Tina multi-nozzle tip hot runner system

Abstract

The invention relates to a Tina multi-nozzle tip hot runner system which is characterized by comprising a flow dividing plate, a main injection nozzle, a sliding gasket, a central gasket, a center pin, an anti-rotation pin and a hot nozzle. A plurality of runners are formed inside the hot nozzle, are branched at a flange and are finally butt-jointed with nozzle tips with the same aperture; and the effect that plastic enters the main injection nozzle from a gun barrel of an injection molding machine, the flow dividing plate for flow division, the hot nozzle for flow division, the nozzle tips and a plurality of mould cavities in sequence is realized.

Description

technical field [0001] The invention relates to a tinado tip hot runner system, in particular to a tinado tip hot runner system for small plastic products. Background technique [0002] The hot runner system for injection mold is the development direction of the injection molding industry. Compared with the cold runner, it has many advantages such as saving raw materials, improving productivity, improving product quality, and simplifying product follow-up processing. In large-scale injection molds, the hot runner system has become an essential part of it, because only the use of hot runners can effectively reduce the pressure loss, make the product forming smoother, the product quality is higher or allow ordinary injection molding Forming effectively where the process is impossible to form. [0003] At present, the structure of the hot runner system of the injection mold is mainly that the molten glue comes out of the nozzle of the injection molding machine, is diverted thr...

AI Technical Summary

Problems solved by technology

Its shortcomings and shortcomings are as follows: (1) because the hot runner plate in the existing hot runner mold has only one layer, it is impossible to carry out split operation; (2) because there is generally only one hot nozzle in the existing hot runner mold, Due to the small number of hot nozzles, the further improvement of product production efficiency is restricted

[0005] Because the above structure is easy to leak glue in the injection mold and it is inconvenient to assemble and disassemble, and the possibility of glue leakage will be increased due to wear or assembly error every time it is assembled and disassembled.

It locks the hot nozzle directly on the runner plate with screw teeth, and the needle valve drive cylinder, hot nozzle and runner plate are assembled as a whole, which greatly reduces the processing requirements for the customer's injection template. As long as the customer processes the hot nozzle sealing glue However, this structure has the following technical problems, that is, the diverter plate will drive the hot nozzle to expand laterally, that is, the hot nozzle of the entire hot runner system is easy to bend during expansion, so special materials for the hot nozzle are required. Require

In addition, the cost of this structure is more expensive, so the sales price is generally more than 20% more expensive than the traditional first structure

[0006] Corresponding to some smaller plastic products, the mold generally adopts one mold with multiple cavities, and the general hot runner cannot meet the injection molding requirements of the mold due to the limitation of its own hot nozzle size.

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