A fully enclosed negative pressure centrifugal glass casting machine

Abstract

This utility model discloses a fully enclosed negative pressure centrifugal glass casting machine, including a mounting frame. A high-pressure recovery hopper is fixedly embedded in the surface of the mounting frame. A high-pressure forming chamber is connected to the upper end of the high-pressure recovery hopper. A servo motor is fixedly mounted on the lower surface of the high-pressure recovery hopper. A sealing cover is movably mounted on the upper port of the high-pressure forming chamber via a hinge. A glass window is fixedly embedded in the upper surface of the sealing cover. A PLC control panel is fixedly embedded in the upper surface of the sealing cover on one side of the glass window. A drive shaft is fixedly connected to the output end of the servo motor. The drive shaft extends through the high-pressure recovery hopper and into the high-pressure forming chamber, where a rotating disk is fixedly mounted at its upper end. This fully enclosed negative pressure centrifugal glass casting machine can significantly improve product quality, achieve precise temperature control, and has significant energy-saving and environmental protection benefits.

Description

Technical Field

[0001] This utility model relates to the technical field of glass casting equipment, and in particular to a fully enclosed negative pressure centrifugal glass casting machine. Background Technology

[0002] In the glass casting industry, most companies currently use semi-open centrifugal glass casting machines to process borate or phosphate glass. These semi-open casting machines suffer from structural openness, with some areas directly connected to the external environment, making them highly susceptible to external interference during production. In actual production, dust, particles, and other impurities from the outside enter the casting space with airflow. These impurities mix with the molten glass, forming defects such as bubbles and inclusions during product forming, severely affecting the quality and appearance of the glass products. Simultaneously, due to the heat dissipation characteristics of the semi-open structure, heat dissipates rapidly to the outside, making it difficult to maintain a stable temperature in the casting area. Uneven heating during the solidification process leads to deformation and cracking. Furthermore, for glass products with complex structures such as intricate openwork and multi-layered nesting, or those with stringent requirements for impurity content, semi-open casting machines cannot provide a stable and clean casting environment, making it difficult to meet the production demands of high-quality glass products. Although there have been some attempts to improve casting equipment in the existing technology, none of them have effectively solved the core problems such as poor environmental sealing, unstable temperature control and impurity interference. Therefore, we propose a fully enclosed negative pressure centrifugal glass casting machine. Utility Model Content

[0003] The main purpose of this invention is to provide a fully enclosed negative pressure centrifugal glass casting machine, which can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A fully enclosed negative pressure centrifugal glass casting machine includes a mounting frame. A high-pressure recovery hopper is fixedly embedded in the surface of the mounting frame. A high-pressure forming hopper is connected to the upper end of the high-pressure recovery hopper. A servo motor is fixedly mounted on the lower surface of the high-pressure recovery hopper. A sealing cover is movably mounted on the upper port of the high-pressure forming hopper via a hinge. A glass window is fixedly embedded in the upper surface of the sealing cover. A PLC control panel is fixedly embedded in the upper surface of the sealing cover on one side of the glass window. A drive shaft is fixedly connected to the output end of the servo motor. The drive shaft extends through the high-pressure recovery hopper and extends to the upper end of the high-pressure forming hopper, where a rotating disk is fixedly mounted. A mold is fixedly mounted on the upper surface of the rotating disk via bolts. Heating wires are fixedly mounted around the mold inside the high-pressure forming hopper, and the support points of the heating wires are fixed to the inner wall of the high-pressure forming hopper. An infrared temperature sensor is fixedly mounted on the inner wall of the high-pressure forming hopper. A high-pressure pipe is connected to the surface of the sealing cover, and the other end of the high-pressure pipe is connected to the output end of a negative pressure extraction system.

[0006] Preferably, the surface of the high-pressure recovery hopper is fixedly equipped with a discharge port, the upper surface of the sealing cover is fixedly equipped with a feed port, both the feed port and the discharge port are equipped with a cover, and the lower port of the feed port is located directly above the port of the mold.

