Hot press oscillating sintering furnace

Abstract

This utility model discloses a hot-pressing oscillation sintering furnace, including a furnace frame, a furnace body, a first pressure head, a second pressure head, and a pressurizing drive mechanism. The pressurizing drive mechanism is connected to the first pressure head and is used to drive the first pressure head to move towards the second pressure head to pressurize the product. The second pressure head is mounted on the furnace frame through an elastic mechanism. When the first pressure head moves towards the second pressure head to pressurize the product, it forces the elastic mechanism to undergo elastic deformation in the pressing direction of the first pressure head. This hot-pressing oscillation sintering furnace has advantages such as improving material density and mechanical properties, simple structure, small footprint, low cost, convenient assembly and maintenance, and easy control.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment technology, specifically to a hot-pressing oscillation sintering furnace. Background Technology

[0002] Hot-pressing oscillation sintering furnaces are high-temperature thermoforming process equipment used for new materials such as powder metallurgy and functional ceramics. They combine high-temperature heating and high-pressure pressing technologies, subjecting powder materials to uniform pressure and high temperature within a mold, thereby achieving material densification and sintering. Existing hot-pressing oscillation sintering furnaces are divided into two modes: unidirectional pressure oscillation and bidirectional pressure oscillation. Unidirectional pressure oscillation uses only one cylinder to drive the pressure head, applying pressure in one direction. It has advantages such as simple structure, low cost, and convenient operation and maintenance, but its pressure gradient is significant, resulting in a density gradient along the pressure direction (higher density near the pressure head and lower density further away). Bidirectional pressure oscillation uses two cylinders to drive two pressure heads moving in opposite directions, applying pressure. Its pressure distribution is uniform, significantly reducing the density gradient along the pressure axis, enabling more uniform material densification, reducing internal stress, and thus improving the material's density and mechanical properties. However, it also has problems such as complex structure, large footprint, high cost, inconvenient assembly and maintenance, and greater control difficulty. Currently, there is no hot-pressing oscillation sintering furnace that can combine the advantages of both unidirectional and bidirectional pressure oscillation modes. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a hot-pressing oscillation sintering furnace that can improve the density and mechanical properties of materials, has a simple structure, occupies little space, has low cost, is easy to assemble and maintain, and is easy to control.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A hot-pressing oscillating sintering furnace includes a furnace frame, a furnace body, a first pressure head, a second pressure head, and a pressurizing drive mechanism. The pressurizing drive mechanism is connected to the first pressure head and is used to drive the first pressure head to move toward the second pressure head to pressurize the product. The second pressure head is mounted on the furnace frame through an elastic mechanism. When the first pressure head moves toward the second pressure head to pressurize the product, it can force the elastic mechanism to produce elastic deformation in the pressurizing direction of the first pressure head.

[0006] As a further improvement to the above technical solution:

[0007] The elastic mechanism is a single-unit elastic element capable of elastic contraction deformation in the direction of the first pressure head.

[0008] The elastic mechanism is one or more compression springs connected between the furnace frame and the second pressure head.

[0009] The elastic mechanism is a composite elastic device made of multiple elastic elements that can produce elastic contraction deformation in the direction of the first pressure head.

[0010] The elastic mechanism is a rubber damper composed of alternating layers of rubber and rigid sheets.

[0011] The first pressure head is located below the second pressure head.

[0012] The first pressure head is located above the second pressure head.

[0013] The furnace frame includes multiple guide columns and support beams mounted on the multiple guide columns. The support beams are provided with mounting cavities, and the elastic mechanism is installed in the mounting cavities. A pressure plate is detachably mounted on the support beams by fasteners, and the pressure plate presses and fixes the elastic mechanism in the mounting cavities.

