Furnace structure for artificial diamond crystal growth apparatus

Abstract

The application discloses a furnace body structure of a synthetic diamond crystal growth equipment, and belongs to the technical field of synthetic diamonds, which comprises a base plate, a top cover arranged on the upper side of the base plate, supporting columns fixedly arranged between the top cover and the base plate, an upper cover arranged between the top cover and the base plate, supporting slide rods fixedly arranged on the outer surface of the upper cover, the supporting slide rods being slidably connected with the supporting columns, and a motor fixedly arranged on the upper end surface of the base plate. The buckle mechanism is arranged, the furnace body is automatically opened, the fixing effect and the stability of the furnace body are enhanced under the action of the fixing assembly and the reinforcing piece, meanwhile, the elastic sealing pieces are additionally arranged on the key joint surfaces, the gaps are filled by pressure self-adapting deformation, the repeated calibration steps required by the traditional multilayer sealing are reduced, under the premise of maintaining high sealing performance, the opening and closing operation steps are reduced to single triggering action, the artificial operation complexity is reduced, and the equipment operation efficiency and the operation stability are simultaneously improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of artificial diamond, more particularly, to a furnace body structure of an artificial diamond crystal growth device. BACKGROUND

[0002] Artificial diamond is a polycrystalline diamond composed of diamond crystals with a diameter of 10 to 30 nanometers. The molecular structure of artificial diamond is not a complete octahedral structure like natural diamond, but a complex structure, which can produce phosphorescence. There are two methods to produce artificial diamond: high temperature and high pressure synthesis and chemical vapor deposition synthesis. High temperature and high pressure synthesis refers to the fact that temperature and pressure are still two key factors in crystal manufacturing. According to professional jewelers, this method is to manufacture diamonds in a ceramic container instead of underground. Water pressure provides high pressure, and electricity generates high temperature. Carbon is deposited around a 1mm diameter seed crystal made of natural diamond to form a crystal. Chemical vapor deposition synthesis refers to heating natural gas and nitrogen to form a carbon plasma in a pressure chamber the size of a dishwasher. The plasma continuously deposits on the carbon layer at the bottom of the pressure chamber and gradually accumulates and hardens to form a diamond sheet, which is then cut into a gem shape. Currently, chemical vapor deposition synthesis is commonly used to produce artificial diamonds.

[0003] The furnace body structure of the traditional diamond crystal growth device relies on a multi-layer sealing design, and complicated sealing steps need to be performed every time it is opened and closed, such as repeatedly calibrating the position of the sealing ring or adjusting the pressure balance. The operator needs to manually adjust the components multiple times, resulting in a long time for the device to start and stop. This complex operation process not only significantly prolongs the crystal growth cycle, but also increases the frequency of manual intervention, affecting the overall production efficiency. In addition, frequent sealing maintenance and precision requirements further exacerbate the inconvenience of use, making the operation process time-consuming and laborious. SUMMARY

[0004] In view of the problems in the prior art, the purpose of the present application is to provide a furnace body structure of an artificial diamond crystal growth device that can automatically open and close the furnace body.

[0005] To solve the above problems, the technical solution adopted by the present application is as follows.

[0006] A furnace structure of a synthetic diamond crystal growth device, comprising a base plate, the upper side of the base plate is provided with a top cover, the top cover and the base plate are fixedly installed with a support column, the top cover and the base plate are provided with an upper cover, the outer surface of the upper cover is fixedly installed with a support slide rod, the support slide rod is slidably connected with the support column, the upper end surface of the base plate is fixedly installed with a motor, the end of the motor output shaft is fixedly installed with a threaded rod, the upper end of the threaded rod is rotatably connected with the top cover, the outer surface of the upper cover is fixedly installed with a threaded slide rod, one end of the threaded slide rod is screw transmission connected with the threaded rod, the upper side of the base plate is provided with a buckle mechanism, the buckle mechanism comprises a fixed component provided on the upper side of the upper cover, the fixed component comprises a cross rod fixedly installed on the outer surface of the upper cover, the end of the cross rod is fixedly installed with a wedge block one, the upper end surface of the base plate is provided with a sliding groove one, the sliding groove one is slidably connected with a sliding block in the inside, the sliding block and the inner wall of the sliding groove one are fixedly installed with a spring, the upper end surface of the sliding block is fixedly installed with a wedge block two corresponding to the wedge block one, one end of the wedge block two is fixedly installed with a pressing rod.

