Sprue runner structure

Abstract

The utility model provides a sprue runner structure, and belongs to the technical field of automobile lamps. The sprue runner structure comprises a fixed mold, a movable mold, a first mold core, a second mold core, a thick-wall part, a hot runner system and a cold material well, the first mold core is arranged on the fixed mold, the second mold core is arranged on the movable mold, the thick-wall part is arranged between the first mold core and the second mold core, and the hot runner system is arranged between the thick-wall part and the second mold core. The hot runner system is arranged on the first mold core, the second mold core is provided with sprues, during use, the number of the sprues on the second mold core is reduced from five to one, and a cold material well structure is additionally arranged on the second mold core, namely, a cold material well is additionally arranged at the sprue for glue feeding, so that the injection molding pressure is ensured to be within a standard range, and the injection molding efficiency is improved. The sprue runner structure is simple in structure and convenient to operate, the problems of water filaments, yellowing and cold materials can be effectively solved, the qualification rate of thick-wall parts is greatly increased, normal production can be achieved, the yield is increased, and the mold cost is also saved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile lamps, and in particular to a gate runner structure. Background Art

[0002] At present, in the automotive lighting industry, the conventional design of headlights has not changed much. With the progress of the times and the broadening of vision, the structure of headlights has become more and more complex, and the appearance requirements have become higher and higher. Conventional technical methods can no longer meet the development and mass production of existing products. For thick-walled parts made of PC material with a length of 1700mm, using mold flow software simulation analysis and past experience, 4-5 gates need to be set so that the injection pressure can be within the standard range and meet the theoretical filling requirements. However, the more gates there are, the smaller the appearance defects and process debugging window will be, and the defective rates of water threads, yellowing, cold materials, etc. will increase, increasing delivery pressure. Therefore, we need to change the production mold of thick-walled parts to meet product development and mass production. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides a gate runner structure, which aims to improve the existing thick-walled parts of PC material with a length of 1700mm. Using mold flow software simulation analysis and past experience, 4-5 gates need to be set so that the injection pressure can be within the standard range and meet the theoretical filling requirements; but the more gates there are, the smaller the appearance defects and process debugging window will be, and the defective rates of water threads, yellowing, cold materials, etc. will increase, increasing the delivery pressure.

[0004] This application is implemented as follows:

[0005] The present application provides a gate runner structure, comprising a fixed mold, a movable mold, a first mold core, a second mold core, a thick-walled part, a hot runner system and a cold well, wherein the first mold core is arranged on the fixed mold, and the second mold core is arranged on the movable mold;

[0006] The thick-walled part is arranged between the first mold core and the second mold core, the hot runner system is arranged on the first mold core, a gate is opened on the second mold core, the cold material well is fixedly installed on the second mold core, and the cold material well and the gate are arranged correspondingly.

[0007] In one embodiment of the present application, it also includes a first mounting plate, which is fixedly mounted on the fixed mold.

[0008] In one embodiment of the present application, it also includes a second mounting plate, and the second mounting plate is fixedly mounted on the movable mold.

[0009] In one embodiment of the present application, a main nozzle for glue inlet is provided on the cold material well.

[0010] The beneficial effect of the present application is: the present application obtains a gate runner structure through the above-mentioned design. When in use, the gates on the second mold core are reduced from five to one, and a cold material well structure is added to the second mold core, that is, a cold material well is added at the gate for glue inlet, which ensures that the injection pressure is within the standard range while effectively improving the problems of water threads, yellowing, and cold materials. The qualified rate of thick-walled parts is greatly improved. The gate runner structure can not only improve the yield rate of normal production, but also save mold costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a gate runner structure provided in an embodiment of the present application;

[0013] Figure 2 A diagram showing the relationship between the first mold core, the second mold core and the thick-walled part provided in an embodiment of the present application;

[0014] Figure 3 A schematic diagram of the three-dimensional structure of the first mold core provided in an embodiment of the present application;

[0015] Figure 4 A schematic diagram of the three-dimensional structure of the second mold core provided in an embodiment of the present application;

[0016] Figure 5 Provided for the implementation of this application Figure 4 Magnified view of area A.

[0017] In the figure: 110 - fixed mold; 120 - movable mold; 130 - first mounting plate; 140 - second mounting plate; 150 - first mold core; 160 - second mold core; 170 - thick-walled part; 180 - hot runner system; 190 - gate; 191 - cold material well; 192 - main nozzle glue inlet. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] Example

[0020] See also Figure 1 - Figure 5 The present application provides a technical solution: a gate runner structure, including a fixed mold 110, a movable mold 120, a first mold core 150, a second mold core 160, a thick-walled part 170, a hot runner system 180 and a cold well 191, the first mold core 150 is arranged on the fixed mold 110, the second mold core 160 is arranged on the movable mold 120, and also includes a first mounting plate 130, the first mounting plate 130 is fixedly mounted on the fixed mold 110, and the arrangement of the first mounting plate 130 is convenient for mounting and fixing the fixed mold 110, and also includes a second mounting plate 140, the second mounting plate 140 is fixedly mounted on the movable mold 120, and the arrangement of the second mounting plate 140 is convenient for mounting and fixing the movable mold 120;

[0021] The thick-walled part 170 is arranged between the first mold core 150 and the second mold core 160, the hot runner system 180 is arranged on the first mold core 150, the second mold core 160 is provided with a gate 190, and a cold material well 191 is fixedly installed on the second mold core 160. The cold material well 191 and the gate 190 are arranged correspondingly. A main nozzle glue inlet 192 is arranged on the cold material well 191. The setting of the main nozzle glue inlet 192 can alleviate the storage of cold materials.

[0022] Specifically, the working principle of the gate runner structure is as follows: when in use, the gates 190 on the second mold core 160 are reduced from five to one, and a cold material well 191 structure is added to the second mold core 160, that is, a cold material well 191 is added at the gate 190 for glue inlet, which ensures that the injection pressure is within the standard range while effectively improving the problems of water threads, yellowing, and cold materials. The qualified rate of thick-walled parts 170 is greatly improved. The gate runner structure can not only improve the yield rate of normal production, but also save mold costs.

[0023] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A gate runner structure, It is characterized in that The invention comprises a fixed mold (110), a movable mold (120), a first mold core (150), a second mold core (160), a thick-walled part (170), a hot runner system (180) and a cold well (191), wherein the first mold core (150) is arranged on the fixed mold (110), and the second mold core (160) is arranged on the movable mold (120); The thick-walled part (170) is arranged between the first mold core (150) and the second mold core (160), the hot runner system (180) is arranged on the first mold core (150), the second mold core (160) is provided with a gate (190), the cold material well (191) is fixedly installed on the second mold core (160), and the cold material well (191) and the gate (190) are arranged correspondingly.

2. A gate runner structure according to claim 1, It is characterized in that It also includes a first mounting plate (130), wherein the first mounting plate (130) is fixedly mounted on the fixed mold (110).

3. A gate runner structure according to claim 1, It is characterized in that It also includes a second mounting plate (140), wherein the second mounting plate (140) is fixedly mounted on the movable mold (120).

4. A gate runner structure according to claim 1, It is characterized in that The cold material well (191) is provided with a main nozzle for glue inlet (192).

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