Re-feeding device for single crystal furnace

Abstract

The present application discloses a re-feeding and transporting device for a single crystal furnace, comprising a first transporting mechanism, a second transporting mechanism and a vibrating mechanism. The first transporting mechanism comprises a first silo and a first vibrating screen unloading chute, and the first silo is fixedly arranged above the first vibrating screen unloading chute. The second transporting mechanism comprises a second silo and a second vibrating screen unloading chute, and the second silo is fixedly arranged above the second vibrating screen unloading chute, the second vibrating screen unloading chute is located above the first vibrating screen unloading chute, and the first end of the second vibrating screen unloading chute is connected to the first end of the first vibrating screen unloading chute. The vibrating mechanism comprises a vibrator and a frame, the vibrator is fixedly arranged in the frame, the frame is movably connected to the first end of the first vibrating screen unloading chute, and the frame is located below the second vibrating screen unloading chute, and the frame is movably connected to the first end of the second vibrating screen unloading chute. The two silos can unload materials of different sizes respectively, and the device discharges materials evenly, is easy to control, and has high reliability.

Description

Technical Field

[0001] The present application relates to the technical field of material conveying equipment, and in particular to a re-feeding material conveying device for a single crystal furnace. Background Art

[0002] A single crystal furnace is a device that melts polycrystalline materials such as polysilicon in an inert gas environment and grows single crystals without dislocation. In actual production, a feeder is usually used to feed silicon materials into the single crystal furnace for processing. The feeder usually includes a hopper and a trough. The silicon materials fall from the hopper into the trough and are then fed to the single crystal furnace.

[0003] Silicon materials generally come in two types: large blocks and small blocks. Existing feeders generally have a single hopper, and large and small blocks are discharged from the same hopper. This will result in small blocks being discharged from the hopper in the early stage, and only large blocks remaining in the later stage, causing uneven discharge from the feeder and affecting subsequent production. In addition, the size of the discharge port of a single hopper is difficult to determine. If the discharge port is set too small, large blocks may get stuck. If the discharge port is set too large, the discharge speed of small blocks will be fast and difficult to control. In addition, the trough is made of quartz, and there is a risk of large blocks breaking the trough when they fall from the hopper into the trough. Summary of the invention

[0004] The embodiment of the present application provides a re-feeding device for a single crystal furnace to solve the problem of uneven material discharge from a feeder.

[0005] The embodiment of the present application proposes a re-feeding and transporting device for a single crystal furnace, including a first transporting mechanism, a second transporting mechanism and a vibration mechanism. The first transporting mechanism includes a first material bin and a first vibrating screen unloading chute, and the first material bin is fixedly arranged above the first vibrating screen unloading chute. The second transporting mechanism includes a second material bin and a second vibrating screen unloading chute, and the second material bin is fixedly arranged above the second vibrating screen unloading chute, and the second vibrating screen unloading chute is located above the first vibrating screen unloading chute, and the first end of the second vibrating screen unloading chute is connected to the first end of the first vibrating screen unloading chute. The vibration mechanism includes a vibrator and a frame, and the vibrator is fixedly arranged in the frame, and the frame is movably connected to the first end of the first vibrating screen unloading chute, and the frame is located below the second vibrating screen unloading chute, and the frame is movably connected to the first end of the second vibrating screen unloading chute.

[0006] According to one aspect of the embodiments of the present application, the vibration mechanism further includes a lifting assembly, and the frame is movably connected to the first vibrating screen unloading chute through the lifting assembly. The lifting assembly includes a sliding lifting connecting rod and an adjusting screw. A first slide groove is provided on the first vibrating screen unloading chute, and the sliding lifting connecting rod is inserted into the first slide groove and fixedly connected to the frame. The adjusting screw is threadedly connected to the sliding lifting connecting rod and is rotationally connected to the first vibrating screen unloading chute. When the adjusting screw rotates, the sliding lifting connecting rod is lifted and lowered relative to the first vibrating screen unloading chute to drive the frame to be lifted and lowered relative to the first vibrating screen unloading chute.

[0007] According to one aspect of the embodiment of the present application, the vibration mechanism further includes a first connecting assembly, and the frame is movably connected to the second vibrating screen discharge chute through the first connecting assembly. The first connecting assembly includes a connecting column and a positioning portion. The connecting column is fixedly connected to the frame, and the connecting column can be inserted into the second vibrating screen discharge chute. The positioning portion is movably connected to the second vibrating screen discharge chute, and the positioning portion can be movably connected to the connecting column.

[0008] According to one aspect of the embodiment of the present application, the connecting column is fixedly connected to the top wall of the frame. A first positioning hole is provided on the bottom wall of the second vibrating screen unloading chute, and the connecting column can be inserted into the second vibrating screen unloading chute through the first positioning hole.

[0009] According to one aspect of the embodiment of the present application, a second positioning hole is provided on the side wall of the second vibrating screen unloading chute, and the positioning portion is movably connected in the second positioning hole.

[0010] According to one aspect of the embodiments of the present application, the positioning portion includes a first movable link, a retaining ring, a first elastic member and a stopper; the first movable link is movably connected in the second positioning hole, and the retaining ring and the stopper are respectively fixedly connected to the first movable link along the extension direction of the first movable link; one end of the first elastic member abuts against the retaining ring, and the other end of the first elastic member abuts against the side wall of the second vibrating screen unloading chute. The second positioning hole is provided with a clamping groove and a through groove; when the first movable link rotates to the first position, the stopper is clamped in the clamping groove, and the first elastic member is in a compressed state; when the first movable link rotates to the second position, the stopper is aligned with the through groove, and the first elastic member drives the first movable link to move relative to the second vibrating screen unloading chute, so that the first movable link is connected to the connecting column.

