Film pressing device for microwave foam antenna housing

Abstract

The utility model relates to the technical field of microwave antenna auxiliary processing equipment, and provides a film pressing device for a microwave foam radome, which comprises an upper fixing plate and a lower pressing plate, the lower surface of the upper fixing plate is fixedly connected with a movable column, the outer surface of the movable column is slidably connected with an upper pressing plate, and the lower surface of the upper pressing plate is slidably connected with a lower pressing plate. The lower surface of the upper pressing plate is fixedly connected with an upper die, and the lower surface of the upper die is fixedly connected with a convex arc plate; the upper surface of the lower pressing plate is fixedly connected with a lower die, and the upper surface of the lower die is fixedly connected with a concave arc plate. Through the arrangement of the air guide channel, when the equipment carries out pressing, high-pressure air can be input into the pressing cavity in time, pressing of a film is more appropriate, the possibility of generation of bubbles and wrinkles is reduced, through the arrangement of the clamping sleeve, when the equipment carries out pressing, the upper die and the lower die can be fixed through the clamping block and the moving column in time, and the pressing efficiency is improved. Accidental movement of the upper die and the lower die during pressing is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of microwave antenna auxiliary processing equipment, and in particular relates to a film pressing device for a microwave foam antenna cover. Background Art

[0002] As microwave antennas gain access to more and more frequency bands, higher requirements are placed on microwave radomes. Microwave radomes that meet multi-band requirements require specialized foam combinations. To enhance the waterproofing and strength of microwave foam radomes, a thin film is bonded to the foam base.

[0003] Patent application number 201922105886.7 discloses a film laminating device for a microwave foam antenna cover. The device comprises a frame and a hydraulic laminating mechanism. The frame comprises a base, a top seat, and a lifting seat disposed between the base and the top seat. The hydraulic laminating mechanism comprises a hydraulic cylinder, an upper die, and a lower die. The hydraulic cylinder is vertically arranged, with its cylinder body fixed to the top seat. The piston rod of the hydraulic cylinder extends vertically downward and is fixedly connected to the lifting seat. The upper die is fixed to the lower edge of the lifting seat, with an arc-shaped concave surface on its bottom surface. The lower die is fixed to the upper edge of the base, with an arc-shaped convex surface on its top surface. A laminating cavity is formed between the arc-shaped concave and convex surfaces for laminating the film to the microwave foam antenna cover. This utility model can improve the consistency of adhesion between the film and the foam substrate, thereby increasing the yield rate of microwave foam antennas with film attached.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: during use, during the pressing process, the two curved surfaces are made of rigid materials, and the microwave foam antenna cover cannot be fully pressed together, resulting in the inevitable presence of bubbles and wrinkles after pressing, affecting the performance of the antenna after pressing.

[0005] Therefore, a film pressing device for a microwave foam antenna cover is proposed to solve the above problems. Utility Model Content

[0006] The utility model proposes a film pressing device for a microwave foam antenna cover, which solves the problem in the related art that during the pressing process, the two curved surfaces are made of rigid materials, and the microwave foam antenna cover cannot be pressed fully and tightly, resulting in the inevitable presence of bubbles and wrinkles after pressing, which affects the performance of the antenna after pressing.

[0007] The technical solution of the utility model is as follows: A film pressing device for a microwave foam antenna cover comprises: an upper fixed plate and a lower pressing plate, wherein the lower surface of the upper fixed plate is fixedly connected to a movable column, the outer surface of the movable column is slidably connected to the upper pressing plate, the lower surface of the upper pressing plate is fixedly connected to an upper mold, and the lower surface of the upper mold is fixedly connected to a convex arc plate;

[0008] The upper surface of the lower pressure plate is fixedly connected to the lower mold, and the upper surface of the lower mold is fixedly connected to the concave arc plate. An air guide channel is opened inside the upper pressure plate, the upper mold, the lower mold and the lower pressure plate. One end of the air guide channel is opened on one side of the upper pressure plate and the lower pressure plate, and the other end is opened at the highest point of the convex arc plate and the lowest point of the concave arc plate.

[0009] Preferably, a fixed groove is provided on the outer wall of the movable column, a clamping sleeve is fixedly connected to the upper surface of the upper pressure plate, a pneumatic rod is fixedly connected to the inside of the clamping sleeve, the output end of the pneumatic rod is fixedly connected to a block, and movable plates are fixedly connected on both sides of the block, and the movable plate and the clamping sleeve are connected by a spring, and the input end of the pneumatic rod is connected to the branch end of the air guide channel.

[0010] Preferably, a limiting ring is fixedly connected to the lower surface of the upper mold, and a groove corresponding to the limiting ring is opened inside the lower mold.

[0011] Preferably, a lower fixing plate is fixedly connected to the lower surface of the lower pressing plate, and the lower fixing plate is fixed to the upper fixing plate via a movable column.

