Large-size diamond single crystal growth device and method

Abstract

The invention discloses a large-size diamond single crystal growth device and method, and relates to the related technical field of diamonds. An arc-shaped guide frame is fixed to one end of a horizontal conveying table, an arc-shaped outer tooth holder coaxial with the arc-shaped guide frame is installed on one side of the arc-shaped guide frame, and a discharging opening communicated with an inner cavity of the arc-shaped guide frame is formed in the bottom of the arc-shaped guide frame; each graphite placement mechanism comprises a heat dissipation impeller and a walking gear which rotate synchronously, and the heating growth mechanism is fixedly installed above the horizontal conveying table and comprises a heating growth box attached to the corresponding graphite placement mechanism. After the linkage shaft on the graphite placing mechanism on the foremost side is separated from the semicircular plugging parts, the linkage shaft on the next graphite placing mechanism enters the space between the two semicircular plugging parts, and the air inlet is sealed through the upper semicircular plugging part and the lower semicircular plugging part, so that the internal temperature loss is effectively reduced in the continuous operation process, and the working efficiency is improved. And the working efficiency of single crystal growth is further improved.

Description

Technical Field

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

[0002] Diamond is a mineral composed of carbon elements, which is an allotrope of graphite. Diamond is the hardest substance naturally occurring in nature. Synthetic diamond can be prepared from graphite under high temperature and high pressure environments. Diamond is widely used in various fields. A single-crystal growth device is required in the process of preparing diamond from graphite.

[0003] In the prior art, when a diamond single-crystal growth device is in use, generally, graphite is directly fixed and placed inside the device box body, and graphite grows into diamond under the high temperature and high pressure environment generated inside the device box body. After the single-crystal growth is completed, it is taken out after cooling and new graphite is placed.

[0004] However, in the whole process of the above-mentioned graphite single-crystal growth, when the device box body is opened, it is easy to cause a large amount of heat loss inside the device box body, which is not conducive to the continuous operation of the device box body. At the same time, after the single-crystal growth is completed, it needs to be cooled before it can be taken out and new graphite can be placed, thereby reducing the working efficiency of single-crystal growth. For this reason, we provide a large-size single-crystal diamond growth device and method to solve the above problems. Summary of the Invention

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

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

[0007] The present invention relates to a large-size single-crystal diamond growth device, which includes a carrying and conveying mechanism. The carrying and conveying mechanism includes a horizontal conveying table. One end of the horizontal conveying table is fixedly provided with an arc-shaped guiding frame, and the arc-shaped guiding frame is arranged tangentially to the horizontal conveying table. An arc-shaped external tooth seat coaxial with the arc-shaped guiding frame is installed on one side of the arc-shaped guiding frame, and a discharge port communicating with its inner cavity is opened at the bottom of the arc-shaped guiding frame; a graphite placing mechanism, the graphite placing mechanism is linearly arranged in an array on the horizontal conveying table, and the graphite placing mechanism is slidably matched with the horizontal conveying table. The graphite placing mechanism includes a heat dissipation impeller and a walking gear that rotate synchronously. After the graphite placing mechanism after heating and growth moves into the arc-shaped guiding frame, the graphite placing mechanism moves downward along the arc-shaped guiding frame, so that the walking gear rotates along the arc-shaped external tooth seat, and the heat dissipation impeller that rotates synchronously with the walking gear realizes the cooling of the graphite; and a heating and growth mechanism, the heating and growth mechanism is fixedly installed above the horizontal conveying table, and the heating and growth mechanism includes a heating and growth box that fits with the corresponding graphite placing mechanism, and a rectangular through port for communicating with the corresponding graphite placing mechanism is opened at the center of one side of the heating and growth box.

