A mesh belt atmosphere sintering furnace used in the production of DCB copper-clad ceramic substrates

Abstract

The present invention discloses a mesh belt type atmosphere sintering furnace used for the production of DCB copper-clad ceramic substrates, belonging to the technical field of sintering furnaces, and comprising a sintering furnace body, wherein a plurality of support pads are fixedly connected to the bottom of the sintering furnace body, and a feed table and a discharge table are respectively arranged at both ends of the sintering furnace body. The present invention is based on the production design requirements of DCB copper-clad ceramic substrates, and by setting a discharge box and a storage box, the ceramic substrate and the copper plate can be automatically filled respectively, without the need for manual placement, thereby reducing the production cost, and having important significance for enterprises to reduce costs and increase efficiency. In order to avoid the influence of air inflow on the atmosphere control in the sintering furnace body, the present invention completely seals one side of the feed table. Compared with the existing equipment, there is basically no problem of natural leakage of nitrogen and air inflow caused by feeding on one side of the feed table. At the same time, when the sintering furnace body is filled with nitrogen, the amount of nitrogen required to form a micro-positive pressure will be greatly reduced, saving material costs.

Description

Technical Field

[0001] The invention belongs to the technical field of sintering furnaces, in particular to a mesh belt type atmosphere sintering furnace used for producing a DCB copper-clad ceramic substrate. Background Art

[0002] DCB copper-clad ceramic substrate is a high-performance electronic material, which is made by directly and tightly combining copper foil with a ceramic matrix. This substrate combines the good electrical conductivity of copper with the high thermal conductivity, excellent mechanical strength and chemical stability of ceramics, so it is widely used in power electronics, LED lighting, automotive electronics and other fields. The mesh belt atmosphere sintering furnace used in the production of DCB copper-clad ceramic substrates is a heating equipment designed for large-scale production of such substrates. This type of sintering furnace adopts a continuous operation mode, and the workpiece to be processed is evenly fed into the heating area through a mesh belt conveyor system, and the sintering process is completed under a well-controlled temperature environment. This method not only improves production efficiency, but also ensures the consistency of product quality. The mesh belt atmosphere sintering furnace has the advantages of easy operation, high degree of automation and low maintenance cost. It is one of the indispensable key equipment in the manufacture of modern electronic materials.

[0003] The existing mesh belt atmosphere sintering furnace still has the following shortcomings in the production of DCB copper-clad ceramic substrates:

[0004] The application range of mesh-belt atmosphere sintering furnace is wide, not limited to the production field of DCB copper-clad ceramic substrates, but the industry lacks mesh-belt atmosphere sintering furnaces designed specifically for the production of DCB copper-clad ceramic substrates. According to the process requirements of DCB copper-clad ceramic substrates, traditional mesh-belt atmosphere sintering furnaces cannot meet the requirements well.

[0005] When the copper layer and the ceramic substrate are sintered at high temperature in a sintering furnace, in order to prevent the copper layer from reacting with oxygen in the air to form copper oxide in a high temperature environment, atmosphere control is required in the sintering furnace. High-purity nitrogen is introduced to exhaust the air in the sintering furnace and form a slight positive pressure in the furnace to prevent air from contacting the copper layer. Although the existing device can control the nitrogen concentration through a flow controller and a gas analysis monitor, it is extremely difficult to control the atmosphere stability during actual operation and production, especially when producing DCB copper-clad ceramic substrates that require continuous feeding.

[0006] When producing DCB copper-clad ceramic substrates, it is necessary to place a ceramic limit bottom plate on the mesh belt in the mesh belt atmosphere sintering furnace to limit the ceramic substrate and the copper plate. This work process is usually completed by on-site staff wearing dust-proof gloves. Not only is the workload large, but the temperature around the sintering furnace is high and the manual working environment is relatively harsh. In addition, since the combination of the ceramic substrate and the copper plate is completed manually, it means that many problems such as the placement accuracy and whether the placement is correct are all subject to the on-site operators, which cannot guarantee a high yield rate. Summary of the invention

[0007] In order to overcome the above defects, the present invention provides a mesh belt atmosphere sintering furnace used for the production of DCB copper clad ceramic substrates, which solves the problems in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solution: a mesh belt atmosphere sintering furnace used for the production of DCB copper-clad ceramic substrates, comprising:

