Large-size diamond single crystal growth device and method

Abstract

The present invention discloses a large-scale diamond single crystal growth device and method, which relates to the diamond-related technical field. In the present invention, an arc-shaped guide frame is fixed at one end of the horizontal conveying platform, and an arc-shaped external tooth seat coaxial with the arc-shaped guide frame is installed on one side of the arc-shaped guide frame. A discharge port connected to the inner cavity of the arc-shaped guide frame is provided at the bottom of the arc-shaped guide frame. A linear array of graphite placement mechanisms is arranged on the horizontal conveying platform. The graphite placement mechanism includes a synchronously rotating heat dissipation impeller and a traveling gear. The heating growth mechanism is fixedly installed above the horizontal conveying platform. The heating growth mechanism includes a heating growth box that fits with the corresponding graphite placement mechanism. In the present invention, after the linkage shaft on the frontmost graphite placement mechanism is separated from the semicircular blocking portion, the linkage shaft on the next graphite placement mechanism enters between the two semicircular blocking portions, and the air inlet is sealed by the upper and lower semicircular blocking portions, thereby effectively reducing the internal temperature loss while ensuring continuous operation, thereby improving the working efficiency of single crystal growth.

Description

Technical Field

[0001] The present invention belongs to the technical field related to diamonds, and in particular relates to a large-size diamond single crystal growth device and method. Background Art

[0002] Diamond is a mineral composed of carbon, which is an allotrope with graphite. Diamond is the hardest substance naturally existing in nature. Graphite can be prepared into artificial diamond under high temperature and high pressure environment. Diamond is widely used in various fields. The process of preparing diamond from graphite requires the use of single crystal growth equipment.

[0003] In the prior art, when diamond single crystal growth equipment is in use, graphite is generally fixed directly inside the equipment box. The graphite grows into diamond under the high temperature and high pressure environment generated inside the equipment box. After the single crystal growth is completed, it is cooled and then taken out and new graphite is placed.

[0004] However, during the graphite single crystal growth process, opening the equipment housing can easily cause a significant loss of temperature inside the housing, hindering continuous operation. Furthermore, after the single crystal is grown, it must be cooled before it can be removed and replaced with new graphite, further reducing single crystal growth efficiency. To address this issue, we have developed a large-scale diamond single crystal growth apparatus and method to address these issues. Summary of the Invention

[0005] The purpose of the present invention is to provide a large-size diamond single crystal growth device and method, which solves the problems in the above-mentioned background technology through the specific structural design of the carrying and conveying mechanism, graphite placement mechanism, heating and growing mechanism and push control mechanism.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a large-scale diamond single crystal growth device, comprising a carrying and conveying mechanism, the carrying and conveying mechanism comprising a horizontal conveying platform, one end of the horizontal conveying platform is fixedly provided with an arc-shaped guide frame, the arc-shaped guide frame is arranged tangentially to the horizontal conveying platform, one side of the arc-shaped guide frame is installed with an arc-shaped external tooth seat coaxial with the arc-shaped guide frame, and the bottom of the arc-shaped guide frame is provided with a discharge port connected to the inner cavity thereof; a graphite placement mechanism, the linear array of the graphite placement mechanism is arranged on the horizontal conveying platform, and the graphite placement mechanism and the horizontal conveying platform are slidably matched, and the graphite placement mechanism includes It includes a heat dissipation impeller and a traveling gear that rotate synchronously. When the graphite placement mechanism moves to the inside of the arc-shaped guide frame after completing heating and growth, the graphite placement mechanism moves downward along the arc-shaped guide frame, so that the traveling gear rotates along the arc-shaped outer tooth seat, and the heat dissipation impeller that rotates synchronously with the traveling gear realizes graphite cooling; and a heating and growing mechanism, which is fixedly installed above the horizontal conveying platform. The heating and growing mechanism includes a heating and growing box that is fitted with the corresponding graphite placement mechanism, and a rectangular through hole for connecting to the corresponding graphite placement mechanism is opened at the center position of one side of the heating and growing box.

[0008] The present invention is further configured such that the arc-shaped external tooth seat and the arc-shaped guide frame are fixedly connected by an axial rod, and an arc-shaped guide plate coaxial with the arc-shaped external tooth seat is provided on the side of the arc-shaped guide frame close to the arc-shaped external tooth seat, and the arc-shaped guide plate and the arc-shaped guide frame are fixedly connected by an axial rod, and a horizontal guide plate fixedly connected to the arc-shaped guide plate is provided above the horizontal conveying platform, a first arc-shaped channel is provided on the surface of the arc-shaped guide plate, and a horizontal channel connected to the first arc-shaped channel is provided on the surface of the horizontal guide plate.