[0008] The present invention is further provided that the arc-shaped external tooth seat and the arc-shaped guiding frame are fixedly connected by an axial rod. An arc-shaped guiding plate coaxial with the arc-shaped guiding frame is arranged on one side of the arc-shaped guiding frame close to the arc-shaped external tooth seat, and the arc-shaped guiding plate and the arc-shaped guiding frame are fixedly connected by an axial rod. A horizontal guiding plate fixedly connected with the arc-shaped guiding plate is arranged above the horizontal conveying table. A first arc-shaped channel is opened on the surface of the arc-shaped guiding plate, and a horizontal channel communicating with the first arc-shaped channel is opened on the surface of the horizontal guiding plate.

[0009] The present invention is further provided that a horizontal guiding groove is opened at the top of the horizontal conveying table, and a horizontal limiting channel communicating with the horizontal guiding groove is opened at the bottom of the horizontal conveying table. A first arc-shaped guiding groove and a second arc-shaped guiding groove are respectively opened in the inner cavity of the arc-shaped guiding frame. The first arc-shaped guiding groove communicates with the horizontal guiding groove, and the second arc-shaped guiding groove communicates with the discharge port; an arc-shaped limiting channel communicating with the first arc-shaped guiding groove is opened on the inner wall of the arc-shaped guiding frame, and a second arc-shaped channel communicating with its inner cavity is opened on one side of the arc-shaped guiding frame close to the arc-shaped external tooth seat. The first arc-shaped channel and the discharge port are communicated through a shaft body through port.

[0010] The present invention is further provided that a horizontal conveying part is slidably arranged inside the horizontal limiting channel, the horizontal conveying part is slidably sleeved on the horizontal guiding plate, and a conveying control motor is fixedly installed on one side of the horizontal conveying table away from the arc-shaped guiding frame. The output end of the conveying control motor is connected with a conveying control shaft that is in threaded cooperation 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 arranged at the bottom of the graphite placement box, a first guide ball is fixedly arranged at the top of the graphite placement box, a second guide ball is fixedly arranged at the bottom of the graphite placement box and slides in the horizontal guide groove, and a force-bearing toggle portion is fixedly arranged at the bottom of the second guide ball and slides in the horizontal limit channel; a heat dissipation flow tube connected to the interior of the graphite placement box is fixedly arranged on the graphite placement box, the heat dissipation flow tube slides in the horizontal channel, a linkage shaft is rotatably arranged inside the heat dissipation flow tube, one end of the linkage shaft extending to the outside of the heat dissipation flow tube is fixed on the traveling gear, the heat dissipation impeller is located on the inner side of the heat dissipation flow tube and is fixedly connected to the linkage shaft, a plurality of air inlets are provided at the end of the heat dissipation flow 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 as follows: 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 arranged on the supporting frame, and the horizontal conveying platform is fixedly arranged on the top of the horizontal support frame; the sliding control mechanism includes a mounting seat fixedly arranged 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 slidably arranged on the top of the horizontal support frame, a lifting control screw is rotatably arranged on the top of the moving seat, a lifting control gear is fixedly arranged on the peripheral side of the lifting control screw, and the horizontal sliding part slidably 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 meshes with the lifting control gear is slidably 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 on 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 sealing parts, the upper and lower first elastic members are compressed until the linkage shaft on the frontmost graphite placement mechanism completely separates from the semicircular sealing part. At this time, the upper and lower semicircular sealing 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 sealing parts, so that the upper and lower first elastic members are compressed until the linkage shaft on the next graphite placement mechanism just enters between the two semicircular sealing parts. The upper and lower semicircular sealing parts are tightly attached together again with the help of the elastic restoring force of the first elastic member. At this time, a circular sealing plate is formed by the upper and lower semicircular sealing 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. After the graphite placement mechanism has completed heating and growth and is moved to the inside of the arc-shaped guide frame, the present invention utilizes the graphite placement mechanism's own gravity to make it move downward along the arc-shaped guide frame. In this process, the traveling gear continues to travel along the surface of the arc-shaped outer tooth seat. During the travel of the traveling gear, the heat dissipation impeller is driven to rotate continuously. The airflow generated by the rotation of the heat dissipation impeller continuously enters 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 push part is between the force-bearing toggle part on the frontmost graphite placement mechanism and the force-bearing toggle part on the next graphite placement mechanism. At this time, the electromagnet on the control magnetic plate is energized to generate a magnetic repulsion force on the meshing part, and the moving meshing part drives the lifting control gear to rotate. The second elastic member is compressed by force, and the lifting control screw that rotates synchronously with the lifting control gear drives the horizontal push part to move upward until it is in contact with the bottom of the horizontal conveying platform. Then, the forward movement of the telescopic cylinder pushes the graphite placement mechanism after the heating growth is pushed into the arc guide frame. Then, the electromagnet on the magnetic plate is controlled to be powered off and demagnetized, and the meshing part is moved in the opposite direction and reset with the help of the elastic restoring force of the second elastic member. In this process, the lifting control gear is driven to rotate in the opposite direction by the meshing part, and the horizontal push part is driven to move downward and reset under the action of the lifting control screw. Finally, the moving seat can be driven to move in the opposite direction and reset by 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] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a large-size single-crystal diamond growth device.

