Injection molding process based on dual-color-mixing injection molding machine

A two-color injection molding machine and injection molding machine technology, applied in the field of two-color injection molding machines, can solve problems such as insignificant separation changes, raw materials that are susceptible to cold, and nozzle clogging, so as to improve quality and aesthetics, improve quality and pass rate, and avoid outages. The effect of hole clogging

A two-color injection molding machine and injection molding machine technology, applied in the field of two-color injection molding machines, can solve problems such as insignificant separation changes, raw materials that are susceptible to cold, and nozzle clogging, so as to improve quality and aesthetics, improve quality and pass rate, and avoid outages. The effect of hole clogging

CN111716638AInactive Publication Date: 2020-09-29徐青
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  • Injection molding process based on dual-color-mixing injection molding machine
  • Injection molding process based on dual-color-mixing injection molding machine
  • Injection molding process based on dual-color-mixing injection molding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] refer to Figure 1-2 , an injection molding process based on a double-color injection molding machine, comprising the following steps:

[0027] S1, drying materials, dry the prepared raw materials 10 hours before production for standby;

[0028] S2, the upper mold, correctly install the corresponding mold in the two-color injection molding machine, clean the hopper at the same time, and pour the baked raw materials;

[0029] S3. Debugging process. After the inspection mold is correctly installed, debug the two-color injection molding machine. After debugging, turn on the injection molding machine for preheating;

[0030] S4. Produce injection molding, start the two-color injection molding machine for product production, and do a good job of self-inspection during the production process;

[0031] S5. The products are put into storage, and the products that pass the inspection are packaged and then put into storage for sealing;

[0032] The two-color injection molding ...

Embodiment 2

[0044] refer to Figure 3-4 , and the difference from Embodiment 1 is that a normally open solenoid valve 72 is installed in the nozzle hole 71, and a return pipe 10 is communicated between the nozzle hole 71 and the second feeding cylinder 22, and the return pipe 10 and the nozzle hole 71 A normally closed solenoid valve 101 is installed at the communication point of the connection, and the normally open solenoid valve 72, the second opening and closing valve 221 and the normally closed solenoid valve 101 are connected in series in the same power supply circuit.

[0045] It should be noted that the normally open solenoid valve 72, the second opening and closing valve 221 and the normally closed solenoid valve 101 are all existing electronically controlled valve equipment, and the connection methods between them and their specific installation methods are existing ones. Some mature technologies have nothing to do with the design purpose of this scheme, so no details will be gi...

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Abstract

The invention discloses an injection molding process based on a dual-color-mixing injection molding machine. The process comprises the following steps of S1, drying; S2, mold loading; S3, debugging, wherein after debugging, the injection molding machine is started for preheating; S4, production injection molding; and S5, product warehousing. The dual-color injection molding machine used in the injection molding process comprises a base, injection molding equipment is mounted on the upper end of the base, an outer cover body is mounted on the upper end of the base, a forming device is arrangedin the outer cover body, a first conveying cylinder and a second conveying cylinder are arranged on the injection molding equipment, when one raw material is injected into a spray hole and then the other raw material is injected, a sliding block is pushed to move to push remaining raw materials in the spray hole into a mold to be cooled and formed, accordingly, mixing of the two raw materials in the nozzle can be avoided, the production product quality and the attractive effect can be improved, and meanwhile, condensing of fused raw materials in the nozzle can be avoided.

Description

technical field [0001] The invention relates to the technical field of two-color injection molding machines, in particular to an injection molding process based on a two-color mixed injection molding machine. Background technique [0002] Two-color injection molding is a molding method that injects two plastics with different colors or textures into the same mold. It can process plastic parts with two different colors or textures at one time to improve its practical and aesthetic effects. [0003] Among them, double-color injection molding is a common two-color injection molding method. Two different raw materials are input into the same nozzle through two different barrels, and then enter the mold for molding. In this injection molding method, after the former raw material is injected, some raw materials will remain in the nozzle, so when the latter raw material is injected, two different raw materials will be mixed in the nozzle, resulting in two colors of the molded produ...

Claims

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Application Information

Patent Timeline
29 Sep 2020
Publication
CN111716638A
IPC
B29C45/16; B29C45/20; B29C45/23
CPC
B29C45/16; B29C45/20; B29C45/23; B29C45/231; B29C2045/237
Inventors
徐青; 邹常红