CN114808305B - Ultrasonic atomizing coating head - Google Patents

Abstract

The invention discloses an ultrasonic atomization coating head which comprises a shell and an ultrasonic driver. Wherein, be equipped with cavity, feed liquor passageway, air inlet channel and blowout passageway on the casing, the cavity communicates with feed liquor passageway, air inlet channel and blowout passageway simultaneously, and the ultrasonic actuator is fixed in the cavity. Compared with the prior art, the dyeing liquid is atomized by the ultrasonic driver, the atomized dyeing liquid is sprayed outwards along the spraying channel by utilizing the airflow, and finally, the dyeing liquid is deposited on the fabric, so that a uniform printing and dyeing effect is formed.

Description

Ultrasonic atomizing coating head

Technical Field

The invention relates to the technical field of fabric dyeing, in particular to an ultrasonic atomizing coating head.

Background technique

Currently known monochrome printing and dyeing technology mainly dyes the fabric by immersing it in dye solution. This method consumes a lot of water and dye, and is prone to uneven dyeing of the fabric due to uneven stirring of the dye.

Summary of the invention

The purpose of the present invention is to provide an ultrasonic atomizing coating head, which can deposit liquid dye on fabric by spraying to form a uniform printing and dyeing effect.

To achieve the above object, the present invention provides the following solutions:

The invention discloses an ultrasonic atomization coating head, comprising:

A shell, wherein the shell is provided with a cavity, a liquid inlet channel, an air inlet channel and a spray channel, and the cavity is communicated with the liquid inlet channel, the air inlet channel and the spray channel at the same time;

An ultrasonic driver is fixed in the cavity.

Preferably, a filter is further included, and the filter is installed at the liquid inlet channel.

Preferably, a liquid-repellent layer is provided on the shell, and the liquid-repellent layer at least covers the inner wall of the ejection channel.

Preferably, a heating device is further included, and the heating device is fixed in the cavity.

Preferably, the ultrasonic driver includes a piezoelectric ceramic sheet and a support plate; the upper surface of the piezoelectric ceramic sheet is coated with an anti-corrosion protective layer, and the lower surface of the piezoelectric ceramic is provided with an electrode, and the electrode is used to be electrically connected to the controller; the support plate is located on the lower side of the piezoelectric ceramic sheet and is fixedly connected to the piezoelectric ceramic sheet.

Preferably, the shell includes an upper cover, a lower cover and a gasket, the gasket is clamped between the upper cover and the lower cover, and the upper cover, the lower cover and the gasket are detachably fixed as a whole; the ejection channel is formed by splicing the upper cover and the lower cover, and a notch is provided on the gasket at a position corresponding to the ejection channel.

Preferably, the liquid inlet channel is located on the lower cover, and the air inlet channel is located on the upper cover.

Preferably, the lower cover is also provided with a liquid outlet channel.

Preferably, the cavity includes an air chamber, a liquid storage chamber and an atomization chamber; the air chamber is located in the upper cover and connected to the air inlet channel for temporarily accommodating air; the liquid storage chamber and the atomization chamber are located in the lower cover; the liquid storage chamber is connected to the liquid inlet channel for temporarily storing the liquid flowing into the liquid inlet channel; the atomization chamber is connected to the liquid storage chamber, and the ultrasonic driver is located in the atomization chamber to atomize the liquid flowing into the liquid storage chamber; the air chamber is located on the upper side of the atomization chamber, and the spray channel is connected to the atomization chamber and the air chamber at the same time to spray air and the atomized liquid out of the spray channel together.

Preferably, the air chamber has a first inclined surface on one side close to the ejection channel, and the atomization chamber has a second inclined surface on one side close to the ejection channel, and the first inclined surface and the second inclined surface form an angle with the tip thereof facing the ejection channel.

Compared with the prior art, the present invention has achieved the following technical effects:

The invention atomizes the dye liquid through an ultrasonic driver, and uses airflow to make the atomized dye liquid spray outward along the spray channel, and finally deposits on the fabric to form a uniform printing and dyeing effect. Due to the spraying method, the amount of dye and water used is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of an ultrasonic atomization coating head from one viewing angle of the present embodiment;

FIG2 is a schematic diagram of the ultrasonic atomization coating head of this embodiment from another viewing angle;

FIG3 is a schematic diagram of the lower cover without a heating device;

Fig. 4 is a schematic diagram of the section along line A-A of Fig. 2;

Fig. 5 is a schematic diagram of the cross section along the B-B line of Fig. 2;

FIG6 is a schematic diagram of an ultrasonic driver;

FIG7 is a schematic diagram of a gasket;

FIG8 is a schematic diagram of the combined arrangement of ultrasonic atomization coating heads;

FIG9 is a schematic diagram of a lower cover with a heating device;

Explanation of the reference numerals: 100 - ultrasonic atomizing coating head; 1 - upper cover; 2 - lower cover; 3 - ultrasonic driver; 4 - liquid storage chamber; 5 - liquid inlet channel; 6 - liquid outlet channel; 7 - air inlet channel; 8 - atomizing chamber; 9 - gasket; 10 - air chamber; 11 - spray channel; 21 - anti-corrosion protective layer; 22 - piezoelectric ceramic sheet; 23 - support plate; 31 - heating device.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

The purpose of the present invention is to provide an ultrasonic atomizing coating head, which can deposit liquid dye on fabric by spraying to form a uniform printing and dyeing effect.