[0022] Figure 2 It is Figure 1 a side structural view of

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

[0024] Figure 4 It is Figure 3 a side structural view of

[0025] Figure 5 It is Figure 3 a longitudinal structural sectional view.

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

[0027] Figure 7 It is Figure 6 a side structural view of

[0028] Figure 8 It is Figure 6 a structural schematic diagram from another angle.

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

[0030] Figure 10 It is Figure 9 a side structural view of

[0031] Figure 11 It is Figure 9 a structural schematic diagram from another angle.

[0032] Figure 12 It is Figure 11 an enlarged view of the partial structure at A in

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

[0034] Figure 14 It is Figure 13 a front structural view of

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

[0036] 1-carrying conveying mechanism, 101-horizontal conveying platform, 102-arc guide frame, 103-arc outer gear seat, 104-discharging 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 body 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 pipe, 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- push control mechanism, 401- mounting seat, 402- telescopic cylinder, 403- moving seat, 404- lifting control screw, 405- lifting control gear, 406- horizontal pushing 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] For specific embodiment 1, please refer to Figure 1-14, the present invention is a large-size single crystal diamond growth device, including a carrying and conveying mechanism 1, a graphite placing mechanism 2, and a heating and growing mechanism 3; the carrying and conveying mechanism 1 includes a horizontal conveying platform 101, and an arc-shaped guiding frame 102 is fixedly arranged at one end of the horizontal conveying platform 101. The arc-shaped guiding frame 102 is arranged tangentially to the horizontal conveying platform 101. An arc-shaped external tooth seat 103 coaxial with the arc-shaped guiding frame 102 is installed on one side of the arc-shaped guiding frame 102. A discharge port 104 communicating with its inner cavity is opened at the bottom of the arc-shaped guiding frame 102; the graphite placing mechanism 2 is linearly and arrayedly arranged on the horizontal conveying platform 101, and the graphite placing mechanism 2 is slidably matched with the horizontal conveying platform 101. The graphite placing mechanism 2 includes a heat dissipation impeller 201 and a traveling gear 202 that rotate synchronously. After the graphite placing mechanism 2 after heating and growing moves into the arc-shaped guiding frame 102, the graphite placing mechanism 2 moves downward along the arc-shaped guiding frame 102, so that the traveling gear 202 rotates along the arc-shaped external tooth seat 103, and the heat dissipation impeller 201 rotating 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. The heating and growing mechanism 3 includes a heating and growing box 301 that fits with the corresponding graphite placing mechanism 2 (a pressurizing pipe and a pressure relief pipe are installed thereon, and a control valve is installed on the pressure relief pipe). A rectangular through port 302 for communicating with the corresponding graphite placing mechanism 2 is opened at the center position on 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 guiding frame 102 through an axial rod. An arc-shaped guiding plate 105 coaxial with the arc-shaped guiding frame 102 is arranged on one side of the arc-shaped guiding frame 102 close to the arc-shaped external tooth seat 103. The arc-shaped guiding plate 105 is fixedly connected to the arc-shaped guiding frame 102 through an axial rod. A horizontal guiding plate 106 fixedly connected to the arc-shaped guiding plate 105 is arranged above the horizontal conveying platform 101. A first arc-shaped channel 107 is opened on the surface of the arc-shaped guiding plate 105, and a horizontal channel 108 communicating with the first arc-shaped channel 107 is opened on the surface of the horizontal guiding plate 106;

