TWI787072B - Double-split cooling channel structure for injection blow molding mold - Google Patents

Abstract

A double-split cooling water channel structure for an injection blow molding mold. Two mold cavities are set on a set of molds, and a first cooling water channel and a second cooling water channel are arranged at a predetermined position below the mold cavity. The first cooling water channel It is arranged at the lower end of the mold cavity horizontally and in an inverted V shape, and the second cooling water channel is arranged horizontally at both ends of the mold and connected obliquely to the first cooling water channel. The arrangement of the first cooling water channel and the second cooling water channel can keep the uniform temperature of the mold and control the shrinkage of the finished container in the mold cavity.

Description

Double-split cooling channel structure for injection blow molding mold

The present invention relates to the double-split cooling channel structure of the injection blow molding mould. A forward and reverse cooling channel is provided at the lower end of the mold cavity of the injection blow molding mold, so that more mold cavities can be set on the mold, and at the same time, the temperature can be effectively cooled. , Improve the water channel structure of production efficiency.

As shown in Figure 1, the current injection blow molding mold adopts a structure in which a set of molds 20 is provided with a mold cavity 21, which is what the industry calls one mold and one cavity; There is a horizontal and V-shaped cooling channel 22. The function of the cooling channel 22 is to uniformly control the temperature of the mold 20, so that every position on the mold 20 can have an even temperature, so that the shrinkage of the finished container manufactured by the mold 20 remains consistent.

However, the problem encountered by conventional injection blow molding molds is that when a plurality of container finished products need to be produced at the same time, more molds 20 must be set on the injection blow molding machine, and molds 20 need to be provided with cooling channels 22, not only The mold 20 is costly and the production efficiency is rather limited.

How to improve the problems encountered in conventional injection blow molding molds, and how to maintain good shrinkage and quality of finished containers is a topic that relevant industry players are actively solving.

The main purpose of the present invention is to provide a double-split cooling channel structure for injection blow molding moulds. Two mold cavities are arranged on a set of molds, and a first cooling channel and a second cooling channel are arranged at a predetermined position below the mold cavities. Water channel, the first cooling water channel is arranged horizontally and in an inverted V shape at the lower end of the mold cavity, and the second cooling water channel is arranged horizontally and obliquely connected to the first cooling water channel at both ends of the mold, by The setting of the first cooling water channel and the second cooling water channel spliced by the upper part and the lower part can keep the uniform temperature of the mold and control the shrinkage of the finished container in the mold cavity.

In the embodiment of the present invention, the molds can be connected horizontally so that the first cooling channel and the second cooling channel of each group of molds are connected to each other.

Through the above description, the characteristics and effects of the present invention are briefly described as follows:

1. The present invention can provide an additional set of mold cavities on the mold, which can improve production efficiency and reduce mold cost compared with conventional injection blow molding molds.

2. In the present invention, the upper and lower spliced first cooling water channels and the second cooling water channels are arranged in the mold, which can maintain the uniform temperature of the mold and control the shrinkage rate of the finished product in the mold cavity to keep consistent.

"this invention"

10: Mold

1: Mold cavity

2: The first cooling channel

3: The second cooling channel

"Usual structure"

20: Mold

21: Mold cavity

22: cooling channel

Figure 1: Schematic diagram of the cooling channel structure of the current injection blow molding mold.

Figure 2: A perspective view of the structure of the present invention.

Figure 3: is a cross-sectional view of the structure of A-A in Figure 2.

Figure 4: It is a schematic diagram of the horizontal connection of multiple modules.

As shown in Fig. 2 and Fig. 3, the double-split cooling channel structure of the injection blow molding mold of the present invention is mainly provided with two mold cavities 1 on a set of molds 10, and a first Cooling water channel 2 and a second cooling water channel 3; as shown in FIG. 2 , in order to allow the mold 10 to have an even temperature, a first cooling water channel 2 and a second cooling water channel 3 can be provided at the front and rear ends of the mold 10 respectively. For the convenience of description, only one set of first cooling water channels 2 and one set of second cooling water channels 3 are introduced below for illustration, and the first cooling water channels 2 and the second cooling water channels 3 can be increased or decreased according to the specifications of the mold 10 .

Please refer to FIG. 3 , the first cooling channel 2 is horizontally arranged at the lower end of the mold cavity 1 in an inverted V shape, and the second cooling channel 3 is arranged laterally at both ends of the mold 10 and connected obliquely. The first cooling water channel 2 can keep the temperature of the mold 10 uniform and control the shrinkage of the finished container in the mold cavity through the setting of the first cooling water channel 2 and the second cooling water channel 3 spliced at the top and bottom.

Please refer to Fig. 4, for the convenience of production, multiple groups of molds 10 can be horizontally connected to the injection blow molding machine (not shown), and the first cooling channel 2 and the second cooling channel 3 of each group of molds are connected to each other; By comparing this embodiment with the embodiment of Figure 1, the mold 10 in Figure 4 can form four finished containers at one time, while the mold in Figure 1 can only form two finished containers. Multiple sets of molds 10, compared with the productivity of conventional molds, the structure of the present invention is far ahead of conventional structures.

To sum up, the structure of the present invention has never been seen in any books or public use, and it truly meets the requirements of the invention patent application. I sincerely hope that the bureau will grant the patent as soon as possible, and I will pray for it.

It needs to be stated that the above descriptions are specific embodiments of the present invention and the technical principles used. If changes are made according to the concept of the present invention, the functions produced by it still do not exceed the spirit covered by the description and drawings. , should be within the scope of the present invention, together to state.

"this invention"

10: Mold

1: Mold cavity

2: The first cooling channel

3: The second cooling channel

Claims (3)

A double-split cooling water channel structure for an injection blow molding mold. Two mold cavities are set on a set of molds, and a first cooling water channel and a second cooling water channel are arranged at a predetermined position below the mold cavity. The first cooling water channel It is arranged at the lower end of the mold cavity horizontally and in an inverted V shape, and the second cooling water channel is arranged horizontally at both ends of the mold and connected obliquely to the first cooling water channel. The arrangement of the first cooling water channel and the second cooling water channel can keep the uniform temperature of the mold and control the shrinkage of the finished container in the mold cavity. The double-split cooling water channel structure of the injection blow molding mold according to claim 1, wherein the molds can be arranged and connected horizontally, so that the first cooling water channel and the second cooling water channel of each group of molds are connected to each other. The double-split cooling water channel structure of the injection blow molding mold as described in Claim 1, wherein a first cooling water channel and a second cooling water channel are respectively provided at the front end and the rear end of the mold.

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