Injection mold structure for enhancing release of main runner

Abstract

The utility model relates to the field of plastic injection mold structures, and discloses an injection mold structure for enhancing release of a main runner, which comprises a bottom plate, a panel is mounted at the top of the bottom plate, a mold main runner is arranged in the panel, and a movable mold cold material well is mounted at the bottom of the mold main runner. Four material pulling nail bodies are arranged on the periphery of the movable mold cold material well, the four material pulling nail bodies abut against the outer portion of the movable mold cold material well, the vertical distance between two material pulling nail bodies is 60 degrees, and the transverse distance between the other two material pulling nail bodies is 120 degrees. According to the utility model, the cooling time of the cold material well and the runner is not increased after the resin material is completely filled, and meanwhile, good connection with the cold material well and the runner is ensured, so that the super-strong resin material can be uniformly filled into a mold cavity, the problem of internal stress concentration caused by non-uniform filling is reduced, and the service life of the mold cavity is prolonged. And the main runner can be ensured to be smoothly separated after each injection molding cycle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic injection mold structure, especially to a kind of injection mold structure of reinforcing main runner release. BACKGROUND

[0002] At present in injection industry, the application of plastic material and its product has involved all walks of life, in the industrial field, automobile manufacturing relies on plastic parts to realize lightweight and design flexibility, electronic and electrical industry is more dependent on precise plastic components to achieve miniaturization and multifunctional integration goal, in daily life, from the rich variety of household supplies to the innovative application in the field of medical care, plastic is everywhere and indispensable.Injection molding as the key process of plastic product production, the reliability of its mold structure is directly related to the quality of product and cost and the efficiency of production.

[0003] At present in injection industry, the plastic material used for injection production is various, and new material is continuously developed and put into production and use, and high-performance high-strength plastic material is also used in various industries instead of metal material.The high-strength plastic material injection mold added with high proportion of glass fiber, the main runner of injection part is pulled off from the outer edge of forming machine nozzle when the mold is opened, and the release force from the fixed mold is far more than that of ordinary plastic.So it is necessary to seek a new structure on the mold to produce stronger pulling force to improve. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a kind of injection mold structure of reinforcing main runner release, changes the shape of movable die cold material well in design, so that it can generate super strong pulling force, ensure that the main runner of injection part can be pulled off from the outer edge of forming machine nozzle, and realize stable production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of injection mold structure of reinforcing main runner release, including bottom plate, the top of bottom plate is equipped with panel, the inside of panel is provided with mold main runner.

[0006] As a further description of the above technical scheme:

[0007] The bottom of mold main runner is equipped with movable die cold material well, four pulling material peg main bodies are arranged around movable die cold material well, and the outer part of four pulling material peg main bodies is in abutment with movable die cold material well.

[0008] As a further description of the above technical scheme:

[0009] The vertical spacing of two pulling material peg main bodies is set as 60 °, and the horizontal spacing of other two is set as 120 °.

[0010] As a further description of the above technical solutions:

[0011] The depth of the material pulling nail body is set to 57.06 mm.

[0012] As a further description of the above technical solutions:

[0013] The opening of the mold main flow channel is set to 3.55 mm in size.

[0014] As a further description of the above technical solutions:

[0015] The first positioning nail is installed at the connection between the bottom plate and the panel, and the second positioning nail is arranged outside the mold main flow channel.

[0016] The utility model has the following beneficial effects:

[0017] In the utility model, the cooling time of the cold material well and the flow channel is not increased after the resin material is completely filled, the connection with the cold material well and the flow channel is good, the super strong resin material can be more uniformly filled into the mold cavity, the internal stress concentration problem caused by uneven filling is reduced, and the mold main flow channel can be smoothly separated after each injection molding cycle, and mold failure or product defects caused by residual mold main flow channel are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional schematic view of a reinforced mold main flow channel separation type injection mold structure is provided for the utility model;

[0019] Figure 2 A structure schematic view of a panel of a reinforced mold main flow channel separation type injection mold structure is provided for the utility model;

[0020] Figure 3 A structure schematic view of a movable mold cold material well of a reinforced mold main flow channel separation type injection mold structure is provided for the utility model;

[0021] Figure 4 A structure schematic view of a material pulling nail body of a reinforced mold main flow channel separation type injection mold structure is provided for the utility model;

[0022] Figure 5 A structure schematic view of a mold main flow channel of a reinforced mold main flow channel separation type injection mold structure is provided for the utility model.