[0009] The present invention is further configured as follows: a horizontal guide groove is provided on the top of the horizontal conveying platform, a horizontal limiting channel connected to the horizontal guide groove is provided at the bottom of the horizontal conveying platform, a first arc guide groove and a second arc guide groove are respectively provided in the inner cavity of the arc guide frame, the first arc guide groove is connected to the horizontal guide groove, and the second arc guide groove is connected to the discharge port; an arc limiting channel connected to the first arc guide groove is provided on the inner wall of the arc guide frame, and a second arc channel connected to its inner cavity is provided on the side of the arc guide frame close to the arc external gear seat, and the first arc channel is connected to the discharge port through an axis through-hole.

[0010] The present invention is further configured such that a horizontal conveying part is slidingly arranged inside the horizontal limiting channel, the horizontal conveying part is slidingly sleeved on the horizontal guide plate, a conveying control motor is fixedly installed on the side of the horizontal conveying platform away from the arc-shaped guide frame, and the output end of the conveying control motor is connected to a conveying control shaft that is threadedly engaged with the horizontal conveying part.

[0011] The present invention is further configured as follows: the graphite placement mechanism also includes a graphite placement box, a graphite fixing portion is fixedly provided at the bottom of the graphite placement box, a first guide ball is fixedly provided on the top of the graphite placement box, a second guide ball is fixedly provided at the bottom of the graphite placement box that slides and fits inside the horizontal guide groove, and a force-bearing toggle portion is fixedly provided at the bottom of the second guide ball that slides and fits in the horizontal limit channel; a heat dissipation ventilation tube connected to its interior is fixedly provided on the graphite placement box, the heat dissipation ventilation tube slides and fits inside the horizontal channel, a linkage shaft is rotatably provided inside the heat dissipation ventilation tube, and one end of the linkage shaft extends to the outside of the heat dissipation ventilation tube and is fixed on the traveling gear, the heat dissipation impeller is located inside the heat dissipation ventilation tube and is fixedly connected to the linkage shaft, a plurality of air inlets are provided at the end of the heat dissipation ventilation tube close to the traveling gear, and an air outlet mesh is provided on one side of the graphite placement box.

[0012] The present invention is further configured such that a first mounting frame is fixedly provided on a side of the heating growth box away from the rectangular opening, a first limiting frame is fixedly provided on a side of the heating growth box close to the rectangular opening, a second mounting frame is fixedly provided on the top of the first limiting frame, and a second limiting frame is fixedly provided inside the second mounting frame; two lifting parts are symmetrically provided on the upper and lower sides of the inner side of the second mounting frame, the first limiting frame and the second limiting frame are both slidably matched with the corresponding lifting parts, a semicircular sealing part is fixedly provided on the end of the lifting part, and a support plate fixedly provided on the surface of the lifting part is connected to the second mounting frame by a first elastic member.

[0013] The present invention is further configured as follows: the present invention also includes a sliding control mechanism and a supporting frame, the first mounting frame is installed on the supporting frame by fasteners, a horizontal support frame is fixedly provided on the supporting frame, and the horizontal conveying platform is fixedly installed on the top of the horizontal support frame; the sliding control mechanism includes a mounting seat fixedly provided on the top of the horizontal support frame, the output end of the telescopic cylinder installed on the mounting seat is connected to a moving seat slidingly provided on the top of the horizontal support frame, a lifting control screw is rotatably provided on the top of the moving seat, a lifting control gear is fixedly provided on the peripheral side of the lifting control screw, and the horizontal sliding part slidingly sleeved on the conveying control shaft is threadedly matched with the lifting control screw.

[0014] The present invention is further configured such that an engaging portion that engages with the lifting control gear is slidingly provided on the top of the movable seat, a support rod is fixedly provided on a mounting plate fixed on the top of the movable seat, a magnetic plate is fixedly provided at one end of the support rod, the engaging portion is slidably sleeved on the support rod, the mounting plate and the engaging portion are connected by a second elastic member, and the electromagnet installed on the magnetic plate and the permanent magnet on the engaging portion magnetically repel each other.

[0015] The present invention has the following beneficial effects:

[0016] 1. In the present invention, when the linkage shaft on the frontmost graphite placement mechanism enters the second notch and squeezes the upper and lower semicircular blocking parts, the upper and lower first elastic members are subjected to force compression until the linkage shaft on the frontmost graphite placement mechanism completely separates from the semicircular blocking part. At this time, the upper and lower semicircular blocking parts are tightly attached together again with the help of the elastic restoring force of the first elastic member, and the linkage shaft on the next graphite placement mechanism enters the first notch and squeezes the upper and lower semicircular blocking parts, so that the upper and lower first elastic members are subjected to force compression until the linkage shaft on the next graphite placement mechanism just enters between the two semicircular blocking parts. The upper and lower semicircular blocking parts are tightly attached together again with the help of the elastic restoring force of the first elastic member. At this time, a circular blocking plate is formed by the upper and lower semicircular blocking parts to achieve complete sealing of the air inlet at the end of the heat dissipation flow tube, thereby effectively reducing internal temperature loss while ensuring continuous operation, thereby improving the working efficiency of single crystal growth.

