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Device and method for removing rust corrosion of inner cavity of plastic rolling mould

A rotomolding mold and inner cavity technology, applied in cleaning methods and utensils, chemical instruments and methods, coatings, etc., can solve problems such as large pollution, impact on mold accuracy and life, achieve high cleanliness, improved surface performance, The effect of preventing re-oxidation

Active Publication Date: 2015-04-29
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to solve the problem that the traditional derusting method (chemical derusting method) in the inner cavity of metal molds has large pollution and easily affects the precision and life of the mold, and invents a fast green cleaning method (laser derusting method) that does not require chemical reagents. derusting method)

Method used

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  • Device and method for removing rust corrosion of inner cavity of plastic rolling mould
  • Device and method for removing rust corrosion of inner cavity of plastic rolling mould
  • Device and method for removing rust corrosion of inner cavity of plastic rolling mould

Examples

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Effect test

Embodiment 1

[0042] Such as Figure 1-3 shown.

[0043] A device for cleaning the inner cavity of a rotomolding mold, which includes five parts: a laser loading system, a cleaning system, a control system, a real-time feedback system, and an auxiliary system, such as figure 1 shown.

[0044] in:

[0045] The laser loading system consists of a laser controller 2 , a nanosecond laser 3 , and a bendable optical fiber 4 . The cleaning system consists of cleaning working heads 10 . Wherein, cleaning working head 10 internal structures such as figure 2 As shown, it is provided with a transmission fiber interface 1001 and a laser output channel 1006, and a beam expander input mirror 1002, a beam expander output mirror 1003 and a protective plane mirror 1004 are installed between the transmission fiber interface 1001 and the laser output channel 1006, and an inert gas The connecting port 1005 is vertically communicated with the laser output channel 1006 . After the laser beam 11 emitted...

Embodiment 2

[0052] A method for cleaning the inner cavity of rotomolding molds with a cleaning volume of 4 m 3 Take the semi-circular mold of the vertical flat-bottomed plastic storage tank (mold inner diameter D = 1600 mm, length 2000 mm, wall thickness 12 mm inner cavity corrosion as an example, the average thickness of the corrosion is 0.22 mm, and the corrosion surface area is 5.02 m 2 , the method steps are as follows:

[0053] A. Place the rotomolding mold 7 to be cleaned above the workbench 22, make its axis coincide with the Z-direction rotation axis of the workbench 22, and fasten it with the bushing fixture 17, and then use the magnetic suction seat to place the acoustic emission sensor 16 Adsorbed on the bottom surface of the working head fixture 9.

[0054] B. Position the cleaning working head 10 completely on the working head fixture 9, and then adjust the height of the working head fixture 9 so that the cleaning working head 10 points vertically to the starting po...

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Abstract

The invention relates to a device and a method for removing rust corrosion of an inner cavity of a plastic rolling mould. The device comprises a laser loading system, a cleaning system, a control system, a real-time feedback system and an auxiliary system, wherein the laser loading system is composed of a nanosecond laser device, a laser controller and a flexible optical fiber; the cleaning system is composed of a cleaning work head; the control system is composed of a computer, a reacting type stepping motor, a screw guide rail, a rotating platform and a platform controller; the control system is used for controlling the work state of the nanosecond laser device and the motion state of the rotating platform and displaying a collected acoustic signal; the real-time feedback system is composed of a signal processing board, a pre-amplifier and an acoustic emission sensor; the auxiliary system is composed of a gas conveying pipe, a gas flow meter, an adjusting valve and an inert gas source. The device provided by the invention can be used for effectively removing the rust corrosion of the inner cavity of the plastic rolling mould and increasing the forming precision of products; the mould is irradiated by the laser, so that the surface performance is improved and the cleaning is modified; two effects are achieved through one operation.

Description

technical field [0001] The invention relates to a device and method for removing rust in the inner cavity of a rotational molding mold, in particular to laser rust removal technology, and belongs to the field of laser processing and application. technical background [0002] Rotational molding is also known as rotary molding, rotary molding, etc. The process is to add plastic raw materials into the mold first, and then the mold is continuously rotated along two vertical axes and heated. The plastic raw materials in the mold are under the action of gravity and heat. Gradually and evenly coated, melted and adhered to the entire surface of the mold cavity, shaped into the desired shape, and then cooled and shaped to form a product. Compared with other molding processes, the rotational molding process has the advantages of low investment cost and easy control of product wall thickness, so it has become the preferred method for producing large and medium-sized hollow products. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00B29C41/34
CPCB08B7/0042B08B13/00
Inventor 周建忠朱涛黄舒孟宪凯盛杰周宏达高元元蒋萍
Owner JIANGSU UNIV
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