[0007] The fixed component comprises a reinforcing member arranged in the pressing rod, the reinforcing member comprises a pressing ring fixedly installed on the lower side of the outer surface of the upper cover, the sliding block and the inner wall of the sliding groove one are fixedly installed with an air bag one.

[0008] The inside of the pressing rod is provided with a limiting cavity, the limiting cavity is slidably connected with a memory alloy in the inside, one end of the memory alloy is provided with an anti-skid pad, the limiting cavity and the air bag one are communicated with a communication pipe one.

[0009] The buckle mechanism comprises a reinforcing member arranged on the outer side of the fixed component, the reinforcing member comprises a support member arranged on the upper side of the sliding groove one, the support member is fixedly connected with the base plate, the upper end of the support member is rotatably connected with a transmission rod.

[0010] The both sides of the wedge block one are fixedly installed with a support shaft, the front end surface of the transmission rod is provided with a sliding groove two, the support shaft is slidably connected with the sliding groove two, the other end of the transmission rod is fixedly installed with a clamping plate.

[0011] The fixed component and the reinforcing member are all provided with three groups and are arranged in a ring shape.

[0012] The buckle mechanism further comprises a sealing member arranged in the inside of the base plate, the sealing member comprises a recess arranged on the lower end surface of the upper cover, the upper end surface of the base plate is provided with an insertion slot corresponding to the upper cover, the inside of the insertion slot is fixedly installed with a convex ring corresponding to the recess.

[0013] The top cover and the base plate are fixedly installed with a slide rail, the inside of the slide rail is slidably connected with an extrusion plate, one end of the extrusion plate is fixedly connected with the upper cover, the extrusion plate and the inside lower end surface of the slide rail are fixedly installed with an air bag two.

[0014] The inner wall of the two sides of the slot is fixedly installed with air bags three, and a transition cavity is arranged in communication between the two groups of air bags three.

[0015] The inner wall of the two sides of the slot is fixedly installed with air bags three, and a transition cavity is arranged in communication between the two groups of air bags three.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] (1) The buckle mechanism is provided to realize automatic opening of the furnace body, and the fixing effect and stability of the furnace body are enhanced under the action of the fixing assembly and the reinforcing part. Meanwhile, an elastic sealing element is additionally arranged at the key joint surface, which fills the gap through pressure self-adapting deformation, reduces the repeated calibration steps required by the traditional multi-layer sealing, and improves the structure to reduce the opening and closing operation steps to single trigger action under the premise of maintaining high sealing performance, thereby reducing the complexity of manual operation and simultaneously improving the equipment operation efficiency and running stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The present application is a schematic diagram of the overall structure;

[0019] Figure 2 The present application is a schematic diagram of the overall structure; Figure 1 The present application is a schematic diagram of the overall structure;

[0020] Figure 3 The present application is a schematic diagram of the overall structure;

[0021] Figure 4 The present application is a schematic diagram of the overall structure; Figure 3 The present application is a schematic diagram of the overall structure;

[0022] Figure 5 The present application is a schematic diagram of the overall structure; Figure 3 The present application is a schematic diagram of the overall structure.

[0023] Explanation of figure numbers:

[0024] 1, base plate; 2, top cover; 3, support column; 4, upper cover; 5, support sliding rod; 6, motor; 7, threaded rod; 8, threaded sliding rod; 9, cross bar; 10, wedge block one; 11, sliding groove one; 12, sliding block; 13, spring; 14, wedge block two; 15, pressing rod; 16, pressing ring; 17, air bag one; 18, limiting cavity; 19, communication pipe one; 20, memory alloy; 21, support piece; 22, support shaft; 23, transmission rod; 24, sliding groove two; 25, clamping plate; 26, sliding rail; 27, extrusion plate; 28, air bag two; 29, groove; 30, protruding ring; 31, slot; 32, transition cavity; 33, air bag three; 34, communication pipe two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative effort based on the embodiments in the present application shall fall within the protection scope of the present application.

