A hot press furnace

Abstract

The utility model discloses a hot press, including the furnace body with hearth and three in the hearth along annular path interval arrangement's electrically conductive support, and each electrically conductive support is fixed on the furnace body through the electrically conductive connecting mechanism of connection with the power, and the intermediate electrically conductive seat is connected through the insulating connecting piece between any two adjacent electrically conductive supports, and the electrically conductive support and the intermediate electrically conductive seat of interconnection are fixedly installed with the heating tube subassembly, and the furnace body is equipped with the insulating connecting assembly of connecting and fixing the intermediate electrically conductive seat. The hot press has can avoid the influence production efficiency and material waste, is favorable to reduce production and maintenance cost and the advantages such as.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnace technology, and specifically to a hot press furnace. Background Technology

[0002] A hot press furnace is a special material preparation equipment that integrates high-temperature heating and mechanical pressure. It is mainly used for the densification sintering, diffusion bonding, and hot pressing of high-performance materials such as powder metallurgy, ceramic materials, composite materials, and cemented carbide. The heating system is an important part of the hot press furnace. The heating system of a current hot press furnace generally includes three conductive supports arranged at intervals along a circular path inside the furnace chamber. Each conductive support is installed and fixed to the furnace body through a conductive connection mechanism connected to a three-phase power supply. An intermediate conductive seat is connected between any two adjacent conductive supports. The intermediate conductive seats are connected to the conductive supports through insulating connectors. That is, the three conductive supports and the three intermediate conductive seats are connected to form a ring structure through insulating connectors. A heating tube assembly is fixedly installed between each conductive support and the connected intermediate conductive seat. The heating tube assembly is generally U-shaped, and the two ends of the U-shaped heating tube assembly are fixedly connected to the conductive support and the intermediate conductive seat, respectively. In actual production, insulating connectors are prone to deformation under the high temperature environment inside the furnace, and in severe cases, they may even break. Deformation or breakage of the insulating connectors can cause changes in the position of the intermediate conductive base, forcing the heating tube assembly that is fixed to the conductive support to break. When the heating tube assembly breaks, production must be interrupted for replacement and repair, which not only affects production efficiency and wastes materials in production, but also increases production and maintenance costs. 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 press furnace that can avoid affecting production efficiency and material waste, and help reduce production and maintenance costs.

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

[0005] A hot press furnace includes a furnace body with a furnace chamber and three conductive supports arranged sequentially at intervals along a circular path within the furnace chamber. Each conductive support is installed and fixed on the furnace body via a conductive connection mechanism connected to a power source. An intermediate conductive seat is connected between any two adjacent conductive supports via an insulating connector. A heating tube assembly is fixedly installed between each conductive support and the connected intermediate conductive seat. An insulating connection assembly for connecting and fixing the intermediate conductive seat is provided on the furnace body.

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

[0007] The insulating connection assembly includes a support rod connected to the intermediate conductive base and a mounting base fixed on the furnace body. The mounting base has a through mounting hole that connects the furnace chamber and the outside of the furnace body. The support rod is installed in the through mounting hole through a detachable connection mechanism that allows for disassembly and assembly operations at the end of the through mounting hole that corresponds to the outside of the furnace body. The mounting base also has a detachable closing mechanism that closes the end of the through mounting hole that corresponds to the outside of the furnace body.

[0008] The detachable connection mechanism includes a clamping plate, an insertion positioning part located at one end of the support rod, and an annular boss located in the through mounting hole. The insertion positioning part is provided with a shoulder. The insertion positioning part is inserted and positioned in the through mounting hole from one end opening corresponding to the furnace chamber. The shoulder abuts against the mounting seat. The clamping plate is inserted into the through mounting hole from one end opening corresponding to the outside of the furnace body and connected to the insertion positioning part through a first fastener. The clamping plate abuts against the annular boss to force the shoulder to remain abutted against the mounting seat.

[0009] The detachable sealing mechanism includes a blocking plate, which is mounted on the mounting base by a plurality of second fasteners and closes the through mounting hole at one end corresponding to the outside of the furnace body. A sealing ring is installed between the blocking plate and the mounting base.

