WO2015067112A1 - 导纱器及纱线卷绕机 - Google Patents

导纱器及纱线卷绕机 Download PDF

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Publication number
WO2015067112A1
WO2015067112A1 PCT/CN2014/088185 CN2014088185W WO2015067112A1 WO 2015067112 A1 WO2015067112 A1 WO 2015067112A1 CN 2014088185 W CN2014088185 W CN 2014088185W WO 2015067112 A1 WO2015067112 A1 WO 2015067112A1
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WO
WIPO (PCT)
Prior art keywords
linear guide
yarn
connecting line
energy storage
sliding member
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.)
Ceased
Application number
PCT/CN2014/088185
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English (en)
French (fr)
Inventor
杨东红
佟庆波
陈文哲
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.)
Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2015067112A1 publication Critical patent/WO2015067112A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/30—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with fixed stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/74—Driving arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to the field of textile machinery, in particular to a yarn guide and a yarn winding machine.
  • the yarn produced or processed by the textile machine is wound by a yarn winding machine to form a package.
  • a yarn is traversed on a rotating winding bobbin to form a package having cross-wound yarn.
  • the winding bobbin is driven by a drive motor to rotate, and during the rotation, the yarn is reciprocally wound around the winding bobbin.
  • a yarn guide is provided below the winding bobbin, the yarn guide can be traversed in the axial direction of the winding bobbin, and the yarn is passed through the yarn guide and wound around the winding bobbin. That is, while the winding bobbin is rotating, the yarn guide pulls the yarn laterally, and the yarn is wound around the winding bobbin in an obtuse angle with the axial direction of the winding bobbin.
  • the lateral movement of the yarn guide is a reciprocating process.
  • the yarn can be traversed at a constant speed until the second end of the winding bobbin in the axial direction is reversed and a reverse direction is obtained.
  • the acceleration in the opposite direction, traverses, moves toward the first end of the winding bobbin, and then reverses at the first end.
  • the prior art yarn guide has a complicated structure, and the vibrating hands may collide and vibrate with the elastic means, which may reduce the service life of the yarn guide and the elastic means, and the impact may also generate noise.
  • the problem solved by the present invention is that the structure of the prior art yarn guide is complicated, and the vibrating hand can form an impact and vibration with the elastic device, which reduces the service life of the yarn guide and the elastic device, and the impact also generates noise.
  • the present invention provides a yarn guide, the yarn guide comprising: a linear guide and a sliding member on the linear guide;
  • the driving device is connected to the sliding member, and drives the sliding member to reciprocate on the linear guide;
  • An energy storage member spaced apart from the linear guide rail is disposed under the linear guide rail, and the energy storage member is connected to the sliding member via a connecting line, and the energy storage member provides a pulling force for the sliding member through the connecting line.
  • first limiting members are disposed under the linear guide near the linear guide rail, and a distance between the two first limiting members is smaller than a length of the linear guiding rail.
  • the connecting line is located between the two first limiting members, and the sliding member pulls the connecting line through the gap between the first limiting member and the linear track when moving.
  • the linear guide rail is divided into a reverse region between the two ends and a uniform velocity region between the two reverse regions, where the positions of the two first limiting members respectively correspond to the intersections between the two reverse regions and the uniform velocity region;
  • the first limiting member is a roller
  • the rotating shaft of the roller is perpendicular to the connecting line.
  • the roller can rotate along the rotating shaft.
  • two adjacent second limiting members are disposed between the linear guide and the energy storage member, and the two second limiting members are closer to the energy storage member than the two first limiting members;
  • the connecting line passes between two second limiting members, and the two second limiting members limit the connecting line.
  • the second limiting member is a guiding wheel
  • the rotating shaft of the guiding wheel is perpendicular to a direction in which the linear guide extends and a plane where the connecting line is located.
  • the distance from the energy storage member to the linear guide is greater than the length of the linear guide.
  • the energy storage member is located below a midpoint of the linear guide between the two first limit members.
  • the energy storage component is a spring; or the energy storage component is a pneumatic cylinder or a hydraulic cylinder.