[0017] 2. In the present invention, after the graphite placement mechanism has completed heating and growth, it moves to the inside of the arc-shaped guide frame. The graphite placement mechanism uses its own gravity to make it move downward along the arc-shaped guide frame. During this process, the walking gear continues to move along the surface of the arc-shaped outer tooth seat. During the movement of the walking gear, the heat dissipation impeller is driven to rotate continuously. The airflow generated by the rotation of the heat dissipation impeller continuously enters the interior of the graphite placement box and is then discharged from the air outlet mesh. The continuous rotation of the heat dissipation impeller can accelerate the air flow inside the graphite placement box, thereby greatly improving the cooling effect of the graphite after single crystal growth.

[0018] 3. When the present invention pushes the next graphite placement mechanism to the position of the heating growth box, the horizontal pushing part is between the force-receiving and toggling part on the frontmost graphite placement mechanism and the force-receiving and toggling part on the next graphite placement mechanism. At this time, the electromagnet on the control magnetic plate is energized to generate a magnetic repulsive force on the meshing part. The moving meshing part drives the lifting control gear to rotate, and the second elastic member is compressed by the force. The lifting control screw that rotates synchronously with the lifting control gear drives the horizontal pushing part to move upward until it is in contact with the bottom of the horizontal conveying platform. Then, the graphite placement mechanism after the heating and growth is pushed into the interior of the arc-shaped guide frame through the forward movement of the telescopic cylinder. Then, the electromagnet on the control magnetic plate is powered off and demagnetized. With the help of the elastic restoring force of the second elastic member, the meshing part moves in the opposite direction and resets. In this process, the lifting control gear is driven to rotate in the opposite direction by the meshing part, and the horizontal pushing part is driven to move downward and reset under the action of the lifting control screw. Finally, the moving seat can be driven in the opposite direction and reset through the retraction movement of the telescopic cylinder.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a large-scale diamond single crystal growth device.

[0022] Figure 2 for Figure 1 side view of the structure.

[0023] Figure 3 It is a structural schematic diagram of the load-bearing and conveying mechanism in the present invention.

[0024] Figure 4 for Figure 3 side view of the structure.

[0025] Figure 5 for Figure 3 A longitudinal structural cross-sectional view.

[0026] Figure 6 It is a structural schematic diagram of the graphite placement mechanism in the present invention.

[0027] Figure 7 for Figure 6 side view of the structure.

[0028] Figure 8 for Figure 6 Schematic diagram of the structure from another angle.

[0029] Figure 9 It is a structural schematic diagram of the heating growth mechanism in the present invention.

[0030] Figure 10 for Figure 9 side view of the structure.

[0031] Figure 11 for Figure 9 Schematic diagram of the structure from another angle.

[0032] Figure 12 for Figure 11 A magnified view of the local structure at point A.

[0033] Figure 13 It is a structural schematic diagram of the push control mechanism in the present invention.

[0034] Figure 14 for Figure 13 The structural front view.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1-carrying conveying mechanism, 101-horizontal conveying platform, 102-arc guide frame, 103-arc outer gear seat, 104-discharge port, 105-arc guide plate, 106-horizontal guide plate, 107-first arc channel, 108-horizontal channel, 109-horizontal guide groove, 110-horizontal limit channel, 111-first arc guide groove, 112-second arc guide groove, 113-arc limit channel, 114-second arc channel, 115-shaft opening, 116-horizontal conveying part, 117-conveying control motor, 118-conveying control shaft, 2-graphite placement mechanism, 201-heat dissipation impeller, 202-travel gear, 203-graphite placement box, 204-graphite fixing part, 205-first guide ball, 206-second guide ball, 207-force toggle part, 208- Heat dissipation flow tube, 209- linkage shaft, 210- air inlet, 211- air outlet mesh, 3- heating growth mechanism, 301- heating growth box, 302- rectangular opening, 303- first mounting frame, 304- first limiting frame, 305- second mounting frame, 306- second limiting frame, 307- lifting part, 308- semicircular blocking part, 309- support plate, 310- first elastic member, 311- first notch, 312- second notch, 4- sliding control mechanism, 401- mounting seat, 402- telescopic cylinder, 403- moving seat, 404- lifting control screw, 405- lifting control gear, 406- horizontal sliding part, 407- meshing part, 408- mounting plate, 409- support rod, 410- magnetic plate, 411- second elastic member, 5- bearing frame, 6- horizontal support frame. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] For specific embodiment 1, please refer to Figure 1-14The present invention is a large-scale diamond single crystal growth device, comprising a carrying and conveying mechanism 1, a graphite placement mechanism 2 and a heating and growing mechanism 3; the carrying and conveying mechanism 1 comprises a horizontal conveying platform 101, one end of which is fixedly provided with an arc-shaped guide frame 102, the arc-shaped guide frame 102 is arranged tangentially to the horizontal conveying platform 101, one side of the arc-shaped guide frame 102 is provided with an arc-shaped external tooth seat 103 coaxial with the arc-shaped guide frame 103, and the bottom of the arc-shaped guide frame 102 is provided with a discharge port 104 connected to its inner cavity; the graphite placement mechanism 2 is linearly arranged on the horizontal conveying platform 101, and the graphite placement mechanism 2 and the horizontal conveying platform 101 are slidably matched, and the graphite placement mechanism 2 includes a synchronously rotating heat dissipation impeller 201 and the traveling gear 202. When the graphite placement mechanism 2 moves to the inside of the arc-shaped guide frame 102 after completing the heating and growth, the graphite placement mechanism 2 moves downward along the arc-shaped guide frame 102, so that the traveling gear 202 rotates along the arc-shaped outer tooth seat 103, and the heat dissipation impeller 201 that rotates synchronously with the traveling gear 202 realizes the cooling of the graphite; the heating and growing mechanism 3 is fixedly installed above the horizontal conveying platform 101, and the heating and growing mechanism 3 includes a heating and growing box 301 that is fitted with the corresponding graphite placement mechanism 2 (on which a boost pipe and a pressure relief pipe are installed, and a control valve is installed on the pressure relief pipe), and a rectangular opening 302 for connecting to the corresponding graphite placement mechanism 2 is opened at the center position of one side of the heating and growing box 301.