[0026] Please refer to Figures 1 to 5 A furnace body structure of a synthetic diamond crystal growth device, including a base plate 1, the upper side of the base plate 1 is provided with a top cover 2, the top cover 2 and the base plate 1 are fixedly installed with support columns 3, the top cover 2 and the base plate 1 are provided with upper covers 4, the outer surface of the upper cover 4 is fixedly installed with support sliding rods 5, the support sliding rods 5 are slidingly connected with the support columns 3, the upper end surface of the base plate 1 is fixedly installed with motors 6, the end of the output shaft of the motor 6 is fixedly installed with threaded rods 7, the upper end of the threaded rod 7 is rotatably connected with the top cover 2, the outer surface of the upper cover 4 is fixedly installed with threaded sliding rods 8, one end of the threaded sliding rod 8 is screw transmission connected with the threaded rod 7, the upper side of the base plate 1 is provided with a buckle mechanism, the buckle mechanism includes a fixed assembly arranged on the upper side of the upper cover 4, the fixed assembly includes a cross rod 9 fixedly installed on the outer surface of the upper cover 4, the end of the cross rod 9 is fixedly installed with a wedge block one 10, the upper end surface of the base plate 1 is provided with a sliding groove one 11, the inside of the sliding groove one 11 is slidingly connected with a sliding block 12, the sliding block 12 and the inner wall of the sliding groove one 11 are fixedly installed with springs 13, the upper end surface of the sliding block 12 is fixedly installed with a wedge block two 14 corresponding to the wedge block one 10, one end of the wedge block two 14 is fixedly installed with a pressing rod 15.

[0027] When the top cover 2 needs to be closed, the motor 6 is started to make the threaded rod 7 rotate, the threaded rod 7 is screw transmission connected with the threaded sliding rod 8 fixedly installed on the outer surface of the upper cover 4, so that the threaded sliding rod 8 will carry the upper cover 4 down, and the lower edge of the upper cover 4 is embedded in the slot 31, so that the convex ring 30 is inserted into the groove 29, and the cross rod 9 will carry the wedge block one 10 down while the upper cover 4 is descending, the wedge block one 10 will collide and slide with the wedge block two 14 on the sliding block 12, and drive the sliding block 12 to slide inwards in the sliding groove one 11, and drive the pressing rod 15 to displace inwards and abut against the upper cover 4, and the three groups of pressing rods 15 abut against the upper cover 4 synchronously and are fixed.

[0028] The fixed assembly includes a reinforcing piece arranged in the pressing rod 15, the reinforcing piece includes a pressing ring 16 fixedly installed on the outer surface of the upper cover 4, the sliding block 12 and the inner wall of the sliding groove one 11 are fixedly installed with air bags one 17.

[0029] The inside of the pressure bar 15 is provided with a limiting cavity 18, and a memory alloy 20 is slidably connected in the limiting cavity 18. The memory alloy 20 is provided with an anti-skid pad at one end. A communication pipe 19 is arranged between the limiting cavity 18 and the air bag 17.

[0030] When the sliding block 12 moves in the sliding groove 11, the air bag 17 is pressed, and the gas in the air bag 17 enters the limiting cavity 18 through the communication pipe 19. The memory alloy 20 in the limiting cavity 18 extends, and the lower end of the memory alloy 20 presses the pressing ring 16, thereby providing vertical downward pressure and improving the fixing effect of the upper cover 4.

[0031] The buckle mechanism comprises reinforcing members arranged outside the fixing assembly. The reinforcing members comprise support members 21 arranged on the upper side of the sliding groove 11. The support members 21 are fixedly connected to the bottom disc 1. The upper end of the support member 21 is rotatably connected to a transmission rod 23.

[0032] The two sides of the wedge block 10 are fixedly provided with support shafts 22. The front end surface of the transmission rod 23 is provided with a sliding groove 24. The support shafts 22 are slidably connected to the sliding groove 24. The other end of the transmission rod 23 is fixedly provided with a clamping plate 25.

[0033] The fixing assembly and the reinforcing members are provided with three groups and are arranged in a ring shape.

[0034] The support shafts 22 on the wedge block 10 synchronously descend with the upper cover 4. The support shafts 22 are slidably connected to the sliding groove 24 on the transmission rod 23. When the support shafts 22 slide downward, the transmission rod 23 is deflected upward relative to the upper cover 4. The clamping plate 25 at the upper end of the transmission rod 23 is tightly attached to the upper cover 4. Similarly, the three groups of clamping plates 25 are synchronously tightly attached to the upper cover 4, thereby improving the fixing effect of the upper cover 4.

[0035] The buckle mechanism further comprises a sealing member arranged in the bottom disc 1. The sealing member comprises a recess 29 arranged on the lower end surface of the upper cover 4. The upper end surface of the bottom disc 1 is provided with an insertion slot 31 corresponding to the upper cover 4. The insertion slot 31 is fixedly provided with a convex ring 30 corresponding to the recess 29.