[0010] The support rod is a carbon fiber rod, and an insulating sleeve is detachably fitted onto the outside of the support rod. The insulating sleeve is detachably connected to the intermediate conductive base.

[0011] The intermediate conductive base is provided with a through hole, and the insulating sleeve passes through the through hole and supports the intermediate conductive base. The end of the insulating sleeve corresponding to the furnace is provided with a blocking boss to prevent the insulating sleeve from coming out of the through hole.

[0012] The through hole is located on the connecting lug fixed to the intermediate conductive base.

[0013] One end of the insulating sleeve abuts against the insertion positioning part, and the end of the support rod corresponding to the furnace is connected to a pressure plate that presses and fixes the insulating sleeve through a third fastener.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] The hot press furnace of this utility model is equipped with an insulating connection assembly to connect and fix the intermediate conductive seat to the furnace body. When the insulating connector connecting the conductive support and the intermediate conductive seat deforms or breaks due to high temperature, the intermediate conductive seat can still maintain its installation posture and position without change under the connection and fixing action of the insulating connection assembly, which will not cause the heating tube assembly to break. This can avoid the problem of material waste caused by production interruption and affect production efficiency, and reduce production and maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the hot press furnace.

[0017] Figure 2 This is a top-section structural schematic diagram of the hot press furnace.

[0018] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Legend:

[0020] 1. Furnace body; 11. Furnace chamber; 2. Conductive support; 3. Conductive connection mechanism; 4. Intermediate conductive seat; 41. Through hole; 42. Connecting lug; 5. Heating tube assembly; 6. Insulating connection assembly; 61. Support rod; 611. Insertion positioning part; 612. Shoulder; 62. Mounting seat; 621. Through mounting hole; 622. Annular boss; 63. Clamping plate; 64. Blocking plate; 65. Insulating sleeve; 651. Blocking boss; 66. Pressure plate; 100. Insulating connector; 101. First fastener; 102. Second fastener; 103. Third fastener. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 and Figure 2 As shown, the hot press furnace of this embodiment includes a furnace body 1 with a furnace chamber 11 and three conductive supports 2 arranged sequentially at intervals along a circular path within the furnace chamber 11. Each conductive support 2 is installed and fixed on the furnace body 1 via a conductive connection mechanism 3 connected to a power source. An intermediate conductive seat 4 is connected between any two adjacent conductive supports 2 via an insulating connector 100. A heating element assembly 5 is fixedly installed between each conductive support 2 and the connected intermediate conductive seat 4. An insulating connection assembly 6 is provided on the furnace body 1 to connect and fix the intermediate conductive seat 4. The hot press furnace is equipped with an insulating connection assembly 6 to connect and fix the intermediate conductive seat 4 to the furnace body 1. When the insulating connector 100 connecting the conductive support 2 and the intermediate conductive seat 4 deforms or breaks due to high temperature, the intermediate conductive seat 4 can still maintain its installation posture and position without change under the connection and fixing action of the insulating connection assembly 6, which will not cause the heating element assembly 5 to break. This can avoid the problem of material waste caused by production interruption and production efficiency, and reduce production and maintenance costs.

[0023] In a preferred embodiment, such as Figure 3As shown, the insulating connection assembly 6 includes a support rod 61 connected to the intermediate conductive base 4 and a mounting base 62 fixed on the furnace body 1. The mounting base 62 has a through mounting hole 621 connecting the furnace chamber 11 and the outside of the furnace body 1. The support rod 61 is installed in the through mounting hole 621 through a detachable connection mechanism that allows for installation and removal operations at the end of the through mounting hole 621 corresponding to the outside of the furnace body 1. The mounting base 62 also has a detachable sealing mechanism that closes the end of the through mounting hole 621 corresponding to the outside of the furnace body 1. This detachable sealing mechanism prevents the furnace chamber 11 from communicating with the external environment of the furnace body 1, thus ensuring the airtightness of the furnace chamber 11. The insulating connection assembly 6 allows for the installation and removal of the support rod 61 by operating the detachable connection mechanism through the end of the through mounting hole 621 corresponding to the outside of the furnace body 1, making installation and removal simple.