[0039] In this embodiment of the present invention, the arc-shaped external tooth seat 103 is fixedly connected to the arc-shaped guide frame 102 by an axial rod. A coaxial arc-shaped guide plate 105 is provided on the side of the arc-shaped external tooth seat 103 of the arc-shaped guide frame 102. The arc-shaped guide plate 105 and the arc-shaped guide frame 102 are fixedly connected by an axial rod. A horizontal guide plate 106 fixedly connected to the arc-shaped guide plate 105 is provided above the horizontal conveying platform 101. A first arc-shaped channel 107 is provided on the surface of the arc-shaped guide plate 105, and a horizontal channel 108 connected to the first arc-shaped channel 107 is provided on the surface of the horizontal guide plate 106.

[0040] A horizontal guide groove 109 is provided on the top of the horizontal conveying platform 101, and a horizontal limit channel 110 connected to the horizontal guide groove 109 is provided at the bottom of the horizontal conveying platform 101. A first arc guide groove 111 and a second arc guide groove 112 are respectively provided in the inner cavity of the arc guide frame 102. The first arc guide groove 111 is connected to the horizontal guide groove 109, and the second arc guide groove 112 is connected to the discharge port 104. An arc guide groove 111 is provided on the inner wall of the arc guide frame 102 and is connected to the first arc guide groove 111. shaped limiting channel 113, a second arc channel 114 connected to its inner cavity is opened on one side of the arc guide frame 102 close to the arc outer tooth seat 103, and the first arc channel 107 is connected to the discharge port 104 through the shaft opening 115. When the graphite placing mechanism 2 after completing the heating and growth moves to the inside of the arc guide frame 102 and slides downward to the position of the discharge port 104, the graphite placing mechanism 2 after completing the heating and growth can fall from the discharge port 104 to the outside of the arc guide frame 102 to complete the collection.

[0041] In this embodiment of the present invention, a horizontal conveying portion 116 is slidingly provided inside the horizontal limiting channel 110, and the horizontal conveying portion 116 is slidably sleeved on the horizontal guide plate 106. A conveying control motor 117 is fixedly installed on the side of the horizontal conveying platform 101 away from the arc-shaped guide frame 102, and the output end of the conveying control motor 117 is connected to a conveying control shaft 118 that is threadedly engaged with the horizontal conveying portion 116; after starting the conveying control motor 117, the rotation of the conveying control shaft 118 is used to drive the horizontal conveying portion 116 to slide forward along the horizontal limiting channel 110, and then the horizontal conveying portion 116 is used to push several graphite placement mechanisms 2 on the horizontal conveying platform 101 to move synchronously. It should be noted that every time the conveying control motor 117 operates, the frontmost graphite placement mechanism 2 can be pushed to the position of the heating growth box 301 through the horizontal conveying portion 116.

[0042] In this embodiment of the present invention, the graphite placement mechanism 2 also includes a graphite placement box 203, a graphite fixing portion 204 is fixedly provided at the bottom of the graphite placement box 203 (graphite is confined in the graphite fixing portion 204 under high temperature and high pressure environment), a first guide ball 205 is fixedly provided at the top of the graphite placement box 203, a second guide ball 206 is fixedly provided at the bottom of the graphite placement box 203, and a force-bearing toggle portion 207 is fixedly provided at the bottom of the second guide ball 206 and is slidably fitted in the horizontal guide groove 109;