In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise specified, the fixing mentioned herein may be a non-detachable fixing method such as welding, or a detachable fixing method such as screw locking.

Referring to Figures 1 to 9, this embodiment provides an ultrasonic atomization coating head 100, including a shell and an ultrasonic driver 3. Among them, the shell is provided with a cavity, a liquid inlet channel 5, an air inlet channel 7 and a spray channel 11, and the cavity is connected to the liquid inlet channel 5, the air inlet channel 7 and the spray channel 11 at the same time. The ultrasonic driver 3 is fixed in the cavity. Referring to Figure 6, as a possible example, the ultrasonic driver 3 includes a piezoelectric ceramic sheet 22 and a support plate 23, the upper surface of the piezoelectric ceramic sheet 22 is coated with an anti-corrosion protective layer 21, and the lower surface of the piezoelectric ceramic is provided with an electrode, and the electrode is used to be electrically connected to the controller. The support plate 23 (preferably a metal plate) is located on the lower side of the piezoelectric ceramic sheet 22 and is fixedly connected to the piezoelectric ceramic sheet 22 to increase the strength of the piezoelectric ceramic sheet 22.

When the ultrasonic atomizing coating head 100 is in use, the liquid (i.e., dye liquid) enters the cavity through the liquid inlet channel 5 and covers the surface of the ultrasonic driver 3. The ultrasonic driver 3 generates high-frequency vibration to atomize the liquid on its surface into droplets, and the gas enters the cavity through the air inlet channel 7. The gas and the atomized droplets are mixed together to form a mist dye, which is sprayed outward through the spray channel 11 and sprayed on the fabric to achieve the dyeing function. By making the ultrasonic driver 3 generate different ultrasonic intensities, the concentration of the sprayed mist dye can be controlled to produce different printing and dyeing effects. As a preferred example, the spray channel 11 is in the shape of a long strip.

As a possible example, the ultrasonic atomization coating head 100 further includes a filter, which is installed at the liquid inlet channel 5 to filter large particles in the liquid, thereby preventing impurities in the liquid from entering the cavity.

As a possible example, a liquid-repellent layer (e.g., a resin composition liquid-repellent layer) is provided on the shell, and the liquid-repellent layer at least covers the inner wall of the ejection channel 11 to improve the fluidity of the liquid. As a preferred example, the liquid-repellent layer covers the cavity, the liquid inlet channel 5, the air inlet channel 7, and the ejection channel 11 at the same time.

Referring to FIG9 , as a possible example, in some special cases, such as when the viscosity of the liquid is high (such as glue), in order to improve the fluidity of the liquid, the ultrasonic atomization coating head 100 further includes a heating device 31 (such as a resistive heating sheet), and the heating device 31 is fixed in the cavity. By heating, the viscosity of the liquid is reduced, so that it can be better atomized so that it can be sprayed more evenly onto the fabric.

There are many types of shells, and those skilled in the art can choose according to actual conditions. Referring to Figures 1 to 5 and 7, as a possible example, in order to facilitate the adjustment of the width of the ejection channel 11 to adapt to dyes of different viscosities, the shell includes an upper cover 1, a lower cover 2 and a gasket 9, the gasket 9 is clamped between the upper cover 1 and the lower cover 2, and the upper cover 1, the lower cover 2 and the gasket 9 are detachably fixed as a whole. The ejection channel 11 is composed of the upper cover 1 and the lower cover 2, and a notch is provided on the gasket 9 at a position corresponding to the ejection channel 11. When the width of the ejection channel 11 needs to be adjusted, it is only necessary to replace the gasket 9 of different thicknesses, which is simple and convenient.

1 to 5 and 9 , as a possible example, the liquid inlet channel 5 is located on the lower cover 2 , and the air inlet channel 7 is located on the upper cover 1 .

1 to 3 , as a possible example, a liquid outlet channel 6 is further provided on the lower cover 2 , and the liquid in the cavity can flow out through the liquid outlet channel 6 .