[0009] A sintering furnace body, wherein a plurality of support pads are fixedly connected to the bottom of the sintering furnace body, a feeding platform and a discharging platform are respectively arranged at both ends of the sintering furnace body, a mesh belt driving unit and a mesh belt are arranged in the sintering furnace body, and the mesh belt driving unit drives the mesh belt to run;

[0010] A temperature control component is arranged at the bottom of the feed platform, an air source air intake system control panel and a monitoring control system panel are arranged on the sintering furnace body, a sealed shell is fixedly connected to the feed platform, a monitoring camera is arranged at the top of the sealed shell, feed and discharge components are arranged on both sides of the sealed shell, the feed and discharge components include a discharge box connected and arranged on one side of the sealed shell and a storage magazine matched with the discharge box, connecting plates are fixedly connected to the inner walls on both sides of the storage magazine, a storage box is fixedly connected between the two connecting plates, the bottoms of the storage box and the storage magazine are both opened, the opening positions of the storage box and the bottom of the storage magazine are both provided with a single-layer sealing ring, the bottom of the storage magazine is matched with a leak-proof cover plate, the top of the storage magazine is connected and provided with a pressure stabilizing cylinder, a piston plate is slidably connected to the pressure stabilizing cylinder, a No. 1 servo motor is fixedly connected to the top of the pressure stabilizing cylinder, the output end of the No. 1 servo motor passes through the pressure stabilizing cylinder and is coaxially fixedly connected with a threaded rod, the threaded rod passes through the piston plate and is threadedly connected thereto;

[0011] The top of the discharge box is provided with an opening, and a circular baffle plate is fixedly connected to the top of the discharge box, and a multi-layer expansion sealing ring is provided on the inner wall of the circular baffle plate, and slide rails are fixedly connected to the inner walls of both sides of the discharge box, and a limiting slide plate is slidably connected between the two slide rails, and a notch is provided on one side of the discharge box corresponding to the position of the limiting slide plate, and an inflation port is fixedly connected in the linkage shell, and a sealing plate is slidably connected in the inflation port, and a connecting shaft is fixedly connected to one side of the sealing plate, and matching tooth plates are fixedly connected to the connecting shaft and the limiting slide plate, and the two matching tooth plates are meshed with the driving gear, and the output end of the inflation port is connected to the multi-layer expansion sealing ring.

[0012] As a further solution of the present invention: a C-shaped limit plate is fixedly connected inside the discharge box, a basic bottom plate is fixedly connected inside the discharge box, the basic bottom plate is fixedly connected to the C-shaped limit plate, a transmission gear is rotatably connected to one side of the discharge box, a reciprocating threaded rod is rotatably connected to the bottom of the discharge box, the rotating shaft of the transmission gear passes through the discharge box and is coaxially fixedly connected to the reciprocating threaded rod, and a matching nut is threadedly connected on the reciprocating threaded rod.

[0013] As a further solution of the present invention: the mating nut is abutted against the bottom of the discharge box, a through groove is provided on the base bottom plate, the mating nut is slidably connected in the through groove, a pushing plate is fixedly connected to the mating nut, a discharge port is provided on one side of the discharge box, and a sliding inclined plate is fixedly connected to the side of the discharge box corresponding to the discharge port.

[0014] As a further solution of the present invention: a linkage housing is fixedly connected to one side of the discharge box, a No. 2 servo motor is fixedly connected to one side of the linkage housing, and an output end of the No. 2 servo motor passes through the linkage housing and is coaxially fixedly connected to a driving gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, the present invention is based on the production design requirements of DCB copper-clad ceramic substrates. By setting a discharge box and a material storage magazine, the ceramic substrate and the copper plate can be automatically filled respectively, and the filling can be automatically performed under the push of the push plate. The combination of the two can complete the pre-sintering preparation work, and there is no need for manual placement, which reduces the production cost and is of great significance to the cost reduction and efficiency improvement of enterprises. When the ceramic substrate or copper plate in the discharge box is about to be filled, multiple ceramic substrates or copper plates can be filled into the material storage magazine, and the material storage magazine is connected to the discharge box to complete the material filling. In order to ensure the airtightness of the connection between the material storage magazine and the discharge box, the present invention is provided with multiple measures to ensure airtightness;

