Novel vacuum sintering furnace

Abstract

The utility model discloses a novel vacuum sintering furnace which comprises a furnace body, a base is installed at the bottom of the furnace body, a vertical plate is installed at the top of the base, a filtering connecting assembly is arranged on the vertical plate, a driving adjusting assembly is arranged on the filtering connecting assembly, and a limiting fixing assembly is arranged on the filtering connecting assembly. The filtering connecting assembly comprises a fixing shell. Through the mutual cooperation of the fixed shell, the partition plate, the filter screens, the sealing plate, the vacuum pump, a sealing rubber plate, an air suction head, a hose, an air suction pipe, an electric push rod, a movable plate and an adjusting block, when one filter screen is blocked and needs to be disassembled and cleaned, the vacuum pump is prevented from stopping for waiting, so that the disassembly and assembly of the filter screens cannot influence the work of the vacuum pump; and by arranging the limiting and fixing assembly, the filter screen can be conveniently detached, and meanwhile the stability of the filter screen located in the fixing shell is guaranteed.

Description

A novel vacuum sintering furnace Technical Field

[0001] This utility model relates to the field of vacuum sintering furnace technology, specifically a novel vacuum sintering furnace. Background Technology

[0002] Vacuum sintering furnaces heat and sinter materials in a vacuum environment, which can avoid oxidation and increase sintering density. They are widely used in new energy, semiconductor, aerospace and other fields. During the sintering process, impurities such as metal powder, ceramic debris, and volatile condensate particles generated enter the pipeline with the vacuum gas flow, which can easily block the vacuum pump blades or pipeline flow channels, resulting in a decrease in pumping efficiency or even pump wear.

[0003] According to application number CN202323634779.6, an improved vacuum sintering furnace is disclosed, including a vacuum sintering furnace, with support plates installed on the lower left and lower right sides of the vacuum sintering furnace, a storage device installed between the front inner wall and the rear inner wall of the vacuum sintering furnace, a sealing cover installed on the left end of the vacuum sintering furnace, an installation base installed on the upper end of the vacuum sintering furnace, a detection device installed at the front end of the installation base, and a vacuum pumping device installed at the rear end of the installation base and the rear right side of the vacuum sintering furnace.

[0004] The above case uses a filter screen to filter and intercept dust and impurities generated during vacuuming inside the furnace. However, when the filter screen becomes clogged and needs to be disassembled and cleaned, the vacuum pump can no longer be used. The vacuum pump can only be turned on after the filter screen is cleaned and installed, which seriously affects the working efficiency. At the same time, the disassembly and assembly of the filter screen is inconvenient. Therefore, we provide a new type of vacuum sintering furnace. Summary of the Invention

[0005] The purpose of this invention is to provide a novel vacuum sintering furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel vacuum sintering furnace, comprising a furnace body, a base installed at the bottom of the furnace body, a vertical plate installed at the top of the base, a filter connection assembly provided on the vertical plate, a drive adjustment assembly provided on the filter connection assembly, and a limit fixing assembly provided on the filter connection assembly.

[0007] Preferably, the filter connection assembly includes a fixed shell, which is installed on the right side of the vertical plate. The front and rear sides of the inner wall of the fixed shell are fixedly connected by a partition. The top and bottom of the partition are provided with pluggable filter screens. The side of the filter screen away from the partition passes through the fixed shell and extends to its outside, where a sealing plate is installed.

[0008] Preferably, a vacuum pump is installed on the right side of the fixed shell, and a movable sealing rubber plate is provided inside the fixed shell and on the left side of the partition. An air suction head is installed on the inner wall of the through groove on the left side of the sealing rubber plate, and a flexible hose connected to the top of the air suction head is installed thereto. An air suction pipe connected to the top of the flexible hose is installed thereto.

[0009] Preferably, the drive adjustment assembly includes an electric push rod, which is installed at the bottom of the fixed housing. A movable plate is installed at the bottom end of the electric push rod, and an adjustment block is installed on the left side of the top of the movable plate. The top of the adjustment block penetrates the fixed housing and extends into it, where it is fixedly connected to the bottom of the sealing rubber plate.

[0010] Preferably, the limiting and fixing component includes two slide grooves, which are respectively opened on the right side of the top and bottom of the fixing shell. The left and right sides of the inner wall of the slide groove are fixedly connected by slide rods, and the surface of the slide rods is slidably connected to a slider.