  • the present invention also provides a yarn winding machine comprising the yarn guide of any of the above.
  • the yarn guide of the technical solution has a simple structure, no collision and large noise, and has a long service life.
  • FIG. 1 is a schematic view showing the structure of a yarn guide when a slider moves in a uniform velocity region of a linear guide according to an embodiment of the present invention
  • Figure 2 is a schematic view showing the structure of a yarn guide when the slider is moved in the reverse region of the linear guide in the embodiment of the present invention.
  • the present invention proposes a new yarn guide.
  • the yarn guide of the present embodiment includes: a linear guide 10 and a slider 12 on the linear guide 10, the linear guide 10 can be straddled on a support frame on a base (not shown), the linear guide The extending direction of 10 is parallel to the central axis of the winding bobbin 11, the sliding member 12 is movable along the linear guide 10, and the yarn passes through the sliding member 12 and is wound around the yarn bobbin 11;
  • a driving device (not shown) connected to the slider 12 for driving the slider 12 to reciprocate along the linear guide 10;
  • An energy storage member 14 is disposed under the linear guide 10 and spaced apart from the linear guide 10.
  • the energy storage member 14 and the sliding member 12 are connected by a connecting line 15.
  • the energy storage member 14 is fixed on the base, and the energy storage member 14 passes through the connecting line. 15 provides a pulling force for the slider 12.
  • the working principle of the yarn guide is:
  • the linear guide can be divided into three regions, two reverse regions 16 at both ends of the linear guide, and a uniform velocity region 18 between the opposite reverse regions 16.
  • the slider 12 moves in the uniform velocity region 18 of the linear guide 10
  • the slider 12 is moved on the linear guide 10 by the large driving force provided by the driving device, and is also subjected to the pulling force F of the connecting wire 15, which is derived from the energy storage.
  • the force F of the tensile force F in the direction of the linear guide extending F2 F * Sin ⁇ ( ⁇ is the angle between the connecting line 15 and the straight line perpendicular to the direction in which the linear guide extends), keeping F close to 0, then F2 is close to 0, the slider 12 moves closer to a constant speed.
  • the reverse driving force provided by the device, the sliding member 12 obtains a reverse acceleration under the combined force of the component force and the reverse driving force opposite to the moving direction thereof, the resultant force is sufficient to overcome the inertia of the slider 12 and allow the slider
  • the direction of movement of 12 changes, that is to say, under the action of the reverse acceleration, the moving speed of the slider is slowly reduced to zero until the reverse direction.
  • the yarn guide of the present embodiment has a simple structure and does not require a large-sized member such as a vibrating hand and two elastic devices. Moreover, when the sliding member is reversed, the reverse pulling force provided by the energy storage member is transmitted to the sliding member through the connecting wire, and the sliding member is reversed by the reverse pulling force, and no impact or shock occurs, and no noise is generated, which can also improve The life of the yarn guide.
  • the distance L of the energy storage member 14 to the linear guide 10 is much greater than the length L1 of the linear guide 10, which may be very small.
  • the slider 14 is substantially only driven by the driving force of the driving device and the frictional force between the linear guide and the slider, and maintains uniform motion, and the yarn winding is more uniform.
  • the energy storage member 14 can be a resilient device, such as a spring, and the spring can be a coil spring.
  • the elastic means When the slider 12 is moved in the uniform velocity region 18 of the linear guide 10, the elastic means may not be deformed, or only a slight deformation may occur, so that the pulling force of the connecting wire 15 received by the slider 12 is close to zero, and the slider 12 is moved nearly uniformly.
  • the elastic device undergoes a large deformation, so that the connecting wire 15 is subjected to a large elastic force of the elastic device, and the large elastic force is the connecting wire 15 to the sliding member. 12 pull force F.
  • the moving direction of the driving device is instantaneously switched, and the driving device provides a reverse driving force for the sliding member 12, and the reverse driving force and the pulling force F together overcome the inertia of the sliding member, compared with the inertia of only the reverse driving force against the sliding member.
  • the slider 12 can be reversed in a shorter time.
