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Constant draft rate unwinding method and device for passive unwinding warp beam

A draft rate and warp beam technology is applied in the field of constant draft rate unwinding methods and devices for passive unwinding warp beams, which can solve the problems of different yarn draft rates, different draft rates, and yarn residues. , to achieve the effect of stable operation process, balanced drafting effect and concise control program.

Active Publication Date: 2021-08-24
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 draft rate unwinding method and device for passive unwinding warp beam
  • Constant draft rate unwinding method and device for passive unwinding warp beam
  • Constant draft rate unwinding method and device for passive unwinding warp beam

Examples

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Effect test

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 draft rate unwinding method and device for passive unwinding warp beams, wherein the method includes using brake motors corresponding to warp beams one by one to control the speed of each warp beam, and using independent traction rollers And driven by the main motor, the target speed of the brake motor is calculated according to the main motor speed, the transmission ratio between the main motor and the traction roller, the diameter of the traction roller, the yarn draft rate, etc., and finally the controller controls the brake motor to The target speed is rotated. The device includes warp beam frame, warp beam, traction roller and pressure roller. The traction roller is driven by the main motor, and the brake motor corresponding to the warp beam is fixedly connected to the warp beam frame. Each brake motor is connected to a controller Above, the main motor is also electrically connected to the controller. In the present invention, the rotating speed of the warp beams is regulated in real time through braking motors corresponding to the warp beams one by one, so as to adjust the unwinding line speed of the yarns, thereby ensuring that the draft ratios of all the unwound yarns tend to be consistent.

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 Patents(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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