Preparation method of comfortable copying pen holder

A pen holder and comfortable technology, applied in the direction of coating, etc., can solve the problems of easy fatigue damage of the pen holder, inconvenient copying, etc., and achieve the effects of not being easy to process, convenient for injection molding, and improving injection efficiency

Active Publication Date: 2020-02-11
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problems that it is inconvenient to copy a large number of copies for a long time, and the pen holder

Method used

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  • Preparation method of comfortable copying pen holder
  • Preparation method of comfortable copying pen holder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix EPDM rubber and 43 parts of compounding ingredients evenly, then dry the high-density polyethylene, add it to the extruder, and granulate it through the granulator. Finally, the two components are added to the barrel of the two-component double-channel injection machine. The rubber channel is 0.4 meters long and the temperature is 70 ° C. The plastic channel is 0.5 meters long and the temperature is 160 ° C. Inject into the cavity of a zigzag occlusal mold at a temperature of 150° C., and take out the molded product after the mold is closed for 8 minutes.

Embodiment 2

[0022] The difference between this embodiment and Example 1 is that in Embodiment 2, the length of the rubber flow path is 0.6 meters, the temperature is 100 ° C, the length of the plastic flow path is 0.5 meters, the temperature is 160 ° C, and the temperature is 150 ° C through injection at a 45° angle. °C mold, the mold was closed for 8 minutes.

Embodiment 3

[0024] The difference between this embodiment and Examples 1-2 is that in Embodiment 3, the length of the rubber flow path is 0.4 meters, the temperature is 70°C, the length of the plastic flow path is 0.3 meters, the temperature is 100°C, and it is injected through a 45° angle head to the temperature For 150 °C mold, mold closed for 8 min.

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Abstract

The invention discloses a preparation method of a comfortable copying pen holder. The preparation method comprises the following steps: uniformly mixing ethylene propylene diene monomer and a compounding agent, then adding high-density polyethylene resin and an auxiliary agent into a high-speed mixer, uniformly mixing, extruding and granulating, and finally adding the two materials into a double-component double-flow-channel injection machine, wherein the temperature of a rubber flow channel is 70 DEG C, the length of the rubber flow channel is 0.4m, the temperature of a plastic flow channel is 160 DEG C, the length of the plastic flow channel is 0.5 m, machine heads of the two flow channels are perpendicular to the ground and form an angle of 45 degrees downwards, the two materials are injected into a die cavity of a die with a sawtooth-shaped occlusion structure, the temperature of the die cavity is 150 DEG C, and the forming time is 8 minutes. The preparation method is simple in process and high in production efficiency, and the problems that a traditional pen holder is uncomfortable, not durable, wastes time and the like are solved. The tensile strength of the comfortable copying pen holder reaches 20.8 at least, and the wear resistance reaches 0.14cm < 3 >/1.61 km.

Description

technical field [0001] The invention relates to the field of study office stationery, in particular to a method for preparing a comfortable copying pen holder. Background technique [0002] Pen is the stationery that people use most in life. It is a kind of portable stationery. It is widely used because of its convenient use, light weight and low price, which can make people record information or leave marks on any occasion. But when a large amount of text is repeatedly written by hand, long-term writing will cause sore arms and eyes, which will make the mind dizzy and affect work efficiency. Although with the continuous advancement of technology and the continuous development of society, the printing technology that comes with computers can solve such problems well, but there are still a large number of handwriters in the society, and handwriting cannot be replaced. [0003] At present, in order to solve this problem, the most effective way is the pen holder. Most of the p...

Claims

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Application Information

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IPC IPC(8): B29C45/00B29B9/06B29C45/78C08K13/02C08K5/47C08K3/22C08K5/18C08L23/06C08L23/16
CPCB29B9/06B29C45/00B29C45/78B29C2945/76531C08K3/22C08K5/18C08K5/47C08K13/02C08K2003/2296C08L23/06C08L23/16
Inventor 武卫莉于博文陈丰雨
Owner QIQIHAR UNIVERSITY
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