Squeezing and drawing forming die for antenna housing

Abstract

The extrusion-drawing forming die comprises a front outer die module, a rear outer die module, a guide feeding section, a heating and heat preservation forming section and a sealing strip forming section. The guiding feeding section comprises a feeding support, a feeding adjusting frame is arranged on the feeding support in the vertical direction, and a feeding core rod is installed in the middle of the feeding adjusting frame. The heating and heat preservation forming section comprises a forming pipe and a forming support, a high-temperature oil way is distributed in the forming pipe, a horizontal silica gel wheel and a vertical silica gel wheel are installed on the forming support, and the horizontal silica gel wheel and the vertical silica gel wheel are both located on the outer side of the forming pipe. The sealing strip forming section comprises a sealing strip inner block, a sealing strip outer block and a sealing strip injection opening, the sealing strip injection opening is formed in the outer side of the sealing strip outer block, and the sealing strip inner block and the sealing strip outer block are both connected to the rear outer mold module. According to the extrusion-drawing forming die for the antenna housing, the two glass fiber sheets are heated to form the antenna housing, and the sealing strips are additionally arranged at the fusion positions of the glass fiber sheets for decoration, so that the attractiveness of the antenna housing is improved, and meanwhile, the original production quality is kept.

Description

Technical Field

[0001] This invention relates to the technical field of radomes, and more particularly to a pultrusion molding die for radomes. Background Technology

[0002] A radome is a structure that protects an antenna system from the influence of the external environment. Electrically, it possesses excellent electromagnetic wave penetration characteristics, and mechanically, it can withstand the effects of harsh external environments. Outdoor antennas are typically placed in the open air, directly exposed to natural elements such as storms, snow, dust storms, and solar radiation, leading to reduced antenna accuracy, shortened lifespan, and poor operational reliability.

[0003] A conventional radome is made by bending two flat sheets into an arc shape and joining them together, one above the other, so that the two sides of the sheets are fused together by heat processing to form a whole. However, during the forming process, the outer edge marks between the sheets are obvious, which affects the appearance. Summary of the Invention

[0004] One object of the present invention is to provide a pultrusion molding die for an radome, which adds a sealing strip molding structure, covers the molding marks and heat sealing marks of the radome, and improves the molding quality of the radome.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A pultrusion molding die for an antenna radome includes a front outer mold module, a rear outer mold module, a guide feeding section, a heating and heat preservation molding section, and a sealing strip molding section;

[0007] The guide feeding section includes a feeding bracket, on which a feeding adjustment frame is arranged vertically, and a feeding core rod is installed in the middle of the feeding adjustment frame;

[0008] The front outer mold module includes a front module, and the front end of the heating and heat preservation molding section is located inside the front module;

[0009] The heating and heat preservation molding section includes a molding tube and a molding support. The molding tube has high-temperature oil channels distributed inside. The molding support is equipped with a horizontal silicone wheel and a vertical silicone wheel. Both the horizontal silicone wheel and the vertical silicone wheel are located on the outside of the molding tube.

[0010] The rear outer mold module includes a rear module, and the rear end of the heating and heat preservation molding section is located inside the rear module;

[0011] The sealing strip forming section includes an inner sealing strip block, an outer sealing strip block, and a sealing strip injection port. The sealing strip injection port is located outside the outer sealing strip block. Both the inner sealing strip block and the outer sealing strip block are connected to the rear outer mold module.

[0012] As a preferred technical solution, an adjusting screw is installed at the upper end of the feeding bracket, an adjusting handwheel is connected to the upper end of the adjusting screw, and the lower end of the adjusting screw is bearing connected to the feeding adjusting frame. The inner diameter of the feeding adjusting frame at the front end is larger than the inner diameter of the feeding adjusting frame at the rear end.

[0013] As a preferred technical solution, a concentric module is provided on the inner side of the feed adjustment frame, and the feed core rod extends from the concentric module.

[0014] As a preferred technical solution, the high-temperature oil circuit includes a side high-temperature oil circuit and upper and lower high-temperature oil circuits, wherein the temperature of the side high-temperature oil circuit is greater than the temperature of the upper and lower high-temperature oil circuits.

[0015] As a preferred technical solution, a heat insulation plate is provided on the inner side of the forming tube, and the heat insulation plate isolates the side of the forming tube from the top and bottom edges of the forming tube.

[0016] As a preferred technical solution, the rear module has cooling water channels distributed inside.

[0017] As a preferred technical solution, the formed tube includes a main tube and an extension tube, and an extension mounting plate is connected between the main tube and the extension tube. The two ends of the extension mounting plate are respectively located inside the main tube and inside the extension tube.

[0018] As a preferred technical solution, the outer block of the seal is provided with an injection channel inside, the outer side of the injection channel is connected to the seal injection port, and two seal outlets extend from the inner side of the injection channel, with the seal outlets located on the outer side of the inner block of the seal.

