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A single-cavity molding twice-sealing mechanism of an injection mold

An injection mold and sealing technology, which is applied in the field of single-cavity molding secondary sealing mechanism, can solve the problems of high cost and complex structure, and achieve the effects of simple processing, simplified structure, and reduced mold manufacturing cost and injection molding cost

Pending Publication Date: 2018-04-10
浙江西诺模具有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In order to change the lack of aesthetics of a single color, plastic products usually use two-color injection molding to improve their aesthetics. The current two-color mold requires the design of two molds for one product or two independent cavities in one mold. This plastic product molding The process requires the injection molding machine to be equipped with rotary injection molding equipment, the structure is complex and the cost is quite high

Method used

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  • A single-cavity molding twice-sealing mechanism of an injection mold
  • A single-cavity molding twice-sealing mechanism of an injection mold
  • A single-cavity molding twice-sealing mechanism of an injection mold

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Embodiment Construction

[0012] The present invention will be further described below in combination with the accompanying drawings and specific embodiments. Such as Figure 1-4 As shown, the single-cavity molding secondary sealing mechanism of the injection mold includes the upper press plate 4 of the injection molding machine, the hot runner plate 3 and the movable mold 1 and the fixed mold 2. The difference between the movable mold 1 and the fixed mold 2 is The mold cavity 8 is formed after the molds are closed, and the upper press plate 4, the hot runner plate 3 and the fixed mold 2 are also provided with a sealing core pulling mechanism.

[0013] The sealing and core-pulling mechanism includes a sealing and core-pulling slider 5, and the sealing and core-pulling slider 5 is connected to the piston rod 71 of the oil cylinder 7 through the oil cylinder connection block 6, and the oil cylinder 7 is installed on the upper press plate 4 Among them, a chute is formed in the hot runner plate 3 and the ...

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Abstract

The invention relates to a single-cavity molding twice-sealing mechanism of an injection mold. The mechanism includes an upper press plate and hot runner manifold of an injection molding machine, a fixed die and a movable die. A mold cavity is formed after the fixed die and the movable die are assembled. The mechanism also includes a sealing core-pulling slide block. The sealing core-pulling slideblock is connected to a piston rod of an oil cylinder through an oil cylinder connecting block. The oil cylinder is mounted in the upper press plate. The hot runner manifold and the fixed die are provided with slide slots. The sealing core-pulling slide block is driven by the oil cylinder to slide in the slide slots, and is provided with a stopper used for dividing the mold cavity into a first-color injection molding cavity and a second-color injection molding cavity. A first gate is disposed in the first-color injection molding cavity, and a second gate is disposed in the second-color injection molding cavity. According to the injection mold, only by designing the one mold cavity, double-color injection molding can be achieved, structures of the injection mold and the injection molding machine are greatly simplified, and the injection molding cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a secondary sealing mechanism for single-cavity molding of injection molds. Background technique [0002] In order to change the lack of aesthetics of a single color, plastic products usually use two-color injection molding to improve their aesthetics. The current two-color mold requires the design of two molds for one product or two independent cavities in one mold. This plastic product molding The process requires the injection molding machine to be equipped with rotary injection molding equipment, the structure is complex, and the cost is quite high. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of the prior art, and provide a single-cavity molding secondary sealing mechanism with simple structure and low cost for the two-color injection mold. [0004] For realizing the purpose of the invention, the technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27B29C45/33B29C45/16
CPCB29C45/16B29C45/2708B29C45/332
Inventor 吴博林李素君
Owner 浙江西诺模具有限公司
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