Novel cold flame spraying decoration device

Abstract

The invention provides a novel cold flame spraying decoration device. The device comprises a feeding mechanism, a heating mechanism, a feeding and blowing mechanism and a spraying mechanism which areconnected in sequence, an airflow sent by the feeding and blowing mechanism is divided into two paths, one path and the feeding mechanism are communicated, and the other path is communicated with thespraying mechanism. The device has the advantages that the structure is simpler, the design is more reasonable, and the spraying decoration effect is better.

Description

technical field [0001] The invention relates to the technical field of cold pyrotechnic spraying, in particular to a cold pyrotechnic spraying device for a stage. Background technique [0002] Now various stage performances mostly set off cold fireworks to heighten the atmosphere and promote the climax of performances. In terms of realizing the stage effect, it has achieved very good results. The cold pyrotechnics set off on the stage at present all use the cold pyrotechnic cylinder of disposable discharge, and the mixture of gunpowder and metal powder is packed in the cold pyrotechnic cylinder and put into ignition head device. When the cold fireworks are set off, the ignition head device is controlled by electrical connection to generate sparks to ignite the gunpowder. The high temperature generated by the combustion of gunpowder ignites the metal powder mixed with it, and the high pressure generated by the combustion of gunpowder realizes the eruption of the burning met...

AI Technical Summary

Problems solved by technology

This equipment solves the potential safety hazards of gunpowder when the traditional cold pyrotechnic tube is set off, smoke and irritating odor pollution, short eruption time, uncontrollable eruption time, non-recyclable cold pyrotechnic eductor and existing cold pyrotechnic eruption equipment. There are many disadvantages such as complex system structure, heavy equipment, poor maneuverability, high cost, etc.

[0004] CN201810670488.7 disclosed a cold pyrotechnic spraying machine on June 26, 2018, which consists of a blanking device, an electric heating mechanism, an air supply device and a spraying pipe. The metal screw feeding device in the heating mechanism adopts the negative pressure suction generated by the high-speed airflow of the air supply device. The structure is simple and the cost is low. It solves the mechanical failure caused by the easy deformation of the metal screw feeding rod at high temperature, and greatly reduces the failure of the machine. The rate of equipment maintenance is easier, but the spray machine has the following disadvantages: the ignited metal powder is easily bonded to the wall of the feeding pipe in the electric heating mechanism, and the negative pressure generated by the high-speed air flow is not enough to take away the bonded metal powder , which will easily lead to the blockage of the feeding pipe and mechanical failure

[0005] CN201721439382.3 disclosed a cold pyrotechnic eruption device and its feeding device on November 1, 2017, wherein the feeding device includes a feeding tube and a feeding roller located in the feeding tube and a feeding roller holding device, and the feeding roller of the device The radial runout is reduced and will not touch the pipe wall of the feeding pipe, which greatly reduces the noise of the equipment; the feeding roller is always concentric with the feeding pipe, and there will be no deviation from the center, and the feeding of the feeding roller is more uniform. The spraying effect of cold pyrotechnic eruption equipment is better. The disadvantage of this equipment is that it adds additional feeding devices, as well as external power and transmission devices, which increases the cost of the entire equipment and the noise and failure caused by the transmission during work.

[0006] The existing technologies all use the feeding device to replace the cold flame tube to solve the problems in the prior art, but there are at least the following problems in the prior art: the air supply and feeding structure is complicated, the cost is high; the spray effect is unstable

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