WO2022165976A1 - 横机中的可调罗拉机构 - Google Patents

横机中的可调罗拉机构 Download PDF

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Publication number
WO2022165976A1
WO2022165976A1 PCT/CN2021/085449 CN2021085449W WO2022165976A1 WO 2022165976 A1 WO2022165976 A1 WO 2022165976A1 CN 2021085449 W CN2021085449 W CN 2021085449W WO 2022165976 A1 WO2022165976 A1 WO 2022165976A1
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Prior art keywords
friction plate
groove
main body
rod
bracket
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PCT/CN2021/085449
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English (en)
French (fr)
Inventor
朱信忠
孙平范
徐卫东
李立军
胡跃勇
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宁波慈星股份有限公司
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Publication of WO2022165976A1 publication Critical patent/WO2022165976A1/zh

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products
    • D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products
    • D04B15/92—Take-up or draw-off devices for knitting products pneumatic

Definitions

  • the invention belongs to the technical field of knitting machinery, in particular to an adjustable roller mechanism in a flat knitting machine.
  • the roller mechanism is a necessary device for pulling the fabric in the flat knitting machine, and the roller needs to have a good ability to grasp the fabric.
  • the roller mechanism consists of two front and rear roller assemblies.
  • the existing roller assembly includes a driving rod 1, a bracket 2, a driven rod 3 and a transmission belt 4.
  • the driving rod 1 and the driven rod 3 are located in the bracket 2 respectively.
  • the upper and lower ends of the bracket are in contact with the upper and lower surfaces of the bracket, and the transmission belt 4 is wrapped around the outside of the assembly composed of the active rod, the bracket and the driven rod.
  • the active rods of the front and rear roller assemblies are respectively connected with the two synchronous reverse output shafts of the reducer. During operation, the active rods of the front and rear roller assemblies rotate towards each other, pulling the fabric 9 between the front and rear roller assemblies down. .
  • the center distance between the active rod and the passive rod is fixed, and the outer transmission belt is a rubber piece, which is tightly wrapped on the outside of the assembly composed of the active rod, the bracket and the driven rod.
  • the pulling force corresponds to the friction force between the active rod and the bracket, and the friction force depends on the elastic force after the transmission belt is wrapped, but the rubber parts will expand and contract with heat, which makes the elastic force of the transmission belt different.
  • the friction between the rollers is unstable, resulting in unstable pulling force, which causes the fabric to have different tensions and affects the quality of the fabric.
  • different pulling force will be required, and the personalized pulling force will make the fabric more beautiful.
  • the purpose of the present invention is to solve the above problems, and to provide a roller mechanism that can adjust the center distance between the driving rod and the driven rod, so that the pulling force of the fabric can be adjusted.
  • the adjustable roller mechanism in the flat knitting machine includes a driving rod, a roller support, a driven rod and a transmission belt, and the driving rod and the driven rod are respectively located at the upper and lower ends of the roller support, and the transmission belt Wrapped on the outside of the assembly composed of the active rod, the roller bracket and the driven rod;
  • the roller support includes an upper friction sheet, a support body and a lower friction sheet, the upper and lower ends of the support body are respectively provided with an upper groove and a lower groove, and the upper friction sheet is placed between the driven rod and the upper groove;
  • the inside of the bracket body is a hollow structure with a built-in air bag, the lower groove groove surface of the bracket body is provided with a through hole, the lower friction plate is placed between the active rod and the lower groove, and the lower friction plate is provided with a side facing the bracket body.
  • the boss is placed in the through hole of the lower groove of the bracket body, and can slide up and down relative to the through hole, and the boss abuts the airbag in the bracket body.
