Biaxial orientation plastic tube manufacturing method and apparatus

A technology of biaxial orientation and plastic pipes, which is applied in the direction of tubular objects, other household appliances, household appliances, etc., can solve the problems that the tube blank cannot pass through, unfavorable biaxial orientation pipes, and difficult operation, so as to ensure the service life and implement Simple, uniform radial orientation effect

Inactive Publication Date: 2013-06-26
福建亚通新材料科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has serious disadvantages. The spring return control device needs to have a fixed structure to work, which will inevitably lead to the inability of the circumferentially closed tube blank to pass through, and the theoretical continuous production of biaxially oriented tubes can

Method used

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  • Biaxial orientation plastic tube manufacturing method and apparatus
  • Biaxial orientation plastic tube manufacturing method and apparatus

Examples

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Example Embodiment

[0019] figure 2 In another embodiment of the device of the present invention, the elastic magnetic block 11 is arranged on the tapered diameter expansion head, and the magnetic receiving frame 12 has the same magnetic poles as the elastic magnetic block 11, and is located in the elastic magnetic block 11. , And corresponding to the position of the elastic magnetic block 11. The molten plastic pipe material passes through the gap between the die 10 of the plastic pipe extruder and the mandrel 9 to extrude the tube blank 13, and the tube blank 13 is cooled by the first stage of vacuum shaping and cooling 2, the first tractor 3 enters the heating box 4 After being heated to a highly elastic state, the biaxially oriented plastic pipe 14 is produced by the conical expanding head 5, the second-stage vacuum shaping cooling box 6 and the second tractor 7, in which the two tractors maintain a speed ratio of 1.1 to 3.0, The speed of the second tractor 7 is greater than that of the firs...

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Abstract

The invention relates to a biaxial orientation plastic tube manufacturing method and an apparatus. The manufacturing method is characterized in that a plastic tube raw material is prepared to a plastic tube through a plastic tubing extruder, the plastic tube is heated to a high elastic state, the pipe segment in the high elastic state is performed with axial direction stretching and orientation by a tractor, and then the pipe segment in the high elastic state is performed with radial expansion. An orientation method of the radial expansion is characterized in that a taper expanding head is built in the pipe segment in the high elastic state, the pipe segment in the high elastic state of the taper expanding head can be used for realizing the circumferential orientation, the expanded pipe segment is cooled and sized to obtain the biaxial orientation tube. The manufacturing method and the apparatus can realize the stretching orientation at axial direction and circumferential direction on the plastic tubing, the mechanical properties of the plastic tube are increased, the method is simple, the manufacturing method and the apparatus can be directly used on a plastic tube production line, and are easy to be industrialized.

Description

Technical field [0001] The invention belongs to the field of polymer molding processing, in particular to a method and device for manufacturing a biaxially oriented plastic tube. Background technique [0002] The macromolecular segments of polymer materials can be oriented along the direction of the force under a certain temperature and external force, and the macromolecular segments are further arranged in an orderly manner, which greatly improves the mechanical properties of the material in the orientation direction. Under the same pipe diameter and pressure bearing capacity, the pipe wall made of materials with enhanced orientation is thinner, which can effectively save raw materials. At present, there have been literature reports on the production method and equipment of biaxially oriented plastic pipes. For example, patent 200810102889.9 discloses a process method and device for manufacturing biaxially oriented plastic pipes. The device consists of a fluid injection rod, a s...

Claims

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Application Information

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IPC IPC(8): B29C55/24B29L23/00
Inventor 陈鹊许盛光陈建福陈黎星蒋江淮吴亚平
Owner 福建亚通新材料科技股份有限公司
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