[0040] 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 at the bottom of the horizontal conveying platform 101, a first arc guide groove 111 and a second arc guide groove 112 are 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 connected to the first arc guide groove 111 is provided on the inner wall of the arc guide frame 102 shaped limiting channel 113, a second arc channel 114 connected to the inner cavity of the arc guide frame 102 is opened on one side close to the arc external tooth seat 103, and the first arc channel 107 is connected to the discharge port 104 through the shaft opening 115. When the graphite placement 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 placement 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 slidably arranged inside the horizontal limit channel 110, and the horizontal conveying portion 116 is slidably mounted 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 matched 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 limit 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 each 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 that is slidably fitted in the horizontal guide groove 109 is fixedly provided at the bottom of the graphite placement box 203, and a force-bearing toggle portion 207 that is slidably fitted in the horizontal limit channel 110 is fixedly provided at the bottom of the second guide ball 206;

[0043] A heat dissipation flow tube 208 connected to the inside of the graphite placement box 203 is fixedly provided. The heat dissipation flow tube 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, and the heat dissipation flow tube 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 rotatably provided inside the heat dissipation flow tube 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). One end of the linkage shaft 209 extending to the outside of the heat dissipation flow tube 208 is fixed on the running gear 202. The heat dissipation impeller 201 is located on the inner side of the heat dissipation flow tube 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; 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 uses its own gravity to make it move downward along the arc-shaped guide frame 102 (circular motion from top to bottom), and in this process, the traveling gear 202 continues to travel 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), and the heat dissipation impeller 201 is driven to rotate continuously during the movement of the traveling gear 202, and the airflow generated by the rotation of the heat dissipation impeller 201 continuously enters the inside of the graphite placement box 203 and is then discharged from the air outlet mesh 211, and 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 one side of the heating growth box 301 away from the rectangular opening 302, a first limiting frame 304 is fixedly provided on one 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 fixedly provided with the first limiting frame 304 and the second limiting frame 306. The corresponding lifting part 307 is slidably matched, and a semicircular sealing part 308 is fixedly arranged on the end of the lifting part 307. The support plate 309 fixedly arranged 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 and growth of the graphite inside the foremost graphite placement mechanism 2 is completed, the conveying control motor 117 is controlled to operate once, and the next graphite placement mechanism 2 is pushed to the position of the heating growth chamber 301 through the horizontal conveying portion 116. During this process, the linkage shaft 209 on the foremost graphite placement mechanism 2 enters the second notch 312 and presses the upper and lower semi-circular sealing portions 308, causing the upper and lower first elastic members 310 to be compressed. Until the linkage shaft 209 on the foremost graphite placement mechanism 2 completely disengages from the semi-circular sealing portion 308, at this time, with the elastic restoring force of the first elastic member 310, the upper and lower semi-circular sealing portions 308 are pressed together again. The linkage shaft 209 on the next graphite placement mechanism 2 enters the first notch 311 and presses the upper and lower semi-circular sealing portions 308, causing the upper and lower first elastic members 310 to be compressed. Until the linkage shaft 209 on the next graphite placement mechanism 2 just enters between the two semi-circular sealing portions 308, with the elastic restoring force of the first elastic member 310, the upper and lower semi-circular sealing portions 308 are pressed together again. At this time, a circular sealing plate is formed by the upper and lower semi-circular sealing portions 308 to completely seal the air inlet 210 at the end of the heat dissipation flow pipe 208;

