WO2020244097A1 - 一种曲线牵伸系统以及具有该曲线牵伸系统的细纱机 - Google Patents

一种曲线牵伸系统以及具有该曲线牵伸系统的细纱机 Download PDF

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Publication number
WO2020244097A1
WO2020244097A1 PCT/CN2019/106711 CN2019106711W WO2020244097A1 WO 2020244097 A1 WO2020244097 A1 WO 2020244097A1 CN 2019106711 W CN2019106711 W CN 2019106711W WO 2020244097 A1 WO2020244097 A1 WO 2020244097A1
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Prior art keywords
roller
section
arc
control board
curved
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PCT/CN2019/106711
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English (en)
French (fr)
Inventor
程隆棣
邓万胜
董劲松
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广众纺机科技(东莞)有限公司
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Publication of WO2020244097A1 publication Critical patent/WO2020244097A1/zh

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D01H5/88—Cradles; Tensors

Definitions

  • the present invention relates to the technical field of spinning frames. More specifically, the present invention relates to a curved drafting system and a spinning frame with the curved drafting system.
  • the drafting mechanism of ring spinning frame generally adopts double apron drafting mechanism, and the double apron drafting mechanism is in operation.
  • the upper and lower aprons are both poor conductors, static electricity tends to accumulate on the aprons, and the fiber bundle will cause it to take Static electricity causes the fiber bundle to wrap around the rubber roller, apron, and roller.
  • the fibers repel each other due to static electricity, which makes the fiber bundle more dispersed.
  • the edge fiber also leaves the fiber bundle to become flying flowers, which greatly increases harmful hairiness and spinning Problems such as end breakage;
  • the speed difference between the upper and lower aprons can also easily cause the movement speed of the upper and lower fibers in the beard to be out of sync, which has a kneading effect on the fiber bundle and affects the yarn sliver, hairiness, coarse details and other yarns.
  • the speed difference between the upper and lower aprons can easily cause the instability of the drafting force during the drafting process, and a stable drafting force is the key to ensuring normal drafting and yarn quality, and large drafting force fluctuations It is difficult to satisfy that the holding force is always greater than the drafting force in the normal drafting process, and the fiber guidance must be greater than the control requirement of the control force, which will deteriorate the quality of the yarn.
  • CN107675303A discloses a DS curve drafting system for spinning frame, in which the top of the control board is connected with a tension device through the control board bracket, and the grid ring is wound on the lower end surface of the control board, the middle roller and the tension
  • the outer peripheral surface formed by the device can be driven by the middle roller to drive the grid ring to achieve the upper transmission form, which facilitates the replacement of the grid ring during equipment maintenance, can effectively reduce the difficulty of equipment maintenance and reduce maintenance costs; at the same time;
  • Adopting the upper transmission form, the mesh circle rotation is good, and can ensure the stability of the product quality
  • the curved structure of the upper end of the curved tube of the curved drafting system includes a smoothly connected D-shaped curved surface extending along the length of the curved tube Sections and S-shaped curved sections can reasonably distribute the friction field during the drafting process, ensuring the stability of product quality.
  • production practice shows that the surface of the finished yarn still has certain details such as hairiness, and it is easy to damage
  • the object of the present invention is to provide a curved drafting system and a spinning frame with the curved drafting system.
  • the curvilinear drafting system of the present invention includes a front roller and a middle roller whose central axes are parallel to each other.
  • the upper part of the front roller is correspondingly provided with a front top roller whose central axes are parallel to each other, and the upper part of the middle roller is correspondingly provided with a central axis parallel to each other.
  • a front nip is formed between the front top roller and the front roller
  • a middle nip is formed between the middle top roller and the middle roller
  • a curved tube is arranged between the front roller and the middle roller
  • a control board is arranged between the front top roller and the middle top roller; the top of the control board is connected with a tension device through the control board bracket, and the grid ring is wound on the lower end surface of the control board, the middle top roller and the tension
  • the control board bracket is rotatably installed on the center mandrel of the middle roller; the lower end surface of the control board and the upper end surface of the curved tube form a mutual fitting structure, which It is characterized in that: the upper end surface of the curved tube successively includes an arc-shaped convex curved surface section, an arc-shaped lower groove, and a horizontal plane section extending along the length direction of the curved tube.
  • the arc-shaped convex curved surface section and the horizontal plane section are smoothly connected, the arc-shaped convex curved surface section is disposed close to the front roller, and the horizontal plane section is disposed close to the middle roller; the convex curved surface section is connected to the horizontal plane section There is a height difference d, and the height of the convex curved surface section is higher than the horizontal plane section; the lower end surface of the control board successively includes an arc-shaped inner groove and an arc-shaped convex section extending along the length of the control board And an end surface section, the end of the arc-shaped inner groove is provided with a control contact end, and the arc-shaped convex section is smoothly connected with the arc-shaped inner groove and the end surface section; in the working state, the convex curved surface section Is embedded in the arc-shaped inner groove, the arc-shaped convex section is embedded in the arc-shaped lower groove, and an opening is formed between the horizontal plane section and the end surface section, and the height of
  • the top of the control board is provided with a first dovetail groove and a second dovetail groove, the first dovetail groove is disposed close to the front top roller, the second dovetail groove is disposed close to the middle top roller, and the The cross section of the first dovetail groove is smaller than the cross section of the second dovetail groove; the lower end of the control board bracket is provided with a protruding first dovetail block and a second dovetail block, and the first dovetail block is assembled on the first dovetail block.