[0017] In addition, in order to prevent the inflow of air from affecting the atmosphere control in the sintering furnace body, the present invention completely seals one side of the feed table. Compared with the existing equipment, there is basically no problem of natural leakage of nitrogen and air inflow caused by feeding on one side of the feed table. At the same time, when the sintering furnace body is filled with nitrogen, the amount of nitrogen required to form a slight positive pressure will be greatly reduced, saving material costs. At the same time, when the ceramic substrate or copper plate in the discharge box is discharged, the required power is also realized by the mesh belt, without the need for additional power configuration, and the overall linkage is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding platform part of the present invention;

[0020] Figure 3 It is a three-dimensional internal structure schematic diagram of the material storage box part of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of part A;

[0022] Figure 5 It is a schematic diagram of the three-dimensional internal structure of the pressure-stabilizing cylinder part of the present invention;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the discharge box and the linkage shell part of the present invention;

[0024] Figure 7 for Figure 6 Figure 2. Part B of the figure;

[0025] Figure 8 It is a schematic diagram of the three-dimensional internal structure of the discharge box part of the present invention;

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the reciprocating threaded rod part of the present invention;

[0027] Fig.10 It is a schematic diagram of the three-dimensional internal structure of the linkage housing part of the present invention;

[0028] Fig.11 It is a schematic diagram of the three-dimensional internal structure of the inflation port part of the present invention.

[0029] In the figure: 1 sintering furnace body, 2 support pad, 3 feeding table, 4 discharging table, 5 mesh belt, 6 temperature control component, 7 air source intake system control panel, 8 monitoring control system panel, 9 sealing shell, 10 monitoring camera, 11 discharge box, 12 storage magazine, 13 connecting plate, 14 storage box, 15 single-layer sealing ring, 16 leak-proof cover plate, 17 pressure stabilizing cylinder, 18 piston plate, 19 No. 1 servo motor, 20 threaded rod, 21 return type enclosure plate, 22 multi-layer expansion sealing ring, 23 slide rail, 24 limit slide plate, 25 C-type limit plate, 26 basic bottom plate, 27 transmission gear, 28 reciprocating threaded rod, 29 matching nut, 30 push plate, 31 sliding inclined plate, 32 linkage shell, 33 No. 2 servo motor, 34 driving gear, 35 inflation port, 36 sealing plate, 37 connecting shaft, 38 matching gear plate. DETAILED DESCRIPTION

[0030] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0031] like Figure 1-Figure 11 As shown, the present invention provides a technical solution:

[0032] A sintering furnace body 1, a plurality of support pads 2 are fixedly connected to the bottom of the sintering furnace body 1, a feeding platform 3 and a discharging platform 4 are respectively arranged at both ends of the sintering furnace body 1, a mesh belt driving unit and a mesh belt 5 are arranged in the sintering furnace body 1, the mesh belt driving unit drives the mesh belt 5 to run, the support pads 2 at the bottom of the sintering furnace body 1 can ensure the stability of the sintering furnace body 1, and also facilitate heat dissipation, and the mesh belt driving unit ensures the normal power and control requirements of the mesh belt 5;

[0033] A temperature control component 6 is provided at the bottom of the feed table 3, a gas source air intake system control panel 7 and a monitoring control system panel 8 are provided on the sintering furnace body 1, a sealed shell 9 is fixedly connected to the feed table 3, a monitoring camera 10 is provided at the top of the sealed shell 9, and feeding and discharging components are provided on both sides of the sealed shell 9. The temperature control component 6 can control the temperature of each part in the sintering furnace body 1 to meet the sintering requirements. The gas composition, air pressure, nitrogen concentration and gas filling conditions in the sintering furnace body 1 can be understood through the gas source air intake system control panel 7. The monitoring control system panel 8 is connected to the monitoring camera 10 by signal. The specific conditions in the sealed shell 9 can be observed through the monitoring control system panel 8, so that the staff can perform maintenance and repair in time when errors occur;

[0034] In order to prevent the inflow of air from affecting the atmosphere control in the sintering furnace body 1, the present invention sets one side of the feed table 3 to be completely sealed. Compared with the existing equipment, there is basically no problem of natural leakage of nitrogen and air inflow caused by feeding on one side of the feed table 3. At the same time, when the sintering furnace body 1 is filled with nitrogen, the amount of nitrogen required to form a slight positive pressure will be greatly reduced, saving material costs. At the same time, when the ceramic substrate or copper plate in the discharge box 11 is discharged, the required power is also realized by the mesh belt 5, and no additional power configuration is required, and the overall linkage is stronger.

