Thin film sealing and attaching device in V-method casting

Abstract

The invention discloses a thin film sealing and attaching device in V-method casting, and relates to the technical field of V-method casting equipment. The device comprises a base, a travelling crane, a mounting plate, a template and a moving frame, the moving frame directly faces and is movably arranged on the mounting plate, a lifting mechanism for driving the moving frame to move relative to the mounting plate is arranged on the mounting plate, the mounting plate directly faces the moving frame and is fixedly connected with a heating mechanism, and a plurality of communicating ports are formed in the bottom of the moving frame at intervals; a plurality of communicating ports are formed in the template, an air suction channel communicating with the communicating ports is formed in the moving frame, an air suction pipe communicating with the air suction channel is fixedly connected to the moving frame, the embedded frame is slidably connected to the inner wall of the moving frame, an embedded groove is embedded in the template right facing the embedded frame, and an elastic assembly for pushing the sliding block to move towards the embedded groove is arranged on the moving frame. When the movable frame is attached to the template, the elastic assembly can push the embedding frame to move, so that the embedding frame is embedded into the embedding groove, a film is further fixed, and the sealing performance of film attachment is improved.

Description

Technical Field

[0001] The present invention belongs to the field of V-method casting equipment, and specifically relates to a film sealing and fitting device in V-method casting. Background Art

[0002] In the casting industry, as an advanced casting process, V-method casting has been widely used in many fields due to its significant advantages such as high dimensional accuracy of castings, good surface quality, and low sand-iron ratio. The core of V-method casting is to make the plastic film closely adhere to the surface of the model through a vacuum system to form a sealed cavity, then fill with dry sand and compact it, and finally pour the molten metal while maintaining the vacuum state. After the casting solidifies, the vacuum is released to make the sand mold collapse. During the V-method casting film pasting process, the four corners of the film are often directly hung on the screws at the four corners of the clamping frame, and the film is not flattened, which easily affects the integrity of the film.

[0003] A Chinese patent with the patent publication number CN113770305B discloses a film sealing and fitting device in V-method casting. This device fixes the film through a clamping mechanism and is convenient for flattening the film, ensuring the integrity of the film. However, the operation process of fixing the film on the installation structure and the top of the casting table body of this device is relatively cumbersome, greatly reducing the efficiency of covering the film on the model.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a film sealing and fitting device in V-method casting, solving the problems raised in the above background art.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A film sealing and fitting device in V-method casting, comprising: a base, a traveling crane arranged on the base, a mounting plate movably arranged on the traveling crane, and a template arranged opposite to the mounting plate, a moving frame, which is in a square frame structure with a hollow interior, the moving frame is arranged opposite to and movably on the mounting plate, a lifting mechanism for driving the moving frame to move relative to it is arranged on the mounting plate, a heating mechanism is fixedly connected to the mounting plate opposite to the moving frame, a plurality of communication ports are arranged at intervals along the circumferential direction of the bottom of the moving frame, an air suction channel communicated with the plurality of communication ports is arranged in the moving frame, an air suction pipe communicated with the air suction channel is fixedly connected to the moving frame, and the air suction pipe is communicated with an external air extraction pump;

[0008] The embedding frame is slidably connected to the inner wall of the moving frame. The embedding frame extends along the circumferential direction of the moving frame. The embedding frame is in a square frame structure with a hollow center. A plurality of sliding blocks are fixedly connected to the embedding frame. The moving frame is provided with sliding grooves for the sliding blocks to slide. The template is provided with an embedding groove opposite to the embedding frame. The moving frame is provided with an elastic component for pushing the sliding blocks to move towards the embedding groove.

[0009] Optionally, the elastic components are provided in the same quantity as the sliding blocks. The elastic component includes:

[0010] A fixed plate fixedly installed on the moving frame relative to the sliding block;

[0011] At least one fixed rod penetrates and is movably arranged on the fixed plate. The first end of the fixed rod is fixedly connected to the sliding block. A limiting block is fixedly connected to the second end of the fixed rod. A spring is arranged between the limiting block and the fixed plate. The spring is sleeved on the fixed rod.

[0012] Optionally, a first sealing gasket is fixedly connected to one end of the moving frame in contact with the template. The first sealing gasket extends along the circumferential direction of the moving frame. A through hole communicating with the communication port is provided through the first sealing gasket.