  • the second dovetail block is assembled in the second dovetail groove;
  • the control board bracket is provided with a rotating connection part at one end facing the middle roller, and the rotating connection part is sleeved on the The middle mandrel of the middle top roller can rotate around the middle mandrel.
  • the ends of the front roller in the length direction are respectively installed on the front roller sliding seat, and the two ends of the middle roller in the length direction are respectively installed on the middle roller sliding seat; the curved tube is arranged on the front roller and the sliding seat.
  • the upper front end of the front roller slide seat is provided with a vertical front side wall, the front side wall is spaced a certain distance from the front wall of the front roller slide seat, and the upper rear end is provided with a vertical rear wall.
  • the front wall of the front roller sliding seat is fixed with a stamped spring steel sheet and an assembly groove is formed between the stamped spring steel sheet and the front side wall.
  • the upper front end of the middle roller slide is provided with a vertical front side wall, the front side wall is spaced a certain distance from the front wall of the middle roller slide, and the upper rear end is provided with a vertical rear wall, the
  • the front wall of the middle roller sliding seat is fixed with a stamped spring steel sheet and an assembly groove is formed between the stamped spring steel sheet and the front side wall.
  • the end of the curved tube in the length direction is fitted on the rear wall of the front roller slide, the stamped spring steel sheet of the middle roller slide, and the front side wall of the middle roller slide, and extends into the front roller slide
  • the upper end of the stamped spring steel sheet has a curved spring-loaded structure.
  • the curved tube adopts the above-mentioned assembly method not only to be easy to install, but also to make the curved tube have an automatic adjustment function in the height direction when the yarn reaches a certain thickness, which can automatically press the spring steel sheet to lift itself
  • the curved tube can effectively control yarn formation during the entire operation, which is beneficial to ensure the stability of product quality and avoid accidental damage to the curved tube.
  • the height difference between the convex curved surface section and the horizontal plane section is 0.8-1.5 mm.
  • the width of the arc-shaped convex curved surface section is 4.5 to 6.0 mm
  • the width of the arc-shaped lower groove is 15.0 to 16.5 mm
  • the width d3 of the horizontal plane section is 4.0 to 5.0 mm.
  • Another aspect of the present invention also relates to a spinning frame having the above-mentioned curved drafting system. Furthermore, the spinning frame further has a rear top roller and a rear roller matched with the rear top roller.
  • the curved drafting system of the present invention and the spinning frame with the curved drafting system have the following beneficial effects:
  • Fig. 1 is a schematic cross-sectional structure diagram of the curvilinear drafting system of the present invention.
  • Figure 2 is a schematic diagram of the matching structure of the curve tube and the control tube in the curve drafting system of the present invention.
  • Fig. 3 is a schematic cross-sectional view of the curvilinear pipe in the curvilinear drafting system of the present invention.
  • Figure 4 is a schematic diagram of the assembly structure of the control board and the tension device in the curve drafting system of the present invention.
  • Fig. 5 is a schematic diagram of the assembly cross-sectional structure of the curved tube in the curved drafting system of the present invention.
  • Fig. 6 is a schematic diagram of a three-dimensional structure of a spinning frame with a curvilinear drafting system of the present invention.
  • Fig. 7 is a front view of the spinning frame with a curvilinear drafting system of the present invention.
  • Fig. 8 is a schematic cross-sectional structure diagram of a spinning frame with a curvilinear drafting system of the present invention.
  • the curvilinear drafting system of this embodiment includes a front roller (40) and a middle roller (50) whose central axes are parallel to each other.
  • the upper part of the front roller (40) is correspondingly provided with a front roller whose central axes are parallel to each other.
  • the upper part of the top roller (31) and the middle roller (50) are correspondingly provided with a middle top roller (32) whose central axes are parallel to each other.
  • a front jaw is formed between the front top roller (31) and the front roller (40)
  • a middle nip is formed between the middle top roller (32) and the middle roller (50)
  • a curved tube (10) is arranged between the front roller (40) and the middle roller (50)
  • a control board (20) is arranged between (31) and the middle top roller (32), and the length direction of the curved tube (10) is parallel to the central axis of the front roller (40) and the middle roller (50), The length direction of the control board (20) is parallel to the length direction of the curved tube (10).
  • the top of the control board (20) is connected with a tension device (70) through a control board bracket (60), and a grid ring (80) is wound around the lower end surface of the control board (20) and the middle roller (32) And the outer peripheral surface formed by the tension device (70), the control board bracket (60) is rotatably installed on the center mandrel (36) of the middle roller (32); specifically, the control board
  • the top of (20) is provided with a first dovetail groove (24) and a second dovetail groove (25), the first dovetail groove (24) is arranged close to the front roller (31), and the second dovetail groove ( 25) Close to the middle top roller (32), the cross section of the first dovetail groove (24) is smaller than the cross section of the second dovetail groove (25);
  • the lower end of the control board bracket (60) is provided with Protruding first dovetail block (61) and second dovetail block (62), said first dovetail block (61) is fitted in said first dovetail groove (24),
  • the tension device (70) includes a tension seat (71), a tension frame (72) and a tension torsion spring (73).