[0035] The feeding and discharging assembly includes a discharging box 11 which is connected to one side of the sealed shell 9 and a material storage box 12 which is matched with the discharging box 11. The inner walls on both sides of the material storage box 12 are fixedly connected with connecting plates 13, and a material storage box 14 is fixedly connected between the two connecting plates 13. The bottoms of the material storage box 14 and the material storage box 12 are both opened. The opening positions of the bottoms of the material storage box 14 and the material storage box 12 are both provided with single-layer sealing rings 15. The bottom of the material storage box 12 is matched with a leak-proof cover plate 16. The discharging box 11 can discharge ceramic substrates or copper plates. The two groups of discharging boxes 11 discharge ceramic substrates and copper plates respectively. The upper and lower order of material filling is carried out according to the required process flow. The material storage box 12 can fill the discharging box 11 with materials to meet the uninterrupted production needs.

[0036] A pressure stabilizing cylinder 17 is connected to the top of the material storage magazine 12, and a piston plate 18 is slidably connected to the pressure stabilizing cylinder 17. A servo motor 19 is fixedly connected to the top of the pressure stabilizing cylinder 17. The output end of the servo motor 19 passes through the pressure stabilizing cylinder 17 and is coaxially fixedly connected with a threaded rod 20. The threaded rod 20 passes through the piston plate 18 and is threadedly connected thereto. The material storage magazine 12 and the material storage box 14 are connected by a connecting plate 13, but there is a gap between the two. After the material storage magazine 12 is filled with materials, in order to prevent the material from flowing out, the leak-proof cover plate 16 can be placed at the bottom of the material storage magazine 12, and the material storage magazine 12 can be pressed. At this time, The single-layer sealing ring 15 at the bottom of the material storage box 14 and the material storage magazine 12 is deformed and fits the leak-proof cover plate 16. In order to ensure that the leak-proof cover plate 16 is completely adsorbed on the bottom of the material storage magazine 12, the No. 1 servo motor 19 is controlled to drive the threaded rod 20 at the same time. The rotation of the threaded rod 20 will cause the piston plate 18 threadedly connected thereto to move. In order to prevent the circular piston plate 18 from rotating, a limit rod is further provided in the pressure stabilizing cylinder 17. The limit rod passes through the piston plate 18 and is slidably connected thereto. When the piston plate 18 moves upward, negative pressure can be formed in the gap, and the leak-proof cover plate 16 can be completely adsorbed on the bottom of the material storage magazine 12.

[0037] The top of the discharge box 11 is open, and a circular baffle plate 21 is fixedly connected to the top of the discharge box 11. A multi-layer expansion seal ring 22 is arranged on the inner wall of the circular baffle plate 21. Slide rails 23 are fixedly connected to the inner walls of both sides of the discharge box 11. A limiting slide plate 24 is slidably connected between the two slide rails 23. A notch is provided on one side of the discharge box 11 corresponding to the position of the limiting slide plate 24. When docking the material storage magazine 12, the material storage magazine 12 can be inserted into the circular baffle plate 21 at the top of the discharge box 11, and the anti-leakage cover plate 16 will be stuck in the limiting slide plate 24, and the side wall of the material storage magazine 12 will contact the multi-layer expansion seal ring 22;

