A bubble-repellent PC panel structure with a flow guide groove on the edge

Abstract

The utility model relates to PC panel manufacturing technical field, concretely is a kind of easy to bubble-removing PC panel structure with edge with flow guide groove, including PC panel body, the two side edges of PC panel body are respectively equipped with multiple groups of flow guide unit along the edge direction distribution, each group of flow guide unit is all communicated with each other through communicating hole, and each group is composed of one main flow guide groove and the auxiliary flow guide branch groove symmetrically arranged in the two sides of main flow guide groove, the main flow guide groove is recessed linear structure, the auxiliary flow guide branch groove is inclined arrangement and is communicated with main flow guide groove, and overall constitutes multi-path gas guiding structure. The easy to bubble-removing PC panel structure with edge with flow guide groove has simple structure, processing is convenient, practicality is strong, effectively guides the flow path of gas in forming process, thereby significantly reduces product internal bubble defect, improves appearance quality and structural strength.

Description

Technical Field

[0001] This utility model relates to the field of PC panel manufacturing technology, specifically to a PC panel structure with drainage grooves on the edge that is easy to defoam. Background Technology

[0002] Polycarbonate (PC) panels are widely used in various industrial fields, such as electronic display device housings, building skylights, and vehicle interiors, due to their excellent optical properties, impact resistance, and processability. In actual production, PC materials are mostly manufactured into panel products of various specifications using injection molding or extrusion molding processes.

[0003] Currently, the structure of common PC panels on the market is relatively simple, usually a flat structure or only with chamfering. It lacks effective guidance for the gas flow path during the molding process. During the mold closing and material filling stages, air is easily trapped in the edge area of ​​the panel, forming bubbles that are difficult to escape. This is especially noticeable in products with complex structures or large thicknesses. These bubbles not only affect the light transmittance and surface flatness of the finished product, but may also lead to a decrease in local strength, reducing the product's durability and safety. In addition, since there are no features in the structure to facilitate gas passage, existing processes often rely on increasing the mold temperature or extending the cooling time to improve the degassing effect, resulting in problems such as reduced production efficiency and increased energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide a PC panel structure with a guide groove on the edge that is easy to degas, so as to solve the problem mentioned in the background art that air is easily trapped at the edge of the panel during the current PC panel molding process, and the bubbles are difficult to escape, resulting in bubble defects in the product and affecting the appearance quality and mechanical properties.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PC panel structure with flow guide grooves on the edges, comprising a PC panel body, wherein multiple sets of flow guide units are respectively provided on both sides of the PC panel body along the edge direction, each set of flow guide units is interconnected through connecting holes, and each set consists of a main flow channel and auxiliary flow guide branches symmetrically arranged on both sides of the main flow channel, the main flow channel is a recessed linear structure, and the auxiliary flow guide branches are arranged at an inclination and connected to the main flow channel, forming a multi-path gas guiding structure.

[0006] Preferably, the connecting hole penetrates the PC panel body between two adjacent flow guiding units, has a diameter of 0.5-1.5mm, and is evenly distributed along the edge direction.

[0007] Preferably, the main flow channel has a "V" shaped cross-section, a depth of 0.1-0.5 mm, a width of 0.3-1.2 mm, and extends continuously along the edge of the PC panel body.

[0008] Preferably, the auxiliary flow guide channel is arranged at an angle of 30°-60° relative to the main flow channel, with a channel depth of 0.1-0.4mm and a channel width of 0.2-0.8mm, and the end gradually narrows towards the inner side of the PC panel to form a conical flow channel.

[0009] Preferably, the bottom of the main flow channel is provided with a micropore array, which consists of multiple blind holes with a diameter of 0.1-0.3 mm, and is evenly distributed on the bottom surface of the main flow channel.

[0010] Preferably, the PC panel body is provided with positioning flanges on both sides of the edge. The positioning flanges are located on the side opposite to the flow guiding unit and have a semi-circular cross-section.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This easily degassed PC panel structure with flow guide grooves on the edges is simple in structure, easy to process, and highly practical. It effectively guides the flow path of gas during the molding process, thereby significantly reducing internal bubble defects and improving appearance quality and structural strength. Through the coordinated layout of the main flow channel and auxiliary flow guide grooves in the flow guide unit, combined with the design of connecting holes, this structure achieves efficient guidance and orderly escape of gas during material filling and cooling, avoiding the retention and accumulation of bubbles in the edge area. This solves the problem of difficult degassing caused by the simple structure of traditional PC panels, improving production efficiency and product yield. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an easy-to-defoam PC panel with drainage grooves on the edge according to the present invention.

