CN114808305A - 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, inlet channel and blowout passageway on the casing, the cavity communicates with inlet channel, inlet channel and blowout passageway simultaneously, and the ultrasonic driver is fixed in the cavity. Compared with the prior art, the invention atomizes the dye liquor through the ultrasonic driver, utilizes the airflow to spray the atomized dye liquor outwards along the spraying channel, and finally deposits the dye liquor on the fabric to form uniform dyeing effect.

Description

Ultrasonic atomizing coating head

technical field

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

Background technique

The currently known single-color printing and dyeing technology mainly dyes the fabric by immersing it in the dyeing solution, which consumes a lot of water and dye, and is prone to uneven dyeing of the fabric due to uneven mixing 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 the fabric by spraying to form a uniform printing and dyeing effect.

For achieving the above object, the present invention provides following scheme:

The invention discloses an ultrasonic atomization coating head, comprising:

a housing, the housing is provided with a cavity, a liquid inlet channel, an inlet channel and an ejection channel, and the cavity communicates with the liquid inlet channel, the inlet channel and the ejection channel at the same time;

An ultrasonic driver, the ultrasonic driver is fixed in the cavity.

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

Preferably, a lyophobic layer is provided on the casing, and the lyophobic layer covers at least the inner wall of the ejection channel.

Preferably, a heating device is also 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 a corrosion-resistant protective layer, and the lower surface of the piezoelectric ceramic is provided with electrodes, and the electrodes are used for It is electrically connected with the controller; the support plate is located on the lower side of the piezoelectric ceramic sheet and is fixedly connected with the piezoelectric ceramic sheet.

Preferably, the housing includes an upper cover, a lower cover and a gasket, the gasket is sandwiched between the upper cover and the lower cover, and the upper cover, the lower cover and the gasket can be The detachable fixed connection is a whole; the ejection channel is formed by splicing the upper cover and the lower cover, and a gap is provided on the gasket at the position corresponding to the ejection channel.

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

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

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 is connected with the air intake passage for temporarily accommodating air; the liquid storage chamber and The atomization chamber is located in the lower cover; the liquid storage chamber is connected with the liquid inlet channel for temporarily storing the liquid flowing into the liquid inlet channel; the atomization chamber is connected with the liquid storage chamber , the ultrasonic driver is located in the atomization chamber to atomize the liquid flowing from the liquid storage chamber; the air chamber is located on the upper side of the atomization chamber, and the ejection channel is simultaneously connected to the atomization chamber. The chamber is connected to the air chamber to eject the air together with the atomized liquid out of the ejection channel.

Preferably, a side of the air chamber close to the ejection channel has a first inclined surface, a side of the atomization chamber close to the ejection channel has a second inclined surface, and the first inclined surface is connected to the second inclined surface. The inclined surface forms an included angle at which the tip faces the ejection channel.

The present invention has achieved the following technical effects with respect to the prior art:

In the invention, the dye liquor is atomized by an ultrasonic driver, and the atomized dye liquor is sprayed out along the ejection channel by air flow, and finally deposited on the fabric to form a uniform printing and dyeing effect. Due to the spray method, the amount of dye and water is reduced.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the schematic diagram of one angle of view of the ultrasonic atomization coating head of the present embodiment;

Fig. 2 is the schematic diagram of another angle of view of the ultrasonic atomization coating head of the present embodiment;

3 is a schematic diagram of a lower cover without a heating device;

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

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

6 is a schematic diagram of an ultrasonic driver;

Fig. 7 is the schematic diagram of gasket;

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

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

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

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

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

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. Except for special instructions, the fixation in the text can be a non-removable fixation method such as welding, or a detachable fixation method such as screw locking.

Referring to FIGS. 1 to 9 , this embodiment provides an ultrasonic atomizing coating head 100 , which includes a casing and an ultrasonic driver 3 . The casing is provided with a cavity, a liquid inlet channel 5 , an inlet channel 7 and an ejection channel 11 , and the cavity communicates with the liquid inlet channel 5 , the inlet channel 7 and the ejection channel 11 at the same time. The ultrasonic driver 3 is fixed in the cavity. 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 a corrosion-resistant protective layer 21, and the lower surface of the piezoelectric ceramic is provided with Electrodes, the electrodes are used for electrical connection with 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 with the piezoelectric ceramic sheet 22 to improve the strength of the piezoelectric ceramic sheet 22 .

When the ultrasonic atomizing coating head 100 is in use, the liquid (that is, the dye solution) enters the cavity through the liquid inlet channel 5 and covers the surface of the ultrasonic driver 3, and the ultrasonic driver 3 generates high-frequency vibration to atomize the liquid on the surface into liquid. drop, while 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 out 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 ejection channel 11 is elongated.

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

As a possible example, a lyophobic layer (eg, a resin composition lyophobic layer) is provided on the casing, and the lyophobic layer covers at least the inner wall of the ejection channel 11 to improve the fluidity of the liquid. As a preferred example, the lyophobic layer covers the cavity, the liquid inlet channel 5 , the gas inlet channel 7 and the ejection channel 11 at the same time.

Referring to FIG. 9 , as a possible example, in some special cases, such as when the viscosity of the liquid is high (eg, glue), in order to improve the fluidity of the liquid, the ultrasonic atomizing coating head 100 further includes a heating device 31 (for example, a resistive heating sheet), the heating device 31 is fixed in the cavity. By heating, the viscosity of the liquid is reduced, allowing for better atomization for a more even spray on the fabric.

