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Dual-color injection forming device and process

An injection molding device and cavity technology, which is applied in the field of injection molding devices and processes, can solve problems such as narrow applicability, high cost, and large economic burden for small and medium-sized enterprises, and achieve wide applicability of molds, shorten delivery time, and shorten orders the effect of time

Pending Publication Date: 2019-03-15
HAITIAN PLASTICS MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. High cost: the production of products needs to be specially equipped with a rotary shaft type two-color injection molding machine, which is a great economic burden for small and medium-sized enterprises; 2. Narrow applicability and low use value: it needs to be equipped with a special rotary shaft type injection molding machine and rotary shaft type mold. The mold is not applicable, and the rotary shaft injection molding machine cannot be used for the production of other forms of multi-component products

Method used

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  • Dual-color injection forming device and process
  • Dual-color injection forming device and process
  • Dual-color injection forming device and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A two-color injection molding device, see attached figure 2 with 3 , including an injection molding machine and a mold arranged on the injection molding machine, a fixed mold body 71 is fixed on the fixed template 7, and the injection molding machine includes a turntable 8 and a first drive part that drives the turntable 8 to rotate. The first drive part here is The drive shaft 4 and the motor that rotates with the drive shaft 4, because the relationship between the modules in this embodiment is mainly emphasized rather than the specific structure, the motor is not shown here. Of course, it can be understood that the way to drive the turntable 8 to rotate In addition to the drive shaft 4, there may be other forms, such as setting a drive gear on the outside, and setting meshing teeth meshed with the drive gear on the periphery of the turntable 8, and the turntable 8 is driven to rotate by the drive gear. The mold includes a moving mold body 2 and a mold core 3 that is...

Embodiment 2

[0047] See attached Figure 4 , the difference from Embodiment 1 lies in the limited rotation mechanism. The limited rotation mechanism here includes a locking guide post 711 arranged on the side of the fixed mold opposite to the mold core 3, and the side of the mold core 3 opposite to the fixed mold is provided with The clamping hole 34 matched with the clamping guide post 711 is inserted into the clamping hole 34 during the mold opening and closing process of the fixed mold and the movable mold. The rotation of the core 3 in the circumferential direction is restricted through the cooperation of the clamping guide post 711 and the clamping hole 34 .

[0048] Utilize the injection process of the two-color injection molding device as in embodiment two, its step comprises as follows:

[0049] a. Mold closing, the movable mold body 2 and the fixed mold body 71 are molded to form a first cavity and a second cavity, and the first type of plastic is injected into the first cavity t...

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Abstract

The invention discloses a dual-color injection forming device and process. The device comprises an injection molding machine and a mold arranged on the injection molding machine. The injection moldingmachine comprises a rotating disc and a first driving part driving the rotating disc to rotate, the mold comprises a movable mold body and a mold core rotatably connected with the movable mold body,a guide positioning mechanism for limiting circumferential rotation of the mold core is arranged between the mold core and the movable mold body, the movable mold body is fixedly connected with the rotating disc, and the injection forming device is further provided with a rotation limiting mechanism for locking or unlocking circumferential rotation of the mold core. According to the dual-color injection forming device and process, a common rotating disc type injection molding machine can be used for achieving the aim, one machine has multiple purposes, the factory cost burden is reduced, the acquisition cost of a rotating shaft injection molding machine is reduced, and the particularly for small-batch production small and medium enterprises, more profits are made.

Description

technical field [0001] The invention relates to the field of molds, and more specifically, to an injection molding device and process. Background technique [0002] At present, in the multi-component injection molding market, for the needs of all-inclusive and penetrating products, rotary shaft multi-component injection molding machines are mostly used to realize it. [0003] The rotation of the injection molding machine shaft (or the rotation mechanism driven by the mold itself) realizes the rotation of the mold core and the replacement of the cavity. Equipped with two sets of injection units, the effect of two-color injection can be achieved. Its approximate mold structure is shown in the attached figure 1 , The traditional injection molding process adopts a rotary shaft injection molding machine: the rotary shaft mechanism of the injection molding machine is connected with the mold core 3, the rotary shaft 4 drives the mold core 3 to rotate, and the mold body 2 is fixed...

Claims

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Application Information

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IPC IPC(8): B29C45/16B29C45/06B29C45/17
CPCB29C45/06B29C45/16B29C45/17B29C2045/1792B29C2045/1784
Inventor 陆柏军赵浩杰戴国平郑良沈钱泽
Owner HAITIAN PLASTICS MACHINERY GRP