[0046] Then, the graphite placement mechanism 2 after the heating and growth is pushed into 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-applying portion 207 just fits into the arc-shaped limiting channel 113. Then, using the self-weight of the graphite placement mechanism 2, it moves downward along the arc-shaped guide frame 102. During this process, the traveling gear 202 continuously travels along the surface of the arc-shaped external tooth seat 103. During the traveling of the traveling gear 202, the heat dissipation impeller 201 rotates continuously. The air flow generated by the rotation of the heat dissipation impeller 201 continuously enters the graphite placement box 203 and is discharged from the air outlet mesh holes 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 on the graphite after single crystal growth.

[0047] Specific Embodiment 2, on the basis of Specific Embodiment 1, the present invention further includes a pushing control mechanism 4 and a bearing frame 5. The first mounting frame 303 is installed on the bearing frame 5 through fasteners. A horizontal support frame 6 is fixedly arranged on the bearing frame 5, and the horizontal conveying table 101 is fixedly installed on the top of the horizontal support frame 6;

[0048] The push control mechanism 4 includes a mounting seat 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 seat 401 is connected to a moving 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 moving seat 403, and a lifting control gear 405 is fixedly arranged on the side surface of the lifting control screw 404. A horizontal push part 406 slidably sleeved on the conveying control shaft 118 is threadedly matched with the lifting control screw 404; in the initial state, the horizontal push 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 push part 406 is controlled to move upward to fit the bottom of the horizontal conveying platform 101, and then the moving seat 403 can be controlled to move forward by the forward movement of the telescopic cylinder 402. The horizontal push part 406 that moves synchronously with the moving seat 403 pushes the graphite placement mechanism 2 that has completed heating and growth into the arc-shaped guide frame 102.

[0049] In this embodiment of the present invention, a meshing portion 407 meshing with the lifting control gear 405 is slidably provided on the top of the moving seat 403, a support rod 409 is fixedly provided on the mounting plate 408 fixed on the top of the moving seat 403, a magnetic plate 410 is fixedly provided on one end of the support rod 409, the meshing portion 407 is slidably sleeved on the support rod 409, 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 are magnetically repelled from each other; when the next graphite placement mechanism 2 is pushed to the position of the heating growth box 301, the horizontal push 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 magnetic plate 410 is controlled to be energized to generate magnetic repulsion to the meshing portion 407 The meshing part 407 is forced to move and 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 part 406 to move upward until it is in contact with the bottom of the horizontal conveying platform 101. Then, the graphite placement mechanism 2 that has completed the heating and growth is pushed into the arc guide frame 102 through the forward movement of the telescopic cylinder 402. 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 through the meshing part 407. Under the action of the lifting control screw 404, the horizontal push part 406 is driven to move downward and reset. Finally, the moving seat 403 can be driven to move in the opposite direction and reset through the retraction movement of the telescopic cylinder 402.

[0050] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A large-size diamond single crystal growth device, characterized in that: include: A load-bearing conveying mechanism (1), the load-bearing conveying mechanism (1) comprising a horizontal conveying platform (101), an arc-shaped guide frame (102) being fixedly arranged 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 of the arc-shaped guide frame (102), 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 arranged in a linear array 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) comprises a heat dissipation impeller (201) and a traveling gear (202) that rotate synchronously, and 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), so that the traveling gear (202) rotates along the arc-shaped external 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), wherein the heating growth mechanism (3) is fixedly installed above the horizontal conveying platform (101), the heating growth mechanism (3) comprises a heating growth box (301) that is in contact with the corresponding graphite placement mechanism (2), and a rectangular opening (302) for connecting to the corresponding graphite placement mechanism (2) is provided at a central position on one side of the heating growth box (301).

2. A large-size diamond single crystal growth device according to claim 1, characterized in that: The arc-shaped external tooth seat (103) and the arc-shaped guide frame (102) are fixedly connected via an axial rod; a coaxial arc-shaped guide plate (105) is provided on one 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 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).

