TW201932656A - Drafting arrangement for drawing a roving yarn - Google Patents

Drafting arrangement for drawing a roving yarn Download PDF

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Publication number
TW201932656A
TW201932656A TW108117139A TW108117139A TW201932656A TW 201932656 A TW201932656 A TW 201932656A TW 108117139 A TW108117139 A TW 108117139A TW 108117139 A TW108117139 A TW 108117139A TW 201932656 A TW201932656 A TW 201932656A
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Taiwan
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pair
traction device
dust cage
traction
rollers
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TW108117139A
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Chinese (zh)
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TWI708874B (en
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猶阿辛 狄崔西
尤塞夫 溫特
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德商韶爾零件公司
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70Constructional features of drafting elements
    • D01H5/72Fibre-condensing guides
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46Loading arrangements
    • D01H5/50Loading arrangements using springs

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

Abstract

The invention relates to a drafting arrangement for drawing a roving yarn with drafting fields formed by feed, centre and withdrawal roller pairs, and a connected compression zone, wherein top delivery rollers are connected to the top withdrawal rollers by means of a cage element and the cage element is loaded by a pressure element in the direction of the bottom delivery rollers. According to the invention it is provided that the pressure element (15) is a spring element, which is configured to be length-variable in its longitudinal direction and is supported in an articulated manner, in each case, on bearing points at its two ends (32, 33).

Description

用於牽引粗紡紗的牽引裝置Traction device for pulling woollen yarn

本發明係關於一種如技術方案1前序之用於牽引粗紡紗之牽引裝置。The present invention relates to a traction device for drawing a spun yarn as in the preamble of claim 1.

用於牽引粗紡紗之牽引裝置在紡織工業中為普遍的,且用於不同紡織機上。舉例而言,環錠紡紗機之工作台配備有特定類型之牽引裝置,該牽引裝置牽引自粗紗管退繞之粗紡紗以形成具有高細度之纖維帶,接著向該纖維帶提供加撚且作為加工過的紗線捲繞至精紡管紗上。Traction devices for drawing woollen yarns are common in the textile industry and are used on different textile machines. For example, the table of the ring spinning machine is equipped with a specific type of traction device that draws the roving of the roving tube to form a fiber ribbon having a high degree of fineness, and then supplies the fiber ribbon with the addition. And as a processed yarn is wound onto the worsted tube.

此類型之牽引裝置一般具有:三個下滾筒,其沿著機器之長度間隔配置且由配置在機器末端處之驅動裝置以不同旋轉速度來驅動;以及三個各別相關聯之上滾筒,其配置於以可樞轉方式安裝之擺動托架(oscillating carrier)上。在紡紗操作期間,上滾筒以預定接觸壓力擱置於從動下滾筒上,且由從動下滾筒借助於摩擦嚙合來驅動。換言之,上滾筒與相關聯之下滾筒形成滾筒對,因為上滾筒與下滾筒之旋轉速度不同,所以該等滾筒對確保了所饋送之紗線在穿過牽引裝置時受到牽引。This type of traction device generally has three lower rollers that are spaced along the length of the machine and that are driven at different rotational speeds by a drive that is disposed at the end of the machine; and three separate associated upper rollers, It is disposed on a pivotally mounted oscillating carrier. During the spinning operation, the upper drum rests on the driven lower drum with a predetermined contact pressure and is driven by the driven lower drum by means of frictional engagement. In other words, the upper drum and the associated lower drum form a pair of rollers which, because of the different rotational speeds of the upper and lower rollers, ensure that the fed yarn is towed as it passes through the traction device.

如上文所指示,此類型之牽引裝置一般具有送紗滾筒對、中心滾筒對及抽紗滾筒對,送紗滾筒對與中心滾筒對之間的區形成所謂的預牽引區域,而中心滾筒對與抽紗滾筒對之間的區充當主牽引區域。As indicated above, this type of traction device generally has a pair of feed rollers, a pair of center rollers and a pair of draw cylinders, the zone between the pair of feed rollers and the pair of central rollers forming a so-called pre-traction zone, and the center roller pair and the drawdown The zone between the pair of rollers acts as the primary traction zone.