  • the energy storage member can also be a pneumatic cylinder or a hydraulic cylinder.
  • the connecting line is connected to the piston rod of the pneumatic cylinder or the hydraulic cylinder.
  • the connecting line is connected with the base of the pneumatic cylinder or the hydraulic cylinder, and when the sliding member reaches the reverse region, the base of the pneumatic cylinder or the hydraulic cylinder is opposite to the sliding member Lower movement to achieve the reverse of the slider.
  • the slider 12 When the energy storage member 14 is an elastic device, the slider 12 is moved from the uniform velocity region 18 to the reverse region 16, and when the reverse region 16 is moved, the elastic force of the elastic device is gradually increased until the speed of the slider 12 is gradually decreased to 0, after that, the slider 12 is reversed, the elastic force is gradually decreased, and the reverse speed of the slider 12 is gradually increased. In the reverse region 16, the speed of the slider 12 undergoes a process of gradually decreasing to a gradual increase in the reverse direction.
  • the energy storage member 14 being an elastic device
  • the energy storage member 14 selects a pneumatic cylinder or a hydraulic cylinder
  • the sliding member 12 moves in the reverse region 16
  • the piston rod or the base has no deformation process, and the connection line can be instantaneously generated.
  • the large pulling force close to the constant force therefore, the slider can obtain a large reverse acceleration, causing the slider 12 to reverse in a shorter time.
  • the speed of the slider 12 is increased from decreasing to reverse, and is completed in a relatively very short time, such that the yarn passing through the slider 12 is wound on the winding drum at the position corresponding to the reverse region.
  • the winding is more uniform and the winding quality is higher.
  • the large pulling force of the piston rod or the base is sufficient to reverse the sliding member 12 in a relatively short time, so that it is not necessary to switch the moving direction of the driving device in an instant, and it is only necessary to gradually change the moving direction of the driving device.
  • the driving device such as a motor
  • its reverse acceleration is small when it is switched in an instantaneous direction, and it also has high requirements on the performance of the driving device. Therefore, there is no need to instantaneously switch the direction of movement of the drive unit in the reverse direction, which does not particularly require the performance of the drive unit itself.
  • two first spaced apart first limiting members 13 are disposed under the linear guide 10 near the linear guide 10 , and the two first limiting members 13 can be fixed under the linear guide 10 .
  • two pillars can also be arranged on the base, and the two pillars are used for connecting the first limiting member 13.
  • the distance L2 between the two first limiting members 13 is smaller than the length L1 of the linear guide 10, and the traction connecting wire 15 passes through the gap between the first limiting member 13 and the linear guide 10 when the slider 12 moves.
  • the positions of the two first limiting members 13 are exactly two and two opposite To the junction between the region 16 and the uniform velocity region 18.
  • the slider 12 moves at a constant speed in the uniform velocity region 18, and the traction connecting wire 15 moves uniformly between the two first limiting members 13.
  • the connecting wire 15 is blocked by the first stopper 13, and the connecting wire 15 is pulled tighter.
  • the portion of the connecting line located in the reverse region 16 is parallel to the extending direction of the linear guide, and the sliding member is ignored under the ignoring the friction between the connecting wire 15 and the first limiting member 13.
  • the sliding component 12 is subjected to a pulling force F of the connecting line 15 opposite to its moving direction. If there is no first limiting member 13, the sliding component 12 is subjected to the component of the pulling force F of the connecting wire 15 when the sliding member 12 moves in the reverse region, and the component of the component is smaller than the tensile force F of the connecting wire 15. the size of. Therefore, the first limiting member 13 is disposed, and the sliding member 12 is subjected to the pulling force in the opposite direction of the linear guide 10 in the opposite direction 16 to be equal to the pulling force F of the connecting wire 15, compared with the sliding of the first limiting member.
  • the reverse pulling force received by 12 is large, and the reverse acceleration of the slider 12 is large, which can reduce the reverse time of the slider 12 and prevent the yarn from being densely accumulated at both ends of the doffing bobbin.