[0023] LEGEND:

[0024] 1, bottom plate; 2, panel; 3, mold main flow channel; 4, movable mold cold material well; 5, material pulling nail body; 6, first positioning nail; 7, second positioning nail. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] With reference to Figure 1 and Figure 5 , the utility model provides an embodiment: a kind of reinforced main runner release injection mold structure, including bottom plate 1, bottom plate 1 top is equipped with panel 2, and panel 2 provides installation position for mold main runner 3. Panel 2 is internally provided with mold main runner 3, to ensure that molten resin can flow into the cavity inside mold from injection molding machine nozzle. The opening of mold main runner 3 is set to 3.55mm size, to facilitate resin flow to move into mold cold material well 4.

[0027] First positioning nail 6 is installed at the connecting portion of bottom plate 1 and panel 2, to ensure that the relative position of bottom plate 1 and panel 2 in each direction is accurate. Second positioning nail 7 is arranged outside mold main runner 3, so that mold main runner 3 is stably installed in panel 2.

[0028] With reference to Figure 2 , mold main runner 3 bottom is equipped with movable mold cold material well 4, and movable mold cold material well 4 cooperates with material pulling nail main body 5 to realize the smooth release of main runner. Four material pulling nail main bodies 5 are arranged around movable mold cold material well 4, and the outer portion of four material pulling nail main bodies 5 abuts against movable mold cold material well 4, and resin can enter material pulling nail main body 5 through the gap between movable mold cold material well 4 and material pulling nail main body 5.

[0029] With reference to Figure 3 , the vertical spacing of two material pulling nail main bodies 5 is set to an included angle of 60 °, and the horizontal spacing of other two material pulling nail main bodies 5 is set to an included angle of 120 °, so that material pulling nail main body 5 forms balanced tension distribution around movable mold cold material well 4.

[0030] With reference to Figure 4 , the depth of material pulling nail main body 5 is set to 57.06mm, which can ensure the connection volume of material to generate strong friction force, and at the same time, will not affect the overall structural strength of mold and the normal work of other components.

[0031] Working principle: at the beginning of injection molding of the molding machine, the molten super-strong resin material is extruded and flows from the main runner 3 of the mold to fill the internal cavity of the mold. When the material is filled into the movable mold cold well 4, it enters the pull pin body 5 through the gap connected with the cold well. When the mold is opened, the molten super-strong resin material solidifies, and the material in the movable mold cold well 4 is connected with the material in the pull pin body 5, which greatly increases the friction area and generates super-strong pulling force. After the main runner of the super-strong resin material is broken off from the solidification part of the nozzle of the molding machine and pulled out from the fixed side of the mold when the mold is opened, stable production can be ensured.

[0032] Finally, it should be pointed out that the above is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An injection mold configuration for reinforcing the main flow channel release of a mold, comprising a base plate (1), characterized in that: The bottom plate (1) top is equipped with panel (2), the panel (2) inside is provided with mould main flow channel (3); The mould main flow channel (3) bottom is equipped with movable die cold material well (4), the movable die cold material well (4) around is provided with four pull material peg main body (5), four pull material peg main body (5) with movable die cold material well (4) outside abuts.

2. A reinforced main flow channel delamination injection mold configuration according to claim 1, characterized in that: The vertical spacing of two pull material peg main body (5) is set as the included angle 60 °, and the other two horizontal spacing is set as the included angle 120 °.

3. A reinforced main flow channel parting injection mold configuration according to claim 1, characterized by: The depth of pull material peg main body (5) is set as 57.06mm.

4. A reinforced main flow channel delamination injection mold configuration according to claim 1, wherein: The opening of mould main flow channel (3) is set as 3.55mm size.

5. A reinforced main flow channel delamination injection mold configuration according to claim 1, wherein: The connecting place of bottom plate (1) and panel (2) is equipped with first positioning nail (6), and the outside of mould main flow channel (3) is provided with second positioning nail (7).

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