Polypropylene wood plastic environment-friendly pencil and manufacturing method thereof
A polypropylene and wood-plastic technology, applied in non-moving pencils, printing, writing utensils, etc., can solve problems such as unusable pencils, reduce equipment costs and labor costs, solve forest resource problems, and achieve high production efficiency.
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Embodiment 1
[0041] refer to figure 1 and figure 2 , the cross-section of the pen holder is circular, where figure 2 A male and female groove structure 2 is arranged in it.
Embodiment 2
[0043] refer to image 3 , the cross-section of the pen holder is elliptical and the splicing surface is provided with a male and female groove structure 2 for positioning and matching.
Embodiment 3
[0045] refer to Figure 4 , the cross-section of the pen holder is hexagonal and the splicing surface is provided with a positioning fit male and female groove structure 2; refer to Figure 5 , the cross-section of the pen holder is triangular and the three corners of the circumference of the pen holder are rounded to increase the comfort of the hand.
[0046] The splicing surfaces of the above-mentioned half sides are provided with male and female groove structures 2 for positioning and matching.
[0047] A semicircular refill mounting groove 3 is provided in the middle of the splicing surface of the above-mentioned half sides.
[0048] The above two half sides are made by wood-plastic extrusion molding, compression molding or injection molding.
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