[0024] In a preferred embodiment, the detachable connection mechanism includes a clamping plate 63, an insertion positioning part 611 located at one end of the support rod 61, and an annular boss 622 located in the through mounting hole 621. The insertion positioning part 611 is provided with a shoulder 612. The insertion positioning part 611 is inserted and positioned in the through mounting hole 621 from one end opening corresponding to the furnace chamber 11. The shoulder 612 abuts against the mounting seat 62. The clamping plate 63 is inserted into the through mounting hole 621 from one end opening corresponding to the outside of the furnace body 1 and connected to the insertion positioning part 611 through the first fastener 101. The clamping plate 63 abuts against the annular boss 622 to force the shoulder 612 to remain abutted against the mounting seat 62. During assembly, the detachable sealing mechanism is removed. The insertion positioning part 611 is inserted into the through mounting hole 621, with one end opening corresponding to the furnace chamber 11, so that the shoulder 612 abuts against the mounting base 62. The clamping plate 63 is inserted into the through mounting hole 621, with one end opening corresponding to the furnace body 1. The clamping plate 63 and the insertion positioning part 611 are connected by the first fastener 101, so that the clamping plate 63 abuts against the annular boss 622. The clamping plate 63 forces the shoulder 612 to remain abutted against the mounting base 62, and the support rod 61 can be fixed on the mounting base 62. Then, the detachable sealing mechanism is installed. During disassembly, the detachable sealing mechanism is removed first, and the first fastener 101 is removed. The insertion positioning part 611 and the clamping plate 63 can then be removed from the through mounting hole 621. This detachable connection mechanism has a simple structure, is quick and convenient to install and disassemble, and has good installation stability. Preferably, the dimensions of the insertion positioning part 611 and the through mounting hole 621 are basically the same, so that after the insertion positioning part 611 is inserted into the through mounting hole 621, an insertion positioning fit is formed, which can improve the installation stability of the support rod 61.

[0025] In a preferred embodiment, the detachable sealing mechanism includes a blocking plate 64, which is mounted on the mounting base 62 by a plurality of second fasteners 102 and closes the end opening of the through mounting hole 621 corresponding to the outside of the furnace body 1. A sealing ring is installed between the blocking plate 64 and the mounting base 62, which effectively ensures the sealing performance. This detachable sealing mechanism has a simple structure and is easy to install and disassemble.

[0026] In a preferred embodiment, the support rod 61 is a carbon fiber rod, and an insulating sleeve 65 is detachably fitted onto the outside of the support rod 61. The insulating sleeve 65 is detachably connected to the intermediate conductive seat 4, and serves as insulation to prevent the intermediate conductive seat 4 from being electrically connected to the furnace body 1 through the support rod 61, thus eliminating safety hazards. The support rod 61 is made of carbon fiber, which has good high-temperature resistance and support capacity, is not easily deformed, and has a relatively low cost. The insulating sleeve 65, on the other hand, needs to be made of insulating materials suitable for high-temperature environments (such as boron nitride), which has a higher cost. The combination of the support rod 61 and the insulating sleeve 65 ensures insulation, high-temperature resistance, and stable and reliable support, while reducing the overall manufacturing cost of the insulating connection assembly 6.

[0027] In a preferred embodiment, the intermediate conductive base 4 has a through hole 41, and the insulating sleeve 65 passes through the through hole 41 and supports the intermediate conductive base 4. The end of the insulating sleeve 65 corresponding to the furnace chamber 11 has a blocking boss 651 to prevent the insulating sleeve 65 from coming out of the through hole 41. The support rod 61 is inserted into the through hole 41, and the end of the insulating sleeve 65 without the blocking boss 651 is fitted onto the support rod 61 and inserted into the through hole 41. Then, the insulating sleeve 65 and the support rod 61 are connected and fixed to complete the connection and installation with the intermediate conductive base 4. Its structure is simple, low in cost, and easy to assemble and disassemble.

[0028] In a preferred embodiment, the through hole 41 is provided on the connecting lug 42 fixed to the intermediate conductive base 4. This avoids directly drilling holes in the intermediate conductive base 4, which would affect the structural strength, and the drilling is convenient. The connecting lug 42 can be prefabricated and then welded to the intermediate conductive base 4.

