Trimming device and method for grain coated gel flashes

Abstract

The invention discloses a trimming device and method for grain coated gel flashes. The device comprises a horizontal base, the horizontal base is provided with a horizontal rotating disc used for containing a grain, one side of the horizontal rotating disc is provided with a vertical stand column capable of sliding left and right on the horizontal base, and the upper portion of the vertical stand column is provided with a knife handle assembly which is arranged in a suspended mode towards one side of the horizontal rotating disc and can slide up and down along the vertical stand column. A probe block assembly which is horizontally suspended and can measure the center height of the top of the grain is arranged in the middle of the head of the knife handle assembly, and an upper blade assembly which is horizontally suspended and is used for horizontally cutting the grain coated gel flashes is arranged on the upper surface of the head of the knife handle assembly. The lower surface of the head of the knife handle assembly is provided with a lower blade assembly which is obliquely arranged upwards and used for obliquely cutting the grain coated gel flashes. The trimming device and method are wide in grain application range and good in flash cutting effect, the grain quality is guaranteed, and meanwhile the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics charge processing, in particular to a charge-coated gel flash trimming device and a repair method thereof. Background technique [0002] A grain is a solid propellant of certain geometric shape and size, which is used to be placed in the combustion chamber of a solid rocket motor. In order to improve the mechanical properties of the propellant, the engine combustion chamber has strict requirements on the geometric dimensions of the grain. After the drug column is manufactured, it needs to be covered with a coating gel for storage. Due to the thermal expansion and contraction of the gel, after the drug column is unpacked, there will be a certain degree of gel flash around the upper surface of the drug column. In actual use, in order not to affect the overall height of the grain, it is necessary to clean the gel flash of the grain. [0003] At present, manual hand-held blades are generally us...

AI Technical Summary

Problems solved by technology

[0003] At present, manual hand-held blades are generally used to clean the gel flash in production. However, there are certain disadvantages in manual cleaning: first, the powder column is fragile and not easy to clamp; second, the height of the gel flash is small, and after solidification The hardness of the gel is high, manual removal is easy to damage the powder column, making the round edge of the powder column uneven, affecting the use of the powder column

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