Vacuum pouring device

Abstract

The utility model relates to the technical field of pouring molds, in particular to a vacuum pouring device which comprises a mold body, a vacuum box and an observation assembly, and the mold body is provided with a feeding port and a pressure relief port; the mold body is arranged in the vacuum box; the observation assembly comprises an observation window, an observation through hole is formed in the side wall of the vacuum box, and the observation window is arranged at the observation through hole. According to the vacuum pouring device provided by the embodiment of the invention, the mold closing condition of the mold body in the vacuum box can be observed through the arranged observation window, melt leakage caused by untight mold closing is prevented, the butt joint condition of the material injection machine and the feeding opening of the mold body can be observed, and melt material waste caused by the fact that the melt leaks from the feeding opening of the mold body is prevented.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, and in particular to a vacuum casting device. Background Technology

[0002] Casting molds are one of the core technologies in the plastics processing field. However, despite significant advancements in casting mold technology, existing casting molds still face several challenges. One prominent issue is that the casting process cannot be observed during casting when the mold is located inside a vacuum chamber. The success of the casting can only be determined after the mold is opened, leading to a waste of casting material. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a vacuum casting device.

[0004] This utility model provides the following technical solution:

[0005] An embodiment of this application provides a vacuum casting apparatus, including a mold body, a vacuum chamber, and an observation component. The mold body is provided with a feed port and a pressure relief port. The mold body is disposed inside the vacuum chamber. The observation component includes an observation window, and the side wall of the vacuum chamber is provided with an observation through hole, with the observation window disposed at the observation through hole.

[0006] In one embodiment, the sidewall of the vacuum chamber has a first end, a second end, and a third end, the second end being located between the first end and the third end, the first end being the end of the sidewall near the pressure relief port, and the third end being the end of the sidewall near the feed port; the number of observation components is at least multiple, and at least one of the observation windows is disposed at the first end.

[0007] In one embodiment, at least one of the viewing windows is located at the second end.

[0008] In one embodiment, at least one of the viewing windows is located at the third end.

[0009] In one embodiment, the observation components are provided on both side walls of the vacuum chamber.

[0010] In one embodiment, the observation window includes a frame and a mirror, the frame being disposed at the observation through-hole, and the mirror being disposed within the inner frame of the frame.

[0011] In one embodiment, the mirror body is a plane mirror.

[0012] In one embodiment, the mirror body is a convex mirror or a concave mirror.

[0013] In one embodiment, the observation component further includes a light-emitting element located inside the vacuum chamber, the light-emitting element being capable of emitting light and illuminating the mold body.

[0014] In one embodiment, multiple light-emitting elements are provided and are equidistantly arranged around the circumference of the observation window.

[0015] The embodiments of this utility model have the following advantages:

[0016] The observation window allows for monitoring of the mold's closing status within the vacuum chamber, preventing melt leakage due to improper mold closure. It also allows for monitoring of the connection between the injection molding machine and the mold's feed inlet, preventing melt leakage from the mold's feed inlet and thus avoiding material waste.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 The diagram shows a structural schematic view of one embodiment of a vacuum casting apparatus provided in this application.

[0020] Explanation of key component symbols:

[0021] 100 - Mold body; 110 - Pressure relief port; 120 - Feed inlet; 130 - Cavity;

[0022] 200-Observation Window;

[0023] 300 - Vacuum chamber; 310 - Side wall. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figure 1 As shown, an embodiment of this application provides a vacuum casting apparatus, including a mold body 100, a vacuum chamber 300, and an observation component.

[0030] The mold body 100 is provided with a feed port 120 and a pressure relief port 110. For example, the mold body 100 includes a stationary mold and a moving mold. The moving mold is fastened to the stationary mold, and a cavity 130 is formed between the moving mold and the stationary mold. The cavity 130 is connected to the feed port 120 and the pressure relief port 110. The injection molding machine can inject the melt from the feed port 120 into the cavity 130. The gas in the cavity 130 is discharged into the vacuum box 300 through the pressure relief port 110.

[0031] The feed port 120 and the pressure relief port 110 are located on the stationary mold. However, in some embodiments, a portion of the pressure relief port 110 is located on the moving mold.

[0032] The mold body 100 is disposed within the vacuum chamber 300; exemplary, the interior of the vacuum chamber 300 is a vacuum environment, providing a stable vacuum environment for the pouring of the mold body 100. By disposing of the mold body 100 within the vacuum chamber 300, a stable vacuum environment is provided for the pouring process. This environment helps to reduce or eliminate bubbles and defects generated during the pouring process because the vacuum environment effectively removes air and residual gas from the cavity 130, allowing the melt to fill the cavity 130 more evenly, thereby improving the quality and surface finish of the product.

