Ceramic sintering furnace for ceramic antenna

Abstract

The ceramic sintering furnace for the ceramic antenna comprises a furnace body, a center column, a receding groove, a lifting rod and a lifting frame, the center column is fixedly arranged on the bottom surface in the furnace body, the receding groove is formed in the side surface of the center column, the sliding lifting rod is installed in the center column, and the lifting frame is arranged on the lifting rod. The outer surface of the lower end of the center column is sleeved with a lifting frame, the side surface of the center column is sleeved with a containing disc, a furnace cover is arranged at the upper end of the furnace body, and an inserting rod and a pressing block are fixedly arranged on the lower surface of the furnace cover. According to the ceramic sintering furnace for the ceramic antenna, the switching disc is rotated before sintering to enable the electric heating pipe to rotate out of the furnace body, so that the placement disc is not affected by the switching disc and the electric heating pipe when being placed, and the switching disc and the electric heating pipe are rotated into the furnace body after placement is completed; and the electric heating pipe can move to the position over the ventilation net to heat and sinter the raw materials, so that the sintering effect of the ceramic raw materials is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic antenna processing, in particular to a ceramic sintering furnace for ceramic antennas. Background Art

[0002] Ceramic antenna is a new type of antenna. It uses ceramic material as the main material of the antenna. It has the advantages of high frequency, high efficiency, small size, light weight, and anti-interference. It is widely used in wireless communication, satellite communication, aerospace and other fields. Ceramic material is a material with special structure and properties. Its electromagnetic properties can meet the design requirements of high frequency and small size antennas. The main part of the ceramic antenna is the antenna structure composed of a ceramic shell and a metal conductor. The ceramic shell is made of high-quality ceramic materials such as alumina and zirconium oxide, and has good insulation, thermal stability and mechanical strength. The ceramic shell has a certain length during sintering. Therefore, in order to increase the number of ceramic antennas sintered in a single time during sintering, when placing the raw materials in the sintering furnace, a placement rack is usually used for stacking. At that time, this will make the heating wire in the sintering furnace can only be set on the side wall of the sintering furnace so as not to affect the stacking of the placement rack. In this way, the raw materials on the placement rack will be heated unevenly due to the different distances between them and the heating wire, affecting the sintering effect of the one-piece molding of the ceramic antenna. Utility Model Content

[0003] The utility model aims to provide a ceramic sintering furnace for ceramic antennas, so as to solve the problem of uneven heating of ceramic antenna raw materials proposed in the above background technology.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a ceramic sintering furnace for ceramic antennas, comprising a furnace body, a center column, a clearance groove, a lifting rod and a lifting frame, the inner bottom surface of the furnace body is fixedly provided with a center column, and the side surface of the center column is provided with a clearance groove, a sliding lifting rod is installed inside the center column, the lower end outer surface of the center column is sleeved with a lifting frame, the side surface of the center column is sleeved with a placement plate, and the outer surface of the placement plate is embedded with a breathable net, a rotating switching plate is installed on the side surface of the furnace body, and an electric heating tube is embedded on the lower surface of one end of the switching plate, the rotating shaft of the switching disk is fixedly connected with a connecting rod, and a locking column is fixedly provided on the upper end of the connecting rod, a sliding closing plate is installed inside the side surface of the furnace body, a furnace cover is provided at the upper end of the furnace body, and an insertion rod and a clamping block are fixedly provided on the lower surface of the furnace cover.

[0005] Preferably, the lower end of the lifting rod passes through the yielding groove and is fixedly connected to the lifting frame, and the upper surface of the lifting frame fits with the lower surface of the placement plate, and the lower surface of the placement plate located above fits with the upper end surface of the placement plate located below.

[0006] By adopting the above technical solution, the lifting rod can drive the placement plate to move upward synchronously through the lifting frame when being driven to slide upward, so as to facilitate taking the placement plate and avoid burns to personnel caused by high temperature in the temple of the furnace body.

[0007] Preferably, the upper end of the lifting rod is cross-shaped, and the upper end surface of the lifting rod is flush with the upper end surface of the center column, and the upper end surfaces of the lifting rod and the center column are in contact with the lower surface of the pressing block.

[0008] By adopting the above technical solution, the pressing block can press the lifting rod, thereby preventing the lifting frame from failing to slide down into place and causing the placement tray to fail to be placed in the longitudinal position.

[0009] Preferably, the switching disk and the placing disk are arranged in a one-to-one correspondence, and the switching disk is located above the placing disk, and the switching disk and the connecting rod are eccentrically designed.