[0011] Preferably, the two sliders, on opposite sides, pass through the slide groove and extend to the outside of it, and are fitted with limiting plates that cooperate with the sealing plate. A support block is installed on the right side of the fixed shell, and a sealing plug is installed at the bottom of the support block via a traction rope.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model, through the cooperation of a fixed shell, partition, filter screen, sealing plate, vacuum pump, sealing rubber plate, suction head, hose, suction pipe, electric push rod, movable plate and adjusting block, avoids the vacuum pump having to stop and wait when a filter screen becomes clogged and needs to be disassembled for cleaning. This ensures that the disassembly and assembly of the filter screen will not affect the operation of the vacuum pump and avoid affecting work efficiency. By setting a limiting and fixing component, the filter screen can be easily disassembled, while ensuring the stability of the filter screen within the fixed shell. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 is a three-dimensional structural diagram of the vertical plate, filter connection assembly and limiting and fixing assembly of this utility model;

[0016] Figure 3 is a structural cross-sectional view of the front view of this utility model;

[0017] Figure 4 is a structural cross-sectional view of the vertical plate, filter connection assembly, drive adjustment assembly and limit fixing assembly of this utility model from the front view.

[0018] In the diagram: 1 Furnace body, 2 Base, 3 Filter connection assembly, 31 Fixed shell, 32 Partition plate, 33 Filter screen, 34 Sealing plate, 35 Vacuum pump, 36 Sealing rubber plate, 37 Suction head, 38 Hose, 39 Suction pipe, 4 Drive adjustment assembly, 41 Electric push rod, 42 Movable plate, 43 Adjustment block, 5 Limit fixing assembly, 51 Slide groove, 52 Slide rod, 53 Slider, 54 Limit plate, 55 Support block, 56 Traction rope, 57 Sealing plug, 58 Buffer spring, 6 Vertical plate, 7 Sealing block, 8 Carbon fiber heating tube, 9 Mounting plate, 10 Placement plate, 11 Insert block, 12 Slot, 13 Temperature sensor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4. A novel vacuum sintering furnace includes a furnace body 1, a base 2 fixedly connected to the bottom of the furnace body 1, a vertical plate 6 fixedly connected to the top of the base 2, a filter connection assembly 3 provided on the vertical plate 6, a drive adjustment assembly 4 provided on the filter connection assembly 3, and a limit fixing assembly 5 provided on the filter connection assembly 3.

[0021] Carbon fiber heating tubes 8 are fixedly connected to the top and bottom of the inner wall of the furnace body 1. Mounting plates 9 are fixedly connected to both the left and right sides of the inner wall of the furnace body 1. Placement plates 10 are provided on opposite sides of the two mounting plates 9. Several ventilation holes are opened on the top of the placement plates 10. Insert blocks 11 are fixedly connected to both the left and right sides of the placement plates 10. Several slots 12 that are adapted to the insert blocks 11 are opened on the front side of the mounting plates 9 and the side of the installation plates 9 that is close to the insert blocks 11. The side of the insert block 11 that is close to the slot 12 passes through the slot 12 and extends into it to contact the inner wall of the slot 12. A temperature sensor 13 is fixedly connected to the left side of the top of the inner wall of the furnace body 1. The furnace body 1 is equipped with a furnace cover, and a control panel is installed on the furnace cover. Temperature sensor 13 is used to sense the temperature inside the furnace body 1 and then transmit it to the control panel. The furnace cover is opened. The method of opening the furnace cover is already publicly available technology and will not be described in detail here. Pulling the placement plate 10 forward will cause the placement plate 10 to move the insertion block 11 forward, which can pull the placement plate 10 out of the furnace body 1. The placement plate 10 will then move the insertion block 11 backward and insert it into slots 12 of different heights, which can change the distance between two adjacent placement plates 10, making it convenient to place workpieces of different sizes and improving the flexibility of use. The internal structure of the furnace body 1 is made of high temperature resistant material.