在牽引裝置中將所饋送之粗紡紗牽引至所要細度,且在抽紗滾筒對之夾持線處,粗紡紗作為相對寬之纖維帶(例如,牽引至多達50倍)離開該牽引裝置。如上文已指示,接著在相關工作台處藉由旋轉精紡管紗結合相關聯之鋼絲圈將反手撚應用於此相對寬之纖維帶,且在此製程中將該纖維帶撚轉以形成加工過的紗線。實務上,此情形意謂:在抽紗滾筒對之夾持線之後,形成所謂的紡紗三角形,其中將離開牽引裝置之纖維帶聚集在一起且撚轉以形成紗線結構。因為所抽取之纖維帶的寬度顯著超過加工過的紗線之直徑,所以經常並未在紡紗三角形中將所有纖維併入至紗線結構中,或未適當地將所有纖維併入至該紗線結構中,且因而纖維作為邊緣纖維自加工過的紗線突出。Feeding the fed spun yarn to the desired fineness in the traction device, and at the grip line of the draw cylinder pair, the spun yarn exits the traction device as a relatively wide fiber strip (eg, tow up to 50 times) . As indicated above, the back handcuff is then applied to the relatively wide fiber band by rotating the worsted yarn in conjunction with the associated wire loop at the associated table, and the fiber ribbon is twisted to form a process in the process. The yarn that has passed. In practice, this situation means that after the draw line is clamped to the wire, a so-called spinning triangle is formed in which the fiber strips leaving the traction device are brought together and twisted to form the yarn structure. Since the width of the extracted fiber ribbon significantly exceeds the diameter of the processed yarn, it is often not incorporated into the yarn structure in the spinning triangle, or all fibers are not properly incorporated into the yarn. In the wire structure, and thus the fibers protrude from the machined yarn as edge fibers.

為了儘可能避免產生此等邊緣纖維,在過去已結合環錠紡紗機來提議向此等紡織機之牽引裝置補充所謂的壓縮分區。換言之,輸送滾筒對連接至抽紗滾筒對,與抽紗滾筒對間隔開,上輸送滾筒對係(例如)藉由被相關聯之下輸送滾筒摩擦嚙合而旋轉。在替代具體實例中,亦可提供共同下滾筒,上抽紗滾筒及上輸送滾筒兩者作用於該共同下滾筒,或將由上抽紗滾筒驅動之齒輪或牽拉部件驅動裝置用以驅動上輸送滾筒。亦將特殊壓縮器件配置於抽紗滾筒對與輸送滾筒對之間,該壓縮器件(例如)可組態為機械壓縮機抑或以氣動方式工作。In order to avoid the creation of such edge fibers as much as possible, it has been proposed in the past to incorporate a ring spinning machine to supplement the so-called compression zone to the traction devices of such textile machines. In other words, the pair of transport rollers are coupled to the pair of draw rolls, spaced apart from the pair of draw rolls, which are rotated, for example, by frictional engagement by the associated conveyor rollers. In an alternative embodiment, a common lower drum may be provided, the upper draw cylinder and the upper transport drum acting on the common lower drum, or a gear or pull member drive driven by the upper draw cylinder for driving the upper transport drum. A special compression device is also disposed between the pair of draw cylinders and the pair of transport rollers, which can be configured, for example, as a mechanical compressor or pneumatically.

配置於壓縮分區前方之上抽紗滾筒及配置於壓縮分區下游之上部上輸送滾筒一般安裝於共同塵籠元件中,使得滾筒對之軸桿被導引成彼此平行。換言之,塵籠元件與在上抽紗滾筒之軸桿上於橫向上緊鄰軸桿之鞍形件的其第一導軸器件嚙合,該上抽紗滾筒又配置於擺動托架之所謂的輸送連桿中且藉由鞍座彈簧固持。一般藉由彈簧元件對抽紗連桿加載,使得上抽紗滾筒以所界定接觸壓力擱置於相關聯之下抽紗滾筒上。在紡紗操作期間,上輸送滾筒亦必須以特定加載力擱置於下輸送滾筒上,此係因為僅可按此方式來確保亦在壓縮分區之區中適當地運送經壓縮纖維。已知用於產生此加載力之各種方法及器件,此加載力對於壓縮分區之適當操作為絕對必要的。The transport rollers disposed above the front of the compression zone and disposed above the downstream of the compression zone are typically mounted in a common dust cage element such that the roller pairs are guided parallel to each other. In other words, the dust cage element engages with its first guide shaft means on the shaft of the upper draw cylinder in the transverse direction of the saddle of the shaft, which is in turn arranged in the so-called transport link of the swing bracket And held by the saddle spring. The draw link is typically loaded by a spring element such that the upper draw cylinder rests on the associated draw cylinder at a defined contact pressure. During the spinning operation, the upper transport drum must also rest on the lower transport drum with a specific loading force, since it is only possible in this way to ensure that the compressed fibers are also properly transported in the region of the compression zone. Various methods and devices are known for generating this loading force, which is absolutely necessary for proper operation of the compression zone.