[0007] Preferably, a latch is fixedly installed on the upper port edge of the high-pressure forming chamber, and three latches are provided. A pressure plate is fixedly installed on the edge of the sealing cover at the corresponding position of the latch.

[0008] Preferably, the PLC control panel is connected to the mains power via a power cord, and is electrically connected to the servo motor, heating wire, infrared temperature sensor, and negative pressure vacuum system via wires for control.

[0009] Preferably, the upper port of the high-pressure recovery hopper is connected to the high-pressure molding hopper, and the debris falling from the mold is discharged through the discharge port.

[0010] Preferably, there are three infrared temperature sensors, which monitor the temperature at different height levels of the mold.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this utility model, the fully enclosed negative pressure centrifugal glass casting machine (1) significantly improves product quality: the fully enclosed structure and negative pressure environment effectively isolate external impurities, greatly reducing defects such as bubbles and inclusions inside glass products. Compared with semi-open casting machines, the product qualification rate is increased by 30%-50%, which is especially suitable for casting high-end glass products with high sensitivity to impurities and can meet the market demand for high-quality glass products; (2) achieves precise temperature control: the heating and temperature control system achieves precise control of casting temperature through high-precision temperature sensors and intelligent control systems, avoiding uneven solidification of glass liquid caused by temperature fluctuations, effectively reducing defects such as product deformation and cracks, improving the molding quality and consistency of products, and enhancing the market competitiveness of enterprise products; (3) has significant energy-saving and environmental protection benefits: the good sealing performance reduces heat loss and energy consumption. Compared with semi-open casting machines, the energy utilization rate is increased by about 20%-30%; at the same time, the fully enclosed structure effectively reduces the emission of pollutants such as waste gas and dust during the production process, which meets the national environmental protection requirements and helps enterprises achieve green production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a fully enclosed negative pressure centrifugal glass casting machine according to the present invention;

[0014] Figure 2 This is a partial cross-sectional view of a fully enclosed negative pressure centrifugal glass casting machine according to the present invention.

[0015] In the diagram: 1. Mounting frame; 2. High-pressure recovery hopper; 21. Discharge port; 22. Cover; 3. High-pressure forming chamber; 31. Lock; 4. Servo motor; 5. Sealing cover; 51. Feed port; 52. Pressure plate; 6. Glass window; 7. PLC control panel; 8. Drive shaft; 9. Rotary disc; 10. Mold; 11. Heating wire; 12. Infrared temperature sensor; 13. Negative pressure extraction system; 14. High-pressure pipe. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Example 1:

[0018] like Figure 1-2As shown, a fully enclosed negative pressure centrifugal glass casting machine includes a mounting frame 1. A high-pressure recovery hopper 2 is fixedly embedded in the surface of the mounting frame 1. A high-pressure forming hopper 3 is connected to the upper end of the high-pressure recovery hopper 2. A servo motor 4 is fixedly mounted on the lower surface of the high-pressure recovery hopper 2. A sealing cover 5 is movably mounted on the upper port of the high-pressure forming hopper 3 via a hinge. A glass window 6 is fixedly embedded in the upper surface of the sealing cover 5. A PLC control panel 7 is fixedly embedded in the upper surface of the sealing cover 5 on one side of the glass window 6. The output end of the servo motor 4 is fixedly connected to... A drive shaft 8 is connected, which extends through the high-pressure recovery hopper 2 and into the high-pressure forming hopper 3. A rotating disk 9 is fixedly installed at the upper end of the drive shaft 8. A mold 10 is fixedly installed on the upper surface of the rotating disk 9 by bolts. A heating wire 11 is fixedly installed around the mold 10 inside the high-pressure forming hopper 3. The support point of the heating wire 11 is fixed to the inner wall of the high-pressure forming hopper 3. An infrared temperature sensor 12 is fixedly installed on the inner wall of the high-pressure forming hopper 3. A high-pressure pipe 14 is connected to the surface of the sealing cover 5. The other end of the high-pressure pipe 14 is connected to the output end of the negative pressure suction system 13.