[0013] Optionally, a second sealing gasket is fixedly connected to the embedding groove opposite to the embedding frame. The cross section of the second sealing gasket is a U-shaped structure with an opening at one end facing the embedding frame.

[0014] Optionally, an installation groove for installing the heating mechanism is embedded in the installation plate. A funnel-shaped exhaust hopper is defined in the installation plate. The axis of the exhaust hopper is arranged relative to the center of the template. A plurality of exhaust ports communicating the installation groove with the exhaust hopper are provided through the installation frame. An exhaust passage communicating with the exhaust hopper is provided in the installation plate. An air inlet pipe communicating with the exhaust passage is fixedly connected to the installation frame. The air inlet pipe is communicated with an external air supply device.

[0015] Optionally, the plurality of exhaust ports are arranged at intervals in a diffusion shape along the direction from the axis to the edge of the exhaust hopper.

[0016] Optionally, the lifting mechanism includes:

[0017] A plurality of guide rods penetrate and are movably arranged on the installation plate. The first ends of the plurality of guide rods are fixedly connected to the moving frame. A U-shaped frame is fixedly connected to the second ends of the plurality of guide rods;

[0018] A cylinder is fixedly connected to the installation plate. The telescopic end of the cylinder is fixedly connected to the U-shaped frame.

[0019] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time:

[0020] 1. By providing an elastic component, an embedding frame, and an embedding groove, the movement of the moving frame is driven by a lifting mechanism, and at the same time, the film is adsorbed and fixed through a communication port. When the moving frame fits with the template, the elastic component can push the embedding frame to move, so that the embedding frame is embedded into the embedding groove, realizing further fixation of the film, improving the sealing performance of the film fitting. The overall structure has a high degree of automation, is simple and convenient to operate, can effectively realize the softening and adsorption fitting of the film, ensure that the film can be tightly attached to the template, and further improve the fitting effect of the film;

[0021] 2. By providing a first gasket and a second gasket, the sealing performance between the moving frame and the template is enhanced through the setting of the first gasket and the second gasket, reducing the possibility of air leakage, contributing to improving the effect of film adsorption fitting, ensuring the sealing of the mold, and thus improving the quality of the casting;

[0022] 3. By providing an exhaust funnel, an exhaust port, an exhaust passage, and an intake pipe, air is supplied to the installation groove through the intake pipe, the exhaust passage, and the exhaust funnel, and the air is discharged through a plurality of exhaust ports. The funnel-shaped exhaust funnel enables the air to flow more concentratedly towards the center of the template, and the plurality of exhaust ports evenly diffuse the air into the installation groove, thereby evenly dissipating heat or adjusting the temperature of the heating mechanism.

[0023] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is the present invention Figure 1 a schematic diagram of the structure from another perspective;

[0027] Figure 3 is a front view of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the moving frame and the heating mechanism of the present invention;

[0029] Figure 5 is the present invention Figure 4 an enlarged schematic diagram of part A in

[0030] Figure 6 Structural schematic diagram of the embedding groove and the second gasket of the present invention;

[0031] Figure 7 For the embedding frame of the present invention Figure 1 in the structural schematic diagram;

[0032] Figure 8 For the present invention Figure 7 enlarged structural schematic diagram at position B;

[0033] Figure 9 Structural schematic diagram of the exhaust air passage and the exhaust air funnel of the present invention;

[0034] Figure 10 Structural schematic diagram of the air outlet of the present invention;

[0035] Figure 11 Structural schematic diagram of the air intake passage and the communication port of the present invention.

[0036] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0037] 1. Base; 2. Traveling crane; 3. Mounting plate; 4. Lifting mechanism; 41. I-shaped frame; 42. Guide rod; 43. Cylinder; 5. Moving frame; 6. Template; 7. Elastic component; 71. Fixed plate; 72. Spring; 73. Limit block; 74. Fixed rod; 8. Embedding frame; 9. Communication port; 10. Embedding groove; 11. Heating mechanism; 12. Inlet pipe; 13. Installation groove; 14. Gasket; 15. Through hole; 16. Suction pipe; 17. Slide block; 18. Slide groove; 19. Air outlet; 20. Exhaust air funnel; 21. Exhaust air passage; 22. Air intake passage; 23. Second gasket.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed description of the specific implementation

[0039] Now, the present invention will be further described in detail with reference to the accompanying drawings.