[0036] The top cover 2 and the bottom disc 1 are fixedly provided with a sliding rail 26. The sliding rail 26 is slidably connected to a pressing plate 27. One end of the pressing plate 27 is fixedly connected to the upper cover 4. The pressing plate 27 and the lower end surface of the sliding rail 26 are fixedly provided with an air bag 28.

[0037] The two inner walls of the insertion slot 31 are fixedly provided with air bags 33. Two groups of air bags 33 are connected by a transition cavity 32. The transition cavity 32 and the air bag 28 are connected by a communication pipe 34.

[0038] When the upper cover 4 is lowered, the extrusion plate 27 is lowered, and the extrusion plate 27 is lowered in the inner part of the slide rail 26 and extrudes the air bag two 28, so that the gas in the air bag two 28 enters the two groups of air bag three 33 through the communication pipe two 34 and the transition cavity 32 respectively, and the two groups of air bag three 33 are inflated, the gap between the upper cover 4 and the chassis 1 is filled, and the sealing property of the equipment is improved.

[0039] The convex ring 30 and the inner part of the groove 29 are fixedly installed with sealing rubber strips, and the inner wall of the clamping plate 25 is fixedly installed with anti-skid pads.

[0040] The furnace body structure of the traditional diamond crystal growth equipment depends on multi-layer sealing design, and complicated sealing steps need to be performed every time it is opened and closed, such as repeatedly calibrating the position of the sealing ring or adjusting the pressure balance. The operator needs to manually adjust the components multiple times, which results in a long time for starting and stopping the equipment. This complex operation process not only significantly prolongs the crystal growth cycle, but also increases the frequency of manual intervention, affecting the overall production efficiency. In addition, frequent sealing maintenance and precision requirements further exacerbate the inconvenience of use, making the operation process time-consuming and laborious. Therefore, the buckle mechanism is arranged to realize automatic opening of the furnace body, and the fixing effect and stability of the furnace body are strengthened under the action of the fixed component and the reinforcing part. At the same time, elastic sealing elements are added to the key joint surfaces, which can adaptively deform by pressure to fill the gap, reducing the repeated calibration steps required by traditional multi-layer sealing. The improved structure reduces the opening and closing operation steps to a single trigger action under the premise of maintaining high sealing property, reduces the complexity of manual operation, and simultaneously improves the operation efficiency and running stability of the equipment.

[0041] Method for use: when the top cover 2 needs to be closed, the motor 6 is started to rotate the threaded rod 7, the threaded rod 7 is screw transmission connected with the threaded slide rod 8 fixedly installed on the outer surface of the upper cover 4, so that the threaded slide rod 8 carries the upper cover 4 down, and the lower edge of the upper cover 4 is embedded into the slot 31, so that the convex ring 30 is inserted into the inner part of the groove 29. When the upper cover 4 is lowered, the wedge block one 10 will be carried downward by the cross bar 9, and the wedge block one 10 will collide and slide with the wedge block two 14 on the sliding block 12, and will drive the sliding block 12 to slide inward in the inner part of the sliding groove one 11, and will drive the pressure rod 15 to displace inward and abut against the upper cover 4. Three groups of pressure rods 15 abut against the upper cover 4 at the same time to fix it.

[0042] Secondly, when the sliding block 12 displaces in the inner part of the sliding groove one 11, the air bag one 17 is extruded, so that the gas in the air bag one 17 enters the inner part of the limiting cavity 18 through the communication pipe one 19, and the memory alloy 20 in the limiting cavity 18 extends, so that the lower end of the memory alloy 20 abuts against the pressure ring 16 under pressure, thereby improving the fixing effect of the upper cover 4.

[0043] And the wedge piece 10 on the support shaft 22 synchronous follow-up cover 4 drop, support shaft 22 and transmission rod 23 on the sliding groove two 24 sliding connection, when the support shaft 22 down, then will make transmission rod 23 around the support 21 to the cover 4 deflection, in turn make transmission rod 23 upper end of the clamping plate 25 and cover 4 close, the same three sets of clamping plate 25 synchronous with cover 4 close, improve the fixed effect of cover 4;

[0044] The upper cover 4 down carrying extrusion plate 27 down, extrusion plate 27 will be in the inside of the slide rail 26 and extrusion air bag two 28, make air bag two 28 inside gas through the communication pipe two 34 and transition cavity 32 respectively into two groups of air bag three 33, two groups of air bag three 33 inflation, will fill the gap between the cover 4 and chassis 1, improve the sealing of the equipment.