  • the gap between the first limiting member 13 and the linear guide 10 is set to be very small, as long as the connecting line 15 can be ensured, so that the connecting line portion at the reverse region is extended parallel to the linear guide.
  • the reverse pulling force of the slider 12 is exactly equal to the pulling force F of the connecting wire 15.
  • the slider 12 If the gap between the first limiting member 13 and the linear guide 10 is large, when the slider 12 is moved to the reverse region, the angle between the connecting portion of the reverse region and the extending direction of the linear guide is greater than 0, the slider
  • the reverse pulling force in the direction in which the linear guide extends is a component of the tensile force F of the connecting line, the magnitude of the component being smaller than the magnitude of the pulling force F, which causes the reverse acceleration of the slider 12 to be small.
  • the energy storage member 14 is located below the midpoint of the linear guide between the two first limit members 13.
  • the tension of the slider 12 at the two opposite ends 16 of the linear guide by the energy storage member 14 is substantially the same, and the reverse speed of the slider 12 in the two opposite regions 16 is substantially the same, ensuring the corresponding two The yarns in the reverse zone 16 position are evenly cross-wound.
  • the first limiting member 13 is a roller, and the rotating shaft of the roller is perpendicular to the straight line.
  • the extending direction of the guide rail 10 and the plane of the connecting line 15 allow the roller to rotate along the rotating shaft of the roller.
  • the roller may be a fixed pulley, and the outer circumferential surface of the fixed pulley has a wheel groove.
  • the connecting wire 15 drives the fixed pulley to rotate in the wheel groove. This can reduce the friction between the connecting wire 15 and the first limiting member 13.