  • the tension seat (71) is integrally formed on the top of the control board bracket (60).
  • the two ends of the tension seat (71) in the length direction are respectively rotatably connected to the tension frame (72) through a tension seat roller (74), and the tension torsion spring (73) is sleeved on the tension seat roller (74)
  • the top of the tension frame (72) is provided with a tension shaft (75) parallel to the tension seat roller (74), and the grid ring (80) is wound around the bottom of the control board (20).
  • both the curved tube (10) and the control board (20) are provided with magnetic steel (not shown in the figure), and the magnetic steel is used to ensure that the two are kept properly under the action of magnetic force. gap.
  • the grid ring (80) is driven by the middle top roller (32), and at the same time, the two dovetail matching structures are used to improve the axial flatness of the tension frame, and further ensure the reliable control of different strands. Synchronous rotation of the grid circle on the control panel.
  • the lower end surface of the control board (20) and the upper end surface of the curved tube (10) form a mating structure that cooperates with each other.
  • the upper end surface of the curved tube (10) sequentially includes an arc-shaped convex curved surface section (11), an arc-shaped lower groove (12) and a horizontal plane section (13) extending along the length of the curved tube (10), so
  • the arc-shaped lower groove (12) is smoothly connected with the arc-shaped convex curved surface section (11) and the horizontal plane section (13), and the arc-shaped convex curved surface section (11) is close to the front roller (40).
  • the horizontal plane section (13) is arranged close to the middle roller (50); the convex curved section (11) and the horizontal plane section (13) have a height difference d, and the height difference d is 0.8-1.5mm , And the height of the convex curved surface section (11) is higher than the horizontal plane section (13); the width d1 of the arc-shaped convex curved surface section (11) is 4.5-6.0mm, and the arc-shaped lower groove The width d2 of (12) is 15.0-16.5 mm, and the width d3 of the horizontal plane section (13) is 4.0-5.0 mm.
  • the lower end surface of the control board (20) sequentially includes an arc-shaped inner groove (21), an arc-shaped convex section (22), and an end surface section (23) extending along the length of the control board (20).
  • the end of the arc-shaped inner groove (21) is provided with a control contact end (26), and the arc-shaped convex section (22) is smoothly connected with the arc-shaped inner groove (21) and the end surface section (23);
  • the convex curved section (11) is embedded in the arc-shaped inner groove (21)
  • the arc-shaped convex section (22) is embedded in the arc-shaped lower groove (12)
  • An opening is formed between the section (13) and the end surface section (23), the height of the control contact end (24) is lower than the height of the convex curved section (11); and the yarn (100) is After the middle jaw enters, it comes into contact with the grid ring (80), the arc-shaped convex curved surface section (11), and the control contact end
  • the middle friction control area is extended backward, and the yarn control time is lengthened, which solves the problem of adopting DS curve drafting In the process, it is easy to produce hairiness and other details.
  • the roving enters the curved channel with the rotation of the roller without obstacles, ensuring smoothness.
  • the longitudinal ends of the front roller (40) are respectively mounted on the front roller sliding seat (41), and the longitudinal ends of the middle roller (50) are respectively mounted on the middle roller sliding seat (51).
  • the curved tube (10) is arranged between the front roller (40) and the middle roller (50).
  • the upper front end of the front roller slide (41) is provided with a vertical front side wall (42), and the front side wall (42) is spaced a certain distance from the front wall (46) of the front roller slide (41)
  • the upper rear end is provided with a vertical rear wall (43).
  • the front wall (46) of the front roller slide (41) is fixed with a stamped spring steel sheet (45) by bolts (47) and is An assembly groove (44) is formed between the spring steel sheet (45) and the front side wall (42).
  • the upper front end of the middle roller slide (51) is provided with a vertical front side wall (52), and the front side wall (52) is spaced a certain distance from the front wall (56) of the middle roller slide (51) Distance, the upper rear end is provided with a vertical rear wall (53), the front wall (56) of the middle roller slide (51) is fixed with a stamped spring steel sheet (55) through a bolt (57) and is An assembly groove (54) is formed between the spring steel sheet (55) and the front side wall (52).
  • the lengthwise end of the curved tube (10) is fitted into the rear wall (43) of the front roller slide seat (41), the stamped spring steel sheet (55) of the middle roller slide seat (51), and the middle roller slide On the front side wall (52) of the seat (51) and extends into the gap between the rear wall (43) of the front roller slide (41) and the stamped spring steel sheet (55) of the middle roller slide (51) And in the assembling groove (54) of the middle roller sliding seat (51), the upper end of the stamped spring steel sheet (55) has a curved spring mounting structure.
  • the curved tube (10) adopts the above-mentioned assembly method not only to be easy to install, but also to make the curved tube (10) have an automatic adjustment function in the height direction when the yarn (100) reaches a certain thickness.
  • the stamped spring steel sheet (55) can lift the curved tube (10) by itself, thereby effectively controlling the yarn formation during the entire operation, which is beneficial to ensure the stability of product quality and avoid external damage to the curved tube .