[0043] The graphite placement box 203 is fixedly provided with a heat dissipation flow pipe 208 connected with the interior thereof, and the heat dissipation flow pipe 208 is slidably fitted in the horizontal channel 108. Since the force-bearing toggle portion 207 is slidably fitted in the horizontal limit channel 110, the heat dissipation flow pipe 208 is slidably fitted in the horizontal channel 108. In the process of pushing the graphite placement mechanism 2 through the horizontal conveying portion 116, the self-rotation of the graphite placement mechanism 2 during the horizontal sliding process can be effectively avoided. A linkage shaft 209 is provided for rotation inside the heat dissipation flow pipe 208 (in the process of the graphite placement mechanism 2 falling from the discharge port 104 after completing the heating and growth, the linkage shaft 209 on the graphite placement mechanism 2 falls along the shaft body opening 115). The linkage shaft 209 extends to one end of the outside of the heat dissipation flow pipe 208 and is fixed on the traveling gear 202. The heat dissipation impeller 201 is located inside the heat dissipation flow pipe 208 and is fixedly connected to the linkage shaft 209. 08 A plurality of air inlets 210 are provided near the end of the traveling gear 202, and an air outlet mesh 211 is provided on one side of the graphite placement box 203; after the graphite placement mechanism 2 is moved to the inside of the arc-shaped guide frame 102 after completing heating and growth, the graphite placement mechanism 2 is moved downward along the arc-shaped guide frame 102 by utilizing its own gravity (moving in a circular direction from top to bottom). In this process, the traveling gear 202 is continuously moved along the surface of the arc-shaped outer tooth seat 103 (that is, the traveling gear 202 rotates while moving along the surface of the arc-shaped outer tooth seat 103). During the movement of the traveling gear 202, the heat dissipation impeller 201 is driven to rotate continuously, and the air flow generated by the rotation of the heat dissipation impeller 201 continuously enters the inside of the graphite placement box 203 and is then discharged through the air outlet mesh 211. The continuous rotation of the heat dissipation impeller 201 can accelerate the air flow inside the graphite placement box 203, thereby greatly improving the cooling effect of the graphite after single crystal growth.

[0044] In this embodiment of the present invention, a first mounting frame 303 is fixedly provided on the side of the heating growth box 301 away from the rectangular opening 302, a first limiting frame 304 is fixedly provided on the side of the heating growth box 301 close to the rectangular opening 302, a second mounting frame 305 is fixedly provided on the top of the first limiting frame 304, and a second limiting frame 306 is fixedly provided inside the second mounting frame 305; two lifting parts 307 are symmetrically provided on the inner side of the second mounting frame 305, and the first limiting frame 304 and the second limiting frame 306 are both fixed to the first limiting frame 304 and the second limiting frame 306. The corresponding lifting parts 307 are slidably matched, and a semicircular sealing part 308 is fixedly provided on the end of the lifting part 307. The support plate 309 fixedly provided on the surface of the lifting part 307 is connected to the second mounting frame 305 through the first elastic member 310. Under the strong elastic force of the upper and lower first elastic members 310, the two semicircular sealing parts 308 are tightly pressed together. At this time, the upper and lower semicircular sealing parts 308 form a circular sealing plate to achieve complete sealing of the air inlet 210 at the end of the heat dissipation flow tube 208.

[0045] After the heating growth of the graphite inside the graphite placement mechanism 2 on the front side is completed, the conveying control motor 117 is controlled to run once, and the next graphite placement mechanism 2 is pushed to the position of the heating growth box 301 through the horizontal conveying part 116. During this process, the linkage shaft 209 on the graphite placement mechanism 2 on the front side enters the second notch 312 and squeezes the upper and lower semicircular blocking parts 308, so that the upper and lower first elastic members 310 are compressed until the linkage shaft 209 on the graphite placement mechanism 2 on the front side is completely separated from the semicircular blocking part 308. At this time, the upper and lower first elastic members 310 are compressed by the elastic restoring force of the first elastic member 310. The two semicircular sealing parts 308 are tightly attached together again, and the linkage shaft 209 on the next graphite placement mechanism 2 enters the first notch 311 and squeezes the upper and lower semicircular sealing parts 308, so that the upper and lower first elastic members 310 are compressed until the linkage shaft 209 on the next graphite placement mechanism 2 just enters between the two semicircular sealing parts 308. With the elastic restoring force of the first elastic member 310, the upper and lower semicircular sealing parts 308 are tightly attached together again. At this time, the upper and lower semicircular sealing parts 308 form a circular sealing plate to achieve complete sealing of the air inlet 210 at the end of the heat dissipation flow pipe 208.

[0046] The graphite placement mechanism 2 that has completed heating and growth is then pushed into the interior of the arc-shaped guide frame 102. At this time, the first guide ball 205 just fits into the second arc-shaped guide groove 112, the second guide ball 206 just fits into the first arc-shaped guide groove 111, and the force-bearing toggle portion 207 just fits into the arc-shaped limiting channel 113. Then, the graphite placement mechanism 2 is made to move downward along the arc-shaped guide frame 102 by utilizing its own gravity. In this process, the walking gear 202 continues to move along the surface of the arc-shaped outer tooth seat 103. During the movement of the walking gear 202, the heat dissipation impeller 201 is driven to rotate continuously. The airflow generated by the rotation of the heat dissipation impeller 201 continuously enters the interior of the graphite placement box 203 and is then discharged from the air outlet mesh 211. The continuous rotation of the heat dissipation impeller 201 can accelerate the air flow inside the graphite placement box 203, thereby greatly improving the cooling effect of the graphite after single crystal growth.

