Anti-residue storage cylinder structure and storage cylinder type injection molding machine

Abstract

The invention discloses an anti-residue storage cylinder structure and a storage cylinder type injection molding machine, and the anti-residue storage cylinder structure comprises a cylinder body flange, a storage cylinder body and a plunger; the cylinder body flange is provided with a material port and a first material storage part which are communicated with each other; the material storage cylinder body is connected to the cylinder body flange and is provided with a second material storage part; the plunger comprises a plunger head section and a plunger tail section which are connected with each other, the plunger head section is provided with a first flow channel, the first flow channel is communicated with the material port, a second flow channel is arranged between the plunger head section and the plunger tail section, the first flow channel is communicated with the second flow channel, the plunger head section is embedded in the material storage cylinder body, and the plunger tail section is embedded in the material storage cylinder body. The first material storage part is communicated with the second runner, and the plunger tail section is arranged on the second material storage part of the material storage cylinder body; according to the technical scheme, in the material injection process, rubber material residues between the cylinder body flange and the plunger can be reduced.

Description

technical field [0001] The invention relates to the technical field of injection molding machines, in particular to an anti-residue material storage cylinder structure and a material storage cylinder type injection molding machine. Background technique [0002] There is a certain gap and space between the plunger and the cylinder flange of the existing storage cylinder type injection molding machine, which cannot be completely eliminated, resulting in the material at the front end cannot be completely injected during injection, and the residual material at the front end of the plunger will be removed in the next material storage process. The rubber material is pushed back to the front end of the plunger. Repeatedly, the material at the front end of the plunger will remain and it will be difficult to clear the material, and the long-term retention will cause the plastic to degrade. Regular equipment maintenance is required to ensure the quality of the product. The front end fl...

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Problems solved by technology

[0002] There is a certain gap and space between the plunger and the cylinder flange of the existing storage cylinder type injection molding machine, which cannot be completely eliminated, resulting in the inability of the front end of the material to be completely ejected during injection, and the residual material at the front end of the plunger will be removed during the next storage process. The rubber material is pushed back to the front end of the plunger again. This will cause the material retention at the front end of the plunger, making it difficult to clean the material. Long-term retention will cause plastic degradation. Regular equipment maintenance is required to ensure the quality of the product. During maintenance, the front flange needs to be removed manually. It takes a lot of manpower and downtime to clean up the residual rubber material; when the production raw material is adjusted or replaced, due to the difficulty of changing the material, cleaning the original residual material needs to be washed repeatedly with a large amount of new material, and the front flange still needs to be manually removed if necessary. The residual rubber is cleaned up, and the residual rubber is difficult to clean, resulting in wasting a lot of time

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