  • FIGs 6-8 show a spinning frame with the curvilinear drafting system of the present invention.
  • the spinning frame has a rear top roller (33) and a rear roller (90) matched with the rear top roller (33).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

一种曲线牵伸系统及包含曲线牵伸系统的细纱机，牵伸系统包括设置于前罗拉（40）与中罗拉（50）之间的曲线管（10）和设置于前皮辊（31）与中皮辊（32）之间的控制板（20），曲线管(10)的上端面依次包括沿着曲线管(10)长度方向延伸的弧形凸起曲面段(11)、弧形下凹槽(12)和水平面段(13)，控制板(20)的下端面依次包括沿控制板(20)长度方向延伸的弧形内凹槽(21)、弧形凸起段(22)和端面段(23)，在工作状态时，控制板(20)的下端面与曲线管(10)的上端面形成相互配合的嵌合结构；该曲线牵伸系统提高了设备组件运行的稳定性、减少纱线细节的产生，提高了成纱质量。

Description

一种曲线牵伸系统以及具有该曲线牵伸系统的细纱机 技术领域
本发明涉及细纱机的技术领域，更具体地说，本发明涉及一种曲线牵伸系统以及具有该曲线牵伸系统的细纱机。
背景技术
随着纺织技术的不断发展创新，各种新型纺织技术应运而生，目前应用于环锭纺细纱机的牵伸机构普遍采用双胶圈牵伸机构，而双胶圈牵伸机构在运行过程中上下胶圈往往会出现速度差，这就会导致上下胶圈产生相互摩擦而产生静电，而由于上下胶圈均是不良导体，静电易聚集在胶圈上，纤维束通过时就会使其带上静电，从而导致纤维束缠绕胶辊、胶圈、罗拉，同时纤维之间因静电产生相互排斥又使得纤维束更亦分散，边纤维更亦离开纤维束成飞花、大量增加有害毛羽和纺纱断头等问题；另外上下胶圈之间的速度差也易造成须条中的上下层纤维之间运动速度不同步，对纤维束产生搓揉作用，影响成纱条干、毛羽、粗细节等纱线指标；此外，上下胶圈之间速度差易造成牵伸过程中牵伸力的不稳定，而稳定的牵伸力是保证正常牵伸和成纱质量的关键所在，较大的牵伸力波动难以满足正常牵伸过程中握持力始终大于牵伸力，纤维的引导必须大于控制力的控制要求，会恶化成纱质量。
针对上述问题，CN107675303A公开了一种细纱机的DS曲线牵伸系统，其中的控制板的顶部通过控制板支架连接有张力装置且网格圈绕装于控制板的下端面、中皮辊以及张力装置所形成的外周面，从而能够由中皮辊带动网格圈传动以实现上传动形式，其便于设备维护保养时网格圈的更换，能有效降低设备维护保养难度、减少维护保养成本；同时，采用上传动形式其网格圈回转同步性好，能够保证产品质量的稳定；其曲线牵伸系统的曲线管上端面的曲面结构包括沿曲线管长度方向延伸的且顺滑连接的D形曲面段和S形曲面段，能在牵伸过程中合理分配摩擦力场，保证了产品质量的稳定。但生产实践表明成纱表面仍然有一定的毛羽等细节，另外在粗纱卷绕罗拉厚度较厚时容易损坏曲线管组件。
发明内容
为了提高设备组件运行的稳定性、减少纱线细节的产生提高成纱质量，本发明的目的在于提供一种曲线牵伸系统以及具有该曲线牵伸系统的细纱机。
本发明的曲线牵伸系统，包括中心轴线相互平行的前罗拉和中罗拉，所述前罗拉的上部对应设置有中心轴线相互平行的前皮辊，中罗拉的上部对应设置有中心轴线相互平行的中皮辊，所述前皮辊与前罗拉之间形成一前钳口，所述中皮辊与中罗拉之间形成一中钳口，所述前罗拉与中罗拉之间设置有曲线管，所述前皮辊与中皮辊之间设有控制板；所述控制板的顶部通过控制板支架连接有张力装置，网格圈绕装于所述控制板的下端面、中皮辊以及张力装置所形成的外周面，所述控制板支架可转动地安装于所述中皮辊的中芯轴上；所述控制板的下端面与曲线管的上端面形成相互配合的嵌合结构，其特征在于：所述曲线管的上端面依次包括沿着所述曲线管的长度方向延伸的弧形凸起曲面段、弧形下凹槽和水平面段，所述弧形下凹槽分别与所述弧形凸起曲面段、水平面段顺滑连接，所述弧形凸起曲面段靠近所述前罗拉设置，所述水平面段靠近所述中罗拉设置；所述凸起曲面段与所述水平面段具有高度差d，并且所述凸起曲面段的高度高于所述水平面段；所述控制板的下端面依次包括沿所述控制板长度方向延伸的弧形内凹槽、弧形凸起段和端面段，所述弧形内凹槽的端部设置有控制接触端，所述弧形凸起段与弧形内凹槽、端面段顺滑连接；在工作状态，所述凸起曲面段嵌入所述弧形内凹槽，所述弧形凸起段嵌入所述弧形下凹槽，而所述水平面段与所述端面段之间形成敞口，所述控制接触端的高度低于所述凸起曲面段的高度；并且纱线从所述中钳口进入后依次与所述弧形凸起段上的网格圈、弧形凸起曲面段、控制接触端接触并从所述前钳口牵伸出。