  • the lower groove groove surface of the bracket body is provided with a plurality of through holes
  • the lower friction plate is divided into a multi-section structure, and the number of the lower friction plate and the through holes is the same; each section of the lower friction plate has a boss, and the boss is One-to-one correspondence with the positions of the through holes, and can slide up and down in the through holes.
  • an airbag is placed inside the main body of the bracket, the boss of the lower friction sheet extends into the main body of the bracket, and the upper surface of the boss is in contact with the surface of the airbag.
  • the end of the airbag is connected with an inflator.
  • the airbag will deform, so as to give a downward force to the lower friction plate, so that the lower friction plate slides down, thereby changing the gap between the active rod and the driven rod.
  • the friction force between the lower friction plate and the driving rod increases, and finally the pulling force of the transmission belt is changed.
  • the size of the pulling force can be adjusted by the air pressure.
  • the invention overcomes uncertain factors such as thermal expansion and contraction caused by the transmission belt, and stabilizes the transmission belt. the wrapping force, thereby stabilizing the pulling force on the fabric. Different fabric materials and tissue differences can be adjusted by air pressure to obtain the best pulling force, making the fabric more beautiful.
  • Fig. 1 is the roller structure schematic diagram of prior art
  • Fig. 2 is the structural representation of the present invention
  • Fig. 3 is the exploded view of internal parts of the present invention.
  • Fig. 4 is a partial enlarged view of Fig. 3;
  • Figure 5 is a schematic diagram of the roller operation of the present invention.
  • the adjustable roller mechanism described in this embodiment includes an active rod 1, a roller bracket, a driven rod 3 and a transmission belt 4.
  • the active rod 1 and the driven rod 3 are respectively located at the upper and lower ends of the roller bracket, and the transmission belt 4 is wrapped in The outer side of the assembly composed of the driving rod, the roller bracket and the driven rod.
  • the roller bracket includes an upper friction plate 5, a bracket main body 6 and a lower friction plate 7.
  • the upper friction plate and the lower friction plate are made of wear-resistant materials.
  • the upper and lower ends of the bracket main body 6 are respectively provided with an upper groove 61 and a lower groove. 62.
  • the upper friction plate 5 is placed between the driven rod 1 and the upper groove 61 of the bracket body; the bracket body 6 has a hollow structure inside, and an airbag 8 is arranged inside the bracket body.
  • the airbag is connected by an inflator, which can make the airbag The air is deformed.
  • the groove surface of the lower groove 62 of the bracket body is provided with a plurality of through holes 63.
  • the lower friction plate 7 is placed between the driving rod 1 and the lower groove 62.
  • the lower friction plate is divided into multi-segment structures, and each lower friction plate faces the bracket body. Both sides are provided with bosses 71.
  • the bosses 71 are placed in the through holes 63 of the lower grooves of the bracket body and can slide up and down relative to the through holes.
  • the bosses of the lower friction plates extend into the bracket body.
  • the airbags 8 in the main body of the bracket are in contact with each other, and when the airbag is deformed, the lower friction plate will also move up and down under force.
  • the active rods of the front and rear roller assemblies are respectively connected with the two synchronous reverse output shafts of the reducer. During operation, the active rods of the front and rear roller assemblies rotate towards each other, pulling the fabric 9 between the front and rear roller assemblies down. .
  • the end of the airbag 8 is ventilated, so that the airbag is deformed, thereby giving a downward force to the lower friction plate 7, so that the lower friction plate 7 slides down, thereby changing the driving rod 1 and the driven rod. 3, the friction force between the lower friction plate 7 and the driving rod 1 increases, and finally the pulling force of the transmission belt 4 is changed.
  • the size of the pulling force can be adjusted by the air pressure.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