[0014] The pressure plate is provided with a positioning countersunk hole, and the end of the elastic mechanism extends into the positioning countersunk hole to form a positioning.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] The second pressure head of the hot-pressing oscillation sintering furnace of this invention is mounted on the furnace frame through an elastic mechanism. When the first pressure head moves toward the second pressure head to pressurize the product, the first pressure head can force the elastic mechanism to produce elastic deformation in the pressing direction of the first pressure head. The amount of elastic deformation of the elastic mechanism will change with the pressure of the first pressure head, thereby achieving the effect of bidirectional pressure oscillation, which can improve the density and mechanical properties of the material. At the same time, the elastic deformation does not require a power mechanism, which can simplify the structure of the hot-pressing oscillation sintering furnace, reduce the space occupied, reduce costs, facilitate assembly and maintenance, and reduce control difficulty. Attached Figure Description

[0017] Figure 1 This is a schematic cross-sectional view of the hot-pressing oscillation sintering furnace in Example 1.

[0018] Figure 2 This is a partially enlarged cross-sectional view of the elastic mechanism installed on the support beam in Example 1.

[0019] Figure 3 This is a schematic cross-sectional view of the hot-pressing oscillation sintering furnace in Example 2.

[0020] Legend:

[0021] 1. Furnace frame; 11. Guide column; 12. Support beam; 121. Mounting cavity; 13. Pressure plate; 131. Positioning countersunk hole; 2. Furnace body; 3. First pressure head; 4. Second pressure head; 5. Pressurization drive mechanism; 6. Elastic mechanism. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, the hot-pressing oscillation sintering furnace of this embodiment includes a furnace frame 1, a furnace body 2, a first pressure head 3, a second pressure head 4, and a pressure driving mechanism 5. The pressure driving mechanism 5 is connected to the first pressure head 3 and is used to drive the first pressure head 3 to move towards the second pressure head 4 to pressurize the product. The second pressure head 4 is mounted on the furnace frame 1 through an elastic mechanism 6. When the first pressure head 3 moves towards the second pressure head 4 to pressurize the product, it can force the elastic mechanism 6 to undergo elastic deformation in the pressing direction of the first pressure head 3. The second pressure head 4 of this hot-pressing oscillation sintering furnace is mounted on the furnace frame 1 through the elastic mechanism 6. When the first pressure head 3 moves towards the second pressure head 4 to pressurize the product, the first pressure head 3 can force the elastic mechanism 6 to undergo elastic deformation in the pressing direction of the first pressure head 3. The amount of elastic deformation of the elastic mechanism changes with the pressure of the first pressure head 3, thereby achieving the effect of bidirectional pressure oscillation, which can improve the density and mechanical properties of the material. At the same time, the elastic deformation 6 does not require a power mechanism, which can simplify the structure of the hot-pressing oscillation sintering furnace, reduce the space occupied, reduce costs, facilitate assembly and maintenance, and reduce control difficulty.

[0025] In this embodiment, the elastic mechanism 6 is a composite elastic device made of multiple elastic elements that can generate elastic contraction deformation in the pressing direction of the first pressure head 3. Preferably, the elastic mechanism 6 is a rubber damper composed of alternating layers of rubber and rigid sheets. This rubber damper can be a commercially available part, or it can be modified based on an existing commercially available part according to the actual required parameter performance requirements.

[0026] In other embodiments, the composite elastic device may also employ other existing technologies. The elastic mechanism 6 may also be a single-unit elastic element capable of elastic contraction deformation in the pressing direction of the first pressure head 3. This single-unit elastic element can be directly connected and installed between the furnace frame 1 and the second pressure head 4, which is simple to install and assemble and has low cost. Preferably, the elastic mechanism 6 is one or more compression springs connected between the furnace frame 1 and the second pressure head 4. The elastic mechanism 6 may also employ other existing mechanisms capable of elastic contraction deformation in the pressing direction of the first pressure head 3.

[0027] In this embodiment, the first pressure head 3 is located below the second pressure head 4. That is, the first pressure head 3 acts as the lower pressure head in the hot-pressing oscillating sintering furnace, contacting the lower end of the product to apply pressure, while the second pressure head 4 acts as the upper pressure head in the hot-pressing oscillating sintering furnace, contacting the upper end of the product to apply pressure. The corresponding pressure driving mechanism 5 is located below the furnace body 2, and the elastic mechanism 6 is located above the furnace body 2. This configuration is suitable for furnace types where the pressure driving mechanism 5 is located at the lower part of the hot-pressing oscillating sintering furnace. The furnace frame 1, furnace body 2, first pressure head 3, second pressure head 4, and pressure driving mechanism 5 in this embodiment are all from existing technologies, and the pressure driving mechanism 5 can be a hydraulic cylinder.