其中，所述控制板的顶部设置有第一燕尾槽和第二燕尾槽，所述第一燕尾槽靠近所述前皮辊设置，所述第二燕尾槽靠近所述中皮辊设置，所述第一燕尾槽的横截面小于第二燕尾槽的横截面；所述控制板支架的下端部设有凸出的第一燕尾块和第二燕尾块，所述第一燕尾块装配于所述第一燕尾槽内，所述第二燕尾块装配于所述第二燕尾槽内；所述控制板支架朝向所述中皮辊的一侧端设有转动连接部，所述转动连接部套装于所述中皮辊的中芯轴上并能绕所述中芯轴转动。
其中，所述前罗拉长度方向的端部分别安装于前罗拉滑座上，所述中罗拉长度方向的两端分别安装于中罗拉滑座上；所述曲线管设置于所述前罗拉与所述中罗拉之间。所述前罗拉滑座的上部前端设置有竖直的前侧壁，所述前侧壁与所述前罗拉滑座的前壁间隔一定距离， 上部后端设置有竖直的后壁，所述前罗拉滑座的前壁固定有冲压弹簧钢片并在所述冲压弹簧钢片与所述前侧壁之间形成装配槽。所述中罗拉滑座的上部前端设置有竖直的前侧壁，所述前侧壁与所述中罗拉滑座的前壁间隔一定距离，上部后端设置有竖直的后壁，所述中罗拉滑座的前壁固定有冲压弹簧钢片并在所述冲压弹簧钢片与所述前侧壁之间形成装配槽。所述曲线管长度方向的端头嵌合在所述前罗拉滑座的后壁、中罗拉滑座的冲压弹簧钢片以及中罗拉滑座的前侧壁上并且伸入所述前罗拉滑座的后壁与中罗拉滑座的冲压弹簧钢片之间的间隙以及所述中罗拉滑座的装配槽内，所述冲压弹簧钢片的上端具有弯曲的弹装结构。曲线管采用上述装配方式不仅安装简单，而且在工作时，使得所述曲线管在高度方向上具有自动调整功能，即在纱线达到一定厚度时能够自动所述冲压弹簧钢片从而能够自身抬起所述曲线管，从而在整个操作中均能够对纱线形成有效控制，有利于保证产品质量的稳定性，并且避免曲线管的意外损坏。
其中，所述凸起曲面段与所述水平面段的高度差为0.8～1.5mm。
其中，所述弧形凸起曲面段的宽度为4.5～6.0mm，所述弧形下凹槽的宽度为15.0～16.5mm，所述水平面段的宽度d3为4.0～5.0mm。
本发明的另一方面还涉及一种细纱机，所述细纱机具有上述曲线牵伸系统。并且更进一步地，所述细纱机还具有后皮辊以及所述后皮辊相配合的后罗拉。
与现有技术相比，本发明的曲线牵伸系统以及具有该曲线牵伸系统的细纱机具有以下有益效果：
(1)通过改变控制板与控制板支架的固定方式，保证了控制板上的网格圈的同步回转，并相应设计了曲线管和控制板的曲面控制结构，使得中间摩擦控制区域向后延伸，对纱线的控制时间加长，解决了毛羽等细节的产生的问题。
(2)曲线管的端头采用冲压弹簧钢片固定赋予了曲线管在工作中在高度方向上具有自动调整功能，能够对纱线形成有效控制，有利于保证产品质量的稳定性。
附图说明
图1为本发明的曲线牵伸系统的截面结构示意图。
图2为本发明的曲线牵伸系统中曲线管与控制管的配合结构示意图。
图3为本发明的曲线牵伸系统中的曲线管的截面示意图。
图4为本发明的曲线牵伸系统中的控制板以及张力装置的装配结构示意图。
图5为本发明的曲线牵伸系统中的曲线管装配截面结构示意图。
图6为本发明的具有曲线牵伸系统的细纱机的立体结构示意图。
图7为本发明的具有曲线牵伸系统的细纱机的主视图。
图8为本发明的具有曲线牵伸系统的细纱机的截面结构示意图。
具体实施方式
以下将结合具体实施例对本发明的曲线牵伸系统做进一步的阐述，以帮助本领域的技术人员对本发明的发明构思、技术方案有更完整、准确和深入的理解。
如图1-5所示，本实施例的曲线牵伸系统包括中心轴线相互平行的前罗拉(40)和中罗拉(50)，前罗拉(40)的上部对应设置有中心轴线相互平行的前皮辊(31)，中罗拉(50)的上部对应设置有中心轴线相互平行的中皮辊(32)，所述前皮辊(31)与前罗拉(40)之间形成一前钳口，所述中皮辊(32)与中罗拉(50)之间形成一中钳口，所述前罗拉(40)与中罗拉(50)之间设置有曲线管(10)，所述前皮辊(31)与中皮辊(32)之间设有控制板(20)，所述曲线管(10)的长度方向与所述前罗拉(40)、中罗拉(50)的中心轴线相平行，所述控制板(20)的长度方向与所述曲线管(10)的长度方向平行。