Vacuum adsorption structure of rapid forming mold cavity

Abstract

The utility model discloses a rapid forming mold cavity vacuum adsorption structure which comprises an air source pipe, a pneumatic electromagnetic valve, a cable, a time relay, a vacuum generator, a vacuum port, a vacuum pipe and a vaporized material intercepting structure. The electromagnetic valve is installed on the rear portion of the air source pipe, and the top end of the cable is connected to the electromagnetic valve; the time relay is connected to the pneumatic electromagnetic valve through a cable, the vacuum generator is installed at the front end of the air source pipe, the vacuum opening is formed in the bottom of the vacuum generator, the vacuum pipe is installed at the bottom of the vacuum generator through the vacuum opening, and the vaporized matter intercepting structure is installed at the bottom of the vacuum pipe. The utility model solves the problem that materials easy to gasify enter a vacuum system and are possibly condensed and deposited on a pipeline or other key components to cause blockage. And the situation not only can reduce the efficiency of the system, but also can cause equipment faults.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a vacuum adsorption structure for a rapid prototyping mold cavity. Background Technology

[0002] Vacuum adsorption structures for rapid prototyping mold cavities are a technology used to improve molding quality and accelerate the production process. The core of this technology lies in using a vacuum pump or similar equipment to extract air from the mold cavity, creating a negative pressure environment. When preheated material (such as thermoplastic sheets or composite materials) is placed on the mold, activating the vacuum system rapidly draws the material in and tightly adheres it to the shape of the mold cavity. This not only helps reduce air bubbles and defects within the material but also ensures dimensional accuracy and surface finish of the final product.

[0003] When using vacuum adsorption technology to process materials, there are indeed some special considerations, especially when dealing with easily vaporized materials such as waxes. Waxes may vaporize when heated or exposed to a vacuum environment, and if this vaporized wax enters the vacuum system, it may condense and deposit on pipes or other critical components, causing blockages. This not only reduces system efficiency but can also lead to equipment malfunctions. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum adsorption structure for the cavity of a rapid prototyping mold to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a vacuum adsorption structure for a rapid prototyping mold cavity, comprising an air source pipe, a pneumatic solenoid valve, a cable, a time relay, a vacuum generator, a vacuum port, a vacuum tube, and a vaporized material interception structure. The solenoid valve is installed at the rear of the air source pipe, the top of the cable is connected to the solenoid valve, the time relay is connected to the pneumatic solenoid valve via the cable, the vacuum generator is installed at the front end of the air source pipe, the vacuum port is installed at the bottom of the vacuum generator, the vacuum tube is installed at the bottom of the vacuum generator via the vacuum port, and the vaporized material interception structure is installed at the bottom of the vacuum tube.

[0006] Based on the above technical solution, the vaporized substance interception structure includes a box body, an interface, a gas duct, a cover plate, a sealing ring, a support column, an adsorption head, and a filter element. The box body has an interface at the rear top, and a vacuum tube is connected to the box body through the interface. The gas duct is installed at the front end of the box body. A sealing ring is installed at the front end of the cover plate, and the cover plate is installed at the rear end opening of the box body through the sealing ring. The support column is fixed to the middle of the front end of the cover plate. The adsorption head is installed in the front part of the gas duct through the support column, and the filter element is installed in the rear part of the gas duct through the support column.

[0007] Based on the above technical solution, the cover plate is used to load and unload the adsorption head and the filter element by means of the support column.

[0008] Compared with the prior art, the present invention has the following advantages: The present invention installs a vaporization interception structure between the vacuum generators used to connect the cavity, and intercepts the vaporized material by using a filter element, while the structure is simple and easy to replace. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the vaporization interception structure of this utility model.

[0011] Figure 3 This is a schematic diagram of the support column structure of this utility model.

[0012] In the diagram: 1. Air source pipe, 2. Pneumatic solenoid valve, 3. Cable, 4. Time relay, 5. Vacuum generator, 6. Vacuum port, 7. Vacuum tube, 8. Vacuum interception structure, 9. Box body, 10. Interface, 11. Air duct, 12. Cover plate, 13. Sealing ring, 14. Support column, 15. Adsorption head, 16. Material hanging filter element. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1 to 3 As shown, a vacuum adsorption structure for a rapid prototyping mold cavity includes an air source pipe 1, a pneumatic solenoid valve 2, a cable 3, a time relay 4, a vacuum generator 5, a vacuum port 6, a vacuum tube 7, and a vaporized material interception structure 8. The solenoid valve 2 is installed at the rear of the air source pipe 1, and the top end of the cable 3 is connected to the solenoid valve 2. The time relay 4 is connected to the pneumatic solenoid valve 2 through the cable 3. The vacuum generator 5 is installed at the front end of the air source pipe 1, the vacuum port 6 is installed at the bottom of the vacuum generator 5, the vacuum tube 7 is installed at the bottom of the vacuum generator 5 through the vacuum port 6, and the vaporized material interception structure 8 is installed at the bottom of the vacuum tube 7.

