Vacuum hot pressing furnace

Abstract

The utility model relates to the technical field of electric furnaces and discloses a vacuum hot pressing furnace which comprises a bottom plate, a second fixing box is fixedly arranged on the upper end face of the bottom plate, a first connecting pipeline is arranged on the right side wall of the second fixing box, and the other end of the first connecting pipeline is fixedly connected with an extraction valve. A second connecting pipeline is fixedly connected to the right end face of the extraction valve, a fixing groove is formed in the top wall of the second fixing box, and a sealing sleeve is arranged in the fixing groove. Compared with the mode that an upper die plate is arranged in the treatment box, operation of placing materials is not convenient, namely, a fixing groove is formed in the top wall of a second fixing box, the treatment box with an opening in the top wall is arranged, the moving range of the upper die plate is enlarged, the device can still be in a sealed state during operation through the arrangement of the sealing sleeve, and operation is not affected; meanwhile, the extraction valve is connected with an external vacuum pump, so that the interior of the fixed box II is in negative-pressure vacuum, that is, the treatment box is in negative-pressure vacuum, and the vacuum suction range is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric furnaces, in particular to a vacuum hot pressing furnace. Background Art

[0002] The vacuum hot pressing furnace is mainly composed of a furnace body, a furnace door, a heating and heat preservation and temperature measurement system, a vacuum system, an inflation system, a water cooling system, a control system, a hydraulic system, etc. The vacuum hot pressing furnace is a cycle operation type and is widely used in hot pressing and sintering treatment of cemented carbide, functional ceramics, powder metallurgy, etc. under high temperature and high vacuum conditions. It is widely used in the forming of ceramic tools.

[0003] The vacuum hot pressing furnace is mainly composed of furnace body, furnace door, heating and heat preservation and temperature measurement system, vacuum system, inflation system, water cooling system, control system, hydraulic system, etc. The vacuum hot pressing furnace is a cycle operation type and is widely used in hot pressing and sintering treatment under high temperature and high vacuum conditions in cemented carbide, functional ceramics, powder metallurgy, optical material processing, etc.

[0004] The upper template of the existing vacuum hot pressing furnace is arranged inside the processing box, which is not convenient for placing materials, thus causing difficulty for users to operate. At the same time, when the vacuum hot pressing furnace is evacuated, the vacuum suction range is small. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum hot pressing furnace, which can solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum hot pressing furnace, comprising a bottom plate, a fixed box 2 is fixedly arranged on the upper end surface of the bottom plate, a connecting pipe 1 is provided on the right side wall of the fixed box 2, an exhaust valve is fixedly connected to the other end of the connecting pipe 1, a connecting pipe 2 is fixedly connected to the right end surface of the exhaust valve, a fixing groove is provided on the top wall of the fixed box 2, a sealing sleeve is arranged inside the fixing groove, and a supporting assembly is arranged on the upper end of the bottom plate.

[0007] Preferably, the support assembly includes a fixed column arranged on the upper end of the base plate, six fixed columns are fixedly arranged on the upper end surface of the base plate, a fixed plate 1 is fixedly arranged on the upper end surface of the fixed column, a cylinder is fixedly installed on the upper end surface of the fixed plate 1, and an operating assembly is arranged at the lower end of the cylinder.

[0008] Preferably, the operating component includes a connecting rod and a fixed rod arranged at the lower end of the cylinder, the lower end of the cylinder is provided with a connecting rod, the connecting rod passes through a fixed plate, the output end of the cylinder is fixedly connected to one end of the connecting rod, the lower end of the connecting rod is provided with a fixed rod, and the lower end of the connecting rod is provided with a sealing component.

[0009] Preferably, the sealing assembly includes a sealing sleeve arranged at the lower end of the connecting rod, a cover plate is arranged at the lower end of the connecting rod, the cover plate is fixedly arranged on the lower end surface of the connecting rod, the sealing sleeve is fixedly arranged on the outer side of the cover plate, a fixing rod is fixedly arranged on the lower end surface of the cover plate, an upper template is fixedly arranged on the lower end surface of the fixing rod, a processing box is arranged inside the fixing box 2, and a heating assembly is arranged inside the processing box.