所述控制板(20)的顶部通过控制板支架(60)连接有张力装置(70)，网格圈(80)绕装于所述控制板(20)的下端面、中皮辊(32)以及张力装置(70)所形成的外周面，所述控制板支架(60)可转动地安装于所述中皮辊(32)的中芯轴(36)上；具体来说，所述控制板(20)的顶部设置有第一燕尾槽(24)和第二燕尾槽(25)，所述第一燕尾槽(24)靠近所述前皮辊(31)设置，所述第二燕尾槽(25)靠近所述中皮辊(32)设置，所述第一燕尾槽(24)的横截面小于第二燕尾槽(25)的横截面；所述控制板支架(60)的下端部设有凸出的第一燕尾块(61)和第二燕尾块(62)，所述第一燕尾块(61)装配于所述第一燕尾槽(24)内，所述第二燕尾块(62)装配于所述第二燕尾槽(25)内；所述控制板支架(60)朝向所述中皮辊(32)的一侧端设有转动连接部(61)，所述转动连接部(61)套装于所述中皮辊(32)的中芯轴(36)上并能绕所述中芯轴(36)转动。所述张力装置(70)包括张力座(71)、张力架(72)和张力扭簧(73)，所述张力座(71)一体成型于所述控制板支架(60)的顶部，所述张力座(71)的长度方向上的两端分 别通过张力座滚轴(74)可转动地连接张力架(72)，所述张力扭簧(73)套装在所述张力座滚轴(74)上，所述张力架(72)顶部设有与所述张力座滚轴(74)平行的张力轴(75)，所述网格圈(80)绕装于所述控制板(20)的下端面、中皮辊(32)及所述张力轴(75)所形成的外周面。在本发明中，所述曲线管(10)内和控制板(20)内均设置有磁钢(图中未示出)，利用所述磁钢来保证二者在磁力的作用下保持适当的间隙。该结构中，通过中皮辊(32)带动网格圈(80)传动，同时利用上述两个燕尾配合结构提高了张力架轴向的平整度，进一步保证了对不同须条的可靠控制，保证了控制板上的网格圈的同步回转。
在本发明中，所述控制板(20)的下端面与曲线管(10)的上端面形成相互配合的嵌合结构。曲线管(10)的上端面依次包括沿着所述曲线管(10)的长度方向延伸的弧形凸起曲面段(11)、弧形下凹槽(12)和水平面段(13)，所述弧形下凹槽(12)分别与所述弧形凸起曲面段(11)、水平面段(13)顺滑连接，所述弧形凸起曲面段(11)靠近所述前罗拉(40)设置，所述水平面段(13)靠近所述中罗拉(50)设置；所述凸起曲面段(11)与所述水平面段(13)具有高度差d，高度差d为0.8～1.5mm，并且所述凸起曲面段(11)的高度高于所述水平面段(13)；所述弧形凸起曲面段(11)的宽度d1为4.5～6.0mm，所述弧形下凹槽(12)的宽度d2为15.0～16.5mm，所述水平面段(13)的宽度d3为4.0～5.0mm。所述控制板(20)的下端面依次包括沿所述控制板(20)长度方向延伸的弧形内凹槽(21)、弧形凸起段(22)和端面段(23)，所述弧形内凹槽(21)的端部设置有控制接触端(26)，所述弧形凸起段(22)与弧形内凹槽(21)、端面段(23)顺滑连接；在工作状态，所述凸起曲面段(11)嵌入所述弧形内凹槽(21)，所述弧形凸起段(22)嵌入所述弧形下凹槽(12)，而所述水平面段(13)与所述端面段(23)之间形成敞口，所述控制接触端(24)的高度低于所述凸起曲面段(11)的高度；并且纱线(100)从所述中钳口进入后依次与所述弧形凸起段(22)上的网格圈(80)、弧形凸起曲面段(11)、控制接触端(26)接触并从所述前钳口牵伸出。在控制板上的网格圈的同步回转的前提下，通过改变DS曲线牵伸的曲面控制结构，使得中间摩擦控制区域向后延伸，对纱线的控制时间加长，解决了采用DS曲线牵伸过程中容易产生毛羽等细节的问题，另外曲线管后部粗纱进纱口降低(d＝0.8～1.5mm)后，粗纱随着罗拉的旋转进入曲线通道无障碍，保证了顺畅性。
在本发明中，所述前罗拉(40)长度方向的端部分别安装于前罗拉滑座(41)上，所述中罗拉(50)长度方向的两端分别安装于中罗拉滑座(51)上；所述曲线管(10)设置于所述前罗拉(40)与所述中罗拉(50)之间。所述前罗拉滑座(41)的上部前端设置有竖直的前侧壁(42)，所述前侧壁(42)与所述前罗拉滑座(41)的前壁(46)间隔一定距离，上部后端设置有竖直的后壁(43)，所述前罗拉滑座(41)的前壁(46)通过螺栓(47)固定有冲压弹簧钢片(45)并在所述冲压弹簧钢片(45)与所述前侧壁(42)之间形成装配槽(44)。