舉例而言,自實踐已知提供了具有整體鑄造面之塵籠元件,該塵籠元件經配置及組態使得塵籠元件在裝設狀態下且在擺動托架關閉時支撐於輸送連桿之下側上。換言之,由抽紗連桿引入之加載力借助於整體鑄造面而傳送至塵籠元件上,且根據各別間隔而分散於上抽紗滾筒及上輸送滾筒上。For example, it has been known from practice to provide a dust cage element having an integral casting surface that is configured and configured such that the dust cage element is supported by the conveyor link in the installed state and when the swing bracket is closed. On the lower side. In other words, the loading force introduced by the draw link is transmitted to the dust cage element by means of the integral casting surface, and is dispersed on the upper draw cylinder and the upper transport drum according to the respective intervals.

上輸送滾筒之此已知類型的連接之缺陷尤其在於:常常使上抽紗滾筒略微提離塵籠元件中之其導引及收納器件,從而導致以下事實:上抽紗滾筒不再被精確地導引,此情形基本上導致紗線品質之惡化。A disadvantage of this known type of connection of the upper transport roller is, in particular, that the upper draw cylinder is often slightly lifted away from its guiding and receiving means in the dust cage element, resulting in the fact that the upper draw cylinder is no longer precisely guided This situation basically leads to deterioration of yarn quality.

舉例而言,藉由顯著增加抽紗連桿之最大加載力來對已知牽引裝置進行整修不會提供任何持久的成功,此係因為加載力之此類型的顯著增加不僅導致上滾筒處之沈降效應(其亦損害可達成之紗線品質),而且使得更難以進行對上滾筒對之最佳加載力的規定調整。For example, refurbishing a known traction device by significantly increasing the maximum loading force of the draw link does not provide any lasting success, as this type of loading force significantly increases not only the settling effect at the upper drum. (It also impairs the achievable yarn quality) and makes it more difficult to make the specified adjustments to the optimum loading force of the upper drum pair.

為了消除上抽紗滾筒在塵籠元件中之導引減少的問題,因此已在過去提議另外藉由額外片簧來對塵籠元件加載。此類型之額外片簧在此處可(例如)借助於螺桿連接件繫固於牽引裝置之擺動托架上,如(例如)DE 100 05 387 A1中所描述,抑或可固定地配置於塵籠元件上,如自DE 10 2009 050 581 A1已知。In order to eliminate the problem of reduced guiding of the upper draw cylinder in the dust cage element, it has been proposed in the past to additionally load the dust cage element by means of an additional leaf spring. An additional leaf spring of this type can be fastened here, for example, by means of a screw connection to the pivoting bracket of the traction device, as described, for example, in DE 100 05 387 A1, or can be fixedly arranged in a dust cage. On the component, it is known from DE 10 2009 050 581 A1.