3. A large-size diamond single crystal growth device according to claim 2, characterized in that: 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 respectively 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) connected to 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) connected to the inner cavity of the arc-shaped external gear seat (103) is provided on one side of the arc-shaped guide frame (102) close to the arc-shaped external gear seat (103); and the first arc-shaped channel (107) is connected to the discharge port (104) via a shaft opening (115).

4. A large-size diamond single crystal growth device according to claim 3, characterized in that: A horizontal conveying portion (116) is slidably arranged 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 matched with the horizontal conveying portion (116).

5. A large-size diamond single crystal growth device according to claim 4, characterized in that: The graphite placement mechanism (2) also includes a graphite placement box (203), a graphite fixing portion (204) is fixedly arranged at the bottom of the graphite placement box (203), a first guide ball (205) is fixedly arranged at the top of the graphite placement box (203), a second guide ball (206) slidably fitted in the horizontal guide groove (109) is fixedly arranged at the bottom of the graphite placement box (203), and a force-bearing toggle portion (207) slidably fitted in the horizontal limit channel (110) is fixedly arranged at the bottom of the second guide ball (206); The graphite placement box (203) is fixedly provided with a heat dissipation flow tube (208) connected with the interior thereof, the heat dissipation flow tube (208) is slidably fitted inside the horizontal channel (108), a linkage shaft (209) is rotatably provided inside the heat dissipation flow tube (208), one end of the linkage shaft (209) extending to the outside of the heat dissipation flow tube (208) is fixed on the travel gear (202), the heat dissipation impeller (201) is located inside the heat dissipation flow tube (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 flow tube (208) close to the travel gear (202), and an air outlet mesh hole (211) is provided on one side of the graphite placement box (203).

6. A large-size diamond single crystal growth device according to claim 5, characterized in that: A first mounting frame (303) is fixedly arranged on a side of the heating growth box (301) away from the rectangular opening (302), a first limiting frame (304) is fixedly arranged on a side of the heating growth box (301) close to the rectangular opening (302), a second mounting frame (305) is fixedly arranged on the top of the first limiting frame (304), and a second limiting frame (306) is fixedly arranged inside the second mounting frame (305); Two lifting parts (307) are symmetrically arranged on 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), 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).

7. A large-size diamond single crystal growth device according to claim 6, characterized in that: It also includes a push control mechanism (4) and a carrying frame (5), wherein the first mounting frame (303) is mounted on the carrying frame (5) by means of fasteners, a horizontal support frame (6) is fixedly arranged on the carrying 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) comprises a mounting seat (401) fixedly arranged on the top of the horizontal support frame (6); the output end of a telescopic cylinder (402) mounted on the mounting seat (401) is connected to a moving 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 moving 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 matched with the lifting control screw (404).

8. The large-size diamond single crystal growth device according to claim 7, 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.

9. The method for using the large-size diamond single crystal growth device according to claim 8, characterized in that: The steps include: S01, performing high temperature and high pressure treatment on the graphite in the graphite fixing part (204) at the corresponding position by heating the heating component inside the growth box (301), so that the graphite undergoes 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 a plurality of 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 pipe (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 part (406) is located between the force-bearing moving part (207) on the frontmost graphite placement mechanism (2) and the force-bearing moving part (207) on the next graphite placement mechanism (2), and at this time, the electromagnet on the control magnetic plate (410) is energized to generate a magnetic repulsive force on the meshing part (407), and the moving meshing part (407) drives the lifting control gear (405) to rotate, and the second elastic member (411) is compressed by the force, and 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 attached to the bottom of the horizontal conveying platform (101); S04, then, the graphite placement mechanism (2) after heating and growth is pushed into the arc-shaped guide frame (102) through 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 moving 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, and in this process, the running gear (202) is continuously moved along the surface of the arc-shaped outer gear seat (103), and the heat dissipation impeller (201) is driven to continuously rotate during the running of the running gear (202). 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), and 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) that has completed 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) that has completed 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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