Injection mold with S-shaped glue inlet runner

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold with an S-shaped glue inlet runner, which comprises a first injection mold and a second injection mold, a mold core is arranged between the first injection mold and the second injection mold, the mold core is a display screen PC cover, two groups of communicated T-shaped cooling channels are arranged in each of the first injection mold and the second injection mold, and the S-shaped glue inlet runner is arranged in each T-shaped cooling channel. Grooves are formed in the four corners of the first injection mold. According to the utility model, through the design of the S-shaped glue inlet runner, molten plastic can be promoted to flow more uniformly in the injection molding process, and the retention of gas and cold materials is reduced, so that the surface of a product is smoother, and the overall quality of the product is improved; meanwhile, the injection molding period can be effectively shortened, the production efficiency is improved, and remarkable economic benefits are brought to industrial production; in addition, due to the arrangement of the mold core and the arrangement of the cooling channel, rapid cooling and shaping of the plastic are facilitated, and the stability of the product quality is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with an S-shaped glue inlet runner. Background Technique

[0002] In industrial production, in order to mass-produce products, molds are usually used. Molds can be divided into six types according to product forming, namely injection molding, compression molding, extrusion molding, blow molding, and die casting molding. Among them, injection molding is a production method that uses an injection molding machine to inject heat-melted plastic into a specific mold cavity for production. In the mold cavity of the existing injection molding mold, when injecting plastic, the cold material and gas of the nozzle are not discharged first. When the subsequent molten plastic continues to be injected, it causes wrinkles and unevenness on the product surface, gas retention, and wavy patterns are easily generated on the product surface, seriously affecting work efficiency and product aesthetics. Content of the Utility Model

[0003] The purpose of the utility model is to provide an injection mold with an S-shaped glue inlet runner to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an injection mold with an S-shaped glue inlet runner, including injection mold one and injection mold two. There is a mold core between injection mold one and injection mold two. The mold core is a display screen PC cover. Both injection mold one and injection mold two are internally provided with two groups of connected T-shaped cooling channels.

[0005] Preferably, the four corners of injection mold one are set as grooves, and the four corners of injection mold two are set as integral convex blocks adapted to the grooves.

[0006] Preferably, both injection mold one and injection mold two are provided with S-shaped glue inlet runners. An inlet A is opened at the bending angle position of the S-shaped glue inlet runner provided on injection mold one, and an inlet B is opened at the bending angle position of the S-shaped glue inlet runner provided on injection mold two.

[0007] Preferably, the caliber of inlet A is larger than that of inlet B.

[0008] Preferably, the injection cavity of injection mold one is a PC cover mold core cavity. There is a convex mold in the injection cavity of injection mold two, and convex columns are provided on both sides of the convex mold.

[0009] The utility model provides an injection mold with an S-shaped glue inlet runner. It has the following beneficial effects:

[0010] (1) The utility model, through the S-shaped glue inlet runner design, can promote the more uniform flow of molten plastic during the injection molding process, reduce the retention of gas and cold material, make the product surface smoother, and improve the overall quality of the product. At the same time, this design can also effectively shorten the injection molding cycle, improve production efficiency, and bring significant economic benefits to industrial production. In addition, the setting of the mold core and the layout of the cooling channels are also beneficial to the rapid cooling and shaping of the plastic, further ensuring the stability of the product quality.

[0011] (2) The utility model, through the precisely matched injection mold one and injection mold two, reduces the gap and overflow, improves the dimensional accuracy and raw material utilization rate, conforms to the environmental protection concept. The different caliber designs of the glue inlets A and B optimize the plastic flow rate and pressure, enhance the product quality and appearance. At the same time, the mold structure is stable and easy to maintain, improving the production efficiency and reducing the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic three-dimensional view of the overall structure of the injection mold of the utility model;

[0013] Figure 2 is a schematic three-dimensional view of the disassembled structure of the injection mold of the utility model;

[0014] Figure 3 is a schematic three-dimensional view of the structure of injection mold one of the utility model;

[0015] Figure 4 is a schematic three-dimensional view of the structure of injection mold two of the utility model.

[0016] In the figure: injection mold one 11, injection mold two 12, display screen PC cover 13, T-shaped cooling channel 14, glue inlet A 21, glue inlet B 22, S-shaped glue inlet runner 23, PC cover mold core cavity 24, punch 25, convex column 26. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0018] Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model and should not be construed as a limitation of the utility model.

