Device for impregnating particles into a non-woven fabric

Patent metadata

Field	Value
Publication number	US-10974274-B2
Application number	US-201815988528-A
Country	US
Kind code	B2
Filing date	May 24, 2018
Priority date	May 29, 2017
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

The particle impregnating device includes a placing body for placing a nonwoven fabric having a surface on which particles are sprayed; a vibrating member which is provided above the placing body and extends in the width direction of the nonwoven fabric placed on the placing body; a vibrator which applies ultrasonic vibration to the vibrating member; a lifting mechanism which lifts up and down the vibrating member; and a moving mechanism which relatively moves the nonwoven fabric and the vibrating member in a surface direction orthogonal to the width direction of the nonwoven fabric. When the nonwoven fabric and the vibrating member are relatively moved by the moving mechanism, the vibrating member is lowered by the lifting mechanism, so that the nonwoven fabric is pressed and compressed by the vibrating member and ultrasonic vibration is applied to the vibrating member by the vibrator.

First claim

What is claimed is:

1. A particle impregnating device for impregnating particles sprayed on a surface of a nonwoven fabric into the nonwoven fabric,
the particle impregnating device comprising:
a positioner configured to receive the nonwoven fabric;
a vibration applicator positioned above the positioner and extending in a width direction of the nonwoven fabric placed on the positioner; said vibration applicator has an upper end side and a lower end side;
a curved support that has a curved bar shape having a first end and a second end, said first end is connected to the upper end side of the vibration applicator;
a vibrator that is connected to the second end of the curved support, said curved support is connected at the first end to the vibration applicator by welding or said curved support is connected at the second end to the vibrator by welding, and the vibrator is configured to apply an ultrasonic vibration to the vibration applicator via the curved support;
a vibration applicator lifter configured to move up and down the vibration applicator; and
a mover configured to move the nonwoven fabric and the vibration applicator in relation to each other in a surface direction orthogonal to the width direction of the nonwoven fabric,
wherein, when the nonwoven fabric and the vibration applicator are relatively moved by the mover, the vibration applicator, the curved support, and the vibrator are lowered by the vibration applicator lifter so that the nonwoven fabric is pressed and compressed by the vibration applicator providing a compression quantity to the nonwoven fabric, wherein the compression quantity of the nonwoven fabric is adjusted to suppress a propagation of the ultrasonic vibration to a lower face side of the nonwoven fabric and thereby suppressing the particles from falling from the nonwoven fabric when the ultrasonic vibration is applied to the vibration applicator by the vibrator and the nonwoven fabric is pressed and compressed by the vibration applicator.

2. The particle impregnating device according to claim 1 , wherein a free end side of the vibration applicator presses the nonwoven fabric in a linear contact state.

3. The particle impregnating device according to claim 2 , wherein the vibration applicator is formed in a plate shape.

4. The particle impregnating device according to claim 1 , wherein a plurality of the vibrators are provided along a longitudinal direction of the vibration applicator.

5. The particle impregnating device according to claim 2 , wherein a plurality of the vibrators are provided along a longitudinal direction of the vibration applicator.

6. The particle impregnating device according to claim 3 , wherein a plurality of the vibrators are provided along a longitudinal direction of the vibration applicator.

7. The particle impregnating device according to claim 1 , wherein the mover is a conveyor comprising the positioner.

8. The particle impregnating device according to claim 1 , wherein a feeding roller to feed out the nonwoven fabric is rotatably and liftably provided above the positioner.

9. The particle impregnating device according to claim 8 , wherein the feeding roller is lowered and rotationally driven when the vibration applicator is lowered by the vibration applicator lifter.

10. The particle impregnating device according to claim 1 , wherein the vibration applicator extends over the width direction of the nonwoven fabric placed on the positioner at least as far as an entirety of the width of the nonwoven fabric.

11. A particle impregnating method for impregnating the particles sprayed on a surface of a nonwoven fabric into the nonwoven fabric using the particle impregnating device according to claim 1 , the method comprising:
moving the nonwoven fabric and the vibration applicator relative to each other by the mover; and
lowering the vibration applicator by the vibration applicator lifter when the nonwoven fabric and the vibration applicator are relatively moved by the mover, so that the nonwoven fabric is compressed by the vibration applicator and ultrasonic vibration is applied to the vibration applicator by the vibrator.

12. The particle impregnating device according to claim 1 , wherein the device is configured to perform a dry impregnating of the particles into the nonwoven fabric.

13. The particle impregnating device according to claim 1 , wherein the device is configured to impregnate granular particles in the nonwoven fabric.

14. The particle impregnating device according to claim 1 , wherein the compression quantity is 40% to 80% of a thickness of the nonwoven fabric.

15. The particle impregnating device according to claim 1 , wherein the compression quantity is 50% to 70% of a thickness of the nonwoven fabric.

Assignees

• Toyota Boshoku Kk

Inventors

• Maehara Kazuo
• Nakajima Ryo
• Tonozuka Hiromasa

Classifications

• D06B15/00

  Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours · CPC title

• B05D1/42

  by non-rotary members · CPC title

• B06B3/00

  Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency · CPC title

• D06B13/00 Primary

  Treatment of textile materials with liquids, gases or vapours with aid of vibration · CPC title

• D06B23/04

  Carriers or supports for textile materials to be treated · CPC title