[0015] The vaporized substance interception structure 8 includes a box body 9, an interface 10, a gas duct 11, a cover plate 12, a sealing ring 13, a support column 14, an adsorption head 15, and a filter element 16. The box body 9 has an interface 10 at the rear top, and a vacuum tube 7 is connected to the box body 9 through the interface 10. The gas duct 11 is installed at the front end of the box body 9. The sealing ring 13 is installed at the front end of the cover plate 12, and the cover plate 12 is installed at the rear end opening of the box body 9 through the sealing ring 13. The support column 14 is fixed to the middle of the front end of the cover plate 12. The adsorption head 15 is installed in the front part of the gas duct 11 through the support column 14. The filter element 16 is installed in the rear part of the gas duct 11 through the support column 14.

[0016] The cover plate 12 is used to load and unload the adsorption head 15 and the filter element 16 via the support column 14.

[0017] The working principle of this invention is as follows: The housing 9 is connected to the exhaust port of the rapid prototyping mold via the air conduit 11, which connects to the cavity. The system is connected to a compressed air supply source via the air source pipe 1. In the initial state, the pneumatic solenoid valve 2 is closed to prevent gas from flowing to the vacuum generator 5. When workpiece adsorption is required, the control system sends a signal to the time relay 4 via the cable 3, thereby activating the pneumatic solenoid valve 2. This process can be achieved through programming or manual operation, depending on the application requirements. Once the pneumatic solenoid valve 2 is activated, it allows compressed air to flow from the air source pipe 1 into the vacuum generator 5. The vacuum generator uses fluid dynamics principles to convert the high-speed flowing compressed air into a vacuum, thereby generating negative pressure at the vacuum port 6. Gas and vapors in the cavity enter the air conduit 11 due to the negative pressure. When passing through the material hanging filter element 16, the vapors condense and hang on the material hanging filter element 16. The material hanging filter element 16 can be replaced by opening the cover plate 12, reducing the deposition of vapors on the vacuum system.

[0018] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A vacuum adsorption structure of a rapid prototyping mold cavity, comprising an air source pipe (1), a pneumatic electromagnetic valve (2), a cable (3), a time relay (4), a vacuum generator (5), a vacuum port (6), a vacuum pipe (7), and a vapor interception structure (8), characterized in that: The gas source pipe (1) rear installation solenoid valve (2), the cable (3) top end connected to solenoid valve (2), the time relay (4) through cable (3) connected to pneumatic solenoid valve (2), the vacuum generator (5) is installed in the gas source pipe (1) front end, the vacuum port (6) is installed in the vacuum generator (5) bottom, the vacuum pipe (7) through the vacuum port (6) is installed in the vacuum generator (5) bottom, the vaporization intercept structure (8) is installed in the vacuum pipe (7) bottom.

2. The vacuum suction structure of a mold cavity for rapid prototyping according to claim 1, wherein: The vaporization intercept structure (8) includes box (9), interface (10), air path guide pipe (11), cover plate (12), sealing ring (13), support column (14), adsorption head (15), hanging material filter element (16), the box (9) top rear interface (10) is opened, and the vacuum pipe (7) is connected to the box (9) through the interface (10), the air path guide pipe (11) is installed in the box (9) front end, the cover plate (12) front end installs sealing ring (13), and the cover plate (12) is installed in the box (9) rear opening through the sealing ring (13), the support column (14) is fixed in the cover plate (12) front end middle part, the adsorption head (15) is installed in the air path guide pipe (11) inside front part through the support column (14), the hanging material filter element (16) is installed in the air path guide pipe (11) inside rear part through the support column (14).

3. The vacuum chucking structure for a mold cavity of a rapid prototyping mold according to claim 2, wherein: The cover plate (12) through the support column (14) dismounts adsorption head (15) and hanging material filter element (16).

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