[0047] Specific embodiment 2, based on specific embodiment 1, the present invention further includes a push control mechanism 4 and a carrying frame 5, the first mounting frame 303 is mounted on the carrying frame 5 by fasteners, a horizontal support frame 6 is fixedly provided on the carrying frame 5, and the horizontal conveying platform 101 is fixedly mounted on the top of the horizontal support frame 6;

[0048] The push control mechanism 4 includes a mounting base 401 fixedly arranged on the top of the horizontal support frame 6, and the output end of the telescopic cylinder 402 installed on the mounting base 401 is connected to a moving base 403 slidably arranged on the top of the horizontal support frame 6. A lifting control screw 404 is rotatably arranged on the top of the moving base 403, and a lifting control gear 405 is fixedly arranged on the side surface of the lifting control screw 404. A horizontal pushing part 406 slidingly sleeved on the conveying control shaft 118 is threadedly engaged with the lifting control screw 404; in the initial state, the horizontal pushing part 406 is in a low position and is below the force-bearing toggle part 207. When the next graphite placement mechanism 2 is pushed to the position of the heating growth box 301, the horizontal pushing part 406 is controlled to move upward until it is in contact with the bottom of the horizontal conveying platform 101, and then the moving base 403 can be controlled to move forward by the forward movement of the telescopic cylinder 402. The horizontal pushing part 406 that moves synchronously with the moving base 403 pushes the graphite placement mechanism 2 that has completed heating and growth into the interior of the arc-shaped guide frame 102.

[0049] In this embodiment of the present invention, a meshing portion 407 that meshes with the lifting control gear 405 is slidingly provided on the top of the movable seat 403, a support rod 409 is fixedly provided on the mounting plate 408 fixed on the top of the movable seat 403, and a magnetic plate 410 is fixedly provided at one end of the support rod 409, and the meshing portion 407 is slidably sleeved on the support rod 409, and the mounting plate 408 and the meshing portion 407 are connected by a second elastic member 411, and the electromagnet installed on the magnetic plate 410 and the permanent magnet on the meshing portion 407 magnetically repel each other; when the next graphite placement mechanism 2 is pushed to the position of the heating growth box 301, the horizontal pushing portion 406 is between the force-bearing toggle portion 207 on the frontmost graphite placement mechanism 2 and the force-bearing toggle portion 207 on the next graphite placement mechanism 2, and at this time, the electromagnet on the control magnetic plate 410 is energized to generate magnetic repulsion on the meshing portion 407 The force causes the meshing part 407 to move and drive the lifting control gear 405 to rotate. The second elastic member 411 is compressed by the force. The lifting control screw 404 that rotates synchronously with the lifting control gear 405 drives the horizontal push part 406 to move upward until it is in contact with the bottom of the horizontal conveying platform 101. Then, the forward movement of the telescopic cylinder 402 pushes the graphite placement mechanism 2 that has completed the heating and growth into the interior of the arc guide frame 102. Then, the electromagnet on the magnetic plate 410 is controlled to be powered off and demagnetized. With the help of the elastic restoring force of the second elastic member 411, the meshing part 407 is moved in the opposite direction and reset. In this process, the lifting control gear 405 is driven to rotate in the opposite direction by the meshing part 407, and the horizontal push part 406 is driven to move downward and reset under the action of the lifting control screw 404. Finally, the retraction movement of the telescopic cylinder 402 can drive the moving seat 403 to move in the opposite direction and reset.