  • the connecting wire 15 is a steel wire, which ensures that the connecting wire has sufficient strength to withstand the tensile force of the energy storage member and is not deformed.
  • two adjacent second limiting members 17 are disposed between the linear guide 10 and the energy storage member 14.
  • the two second limiting members 17 are located in a straight line, and the two first limiting members 13 are located.
  • the straight line and the linear guide 10 are parallel to each other and on the same plane, the connecting line 15 passes between the two second limiting members 17, and the two second limiting members 17 limit the connecting line 15 to limit
  • the connecting wire 15 swings a large amplitude in the direction in which the linear guide 10 extends.
  • the distance between the two second limiting members 17 is much smaller than the distance between the two first limiting members 13.
  • the distance between the two second limiting members 17 is very small, and should be just right.
  • the connecting wire 15 is allowed to pass through to avoid a large swing of the connecting wire 15.
  • the second limiting member 17 is a guiding wheel, and the rotating shaft of the guiding wheel is perpendicular to the extending direction of the linear guide 10 and the plane of the connecting line 15.
  • the connecting wire 15 comes into contact with the guide wheel, the connecting wire 15 is located just in the wheel groove of the guide wheel.
  • the present invention also provides a yarn winding machine comprising the above yarn guide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)

Abstract

一种导纱器及纱线卷绕机，其中导纱器包括：直线导轨（10）、位于直线导轨（10）上的滑动件（12）、驱动装置以及在所述直线导轨（10）下设置有与直线导轨（10）相互隔开的储能件（14），所述滑动件（12）可在直线导轨（10）上沿直线导轨（10）移动，所述驱动装置与滑动件（12）连接，驱动所述滑动件（12）在直线导轨（10）上移动，所述储能件（14）与滑动件（12）通过连接线（15）连接，所述储能件（14）通过连接线（15）为滑动件（12）提供拉力。该导纱器结构简单，不会出现碰撞和较大噪声，具有较长使用寿命。

Description

导纱器及纱线卷绕机
本申请要求2013年11月6日提交中国专利局、申请号为201310547305.X、发明名称为“导纱器及纱线卷绕机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及纺织机械领域，特别涉及一种导纱器及纱线卷绕机。
背景技术
由纺织机械生产或加工得到的纱线，通过纱线卷绕机卷绕形成卷装。通常，一根纱线是横动地卷绕在旋转中的络纱筒管上，以形成具有交叉卷绕纱线的卷装。