[0019] The preferred embodiment of an injection mold with an S-shaped glue inlet runner provided by the present utility model is as follows Figures 1-4 shown: An injection mold with an S-shaped glue inlet runner includes an injection mold one 11 and an injection mold two 12. A mold core is arranged between the injection mold one 11 and the injection mold two 12. The mold core is a display screen PC cover 13. Two groups of connected T-shaped cooling channels 14 are provided inside both the injection mold one 11 and the injection mold two 12. The four corner positions of the injection mold one 11 are set as grooves, and the four corner positions of the injection mold two 12 are set as integral convex blocks adapted to the grooves. S-shaped glue inlet runners 23 are opened on both the injection mold one 11 and the injection mold two 12. A glue inlet A 21 is opened at the bend position of the S-shaped glue inlet runner 23 provided on the injection mold one 11, and a glue inlet B 22 is opened at the bend position of the S-shaped glue inlet runner 23 provided on the injection mold two 12. The caliber of the glue inlet A 21 is larger than that of the glue inlet B 22. The injection cavity of the injection mold one 11 is a PC cover mold core cavity 24, and a convex mold 25 is arranged inside the injection cavity of the injection mold two 12, and convex columns 26 are provided on both sides of the convex mold 25.

[0020] Furthermore, the mold consists of two parts, namely injection mold one 11 and injection mold two 12. Between these two molds, a mold core is specially set up, and this mold core is actually a display screen PC cover 13. To ensure the cooling effect of the mold, two sets of interconnected T-shaped cooling channels 14 are equipped inside injection mold one 11 and injection mold two 12. In addition, S-shaped feed runners 23 are respectively opened on the surfaces of injection mold one 11 and injection mold two 12. The design of these runners aims to ensure that the plastic melt can be filled into the mold evenly and smoothly. To facilitate the injection of the plastic melt, a feed port A21 is specially opened at the bend position of the S-shaped feed runner 23 on injection mold one 11, while another feed port B22 is opened at the bend position of the S-shaped feed runner 23 on injection mold two 12. It should be noted that the caliber of feed port A21 is designed to be larger than that of feed port B22. Such a design is to adapt to the requirements of the plastic melt flow rate in different parts and optimize the plastic flow rate and pressure. Inside injection mold one 11, an injection chamber is provided, and this chamber is designed to match the shape of the PC cover mold core cavity 24. While inside the injection chamber of injection mold two 12, a punch 25 is built in. The design of this punch is to form a specific shape during the molding process. To further enhance the stability and strength of the mold, convex columns 26 are specially designed on both sides of the punch 25. These convex columns can provide additional support to ensure the stability and durability of the mold during the injection process. Through the precise cooperation between injection mold one 11 and injection mold two 12, the mold gap is effectively reduced, and the possibility of plastic overflow is decreased. Through this design, not only the dimensional accuracy of the product is optimized, but also the waste of raw materials is reduced, which conforms to the green environmental protection production concept. In addition, the different caliber designs of feed port A21 and feed port B22 help to adjust the flow rate and pressure of the molten plastic, further improving the internal quality and appearance effect of the product. During the continuous production process, the mold structure is stable and easy to maintain, greatly improving the production efficiency and reducing the long-term operation cost.

[0021] During use, when injecting plastic, the cold material and gas of the nozzle are first discharged, so that the cold material and gas diffuse in two directions along the S-shaped feed runner, thus reducing the problems of bubbles and cold lines during the injection process, ensuring that the product surface is smooth and flawless, and then the subsequent molten plastic is injected. At the same time, the design of the S-shaped feed runner also helps to evenly distribute the flow of the molten plastic, making the density of each part of the product more consistent and enhancing the mechanical properties and durability of the product. After the injection is completed, it is quickly and evenly cooled through the T-shaped cooling channel, further reducing the deformation and internal stress of the product and improving the overall product quality and market competitiveness.

[0022] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An injection mold with an S-shaped runner, comprising an injection mold one (11) and an injection mold two (12), characterized in that: There is a mold core between the injection mold one (11) and the injection mold two (12), and this mold core is the display PC cover (13). Both the injection mold one (11) and the injection mold two (12) are internally provided with two groups of connected T-shaped cooling channels (14); both the injection mold one (11) and the injection mold two (12) are provided with S-shaped glue inlet runners (23). At the bend position of the S-shaped glue inlet runner (23) provided on the injection mold one (11), a glue inlet A (21) is provided. At the bend position of the S-shaped glue inlet runner (23) provided on the injection mold two (12), a glue inlet B (22) is provided.

2. The injection mold with an S-shaped glue inlet runner according to claim 1, characterized in that: The four corner positions of the injection mold one (11) are set as grooves, and the four corner positions of the injection mold two (12) are set as integral convex blocks adapted to the grooves.

3. An injection mold with an S-shaped glue inlet runner according to claim 1, characterized in that: The caliber of the glue inlet A (21) is larger than that of the glue inlet B (22).

4. An injection mold with an S-shaped glue inlet runner according to claim 1, characterized in that: The injection cavity of the injection mold one (11) is a PC cover mold core cavity (24). The injection cavity of the injection mold two (12) is internally provided with a convex mold (25), and convex columns (26) are provided on both sides of the convex mold (25).

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