[0019] The beneficial effects of the present invention are as follows: It provides a pultrusion molding die for an antenna radome, which heats two pieces of fiberglass sheets into an antenna radome and adds a sealing strip at the fusion position of the fiberglass sheets for decoration, thereby improving the aesthetics of the antenna radome while maintaining the original production quality. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of a pultrusion molding die for an antenna radome as described in the embodiment;

[0022] Figure 2 This is an overall cross-sectional view of a pultrusion die for an antenna radome as described in the embodiment;

[0023] Figure 3 This is a three-dimensional structural diagram of the guide feed section described in the embodiment;

[0024] Figure 4 This is a three-dimensional structural diagram of the heating and heat preservation forming section described in the embodiment;

[0025] Figure 5 This is an internal cross-sectional view of the heating and heat preservation forming section described in the embodiment;

[0026] Figure 6 This is a cross-sectional view of the seal forming section described in the embodiment;

[0027] Figure 7 This is a three-dimensional structural diagram of the radome described in the embodiment.

[0028] Figures 1 to 7 middle:

[0029] 1. Front outer mold module; 2. Rear outer mold module; 3. Guide feeding section; 4. Heating and heat preservation molding section; 5. Seal forming section; 6. Feeding bracket; 7. Feeding adjustment frame; 8. Feeding mandrel; 9. Front module; 10. Molding tube; 11. Molding bracket; 12. Horizontal silicone wheel; 13. Vertical silicone wheel; 14. Rear module; 15. Inner block of seal; 16. Outer block of seal; 17. Seal injection port; 18. Adjusting screw; 19. Adjusting handwheel; 20. Concentric module; 21. Side high-temperature oil circuit; 22. Upper and lower high-temperature oil circuit; 23. Heat insulation plate; 24. Cooling water circuit; 25. Main pipe; 26. Extension pipe; 27. Extension mounting plate; 28. Injection channel; 29. ​​Seal outlet; 30. Antenna cover; 31. Seal. Detailed Implementation

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 7As shown, in this embodiment, a pultrusion molding die for an antenna radome includes a front outer mold module 1, a rear outer mold module 2, a guide feed section 3, a heating and heat preservation molding section 4, and a sealing strip molding section 5; the guide feed section 3 includes a feed support 6, on which a feed adjustment frame 7 is arranged vertically, and a feed mandrel 8 is installed in the middle of the feed adjustment frame 7; the front outer mold module 1 includes a front module 9, and the front end of the heating and heat preservation molding section 4 is located inside the front module 9; the heating and heat preservation molding section 4 includes a molding tube 10 and a molding support 11, the molding tube... The interior of the molding tube 10 has high-temperature oil channels. A horizontal silicone wheel 12 and a vertical silicone wheel 13 are installed on the molding bracket 11. Both the horizontal silicone wheel 12 and the vertical silicone wheel 13 are located on the outside of the molding tube 10. The rear outer mold module 2 includes a rear module 14. The rear end of the heating and heat preservation molding section 4 is located inside the rear module 14. The sealing strip molding section 5 includes a sealing strip inner block 15, a sealing strip outer block 16, and a sealing strip injection port 17. The sealing strip injection port 17 is located on the outside of the sealing strip outer block 16. Both the sealing strip inner block 15 and the sealing strip outer block 16 are connected to the rear outer mold module 2.

[0032] Two fiberglass sheets are fed backward in an up-down manner. The position of the feed mandrel 8 is adjusted to ensure concentricity. The feed adjustment frame 7 bends the sheet into an arc shape. The front module 9 on the front outer mold module 1 begins to heat and shape the sheet. Then, the two sheets enter the heating and heat preservation forming section 4. The high-temperature oil circuit inside the forming tube 10 controls the outer sheet to maintain a high temperature, which facilitates shape maintenance and bonding. The outer side of the sheet is guided by the high-temperature resistant horizontal silicone wheel 12 and vertical silicone wheel 13. In the rear module 14 of the rear outer mold module 2, it is shaped at room temperature. The sheets form the basic shape of the antenna radome 30. Then, fiberglass material of the same material as the sheet is injected into the sealing injection port 17. The outer sealing block 16 and the inner sealing block 15 form the protruding position that is bonded between the sheets, covering the outer edge of the sheet so that the forming position is not exposed.

[0033] An adjusting screw 18 is installed at the upper end of the feeding bracket 6. An adjusting handwheel 19 is connected to the upper end of the adjusting screw 18. The lower end of the adjusting screw 18 is connected to the feeding adjusting frame 7 by a bearing. The inner diameter of the feeding adjusting frame 7 at the front end is larger than the inner diameter of the feeding adjusting frame 7 at the rear end. A concentric module 20 is provided on the inner side of the feeding adjusting frame 7. A feeding core rod 8 extends from the concentric module 20.

[0034] By manually adjusting the handwheel 19, the height of the feed adjustment frame 7 is controlled, and the concentric module 20 is used to bend the sheet material into an arc shape. The feed mandrel 8 ensures the parallelism of the feed. Several feed adjustment frames 7 form a funnel shape with a larger front and a smaller back to guide the sheet material in, resulting in smoother conveying.

