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Equipment for preparing polylactic acid blank

A polylactic acid and embryo material technology is applied in the field of equipment for preparing polylactic acid embryo material, which can solve the problems of inability to manufacture internal fixation devices for fractures, low mechanical properties of polylactic acid, unsatisfactory bending strength and impact strength, etc., to simplify equipment. The effect of structure and work flow, good mechanical properties, and easy demoulding

Active Publication Date: 2022-01-04
河北雄安张氏丹栋新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of polylactic acid produced by the commonly used plastic molding process are low, especially the bending strength and impact strength cannot meet the needs of many occasions, and cannot be used to manufacture fracture internal fixation devices

Method used

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  • Equipment for preparing polylactic acid blank
  • Equipment for preparing polylactic acid blank
  • Equipment for preparing polylactic acid blank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1 to Figure 11 As shown, a kind of equipment for preparing polylactic acid blank material according to the present invention adopts the technical scheme of adopting a transmission device 1 with a chain transmission structure, and the transmission device 1 drives the sprocket 102 to rotate through the drive motor 101, and the transmission on the sprocket 102 cooperates with Two chains 103 are installed, and the chains 103 are located on both sides of the conveying device 1, and the two sides of the conveying device 1 are provided with positioning chute 105 at equidistant positions on the outer circle of the chains 103, and the chains 103 are fixedly connected with the embryo pressing workbench 2 at equal intervals, The embossing table 2 slides and buckles in the positioning chute 105 and can be driven circularly with the chain 103. The conveying device 1 is divided into four stations from left to right, and each station corresponds to the top position of t...

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Abstract

The invention relates to equipment for preparing a polylactic acid blank. According to the equipment, polylactic acid powder can be used as a raw material, and the polylactic acid blank is obtained through the procedures of charging, hot melting and filter pressing, forging and forming, cooling and discharging; due to the unique design of a blank pressing workbench, the blank pressing workbench can easily turn around on a conveying device and cannot be stuck, a forming mold is convenient to disassemble, different molds can be replaced according to needs, a spring structure of the forming mold is matched with an ejector block, and demolding of the formed blank is facilitated; in addition, a designed filter pressing device can effectively press non-melt materials in polylactic acid in a molten state to the bottommost part of the blank, and later treatment is facilitated; a forging and forming device can forge and press the blank, a baking oven, a hot air device, a cold air device and a spraying device are arranged, the mechanical property of the polylactic acid blank prepared through cooperation work is better, and the equipment can be widely applied to different industries; and the whole set of equipment works circularly, and higher production efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of polylactic acid blank material production, in particular to equipment for preparing polylactic acid blank material. Background technique [0002] Polylactic acid is a polymer obtained by polymerizing lactic acid as the main raw material, also known as polylactide, which belongs to the polyester family. Polylactic acid has good thermal stability and good solvent resistance, and can be processed in various ways, such as extrusion, spinning, biaxial stretching, and injection blow molding. In addition to being biodegradable, products made of polylactic acid have good biocompatibility, gloss, transparency, feel and heat resistance, and also have certain antibacterial properties, flame retardancy and UV resistance, so they are widely used , can be used as packaging materials, fibers and nonwovens, etc., mainly used in clothing (underwear, outerwear), industry (construction, agriculture, forestry, paper) and me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/16B29C43/34B29C43/52B29C43/50B29B13/02B29C43/36B29K67/00
CPCB29C43/003B29C43/16B29C43/34B29C43/52B29C43/50B29B13/022B29C43/36B29K2067/046B29C2043/3427B29C2043/503Y02P20/10
Inventor 张伟栋张伟丹张艳娟
Owner 河北雄安张氏丹栋新能源科技有限公司
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