[0010] Preferably, the heating assembly includes a heating device and a heat conducting plate arranged inside the processing box, a support column is fixedly provided on the upper end of the inner bottom wall of the processing box, a lower template is fixedly provided on the upper end surface of the support column, a heating device is fixedly provided on the upper end surface of the lower template, a heat conducting plate is fixedly provided on the inner side wall of the heating device, and a storage assembly is provided at the lower end of the bottom plate.

[0011] Preferably, the storage component includes a fixed box 1 arranged at the lower end of the bottom plate, an electric control box is fixedly arranged on the inner top wall of the fixed box 1, a storage slot is opened inside the fixed box 1, a storage slot is arranged at the lower end of the electric control box, and an auxiliary component is arranged at the lower end of the fixed plate 1.

[0012] Preferably, the auxiliary components include cabinet door 1, handle 1, cabinet door 2 and handle 2 arranged at a lower end of the fixed plate, cabinet door 1 is opened on the front of the fixed box 2, handle 1 is fixedly set on the front of the cabinet door 1, a lock hole is opened on the front of the cabinet door 1, cabinet door 2 is opened on the front of the fixed box 1, and handle 2 is fixedly set on the front of the cabinet door 2.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a sealing sleeve, compared with an upper template arranged inside a processing box, which is not convenient for placing materials, a processing box with a top wall opening is provided with a fixed groove on the top wall of the fixed box two, thereby increasing the movement range of the upper template. Subsequently, the sealing sleeve is arranged so that the device can still be in a sealed state during operation without affecting the operation. At the same time, the exhaust valve is connected to an external vacuum pump, so that the interior of the fixed box two is in a negative pressure vacuum, that is, the processing box is in a negative pressure vacuum, and the vacuum suction range is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of a fixed box of the utility model;

[0018] Figure 4It is a schematic diagram of the three-dimensional structure of the second fixing box of the utility model.

[0019] In the figure: 1. bottom plate; 2. fixed box 1; 3. fixed column; 4. fixed box 2; 5. processing box; 6. support column; 7. lower template; 8. heating device; 9. heat conduction plate; 10. connecting pipe 1; 11. exhaust valve; 12. connecting pipe 2; 13. fixed plate 1; 14. cylinder; 15. storage tank; 16. connecting rod; 17. cover plate; 18. sealing sleeve; 19. fixed rod; 20. upper template; 21. cabinet door 1; 22. handle 1; 23. cabinet door 2; 24. handle 2; 25. electric control box; 26. fixed slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1 The figure shows a vacuum hot pressing furnace, comprising a bottom plate 1, a fixing box 2 4 is fixedly arranged on the upper end surface of the bottom plate 1, a connecting pipe 10 is provided on the right side wall of the fixing box 2 4, an exhaust valve 11 is fixedly connected to the other end of the connecting pipe 10, a connecting pipe 2 12 is fixedly connected to the right end surface of the exhaust valve 11, a fixing groove 26 is provided on the top wall of the fixing box 2 4, a sealing sleeve 18 is arranged inside the fixing groove 26, and a supporting assembly is arranged on the upper end of the bottom plate 1.

[0023] See also Figure 1 In the figure, the support assembly includes a fixed column 3 arranged at the upper end of the base plate 1, six fixed columns 3 are fixedly arranged on the upper end surface of the base plate 1, a fixed plate 13 is fixedly arranged on the upper end surface of the fixed column 3, a cylinder 14 is fixedly installed on the upper end surface of the fixed plate 13, and an operating assembly is arranged at the lower end of the cylinder 14.

[0024] In this embodiment, by setting the support assembly and setting six fixing columns 3, the effect of supporting the fixing plate 13 is achieved.