[0012] Preferably, a hydraulic rod is fixedly connected to the upper surface of the upper fixed plate, a through hole corresponding to the output rod of the hydraulic rod is opened inside the upper fixed plate, the output end of the hydraulic rod is fixedly connected to a branch block, and the lower surface of the branch block is fixedly connected to the upper surface of the upper pressure plate.

[0013] Preferably, the air guide channel is opened on one side of the upper pressing plate and the lower pressing plate and is fixedly connected to an air guide pipe, and one end of the air guide pipe is fixedly connected to an air inlet head.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] By setting up the air guide channel, high-pressure gas can be timely input into the pressing chamber when the equipment is pressing, so that the pressing of the film is more close and the possibility of bubbles and wrinkles is reduced. By setting up the clamping sleeve, the upper and lower molds can be fixed in time by the clamping block and the movable column when the equipment is pressing, so that there will be no accidental movement of the upper and lower molds during pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0018] Figure 2 This is a bottom-up three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the upper pressing plate proposed in the present invention;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the ferrule proposed in the utility model;

[0021] Figure 5 This is a schematic cross-sectional structural diagram of the air guide channel proposed in the present invention.

[0022] In the figure: 1. Upper fixed plate; 2. Lower fixed plate; 3. Moving column; 4. Hydraulic rod; 5. Fixed groove; 6. Branch block; 7. Upper pressure plate; 8. Upper die; 9. Limiting ring; 10. Convex arc plate; 11. Lower pressure plate; 12. Lower die; 13. Concave arc plate; 14. Air guide tube; 15. Air inlet head; 16. Air guide channel; 17. Pneumatic rod; 18. Block; 19. Spring; 20. Moving plate; 21. Card sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1 -5. A film pressing device for a microwave foam antenna cover, comprising: an upper fixed plate 1 and a lower pressing plate 11. The lower surface of the upper fixed plate 1 is fixedly connected to a movable column 3. The outer surface of the movable column 3 is slidably connected to an upper pressing plate 7. The lower surface of the upper pressing plate 7 is fixedly connected to an upper mold 8. The lower surface of the upper mold 8 is fixedly connected to a convex arc plate 10.

[0026] The upper surface of the lower pressure plate 11 is fixedly connected to the lower mold 12, and the upper surface of the lower mold 12 is fixedly connected to the concave arc plate 13. An air guide channel 16 is opened inside the upper pressure plate 7, the upper mold 8, the lower mold 12 and the lower pressure plate 11. One end of the air guide channel 16 is opened on one side of the upper pressure plate 7 and the lower pressure plate 11, and the other end is opened at the highest point of the convex arc plate 10 and the lowest point of the concave arc plate 13.

[0027] The technical solution provided in this embodiment is: first, the air inlet head 15 is connected to the air pressure source, and then the foam antenna cover with the film is placed on the concave arc plate of the lower mold 12, and the switch of the hydraulic rod 4 is started. Driven by the output rod of the hydraulic cylinder 4, the upper mold 8 moves downward, so that the bottom of the foam substrate is pressurized and slightly compressed. When the limiting ring 9 of the upper mold 8 moves to the bottom of the indentation opened by the lower mold 12, the movement is stopped, and then the air pressure source is started. The air pressure will be output through the air guide channel 16, and further uniform force is applied to the surface of the film, making the film fit more evenly and firmly.

[0028] Example 2

[0029] Based on Example 1, in this embodiment: a fixed groove 5 is opened on the outer wall of the movable column 3, a clamping sleeve 21 is fixedly connected to the upper surface of the upper pressure plate 7, a pneumatic rod 17 is fixedly connected to the inside of the clamping sleeve 21, the output end of the pneumatic rod 17 is fixedly connected to a clamping block 18, and a movable plate 20 is fixedly connected to both sides of the clamping block 18. The movable plate 20 and the clamping sleeve 21 are connected by a spring 19, and the input end of the pneumatic rod 17 is connected to the branch end of the air guide channel 16.

[0030] The technical solution provided by this embodiment is as follows: after the air pressure is delivered in the air guide channel 16, the air pressure will be delivered to the inside of the pneumatic rod 17 along the branch of the air guide channel 16. The output of the pneumatic rod 17 causes the block 18 to move forward and be stuck in the fixed groove 5 opened on the outside of the movable column 3 to avoid the undesigned movement of the upper fixed plate 1 during pressing. After the pressing is completed, the air pressure source stops the air pressure delivery, and the spring 19 will pull back the movable plate 20 fixed on the outer surface of the block 18, so that the block 18 returns to its original position, and then the hydraulic rod 4 is recovered.

[0031] Furthermore, a fixed groove 5 is provided on the outer wall of the movable column 3, a clamping sleeve 21 is fixedly connected to the upper surface of the upper pressure plate 7, a pneumatic rod 17 is fixedly connected to the inside of the clamping sleeve 21, an output end of the pneumatic rod 17 is fixedly connected to a block 18, and movable plates 20 are fixedly connected to both sides of the block 18. The movable plate 20 and the clamping sleeve 21 are connected by a spring 19, and the input end of the pneumatic rod 17 is connected to the branch end of the air guide channel 16.

