Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Spraying nozzle and spraying method

A spray head and air spray head technology, which is applied in the direction of spraying devices, liquid spraying devices, etc., can solve the problems of poor atomization effect, large pressure fluctuation, unstable powder suction state, etc., and achieve good atomization effect, small pressure fluctuation, The effect of powder absorption stability

Pending Publication Date: 2022-01-21
宁波金铭自动化设备有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the atomization effect of the existing nozzle is not good, the pressure fluctuation is large, and the powder suction state is unstable

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spraying nozzle and spraying method
  • Spraying nozzle and spraying method
  • Spraying nozzle and spraying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as Figure 1 to Figure 4 As shown, a spray nozzle includes a powder outlet pipe 4 , a valve body 1 and an air inlet nozzle 2 . The powder outlet pipe 4 is a Venturi tube, which can accurately control the gas flow.

[0023] The bottom of the valve body 1 is provided with a powder inlet hole 12, which is connected to the powder bucket through the powder inlet joint 3; the two ends of the valve body 1 are respectively provided with a main air inlet connection hole 14 and a throat hole 16, and a powder outlet pipe 4 is fixed on the throat pipe hole 16, the main air inlet connection hole 14 communicates with the powder inlet hole 12, and one side of the powder inlet hole 12 is also provided with a powder outlet hole 13, and the powder outlet hole 13 communicates with the powder outlet pipe 4, and the main inlet The air connection hole 14, the powder outlet hole 13 and the powder outlet pipe 4 are coaxially arranged.

[0024] The air inlet nozzle 2 is provided with a h...

Embodiment 2

[0030] A spraying method, the high-pressure gas sprayed by the air spray head 21 directly enters the powder outlet hole 13, and an annular airflow is formed between the end of the air spray head 21 and the powder outlet hole 13 to suck the powder or liquid into the powder outlet pipe 4 ; Adjust the negative pressure of the powder outlet hole 13 through the auxiliary air inlet connection hole 11.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electrostatic spraying device, in particular to a spraying nozzle. The spraying nozzle comprises a powder outlet pipe, a valve body and a gas inlet nozzle, a powder inlet hole is formed in the bottom of the valve body, a main gas inlet connecting hole and a throat pipe hole are formed in the two ends of the valve body respectively, the powder outlet pipe is fixed to the throat pipe hole, the main gas inlet connecting hole is in communication with the powder inlet hole, a powder outlet hole is further formed in one side of the powder inlet hole, and the powder outlet hole is in communication with the powder outlet pipe; and a gas spraying head is arranged at one end of the gas inlet nozzle, a gas spraying hole is formed in the gas spraying head, the gas spraying hole is a through hole, the gas inlet nozzle is installed on the main gas inlet connecting hole, the gas spraying head does not make contact with the bottom of the powder inlet hole, the gas spraying head is located on one side of the powder outlet hole, and the gas spraying head is opposite to the powder outlet hole and used for directly spraying high-pressure gas to the powder outlet hole. According to the spraying nozzle, the gas spraying head is arranged on the side close to the powder outlet hole, so that the high-pressure gas directly enters the powder outlet hole, stable annular airflow is formed between the gas spraying head and the powder outlet hole, powder suction is stable, pressure fluctuation is small, and the atomization effect is good.

Description

technical field [0001] The invention relates to an electrostatic spraying device, in particular to a spraying nozzle and a spraying method. Background technique [0002] The working principle of the electrostatic powder spraying method is almost the same as that of the general liquid paint electrostatic spraying method, the difference is that the powder spraying is dispersed rather than atomized. It is a coating sprayed by an electrostatic powder spray gun. While dispersing, the powder particles are negatively charged. The charged powder particles are subjected to the action of airflow (or other forces such as centrifugal force) and electrostatic attraction, and are applied to the grounded surface. On the object, it is heated to melt and solidify to form a film. Electrostatic powder spraying method is the dominant powder coating method in the field of industrial coating. Electrostatic spraying equipment consists of a spray gun, a spray cup, and a high-voltage power supply ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B05B7/14
CPCB05B7/1431
Inventor 舒东华
Owner 宁波金铭自动化设备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com