There are many types of housings, and those skilled in the art can choose according to the actual situation. Referring to FIGS. 1 to 5 and 7 , as a possible example, in order to adjust the width of the ejection channel 11 to accommodate dyes of different viscosities, the housing includes an upper cover 1 , a lower cover 2 and a gasket 9 , the gasket 9 is sandwiched 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 connected as a whole. The ejection channel 11 is formed by combining the upper cover 1 and the lower cover 2 , and a gap is provided on the gasket 9 at the 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 gaskets 9 with different thicknesses, which is simple and convenient.

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

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

Referring to FIGS. 3 to 5 and 9 , as a possible example, the cavity includes an air chamber 10 , a liquid storage chamber 4 and an atomization chamber 8 . The air chamber 10 is located in the upper cover 1 and connected with the air intake passage 7 for temporarily containing air. The liquid storage chamber 4 and the atomization chamber 8 are located in the lower cover 2. The liquid storage chamber 4 and the atomization chamber 8 can be separated by an overflow weir, so that the liquid in the liquid storage chamber 4 overflows into the mist after reaching a certain height. chemical chamber 8. The liquid storage chamber 4 is connected with the liquid inlet channel 5 for temporarily storing the liquid flowing into the liquid inlet channel 5 . The atomization chamber 8 is connected with the liquid storage chamber 4 , and the ultrasonic driver 3 is located in the atomization chamber 8 to atomize the liquid flowing in from the liquid storage chamber 4 . The air chamber 10 is located on the upper side of the atomization chamber 8, and the ejection channel 11 is connected with the atomization chamber 8 and the air chamber 10 at the same time, so as to eject the air together with the atomized liquid out of the ejection channel 11.

4 to 5 , as a possible example, the side of the air chamber 10 close to the ejection channel 11 has a first inclined surface, and the side of the atomization chamber 8 close to the ejection channel 11 has a second inclined surface, the first inclined surface It forms an included angle with the second inclined surface, the tip of which faces the ejection channel 11 . The first inclined surface and the second inclined surface make the cross section of the cavity shrink, which can speed up the flow rate under the condition that the flow rate remains unchanged.

Referring to FIG. 8 , as a possible example, when multiple ultrasonic atomizing coating heads 100 are used in combination (that is, any two ultrasonic atomizing coating heads 100 are relatively fixed), the ultrasonic atomizing coating heads 100 can be made to move along X The axes are arranged in rows at intervals (the interval distance is less than the length of the ultrasonic atomizing coating head 100), and the first row and the second row are arranged 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 alternately arranged. Compared with a row arranged in a continuous distribution, by adjusting the spacing distance, this arrangement can avoid the generation of missing blank areas on the X-axis when the combined structure moves along the Y-axis for coating. When the ultrasonic atomizing coating head 100 in the combined structure is detachable, a single ultrasonic atomizing coating head 100 can be cleaned and maintained, or replaced individually, thereby reducing maintenance costs.

In this specification, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. an ultrasonic atomization coating head, is characterized in that, comprises: a housing, the housing is provided with a cavity, a liquid inlet channel, an inlet channel and an ejection channel, and the cavity communicates with the liquid inlet channel, the inlet channel and the ejection channel at the same time; An ultrasonic driver, the ultrasonic driver is fixed in the cavity. 2 . The ultrasonic atomization coating head according to claim 1 , further comprising a filter, and the filter is installed at the liquid inlet channel. 3 . 3 . The ultrasonic coating head according to claim 1 , wherein a lyophobic layer is provided on the casing, and the lyophobic layer covers at least the inner wall of the ejection channel. 4 . 4 . The ultrasonic coating head according to claim 1 , further comprising a heating device, and the heating device is fixed in the cavity. 5 . 5 . The ultrasonic coating head according to claim 1 , wherein the ultrasonic driver comprises a piezoelectric ceramic sheet and a support plate; the upper surface of the piezoelectric ceramic sheet is coated with an anti-corrosion protection layer, and the The lower surface of the piezoelectric ceramic is provided with electrodes, and the electrodes are used for electrical connection with 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. 6. The ultrasonic coating head according to any one of claims 1-5, wherein the casing comprises an upper cover, a lower cover and a gasket, and the gasket is sandwiched between the upper cover and the Between the lower covers, the upper cover, the lower cover and the gasket are detachably connected as a whole; the ejection channel is formed by splicing the upper cover and the lower cover, and the gasket A notch is provided on the chip at a position corresponding to the ejection channel. 7 . The ultrasonic coating head according to claim 6 , wherein the liquid inlet channel is located on the lower cover, and the intake channel is located on the upper cover. 8 . 8 . The ultrasonic coating head according to claim 7 , wherein a liquid outlet channel is further provided on the lower cover. 9 . 9 . The ultrasonic coating head according to claim 8 , wherein the cavity comprises an air chamber, a liquid storage chamber and an atomization chamber; the air chamber is located in the upper cover and is connected to the air inlet. 10 . the liquid storage chamber and the atomizing chamber are located in the lower cover; the liquid storage chamber is connected with the liquid inlet channel for temporarily storing the inflow of the liquid inlet channel the liquid; 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 from the liquid storage chamber; the air chamber is located in the atomization chamber On the upper side of the chamber, the ejection channel is connected with the atomization chamber and the air chamber at the same time, so as to eject the air and the atomized liquid out of the ejection channel together. 10. The ultrasonic coating head according to claim 9, wherein a side of the air chamber close to the ejection channel has a first slope, and a side of the atomization chamber close to the ejection channel There is a second inclined surface, and the first inclined surface and the second inclined surface form an included angle with the tip facing the ejection channel.

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