然而,實務上已發現,當在紡紗操作期間上面擱置有上輸送滾筒之下輸送滾筒不具有精確同心性時,此等已知器件亦為非常不利的。在諸如此情形之狀況下,塵籠元件(其中安裝有上輸送滾筒)繞上抽紗滾筒進行樞轉移動,從而導致以下事實:(例如)當負載彈簧繫固於擺動托架上時在片簧與塵籠元件之間發生相對移動。此處在片簧與塵籠元件之間發生的摩擦導致反轉矩,該反轉矩在塵籠元件向下移動期間導致在每一狀況下存在之加載力減弱,且在塵籠元件向上移動時導致該加載力增強。換言之,在此等已知器件中,當下輸送滾筒之同心性不精確時,在紡紗製程期間由上輸送滾筒傳送之加載力並非恆定的而是變化的,此損害紗線品質。However, it has been found in practice that such known devices are also highly disadvantageous when the transport rollers underlying the upper transport roller are not accurately concentric during the spinning operation. In the case of such a situation, the dust cage member in which the upper transport roller is mounted is pivotally moved around the draw cylinder, resulting in the fact that, for example, the leaf spring is attached to the swing bracket when the load spring is fastened to the swing bracket Relative movement with the dust cage element. The friction that occurs between the leaf spring and the dust cage element here results in a counter torque that causes the loading force to be weakened in each condition during the downward movement of the dust cage element and moves up the dust cage element This causes the loading force to increase. In other words, in such known devices, when the concentricity of the lower transport roller is inaccurate, the loading force transmitted by the upper transport roller during the spinning process is not constant but varies, which impairs the yarn quality.

根據前述先前技術,本發明係基於開發一種牽引裝置之目標,該牽引裝置用於牽引粗紡紗,使得在紡紗操作期間,可在包括於壓縮分區中之上輸送滾筒中始終確保實際上恆定之加載力,該等上輸送滾筒安裝於塵籠元件中,一壓力元件又作用於該塵籠元件。According to the preceding prior art, the present invention is based on the object of developing a traction device for drawing a spun yarn such that during the spinning operation, it is always ensured to be substantially constant in the transport drum included in the compression zone. The loading force, the upper conveying drum is mounted in the dust cage element, and a pressure element acts on the dust cage element.

根據本發明,該目標係藉由一種具有技術方案1中所描述之特徵的牽引裝置來達成。According to the invention, this object is achieved by a traction device having the features described in claim 1.

本發明之有利組態為附屬技術方案(sub-claims)之標的物。Advantageous configurations of the invention are the subject matter of the sub-claims.

根據本發明之組態(在該組態中,壓力元件為彈簧元件,該彈簧元件經組態以便在其縱向上為長度可變的且在每一狀況下以鉸接方式支撐於其兩個末端處之承載點處)不僅具有如下優點:相對大之加載力不僅可按簡單方式藉由此類型之具體實例傳送至塵籠元件上,尤其傳送至安裝於塵籠元件中之上輸送滾筒上,而且壓力元件之此組態及配置亦可確保:即使上輸送滾筒不具有精確同心性,仍不會出現如迄今在先前技術中常見之任何有害的負載波動。借助於此類型之長度可變壓力元件,可靠地防止了在操作牽引裝置期間在壓力元件與塵籠元件之間發生有害的相對移動,該長度可變壓力元件補償其承載點之可能角度及/或位置改變而不會出現問題。換言之,藉由使用具有根據本發明之組態及配置的壓力元件,可按相對簡單之方式確保在操作牽引裝置期間不會產生有害的靜摩擦力。Configuration according to the invention (in this configuration, the pressure element is a spring element which is configured to be variable in length in its longitudinal direction and is hingedly supported at its two ends in each case) Not only has the advantage that the relatively large loading force can be transmitted to the dust cage element in a simple manner by means of a specific example of this type, in particular to the transport drum mounted on the dust cage element, Moreover, this configuration and configuration of the pressure element also ensures that even if the upper conveyor roller does not have precise concentricity, any detrimental load fluctuations as is conventional in the prior art will not occur. By means of a variable length pressure element of this type, a detrimental relative movement between the pressure element and the dust cage element during operation of the traction device is reliably prevented, the variable length pressure element compensating for the possible angle of its bearing point and/or Or the location changes without problems. In other words, by using a pressure element having a configuration and configuration according to the invention, it is possible in a relatively simple manner to ensure that no harmful static friction forces are generated during operation of the traction device.

根據技術方案2,在有利具體實例中提供以下情形:壓力元件經組態為螺旋壓縮彈簧,該螺旋壓縮彈簧一方面以鉸接方式連接至牽引裝置之擺動托架,且另一方面以鉸接方式連接至塵籠元件。在機械工程中,此類型之螺旋壓縮彈簧已長期為可靠的大量生產之零件,該等零件可按實際上所有大小及強度來經濟地獲取,且因為其結構組態而亦補償橫向壓力分量而不會出現問題,換言之,實際上無摩擦。According to the second aspect, in an advantageous embodiment, the pressure element is configured as a helical compression spring, which is connected on the one hand to the pivoting bracket of the traction device and, on the other hand, to the articulated connection. To the dust cage components. In mechanical engineering, this type of helical compression spring has long been a reliable mass-produced part that can be economically obtained in virtually all sizes and strengths, and also compensates for lateral pressure components due to its structural configuration. There won't be problems, in other words, there is virtually no friction.