[0013] Figure 2 This is a schematic diagram of a partial edge structure of a PC panel body with a defoaming PC panel structure having a flow guide groove on the edge, according to the present invention.

[0014] Figure 3 This is a side view of the PC panel body structure of the present invention, which has a PC panel structure with a guide groove on the edge for easy defoaming.

[0015] In the figure: 1. PC panel body; 2. Flow guiding unit; 21. Main flow channel; 22. Auxiliary flow guiding branch channel; 3. Connecting hole; 4. Micro-hole array; 5. Positioning flange. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a PC panel structure with flow guide grooves on the edges that facilitates degassing, including a PC panel body 1. Multiple sets of flow guide units 2 are distributed along the edge direction on both sides of the PC panel body 1. Each set of flow guide units 2 is interconnected through connecting holes 3. Each set of flow guide units 2 consists of a main flow channel 21 and auxiliary flow guide branches 22 symmetrically arranged on both sides of the main flow channel 21. The main flow channel 21 has a recessed linear structure, and the auxiliary flow guide branches 22 are arranged at an angle and connected to the main flow channel 21. The whole structure constitutes a multi-path gas guiding structure. This structure allows molten PC material to enter the mold... After the cavity is formed, the internal gas expands due to heat during the cooling and solidification process and migrates towards the edge. At this time, the flow guiding unit 2 forms a multi-path gas guiding structure through its main flow channel 21 and the auxiliary flow guiding branches 22 on both sides. This allows the gas to quickly converge into the main flow channel 21 along the inclined auxiliary flow guiding branches 22, and then be orderly guided towards the edge through the linearly extending concave structure of the main flow channel 21. At the same time, the gas flows across regions between adjacent flow guiding units 2 through the connecting holes 3, further improving the gas escape efficiency and preventing bubbles from accumulating inside the material, especially in the edge areas. This effectively solves the problem of the lack of effective gas drainage in the prior art. The design addresses the issue of difficult-to-release bubbles caused by the guiding structure, improving molding yield and product surface quality. Simultaneously, the transition area between the main flow channel 21 and the auxiliary flow channel 22 features a rounded corner structure to reduce resistance during gas flow and prevent stress concentration, thus improving structural durability. A connecting hole 3 penetrates the PC panel body 1 between two adjacent flow guiding units 2, with a diameter of 0.5-1.5mm, and is evenly distributed along the edge. This structure allows gas generated during molding to flow freely between multiple flow guiding units 2, effectively widening the gas escape path and preventing localized pressure buildup that could lead to bubble residue, thereby improving molding yield and surface quality. To improve overall degassing efficiency and product quality, the main flow channel 21 has a "V" shaped cross-section with a depth of 0.1-0.5mm and a width of 0.3-1.2mm, and extends continuously along the edge of the PC panel body 1. This structure can effectively guide the gas inside the molten material to move quickly towards the edge along the "V" shaped channel wall during the molding process, forming a stable gas flow channel, which is conducive to the smooth discharge of bubbles, reduces internal defects in the product, and improves molding quality and structural integrity. The auxiliary flow channel 22 is arranged at an angle of 30°-60° relative to the main flow channel 21, with a channel depth of 0.1-0.4mm and a channel width of 0.2-0.The auxiliary flow channel 22, with a diameter of 8mm, gradually narrows towards the inside of the PC panel body 1 to form a conical flow channel. When the molten PC material cools and solidifies in the mold, the internal gas expands due to heat and migrates to the edges. The auxiliary flow channel 22, with its inclined arrangement and gradually narrowing design, efficiently guides the gas to the main flow channel 21. This not only enhances the directionality and speed of the gas flow but also ensures that the gas can quickly and smoothly enter the main flow channel 21 and eventually exit, effectively preventing the accumulation of bubbles inside the material, especially in the edge areas. Simultaneously, the bottom of the auxiliary flow channel 22 is on the same plane as the bottom of the main flow channel 21 to maintain the smoothness of the gas flow path and reduce turbulence. The bottom of the main flow channel 21 is provided with a micropore array 4, consisting of multiple micropores with diameters of 0.1-0.3mm. The micropore array 4, composed of tiny blind holes (mm in diameter), is evenly distributed on the bottom surface of the main flow channel 21. This micropore array enhances the local gas adsorption and dispersion capabilities. These tiny blind holes, evenly distributed at the bottom of the main flow channel 21, provide additional gas escape paths, allowing gas to be guided and released over a wider area. Positioning flanges 5 are also provided on both sides of the PC panel body 1. Located on the side opposite to the flow guiding unit 2, the positioning flanges 5 have a semi-circular cross-section. This structure achieves precise positioning through the fit between the semi-circular cross-section of the positioning flanges 5 and the mold cavity, effectively preventing the PC panel body 1 from shifting or misaligning during molding. This ensures the accurate positioning of the flow guiding unit 2 and its internal main flow channel 21, auxiliary flow guiding channel 22, and other structures within the mold, thereby guaranteeing the integrity of the gas guiding path and the stability of the degassing effect.