[0040] Please refer to Figure 1-11As shown in the figure, in this embodiment, a film sealing and fitting device in V-process casting is provided, which includes a base 1, a traveling crane 2 arranged on the base 1, a mounting plate 3 movably arranged on the traveling crane 2, and a template 6 arranged opposite to the mounting plate 3. A moving frame 5, which has a rectangular structure, is arranged opposite to and movably on the mounting plate 3. A lifting mechanism 4 for driving the moving frame 5 to move relative to it is arranged on the mounting plate 3. A heating mechanism 11 is fixedly connected to the mounting plate 3 opposite to the moving frame 5. A plurality of communication ports 9 are arranged at intervals along the circumferential direction of the bottom of the moving frame 5. An air suction channel 22 communicated with the plurality of communication ports 9 is arranged in the moving frame 5. An air suction pipe 16 communicated with the air suction channel 22 is fixedly connected to the moving frame 5. The air suction pipe 16 is communicated with an external air extraction pump. An embedding frame 8 is slidably connected to the inner wall of the moving frame 5. The embedding frame 8 extends along the circumferential direction of the moving frame 5. The embedding frame 8 has a rectangular structure. A plurality of groups of sliders 17 are fixedly connected to the embedding frame 8. A sliding groove 18 for the sliders 17 to slide is arranged on the moving frame 5. An embedding groove 10 is embedded in the template 6 opposite to the embedding frame 8. An elastic component 7 for pushing the sliders 17 to move towards the embedding groove 10 is arranged on the moving frame 5.

[0041] Specifically, in the initial state, the air suction pipe 16 is communicated with the external air extraction pump. The traveling crane 2 drives the mounting frame and the moving frame 5 to move to the film area. Then, the lifting mechanism 4 drives the moving frame 5 to move towards the film. When the moving frame 5 fits the film, the embedding frame 8 is squeezed, so that the elastic component 7 is compressed. At this time, the external air extraction pump is started. The air extraction pump generates suction force, and through the air suction channel 22, the plurality of communication ports 9 generate suction force on the film. At this time, the film is attached and connected to the embedding frame 8 (note: at this time, the elastic force of the elastic component 7 is less than the suction force of the communication ports 9 to prevent the elastic component 7 from pushing the embedding frame 8 to push out the film). After that, the lifting mechanism 4 drives the moving frame 5 to reset, and at the same time, the traveling crane 2 drives the mounting frame to the position directly above the template 6. At this time, the heating mechanism 11 heats the film. After the heating is completed, the lifting mechanism 4 drives the moving frame 5 to move towards the template 6, so that the film covers the model on the template 6. When the moving frame 5 fits the template 6, the external air extraction pump stops working. And because the film deforms after being heated, at this time, the elastic component 7 can push the embedding frame 8 to move, so that the embedding frame 8 is embedded into the embedding groove 10, realizing further fixation of the film, improving the sealing performance of the film fitting. After that, the air extraction device (not shown in the figure) is started for air extraction operation, so that the film fits on the model of the template 6. The overall structure has a high degree of automation, simple and convenient operation, can effectively realize the softening and adsorption fitting of the film, ensure that the film can be tightly attached to the template 6, and further improve the fitting effect of the film. The design of the embedding frame 8 being embedded into the embedding groove 10 further enhances the sealing effect of the film at the edge of the template 6, prevents air leakage, and improves the sealing performance and stability of the mold during the casting process.