[0038] A C-shaped limit plate 25 is fixedly connected inside the discharge box 11, and a basic bottom plate 26 is fixedly connected inside the discharge box 11. The basic bottom plate 26 is fixedly connected to the C-shaped limit plate 25. A transmission gear 27 is rotatably connected to one side of the discharge box 11. A reciprocating threaded rod 28 is rotatably connected to the bottom of the discharge box 11. The rotating shaft of the transmission gear 27 passes through the discharge box 11 and is coaxially fixedly connected to the reciprocating threaded rod 28. A matching nut 29 is threadedly connected to the reciprocating threaded rod 28, and the matching nut 29 is against the bottom of the discharge box 11. A through groove is provided on the basic bottom plate 26, and the matching nut 29 slides It is connected in the through groove, and a push plate 30 is fixedly connected to the matching nut 29. A discharge port is opened on one side of the discharge box 11, and a sliding inclined plate 31 is fixedly connected to the side of the discharge box 11 corresponding to the discharge port. The teeth on the transmission gear 27 are inserted into the mesh belt 5. When the mesh belt 5 moves, it can drive the transmission gear 27 to rotate, and the reciprocating threaded rod 28 coaxially fixedly connected to the transmission gear 27 can rotate. The matching nut 29 and the push plate 30 on the reciprocating threaded rod 28 can push the material out. After the material is discharged from the discharge port, it slides down through the sliding inclined plate 31 to complete the assembly;

[0039] A linkage shell 32 is fixedly connected to one side of the discharge box 11, and a No. 2 servo motor 33 is fixedly connected to one side of the linkage shell 32. The output end of the No. 2 servo motor 33 passes through the linkage shell 32 and is coaxially fixedly connected to a driving gear 34. An inflation port 35 is fixedly connected in the linkage shell 32, and a sealing plate 36 is slidably connected in the inflation port 35. A connecting shaft 37 is fixedly connected to one side of the sealing plate 36. The connecting shaft 37 and the limiting slide plate 24 are both fixedly connected with matching tooth plates 38. The two matching tooth plates 38 are meshed with the driving gear 34. The output end of the inflation port 35 is connected to the multi-layer expansion sealing ring 22. After the storage magazine 12 and the discharge box 11 are docked, in order to release the material in the storage magazine 12, the No. 2 servo motor 33 is started, the driving gear 34 rotates, and the two matching tooth plates 38 meshing therewith can move relative to each other. At this time, the limiting slide plate 24 can drive the leak-proof cover plate 16 to move. Of course, it is necessary to control the No. 1 servo motor 19 to move the leak-proof cover plate 16. The pressure is released, and at the same time, the sealing plate 36 will move into the inflation port 35, and the gas in the inflation port 35 can flow into the multi-layer expansion sealing ring 22. The expansion of the multi-layer expansion sealing ring 22 can further ensure the connection stability and airtightness between the storage magazine 12 and the discharge box 11. The present invention is based on the production design requirements of the DCB copper-clad ceramic substrate. By setting the discharge box 11 and the storage magazine 12, the ceramic substrate and the copper plate can be automatically filled respectively, and the filling is automatically performed under the push of the push plate 30. The combination of the two can complete the pre-sintering preparation work, and there is no need for manual placement, which reduces the production cost. When the ceramic substrate or copper plate in the discharge box 11 is about to be filled, multiple ceramic substrates or copper plates can be filled into the storage magazine 12, and the storage magazine 12 is connected to the discharge box 11, so as to complete the material filling. In order to ensure the airtightness of the connection between the storage magazine 12 and the discharge box 11, the present invention is provided with multiple measures to ensure airtightness.

[0040] The working principle of the present invention is:

[0041] The support pad 2 at the bottom of the sintering furnace body 1 can ensure the stability of the sintering furnace body 1 and is also convenient for heat dissipation. The mesh belt driving unit ensures the normal power and control requirements of the mesh belt 5. The temperature control component 6 can control the temperature of each part of the sintering furnace body 1 to meet the sintering requirements. The gas composition, air pressure, nitrogen concentration and gas filling conditions in the sintering furnace body 1 can be understood through the gas source intake system control panel 7. The monitoring control system panel 8 is connected to the monitoring camera 10 by signal. The specific conditions in the sealed housing 9 can be observed through the monitoring control system panel 8, so that the staff can perform maintenance and repair in time when errors occur;

[0042] In order to prevent the inflow of air from affecting the atmosphere control in the sintering furnace body 1, the present invention sets one side of the feed table 3 to be completely sealed. Compared with the existing equipment, there is basically no problem of natural leakage of nitrogen and air inflow caused by feeding on one side of the feed table 3. At the same time, when the sintering furnace body 1 is filled with nitrogen, the amount of nitrogen required to form a slight positive pressure will be greatly reduced, saving material costs. At the same time, when the ceramic substrate or copper plate in the discharge box 11 is discharged, the required power is also realized by the mesh belt 5, and no additional power configuration is required, and the overall linkage is stronger.