[0022] The filter connection assembly 3 includes a fixed housing 31, which is installed on the right side of the vertical plate 6. The front and rear sides of the inner wall of the fixed housing 31 are fixedly connected by partitions 32. Insertable filter screens 33 are provided at the top and bottom of the partitions 32. The surface of the filter screen 33 is in contact with the inner wall of the fixed housing 31, and the side of the filter screen 33 closest to the partitions 32 is in contact with the partitions 32. The filter screen 33 is made of high-temperature resistant and corrosion-resistant 316L stainless steel wire mesh with a mesh count of 100-200 mesh and an aperture of 150-75μm. The side of the filter screen 33 away from the partitions 32 penetrates the fixed housing 31 and extends to its exterior, where a sealing plate 34 is fixedly connected. The side of the sealing plate 34 closest to the fixed housing 31 is in contact with the fixed housing 31. A vacuum pump 35 is fixedly connected to the right side of the fixed housing 31, and the suction pipe at the top of the vacuum pump 35 is connected to the fixed housing 31. Inside the fixed housing 31, on the left side of the partitions 32, is... A movable sealing rubber plate 36 is provided. The right side of the sealing rubber plate 36 is in contact with the left side of the partition plate 32. The left side, front and back of the sealing rubber plate 36 are in close contact with the inner wall of the fixed shell 31, respectively. An air suction head 37 is fixedly connected to the inner wall of the through groove on the left side of the sealing rubber plate 36. A flexible hose 38 is fixedly connected to the top of the air suction head 37 and communicates with it. The hose 38 is long enough not to affect the movement of the air suction head 37. An air suction pipe 39 is fixedly connected to the top of the hose 38 and communicates with it. The end of the air suction pipe 39 near the furnace body 1 passes through the fixed shell 31 and the furnace body 1 and extends into the interior of the furnace body 1. The surface of the air suction pipe 39 is fixedly connected to the inner wall of the fixed shell 31. A valve is provided on the air suction pipe 39. A gas guide pipe is fixedly connected to the right side of the top of the furnace body 1 and communicates with it. A valve is provided on the gas guide pipe. Both the air suction pipe 39 and the gas guide pipe are high-temperature resistant stainless steel pipes.

[0023] The drive adjustment assembly 4 includes an electric push rod 41, which is installed at the bottom of the fixed housing 31. A movable plate 42 is fixedly connected to the bottom end of the electric push rod 41. An adjustment block 43 is fixedly connected to the left side of the top of the movable plate 42. The top of the adjustment block 43 penetrates the fixed housing 31 and extends into it, where it is fixedly connected to the bottom of the sealing rubber plate 36.

[0024] A sealing block 7 is fixedly connected to the bottom of the fixed shell 31 and on the surface of the adjusting block 43. The inner wall of the sealing block 7 is in contact with the surface of the adjusting block 43. By setting the sealing block 7, the sealing performance between the adjusting block 43 and the fixed shell 31 is improved.

[0025] The limiting and fixing assembly 5 includes two slide grooves 51, which are respectively opened on the right side of the top and bottom of the fixing shell 31. The left and right sides of the inner wall of the slide groove 51 are fixedly connected by slide rods 52. Sliding blocks 53 are slidably connected to the surface of the slide rods 52. The two sliding blocks 53, on their opposite sides, pass through the slide grooves 51 and extend to their outer sides, where limiting plates 54, which cooperate with sealing plates 34, are fixedly connected. The side of the limiting plate 54 closest to the sealing plate 34 is in contact with the sealing plate 34. The right side of the fixing shell 31 is fixedly connected to... The support block 55 has a sealing plug 57 fixedly connected to its bottom via a traction rope 56. By setting the sealing plug 57, when the sealing plate 34 pulls a filter screen 33 out of the fixed shell 31, the sealing plug 57 can seal the opening on the fixed shell 31 where the filter screen 33 is placed. The slide rod 52 is fitted with a buffer spring 58. The elastic force of the buffer spring 58 ensures the stability of the limiting plate 54 on the sealing plate 34, thereby ensuring the stability of limiting the sealing plate 34.

[0026] The vacuum pump 35, electric push rod 41, carbon fiber heating tube 8 and temperature sensor 13 are electrically connected to the control panel. A storage battery is installed on the left side of the vertical plate 6, which supplies power to the electrical equipment.

[0027] When the top filter screen 33 needs to be removed, first activate the electric push rod 41. The electric push rod 41 drives the sealing rubber plate 36 downward through the adjusting block 43. The sealing rubber plate 36 drives the suction head 37 downward. The suction head 37 stretches the hose 38, causing the suction head 37 to move to the left side of the bottom filter screen 33. At this time, the suction force generated by the vacuum pump 35 will connect the bottom filter screen 33 and the suction head 37, pulling the top limiting plate 54 to the left. The limiting plate 54 drives the slider 53 to press the buffer spring 58 to the right, causing the limiting plate 54 and the sealing plate 34 to separate. Then, the top sealing plate 34 can be pulled upward. The sealing plate 34 drives the filter screen 33 upward to be pulled out from the fixed shell 31. Then, the opening at the top of the fixed shell 31 is sealed by the sealing plug 57.