一方面，络纱筒管由驱动电机驱动而实现旋转，在旋转过程中，纱线随之往复卷绕在络纱筒管上。另一方面，在络纱筒管下方设置有导纱器，导纱器可沿络纱筒管的轴向方向横动，纱线穿过导纱器后卷绕在络纱筒管上。也就是，在络纱筒管旋转的同时，导纱器牵引纱线横向移动，纱线以与络纱筒管轴向方向呈钝角的方向卷绕在络纱筒管上。
导纱器的横向移动为一个往复移动过程。在一个周期中，导纱器在络纱筒管轴向方向的第一端得到一个加速度后，基本可以匀速横动，至络纱筒管轴向方向的第二端反向并得到一个反向加速度，反向匀速横动，朝向络纱筒管第一端移动，之后，在第一端反向。
在公告日为2002年11月20日、专利公告号为EP0838422(B1)的欧洲专利中，采用了一种具有振动式指针的导纱器，导纱器沿扇形绕着与络纱筒管垂直的销轴进行移动，并通过电动马达驱动下作往复式顺时针/逆时针运动。在导纱器摆动的两个反向区域具有储能件，该储能件是由弹性装置组成，这些弹性装置为导纱器瞬间反向提供弹力。
但是，现有技术的导纱器结构复杂，振动式指针会与弹性装置形成撞击和震动，这会降低导纱器和弹性装置的使用寿命，而且撞击也会产生噪音。
发明内容
本发明解决的问题是，现有技术的导纱器的结构复杂，振动式指针会与弹性装置形成撞击和震动，这会降低导纱器和弹性装置的使用寿命，而且撞击也会产生噪音。
为解决上述问题，本发明提供一种导纱器，该导纱器包括：直线导轨和位于直线导轨上的滑动件；
驱动装置，所述驱动装置与滑动件连接，驱动所述滑动件在直线导轨上往复移动；
在所述直线导轨下设置有与直线导轨相互隔开的储能件，所述储能件与滑动件通过连接线连接，所述储能件通过连接线为滑动件提供拉力。
可选地，在所述直线导轨下靠近直线导轨处设置有两个相互隔开的第一限位件，两个所述第一限位件之间的距离小于所述直线导轨的长度，所述连接线位于两个第一限位件之间，所述滑动件在移动时牵引连接线穿过所述第一限位件与直线轨道之间的空隙。
可选地，所述直线导轨分为位于两端的反向区域和两反向区域之间的匀速区域，两个第一限位件的位置分别和两反向区域与匀速区域的交界处对应；
所述滑动件在匀速区域移动时，牵引连接线在两个第一限位件之间匀速移动；
所述滑动件在反向区域移动时，对应所述反向区域位置的连接线部分与直线导轨平行。
可选地，所述第一限位件为滚轮，所述滚轮的转轴垂直于连接线 和直线导轨的延伸方向所在平面，滚轮可沿转轴转动。
可选地，在所述直线导轨与储能件之间设置有两个靠近的第二限位件，两个第二限位件比两个第一限位件靠近所述储能件；
所述连接线从两个第二限位件之间穿过，所述两个第二限位件对连接线限位。
可选地，所述第二限位件为导向轮，所述导向轮的转轴垂直于直线导轨延伸方向和连接线所在平面。
可选地，所述储能件至直线导轨的距离大于所述直线导轨的长度。
可选地，所述储能件位于两个第一限位件之间的直线导轨中点下方。
可选地，所述储能件为弹簧；或者，所述储能件为气压缸或液压缸。
本发明还提供一种纱线卷绕机，该纱线卷绕机包括上述任一所述的导纱器。
与现有技术相比，本发明的技术方案具有以下优点：
本技术方案的导纱器结构简单，不会出现碰撞和较大噪声，具有较长使用寿命。
附图说明
图1是本发明具体实施例中，滑动件在直线导轨的匀速区域移动时的导纱器的结构示意图；
图2是本发明具体实施例中，滑动件在直线导轨的反向区域移动时的导纱器的结构示意图。
具体实施方式
针对现有技术存在的问题，本发明提出一种新的导纱器。
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
参照图1，本实施例的导纱器包括：直线导轨10和位于直线导轨10上的滑动件12，直线导轨10可以横亘在一底座(图中未示出)上的支撑架上，直线导轨10的延伸方向与络纱筒管11的中轴线平行，滑动件12可沿直线导轨10移动，纱线穿过滑动件12后卷绕在纱线筒管11上；
驱动装置(图中未示出)，该驱动装置与滑动件12连接，用于驱动滑动件12沿直线导轨10往复移动；
在直线导轨10下设置有与直线导轨10相互隔开的储能件14，储能件14与滑动件12通过连接线15连接，储能件14固定在底座上，储能件14通过连接线15为滑动件12提供拉力。
导纱器的工作原理为：
参照图1，直线导轨可以分为三个区域，位于直线导轨两端的两反向区域16、位于两反向区域16之间的匀速区域18。滑动件12在直线导轨10的匀速区域18移动时，滑动件12受到驱动装置提供的较大驱动力而在直线导轨10上移动，还受到连接线15的拉力F，该拉力F来源于储能件14，拉力F在直线导轨延伸方向的分力F2＝F*Sinα(α为连接线15与垂直于直线导轨延伸方向的直线之间的夹角)，保持F接近于0，则F2接近于0，滑动件12接近匀速移动。
