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Spraying machine nozzle and spraying method

A spraying machine and nozzle technology, applied in the direction of spraying devices, etc., can solve the problems that the sprayed paint cannot be recycled, the sprayed paint needs to be manually cleaned, time-consuming and labor-intensive, etc., and achieve the effect of improving spraying work efficiency, reducing waste, and reducing waste of raw materials

Active Publication Date: 2022-03-04
济南万通铸造装备工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sprayed paint is sprayed onto the outer surface of the steel pipe through the nozzle of the spraying machine, and the sprayed paint is foamed on the outer surface of the steel pipe. When the sprayed paint is sprayed from the nozzle, it forms a fan shape. When the spraying starts, a part of the sprayed paint will be sprayed on the chuck of the rotary spraying car. , the sprayed paint will be foamed and formed on the chuck. After the entire steel pipe is sprayed, the foamed sprayed paint on the chuck needs to be cleaned manually, which is time-consuming and laborious. Moreover, the cleaned sprayed paint cannot be recycled, which is a serious waste

Method used

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  • Spraying machine nozzle and spraying method
  • Spraying machine nozzle and spraying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 6-7 As shown, according to the structure of the above-mentioned nozzle body 6, the flow guide groove 7 includes a clamping portion 701 on the upper edge and a forming edge 702 on the lower edge; a guide surface 703 is between the clamping portion 701 and the forming edge 702; The clamping part 701 is arc-shaped and can be clamped at the junction of the diffusion area 10 and the pressure chamber 9. The guide groove 7 can be fixed by setting a corresponding clamping structure in the nozzle body 6, or welded, riveted, etc. Any connection method is used to install the diversion groove; the forming edge 702 is straight; the diversion surface 703 is a smooth transition surface from top to bottom.

[0039] According to the structure of the diversion groove 7 described in the above-mentioned embodiment 1, the engaging portion 701 of the diversion groove 7 is set as a semicircular arc; Inside, that is, the diversion groove 7 covers more than half of the spraying...

Embodiment 2

[0041] Such as Figure 8 As shown, according to the structure of the diversion groove 7 described in Embodiment 1, the difference from Embodiment 1 is that the diversion groove 7 can also be set as an embedded block, and the contact between the diversion groove 7 and the diffusion area 10 The shape of the surface is consistent with that of the diffusion zone 10; the diversion groove 7 can be directly fixed inside the diffusion zone 10 by welding, etc., or can be connected with the diffusion zone 10 by any means such as bonding that can be fixed to the diffusion zone 10; it can be connected with the diffusion zone 10. The inner surface of the zone 10 fits seamlessly, the contact surface between the diversion groove 7 and the spraying material is an inclined plane, and the area of ​​the bottom surface of the diversion groove 7 covering the spraying port 11 is greater than half of the area of ​​the spraying port 11 .

Embodiment 3

[0043] Such as Figure 9 As shown, different from Example 1, under the spraying pressure and spraying speed conditions of the actual production process, the diversion groove 7 can also be set as a vertical diversion plane, and the diffusion effect of the paint at the spraying port 11 can be ignored. Regardless, the vertical section of the paint spray produces a right-angled trapezoidal spray shape.

[0044] A kind of spraying machine that uses above-mentioned nozzle body 6, as Figure 3-4As shown, it includes a rotary spraying vehicle 1, the rotary spraying vehicle 1 is arranged oppositely, and the number is two; the bottom wheel 2 is arranged at the bottom of each rotary spraying vehicle 1, and the walking and rotation of the rotary spraying vehicle 1 are controlled by an external control system , do not go into details here; the pipes to be sprayed are between the rotary spraying vehicles 1; the two ends of the pipes to be sprayed are installed on the rotary spraying vehicl...

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Abstract

The invention discloses a spraying machine nozzle and a spraying method, and relates to the field of heat preservation steel pipe spraying, the spraying machine nozzle comprises a nozzle body, a flow guide groove is formed in the nozzle body, and the bottom edge of the flow guide groove and a spraying opening are located on the same horizontal plane; the bottom edge of the flow guide groove is free of radian, the flow guide groove is formed in the diffusion area, the spraying shape of the spraying opening is forcibly changed, and the coating is sprayed out along the guide face of the flow guide groove after being pressurized by the pressure cavity, so that at least one side of the spraying area is linear, and the overlook section is changed into a fan-shaped area with the included angle of 180 degrees from a circular shape. The linear spraying boundary is flush with the two ends of the to-be-sprayed pipe, paint is prevented from being sprayed outside the to-be-sprayed pipe, and raw materials are saved.

Description

technical field [0001] The application relates to the field of thermal insulation steel pipe spraying, in particular to a spraying machine nozzle and a spraying method. Background technique [0002] The current intermittent type thermal insulation pipe spraying process is: the two ends of the steel pipe are fixed on the chuck of the rotary spraying vehicle, the rotary spraying vehicle controls the walking of the steel pipe, the chuck rotates with the steel pipe, and the steel pipe advances while rotating. The sprayed paint is sprayed onto the outer surface of the steel pipe through the nozzle of the spraying machine, and the sprayed paint is foamed on the outer surface of the steel pipe. When the sprayed paint is sprayed from the nozzle, it forms a fan shape. When the spraying starts, a part of the sprayed paint will be sprayed on the chuck of the rotary spraying car. , The spray paint will be foamed and formed on the chuck. After the whole steel pipe is sprayed, the spray p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B13/04
CPCB05B13/0436B05B13/0426Y02P70/10
Inventor 张万均王佃光秦玉广韩宝凯
Owner 济南万通铸造装备工程有限公司
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