[0028] Through the cooperation of the fixed housing 31, partition 32, filter screen 33, sealing plate 34, vacuum pump 35, sealing rubber plate 36, suction head 37, hose 38, suction pipe 39, electric push rod 41, movable plate 42 and adjusting block 43, when a filter screen 33 becomes clogged and needs to be disassembled for cleaning, the vacuum pump 35 is prevented from having to stop and wait, so that the disassembly and assembly of the filter screen 33 will not affect the operation of the vacuum pump 35 and avoid affecting work efficiency. By setting the limit fixing component 5, the filter screen 33 can be easily disassembled, while ensuring the stability of the filter screen 33 within the fixed housing 31.

[0029] In use, open the furnace lid, place the workpiece to be sintered on the placement plate 10, close the furnace lid, start the vacuum pump 35 to draw a vacuum, and at the same time open the valve on the suction pipe 39. Vacuum is drawn into the furnace body 1 through the suction head 37, hose 38 and suction pipe 39. Impurities in the gas are filtered by the filter screen 33 located at the top. After the vacuum is completed, close the valve on the suction pipe 39, set the sintering temperature on the control panel, heat the carbon fiber heating tube 8, and monitor the temperature in real time with the temperature sensor 13. When the filter screen 33 located at the top becomes blocked, start the electric push rod 41 to move the suction head 37 to the left side of the filter screen 33 located at the bottom, and then continue to draw a vacuum through the filter screen 33 located at the bottom, so that the filter screen 33 located at the top can be removed.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel vacuum sintering furnace, characterized in that: The furnace includes a furnace body (1), a base (2) is installed at the bottom of the furnace body (1), a vertical plate (6) is installed at the top of the base (2), a filter connection assembly (3) is provided on the vertical plate (6), a drive adjustment assembly (4) is provided on the filter connection assembly (3), and a limit fixing assembly (5) is provided on the filter connection assembly (3).

2. The novel vacuum sintering furnace according to claim 1, characterized in that: The filter connection assembly (3) includes a fixed shell (31), which is installed on the right side of the vertical plate (6). The front and rear sides of the inner wall of the fixed shell (31) are fixedly connected by a partition (32). The top and bottom of the partition (32) are provided with pluggable filter screens (33). The side of the filter screen (33) away from the partition (32) passes through the fixed shell (31) and extends to its outside, where a sealing plate (34) is installed.

3. The novel vacuum sintering furnace according to claim 2, characterized in that: A vacuum pump (35) is installed on the right side of the fixed housing (31). A movable sealing rubber plate (36) is provided inside the fixed housing (31) and on the left side of the partition (32). An air suction head (37) is installed on the inner wall of the through groove on the left side of the sealing rubber plate (36). A flexible hose (38) communicating with the air suction head (37) is installed at the top of the air suction head (37). An air suction pipe (39) communicating with the air suction head (38) is installed at the top of the flexible hose (38).

4. The novel vacuum sintering furnace according to claim 3, characterized in that: The drive adjustment assembly (4) includes an electric push rod (41), which is installed at the bottom of the fixed housing (31). A movable plate (42) is installed at the bottom end of the electric push rod (41). An adjustment block (43) is installed on the left side of the top of the movable plate (42). The top of the adjustment block (43) penetrates the fixed housing (31) and extends into it to be fixedly connected to the bottom of the sealing rubber plate (36).

5. The novel vacuum sintering furnace according to claim 4, characterized in that: The limiting and fixing component (5) includes a slide groove (51). There are two slide grooves (51) and they are respectively opened on the right side of the top and bottom of the fixing shell (31). The left and right sides of the inner wall of the slide groove (51) are fixedly connected by a slide rod (52). A slider (53) is slidably connected to the surface of the slide rod (52).

6. The novel vacuum sintering furnace according to claim 5, characterized in that: The two sliders (53) are respectively connected to the slide groove (51) on the side away from each other and are respectively installed with a limiting plate (54) that cooperates with the sealing plate (34). A support block (55) is installed on the right side of the fixed shell (31), and a sealing plug (57) is installed at the bottom of the support block (55) by a traction rope (56).

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