参照图2，当滑动件12由直线导轨10的匀速区域18移动到直线导轨10一端的反向区域16，并在反向区域16移动时，与滑动件12在匀速区域18移动过程相比较，连接线15被拉的更紧，储能件14对连接线15提供的拉力变大，相应的连接线15对滑动件12产生的拉力也变大。拉力在平行于直线导轨10的延伸方向的分力与滑动件12的移动方向相反，同时驱动装置反向转动，滑动件12受到驱动 装置提供的反向驱动力，滑动件12在与它的移动方向相反的分力和反向驱动力的合力作用下，获得一个反向加速度，该合力足以克服滑动件12的惯性并让滑动件12的移动方向改变，也就是说，在该反向加速度的作用下，滑动件的移动速度慢慢减为零直至反向。
与现有技术相比，本实施例的导纱器结构简单，不需要振动式指针和两个弹性装置等大尺寸部件。而且，在滑动件反向时，储能件提供的反向拉力通过连接线传递给滑动件，滑动件受反向拉力反向，不会出现撞击和震荡，不会引发噪音，这也能提升导纱器的使用寿命。
在具体实施例中，储能件14至直线导轨10的距离L远大于直线导轨10的长度L1，α会非常小。这样，参照图1，当滑动件14在匀速区域18移动时，受到连接线15的拉力F在水平方向的分力F2(F2＝F*Sinα)，因α较小而可被忽略。滑动件14基本只受驱动装置的驱动力和直线导轨与滑动件之间的摩擦力的作用，而保持匀速运动，纱线卷绕更加均匀。
在具体实施例中，储能件14可以为弹性装置，如弹簧，弹簧可以是螺旋弹簧。当滑动件12在直线导轨10的匀速区域18移动时，弹性装置可以不发生形变，或者只发生微量形变，使滑动件12受到的连接线15的拉力接近为0，滑动件12接近匀速移动。但是，当滑动件12在直线导轨10两端的反向区域16移动时，弹性装置发生较大形变，这样连接线15受到弹性装置的较大弹力，该较大弹力即为连接线15对滑动件12的拉力F。同时瞬间切换驱动装置的运动方向，驱动装置为滑动件12提供反向驱动力，该反向驱动力和拉力F共同克服滑动件的惯性，相对于只有反向驱动力克服滑动件的惯性而言，可以使滑动件12在较短时间内反向。
在其他实施例中，储能件也可以是气压缸或液压缸。当气压缸或液压缸的底座与导纱器的底座连接时，连接线与气压缸或液压缸的活塞杆连接。当滑动件到达反向区域时，活塞杆相对滑动件向下运动，连接线被拉紧，连接线受到活塞杆的拉力，该拉力作用于滑动件，使 滑动件反向。当气压缸或液压缸的活塞杆与导纱器的底座连接时，连接线与气压缸或液压缸的底座连接，当滑动件到达反向区域时，气压缸或液压缸的底座相对滑动件向下运动，实现滑动件反向。
当储能件14为弹性装置时，滑动件12由匀速区域18移动至反向区域16，并在反向区域16移动时，弹性装置的弹力逐渐增大至滑动件12的速度逐渐减小为0，之后，滑动件12反向，弹力逐渐减小，滑动件12反向速度逐渐增大。在反向区域16，滑动件12的速度经历逐渐减小到反向逐渐增大的过程。
与储能件14为弹性装置相比，当储能件14选择气压缸或液压缸时，当滑动件12在反向区域16移动时，活塞杆或底座没有形变过程，能对连接线产生瞬间的接近于恒力的较大拉力，因此，滑动件可以获得较大的反向加速度，使滑动件12在较短时间内反向。一方面，滑动件12的速度由减小到反向增大，是在相对非常短的时间内完的，这样穿过滑动件12的纱线在对应反向区域位置的络纱滚筒上的卷绕更加均匀，卷绕质量也更高。另一方面，活塞杆或底座的较大拉力足以使滑动件12在较较短时间内反向，则不需要再瞬间切换驱动装置的运动方向，而只需逐渐改变驱动装置的运动方向。考虑到驱动装置，如电机，在瞬间切换的运动方向时，它的反向加速度很小，而且对驱动装置的性能也具有较高要求。所以，不需要在反向区域瞬间切换驱动装置的运动方向，这对驱动装置本身的性能也就不会有特别高的要求。
在具体实施例中，参照图1，在直线导轨10下靠近直线导轨10处设置有两个相互隔开的第一限位件13，两个第一限位件13可以固定在直线导轨10下的两支撑架上，也可以在底座上设置两支柱，两支柱用于连接第一限位件13。两个第一限位件13之间的距离L2小于直线导轨10的长度L1，滑动件12在移动时牵引连接线15穿过所述第一限位件13与直线导轨10之间的空隙。
具体地，参照图1，两个第一限位件13的位置恰好分别和两反 向区域16与匀速区域18之间的交界处。滑动件12在匀速区域18为匀速移动，并牵引连接线15在两个第一限位件13之间匀速移动。参照图2，当滑动件12从匀速区域18移动至某一个反向区域16时，连接线15遭到第一限位件13阻挡，连接线15被拉得更紧。滑动件12在反向区域16移动时，位于反向区域16的连接线部分平行于直线导轨延伸方向，在忽略连接线15与第一限位件13之间的摩擦力的前提下，滑动件12受到与它的移动方向相反的连接线15的拉力F。如果没有第一限位件13，滑动件12在反向区域移动时受到直线导轨延伸方向的反向分力为连接线15的拉力F的分力，这个分力大小小于连接线15的拉力F的大小。因此，设置第一限位件13，滑动件12在反向区域16受到沿直线导轨10延伸方向的反向拉力等于连接线15的拉力F，与未设置第一限位件相比较，滑动件12受到的反向拉力较大，滑动件12的反向加速度较大，这可以缩小滑动件12的反向时间，避免纱线在落纱筒管两端密集堆积。