藉由使用此類型之螺旋壓縮彈簧,因此可按相對可靠且經濟之方式確保:在實際上所有條件下,在紡紗操作期間在牽引裝置之壓縮分區之區中始終提供在上輸送滾筒處所需之加載力的相對恆定引入,換言之,甚至在運轉同心性並非很高之下輸送滾筒的情況下亦如此。By using a helical compression spring of this type, it is thus ensured in a relatively reliable and economical manner that, under virtually all conditions, the upper conveyor drum is always provided in the region of the compression zone of the traction device during the spinning operation. A relatively constant introduction of the required loading force, in other words, even in the case of a conveyor roller where the operational concentricity is not very high.

如已在技術方案3中描述,在較佳組態中提供以下情形:在用於上輸送滾筒對之軸桿的導引及收納器件之區中,塵籠元件具有連接器件,該連接器件配備有用於支撐及調整螺旋壓縮彈簧之導引銷。具有導引銷之此類型的連接器件容易允許精確地遵守由螺旋壓縮彈簧引入之加載力的加載方向。連接器件在用於上輸送滾筒對之軸桿的導引及收納器件之區中的配置亦確保:主要將加載力直接傳送至上輸送滾筒對上。配備有此類型之連接器件的塵籠元件亦為經濟的可靠組件,其確保長時期內之適當紡紗操作。As already described in the third aspect of the invention, in the preferred configuration, the following situation is provided: in the region for guiding and accommodating the device for the shaft of the upper transport roller pair, the dust cage member has a connecting device, and the connecting device is equipped There are guide pins for supporting and adjusting the helical compression spring. This type of connecting device with a guide pin is easy to allow precise compliance with the loading direction of the loading force introduced by the helical compression spring. The arrangement of the connecting means in the region for guiding and accommodating the shaft of the upper transport roller pair also ensures that the loading force is mainly transmitted directly to the upper transport roller pair. Dust cage components equipped with this type of connecting device are also economical and reliable components that ensure proper spinning operations over a long period of time.

根據技術方案4,亦提供以下情形:用於螺旋壓縮彈簧之收納器件配置於擺動托架上,該收納器件係借助於軸桿而繫固至擺動托架。歸功於繫固至擺動托架之用於螺旋壓縮彈簧的收納器件,不僅容易地確保螺旋彈簧可始終適當地固定至擺動托架,而且收納器件亦協同配置於塵籠元件上之連接器件來確保螺旋壓縮彈簧在紡紗操作期間始終如所指定般定向。此情形意謂:因為所裝設螺旋壓縮彈簧之適當定向,可靠地防止了在塵籠元件與螺旋壓縮彈簧之間出現靜摩擦,使得在忽略螺旋壓縮彈簧之內部摩擦力時,有可能將由螺旋壓縮彈簧預定之加載力實際上無摩擦地傳送至上輸送滾筒上。According to the fourth aspect of the invention, there is also provided a case where the accommodating means for the helical compression spring is disposed on the swing bracket, and the accommodating means is fastened to the swing bracket by means of the shaft. Thanks to the accommodating device for the helical compression spring fastened to the oscillating bracket, it is not only easy to ensure that the coil spring can be properly fixed to the oscillating bracket at all times, and the accommodating device is also cooperatively arranged with the connecting device on the dust cage member to ensure The helical compression spring is always oriented as specified during the spinning operation. This situation means that due to the proper orientation of the mounted helical compression spring, static friction between the dust cage element and the helical compression spring is reliably prevented, so that it is possible to compress by the spiral when ignoring the internal friction of the helical compression spring. The predetermined loading force of the spring is actually transmitted to the upper conveying drum without friction.