[0028] In this embodiment, the furnace frame 1 includes multiple guide columns 11 and support beams 12 mounted on the guide columns 11. Each support beam 12 has a mounting cavity 121, in which an elastic mechanism 6 is installed. A pressure plate 13 is detachably mounted on the support beam 12 using fasteners. The pressure plate 13 presses and fixes the elastic mechanism 6 within the mounting cavity 121. The mounting cavity 121 on the support beam 12 provides protection for the elastic mechanism 6, improves aesthetics, and allows the installation position of the elastic mechanism 6 to extend beyond the end of the guide columns 11, thus shortening the length of the guide columns 11 and reducing costs.

[0029] In this embodiment, the pressure plate 13 is provided with a positioning countersunk hole 131, and the end of the elastic mechanism 6 extends into the positioning countersunk hole 131 to form a positioning, which can improve the ease of installation and stability of the elastic mechanism 6.

[0030] Example 2

[0031] The hot-pressing oscillating sintering furnace in this embodiment is basically the same as that in Embodiment 1, the main difference being that, Figure 3 As shown, in this embodiment, the first pressure head 3 is located above the second pressure head 4. That is, the first pressure head 3 is the upper pressure head that contacts the upper end of the product to apply pressure in the hot pressing oscillating sintering furnace, and the second pressure head 4 is the lower pressure head that contacts the lower end of the product to apply pressure in the hot pressing oscillating sintering furnace. The corresponding pressure driving mechanism 5 is set above the furnace body 2, and the elastic mechanism 6 is set below the furnace body 2. This is suitable for furnace types where the pressure driving mechanism 5 is set at the upper part of the hot pressing oscillating sintering furnace.

[0032] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hot-pressing oscillating sintering furnace, comprising a furnace frame (1), a furnace body (2), a first pressure head (3), a second pressure head (4), and a pressurizing drive mechanism (5), wherein the pressurizing drive mechanism (5) is connected to the first pressure head (3) for driving the first pressure head (3) to move towards the second pressure head (4) to pressurize the product, characterized in that: The second pressure head (4) is mounted on the furnace frame (1) via an elastic mechanism (6). When the first pressure head (3) moves toward the second pressure head (4) to pressurize the product, it can force the elastic mechanism (6) to generate elastic deformation in the pressing direction of the first pressure head (3).

2. The hot-pressing oscillating sintering furnace according to claim 1, characterized in that: The elastic mechanism (6) is a single elastic element that can generate elastic contraction deformation in the pressure direction of the first pressure head (3).

3. The hot-pressing oscillating sintering furnace according to claim 2, characterized in that: The elastic mechanism (6) is one or more compression springs connected between the furnace frame (1) and the second pressure head (4).

4. The hot-pressing oscillating sintering furnace according to claim 1, characterized in that: The elastic mechanism (6) is a composite elastic device made of multiple elastic elements that can generate elastic contraction deformation in the pressure direction of the first pressure head (3).

5. The hot-pressing oscillating sintering furnace according to claim 4, characterized in that: The elastic mechanism (6) is a rubber damper composed of alternating layers of rubber and rigid sheets.

6. The hot-pressing oscillating sintering furnace according to claim 1, characterized in that: The first pressure head (3) is located below the second pressure head (4).

7. The hot-pressing oscillating sintering furnace according to claim 1, characterized in that: The first pressure head (3) is located above the second pressure head (4).

8. The hot-pressing oscillating sintering furnace according to any one of claims 1 to 7, characterized in that: The furnace frame (1) includes multiple guide columns (11) and support beams (12) installed on the multiple guide columns (11). The support beams (12) are provided with mounting recesses (121). The elastic mechanism (6) is installed in the mounting recesses (121). A pressure plate (13) is detachably installed on the support beams (12) by fasteners. The pressure plate (13) presses and fixes the elastic mechanism (6) in the mounting recesses (121).

9. The hot-pressing oscillating sintering furnace according to claim 8, characterized in that: The pressure plate (13) is provided with a positioning countersunk hole (131), and the end of the elastic mechanism (6) extends into the positioning countersunk hole (131) to form a positioning.

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