[0010] By adopting the above technical solution, when the switching disk rotates, the upper and lower switching disks can be driven to rotate synchronously through the connecting rod.

[0011] Preferably, the coupling rod is rotationally connected to the furnace body, the locking column is snap-fitted to the insertion rod, and the axial cross-section of the insertion rod is cross-shaped.

[0012] By adopting the above technical solution, the insertion rod can limit the rotation of the connecting rod by engaging with the locking column, thereby preventing the switching disk from rotating randomly during the sintering process.

[0013] Preferably, one end of the closing plate is in contact with the outer surface of the switching disk, and the end of the closing plate in contact with the outer surface of the switching disk is arc-shaped, and a spring is connected between the closing plate and the furnace body.

[0014] By adopting the above technical solution, the closing plate can be supported by the spring and fit with the outer surface of the switching disk through one arc-shaped end, thereby preventing a large amount of heat from leaking from the furnace body.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the ceramic sintering furnace for the ceramic antenna:

[0016] 1. By rotating the switching disk before sintering to make the electric heating tube rotate out of the furnace body, the placement disk will not be affected by the switching disk and the electric heating tube during placement. After the placement is completed, the switching disk and the electric heating tube are rotated into the furnace body, so that the electric heating tube can move to the top of the air permeable net to heat and sinter the raw materials, making the sintering effect of the ceramic raw materials more uniform.

[0017] 2. After sintering is completed, the lifting frame is driven to slide upward by the lifting rod, so that the placement plate can be driven upward for easy removal, avoiding the process of reaching into the high-temperature furnace body to take the placement plate after sintering is completed;

[0018] 3. The closing plate is kept in contact with the outer surface of the switching disk under the support of the spring, so that when the switching disk rotates toward the inside of the furnace body to heat through the electric heating tube, the temperature inside the furnace body will not leak out in large quantities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall top-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model in a disassembled state;

[0022] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model in an overall disassembled state.

[0023] In the figure: 1. furnace body; 2. center column; 3. give way groove; 4. lifting rod; 5. lifting frame; 6. placement plate; 7. breathable net; 8. switching plate; 9. electric heating tube; 10. connecting rod; 11. locking column; 12. closing plate; 13. furnace cover; 14. insertion rod; 15. pressing block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a technical solution: a ceramic sintering furnace for ceramic antennas, comprising a furnace body 1, a central column 2, a clearance groove 3, a lifting rod 4, a lifting frame 5, a placement plate 6, a breathable net 7, a switching plate 8, an electric heating tube 9, a connecting rod 10, a locking column 11, a closing plate 12, a furnace cover 13, an insertion rod 14 and a pressing block 15. The central column 2 is fixedly arranged on the inner bottom surface of the furnace body 1, and the side surface of the central column 2 is provided with a clearance groove 3, a sliding lifting rod 4 is installed inside the central column 2, a lifting frame 5 is sleeved on the outer surface of the lower end of the central column 2, a placement plate 6 is sleeved on the side surface of the central column 2, and a breathable net 7 is embedded on the outer surface of the placement plate 6, the lower end of the lifting rod 4 passes through the clearance groove 3 and is fixedly connected to the lifting frame 5, and The upper surface of the lifting frame 5 is fitted with the lower surface of the placement plate 6, and the lower surface of the placement plate 6 located above is fitted with the upper end surface of the placement plate 6 located below. The upper end of the lifting rod 4 is cross-shaped, and the upper end surface of the lifting rod 4 is flush with the upper end surface of the center column 2, and the upper end surfaces of the lifting rod 4 and the center column 2 are fitted with the lower surface of the clamping block 15. After the switching disk 8 is rotated out of the furnace body 1, the placement plate 6 with the antenna raw material base embryo placed on the air permeable net 7 is sleeved on the outer surface of the center column 2 and stacked in sequence. After sintering is completed, grasp the cross-shaped upper end of the lifting rod 4 and pull the lifting rod 4 upward. The lifting rod 4 drives the lifting frame 5 and the placement plate 6 to move upward through the yield groove 3, so that the placement plate 6 can be gradually moved to the upper end of the furnace body 1 for easy removal.