單一圖展示用於牽引粗紡紗之牽引裝置1,壓縮分區10配置於牽引裝置1之牽引分區30下游,該壓縮分區之安裝於塵籠元件25中的上輸送滾筒對11o係由壓力元件來加載,在有利具體實例中,該壓力元件經組態為螺旋壓縮彈簧15。A single figure shows a traction device 1 for pulling a spun yarn, the compression zone 10 being arranged downstream of a traction zone 30 of the traction device 1, the upper conveyor roller pair 11o of the compression zone mounted in the dust cage element 25 being by a pressure element Loading, in an advantageous embodiment, the pressure element is configured as a helical compression spring 15.

如已知的,所展示之牽引裝置1具有送紗滾筒對2、中心滾筒對3及抽紗滾筒對4,該等滾筒對2、3、4在每一狀況下係由下滾筒及相關聯之上滾筒形成。下滾筒2u、3u、4u係借助於沖孔(圖中未示)安裝於環錠紡紗機之機器框架上,而上滾筒2o、3o、4o在每一狀況下係藉由所謂的連桿而連接至擺動托架5,下滾筒2u、3u、4u大體上係沿著機器之長度配置且(例如)由配置於機器末端處之驅動裝置及對應齒輪裝置以不同旋轉速度來驅動,上滾筒2o、3o、4o在紡紗操作期間係藉由被下滾筒摩擦嚙合來驅動,擺動托架5又藉由支撐件28固定至固持桿12,該固持桿12繫固至機器框架。As is known, the traction device 1 is shown with a pair of feed rollers 2, a pair of central rollers 3 and a pair of draw cylinders 4, which in each case are under the lower drum and associated The upper drum is formed. The lower rollers 2u, 3u, 4u are mounted on the machine frame of the ring spinning machine by means of punching holes (not shown), and the upper rollers 2o, 3o, 4o are in each case by a so-called connecting rod And connected to the swing bracket 5, the lower drums 2u, 3u, 4u are arranged substantially along the length of the machine and, for example, driven by the drive device and the corresponding gear device disposed at the end of the machine at different rotational speeds, the upper drum 2o, 3o, 4o are driven by frictional engagement by the lower drum during the spinning operation, and the swinging bracket 5 is in turn fixed to the holding rod 12 by the support member 28, which is fastened to the machine frame.

在每一狀況下,眾多牽引裝置1之擺動托架5可借助於操縱桿6而定位於「折起牽引裝置」或「裝載牽引裝置」之位置,在上滾筒擱置於下滾筒上而操縱桿6不處於其關閉位置時調整到「卸載牽引裝置」之第三位置。In each case, the swinging bracket 5 of the plurality of traction devices 1 can be positioned at the position of the "folding traction device" or the "loading traction device" by means of the operating lever 6, and the upper roller rests on the lower roller and the joystick 6 Adjust to the third position of the "unloading traction device" when not in its closed position.

此類型之牽引裝置1具有在送紗滾筒對2與抽紗滾筒對4之間的牽引分區30,在該牽引分區30中較佳將所饋送之粗紡紗26牽引至其饋送長度之多達50倍。在此狀況下,將牽引分區30分成以下兩者:預牽引區域7,其位於送紗滾筒對2與中心滾筒對3之間;及主牽引區域8,其位於中心滾筒對3與抽紗滾筒對4之間。位於抽紗滾筒對4與輸送滾筒對11之間的壓縮分區10鄰接牽引分區30。This type of traction device 1 has a traction zone 30 between the pair of feed rollers 2 and the pair of draw cylinders 4, in which the fed roving 26 is preferably drawn to up to 50 of its feed length Times. In this case, the traction zone 30 is divided into two: a pre-traction zone 7 between the pair of feed rollers 2 and the pair of central rollers 3; and a main traction zone 8 located between the pair of central rollers 3 and the pair of draw cylinders Between 4. A compression zone 10 between the pair of draw cylinders 4 and the pair of conveyor rollers 11 abuts the traction zone 30.

如自圖中可見,上抽紗滾筒對4o係藉由彈簧負載式輸送連桿9連接至牽引裝置1之擺動托架5。換言之,抽紗輸送滾筒對4o之軸桿13係藉由其鞍形件固定於抽紗連桿9之收納件中,較佳藉由彈簧元件來緊固。As can be seen from the figure, the upper draw cylinder pair 4o is connected to the swing bracket 5 of the traction device 1 by a spring loaded conveyor link 9. In other words, the shaft 13 of the draw conveyor roller pair 4o is fixed to the accommodating member of the draw link 9 by its saddle member, preferably by a spring member.