[0042] It should be noted that, in the present embodiment, the template 6 includes a model and a base plate. The model is usually made hollow to form an exhaust chamber, and exhaust holes are provided on the surface to facilitate film adsorption. The four walls of the sand box are sealed interlayers to form a connected exhaust chamber. The four inner walls have exhaust holes and are equipped with porous air filter plates and metal wire meshes to ensure exhaust and prevent fine sand from being sucked into the vacuum pump. When exhausting, the exhaust structure of the template 6 and the sand box work together to make the film fit closely with the two. Of course, the installation and working principle of the exhaust device are prior art, which is mainly composed of a vacuum pump, a vacuum tank, a filter tank, a distribution tank and connecting pipelines. The vacuum pump extracts air in the mold to form a pressure difference inside and outside the mold. The vacuum tank is used to stabilize the pressure of the vacuum system and buffer pressure fluctuations. The filter tank can prevent dust or Fine sand invades the vacuum pump to ensure its normal operation. Of course, you can also refer to the public document with patent announcement number CN113770305B; secondly, the heating mechanism 11 generally adopts an electric heating device of a far-infrared radiation plate, and bakes the film to make it softened. In order to make the film heated evenly, the far-infrared radiation plates are usually divided into several groups. By adjusting the voltage supplied by each group of radiation plates, the heat of the entire heater is uniform, so that the film is softened evenly at a suitable temperature. Of course, the principle of film forming is to heat a plastic film with a large elongation and a high plastic deformation rate to 80℃-120℃ with a heater to soften it, and then cover it on the surface of the mold. A large number of vents are opened on the mold. Through these vents, under a vacuum suction force of 200-400mmHg, the film is tightly attached to the surface of the model to form a cavity contour consistent with the shape of the mold; further, in this embodiment, the lifting mechanism 4 can be a screw lift, an electric lift, etc.

[0043] In this embodiment, if Figure 7 and Figure 8 As shown, the elastic component 7 is arranged in equal amounts to the slider 17, and the elastic component 7 includes a fixed plate 71, which is fixedly mounted on the movable frame 5 relative to the slider 17, and at least one fixed rod 74, which passes through and is movably arranged on the fixed plate 71. The first end of the fixed rod 74 is fixedly connected to the slider 17, and the second end of the fixed rod 74 is fixedly connected to the limiting block 73. A spring 72 is provided between the limiting block 73 and the fixed plate 71, and the spring 72 is sleeved on the fixed rod 74. Specifically, when the film is heated and deformed by the heating mechanism 11, the spring 72 can pull the fixed rod 74 to move, so that the fixed rod 74 pushes the slider 17 to move, and the slider 17 drives the embedding frame 8 to move toward the embedding groove 10, thereby embedding the film into the embedding groove 10, thereby improving the sealing between the film and the template 6.

[0044] In this embodiment, if Figure 4 and Figure 5As shown, a first sealing gasket 14 is fixedly connected to one end of the moving frame 5 in contact with the template 6. The first sealing gasket 14 extends along the circumferential direction of the moving frame 5. A through hole 15 communicating with the communication port 9 is provided through the first sealing gasket 14. Specifically, the first sealing gasket 14 enhances the sealing performance between the moving frame 5 and the template 6, reduces the possibility of air leakage, helps improve the effect of film adsorption and fitting, ensures the sealing of the mold, and thus improves the quality of the casting.

[0045] In this embodiment, as Figure 6 shown, a second sealing gasket 23 is fixedly connected to the embedding groove 10 opposite to the embedding frame 8. The cross-section of the second sealing gasket 23 is a U-shaped structure with an opening at one end facing the embedding frame 8. Specifically, the U-shaped structure design of the second sealing gasket 23 increases the sealing area and effect, improves the sealing performance between the embedding frame 8 and the embedding groove 10, further enhances the sealing of the entire device, and helps improve the casting accuracy and quality.

