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Equipment and method for producing large-size wood-plastic composite boards

A wood-plastic composite, large-size technology, applied in the field of polymer material molding and processing, can solve the problems of inability to produce large-size wood-plastic products, affecting the mechanical properties of products, poor melt fluidity, etc. The effect of high impact resistance

Active Publication Date: 2016-07-06
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor melt fluidity of wood-plastic composite materials and the limitation of the size of injection molding processing equipment, it will still face the problem of being unable to produce large-sized wood-plastic products
At the same time, after the molten material enters the storage device, the surface will cool down rapidly and be mixed with air, which will affect the mechanical properties of the product

Method used

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  • Equipment and method for producing large-size wood-plastic composite boards
  • Equipment and method for producing large-size wood-plastic composite boards
  • Equipment and method for producing large-size wood-plastic composite boards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] An equipment for producing large-scale wood-plastic composite boards, the structure of which is as follows Figure 1~4 As shown, it includes a counter-rotating conical twin-screw extruder 14, a storage barrel 17 and a molding device provided with a feeding port 141 and a feeding port 142, and the molding device includes a molding machine 2 and a hot pressing die installed on the molding machine 2 . The storage barrel 17 is provided with a plunger type piston 171, and the top of the piston 171 is connected with a two-stage oil cylinder 15, and the two-stage oil cylinder 15 is provided with a limit device 16; the bottom of the storage barrel 17 is provided with a discharge opening closing system 173, and The discharge port of the barrel 17 is connected with the feed port 1 of the molding device through the diversion barrel. The outer wall of the storage barrel 17 is provided with a heating and heat preservation device 172. The lower end surface of the storage barrel 17 is...

Embodiment 2

[0050] An equipment for producing large-scale wood-plastic composite boards, the structure of which is as follows Figure 5~6 As shown, it includes a counter-rotating conical twin-screw extruder 14 with two feeding ports, a storage tank 17 and a molding device. The molding device includes a molding machine 2 and a hot pressing mold installed on the molding machine 2 . The storage barrel 17 is provided with a plunger type piston 171, and the top of the piston 171 is connected with a double-stage oil cylinder 15, and the double-stage oil cylinder 15 is provided with a limit device 16. The bottom of the storage barrel 17 is provided with a discharge opening closing system 173, The discharge port of 17 communicates with the feed port 1 of the molding device through the diversion barrel. The outer wall of the storage barrel 17 is provided with a heating and heat preservation device 172. The lower end surface of the storage barrel 17 is a conical surface, and a 1 ~3 feeding ports; t...

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Abstract

The invention relates to equipment for producing large-size wood-plastic composite boards, belonging to the technical field of polymer material processing. The equipment comprises a material feeding device and a mould pressing device, wherein the mould pressing device comprises a mould pressing machine and a hot-pressing mould arranged on the mould pressing machine, and is provided with one to three material feeding inlets, a sliding block is embedded in a sliding channel of each material feeding inlet in a sliding way, and the outer end of each sliding block is connected with a driving device; a material feeding device is connected onto each material feeding inlet, and comprises an extrusion device and a material storage barrel, a plunger type piston is arranged in each material storage barrel, the top part of each piston is connected with a two-stage oil cylinder, a material outlet closing system is arranged at the bottom part of each material storage barrel, and the material outlet of each material storage barrel is communicated with the corresponding material feeding inlet of the mould pressing device. The extrusion device, the material storage device and the mould pressing device are integrated, and thus continuous production is realized, and a plurality of extrusion devices and material storage barrels can be arranged to supply wood-plastic melt for the mould pressing device at the same time to produce large size wood-plastics composite boards according to the requirementson sizes of boards to be produced, and the requirement of scale production is met.

Description

technical field [0001] The invention belongs to the technical field of polymer material forming and processing, and in particular relates to a device and a method for producing large-scale wood-plastic composite boards. Background technique [0002] Wood-plastic composite materials are composite materials made of wood materials and thermoplastics as the main raw materials. They have the advantages of long service life, beautiful appearance, low cost, insect-proof, anti-corrosion, sprayable, and can be processed, bonded and fixed like wood. Especially when using waste plastics and wood processing residues or straw as the main raw materials, it also has outstanding advantages in resource recycling and environmental protection. Therefore, wood-plastic composite materials are widely used in many fields, such as building materials for doors and windows, floors, walls, ship materials, fence materials, furniture materials and automotive materials. [0003] At present, wood-plastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/02B29C43/34B29C43/36B29C43/50
CPCB29C43/021B29C43/34B29C43/36B29C43/50B29C2043/3433B29C2043/503
Inventor 牛明军张丽陈金周刘凤孙伟
Owner ZHENGZHOU UNIV
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