[0050] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A large-size diamond single crystal growth device, characterized in that: include: A carrying and conveying mechanism (1), the carrying and conveying mechanism (1) comprising a horizontal conveying platform (101), an arc-shaped guide frame (102) being fixedly provided at one end of the horizontal conveying platform (101), the arc-shaped guide frame (102) being arranged tangentially to the horizontal conveying platform (101), an arc-shaped external tooth seat (103) coaxial with the arc-shaped guide frame (102) being installed on one side, and a discharge port (104) communicating with the inner cavity of the arc-shaped guide frame (102) being provided at the bottom thereof; A graphite placement mechanism (2), wherein the graphite placement mechanism (2) is linearly arrayed on the horizontal conveying platform (101), and the graphite placement mechanism (2) and the horizontal conveying platform (101) are slidably matched, and the graphite placement mechanism (2) includes a heat dissipation impeller (201) and a traveling gear (202) that rotate synchronously. When the graphite placement mechanism (2) moves to the inside of the arc-shaped guide frame (102) after completing heating and growth, the graphite placement mechanism (2) moves downward along the arc-shaped guide frame (102), causing the traveling gear (202) to rotate along the arc-shaped outer tooth seat (103), and the heat dissipation impeller (201) that rotates synchronously with the traveling gear (202) realizes graphite cooling; and a heating growth mechanism (3), the heating growth mechanism (3) being fixedly mounted above the horizontal conveying platform (101), the heating growth mechanism (3) comprising a heating growth box (301) fitted with the corresponding graphite placement mechanism (2), a rectangular opening (302) for communicating with the corresponding graphite placement mechanism (2) being provided at a central position on one side of the heating growth box (301); The arc-shaped outer tooth seat (103) and the arc-shaped guide frame (102) are fixedly connected via an axial rod; a side of the arc-shaped guide frame (102) close to the arc-shaped outer tooth seat (103) is provided with an arc-shaped guide plate (105) coaxial with the arc-shaped outer tooth seat; the arc-shaped guide plate (105) and the arc-shaped guide frame (102) are fixedly connected via an axial rod; a horizontal guide plate (106) fixedly connected to the arc-shaped guide plate (105) is provided above the horizontal conveying platform (101); a first arc-shaped channel (107) is provided on the surface of the arc-shaped guide plate (105); and a horizontal channel (108) connected to the first arc-shaped channel (107) is provided on the surface of the horizontal guide plate (106); A horizontal guide groove (109) is provided on the top of the horizontal conveying platform (101), a horizontal limit channel (110) connected to the horizontal guide groove (109) is provided on the bottom of the horizontal conveying platform (101), a first arc-shaped guide groove (111) and a second arc-shaped guide groove (112) are provided in the inner cavity of the arc-shaped guide frame (102), the first arc-shaped guide groove (111) is connected to the horizontal guide groove (109), and the second arc-shaped guide groove (112) is connected to the discharge port (104); An arc-shaped limiting channel (113) communicating with the first arc-shaped guide groove (111) is provided on the inner wall of the arc-shaped guide frame (102); a second arc-shaped channel (114) communicating with the inner cavity of the arc-shaped outer tooth seat (103) is provided on one side of the arc-shaped guide frame (102) close to the arc-shaped outer tooth seat (103); and the first arc-shaped channel (107) is communicated with the discharge port (104) via a shaft opening (115).

2. The large-size diamond single crystal growth device according to claim 1, characterized in that: A horizontal conveying portion (116) is slidably provided inside the horizontal limiting channel (110), and the horizontal conveying portion (116) is slidably sleeved on the horizontal guide plate (106). A conveying control motor (117) is fixedly installed on the side of the horizontal conveying platform (101) away from the arc-shaped guide frame (102), and the output end of the conveying control motor (117) is connected to a conveying control shaft (118) threadedly engaged with the horizontal conveying portion (116).

3. The large-size diamond single crystal growth device according to claim 2, characterized in that: The graphite placement mechanism (2) further comprises a graphite placement box (203), a graphite fixing portion (204) is fixedly provided at the bottom of the graphite placement box (203), a first guide ball (205) is fixedly provided at the top of the graphite placement box (203), a second guide ball (206) is fixedly provided at the bottom of the graphite placement box (203) and is slidably fitted in the horizontal guide groove (109), and a force-bearing toggle portion (207) is fixedly provided at the bottom of the second guide ball (206) and is slidably fitted in the horizontal limit channel (110); A heat dissipation pipe (208) connected to the interior of the graphite placement box (203) is fixedly provided, and the heat dissipation pipe (208) is slidably fitted inside the horizontal channel (108). A linkage shaft (209) is rotatably provided inside the heat dissipation pipe (208). One end of the linkage shaft (209) extending to the outside of the heat dissipation pipe (208) is fixed on the traveling gear (202). The heat dissipation impeller (201) is located inside the heat dissipation pipe (208) and is fixedly connected to the linkage shaft (209). A plurality of air inlets (210) are provided at the end of the heat dissipation pipe (208) close to the traveling gear (202), and an air outlet mesh (211) is provided on one side of the graphite placement box (203).

4. The large-size diamond single crystal growth device according to claim 3, characterized in that: A first mounting frame (303) is fixedly provided on a side of the heating growth box (301) away from the rectangular opening (302), a first limiting frame (304) is fixedly provided on a side of the heating growth box (301) close to the rectangular opening (302), a second mounting frame (305) is fixedly provided on the top of the first limiting frame (304), and a second limiting frame (306) is fixedly provided inside the second mounting frame (305); Two lifting parts (307) are symmetrically arranged on the upper and lower sides of the inner side of the second mounting frame (305), the first limiting frame (304) and the second limiting frame (306) are both slidably matched with the corresponding lifting parts (307), and a semicircular blocking part (308) is fixedly arranged on the end of the lifting part (307), and a support plate (309) fixedly arranged on the surface of the lifting part (307) is connected to the second mounting frame (305) through a first elastic member (310).