[0043] The discharge box 11 can discharge the ceramic substrate or the copper plate. The two sets of discharge boxes 11 discharge the ceramic substrate and the copper plate respectively. The upper and lower order of filling the materials is carried out according to the required process flow. The storage box 12 can fill the discharge box 11 with materials to meet the uninterrupted production needs. The storage box 12 is connected to the storage box 14 by a connecting plate 13, but there is a gap between the two. After the material is filled in the storage box 12, in order to prevent the material from flowing out, the leak-proof cover plate 16 can be placed at the bottom of the storage box 12, and the storage box 12 is pressed. At this time, the storage box 14 and The single-layer sealing ring 15 at the bottom of the material storage magazine 12 is deformed and fits the leak-proof cover plate 16. In order to ensure that the leak-proof cover plate 16 is completely adsorbed on the bottom of the material storage magazine 12, the No. 1 servo motor 19 is controlled to drive the threaded rod 20 at the same time. The rotation of the threaded rod 20 will cause the piston plate 18 threadedly connected thereto to move. In order to prevent the circular piston plate 18 from rotating, a limit rod is further provided in the pressure stabilizing cylinder 17. The limit rod passes through the piston plate 18 and is slidably connected thereto. When the piston plate 18 moves upward, negative pressure can be formed in the gap, and the leak-proof cover plate 16 can be completely adsorbed on the bottom of the material storage magazine 12.

[0044] When docking the material storage magazine 12, the material storage magazine 12 can be inserted into the return-shaped enclosure plate 21 on the top of the discharge box 11, the leak-proof cover plate 16 will be stuck in the limiting slide plate 24, the side wall of the material storage magazine 12 is in contact with the multi-layer expansion seal ring 22, and the teeth on the transmission gear 27 are stuck in the mesh belt 5. When the mesh belt 5 moves, it can drive the transmission gear 27 to rotate, and the reciprocating threaded rod 28 coaxially fixedly connected to the transmission gear 27 can rotate, and the matching nut 29 and the push plate 30 on the reciprocating threaded rod 28 can push the material out. After the material is discharged from the discharge port, it slides down through the sliding inclined plate 31 to complete the assembly;

[0045] After the material storage box 12 and the discharge box 11 are docked, in order to release the material in the material storage box 12, the second servo motor 33 is started, the driving gear 34 rotates, and the two mating toothed plates 38 meshing therewith can move relative to each other. At this time, the limiting slide plate 24 can drive the leakage-proof cover plate 16 to move. Of course, it is necessary to control the first servo motor 19 to release the pressure on the leakage-proof cover plate 16. At the same time, the sealing plate 36 will move into the inflation port 35, and the gas in the inflation port 35 can flow into the multi-layer expansion sealing ring 22. The expansion of the multi-layer expansion sealing ring 22 can further ensure the connection stability and airtightness between the material storage box 12 and the discharge box 11. The present invention is based on D The production design requirements of CB copper-clad ceramic substrates are met by setting a discharge box 11 and a storage magazine 12, so that the ceramic substrates and copper plates can be automatically filled respectively, and the filling can be automatically performed under the push of the push plate 30. The combination of the two can complete the preparation work before sintering, and there is no need for manual placement, which reduces the production cost. When the ceramic substrates or copper plates in the discharge box 11 are about to be filled, multiple ceramic substrates or copper plates can be filled into the storage magazine 12, and the storage magazine 12 is connected to the discharge box 11 to complete the material filling. In order to ensure the airtightness of the connection between the storage magazine 12 and the discharge box 11, the present invention is provided with multiple measures to ensure airtightness.