本发明公开了一种横机中的可调罗拉机构，包括主动杆、罗拉支架、从动杆和传输带，传输带包裹在主动杆、罗拉支架和从动杆构成的组件外侧；所述罗拉支架包括上摩擦片、支架主体和下摩擦片，支架主体上下端分别设有上凹槽和下凹槽，上摩擦片置于从动杆和上凹槽之间；所述支架主体内部为中空结构，内置一气囊，支架主体的下凹槽槽面设有通孔，下摩擦片置于主动杆和下凹槽之间，下摩擦片朝向支架主体一侧设有凸台，凸台置于支架主体下凹槽的通孔内，并可相对通孔上下滑动，凸台与支架主体内的气囊相抵接。本发明利用气压使主动杆和从动杆之间的中心距由固定改成弹性可调，稳定传输带的包裹力，从而稳定对织物的牵拉力。

Description

横机中的可调罗拉机构 技术领域
本发明属于针织机械技术领域，特别涉及一种横机中的可调罗拉机构。
背景技术
罗拉机构是横机中牵拉织物的一个必备装置，罗拉需要具有良好的抓织物能力。罗拉机构由前后两个罗拉组件组成，如图1所示，现有的罗拉组件包括主动杆1、支架2、从动杆3和传输带4，主动杆1和从动杆3分别位于支架2的上下两端，与支架的上表面和下表面相接触，所述传输带4包裹在主动杆、支架和从动杆构成的组件外侧。前、后罗拉组件的主动杆分别与减速器的两个同步反向输出轴相连接，工作时，前、后罗拉组件的主动杆相向转动，将前、后罗拉组件中间的织物9牵拉下来。
现有的罗拉组件中，主动杆和被动杆之间的中心距是固定的，外层的传输带是橡胶件，紧紧地包裹在主动杆、支架和从动杆构成的组件外侧，织物牵拉力与主动杆和支架之间的摩擦力相对应，摩擦力又取决于传输带包裹后的弹力，但是橡胶件会有热胀冷缩的现象，使得传输带会有弹力差异，主动杆与罗拉之间的摩擦力不稳定，导致牵拉力不稳定，使得织物出现松紧不一的问题，影响织物的质量。同时，当织物的原料、组织的不一样时，也会要求不同的牵拉力，个性化的牵拉力会使织物更加美观。
发明内容
本发明的目的是为了解决上述问题，提供一种能够调节主动杆和从动杆之间的中心距，使得织物牵拉力可调的罗拉机构。
为此，本发明的技术方案是：横机中的可调罗拉机构，包括主动杆、罗拉支架、从动杆和传输带，主动杆和从动杆分别位于罗拉支架的上下两端，传输带包裹在主动杆、罗拉支架和从动杆构成的组件外侧；
其特征在于：所述罗拉支架包括上摩擦片、支架主体和下摩擦片，支架主体上下端分别设有上凹槽和下凹槽，上摩擦片置于从动杆和上凹槽之间；所述支架主体内部为中空结构，内置一气囊，支架主体的下凹槽槽面设有通孔，下摩擦片 置于主动杆和下凹槽之间，下摩擦片朝向支架主体一侧设有凸台，凸台置于支架主体下凹槽的通孔内，并可相对通孔上下滑动，凸台与支架主体内的气囊相抵接。
优选地，所述支架主体的下凹槽槽面设有多个通孔，下摩擦片分为多段结构，下摩擦片与通孔数量一致；每段下摩擦片上均具有一凸台，凸台与通孔位置一一对应，并可在通孔内上下滑动。
本发明在支架主体内部放置一气囊，下摩擦片的凸台伸入支架主体内部，凸台上表面与气囊表面相抵接。气囊端部连接有充气装置，当对气囊端部通气时，气囊会发生形变，从而给予下磨擦片一个向下的力，使下摩擦片往下滑动，从而改变主动杆和从动杆之间的中心距，此时下摩擦片和主动杆之间的摩擦力增大，最终改变传输带的牵拉力。牵拉力的大小可通过气压大小来调整，当气囊内的气压增大，主动杆和下摩擦片之间的摩擦力同样增大，传输带的牵拉力减小；当气囊内的气压减小，主动杆和下摩擦片之间的摩擦力同样减小，传输带的牵拉力增大。
本发明通过改变支架结构，增加气囊，利用气压使主动杆和从动杆之间的中心距由固定改成弹性可调，克服传输带带来的热胀冷缩等不确定因素，稳定传输带的包裹力，从而稳定对织物的牵拉力。不同的织物原料、组织差异，可以通过气压调整得到最佳牵拉力，使得织物可以更加美观。
附图说明
以下结合附图和本发明的实施方式来作进一步详细说明
图1为现有技术的罗拉结构示意图；
图2为本发明的结构示意图；
图3为本发明的内部零件爆炸图；
图4为图3的局部放大图；
图5为本发明的罗拉工作示意图。
图中标记为：主动杆1、支架2、从动杆3、传输带4、上摩擦片5、支架主体6、上凹槽61、下凹槽62、通孔63、下摩擦片7、凸台71、气囊8、织物9。
具体实施方式
参见附图。本实施例所述的可调罗拉机构，包括主动杆1、罗拉支架、从动杆3和传输带4，主动杆1和从动杆3分别位于罗拉支架的上下两端，传输带4 包裹在主动杆、罗拉支架和从动杆构成的组件外侧。
所述罗拉支架包括上摩擦片5、支架主体6和下摩擦片7，上摩擦片、下摩擦片均为耐磨材料制成，支架主体6上下端分别设有上凹槽61和下凹槽62，上摩擦片5置于从动杆1和支架主体的上凹槽61之间；所述支架主体6内部为中空结构，支架主体内部设有一气囊8，气囊连接由充气装置，可使气囊气发生形变。支架主体的下凹槽62槽面设有多个通孔63，下摩擦片7置于主动杆1和下凹槽62之间，下摩擦片分为多段结构，每段下摩擦片朝向支架主体一侧均设有凸台71，凸台71置于支架主体下凹槽的通孔63内，并可相对通孔上下滑动，下摩擦片的凸台伸入支架主体内部，凸台上表面与支架主体内的气囊8相抵接，当气囊发生形变，下摩擦片也会受力上下移动。
前、后罗拉组件的主动杆分别与减速器的两个同步反向输出轴相连接，工作时，前、后罗拉组件的主动杆相向转动，将前、后罗拉组件中间的织物9牵拉下来。当需要改变牵拉力时，对气囊8端部通气，使得气囊发生形变，从而给予下磨擦片7一个向下的力，使下摩擦片7往下滑动，从而改变主动杆1和从动杆3之间的中心距，此时下摩擦片7和主动杆1之间的摩擦力增大，最终改变传输带4的牵拉力。牵拉力的大小可通过气压大小来调整，当气囊8内的气压增大，主动杆1和下摩擦片7之间的摩擦力同样增大，传输带4的牵拉力减小；当气囊8内的气压减小，主动杆1和下摩擦片7之间的摩擦力同样减小，传输带4的牵拉力增大。