Referring to Figures 3 to 5 and Figure 9, as a possible example, the cavity includes an air chamber 10, a liquid storage chamber 4 and an atomizing chamber 8. The air chamber 10 is located in the upper cover 1 and is connected to the air inlet channel 7 for temporarily accommodating air. The liquid storage chamber 4 and the atomizing chamber 8 are located in the lower cover 2, and the liquid storage chamber 4 and the atomizing chamber 8 can be separated by an overflow weir so that the liquid in the liquid storage chamber 4 overflows into the atomizing chamber 8 after reaching a certain height. The liquid storage chamber 4 is connected to the liquid inlet channel 5 for temporarily storing the liquid flowing into the liquid inlet channel 5. The atomizing chamber 8 is connected to the liquid storage chamber 4, and the ultrasonic driver 3 is located in the atomizing chamber 8 to atomize the liquid flowing into the liquid storage chamber 4. The air chamber 10 is located on the upper side of the atomizing chamber 8, and the spray channel 11 is simultaneously connected to the atomizing chamber 8 and the air chamber 10 to spray the air and the atomized liquid out of the spray channel 11 together.

4 and 5, as a possible example, the air chamber 10 has a first inclined surface on one side close to the ejection channel 11, and the atomization chamber 8 has a second inclined surface on one side close to the ejection channel 11, and the first inclined surface and the second inclined surface form an angle with the tip facing the ejection channel 11. The first inclined surface and the second inclined surface make the cross section of the cavity contract, which can speed up the flow rate without changing the flow rate.

Referring to Fig. 8, as a possible example, when a plurality of ultrasonic atomizing coating heads 100 are used in combination (i.e., any two ultrasonic atomizing coating heads 100 are relatively fixed), the ultrasonic atomizing coating heads 100 can be arranged in rows along the X-axis (the spacing distance is less than the length of the ultrasonic atomizing coating heads 100), and arranged in adjacent first and second rows along the Y-axis (the Y-axis is perpendicular to the X-axis), and in the X-axis direction, the ultrasonic atomizing coating heads 100 in the first row and the ultrasonic atomizing coating heads 100 in the second row are arranged alternately. Compared with a row arranged to be continuously distributed, this arrangement can avoid the generation of omitted blank areas on the X-axis when the combined structure is moved along the Y-axis for coating by adjusting the spacing distance. When the ultrasonic atomizing coating heads 100 in the combined structure are detachable, a single ultrasonic atomizing coating head 100 can be cleaned and maintained, or replaced individually, thereby reducing maintenance costs.

The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims (6)

1. An ultrasonic atomizing applicator head, comprising:

The shell is provided with a cavity, a liquid inlet channel, an air inlet channel and an ejection channel, and the cavity is communicated with the liquid inlet channel, the air inlet channel and the ejection channel at the same time;

the ultrasonic driver is fixed in the cavity;

The shell comprises an upper cover, a lower cover and a gasket, wherein the gasket is clamped between the upper cover and the lower cover, and the upper cover, the lower cover and the gasket are detachably and fixedly connected into a whole; the ejection channel is formed by splicing the upper cover and the lower cover, and a notch is arranged on the gasket at a position corresponding to the ejection channel;

The ultrasonic atomization coating head further comprises a heating device, and the heating device is fixed in the cavity;

The cavity comprises an air chamber, a liquid storage chamber and an atomization chamber; the air chamber is positioned in the upper cover and connected with the air inlet channel, and is used for temporarily accommodating air; the liquid storage chamber and the atomizing chamber are positioned in the lower cover; the liquid storage chamber is connected with the liquid inlet channel and is used for temporarily storing liquid flowing in the liquid inlet channel; the atomization chamber is connected with the liquid storage chamber, and the ultrasonic driver is positioned in the atomization chamber so as to atomize liquid flowing in from the liquid storage chamber; the air chamber is positioned at the upper side of the atomizing chamber, and the spraying channel is connected with the atomizing chamber and the air chamber at the same time so as to spray air and atomized liquid together into the spraying channel;

The side of the air chamber, which is close to the spraying channel, is provided with a first inclined surface, the side of the atomizing chamber, which is close to the spraying channel, is provided with a second inclined surface, and the first inclined surface and the second inclined surface form an included angle of the tip towards the spraying channel.

2. The ultrasonic atomizing applicator head of claim 1, further comprising a filter mounted at said feed passage.

3. The ultrasonic atomizing applicator head of claim 1, wherein a lyophobic layer is provided on the housing, the lyophobic layer covering at least the inner wall of the discharge channel.

4. The ultrasonic atomizing applicator head of claim 1, wherein said ultrasonic driver comprises a piezoelectric ceramic plate and a support plate; the upper surface of the piezoelectric ceramic piece is coated with a corrosion-resistant protective layer, and the lower surface of the piezoelectric ceramic piece is provided with an electrode which is used for being electrically connected with a controller; the support plate is positioned at the lower side of the piezoelectric ceramic plate and fixedly connected with the piezoelectric ceramic plate.

5. The ultrasonic atomizing applicator head of claim 1, wherein said liquid inlet passage is located on said lower cover and said air inlet passage is located on said upper cover.

6. The ultrasonic atomizing applicator head as set forth in claim 5, wherein said lower cover is further provided with a liquid outlet channel.