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Production process for safety helmet

A production process and technology for safety helmets, applied in the field of safety helmets, can solve problems such as low production efficiency of safety helmets, loss of injection materials, and influence on injection molding, and achieve the effects of ensuring injection molding, reducing processes, and improving production efficiency.

Active Publication Date: 2019-11-19
CHONGQING YONGAN LABOR PROTECTIVE SUPPLIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a production process for safety helmets to solve the problem that the current injection molding raw materials will be lost due to collisions during transportation, which will affect the later injection molding and lead to low production efficiency of safety helmets.

Method used

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  • Production process for safety helmet
  • Production process for safety helmet
  • Production process for safety helmet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A production process for safety helmets, comprising the following steps:

[0040] (1) Selection of polyoxymethylene raw materials: select the following raw materials in parts by weight: 70 parts of paraformaldehyde, 20 parts of dioxane, 10 parts of boron trifluoride ether;

[0041] (2) mixing of polyoxymethylene raw materials: mixing the polyoxymethylene raw materials in step (1) evenly, and reacting at a temperature of 68°C for 2.5 hours to obtain polyoxymethylene;

[0042] (3) Selection of injection molding raw materials: select the following raw materials in parts by weight: 80 parts of polyoxymethylene, 16 parts of nano-sized mica flake powder, 1 part of nano-sized magnesium aluminum oxide, and 3 parts of zinc oxide;

[0043] (4) Mixing of injection molding raw materials: It is necessary to use an injection molding device, including a machine base. The machine base is provided with a mixing mechanism, an injection machine and an injection molding mechanism connected...

Embodiment 2

[0066] Basic as attached Figure 4As shown, the structure and implementation of Embodiment 2 are basically the same as Embodiment 1, the difference is that: a cooling channel 28 is opened in the lower mold 2, and the cooling channel 28 is arranged around the lower chamber; the side wall of the lower mold 2 A fan 29 is fixedly connected thereto, and a pipeline 30 is connected between the fan 29 and the cooling channel 28 .

[0067] The specific implementation process is as follows:

[0068] The blower fan 29 is started, and the airflow generated by the blower fan 29 continues to pass through the cooling channel 28, thereby continuously cooling and cooling the injection molded part, shortening the cooling and molding time of the injection molded part.

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Abstract

The invention relates to the technical field of safety helmets, and discloses a production process for a safety helmet. The production process comprises the following steps of (1), selecting polyformaldehyde raw materials; (2), mixing the polyformaldehyde raw materials; (3), selecting injection molding raw materials; (4), mixing the injection molding raw materials; and (5), injection molding. According to the scheme, the problem that now the injection molding raw materials are lost due to collision in the transportation process, then later injection molding forming is influenced, so that the production efficiency of the safety helmet is low is mainly solved.

Description

technical field [0001] The invention relates to the technical field of safety helmets. Background technique [0002] A safety helmet refers to a hat that protects the human head from injuries caused by falling objects and other specific factors. The safety helmet consists of a cap shell, a cap lining, a chin strap and accessories. [0003] At present, safety helmets are mainly made by injection molding, and then finished by finishing in the later stage; among them, the injection molding raw materials need to be mixed with various raw materials, but the existing mixers are not effective in stirring and mixing various raw materials. There may even be piles or balls, which will directly affect the injection molding effect in the later stage; in addition, the injection molding raw materials obtained by mixing with a mixer need to be transported to the injection machine through storage tools, and the injection molding raw materials are heated and melted by the injection machine....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/18B29C45/00B29B7/74C08L59/00C08K7/00C08K3/34C08K3/22
CPCB29B7/7461B29C45/00B29C45/1866C08K3/22C08K3/34C08K7/00C08K2003/2296C08K2201/011C08L59/00
Inventor 代忠
Owner CHONGQING YONGAN LABOR PROTECTIVE SUPPLIES CO LTD