[0046] In this embodiment, as Figure 4 、 Figure 9 and Figure 10 shown, an installation groove 13 for installing the heating mechanism 11 is embedded in the installation plate 3. A ventilation hopper 20 with a funnel-shaped structure is defined in the installation plate 3. The axis of the ventilation hopper 20 is set relative to the center of the template 6. A plurality of air vents 19 communicating the installation groove 13 with the ventilation hopper 20 are provided through the installation frame. A ventilation channel 21 communicating with the ventilation hopper 20 is provided in the installation plate 3. An intake pipe 12 communicating with the ventilation channel 21 is fixedly connected to the installation frame. The intake pipe 12 is communicated with an external air supply device. The plurality of air vents 19 are arranged at intervals in a diffused manner along the direction from the axis to the edge of the ventilation hopper 20. Specifically, the external air supply device supplies air into the installation groove 13 through the intake pipe 12, the ventilation channel 21 and the ventilation hopper 20, and the air is discharged through the plurality of air vents 19. The funnel-shaped ventilation hopper 20 enables the air to flow more concentratedly towards the center of the template 6, and the plurality of air vents 19 uniformly diffuse the air into the installation groove 13, so as to uniformly dissipate heat or adjust the temperature of the heating mechanism 11. Secondly, when heating the film by the heating mechanism 11, by supplying air into the ventilation hopper 20, the air is discharged along the air vents 19 and blown towards the film, which is beneficial to the expansion of the film and improves the deformation efficiency of the film. It should be noted that when acting on the film, it is necessary to ensure that the air flow generated by the external air supply device will not damage the film to ensure the normal operation of the device. Of course, this diffused arrangement of the air vents 19 further enhances the uniformity of air distribution, ensures the uniformity of temperature adjustment around the heating mechanism 11, so that the film is heated more uniformly during the heating process, which is beneficial to improving the effect and quality of film sealing and fitting.

[0047] In this embodiment, as Figure 1As shown in the figure, the lifting mechanism 4 includes: multiple guide rods 42, which penetrate and are movably arranged on the mounting plate 3. The first ends of the multiple guide rods 42 are fixedly connected to the moving frame 5, and the second ends of the multiple guide rods 42 are fixedly connected to an I-shaped frame 41. A cylinder 43 is fixedly connected to the mounting plate 3, and the telescopic end of the cylinder 43 is fixedly connected to the I-shaped frame 41. Specifically, the telescopic end of the cylinder 43 drives the I-shaped frame 41 to move. The I-shaped frame 41 is fixedly connected to the guide rods 42, and the guide rods 42 penetrate the mounting plate 3 and are fixedly connected to the moving frame 5. Therefore, the telescopic movement of the cylinder 43 is converted into the lifting movement of the moving frame 5 relative to the mounting plate 3 through the I-shaped frame 41 and the guide rods 42. The arrangement of the multiple guide rods 42 ensures the stability of the moving frame 5 during the lifting process, prevents the moving frame 5 from shifting or shaking during the lifting process, ensures that the moving frame 5 can accurately approach or move away from the template 6, improves the accuracy and reliability of the film sealing and fitting operation. At the same time, as a power source, the cylinder 43 has the advantages of simple operation and rapid movement, and can effectively improve production efficiency.

[0048] Working principle:

[0049] In the initial state, the suction pipe 16 is connected to an external air pump. The traveling crane 2 drives the mounting frame and the moving frame 5 to move to the film area, and then drives the moving frame 5 to move towards the film through the lifting mechanism 4. When the moving frame 5 fits the film, the embedding frame 8 is squeezed, so that the elastic component 7 is compressed. At this time, the external air pump is started, and the air pump generates suction force, and through the suction channel 22, a suction force on the film is generated at multiple communication ports 9. At this time, the film is attached to the embedding frame 8 (note: at this time, the elastic force of the elastic component 7 is less than the suction force of the communication ports 9 to prevent the elastic component 7 from pushing the embedding frame 8 to push out the film). Then, the lifting mechanism 4 drives the moving frame 5 to reset, and at the same time, the traveling crane 2 drives the mounting frame to directly above the template 6. At this time, the heating mechanism 11 heats the film. After the heating is completed, the lifting mechanism 4 drives the moving frame 5 to move towards the template 6, so that the film covers the model on the template 6. When the moving frame 5 fits the template 6, the external air pump stops working, and since the film deforms after being heated, at this time, the elastic component 7 can push the embedding frame 8 to move, so that the embedding frame 8 is embedded into the embedding groove 10, realizing further fixation of the film, improving the sealing performance of the film fitting. Then, by starting the air extraction device (not shown in the figure) for air extraction operation, the film is attached to the model of the template 6. The overall structure has a high degree of automation, simple and convenient operation, can effectively realize the softening and adsorption fitting of the film, ensure that the film can be closely attached to the template 6, and further improve the fitting effect of the film. The design of the embedding frame 8 being embedded into the embedding groove 10 further enhances the sealing effect of the film at the edge of the template 6, prevents air leakage, and improves the sealing performance and stability of the mold during the casting process.