[0018] Working principle: First, the PC panel body 1 is placed into the injection mold cavity, and the positioning flange 5 cooperates with the mold to achieve precise positioning, ensuring that the entire PC panel body 1 maintains a stable position during the molding process. Then, molten PC material is injected. The material enters from the main channel of the mold and gradually fills the cavity. During the filling process, the gas trapped inside the material migrates to the outside due to thermal expansion. This gas gradually gathers into the main flow channel 21 along the auxiliary flow channel 22 in the flow guiding unit 2. At the same time, some gas flows between adjacent flow guiding units 2 through the connecting hole 3 to achieve cross-regional gas transfer and avoid local gas accumulation. As the molding process continues, the gas continues to move outward along the main flow channel 21 and is finally discharged from the edge of the mold. During this process, the micropore array 4 also participates in the further dispersion and guidance of the gas, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A defoaming PC panel structure with edge flow guide groove, comprising a PC panel body (1), characterized in that: The PC panel body (1) has multiple sets of flow guiding units (2) distributed along the edge direction on both sides. Each set of flow guiding units (2) is interconnected through a connecting hole (3). Each set of flow guiding units (2) consists of a main flow channel (21) and auxiliary flow guiding branches (22) symmetrically arranged on both sides of the main flow channel (21). The main flow channel (21) is a recessed linear structure. The auxiliary flow guiding branches (22) are arranged at an angle and connected to the main flow channel (21). The whole structure forms a multi-path gas guiding structure.

2. The easy defoaming PC panel structure with deflector groove on the edge according to claim 1, characterized in that: The connecting hole (3) penetrates the PC panel body (1) between two adjacent flow guiding units (2), and the diameter of the connecting hole (3) is 0.5-1.5mm, and it is evenly distributed along the edge direction.

3. The easy defoaming PC panel structure with deflector groove on the edge according to claim 1, characterized in that: The main flow channel (21) has a "V" shaped cross-section, a depth of 0.1-0.5 mm, a width of 0.3-1.2 mm, and extends continuously along the edge of the PC panel body (1).

4. The easy defoaming PC panel structure with deflector groove on the edge according to claim 1, characterized in that: The auxiliary flow guide channel (22) is arranged at an angle of 30°-60° relative to the main flow channel (21), with a channel depth of 0.1-0.4mm and a channel width of 0.2-0.8mm. The end of the auxiliary flow guide channel (22) gradually narrows towards the inside of the PC panel body (1) to form a conical flow channel.

5. The easy defoaming PC panel structure with deflector groove on the edge according to claim 1, characterized in that: The bottom of the main flow channel (21) is provided with a micropore array (4), and the micropore array (4) is composed of multiple blind holes with a diameter of 0.1-0.3 mm, which are evenly distributed on the bottom surface of the main flow channel (21).

6. The easily defoamed PC panel structure with flow guide grooves on the edge according to claim 1, characterized in that: The PC panel body (1) is also provided with positioning flanges (5) on both sides. The positioning flanges (5) are located on the side opposite to the flow guiding unit (2), and their cross-section is semi-circular.

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