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Automatic yarn splitting system and method on yarn carrier of three-dimensional knitting machine

A knitting machine and yarn carrier technology, which is applied in the directions of knitting, textiles and papermaking, can solve the problems of low automation ability and inability to calculate the length of carbon fiber in real time, and achieve the effect of ensuring the operation requirements.

Active Publication Date: 2022-07-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods cannot perform real-time calculation of carbon fiber length in the actual operation site, and the automation ability is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Automatic yarn splitting system and method on yarn carrier of three-dimensional knitting machine
  • Automatic yarn splitting system and method on yarn carrier of three-dimensional knitting machine
  • Automatic yarn splitting system and method on yarn carrier of three-dimensional knitting machine

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Experimental program
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Embodiment Construction

[0024] like figure 1 As shown in the figure, an automatic yarn splitting system for continuous carbon fiber winding with a specified length on the yarn carrier of a three-dimensional braiding machine includes a frame 1, a controller 2, a 1024 encoder 3, a DC motor 4, a visual measurement system 5, an active carrier Yarn bobbin 6, yarn pressing rod 7, driven yarn-carrying bobbin 8, calculation module, yarn breaking device.

[0025] The carbon fiber roll to be divided is clamped on the driven yarn carrying drum 8 through the clamping device, the carbon fiber yarn winding drum is sleeved on the active yarn carrying drum 6, and the carbon fiber is fixed on the yarn drum from the driven yarn carrying drum 8 through the yarn pressing rod 7. On, adjust the yarn pressing rod 7 to the appropriate position, so that the subsequent carbon fiber winding process is smooth and does not increase.

[0026] When the power is turned on, the DC motor rotates 4 to drive the active yarn-carrying d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses an automatic yarn splitting system and method on a yarn carrier of a three-dimensional knitting machine. The system comprises a rack, a controller, an encoder, a calculation module, a high-definition industrial camera, a direct current motor, a driving yarn carrying cylinder, a driven yarn carrying cylinder, a yarn pressing rod and a yarn breaking device. The driving yarn carrying cylinder is driven by the motor to rotate, carbon fibers to be separated are wound on the main yarn cylinder from the driven yarn carrying cylinder through the yarn pressing rod, and the encoder feeds back the number of revolutions of the motor to the controller and displays the number of revolutions of the motor on the computer. Industrial cameras arranged on the front face and the side face of the active yarn carrying barrel take pictures in real time in the winding process to obtain image information, the winding angle and the winding diameter of carbon fiber winding are obtained through image processing, the accurate length of the wound carbon fiber is obtained by combining the dimension chain tolerance distribution principle and compared with the specified length, and the winding angle is obtained. And the yarn breaking device works to complete the automatic yarn splitting process when the equal value is reached.

Description

technical field [0001] The invention relates to the field of carbon fiber length separation of yarn carriers with three-dimensional weaving technology. Background technique [0002] The carbon fiber composite material used in the three-dimensional braiding machine has structural properties, such as light weight, high temperature resistance, corrosion resistance, and good rigidity. It is necessary to divide the carbon fiber roll into 10 yarn carriers to ensure the smooth feeding of carbon fiber. Therefore, it is very meaningful to study a method of automatic yarn separation of carbon fiber with specified length. [0003] At present, the calculation methods of carbon fiber length include theoretical calculation method, weighing calculation method and experimental calculation method. The theoretical calculation method is to calculate approximately the projection of the coil on the plane. The weighing calculation method is to weigh the quality of the fabric and then calculate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04C3/14D04C3/00
CPCD04C3/14D04C3/00
Inventor 单忠德汪俊康正水孙正王尧尧马晓康
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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