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Constant-drafting degree unwinding method and device of passive unwinding type warp beams

A technology of draft rate and warp beam, which is applied in the field of constant draft rate unwinding method and device of passive unwinding warp beam, and can solve the problems of yarn residue, different yarn draft rate, and different draft rate, etc. , to achieve the effect of compensating for the decrease of unwinding speed, simple control program and balanced drafting effect

Active Publication Date: 2020-04-21
江阴祥盛纺印机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In actual operation, due to factors such as the wear of the brake pads and the increase in the number of warp beams, the draft rate of the yarns from different warp beams on the weaving beam is often different, and finally the draft rate of the yarn on the weaving beam is different. It directly leads to the end of unwinding of a certain warp beam and more or less yarn remains on other warp beams, resulting in waste of yarn, and also causes different tensions of yarns wound on the weaving beam by each warp beam, and finally leads to fabric inconsistency. leveling problem

Method used

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  • Constant-drafting degree unwinding method and device of passive unwinding type warp beams
  • Constant-drafting degree unwinding method and device of passive unwinding type warp beams
  • Constant-drafting degree unwinding method and device of passive unwinding type warp beams

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Embodiment 1

[0032] In order to clearly explain the specific implementation process of this embodiment, this embodiment borrows the attached figure 1 and 2 Describe the specific implementation process in detail.

[0033]The constant draft rate unwinding method of the passive unwinding type warp beam includes adopting brake motors 8 corresponding to the warp beams 2 one-to-one to control the speed of each warp beam 2, and connecting each brake motor 8 to the controller 10 electrically. Sexual connection, the speed of each braking motor 8 is controlled by the controller 10, and the independent traction roller 4 is used as the driving roller to draw the yarn 3 on each warp beam 2, and the traction roller 4 is driven by the main motor 6 to rotate. The main motor 6 is electrically connected to the controller 10 and feeds back the rotation speed to the controller 10 through the second encoder 11. The controller 10 is based on the rotation speed M of the main motor 6, the transmission ratio Q be...

Embodiment 2

[0039] In order to clearly explain the specific implementation process of this embodiment, this embodiment borrows the attached image 3 and 4 Describe the specific implementation process in detail.

[0040] The constant draft rate unwinding method of the passive unwinding type warp beam includes adopting brake motors 8 corresponding to the warp beams 2 one-to-one to control the speed of each warp beam 2, and connecting each brake motor 8 to the controller 10 electrically. connected, the controller 10 controls the speed of each brake motor 8, adopts an independent traction roller 4 as a driving roller to traction the yarn 3 on each warp beam 2, and the traction roller 4 is connected with a main motor 6 , the rotating speed of main motor 6 feeds back to controller 10 through second encoder 11, adopts tension sensor 14 to carry out tension detection to the yarn sheet after each warp beam 2 merges and feeds back to controller 10, by controller 10 according to real-time tension a...

Embodiment 3

[0044] Such as figure 1 and figure 2 The shown passive unwinding warp beam constant draft rate unwinding device includes a creel 1, four warp beams 2 rotatably connected to the warp beam 1, and yarns 3 for drawing the warp beam 2 traction roller 4, the traction roller 4 is rotatably connected on the traction frame 5, the present invention has no specific restrictions on the structure of the traction frame 5, as long as the traction roller 4 can be fixed and does not interfere with the movement of the yarn, the traction roller 4 is controlled by the main motor 6 Drive and rotate, the traction frame 5 is also rotatably connected with the pressure roller 7 abutting against the traction roller 4, and the warp beam frame 1 is fixedly connected with a one-to-one correspondence with the warp beam 2, which is used to apply the pressure roller 7 to the warp beam 2. Power braking motors 8, each braking motor 8 is connected to a controller 10 through a one-to-one corresponding first en...

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Abstract

The invention relates to a constant-drafting degree unwinding method and device of passive unwinding type warp beams. The method comprises the steps of controlling the rotating speed of each warp beamby adopting brake motors corresponding to the warp beams one by one, wherein the warp beams adopt an independent traction roller and driven by a main motor, calculating the target rotating speed of the brake motors according to the rotating speed of the main motor, the transmission ratio of the main motor to the traction roller, diameters of the traction rollers, yarn drafting rate and other parameters, and finally controlling the brake motors to rotate at the target rotating speed by a controller. The device comprises a warp beam frame, warp beams, traction rollers and compression rollers, and the traction roller is driven by the main motor, the warp beam frame is fixedly connected with the brake motors corresponding to the warp beams one by one, the brake motors are connected to the controller, and the main motor is electrically connected with the controller. The rotating speed of the warp beams can be regulated and controlled in real time through the brake motors corresponding to the warp beams one by one, thereby regulating the unwinding speed of the yarn, and ensuring that drafting degrees of all unwind yarns are same.

Description

Technical field: [0001] The invention belongs to the field of textile machinery, in particular to a constant draft rate unwinding method and device for a passive unwinding warp beam Background technique: [0002] In the yarn production process, it is inevitable to involve the unwinding process of the yarn on the warp beam. Usually, the unwinding of the warp beam is passive unwinding, that is, the pulling device downstream of the warp beam pulls the yarn on the warp beam. The yarn sheet moves, and the yarn sheet pulls the warp beam to rotate. This process usually requires setting a draft rate for the yarn sheet so that the yarn has a certain tension and will not be entangled with each other. Brake pads and proportional valves are set, the proportional valve is used to apply force to the brake pads, and the brake pads are used to apply a resistance to the warp beam, so that the yarn sheet has a certain tension. [0003] Due to the limitation of the number of yarn ends on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02J1/22
CPCD02J1/227
Inventor 黄豪宇高卫东潘如如孙顺远周建王正虎章小华
Owner 江阴祥盛纺印机械制造有限公司
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