1 and 2 (11), it is characterized in that: described porous belts (18) has anti-static function.