[0046] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A mesh belt atmosphere sintering furnace used for the production of DCB copper-clad ceramic substrates, characterized in that: include: A sintering furnace body (1), wherein a plurality of support pads (2) are fixedly connected to the bottom of the sintering furnace body (1), a feeding platform (3) and a discharging platform (4) are respectively arranged at two ends of the sintering furnace body (1), a mesh belt driving unit and a mesh belt (5) are arranged inside the sintering furnace body (1), and the mesh belt driving unit drives the mesh belt (5) to run; A temperature control component (6) is arranged at the bottom of the feed table (3), an air source intake system control panel (7) and a monitoring control system panel (8) are arranged on the sintering furnace body (1), a sealed shell (9) is fixedly connected to the feed table (3), a monitoring camera (10) is arranged at the top of the sealed shell (9), and feed and discharge components are arranged on both sides of the sealed shell (9), and the feed and discharge components include a discharge box (11) connected to one side of the sealed shell (9) and a storage box (12) matched with the discharge box (11); The inner walls of both sides of the material storage magazine (12) are fixedly connected with connecting plates (13), and a material storage box (14) is fixedly connected between the two connecting plates (13). The bottoms of the material storage box (14) and the material storage magazine (12) are both opened, and the bottom openings of the material storage box (14) and the material storage magazine (12) are both provided with single-layer sealing rings (15). The bottom of the material storage magazine (12) is matched with a leak-proof cover plate (16). The top of the material storage magazine (12) is connected with a pressure stabilizing cylinder (17), and a piston plate (18) is slidably connected to the inside of the pressure stabilizing cylinder (17). The top of the pressure stabilizing cylinder (17) is fixedly connected with a No. 1 servo motor (19), and the output end of the No. 1 servo motor (19) passes through the pressure stabilizing cylinder (17) and is coaxially fixedly connected with a threaded rod (20), and the threaded rod (20) passes through the piston plate (18) and is threadedly connected thereto; The top of the discharge box (11) is provided with an opening, a circular baffle plate (21) is fixedly connected to the top of the discharge box (11), a multi-layer expansion sealing ring (22) is provided on the inner wall of the circular baffle plate (21), slide rails (23) are fixedly connected to the inner walls of both sides of the discharge box (11), a limit slide plate (24) is slidably connected between the two slide rails (23), a notch is provided on one side of the discharge box (11) corresponding to the position of the limit slide plate (24), an inflation port (35) is fixedly connected in the linkage housing (32), a sealing plate (36) is slidably connected in the inflation port (35), a connecting shaft (37) is fixedly connected to one side of the sealing plate (36), the connecting shaft (37) and the limit slide plate (24) are fixedly connected with matching tooth plates (38), the two matching tooth plates (38) are meshed with the driving gear (34), and the output end of the inflation port (35) is connected to the multi-layer expansion sealing ring (22).

2. The mesh belt atmosphere sintering furnace used for producing DCB copper-clad ceramic substrates according to claim 1, characterized in that: A C-shaped limit plate (25) is fixedly connected inside the discharge box (11), a base bottom plate (26) is fixedly connected inside the discharge box (11), the base bottom plate (26) is fixedly connected to the C-shaped limit plate (25), a transmission gear (27) is rotatably connected to one side of the discharge box (11), a reciprocating threaded rod (28) is rotatably connected to the bottom of the discharge box (11), a rotating shaft of the transmission gear (27) passes through the discharge box (11) and is coaxially fixedly connected to the reciprocating threaded rod (28), and a matching nut (29) is threadedly connected to the reciprocating threaded rod (28).

3. The mesh belt atmosphere sintering furnace used for producing DCB copper-clad ceramic substrates according to claim 2, characterized in that: The mating nut (29) abuts against the bottom of the discharge box (11); a through groove is provided on the base bottom plate (26); the mating nut (29) is slidably connected in the through groove; a push plate (30) is fixedly connected to the mating nut (29); a discharge opening is provided on one side of the discharge box (11); and a sliding inclined plate (31) is fixedly connected to the side of the discharge box (11) corresponding to the discharge opening.

4. The mesh belt atmosphere sintering furnace used for producing DCB copper-clad ceramic substrates according to claim 3, characterized in that: A linkage housing (32) is fixedly connected to one side of the discharge box (11), a second servo motor (33) is fixedly connected to one side of the linkage housing (32), and an output end of the second servo motor (33) passes through the linkage housing (32) and is coaxially fixedly connected to a driving gear (34).

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