塵籠元件25緊鄰軸桿13之鞍形件,安裝有第一導引及收納器件29,該第一導引及收納器件29之內徑略大於軸桿13之直徑,除此第一導引及收納器件29外,該塵籠元件25亦具有用於上輸送滾筒對11o之軸桿17的第二導引及收納器件31及連接器件14,以支撐及調整較佳組態為螺旋壓縮彈簧之壓力元件15。連接器件14在此處配置於用於上輸送滾筒對11o之軸桿17的第二導引及收納器件31上方之區中,且具有用於鉸接式定位螺旋壓縮彈簧15的導引銷16。螺旋壓縮彈簧15亦以鉸接方式連接至收納器件18,該收納器件18連接至牽引裝置1之擺動托架5。此情形意謂:在已裝配狀態下,藉由連接器件14及收納器件18對螺旋壓縮彈簧15進行定向,使得在螺旋壓縮彈簧15與塵籠元件25之間不提供可導致靜摩擦之相對移動。The dust cage element 25 is adjacent to the saddle of the shaft 13, and the first guiding and accommodating device 29 is mounted. The inner diameter of the first guiding and accommodating device 29 is slightly larger than the diameter of the shaft 13, except for the first guide In addition to the receiving device 29, the dust cage member 25 also has a second guiding and receiving device 31 and a connecting device 14 for the shaft 17 of the upper conveying roller pair 11o for supporting and adjusting a configuration as a helical compression spring. Pressure element 15. The connecting means 14 is here arranged in the region above the second guiding and receiving means 31 for the shaft 17 of the upper conveying roller pair 11o and has a guide pin 16 for the articulated positioning of the helical compression spring 15. The helical compression spring 15 is also hingedly connected to the receiving device 18, which is connected to the pivoting bracket 5 of the traction device 1. This situation means that in the assembled state, the helical compression spring 15 is oriented by the connecting means 14 and the receiving means 18 such that no relative movement between the helical compression spring 15 and the dust cage element 25 is provided which can result in static friction.

將螺旋壓縮彈簧15用作壓力元件因此導致以下事實:即使在下輸送滾筒對11u略微非同心地運轉(在實務上並非總能避免此情況)時,螺旋壓縮彈簧15亦可確保預定加載力至塵籠元件25及因此至上輸送滾筒對11o之實際上無滯後的傳送。The use of the helical compression spring 15 as a pressure element thus leads to the fact that the helical compression spring 15 ensures a predetermined loading force to the dust even when the lower conveyor roller pair 11u is operated slightly non-concentrically (which is not always avoided in practice). The cage element 25 and thus the upper transport roller pair 11o are virtually hysteresis-free.

換言之,由該建構提供之此類型之螺旋壓縮彈簧15的橫向活動性自動補償了塵籠元件25之可能樞轉移動,且允許塵籠元件25在實際上無靜摩擦之情況下繞上抽紗滾筒對4o之軸桿13移動。In other words, the lateral mobility of the helical compression spring 15 of this type provided by the construction automatically compensates for possible pivotal movement of the dust cage element 25 and allows the dust cage element 25 to wrap around the draw cylinder pair without substantial static friction. The 4o shaft 13 moves.