[0033] For example, melt mainly refers to the material that is heated to a molten state during the casting process and injected into the mold body to form a product. Melt includes, but is not limited to, polystyrene, acrylonitrile-butadiene-styrene copolymer, polycarbonate, polyethylene, polypropylene, nylon, glass, polyoxymethylene or polymethyl methacrylate, etc.

[0034] The observation component includes an observation window 200. An observation through-hole is provided on the side wall 310 of the vacuum chamber 300, and the observation window 200 is located at the observation through-hole. For example, the position of the observation window 200 should be designed to avoid the critical positions of mold body 100 for mold opening and closing and pouring, so as to prevent affecting the pouring of mold body 100.

[0035] Users can observe the pouring process of the mold body 100 through the observation window 200. For example, they can observe the connection between the feed port 120 on the mold body 100 and the injection molding machine, as well as the mold closing status of the mold body 100. This prevents molten material from leaking out of the cavity 130 during pouring, thus avoiding waste and reducing defects in the poured products. By reducing defects and waste during the pouring process, this mechanical structure helps improve production efficiency. Furthermore, the improved product quality reduces rework and scrap due to quality issues, thereby lowering production costs. The observation window 200 also allows users to observe whether molten material overflows at the pressure relief port 110 on the mold body 100, preventing damage to the vacuum chamber 300.

[0036] The observation window 200 makes it easier and faster to identify production problems, and its intuitive and clear display provides accurate information for troubleshooting. It also avoids repeatedly searching for the root cause of anomalies during production, saving costs.

[0037] like Figure 1As shown, in one embodiment, the sidewall 310 of the vacuum chamber 300 has a first end, a second end and a third end, the second end being located between the first end and the third end, the first end being the end of the sidewall 310 near the pressure relief port 110, and the third end being the end of the sidewall 310 near the feed port 120.

[0038] The observation components are at least multiple, with at least one observation window 200 located at the first end to facilitate observation of whether molten material overflows from the pressure relief port 110. Exemplarily, one observation window 200 is located at the first end. In another embodiment, two observation windows 200 are located at the first end. In yet another embodiment, three observation windows 200 are located at the first end. The multiple observation windows 200 allow operators to observe the situation at the pressure relief port 110 more comprehensively, enabling faster response and problem-solving. This helps reduce production downtime caused by inspections or adjustments, improving production efficiency. By rationally setting the position and number of observation windows 200, operators can more conveniently observe the pouring process and handle abnormalities promptly. This design considers the actual needs and usage habits of operators, contributing to improved user-friendliness and production efficiency.

[0039] An observation window 200 is provided at the first end of the side wall 310 of the vacuum chamber 300, allowing operators to observe in real time whether molten material is overflowing from the pressure relief port 110. This feature plays an important role in preventing molten material overflow, damage to the vacuum chamber 300, and production accidents. Once molten material overflow is detected, operators can take immediate measures, such as pausing the pouring process, adjusting pouring parameters, or checking the mold condition, to ensure production safety.

[0040] By monitoring the pressure relief port 110 in real time, factors that may lead to product quality problems can be identified and resolved promptly. For example, if the molten metal overflows from the pressure relief port 110 during the pouring process, it may contaminate the mold or vacuum chamber 300, thereby affecting the surface quality and dimensional accuracy of subsequent products. Therefore, this feature helps reduce the defect rate and improve product quality.

[0041] In one embodiment, at least one observation window 200 is located at the second end, allowing for a clearer view of the mold body 100's closing status. This is crucial for ensuring the accuracy and timeliness of mold closing, helping to prevent casting defects or product quality issues caused by poor mold closing. By observing the mold closing status in real time through the observation window 200, operators can promptly identify problems during the mold closing process, such as mold misalignment or loose mold closing, and take immediate measures to adjust or repair them. This helps prevent problems from escalating and ensures the smooth operation of the production process.

[0042] For example, one observation window 200 is provided at the second end. In another embodiment, two observation windows 200 are provided at the second end. In yet another embodiment, three observation windows 200 are provided at the second end. Providing multiple observation windows 200 at the second end can further improve the comprehensiveness and accuracy of observation. Different observation windows 200 can be used to observe different parts of the mold or different stages of mold closing, to meet the needs of different production scenarios.

[0043] For example, the fact that the second end is located between the first end and the third end does not mean that the second end is necessarily located in the middle of the side wall 310 of the vacuum chamber 300. The second end can also be set closer to the first end or the third end. That is, the second end can be offset relative to the middle position of the side wall 310 of the vacuum chamber 300 as needed. However, in general, the second end will be set in the middle position of the side wall 310 of the vacuum chamber 300. The position of the second end changes accordingly.