[0045] The above, only for the preferred specific embodiments of the present application; but the scope of protection of the present application is not limited to this. Any skilled in the art of the technical personnel in the technical range of the present application, according to the technical scheme of the present application and its improvement concept to equivalent replacement or change, should be covered in the scope of protection of the present application.

Claims

1. A furnace structure for an artificial diamond crystal growth apparatus, comprising a chassis (1), a top cover (2) provided on the upper side of the chassis (1), and a support column (3) fixedly installed between the top cover (2) and the chassis (1), characterized in that: An upper cover (4) is provided between the top cover (2) and the chassis (1). A support slide rod (5) is fixedly installed on the outer surface of the upper cover (4). The support slide rod (5) is slidably connected to the support column (3). A motor (6) is fixedly installed on the upper end face of the chassis (1). A threaded rod (7) is fixedly installed at the end of the output shaft of the motor (6). The upper end of the threaded rod (7) is rotatably connected to the top cover (2). A threaded slide rod (8) is fixedly installed on the outer surface of the upper cover (4). One end of the threaded slide rod (8) is helically connected to the threaded rod (7). A buckling mechanism is provided on the upper side of the chassis (1). The buckling mechanism includes a fixing assembly on the upper side of the upper cover (4). The fixing assembly includes a crossbar (9) fixedly installed on the outer surface of the top cover (4), a wedge block (10) fixedly installed at the end of the crossbar (9), a groove (11) opened on the upper end face of the chassis (1), a slider (12) slidably connected inside the groove (11), a spring (13) fixedly installed between the slider (12) and the inner wall of the groove (11), a wedge block (14) fixedly installed on the upper end face of the slider (12) corresponding to the wedge block (10), a pressure rod (15) fixedly installed at one end of the wedge block (14), and the fixing assembly also includes a reinforcing member disposed inside the pressure rod (15), the reinforcing member including the top cover (4). A pressure ring (16) is fixedly installed on the lower side of the outer surface. An airbag (17) is fixedly installed between the slider (12) and the inner wall of the groove (11). A limiting cavity (18) is opened inside the pressure rod (15). A shape memory alloy (20) is slidably connected inside the limiting cavity (18). An anti-slip pad is provided at one end of the shape memory alloy (20). A connecting pipe (19) is provided between the limiting cavity (18) and the airbag (17). The buckling mechanism also includes a sealing element provided inside the chassis (1). The sealing element includes a groove (29) opened on the lower end face of the upper cover (4). A slot (31) is opened on the upper end face of the chassis (1) corresponding to the upper cover (4). A protruding ring (30) is fixedly installed in the groove (29) inside the slot (31). A slide rail (26) is fixedly installed between the top cover (2) and the chassis (1). An extrusion plate (27) is slidably connected inside the slide rail (26). One end of the extrusion plate (27) is fixedly connected to the top cover (4). An airbag (28) is fixedly installed between the extrusion plate (27) and the lower end face of the slide rail (26). An airbag (33) is fixedly installed on both sides of the inner wall of the slot (31). A transition cavity (32) is provided between the two sets of airbags (33). A connecting pipe (34) is provided between the transition cavity (32) and the airbag (28).

2. The furnace structure of a synthetic diamond crystal growth apparatus according to claim 1, characterized in that: The buckling mechanism includes a reinforcing member disposed on the outside of the fixed component. The reinforcing member includes a support member (21) disposed on the upper side of the slide groove (11). The support member (21) is fixedly connected to the chassis (1). A transmission rod (23) is rotatably connected to the upper end of the support member (21).

3. The furnace structure of a synthetic diamond crystal growth apparatus according to claim 2, characterized in that: Both sides of the wedge (10) are fixedly installed with support shafts (22), the front end face of the transmission rod (23) is provided with a sliding groove (24), the support shaft (22) is slidably connected to the sliding groove (24), and the other end of the transmission rod (23) is fixedly installed with a clamping plate (25).

4. The furnace structure of a synthetic diamond crystal growth apparatus according to claim 3, characterized in that: The fixing components and reinforcement components are each provided in three groups, arranged in a ring-shaped distributed manner.

5. The furnace structure of a synthetic diamond crystal growth apparatus according to claim 4, characterized in that: Both the convex ring (30) and the groove (29) are fixedly installed with sealing strips, and the inner wall of the clamp (25) is fixedly installed with anti-slip pads.

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