[0026] A rotating switching disk 8 is installed on the side surface of the furnace body 1, and an electric heating tube 9 is embedded on the lower surface of one end of the switching disk 8. The rotating shaft of the switching disk 8 is fixedly connected with a connecting rod 10, and a locking column 11 is fixedly provided on the upper end of the connecting rod 10. A sliding closing plate 12 is installed inside the side surface of the furnace body 1, and a furnace cover 13 is provided on the upper end of the furnace body 1, and a plug rod 14 and a pressing block 15 are fixedly provided on the lower surface of the furnace cover 13. The switching disk 8 and the placement disk 6 are arranged in a one-to-one correspondence, and the switching disk 8 is located above the placement disk 6, and the switching disk 8 and the connecting rod 10 are eccentrically designed, the connecting rod 10 and the furnace body 1 are rotatably connected, the locking column 11 and the plug rod 14 are snap-fitted, and the axial cross-section of the plug rod 14 is cross-shaped, one end of the closing plate 12 is connected to the outer surface of the switching disk 8 The closing plate 12 fits in with the outer surface of the switching disk 8, and the end thereof that fits in with the closing plate 12 is of arc-shaped design, and a spring is connected between the closing plate 12 and the furnace body 1. After the placing disk 6 is placed, the switching disk 8 is rotated, and the switching disk 8 drives the adjacent switching disk 8 to rotate through the connecting rod 10. At this time, the switching disk 8 squeezes the closing plate 12 so that the closing plate 12 allows the switching disk 8 to pass until the electric heating tube 9 on the lower surface of the switching disk 8 moves to just above the air permeable net 7. At this time, the furnace cover 13 is placed downwardly on the upper end of the furnace body 1 by aligning the insertion rod 14 with the locking column 11. The switching disk 8 is prevented from rotating during the sintering process by the engagement of the insertion rod 14 and the locking column 11. The pressing block 15 squeezes the lifting rod 4 so that the lifting frame 5 can slide down to the lowest position without affecting the normal placement of the placing disk 6.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ceramic sintering furnace for a ceramic antenna, comprising a furnace body (1), a central column (2), a clearance groove (3), a lifting rod (4) and a lifting frame (5), characterized in that: A central column (2) is fixedly arranged on the inner bottom surface of the furnace body (1), and a clearance groove (3) is opened on the side surface of the central column (2). A sliding lifting rod (4) is installed inside the central column (2). A lifting frame (5) is sleeved on the outer surface of the lower end of the central column (2). A placement plate (6) is sleeved on the side surface of the central column (2), and a breathable net (7) is embedded on the outer surface of the placement plate (6). A rotating cutting plate (4) is installed on the side surface of the furnace body (1). A switching disk (8) is provided, and an electric heating tube (9) is embedded on the lower surface of one end of the switching disk (8); a connecting rod (10) is fixedly connected to the rotating shaft of the switching disk (8), and a locking column (11) is fixedly arranged on the upper end of the connecting rod (10); a sliding closing plate (12) is installed inside the side surface of the furnace body (1); a furnace cover (13) is provided at the upper end of the furnace body (1), and an insertion rod (14) and a pressing block (15) are fixedly arranged on the lower surface of the furnace cover (13).

2. The ceramic sintering furnace for ceramic antenna according to claim 1, characterized in that: The lower end of the lifting rod (4) passes through the clearance groove (3) and is fixedly connected to the lifting frame (5), and the upper surface of the lifting frame (5) fits with the lower surface of the placement plate (6), and the lower surface of the placement plate (6) located above fits with the upper end surface of the placement plate (6) located below.

3. The ceramic sintering furnace for ceramic antenna according to claim 1, characterized in that: The upper end of the lifting rod (4) is cross-shaped, and the upper end surface of the lifting rod (4) is flush with the upper end surface of the center column (2), and the upper end surfaces of the lifting rod (4) and the center column (2) are in contact with the lower surface of the clamping block (15).

4. The ceramic sintering furnace for ceramic antenna according to claim 1, characterized in that: The switching disk (8) and the placement disk (6) are arranged in a one-to-one correspondence, and the switching disk (8) is located above the placement disk (6), and the switching disk (8) and the connecting rod (10) are eccentrically designed.

5. The ceramic sintering furnace for ceramic antenna according to claim 1, characterized in that: The coupling rod (10) is rotationally connected to the furnace body (1), the locking column (11) is snap-fittedly connected to the insertion rod (14), and the axial cross section of the insertion rod (14) is cross-shaped.

6. The ceramic sintering furnace for ceramic antenna according to claim 1, characterized in that: One end of the closing plate (12) fits against the outer surface of the switching disk (8), and the end of the closing plate (12) that fits against the outer surface of the switching disk (8) is of arc-shaped design, and a spring is connected between the closing plate (12) and the furnace body (1).

Images