Mould drying and bottle blank cooling device and blank injection system

Abstract

The invention discloses a mould drying and bottle blank cooling device and a blank injection system. The mould drying and bottle blank cooling device comprises a dew removing fan, a secondary coolingmechanism and a plurality of pipelines. An air inlet of the dew removing fan communicates with the interior of a blank injection machine locking mould of the blank injection system through the corresponding pipeline, and an air outlet of the dew removing fan communicates with an air inlet of the secondary cooling mechanism and the interior of the blank injection machine locking mould of the blankinjection system through the two corresponding pipelines correspondingly so as to discharge dry cold air into the blank injection machine locking mould; and an air outlet of the secondary cooling mechanism communicates with the interior of a manipulator of the blank injection system through the corresponding pipeline so as to discharge the dry cold air into the manipulator. According to the moulddrying and bottle blank cooling device, energy consumption of the dew removing fan is reduced greatly, and the temperature of a mould inside the blank injection machine locking mould can be decreased,it is ensured that the mould does not dew, the surface temperature of a bottle blank inside the manipulator is decreased rapidly, and it is ensured that the manipulator does not dew.

Description

technical field [0001] The invention relates to the technical field of preform manufacturing, in particular to a mold drying and preform cooling device and preform injection system. Background technique [0002] At present, with the development of industrial technology, the competition between domestic and foreign food and beverage manufacturers is becoming increasingly fierce, and there are higher requirements for the stability, efficiency and energy consumption of PET preform injection equipment. The core of high efficiency is reflected in the faster and faster product molding cycle. However, the faster molding cycle will inevitably lead to a reduction in the cooling time of the product in the mold, which will lead to an increase in the temperature of the preform out of the mold. In the PET injection molding industry, high preform temperature is a serious technical problem, which will mainly lead to the following problems: 1. It will cause stress that cannot be removed in ...

AI Technical Summary

Problems solved by technology

The core of high efficiency is reflected in the faster and faster product molding cycle. However, the faster molding cycle will inevitably lead to a reduction in the cooling time of the product in the mold, which will lead to an increase in the temperature of the preform out of the mold.

In the PET injection molding industry, high preform temperature is a serious technical problem, which will mainly lead to the following problems: 1. It will cause stress that cannot be removed in time and affect the use of back-end blowing; 2. Preforms are packed at high temperature, and preforms The preform body is extruded and deformed, which affects the appearance and size parameters of the product; 3. The temperature of the preform is high, and after extrusion, the bottle mouth is easily deformed or even chipped, which affects the sealing of the product

[0003] However, the existing preform injection equipment has the following problems: in order to speed up the cooling of the preform, it is common practice to lower the temperature of the mold cooling water and introduce frozen water at about 10 to 12 degrees Celsius to accelerate the forming and cooling of the preform. The cooling manipulator outside the mold at the station uses the same chilled water to cool the outer surface of the preform

However, with the enlargement of the machine, the increase in the number of mold cavities, the increase in the space inside the sheet metal of the machine, and the poorer sealing performance compared to the small machine, all greatly increase the energy consumption of the dew machine.

The further shortening of the cycle will directly lead to an increase in the embryo temperature of the preform.

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