[0019] The surface of the high-pressure recovery hopper 2 is fixedly equipped with a discharge port 21, and the upper surface of the sealing cover 5 is fixedly equipped with a feed port 51. Both the feed port 51 and the discharge port 21 are equipped with a cover 22. The lower port of the feed port 51 is located directly above the port of the mold 10.

[0020] Specifically, after the sealing cap 5 is closed and fixed, material can be fed into the mold 10 through the feed port 51. After feeding, the feed port 51 and the discharge port 21 are sealed by the sealing cap 22 to prepare for vacuuming.

[0021] A latch 31 is fixedly installed on the upper port edge of the high-pressure forming chamber 3. There are three latches 31. A pressure plate 52 is fixedly installed on the edge of the sealing cover 5 at the corresponding position of the latch 31.

[0022] Specifically, after the sealing cover 5 is closed, the locking plate 52 is pressed by the latch 31, so that the edge between the sealing cover 5 and the latch 31 is sealed, which also prepares for vacuuming.

[0023] The PLC control panel 7 is connected to the mains power via a power cord. The PLC control panel 7 is electrically connected to the servo motor 4, heating wire 11, infrared temperature sensor 12 and negative pressure vacuum system 13 via wires for control.

[0024] Specifically, after the PLC control panel 7 is connected to the mains power, it controls the negative pressure vacuum system 13 to start and vacuum the inside of the high-pressure forming chamber 3 and the high-pressure recovery chamber 2. After vacuuming, the heating wire 11 and the infrared temperature sensor 12 start simultaneously. After the glass raw material melts, the servo motor 4 drives the transmission shaft 8 to rotate, which causes the rotating disk 9 to drive the mold 10 to rotate. Through the action of negative pressure centrifugation, the mold is evenly filled into various parts, resulting in more uniform molding. During rotation, the heating wire 11 continuously heats and keeps the mold 10 warm. At the same time, the three infrared temperature sensors 12 continuously monitor the temperature values ​​of different parts of the mold 10 and feed them back to the PLC control panel 7. The PLC control panel 7 then controls the start and stop of the heating wire 11 according to the appropriate temperature, thereby achieving the purpose of precise temperature control.

[0025] The upper port of the high-pressure recovery hopper 2 is connected to the high-pressure molding hopper 3, and the debris falling from the mold 10 is discharged through the discharge port 21.

[0026] Specifically, during the high-speed rotation of the mold 10, the ejected debris will fall into the high-pressure recovery hopper 2 for collection, and after molding is completed, it can be discharged from the outlet 21 by opening the cover 22.

[0027] Three infrared temperature sensors 12 are provided, and they monitor the temperature at different height levels of the mold 10 respectively;

[0028] Specifically, infrared temperature sensors 12 are installed at different positions on the mold 10 to make the temperature monitoring more accurate and avoid the occurrence of poor product appearance due to overheating or underheating.