[0044] like Figure 1 As shown, in one embodiment, at least one observation window 200 is provided at the third end to facilitate observation of the docking of the feed port 120 on the mold body 100 with the injection machine.

[0045] For example, a viewing window 200 is provided at the third end. In another embodiment, two viewing windows 200 are provided at the third end. In yet another embodiment, three viewing windows 200 are provided at the third end.

[0046] By providing an observation window 200 at the third end, the operator can observe in real time the alignment of the feed port 120 on the mold body 100 with the injection molding machine. This helps ensure precise alignment between the injection molding machine and the mold, avoiding casting failures or product quality issues caused by poor alignment. Precise alignment helps ensure smooth injection of the melt and accurate filling of the mold during the casting process, thereby reducing the defect rate and improving product quality.

[0047] Through the observation window 200, operators can promptly detect problems during the casting process, such as leaks, blockages, or misalignments between the injection nozzle and the feed inlet 120 of the injection machine. Once a problem is detected, operators can immediately take measures to adjust or repair it, thereby preventing the problem from escalating and ensuring the smooth operation of the production process.

[0048] Real-time monitoring and timely intervention can reduce downtime caused by poor alignment between the injection molding machine and the mold. This helps improve production efficiency and reduce production costs.

[0049] like Figure 1As shown, in one embodiment, observation components are provided on both side walls 310 of the vacuum chamber 300.

[0050] By installing observation components on both side walls 310 of the vacuum chamber 300, the internal conditions of the vacuum chamber 300 can be observed from two different angles. This helps to gain a more comprehensive understanding of the working status inside the vacuum chamber 300, including the mold closing status and the progress of the casting process. The dual-side observation components allow operators to choose which angle to monitor from, or to observe from both angles simultaneously, improving the flexibility and accuracy of monitoring. Observation components such as the observation window 200 allow operators to observe the internal conditions of the vacuum chamber 300 in real time, which is crucial for ensuring the smooth operation of the production process. Through real-time observation, operators can promptly identify and resolve problems, avoiding potential risks in the production process.

[0051] When a malfunction or problem occurs inside the vacuum chamber 300, the dual-sided observation system helps operators quickly locate the problem. By observing from different angles, operators can more accurately determine the cause and location of the malfunction, allowing them to take appropriate corrective measures. Timely detection and resolution of problems helps reduce downtime and production losses caused by malfunctions, thereby reducing maintenance costs and improving production efficiency. By improving the comprehensiveness and accuracy of observation, the dual-sided observation system helps operators make decisions and adjustments more quickly, thus improving work efficiency and product quality.

[0052] In one embodiment, the observation window 200 includes a frame and a mirror. The frame is fixedly disposed at the observation through-hole, and the mirror is disposed within the inner frame of the frame. Exemplarily, the mirror is made of a transparent material, such as glass, plastic, or resin. During use, the situation inside the vacuum chamber 300 can be observed through the mirror. Observing the situation inside the vacuum chamber 300 through the mirror avoids the need for operators to directly open the vacuum chamber 300 or touch the internal items, thereby reducing the safety risks caused by improper operation or accidents.

[0053] For example, the frame is fixed to the observation through-hole on the vacuum chamber 300 by means of adhesive bonding, welding, or integral molding, ensuring good sealing between the observation window 200 and the vacuum chamber 300. Good sealing is key to maintaining the vacuum state inside the vacuum chamber 300, which helps to ensure the normal operation of the vacuum chamber 300 and extend its service life.

[0054] For example, the microscope body is fixed to the inner frame of the main frame by means of adhesive or snap-fit, making the replacement and maintenance of the microscope body relatively simple and convenient. When the microscope body is damaged or contaminated, it can be easily removed for cleaning or replacement, thereby ensuring the clarity and service life of the observation window 200.

[0055] In one embodiment, the mirror body is a plane mirror. The mirror body is made of a transparent material and, exemplarily, a plane mirror. This design allows the observation window 200 to adapt to different observation needs. The transparent material ensures good light transmission, while the plane mirror provides a clear image, helping the operator accurately determine the conditions inside the vacuum chamber 300.

[0056] In one embodiment, the mirror body is a convex mirror. A convex mirror can magnify the image, making it easier to observe details.

[0057] In one embodiment, the mirror body is a concave mirror. A concave mirror can be used for specific optical effects or viewing angles. This flexibility increases the practicality and range of applications of the observation window 200.

[0058] In another embodiment, the mirror body is provided with a plane mirror portion and a convex mirror portion. In another embodiment, the mirror body is provided with a plane mirror portion and a concave mirror portion. In another embodiment, the mirror body is provided with a convex mirror portion and a concave mirror portion. In yet another embodiment, the mirror body is provided with a plane mirror portion, a convex mirror portion, and a concave mirror portion.

