A preform mold external cooling device
An external cooling and mold technology, applied in the field of plastic molds, can solve the problems of inability to distribute the cooling gas flow, uneven cooling of the preform, and low cooling efficiency, and achieve the effects of small deformation of the preform, high utilization rate, and high cooling efficiency.
Active Publication Date: 2016-01-20
GUANG DONG XING LIAN PRECISE MACHINERY
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Problems solved by technology
At present, the design structure of the external cooling device of the preform mold cannot reasonably distribute the flow of cooling gas according to the structural characteristics of the preform.
Therefore, the external cooling device of the existing preform mold has low cooling efficiency, uneven cooling of the preform, large deformation, and high scrap rate
Method used
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Embodiment Construction
[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0026] Such as Figure 1 to Figure 2 As shown, a preform mold external cooling device includes a jacket 1 and a blowing core 2;
[0027] The outer casing 1 is a cylindrical shell with an opening at one end and a hole at the center of the other end;
[0028] The blowing core 2 includes a blowing core seat 21, a first blowing core 22 and a second blowing core 23, the first blowing core 22 and the second blowing core 23 are cylinders, the blowing core seat 21, the first blowing core 23 The lower ends of the core 22 and the second blowing core 23 are connected in turn, the diameter of the first blowing core 22 is larger than the diameter of the second blowing core 23; the blowing core seat 21 is fixed at the opening of the jacket 1 , and protrude from one end of the opening of the jacket 1, the blowin...
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The invention relates to the technical field of plastic molds, in particular to an extra-mold cooling device of a PET preform mold. The extra-mold cooling device of the PET preform mold comprises an outer sleeve and a blow core, wherein the blow core comprises a blow core base, a first blow core body and a second blow core body, the end portion of the blow core base, the end portion of the first blow core body and the end portion of the second blow core body are connected in sequence, a plurality of groups of air flow holes are formed in the first blow core body and in the second blow core body, and secondary cooling can be carried out on a thick bottleneck. According to the extra-mold cooling device of the PET preform mold, different degrees of cooling is carried out on different positions with different thicknesses of a PET preform according to the quantity of gas needed for cooling of different positions, and then the beneficial effects of high utilization rate of cooling gas, high cooling efficiency, uniform cooling of the PET preform, small deformation of the PET preform, and high yield of the PET preforms are realized.
Description
technical field [0001] The invention relates to the technical field of plastic molds, in particular to an external cooling device for a preform mold. Background technique [0002] In the design of the preform mold, the design of the preform cooling device is related to the production efficiency and quality of the preform. Therefore, the design of the cooling device is particularly important. At present, the design structure of the external cooling device of the preform mold cannot reasonably distribute the cooling gas flow rate according to the structural characteristics of the preform. Therefore, the external cooling device of the existing preform mold has low cooling efficiency, uneven cooling of the preform, large deformation and high scrap rate. Contents of the invention [0003] The object of the present invention is to provide an external cooling device for preform molds, which can cool parts of different thicknesses of preforms to different degrees according to th...
Claims
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IPC IPC(8): B29C49/64
Inventor 谢国基姜晓平董书生胡青春
Owner GUANG DONG XING LIAN PRECISE MACHINERY