[0029] It should be noted that this utility model is a fully enclosed negative pressure centrifugal glass casting machine. During use, the feed inlet 51 is opened, and the prepared borate glass or phosphate glass raw material is placed into the mold 10. The mold 10 is screwed onto the rotating disk 9 through a hole at its bottom. Then, the feed inlet 51 and the outlet 21 are sealed with a cover 22. Next, casting parameters, including the centrifugal rotating table speed, negative pressure value, heating temperature, and holding time, can be set on the PLC control panel 7 according to the characteristics of the glass raw material and the product requirements. The negative pressure extraction system 13 is activated to extract air from the inside of the casting machine, creating a set negative pressure environment to provide low-pressure conditions for glass casting and reduce bubble formation. Then, the heating and temperature control system is activated, and the heating element 11 begins to heat the glass raw material. An infrared temperature sensor 12 monitors the temperature of the mold 10 in real time. The data is fed back to the intelligent control system, which automatically adjusts the power of the heating element heating wire 11 according to the preset temperature parameters to make the temperature rise steadily to the set value and maintain a constant temperature. When the glass raw material is completely melted, the servo motor 4 is started to make the rotating disk 9 rotate, thereby making the mold 10 rotate at the set speed. Under the combined action of negative pressure and centrifugal force, the glass liquid is evenly filled into all parts of the mold, completing the casting process. During the monitoring and adjustment stage, the intelligent control system in the PLC control panel 7 monitors parameters such as temperature, speed, and negative pressure in real time. If abnormal parameters occur, the system will automatically adjust. At the same time, the operator can observe the internal casting situation through the glass window 6. If necessary, the parameters can be manually fine-tuned through the touch screen. During the cooling and unloading stage, heating and rotation are stopped. After cooling, the lock 31 is opened to take out the formed glass product, completing the entire casting process.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A totally enclosed negative pressure centrifugal force glass casting machine characterized by: The system includes a mounting frame (1), on which a high-pressure recovery hopper (2) is fixedly mounted. A high-pressure forming hopper (3) is connected to the upper end of the high-pressure recovery hopper (2). A servo motor (4) is fixedly mounted on the lower surface of the high-pressure recovery hopper (2). A sealing cover (5) is movably mounted on the upper end of the high-pressure forming hopper (3) via a hinge. A glass window (6) is fixedly mounted on the upper surface of the sealing cover (5). A PLC control panel (7) is fixedly mounted on one side of the glass window (6) on the upper surface of the sealing cover (5). A drive shaft (8) is fixedly connected to the output end of the servo motor (4). The rotating shaft (8) extends through the high pressure recovery hopper (2) and extends into the high pressure forming hopper (3). A rotating disk (9) is fixedly installed at the upper end of the rotating disk (9). A mold (10) is fixedly installed on the upper surface of the rotating disk (9) by bolts. A heating wire (11) is fixedly installed inside the high pressure forming hopper (3) around the mold (10). The support point of the heating wire (11) is fixed to the inner wall of the high pressure forming hopper (3). An infrared temperature sensor (12) is fixedly installed on the inner wall of the high pressure forming hopper (3). A high pressure pipe (14) is connected to the surface of the sealing cover (5). The other end of the high pressure pipe (14) is connected to the output end of the negative pressure suction system (13).

2. A totally enclosed negative pressure centrifugal force glass casting machine as claimed in claim 1, wherein: The surface of the high-pressure recovery hopper (2) is fixedly equipped with a discharge port (21), and the upper surface of the sealing cover (5) is fixedly equipped with a feed port (51). Both the feed port (51) and the discharge port (21) are equipped with a cover (22). The lower port of the feed port (51) is located directly above the port of the mold (10).

3. A totally enclosed negative pressure centrifugal force glass casting machine as claimed in claim 2, wherein: The upper port edge of the high-pressure forming chamber (3) is fixedly installed with a buckle (31), and there are three buckles (31). The edge of the sealing cover (5) is fixedly installed with a pressure plate (52) at the corresponding position of the buckle (31).

4. A totally enclosed negative pressure centrifugal force glass casting machine as claimed in claim 3, wherein: The PLC control panel (7) is connected to the mains power via a power cord. The PLC control panel (7) is electrically connected to the servo motor (4), heating wire (11), infrared temperature sensor (12) and negative pressure suction system (13) via wires for control.

5. A totally enclosed negative pressure centrifugal force glass casting machine as claimed in claim 4, wherein: The upper port of the high-pressure recovery hopper (2) is connected to the high-pressure molding hopper (3), and the debris falling from the mold (10) is discharged through the discharge port (21).

6. A totally enclosed negative pressure centrifugal force glass casting machine as claimed in claim 5, wherein: The infrared temperature sensor (12) is provided in three parts, and each part monitors the temperature at different height levels of the mold (10).

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