[0059] In another embodiment, the frame is movably mounted at the observation port. This movable mounting allows it and the mirror to rotate at different angles, enabling multi-angle observation of the interior of the vacuum chamber 300. This flexibility allows the operator to adjust the observation angle as needed, providing a more comprehensive understanding of the conditions inside the vacuum chamber 300 and improving the accuracy and efficiency of the observation.

[0060] For example, the frame is sealed to the inner wall of the observation through-hole; although the frame is movable, the sealing fit with the inner wall of the observation through-hole still ensures a good seal between the observation window 200 and the vacuum chamber 300. This design prevents external gases or impurities from entering the vacuum chamber 300, ensuring the vacuum state inside the vacuum chamber 300, which helps maintain its normal operation and extend its service life.

[0061] In one embodiment, the observation assembly further includes a light-emitting element disposed at the observation hole and located within the vacuum chamber 300. The light-emitting element emits light and illuminates the mold body 100, providing sufficient light for observation. This helps improve the clarity of observation when light is insufficient or when clearer detail observation is required. Good lighting conditions help operators locate the areas requiring observation more quickly, reducing prolonged observation time and misjudgments caused by insufficient light, thereby improving operational efficiency.

[0062] In another embodiment, the light-emitting element is disposed on the frame. When the frame is movably positioned at the observation through-hole, the rotation of the frame causes the light-emitting element and the mirror to rotate. When the light-emitting element is disposed on the frame and rotates with the frame, multi-angle illumination can be achieved. This design allows the operator to adjust the illumination angle as needed for better observation of different parts of the mold body 100. Different observation tasks may require different lighting conditions. By adjusting the position and angle of the light-emitting element, various observation needs can be flexibly met, improving operational flexibility and adaptability.

[0063] In another embodiment, the light-emitting element is disposed on the inner wall of the vacuum chamber 300.

[0064] For example, the light-emitting element includes, but is not limited to: LED lamps, electron beam lamps, or vacuum light sources (such as xenon lamps, laser diodes, etc.).

[0065] In one embodiment, two or more light-emitting elements are provided and are equidistantly arranged around the circumference of the observation window 200. For example, two light-emitting elements are provided, and the two light-emitting elements are equidistantly arranged around the circumference of the observation window 200.

[0066] In another embodiment, three light-emitting elements are provided, and the three light-emitting elements are equidistantly arranged around the circumference of the observation window 200. In another embodiment, five light-emitting elements are provided, and the five light-emitting elements are equidistantly arranged around the circumference of the observation window 200. In yet another embodiment, ten light-emitting elements are provided, and the ten light-emitting elements are equidistantly arranged around the circumference of the observation window 200.

[0067] By using two or more light-emitting elements, the system can continue to provide light even if one element fails, ensuring the continuity of observation. This redundancy design improves the system's reliability and fault tolerance, reducing the risk of downtime due to the failure of a single light-emitting element.

[0068] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0069] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0070] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A vacuum casting apparatus, characterized in that, include: The mold body (100) is provided with a feed port (120) and a pressure relief port (110). A vacuum chamber (300), wherein the mold body (100) is disposed inside the vacuum chamber (300); An observation assembly, the observation assembly including an observation window (200), an observation through hole provided on the side wall (310) of the vacuum chamber (300), the observation window (200) being disposed at the observation through hole; The observation window (200) includes a frame and a mirror, the frame being disposed at the observation through hole and the mirror being disposed within the inner frame of the frame; The mirror body is a plane mirror, a convex mirror, or a concave mirror; The observation component also includes a light-emitting element located inside the vacuum chamber (300), which is capable of emitting light and illuminating the mold body (100).

2. The vacuum casting apparatus according to claim 1, characterized in that, The sidewall (310) of the vacuum chamber (300) has a first end, a second end and a third end, the second end being located between the first end and the third end, the first end being the end of the sidewall (310) near the pressure relief port (110), and the third end being the end of the sidewall (310) near the feed port (120); The number of observation components is at least multiple, and at least one of the observation windows (200) is located at the first end.

3. The vacuum casting apparatus according to claim 2, characterized in that, At least one of the observation windows (200) is provided at the second end.

4. The vacuum casting apparatus according to claim 3, characterized in that, At least one of the observation windows (200) is located at the third end.

5. The vacuum casting apparatus according to claim 4, characterized in that, The observation components are provided on the side walls (310) on both sides of the vacuum chamber (300).

6. The vacuum casting apparatus according to claim 1, characterized in that, Multiple light-emitting elements are provided and are equidistantly arranged around the circumference of the observation window (200).

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