所述中罗拉滑座(51)的上部前端设置有竖直的前侧壁(52)，所述前侧壁(52)与所述中罗拉滑座(51)的前壁(56)间隔一定距离，上部后端设置有竖直的后壁(53)，所述中罗拉滑座(51)的前壁(56)通过螺栓(57)固定有冲压弹簧钢片(55)并在所述冲压弹簧钢片(55)与所述前侧壁(52)之间形成装配槽(54)。所述曲线管(10)长度方向的端头嵌合在所述前罗拉滑座(41)的后壁(43)、中罗拉滑座(51)的冲压弹簧钢片(55)以及中罗拉滑座(51)的前侧壁(52)上并且伸入所述前罗拉滑座(41)的后壁(43)与中罗拉滑座(51)的冲压弹簧钢片(55)之间的间隙以及所述中罗拉滑座(51)的装配槽(54)内，所述冲压弹簧钢片(55)的上端具有弯曲的弹装结构。曲线管(10)采用上述装配方式不仅安装简单，而且在工作时，使得所述曲线管(10)在高度方向上具有自动调整功能，即在纱线(100)达到一定厚度时能够自动所述冲压弹簧钢片(55)从而能够自身抬起所述曲线管(10)，从而在整个操作中均能够对纱线形成有效控制，有利于保证产品质量的稳定性，并且避免曲线管的以外损坏。
图6-8示出了一种具有本发明的曲线牵伸系统的细纱机，该细纱机具有后皮辊(33)以及与所述后皮辊(33)相配合的后罗拉(90)。
对于本领域的普通技术人员而言，具体实施例只是对本发明进行了示例性描述，显然本发明具体实现并不受上述方式的限制，只要采用了本发明的方法构思和技术方案进行的各种非实质性的改进，或未经改进将本发明的构思和技术方案直接应用于其它场合的，均在本发明的保护范围之内。

Claims (10)

  1. 一种曲线牵伸系统，包括中心轴线相互平行的前罗拉(40)和中罗拉(50)，所述前罗拉(40)的上部对应设置有中心轴线相互平行的前皮辊(31)，中罗拉(50)的上部对应设置有中心轴线相互平行的中皮辊(32)，所述前皮辊(31)与前罗拉(40)之间形成一前钳口，所述中皮辊(32)与中罗拉(50)之间形成一中钳口，所述前罗拉(40)与中罗拉(50)之间设置有曲线管(10)，所述前皮辊(31)与中皮辊(32)之间设有控制板(20)；所述控制板(20)的顶部通过控制板支架(60)连接有张力装置(70)，网格圈(80)绕装于所述控制板(20)的下端面、中皮辊(32)以及张力装置(70)所形成的外周面，所述控制板支架(60)可转动地安装于所述中皮辊(32)的中芯轴(36)上；所述控制板(20)的下端面与曲线管(10)的上端面形成相互配合的嵌合结构，其特征在于：所述曲线管(10)的上端面依次包括沿着所述曲线管(10)的长度方向延伸的弧形凸起曲面段(11)、弧形下凹槽(12)和水平面段(13)，所述弧形下凹槽(12)分别与所述弧形凸起曲面段(11)、水平面段(13)顺滑连接，所述弧形凸起曲面段(11)靠近所述前罗拉(40)设置，所述水平面段(13)靠近所述中罗拉(50)设置；所述凸起曲面段(11)与所述水平面段(13)具有高度差d，并且所述凸起曲面段(11)的高度高于所述水平面段(13)；所述控制板(20)的下端面依次包括沿所述控制板(20)长度方向延伸的弧形内凹槽(21)、弧形凸起段(22)和端面段(23)，所述弧形内凹槽(21)的端部设置有控制接触端(26)，所述弧形凸起段(22)与弧形内凹槽(21)、端面段(23)顺滑连接；在工作状态，所述凸起曲面段(11)嵌入所述弧形内凹槽(21)，所述弧形凸起段(22)嵌入所述弧形下凹槽(12)，而所述水平面段(13)与所述端面段(23)之间形成敞口，所述控制接触端(24)的高度低于所述凸起曲面段(11)的高度；并且纱线(100)从所述中钳口进入后依次与所述弧形凸起段(22)上的网格圈(80)、弧形凸起曲面段(11)、控制接触端(26)接触并从所述前钳口牵伸出。
  2. 根据权利要求1所述的曲线牵伸系统，其特征在于：所述控制板(20)的顶部设置有第一燕尾槽(24)和第二燕尾槽(25)，所述第一燕尾槽(24)靠近所述前皮辊(31)设置，所述第二燕尾槽(25)靠近所述中皮辊(32)设置，所述第一燕尾槽(24)的横截面小于第二燕尾槽(25)的横截面；所述控制板支架(60)的下端部设有凸出的第一燕尾块(61)和第二燕尾块(62)，所述第一燕尾块(61)装配于所述第一燕尾槽(24)内，所述第二燕尾块(62)装配于所述第二燕尾槽(25)内；所述控制板支架(60)朝向所述中皮辊(32)的一侧端设有转动 连接部(61)，所述转动连接部(61)套装于所述中皮辊(32)的中芯轴(36)上并能绕所述中芯轴(36)转动。
  3. 根据权利要求1所述的曲线牵伸系统，其特征在于：所述曲线管(10)在高度方向上具有自动调整功能。