[0050] The present invention is not limited to the above embodiments. Anyone should be aware that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A thin film sealing and laminating device in V-method casting, comprising a base (1), a crane (2) arranged on the base (1), a mounting plate (3) movably arranged on the crane (2), and a template (6) arranged opposite to the mounting plate (3), characterized in that: The movable frame (5) is a U-shaped structure, the movable frame (5) is directly opposite to and movably arranged on the mounting plate (3), the mounting plate (3) is provided with a lifting mechanism (4) for driving the movable frame (5) to move relative to the mounting plate (3), the mounting plate (3) is directly opposite to the movable frame (5) and is fixedly connected to a heating mechanism (11), a plurality of communication ports (9) are provided at intervals at the bottom of the movable frame (5) along its circumference direction, an air suction channel (22) connected to the plurality of communication ports (9) is provided inside the movable frame (5), an air suction pipe (16) connected to the air suction channel (22) is fixedly connected to the movable frame (5), and the air suction pipe (16) is connected to an external air pump; An embedding frame (8) is slidably connected to the inner wall of the movable frame (5); the embedding frame (8) is extended along the circumference direction of the movable frame (5); the embedding frame (8) is a U-shaped structure; a plurality of groups of sliders (17) are fixedly connected to the embedding frame (8); the movable frame (5) is provided with a slide groove (18) for the sliders (17) to slide; the template (6) is embedded with an embedding groove (10) facing the embedding frame (8); and the movable frame (5) is provided with an elastic component (7) for pushing the sliders (17) to move in the direction of the embedding groove (10).

2. The thin film sealing and laminating device in V-method casting according to claim 1, characterized in that: The elastic component (7) and the slider (17) are arranged in equal amounts, and the elastic component (7) comprises: A fixed plate (71) fixedly mounted on the movable frame (5) relative to the sliding block (17); At least one fixing rod (74) passes through and is movably arranged on the fixing plate (71); a first end of the fixing rod (74) is fixedly connected to the sliding block (17); a second end of the fixing rod (74) is fixedly connected to a limiting block (73); a spring (72) is arranged between the limiting block (73) and the fixing plate (71); and the spring (72) is sleeved on the fixing rod (74).

3. The thin film sealing and laminating device in V-method casting according to claim 2, characterized in that: A first sealing gasket (14) is fixedly connected to one end of the movable frame (5) in contact with the template (6); the first sealing gasket (14) is extended along the circumference direction of the movable frame (5); and a through hole (15) communicating with the communication port (9) is penetrated through the first sealing gasket (14).

4. The thin film sealing and laminating device in V-method casting according to claim 2, characterized in that: A second sealing gasket (23) is fixedly connected in the embedding groove (10) facing the embedding frame (8); the cross section of the second sealing gasket (23) is a U-shaped structure with an opening at one end facing the embedding frame (8).

5. The thin film sealing and laminating device in V-method casting according to claim 1, characterized in that: The mounting plate (3) is embedded with a mounting groove (13) for mounting the heating mechanism (11); a funnel-shaped exhaust scoop (20) is defined in the mounting plate (3); the axis of the exhaust scoop (20) is arranged relative to the center of the template (6); a plurality of exhaust ports (19) are provided through the mounting frame for connecting the mounting groove (13) with the exhaust scoop (20); an exhaust passage (21) connected to the exhaust scoop (20) is provided in the mounting plate (3); an air intake pipe (12) connected to the exhaust passage (21) is fixedly connected to the mounting frame; the air intake pipe (12) is connected to an external air supply device.

6. The thin film sealing and laminating device in V-method casting according to claim 5, characterized in that: The plurality of exhaust ports (19) are arranged at intervals in a diffused manner along the direction from the axis to the edge of the exhaust scoop (20).

7. The thin film sealing and laminating device in V-method casting according to claim 1, characterized in that: The lifting mechanism (4) comprises: A plurality of guide rods (42) passing through and movably arranged on the mounting plate (3), wherein the first ends of the plurality of guide rods (42) are fixedly connected to the movable frame (5), and the second ends of the plurality of guide rods (42) are fixedly connected to the workpiece frame (41); A cylinder (43) is fixedly connected to the mounting plate (3), and a telescopic end of the cylinder (43) is fixedly connected to the workpiece frame (41).

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