5. The large-size diamond single crystal growth device according to claim 4, characterized in that: It also includes a push control mechanism (4) and a supporting frame (5), wherein the first mounting frame (303) is mounted on the supporting frame (5) via fasteners, a horizontal support frame (6) is fixedly provided on the supporting frame (5), and the horizontal conveying platform (101) is fixedly mounted on the top of the horizontal support frame (6); The push control mechanism (4) includes a mounting seat (401) fixedly arranged on the top of the horizontal support frame (6); the output end of the telescopic cylinder (402) installed on the mounting seat (401) is connected to a movable seat (403) slidably arranged on the top of the horizontal support frame (6); a lifting control screw (404) is rotatably arranged on the top of the movable seat (403); a lifting control gear (405) is fixedly arranged on the side surface of the lifting control screw (404); and a horizontal push portion (406) slidably sleeved on the conveying control shaft (118) is threadedly engaged with the lifting control screw (404).

6. The large-size diamond single crystal growth device according to claim 5, characterized in that: The top of the movable seat (403) is slidably provided with an engaging portion (407) that engages with the lifting control gear (405); a support rod (409) is fixedly provided on a mounting plate (408) fixed on the top of the movable seat (403); a magnetic plate (410) is fixedly provided at one end of the support rod (409); the engaging portion (407) is slidably sleeved on the support rod (409); the mounting plate (408) and the engaging portion (407) are connected via a second elastic member (411); and the electromagnet installed on the magnetic plate (410) and the permanent magnet on the engaging portion (407) magnetically repel each other.

7. The method for using the large-size diamond single crystal growth device according to claim 6, wherein: The steps include: S01, performing high temperature and high pressure treatment on the graphite in the graphite fixing portion (204) at the corresponding position by heating the heating component inside the growth box (301), causing the graphite to undergo single crystal growth to form diamond under the high temperature and high pressure environment, until the heating growth of the graphite in the graphite placement mechanism (2) at the front side is completed; S02, controlling the conveying control motor (117) to run once, using the rotation of the conveying control shaft (118) to drive the horizontal conveying part (116) to slide forward along the horizontal limit channel (110), and pushing the multiple graphite placement mechanisms (2) on the horizontal conveying platform (101) to move synchronously through the horizontal conveying part (116), and pushing the next graphite placement mechanism (2) to the position of the heating growth box (301). At this time, the upper and lower semicircular sealing parts (308) form a circular sealing plate to achieve complete sealing of the air inlet (210) at the end of the heat dissipation flow tube (208), and continue heating growth using the same control method; S03. When the next graphite placement mechanism (2) is pushed to the position of the heating growth box (301), the horizontal push portion (406) is located between the force-receiving and shifting portion (207) on the frontmost graphite placement mechanism (2) and the force-receiving and shifting portion (207) on the next graphite placement mechanism (2). At this time, the electromagnet on the control magnetic plate (410) is energized to generate a magnetic repulsive force on the meshing portion (407). The meshing portion (407) that moves drives the lifting control gear (405) to rotate. The second elastic member (411) is compressed by the force. The lifting control screw (404) that rotates synchronously with the lifting control gear (405) drives the horizontal push portion (406) to move upward until it is attached to the bottom of the horizontal conveying platform (101). S04, then, the graphite placement mechanism (2) after the heating and growth is pushed into the interior of the arc-shaped guide frame (102) by the forward movement of the telescopic cylinder (402), and then the electromagnet on the magnetic plate (410) is controlled to be powered off and demagnetized, and the meshing portion (407) is moved in the reverse direction and reset by means of the elastic restoring force of the second elastic member (411). In this process, the meshing portion (407) drives the lifting control gear (405) to rotate in the reverse direction, and the horizontal push portion (406) is driven to move downward and reset under the action of the lifting control screw (404), and finally, the movable seat (403) is driven to move in the reverse direction and reset by the retraction movement of the telescopic cylinder (402); S05. After the graphite placement mechanism (2) that has completed heating and growth is pushed into the interior of the arc-shaped guide frame (102) by the forward movement of the telescopic cylinder (402), the graphite placement mechanism (2) is moved downward along the arc-shaped guide frame (102) by its own gravity. During this process, the running gear (202) is continuously moved along the surface of the arc-shaped outer tooth seat (103). During the movement of the running gear (202), the heat dissipation impeller (201) is driven to continuously rotate. The airflow generated by the rotation of the heat dissipation impeller (201) continuously enters the interior of the graphite placement box (203) and is then discharged through the air outlet mesh (211). The continuous rotation of the heat dissipation impeller (201) is used to accelerate the air flow inside the graphite placement box (203); S06. When the graphite placement mechanism (2) after completing heating and growth moves to the inside of the arc-shaped guide frame (102) and slides downward to the position of the discharge port (104), the graphite placement mechanism (2) after completing heating and growth falls from the discharge port (104) to the outside of the arc-shaped guide frame (102) to complete collection, and steps S01 to S06 are circulated to achieve continuous high-temperature and high-pressure treatment of a plurality of graphites.

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