在本实施例中，设置第一限位件13与直线导轨10之间的空隙非常小，只要能确保连接线15通过即可，这样，位于反向区域位置的连接线部分平行于直线导轨延伸方向，滑动件12受到的反向拉力恰好等于连接线15的拉力F。如果第一限位件13与直线导轨10之间的空隙很大，当滑动件12移动至反向区域，反向区域的连接线部分与直线导轨延伸方向之间的夹角大于0，滑动件12受到沿直线导轨延伸方向的反向拉力为连接线的拉力F的一个分力，该分力的大小小于拉力F的大小，这会使滑动件12的反向加速度较小。
在具体实施例中，储能件14位于两个第一限位件13之间的直线导轨中点下方。这样，滑动件12在直线导轨两端的两个反向区域16受到储能件14提供的拉力的大小基本相同，滑动件12在两个反向区域16的反向速度大小基本相同，保证对应两个反向区域16位置的纱线均匀交叉卷绕。
在本实施例中，第一限位件13为滚轮，滚轮的转轴垂直于直线 导轨10的延伸方向和连接线15所在平面，并使滚轮可沿滚轮的转轴转动。例如，滚轮可以是定滑轮，定滑轮的外圆周面具有轮槽，当连接线15遭到定滑轮阻挡时，连接线15在轮槽中带动定滑轮转动。这样可以降低连接线15与第一限位件13之间的摩擦力。连接线15为钢丝，可以保证连接线具有承受储能件的拉力的足够强度，而且不会变形。
在具体实施例中，在直线导轨10与储能件14之间设置有两个靠近的第二限位件17，两个第二限位件17所在直线、两个第一限位件13所在直线与直线导轨10，三者相互平行且在同一平面上，连接线15从两个第二限位件17之间穿过，两个第二限位件17对连接线15进行限位，限制连接线15在直线导轨10延伸方向发生较大幅度的摆动。在具体实施例中，两个第二限位件17之间的距离远小于两个第一限位件13之间的距离，两个第二限位件17之间的距离非常小，应恰好允许连接线15穿过，避免连接线15发生大幅度摆动。
在本实施例中，第二限位件17为导向轮，导向轮的转轴垂直于直线导轨10的延伸方向和连接线15所在平面。这样，当连接线15与导向轮接触时，连接线15恰好位于导向轮的轮槽中。
本发明还提供一种纱线卷绕机，该纱线卷绕机包括上述导纱器。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (10)

  1. 一种导纱器，其特征在于，包括：直线导轨和位于直线导轨上的滑动件；
    驱动装置，所述驱动装置与滑动件连接，驱动所述滑动件在直线导轨上往复移动；
    在所述直线导轨下设置有与直线导轨相互隔开的储能件，所述储能件与滑动件通过连接线连接，所述储能件通过连接线为滑动件提供拉力。
  2. 如权利要求1所述的导纱器，其特征在于，在所述直线导轨下靠近直线导轨处设置有两个相互隔开的第一限位件，两个所述第一限位件之间的距离小于所述直线导轨的长度，所述连接线位于两个第一限位件之间，所述滑动件在移动时牵引连接线穿过所述第一限位件与直线轨道之间的空隙。
  3. 如权利要求2所述的导纱器，其特征在于，所述直线导轨分为位于两端的反向区域和两反向区域之间的匀速区域，两个第一限位件的位置分别和两反向区域与匀速区域的交界处对应；
    所述滑动件在匀速区域移动时，牵引连接线在两个第一限位件之间匀速移动；
    所述滑动件在反向区域移动时，对应所述反向区域位置的连接线部分与直线导轨延伸方向平行。
  4. 如权利要求2所述的导纱器，其特征在于，所述第一限位件为滚轮，所述滚轮的转轴垂直于连接线和直线导轨的延伸方向所在平面，滚轮可沿转轴转动。
  5. 如权利要求2所述的导纱器，其特征在于，在所述直线导轨与储能件之间设置有两个靠近的第二限位件，两个第二限位件比两个第一限位件靠近所述储能件；
    所述连接线从两个第二限位件之间穿过，所述两个第二限位件对连接线限位。
  6. 如权利要求5所述的导纱器，其特征在于，所述第二限位件为导向轮，所述导向轮的转轴垂直于直线导轨延伸方向和连接线所在平面。
  7. 如权利要求1至6中任一项所述的导纱器，其特征在于，所述储能件至直线导轨的距离大于所述直线导轨的长度。
  8. 如权利要求2所述的导纱器，其特征在于，所述储能件位于两个第一限位件之间的直线导轨中点下方。
  9. 如权利要求1所述的导纱器，其特征在于，所述储能件为弹簧；或者，所述储能件为气压缸或液压缸。
  10. 一种纱线卷绕机，其特征在于，包括权利要求1～9任一项所述的导纱器。
PCT/CN2014/088185 2013-11-06 2014-10-09 导纱器及纱线卷绕机 Ceased WO2015067112A1 (zh)

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