[0032] Specifically, the limiting mechanism formed above limits the upper pressing plate 7 to a specific position during pressing, thereby preventing accidental loosening during pressing.

[0033] Furthermore, a limiting ring 9 is fixedly connected to the lower surface of the upper mold 8 , and a groove corresponding to the limiting ring 9 is formed inside the lower mold 12 .

[0034] Specifically, by providing the limiting ring 9 and the corresponding groove, when the device performs the pressing action, no excessive force is generated on the material, thereby avoiding damage to the material.

[0035] Furthermore, the lower surface of the lower pressing plate 11 is fixedly connected to the lower fixing plate 2 , and the lower fixing plate 2 is fixed to the upper fixing plate 1 via a movable column 3 .

[0036] Specifically, by fixing the movable column 3, the upper pressing plate 7 and the lower pressing plate 11 are placed in parallel positions, so that the equipment can move more smoothly when operating.

[0037] Furthermore, a hydraulic rod 4 is fixedly connected to the upper surface of the upper fixed plate 1, and a through hole corresponding to the output rod of the hydraulic rod 4 is opened inside the upper fixed plate 1. The output end of the hydraulic rod 4 is fixedly connected to a branch block 6, and the lower surface of the branch block 6 is fixedly connected to the upper surface of the upper pressure plate 7.

[0038] Specifically, the hydraulic rod 4 provides sufficient power for the equipment during operation, making the pressing of the equipment more thorough.

[0039] Furthermore, an air guide channel 16 is opened on one side of the upper pressing plate 7 and the lower pressing plate 11 and is fixedly connected to an air guide pipe 14 , and one end of the air guide pipe 14 is fixedly connected to an air inlet head 15 .

[0040] Specifically, by providing the air guide tube 14 , the air pressure output by the upper pressing plate 7 and the lower pressing plate 11 are made the same, so that the film is more thoroughly adhered to the surface of the microwave foam antenna cover.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A film laminating device for a microwave foam antenna cover, comprising: An upper fixed plate (1) and a lower pressing plate (11), characterized in that the lower surface of the upper fixed plate (1) is fixedly connected to a movable column (3), the outer surface of the movable column (3) is slidably connected to an upper pressing plate (7), the lower surface of the upper pressing plate (7) is fixedly connected to an upper mold (8), and the lower surface of the upper mold (8) is fixedly connected to a convex arc plate (10); The upper surface of the lower pressing plate (11) is fixedly connected to the lower die (12), and the upper surface of the lower die (12) is fixedly connected to the concave arc plate (13). An air guide channel (16) is provided inside the upper pressing plate (7), the upper die (8), the lower die (12), and the lower pressing plate (11). One end of the air guide channel (16) is provided on one side of the upper pressing plate (7) and the lower pressing plate (11), and the other end is provided at the highest point of the convex arc plate (10) and the lowest point of the concave arc plate (13).

2. The film pressing device for a microwave foam antenna cover according to claim 1, characterized in that: The outer wall of the movable column (3) is provided with a fixed groove (5), the upper surface of the upper pressure plate (7) is fixedly connected with a clamping sleeve (21), the interior of the clamping sleeve (21) is fixedly connected with a pneumatic rod (17), the output end of the pneumatic rod (17) is fixedly connected with a clamping block (18), the two sides of the clamping block (18) are fixedly connected with a movable plate (20), the movable plate (20) and the clamping sleeve (21) are connected by a spring (19), and the input end of the pneumatic rod (17) is connected to the branch end of the air guide channel (16).

3. The film pressing device for a microwave foam antenna cover according to claim 1, characterized in that: The lower surface of the upper die (8) is fixedly connected with a limiting ring (9), and the interior of the lower die (12) is provided with a groove corresponding to the limiting ring (9).

4. The film pressing device for a microwave foam antenna cover according to claim 1, characterized in that: The lower surface of the lower pressing plate (11) is fixedly connected to a lower fixing plate (2), and the lower fixing plate (2) is fixed to the upper fixing plate (1) via a movable column (3).

5. The film pressing device for a microwave foam antenna cover according to claim 1, characterized in that: The upper surface of the upper fixed plate (1) is fixedly connected to a hydraulic rod (4); a through hole corresponding to an output rod of the hydraulic rod (4) is provided inside the upper fixed plate (1); the output end of the hydraulic rod (4) is fixedly connected to a branch block (6); the lower surface of the branch block (6) is fixedly connected to the upper surface of the upper pressure plate (7).

6. The film laminating device for a microwave foam antenna cover according to claim 1, characterized in that: The air guide channel (16) is opened on one side of the upper pressing plate (7) and the lower pressing plate (11) and is fixedly connected to an air guide pipe (14), and one end of the air guide pipe (14) is fixedly connected to an air inlet head (15).

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