CN-224210433-U - Injection flow automatic regulating mechanism for liquid silica gel injection molding system

Abstract

The utility model relates to the technical field of injection molding systems, in particular to an automatic injection flow adjusting mechanism for a liquid silica gel injection molding system. The automatic pouring device comprises a cold runner system die, a plurality of pouring runner systems arranged on the cold runner system die, cold runner nozzle cylinder assemblies arranged one by one and used for being matched with the pouring runner systems, valve needle assemblies driven by the cold runner nozzle cylinder assemblies, and an adjusting mechanism arranged on the cold runner system die and used for independently controlling the cold runner nozzle cylinder assemblies. The utility model has the advantages that the technical scheme is characterized in that a group of adjusting mechanisms which can be controlled independently are arranged on the cold runner nozzle cylinder groups, and the stroke distance of the cold runner nozzle cylinder assemblies is controlled by the adjusting assemblies, so that the purpose of reducing the glue outlet flow is achieved.

Inventors

• LI JUNFENG
• ZHU WEI

Assignees

• 马斯特模具有限公司

Dates

Publication Date

20260508

Application Date

20241231

Claims (4)

1. 1. The utility model provides a be used for liquid silica gel injection molding system flow automatic regulating mechanism that moulds plastics, its includes pouring runner system, is used for cooperating the cold runner nozzle cylinder subassembly that pouring runner system set up, receive cold runner nozzle cylinder subassembly driven needle subassembly, place in pouring runner system and independent control cold runner nozzle cylinder subassembly's adjustment mechanism, adjustment mechanism is including can reciprocate and support the regulation pole of needle subassembly, be used for driving the slider that the regulation pole removed, and drive the stepper motor that the slider removed, wherein, stepper motor's drive end is provided with the connection fixture block, the draw-in groove has been seted up to the one end that the slider is connected with stepper motor, stepper motor's connection fixture block embedding in the draw-in groove of slider, the contact terminal surface of connection fixture block and draw-in groove is convex structure.
2. 2. The automatic injection flow regulating mechanism for the liquid silica gel injection molding system according to claim 1, wherein the regulating mechanism further comprises a lower fixing seat arranged on the cold runner nozzle cylinder assembly and an upper fixing seat arranged on the lower fixing seat, a groove for the sliding block to move is formed between the upper fixing seat and the lower fixing seat, and the upper fixing seat and the lower fixing seat are fixed through fixing pieces.
3. 3. The automatic injection flow regulating mechanism for the liquid silica gel injection molding system according to claim 2, wherein one surface of the sliding block, which is in contact with the regulating rod, is provided with an inclined slope.
4. 4. The automatic injection flow regulating mechanism for the liquid silica gel injection molding system according to claim 3, wherein a limiting groove is formed in the upper surface of the sliding block, a limiting pin is arranged in the upper fixing seat, and a part of the limiting pin is arranged in the groove of the limiting groove of the sliding block.

Description

Injection flow automatic regulating mechanism for liquid silica gel injection molding system Technical Field The utility model relates to the technical field of injection molding systems, in particular to an automatic injection flow adjusting mechanism for a liquid silica gel injection molding system. Background The silica gel is widely applied in the market because the silica gel does not release toxic substances, has soft and comfortable touch, can resist high temperature and low temperature (-60 c to +300 c), and has good materialization property. Strong elastomer, better sealing property than rubber, excellent electrical insulation and resistance to chemicals, fuel, oil and water, and can cope with good materials of bad environment. The industrial fields are as follows: the plastic rubber can distinguish solid and liquid, the former is processed by hot pressing and transferring, the latter is mainly processed by injection molding, the liquid is higher in equipment investment and raw material cost, but is observed from the factors of high production speed, low processing degree, less waste and the like, and the injection molding of the liquid silicone rubber is utilized, so that the plastic rubber is certainly a future guiding trend in pursuing the accurate, speed and automatic injection molding production industry. In the prior art, liquid silica gel is divided into gel A and gel B, the ratio of the gel A to the gel B is controlled to be 1:1 by a quantitative device, and the gel A and the gel B are fully mixed by a static mixer, injected into an injection pipe and then injection molding production is carried out. The liquid silica gel is injected into a cold runner system mould to manufacture a silica gel product, so that the advantages of one-step molding, no waste, automation and the like can be achieved. The viscosity of the liquid silica gel is lower, so that the filling flow rate can be faster even under the condition of lower injection pressure in the injection molding process, and the gel discharging balance of each cavity is not easy to ensure during multi-cavity molding because the liquid silica gel has very good fluidity, thereby causing quality problems of product burrs, different weights, unqualified size and the like. Therefore, an automatic injection flow adjusting mechanism for a liquid silica gel injection molding system needs to be designed to solve the above problems. Disclosure of utility model The utility model aims to provide an injection flow automatic regulating mechanism for a liquid silica gel injection molding system, which is used for overcoming the defects in the prior art. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a flow automatic regulating mechanism that moulds plastics for liquid silica gel injection molding system, its includes pouring runner system, is used for cooperating the cold runner nozzle cylinder subassembly that pouring runner system set up, receive cold runner nozzle cylinder subassembly driven needle subassembly, place in pouring runner system and independent control cold runner nozzle cylinder subassembly's adjustment mechanism, adjustment subassembly is including can reciprocate and support the regulation pole of needle subassembly, be used for the drive the slider of regulation pole removal and drive the slider removes, its characterized in that step motor's drive end is provided with the connection fixture block, the draw-in groove has been seted up to the one end that the slider is connected with step motor, step motor's connection fixture block embedding in the draw-in groove of slider. Preferably, a groove for the sliding block to move is formed between the upper fixing seat and the lower fixing seat, and the upper fixing seat and the lower fixing seat are fixed through fixing pieces. Preferably, the contact end surface of the connecting clamping block and the clamping groove is in a circular arc structure. Preferably, one surface of the sliding block, which is in contact with the adjusting rod, is provided with an inclined slope. Preferably, the upper surface of the sliding block is provided with a limit groove, the upper fixing seat is internally provided with a limit pin, and a part of the limit pin is arranged in the groove of the limit groove of the sliding block. The cold runner nozzle cylinder assembly has the beneficial effects that the technical scheme is characterized in that the cold runner nozzle cylinder assemblies are respectively provided with a group of adjusting mechanisms capable of being independently controlled, and the stroke distance of the cold runner nozzle cylinder assemblies is controlled through the adjusting assemblies, so that the purpose of reducing the glue outlet flow is achieved, the problem of unbalanced glue inlet of the cold runner system is solved, the defective rate of products is reduced, and a series of problems caused by unb