Claims (2)

  1. 横机中的可调罗拉机构，包括主动杆、罗拉支架、从动杆和传输带，主动杆和从动杆分别位于罗拉支架的上下两端，传输带包裹在主动杆、罗拉支架和从动杆构成的组件外侧；
    其特征在于：所述罗拉支架包括上摩擦片、支架主体和下摩擦片，支架主体上下端分别设有上凹槽和下凹槽，上摩擦片置于从动杆和上凹槽之间；所述支架主体内部为中空结构，内置一气囊，支架主体的下凹槽槽面设有通孔，下摩擦片置于主动杆和下凹槽之间，下摩擦片朝向支架主体一侧设有凸台，凸台置于支架主体下凹槽的通孔内，并可相对通孔上下滑动，与支架主体内的气囊相抵接。
  2. 如权利要求1所述的横机中的可调罗拉机构，其特征在于：所述支架主体的下凹槽槽面设有多个通孔，下摩擦片分为多段结构，下摩擦片与通孔数量一致；每段下摩擦片上均具有一凸台，凸台与通孔位置一一对应，并可在通孔内上下滑动。
PCT/CN2021/085449 2021-02-04 2021-04-02 横机中的可调罗拉机构 WO2022165976A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427117A1 (de) * 1974-06-05 1976-01-02 Stoll & Co H Warenabzugvorrichtung fuer flachstrickmaschine
CN2795248Y (zh) * 2005-05-11 2006-07-12 孙平范 针织横机柔性贴近式牵拉机构
CN202925267U (zh) * 2011-12-01 2013-05-08 株式会社岛精机制作所 编织物下卷装置
CN203475083U (zh) * 2013-09-25 2014-03-12 宁波慈星股份有限公司 针织横机中的罗拉结构
CN203890616U (zh) * 2014-03-27 2014-10-22 程芝令 一种电脑横机的高位罗拉
CN107287753A (zh) * 2017-08-14 2017-10-24 福建雄大鞋业有限公司 一种电脑横编机罗拉拉卷装置
CN207484002U (zh) * 2017-10-14 2018-06-12 中山龙族自动化科技有限公司 一种拉力可调的罗拉装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427117A1 (de) * 1974-06-05 1976-01-02 Stoll & Co H Warenabzugvorrichtung fuer flachstrickmaschine
CN2795248Y (zh) * 2005-05-11 2006-07-12 孙平范 针织横机柔性贴近式牵拉机构
CN202925267U (zh) * 2011-12-01 2013-05-08 株式会社岛精机制作所 编织物下卷装置
CN203475083U (zh) * 2013-09-25 2014-03-12 宁波慈星股份有限公司 针织横机中的罗拉结构
CN203890616U (zh) * 2014-03-27 2014-10-22 程芝令 一种电脑横机的高位罗拉
CN107287753A (zh) * 2017-08-14 2017-10-24 福建雄大鞋业有限公司 一种电脑横编机罗拉拉卷装置
CN207484002U (zh) * 2017-10-14 2018-06-12 中山龙族自动化科技有限公司 一种拉力可调的罗拉装置

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