PVC-based wood-plastic environment-friendly pencil and manufacturing method thereof

A pencil and wood-plastic technology, which is applied to non-propelled pencils, pen holders, printing, etc., can solve the problems of unusable wooden pencils, large wood consumption, and complicated manufacturing processes, so as to facilitate the installation and production of pencil leads High efficiency, smooth surface and uniform size

Inactive Publication Date: 2012-09-05
MEIHUA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional wooden pencil manufacturing process is very complicated, the yield rate is low, the finished product rate is low, and the wood consumption is large; and the core of the wooden pencil is easy to eclipse, causing the problem of rolling and breaking the core, which makes the whole pencil unusable. Wood-plastic composite material Uniform, easy to curl

Method used

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  • PVC-based wood-plastic environment-friendly pencil and manufacturing method thereof
  • PVC-based wood-plastic environment-friendly pencil and manufacturing method thereof
  • PVC-based wood-plastic environment-friendly pencil and manufacturing method thereof

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] like figure 1 As shown, a PVC-based wood-plastic environment-friendly pencil according to the first embodiment of the present invention includes a pencil core 1 and a pencil shaft, and is characterized in that: the pencil shaft is made by pressing two pencil halves 2, and the pencil The half body 2 is made of PVC-based wood-plastic composite material, and the pencil half body 2 is provided with a semicircular central groove 21 for installing the pencil lead 1 . figure 1 The cross-section of the pencil shaft shown is circular and not pressed together. Since the pencil half body 2 is symmetrical about the center of the pencil shaft, the pencil half body 2 is semicircular. Of course, the pencil shaft can also be oval, more triangular, For polygons such as hexagons, only the molding die needs to be replaced.

[0017] like figure 2 As shown, a kind of P...

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Abstract

The invention relates to a polyvinyl chloride (PVC)-based wood-plastic environment-friendly pencil, which comprises a pencil core and a pencil holder, and is characterized in that: the pencil holder is prepared by pressing two half pencil bodies made of a PVC-based wood-plastic composite material; and a semi-circular central slot used for accommodating the pencil core is formed on the half pencilbodies. The invention also provides a manufacturing method for the PVC-based wood-plastic environment-friendly pencil. The PVC-based wood-plastic environment-friendly pencil is reasonable in structure, a phenomenon that the pencil core is easy to break due to deformation of a wooden holder is avoided, the pencil holder is made of the PVC-based wood-plastic composite material, timber resources aresaved, the cost is low and the environment is protected.

Description

technical field [0001] The invention relates to a PVC-based wood-plastic environment-friendly pencil and a manufacturing method thereof. Background technique [0002] The annual production of pencils in the world reaches 30 billion, more than half of which come from China, with an annual output of nearly 20 billion, making it the world's largest pencil producer and exporter. China consumes nearly 1 million cubic meters of wood for wooden pencils every year. According to estimates, to produce 1 ton of wooden pencils, 18 high-quality basswood trees that are more than 10 years old need to be consumed. Calculated according to the annual output of 20 billion pencils in my country, 10 million high-quality basswood trees need to be felled, and more than 700,000 cubic meters of wood will be consumed, which is equivalent to 20,000 hectares of forest. Usually, one hectare of broad-leaved forest can consume 1,000 kilograms of carbon dioxide and release 730 kilograms of oxygen a day, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43K19/00B43K19/16B43K3/00
Inventor 杨大可
Owner MEIHUA IND
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