[0035] The high-temperature oil circuit includes a side high-temperature oil circuit 21 and an upper and lower high-temperature oil circuit 22. The temperature of the side high-temperature oil circuit 21 is higher than that of the upper and lower high-temperature oil circuit 22. The sheets at the upper and lower positions do not overlap in thermoforming, so the temperature can be lower. The sheets at the two sides are stacked together and need to be bonded together by high-temperature forming, so the temperature needs to be higher. If the oil circuit temperatures in all four directions are the same, the two sheets will stick together, resulting in a poor structure.

[0036] A heat insulation plate 23 is provided on the inner side of the forming tube 10. The heat insulation plate 23 isolates the side of the forming tube 10 from the upper and lower sides of the forming tube 10, and prevents the upper and lower temperatures from affecting each other with the left and right temperatures.

[0037] The rear module 14 has cooling water channels 24 inside. After the two sheets are formed together in the heating and heat preservation forming section 4, they need to be fixed at room temperature at the position of the module, so cooling is required.

[0038] The forming tube 10 includes a main tube 25 and an extension tube 26. An extension mounting plate 27 is connected between the main tube 25 and the extension tube 26. The two ends of the extension mounting plate 27 are located inside the main tube 25 and the extension tube 26, respectively. If the length of the main tube 25 is insufficient according to the length of the sheet forming, the extension mounting plate 27 is used to extend the length of the extension tube 26 to form the length.

[0039] An injection channel 28 is provided inside the outer block 16 of the seal. The outer side of the injection channel 28 is connected to the seal injection port 17. Two seal outlets 29 extend from the inner side of the injection channel 28. The seal outlets 29 are located on the outer side of the inner block 15 of the seal. Fiberglass material of the same material as the sheet is added into the injection channel 28 from the outside. After being guided, it is led out from the bonding position on both sides of the upper and lower sheets to the seal outlets 29. The seal 31 is formed on the sheet and covers the bonding marks.

[0040] It should be stated that the above specific embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto. Within the scope of the technology disclosed in the present invention, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of the present invention.

Claims

1. An extrusion-drawing die for a radome, characterized by, The application relates to a front and rear outer mold module, a guide feeding section, a heating and heat-preserving forming section and a seal strip forming section. The guide feeding section comprises a feeding support, a feeding adjusting frame is arranged on the feeding support along the vertical direction, and a feeding mandrel is arranged in the middle part of the feeding adjusting frame. The front outer mold module comprises a front module, and the front end of the heating and heat-preserving forming section is arranged in the interior of the front module. The heating and heat-preserving forming section comprises a forming pipe and a forming support, high-temperature oil channels are arranged in the interior of the forming pipe, horizontal silica gel wheels and vertical silica gel wheels are arranged on the forming support, and the horizontal silica gel wheels and the vertical silica gel wheels are arranged on the outside of the forming pipe. The rear outer mold module comprises a rear module, and the rear end of the heating and heat-preserving forming section is arranged in the interior of the rear module. The seal strip forming section comprises a seal strip inner block, a seal strip outer block and a seal strip injection inlet, the seal strip injection inlet is arranged on the outside of the seal strip outer block, and the seal strip inner block and the seal strip outer block are connected to the rear outer mold module.

2. The pultrusion die for a radome according to claim 1, wherein An adjusting screw is arranged on the upper end of the feeding support, an adjusting hand wheel is connected to the upper end of the adjusting screw, a bearing is arranged on the lower end of the adjusting screw and connected to the feeding adjusting frame, the inner diameter of the feeding adjusting frame at the front end is larger than that of the feeding adjusting frame at the rear end.

3. The pultrusion die for a radome according to claim 1, wherein A concentric module is arranged on the inner side of the feeding adjusting frame, and the feeding mandrel extends from the concentric module.

4. The pultrusion die for a radome according to claim 1, wherein The high-temperature oil channels comprise side high-temperature oil channels and up-and-down high-temperature oil channels, and the temperature of the side high-temperature oil channels is higher than that of the up-and-down high-temperature oil channels.

5. The pultrusion die for a radome according to claim 1, wherein An insulating plate is arranged on the inner side of the forming pipe, and the insulating plate separates the side of the forming pipe from the up-and-down sides of the forming pipe.

6. The pultrusion die for a radome according to claim 1, wherein A cooling water channel is arranged in the interior of the rear module.

7. The pultrusion die for a radome according to claim 1, wherein The forming pipe comprises a main pipe and an extended pipe, an extended mounting plate is arranged between the main pipe and the extended pipe, and the two ends of the extended mounting plate are arranged in the interior of the main pipe and the interior of the extended pipe.

8. The pultrusion die for a radome of claim 1, wherein, An injection flow channel is arranged in the interior of the seal strip outer block, the outer side of the injection flow channel is communicated with the seal strip injection inlet, two seal strip outlets are arranged on the inner side of the injection flow channel, and the seal strip outlets are arranged on the outer side of the seal strip inner block.

Images