[0029] In a preferred embodiment, one end of the insulating sleeve 65 abuts against the insertion positioning part 611, and the end of the support rod 61 corresponding to the furnace chamber 11 is connected to a pressure plate 66 that presses and fixes the insulating sleeve 65 through a third fastener 103. The insulating sleeve 65 is sleeved on the support rod 61 and axially positioned by the pressure plate 66 and the insertion positioning part 611, which provides good installation stability and a simple, compact structure that is easy to assemble and disassemble.

[0030] The first fastener 101, the second fastener 102 and the third fastener 103 mentioned above can all be screws.

[0031] 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 press furnace, comprising a furnace body (1) having a furnace chamber (11) and three conductive supports (2) arranged sequentially at intervals along a circular path within the furnace chamber (11), each conductive support (2) being mounted and fixed on the furnace body (1) via a conductive connection mechanism (3) connected to a power source, an intermediate conductive seat (4) being connected between any two adjacent conductive supports (2) via an insulating connector (100), and a heating tube assembly (5) being fixedly installed between each conductive support (2) and the connected intermediate conductive seat (4), characterized in that: The furnace body (1) is provided with an insulating connection assembly (6) that connects and fixes the intermediate conductive base (4).

2. The hot press furnace according to claim 1, characterized in that: The insulating connection assembly (6) includes a support rod (61) connected to the intermediate conductive seat (4) and a mounting seat (62) fixed on the furnace body (1). The mounting seat (62) is provided with a through mounting hole (621) connecting the furnace chamber (11) and the outside of the furnace body (1). The support rod (61) is installed in the through mounting hole (621) through a detachable connection mechanism that allows for disassembly and assembly operations at one end of the through mounting hole (621) corresponding to the outside of the furnace body (1). The mounting seat (62) is also provided with a detachable closing mechanism that closes the one end of the through mounting hole (621) corresponding to the outside of the furnace body (1).

3. The hot press furnace according to claim 2, characterized in that: The detachable connection mechanism includes a clamping plate (63), a plug-in positioning part (611) located at one end of the support rod (61), and an annular boss (622) located in the through mounting hole (621). The plug-in positioning part (611) is provided with a shoulder (612). The plug-in positioning part (611) is inserted and positioned in the through mounting hole (621) with one end opening corresponding to the furnace (11). The shoulder (612) abuts against the mounting seat (62). The clamping plate (63) is inserted into the through mounting hole (621) with one end opening corresponding to the outside of the furnace body (1) and connected to the plug-in positioning part (611) through a first fastener (101). The clamping plate (63) abuts against the annular boss (622) to force the shoulder (612) to remain abutted against the mounting seat (62).

4. The hot press furnace according to claim 2, characterized in that: The detachable sealing mechanism includes a blocking plate (64), which is mounted on the mounting base (62) by a plurality of second fasteners (102) and closes the through mounting hole (621) at one end corresponding to the outside of the furnace body (1). A sealing ring is installed between the blocking plate (64) and the mounting base (62).

5. The hot press furnace according to claim 3, characterized in that: The support rod (61) is a carbon fiber rod, and an insulating sleeve (65) is detachably installed on the outside of the support rod (61). The insulating sleeve (65) is detachably connected to the intermediate conductive seat (4).

6. The hot press furnace according to claim 5, characterized in that: The intermediate conductive seat (4) is provided with a through hole (41), and the insulating sleeve (65) passes through the through hole (41) and supports the intermediate conductive seat (4). The insulating sleeve (65) is provided with a blocking boss (651) at one end corresponding to the furnace (11) to prevent the insulating sleeve (65) from coming out of the through hole (41).

7. The hot press furnace according to claim 6, characterized in that: The through hole (41) is provided on the connecting lug (42) fixed to the intermediate conductive base (4).

8. The hot press furnace according to claim 5, characterized in that: One end of the insulating sleeve (65) abuts against the insertion positioning part (611), and the support rod (61) is connected to a pressure plate (66) that presses and fixes the insulating sleeve (65) through a third fastener (103) at one end inside the furnace (11).

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