Non-woven fabric melt-blowing processing method based on double-roller receiving device

A technology of receiving device and processing method, which is applied in the direction of melt spinning, nonwovens, textiles and papermaking, etc., can solve the problems affecting the processing efficiency of nonwovens, uneven thickness of nonwovens, and rotation resistance of drums, etc., and achieve saving Material, avoid condensation, increase the effect of adsorption

Pending Publication Date: 2020-09-15
李双双
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual process of this kind of receiving device, since the negative pressure generated is distributed on the outer wall of the drum circumference, the melt will be distributed on the outer wall of the drum circumference, and the melt part farther apart on the two drums It is easy to cool and condense before extrusion molding, resulting in inability to fall off, which not only causes waste of materials, but also continuously reduces the distance between the two rollers by the melt adhered to the rollers, which leads to non-woven fabrics of subsequent production with different thicknesses. Even, it will also generate resistance to the rotation of the drum, which will affect the processing efficiency of non-woven fabrics

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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  • Non-woven fabric melt-blowing processing method based on double-roller receiving device
  • Non-woven fabric melt-blowing processing method based on double-roller receiving device
  • Non-woven fabric melt-blowing processing method based on double-roller receiving device

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A non-woven fabric melt-blown processing method based on a double-drum receiving device, comprising the following steps:

[0028] S1, melt pretreatment, dry and pre-crystallize the processed raw materials, and put the dried processed raw materials into the hopper of the conveying equipment;

[0029] S2. Conveying the melt, conveying the melt in the conveying equipment to the die, and filtering through a multi-layer fine-mesh metal screen during the conveying process to remove impurities;

[0030] S3, heating the melt, heating the polymer melt to a molten state, extruding it from the spinneret hole of the die, and expanding it;

[0031] S4. Draw a thin stream of melt and cool it. When the melt is extruded from the spinneret hole, high-speed hot airflow is introduced on both sides of the die head, which can pull the fluid melt into a thin stream, and the outside of the die head is mixed with traction cooling Air flow, so that the thin flow of melt is rapidly cooled and f...

Embodiment 2

[0044] The inner bottom of the hollow mandrel 4 is embedded with a plurality of magnetic shape memory alloy strips 8, and the magnetic shape memory alloy strips 8 and the elastic pieces 5 are fixedly connected by the connecting rod 7, and the inner wall of the hollow mandrel 4 is embedded with a magnetic shape memory alloy. The alloy strip 8 is coupled to a coil 9, and the coil 9 is coupled in the power supply circuit of the drive member.

[0045] In this implementation, the elastic piece 5 will drive the connecting rod 7 to vibrate up and down continuously during the up and down vibration process, and force the magnetic shape memory alloy strip 8 to continuously deform, which can cause the internal magnetic moment arrangement of the magnetic shape memory alloy strip 8 to change, making the magnetic shape memory alloy strip 8 change. As the magnetic induction intensity of the magnetic shape memory alloy strip 8 changes continuously, the magnetic flux in the coil 9 changes conti...

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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PUM

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Abstract

The invention discloses a non-woven fabric melt-blowing processing method based on a double-roller receiving device. The non-woven fabric melt-blowing processing method comprises the following steps of S1, pretreating a melt; S2, conveying the melt; S3, heating the melt; S4, drafting the melt to form a trickle and carrying out cooling; and S5, forming a net, namely blowing the cooled and formed superfine fibers to the double-roller receiving device. The double-roller receiving device involved in the non-woven fabric melt-blowing processing method comprises a base, wherein a discharge opening is formed in the upper end of the base; the upper end of the base is fixedly connected with a pedestal; two rollers are rotationally connected to the side wall of the pedestal; and a driving componentfor driving the rollers to rotate is arranged on the pedestal. According to the non-woven fabric melt-blowing processing method disclosed by the invention, negative pressure airflow is always distributed on opposite sides of the two rollers, so that the melt is only attached to the opposite sides of the two rollers and can be rapidly extruded and formed by the rollers, the melt is prevented from being condensed on the rollers, materials are saved, and the non-woven fabric with excellent quality can be efficiently produced.

Description

technical field [0001] The invention relates to the technical field of non-woven fabric processing, in particular to a non-woven fabric melt-blown processing method based on a double-drum receiving device. Background technique [0002] In the processing technology of non-woven fabrics, the melt-blown method is a commonly used technical means, and the process flow is short, and it can process non-woven fabrics with ultra-fine fibers. [0003] After the melt blowing is completed, it is necessary to use a receiving device to collect and cool the sprayed melt. In the prior art, a double-drum receiving device is commonly used. The flow is attracted to the receiving wire outside the drum, and the melt stream is extruded by the relative rotation of the two drums. However, in the actual process of this kind of receiving device, since the negative pressure generated is distributed on the outer circumferential wall of the drum, the melt will be distributed on the outer circumferentia...

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): D04H1/56D01D5/098D01D7/00D06M10/02
CPCD01D5/0985D01D7/00D04H1/56D06M10/02
Inventor 李双双胡小丽
Owner 李双双
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