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Plastic-coated automatic powder feeding device for large-diameter steel pipes

A powder feeding device and large-diameter technology are applied in the field of automatic powder feeding devices for inner coating of steel pipes, which can solve problems such as low efficiency

Active Publication Date: 2019-05-14
高密天一机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The second is to directly use the method of spray gun spraying, but the efficiency of this method is low

Method used

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  • Plastic-coated automatic powder feeding device for large-diameter steel pipes
  • Plastic-coated automatic powder feeding device for large-diameter steel pipes
  • Plastic-coated automatic powder feeding device for large-diameter steel pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] combine figure 1 , figure 2 , Figure 6 as well as Figure 7 As shown, a large-diameter steel pipe plastic coating equipment includes an underframe 10, and the underframe 10 is provided with a steel pipe rotating device 1. There are two sets of steel pipe rotating devices 1 for supporting both ends of the steel pipe 9. Each group of steel pipe rotating devices 1 includes a support seat 105, which is installed on the chassis 10. The support seat 105 is rotatably mounted with at least two side-by-side The rollers 103, at least one roller 103 is a driving roller 103 driven by a motor 104.

[0031] Anti-slip teeth 109 are provided on the outer peripheral surface of the roller 103, and grooves for accommodating plastic powder are provided between adjacent anti-slip teeth 109. When the steel pipe 9 is coated with plastic, the temperature is generally about 280°C to 320°C. When the steel pipe 9 is in contact with the roller 103, the plastic powder on the outer surface of ...

Embodiment 2

[0046] combine Figure 8As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that there are two turning shafts 21 and two turning hoppers 22 , and one turning shaft 21 is fixedly connected to one turning hopper 22 . The overturn driving device includes two gears 25, and the two gears 25 are connected to the two turning shafts 21 respectively. The rack 24 is slidably installed on the base and meshes with two gears 25 respectively, and the cylinder 23 is connected between the rack 24 and the base. In this embodiment, one cylinder 23 can be used to control the turning of two turning hoppers 22 , and it is possible to carry out internal plastic coating for two steel pipes 9 at the same time.

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Abstract

The invention discloses an automatic powder feeding device for inner surface plastic-coating of a large-caliber steel pipe. The automatic powder feeding device comprises a base, wherein a turnover shaft is rotatably mounted on the base; one end of the turnover shaft is connected to a turnover drive device; and the other end of the turnover shaft is fixedly connected to a turnover hopper. On the premise of uniform plastic-coating, inner surface plastic-coating efficiency of the steel pipe is improved.

Description

technical field [0001] The invention relates to the technical field of steel pipe plastic coating equipment, in particular to an automatic powder feeding device for steel pipe inner coating. Background technique [0002] The inner and outer plastic-coated steel pipes are made by melting a layer of polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy (EP) powder, non-toxic polypropylene (PP) or non-toxic polyvinyl chloride (PVC) on the steel pipe wall. ) and other organic substances, the plastic-coated steel pipe not only has the advantages of high strength, easy connection, water impact resistance, etc., but also overcomes the corrosion, pollution, scaling and low strength of the plastic pipe , poor fire performance and other shortcomings. [0003] Large-diameter steel pipes generally refer to steel pipes with a nozzle diameter of 300mm to 2400mm, which can be coated with plastic coatings with different properties such as polyvinyl chloride (PVC), polyethyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G65/23
CPCB65G65/23
Inventor 罗峰邓志昌罗旭成刘京都杨长松
Owner 高密天一机械科技有限公司
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