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Production process and device of polylactic acid PLA thermoformed product

A kind of production equipment, polylactic acid technology, applied in the field of polylactic acid PLA thermoforming products production technology and equipment, can solve the problem of PLA sheet thermoforming and other problems

Active Publication Date: 2012-11-21
郭军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no good targeted solution for PLA thermoforming technology. For example, the use of general-purpose thermoforming technology and equipment will lead to the inability to thermoform PLA sheets.

Method used

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  • Production process and device of polylactic acid PLA thermoformed product
  • Production process and device of polylactic acid PLA thermoformed product
  • Production process and device of polylactic acid PLA thermoformed product

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. While the invention will be described in conjunction with the preferred embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, the invention is to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.

[0022] see Figure 1 to Figure 3 As shown, the polylactic acid PLA thermoforming product production process and equipment introduced here are generally used for polylactic acid PLA products, but it should be known that the present invention can also be used for product production processes and equipment of other materials. Polylactic acid PLA thermoforming product production equipment, including a preheating block 2, a heating furnace 3, and a mold 4, a chain 6 is provided at the bottom of the he...

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Abstract

The invention discloses a production process and a device of a polylactic acid PLA thermoformed product, the device comprises a preheating block, a heating furnace and a mold, wherein a sheet feeding chain is arranged in the heating furnace, the preheating block which is matched with the sheet feeding chain is arranged at the front end of a feed inlet of the heating furnace, and the preheating block is connected with a cylinder for moving the preheating block. The production process comprises the following steps: 1) firstly placing the preheating block on a polylactic acid PLA sheet for preheating, wherein the temperature of the preheating block is 50 DEG C-80 DEG C;2)feeding the PLA sheet after preheating to the heating furnace for heating through the sheet feeding chain, wherein the furnace temperature is 170 DEG C-270 DEG C; 3)feeding the PLA sheet after heating into the mold for thermoforming; 4)obtaining the required polylactic acid PLA thermoformed product. The production process and the device have the benefits that chain teeth of the sheet feeding chain in the heating furnace can not break when being embedded in the polylactic acid PLA sheet by increasing the preheating block, thereby realizing the smooth sheet feeding process; and the polylactic acid PLA thermoformed product can be processed according to the needs by setting the temperature of the preheating block andthe temperature of the heating furnace.

Description

technical field [0001] The invention relates to a production process and equipment, more specifically, it relates to a production process and equipment for polylactic acid PLA thermoformed products. Background technique [0002] Polylactic acid (PLA) is a novel biodegradable material made from starch raw materials proposed from renewable plant resources such as corn. The starch raw material is fermented into lactic acid, which is then converted into polylactic acid through chemical synthesis. It has good biodegradability and can be completely degraded by microorganisms in nature after use, eventually producing carbon dioxide and water without polluting the environment, which is very beneficial to protecting the environment and is recognized as an environmentally friendly material. Ordinary plastics are still treated by incineration and cremation, causing a large amount of greenhouse gases to be discharged into the air, while polylactic acid plastics are buried in the soil f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C51/00B29C51/42B29K67/00
Inventor 郭军徐圣伟王智敏
Owner 郭军
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