1‧‧‧牽引裝置1‧‧‧ traction device

2‧‧‧送紗滾筒對 2‧‧‧Feed roller pair

2o‧‧‧上滾筒 2o‧‧‧Upper roller

2u‧‧‧下滾筒 2u‧‧‧ lower roller

3‧‧‧中心滾筒對 3‧‧‧Center roller pair

3o‧‧‧上滾筒 3o‧‧‧Upper roller

3u‧‧‧下滾筒 3u‧‧‧ lower roller

4‧‧‧抽紗滾筒對 4‧‧‧Drawing roller pair

4o‧‧‧上滾筒 4o‧‧‧Upper roller

4u‧‧‧下滾筒 4u‧‧‧ lower roller

5‧‧‧擺動托架 5‧‧‧Swing bracket

6‧‧‧操縱桿 6‧‧‧Joystick

7‧‧‧預牽引區域 7‧‧‧Pre-traction area

8‧‧‧主牽引區域 8‧‧‧Main traction area

9‧‧‧抽紗連桿 9‧‧‧Extraction link

10‧‧‧壓縮分區 10‧‧‧Compressed partition

11‧‧‧輸送滾筒對 11‧‧‧Transport roller pair

11o‧‧‧上輸送滾筒對 11o‧‧‧Upper roller pair

11u‧‧‧下輸送滾筒對 11u‧‧‧Drawing roller pair

12‧‧‧固持桿 12‧‧‧ holding rod

13‧‧‧軸桿 13‧‧‧ shaft

14‧‧‧連接器件 14‧‧‧Connecting device

15‧‧‧螺旋壓縮彈簧 15‧‧‧Helical compression spring

16‧‧‧導引銷 16‧‧‧ Guide pin

17‧‧‧軸桿 17‧‧‧ shaft

18‧‧‧收納器件 18‧‧‧Storage device

19‧‧‧軸桿 19‧‧‧ shaft

25‧‧‧塵籠元件 25‧‧‧Dust cage components

26‧‧‧粗紡紗 26‧‧‧ roving

28‧‧‧支撐件 28‧‧‧Support

29‧‧‧第一導引及收納器件 29‧‧‧First guiding and receiving device

30‧‧‧牽引分區 30‧‧‧ traction zone

31‧‧‧第二導引及收納器件 31‧‧‧Second guiding and receiving device

32‧‧‧末端 End of 32‧‧‧

33‧‧‧末端 End of 33‧‧‧

下文將借助於圖式中所展示之具體實例來更詳細地描述本發明。The invention will be described in more detail hereinafter with the aid of specific examples shown in the drawings.

Claims (3)

一種用於牽引一粗紡紗之牽引裝置,其具有藉由送紗滾筒對、中心滾筒對及抽紗滾筒對形成之牽引區域及一連接之壓縮分區,其中上輸送滾筒係借助於一塵籠元件連接至上抽紗滾筒,且該塵籠元件係藉由一壓力元件在下輸送滾筒之方向上進行加載,該牽引裝置之特徵在於:該壓力元件(15)為一彈簧元件,該彈簧元件經組態以在其縱向上為長度可變的且在每一狀況下以一鉸接方式支撐於其兩個末端(32、33)處之承載點上。A traction device for pulling a roving yarn having a traction zone formed by a pair of feed rollers, a pair of center rollers and a pair of draw cylinders, and a connected compression zone, wherein the upper conveyor roller is by means of a dust cage component Connected to the upper draw cylinder, and the dust cage element is loaded by a pressure element in the direction of the lower transport drum, the traction device being characterized in that the pressure element (15) is a spring element, the spring element being configured It is variable in length in its longitudinal direction and is supported in an articulated manner at the bearing points at its two ends (32, 33) in each case. 如申請專利範圍第1項之牽引裝置,其中:該壓力元件經組態為一螺旋壓縮彈簧(15),且一方面以一鉸接方式連接至該牽引裝置(1)之一擺動托架(5),且另一方面以一鉸接方式連接至該塵籠元件(25)。The traction device of claim 1, wherein the pressure element is configured as a helical compression spring (15) and is connected to the swinging bracket (5) of the traction device (1) in an articulated manner. And on the other hand connected to the dust cage element (25) in an articulated manner. 如申請專利範圍第2項之牽引裝置,其中:用於該螺旋壓縮彈簧(15)之一收納器件(18)係借助於一軸桿(19)配置於該擺動托架(5)上。A traction device according to claim 2, wherein: the receiving device (18) for the helical compression spring (15) is disposed on the swing bracket (5) by means of a shaft (19).
TW108117139A 2012-02-17 2013-02-08 Drafting arrangement for drawing a roving yarn TWI708874B (en)

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TWI668343B (en) 2019-08-11
JP2013170346A (en) 2013-09-02
CN103255513A (en) 2013-08-21
EP2628828B1 (en) 2018-07-18
RU2631920C2 (en) 2017-09-28
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EP2628828A1 (en) 2013-08-21
DE102012003179A1 (en) 2013-08-22

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