[0025] Working principle: The device can open the cabinet door 21, or directly add materials into the interior from the fixed groove 26, and then drive the fixed rod 19 to move downward through the cylinder 14, that is, drive the upper template 20 to move downward to squeeze the material. At the same time, the setting of the sealing sleeve 18 can block the fixed groove 26 to improve the sealing of the device. At the same time, the setting of the exhaust valve 11 first uses an external vacuum pump to connect the connecting pipe 12 to make the interior of the fixed box 4 in a negative pressure vacuum, and then by starting the heating device 8, the raw materials are hot-pressed on the left and right of the heat conduction plate 9. At the same time, the setting of the fixed box 1 has the effect of storing and setting the electric control box.

[0026] Example 2

[0027] See also Figure 1 This embodiment further explains Example 1. The operating assembly in the figure includes a connecting rod 16 and a fixing rod 19 arranged at the lower end of the cylinder 14. The lower end of the cylinder 14 is provided with a connecting rod 16, and the connecting rod 16 passes through the fixing plate 13. The output end of the cylinder 14 is fixedly connected to one end of the connecting rod 16. The lower end of the connecting rod 16 is provided with a fixing rod 19, and the lower end of the connecting rod 16 is provided with a sealing assembly.

[0028] In this embodiment, the cylinder 14 can drive the connecting rod 16 to move downward, thereby driving the fixing rod 19 to move downward.

[0029] See also Figure 1 In the figure, the sealing assembly includes a sealing sleeve 18 arranged at the lower end of the connecting rod 16, a cover plate 17 is arranged at the lower end of the connecting rod 16, the cover plate 17 is fixedly arranged on the lower end surface of the connecting rod 16, the sealing sleeve 18 is fixedly arranged on the outer side of the cover plate 17, a fixing rod 19 is fixedly arranged on the lower end surface of the cover plate 17, an upper template 20 is fixedly arranged on the lower end surface of the fixing rod 19, a processing box 5 is arranged inside the fixing box 4, and a heating assembly is arranged inside the processing box 5.

[0030] In this embodiment, a sealing sleeve 18 is disposed outside the cover plate 17 , and the height of the sealing sleeve 18 is much higher than the height of the fixing groove 26 , so when the upper template 20 moves, the sealing sleeve 18 can still block the fixing groove 26 .

[0031] See also Figure 1 In the figure, the heating assembly includes a heating device 8 and a heat conducting plate 9 arranged inside the processing box 5, a support column 6 is fixedly arranged on the upper end of the inner bottom wall of the processing box 5, a lower template 7 is fixedly arranged on the upper end surface of the support column 6, a heating device 8 is fixedly arranged on the upper end surface of the lower template 7, a heat conducting plate 9 is fixedly arranged on the inner side wall of the heating device 8, and a storage assembly is arranged at the lower end of the bottom plate 1.

[0032] In this embodiment, the heating device 8 is an electric heating element in the prior art, which will not be described in detail. At the same time, the setting of the heating device 8 can heat the material through the heat conducting plate 9.

[0033] See also Figure 3 In the figure, the storage component includes a fixed box 2 arranged at the lower end of the bottom plate 1, an electric control box 25 is fixedly arranged on the internal top wall of the fixed box 2, a storage slot 15 is opened inside the fixed box 2, a storage slot 15 is arranged at the lower end of the electric control box 25, and an auxiliary component is arranged at the lower end of the fixed plate 13.

[0034] In this embodiment, the storage slot 15 is provided to store articles.

[0035] See also Figure 2 The auxiliary components shown in the figure include a cabinet door 1 21, a handle 1 22, a cabinet door 23 and a handle 24 arranged at the lower end of the fixed plate 13. The front of the fixed box 14 is provided with a cabinet door 1 21, the front of the cabinet door 1 21 is fixedly provided with a handle 1 22, the front of the cabinet door 1 21 is provided with a lock hole, the front of the fixed box 1 2 is provided with a cabinet door 23, and the front of the cabinet door 23 is fixedly provided with a handle 24.