  4. 根据权利要求3所述的曲线牵伸系统，其特征在于：所述前罗拉(40)长度方向的端部分别安装于前罗拉滑座(41)上，所述中罗拉(50)长度方向的两端分别安装于中罗拉滑座(51)上；所述曲线管(10)设置于所述前罗拉(40)与所述中罗拉(50)之间；所述前罗拉滑座(41)的上部前端设置有竖直的前侧壁(42)，所述前侧壁(42)与所述前罗拉滑座(41)的前壁(46)间隔一定距离，上部后端设置有竖直的后壁(43)，所述前罗拉滑座(41)的前壁(46)固定有冲压弹簧钢片(45)并在所述冲压弹簧钢片(45)与所述前侧壁(42)之间形成装配槽(44)；所述中罗拉滑座(51)的上部前端设置有竖直的前侧壁(52)，所述前侧壁(52)与所述中罗拉滑座(51)的前壁(56)间隔一定距离，上部后端设置有竖直的后壁(53)，所述中罗拉滑座(51)的前壁(56)固定有冲压弹簧钢片(55)并在所述冲压弹簧钢片(55)与所述前侧壁(52)之间形成装配槽(54)；所述曲线管(10)长度方向的端头嵌合在所述前罗拉滑座(41)的后壁(43)、中罗拉滑座(51)的冲压弹簧钢片(55)以及中罗拉滑座(51)的前侧壁(52)上并且伸入所述前罗拉滑座(41)的后壁(43)与中罗拉滑座(51)的冲压弹簧钢片(55)之间的间隙以及所述中罗拉滑座(51)的装配槽(54)内，所述冲压弹簧钢片(55)的上端具有弯曲的弹装结构。
  5. 根据权利要求1-3任一项所述的曲线牵伸系统，其特征在于：所述凸起曲面段(11)与所述水平面段(13)的高度差d为0.8～1.5mm。
  6. 根据权利要求1-3任一项所述的曲线牵伸系统，其特征在于：所述弧形凸起曲面段(11)的宽度d1为4.5～6.0mm，所述弧形下凹槽(12)的宽度d2为15.0～16.5mm，所述水平面段(13)的宽度d3为4.0～5.0mm。
  7. 一种细纱机，其特征在于：所述细纱机具有权利要求1所述的曲线牵伸系统，其特征在于：所述细纱机还具有后皮辊(33)以及所述后皮辊(33)相配合的后罗拉(90)。
  8. 根据权利要求7所述的细纱机，其特征在于：所述控制板(20)的顶部设置有第一燕尾 槽(24)和第二燕尾槽(25)，所述第一燕尾槽(24)靠近所述前皮辊(31)设置，所述第二燕尾槽(25)靠近所述中皮辊(32)设置，所述第一燕尾槽(24)的横截面小于第二燕尾槽(25)的横截面；所述控制板支架(60)的下端部设有凸出的第一燕尾块(61)和第二燕尾块(62)，所述第一燕尾块(61)装配于所述第一燕尾槽(24)内，所述第二燕尾块(62)装配于所述第二燕尾槽(25)内；所述控制板支架(60)朝向所述中皮辊(32)的一侧端设有转动连接部(61)，所述转动连接部(61)套装于所述中皮辊(32)的中芯轴(36)上并能绕所述中芯轴(36)转动。
  9. 根据权利要求7所述的细纱机，其特征在于：所述曲线管(10)在高度方向上具有自动调整功能。
  10. 根据权利要求9所述的细纱机，其特征在于：所述前罗拉(40)长度方向的端部分别安装于前罗拉滑座(41)上，所述中罗拉(50)长度方向的两端分别安装于中罗拉滑座(51)上；所述曲线管(10)设置于所述前罗拉(40)与所述中罗拉(50)之间；所述前罗拉滑座(41)的上部前端设置有竖直的前侧壁(42)，所述前侧壁(42)与所述前罗拉滑座(41)的前壁(46)间隔一定距离，上部后端设置有竖直的后壁(43)，所述前罗拉滑座(41)的前壁(46)固定有冲压弹簧钢片(45)并在所述冲压弹簧钢片(45)与所述前侧壁(42)之间形成装配槽(44)；所述中罗拉滑座(51)的上部前端设置有竖直的前侧壁(52)，所述前侧壁(52)与所述中罗拉滑座(51)的前壁(56)间隔一定距离，上部后端设置有竖直的后壁(53)，所述中罗拉滑座(51)的前壁(56)固定有冲压弹簧钢片(55)并在所述冲压弹簧钢片(55)与所述前侧壁(52)之间形成装配槽(54)；所述曲线管(10)长度方向的端头嵌合在所述前罗拉滑座(41)的后壁(43)、中罗拉滑座(51)的冲压弹簧钢片(55)以及中罗拉滑座(51)的前侧壁(52)上并且伸入所述前罗拉滑座(41)的后壁(43)与中罗拉滑座(51)的冲压弹簧钢片(55)之间的间隙以及所述中罗拉滑座(51)的装配槽(54)内，所述冲压弹簧钢片(55)的上端具有弯曲的弹装结构。
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