[0036] In this embodiment: by setting up cabinet door 21, a new idea for placing items is provided to the user. At the same time, the setting of handle 22 makes it easy for the user to open cabinet door 21. At the same time, a lock hole is provided on the front of cabinet door 21, which makes it easy for the user to open or lock cabinet door 21. At the same time, the setting of handle 24 makes it easy for the user to open cabinet door 23.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0038] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum hot pressing furnace, comprising a bottom plate (1), characterized in that: A fixing box 2 (4) is fixedly arranged on the upper end surface of the bottom plate (1), a connecting pipe 1 (10) is provided on the right side wall of the fixing box 2 (4), the other end of the connecting pipe 1 (10) is fixedly connected to an air extraction valve (11), the right end surface of the air extraction valve (11) is fixedly connected to a connecting pipe 2 (12), a fixing groove (26) is provided on the top wall of the fixing box 2 (4), a sealing sleeve (18) is provided inside the fixing groove (26), and a supporting assembly is provided on the upper end of the bottom plate (1).

2. A vacuum hot pressing furnace according to claim 1, characterized in that: The support assembly comprises a fixed column (3) arranged at the upper end of a base plate (1), six fixed columns (3) are fixedly arranged on the upper end surface of the base plate (1), a fixed plate 1 (13) is fixedly arranged on the upper end surface of the fixed column (3), a cylinder (14) is fixedly installed on the upper end surface of the fixed plate 1 (13), and an operating assembly is arranged at the lower end of the cylinder (14).

3. A vacuum hot pressing furnace according to claim 2, characterized in that: The operating assembly comprises a connecting rod (16) and a fixing rod (19) arranged at the lower end of the cylinder (14); the connecting rod (16) is arranged at the lower end of the cylinder (14); the connecting rod (16) passes through a fixing plate (13); the output end of the cylinder (14) is fixedly connected to one end of the connecting rod (16); the fixing rod (19) is arranged at the lower end of the connecting rod (16); and a sealing assembly is arranged at the lower end of the connecting rod (16).

4. A vacuum hot pressing furnace according to claim 3, characterized in that: The sealing assembly comprises a sealing sleeve (18) arranged at the lower end of the connecting rod (16); a cover plate (17) is arranged at the lower end of the connecting rod (16); the cover plate (17) is fixedly arranged on the lower end surface of the connecting rod (16); the sealing sleeve (18) is fixedly arranged on the outer side of the cover plate (17); a fixing rod (19) is fixedly arranged on the lower end surface of the cover plate (17); an upper template (20) is fixedly arranged on the lower end surface of the fixing rod (19); a processing box (5) is arranged inside the fixing box 2 (4); and a heating assembly is arranged inside the processing box (5).

5. A vacuum hot pressing furnace according to claim 4, characterized in that: The heating assembly comprises a heating device (8) and a heat conducting plate (9) arranged inside a processing box (5); a support column (6) is fixedly arranged on the upper end of the inner bottom wall of the processing box (5); a lower template (7) is fixedly arranged on the upper end surface of the support column (6); a heating device (8) is fixedly arranged on the upper end surface of the lower template (7); a heat conducting plate (9) is fixedly arranged on the inner side wall of the heating device (8); and a storage assembly is arranged at the lower end of the bottom plate (1).

6. A vacuum hot pressing furnace according to claim 5, characterized in that: The storage assembly comprises a fixed box (2) arranged at the lower end of the bottom plate (1), an electric control box (25) is fixedly arranged on the internal top wall of the fixed box (2), a storage slot (15) is opened inside the fixed box (2), a storage slot (15) is arranged at the lower end of the electric control box (25), and an auxiliary assembly is arranged at the lower end of the fixed plate (13).

7. A vacuum hot pressing furnace according to claim 6, characterized in that: The auxiliary components include a cabinet door (21), a handle (22), a cabinet door (23) and a handle (24) arranged at the lower end of the fixed plate (13); the front of the fixed box (4) is provided with the cabinet door (21); the front of the cabinet door (21) is fixedly provided with the handle (22); the front of the cabinet door (21) is provided with a lock hole; the front of the fixed box (2) is provided with the cabinet door (23); the front of the cabinet door (23) is fixedly provided with the handle (24).

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