[0011] According to one aspect of the embodiments of the present application, the vibration mechanism further includes a second connecting assembly, and the frame is movably connected to the first vibrating screen discharge chute through the second connecting assembly. The second connecting assembly includes a second movable link, a fixed sleeve, and a second elastic member; a third positioning hole is provided on the side wall of the first vibrating screen discharge chute, and the second movable link is movably connected in the third positioning hole, and the first end of the second movable link is used to connect to the frame; the fixed sleeve is movably sleeved with the second end of the second movable link, and the fixed sleeve is fixedly arranged in the first vibrating screen discharge chute; the second elastic member is arranged in the fixed sleeve, and the second end of the second movable link abuts against the second elastic member.

[0012] According to one aspect of the embodiment of the present application, a fourth positioning hole is provided on the side wall of the frame, and the second movable connecting rod can be inserted into the fourth positioning hole.

[0013] According to one aspect of the embodiment of the present application, the second connecting assembly further comprises a push rod. A second chute is provided on the first vibrating screen unloading chute, and the push rod is inserted into the second chute and fixedly connected to the second movable connecting rod.

[0014] According to one aspect of the embodiment of the present application, the second silo outer fixed sleeve is provided with a fixed ring, and a column is fixedly connected to the fixed ring. The second vibrating screen unloading chute is connected to the column through an elastic structure.

[0015] The re-feeding device for a single crystal furnace provided in the embodiment of the present application has two silos, a first silo and a second silo. The first silo and the second silo can be used to discharge materials of different sizes respectively, such as using the second silo to discharge small blocks and using the first silo to discharge large blocks, so as to realize the control of the discharge of materials of different sizes respectively, and the proportion of materials of different sizes in the discharge of the device is stable and the discharge is uniform. In addition, the sizes of the discharge ports of the first silo and the second silo can be set respectively, which can be adapted to materials of different sizes respectively, avoiding the problems of stuck materials and uncontrollable discharge speed. In addition, small blocks can be discharged first through the second silo, and the small blocks fall into the second vibrating screen discharge chute, and then fall into the first vibrating screen discharge chute, and then the large blocks can be discharged through the first silo, that is, the first vibrating screen discharge chute is paved with small blocks first, and then the large blocks are discharged, so that the large blocks will fall on the small blocks, rather than directly on the first vibrating screen discharge chute, which can avoid the large blocks from damaging the first vibrating screen discharge chute, and can improve the reliability of the device and extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a portion of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of a portion of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of a portion of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of a portion of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0022] Figure 6 A schematic diagram of a portion of the structure of a re-feeding and transporting device for a single crystal furnace provided in an embodiment of the present application;

[0023] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0024] Reference numerals:

[0025] 1-first vibration screen unloading slide, 2-quartz crucible, 3-first silo, 4-second vibration screen unloading slide, 5-second silo, 6-support platform, 7-support column, 8-fixing ring, 9-column, 10-elastic structure, 11-frame, 12-vibrator, 13-mounting ring, 14-fixed frame, 15-connecting column, 16-sliding lifting rod, 17-threaded ring, 18-fourth positioning hole, 19-first slide slot, 20-second slide slot , 21-adjusting screw, 22-turntable, 23-second elastic member, 24-fixed sleeve, 25-second movable connecting rod, 26-push rod, 27-positioning part, 28-first positioning hole, 29-through groove, 30-clamping groove, 31-roller, 32-connecting hole, 33-second positioning hole, 34-third positioning hole, 271-first movable connecting rod, 272-blocking ring, 273-first elastic member, 274-blocking block, 275-handle. DETAILED DESCRIPTION

[0026] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0027] In the description of the present application, it should be noted that, unless otherwise specified, the terms "first" and "second" etc. are used for descriptive purposes only and shall not be understood as indicating or implying relative importance; "plurality" means two or more; the terms "inside", "outside", "top", "bottom" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore shall not be understood as limiting the present application.

[0028] See also Figure 1 An embodiment of the present application provides a re-feeding material transport device for a single crystal furnace, comprising a first material transport mechanism, a second material transport mechanism and a vibration mechanism.

[0029] The first material transport mechanism includes a first material bin 3 and a first vibrating screen unloading chute 1, and the first material bin 3 can be fixedly arranged above the first vibrating screen unloading chute 1 by a support frame or the like. The second material transport mechanism includes a second material bin 5 and a second vibrating screen unloading chute 4, and the second material bin 5 can be fixedly arranged above the second vibrating screen unloading chute 4 by a support frame or the like. The second vibrating screen unloading chute 4 is located above the first vibrating screen unloading chute 1, and the first end of the second vibrating screen unloading chute 4 is connected to the first end of the first vibrating screen unloading chute 1. In the specific setting, the first material bin 3 can be arranged close to the first end of the first vibrating screen unloading chute 1, and the second material bin 5 can be arranged close to the second end of the second vibrating screen unloading chute 4. Figure 1 It is illustrated that the first vibrating screen unloading chute 1 is located above the quartz crucible 2 of the single crystal furnace, and the material (such as silicon material) can fall into the quartz crucible 2 from the second end of the first vibrating screen unloading chute 1 for subsequent production.

[0030] The vibration mechanism includes a vibrator 12 and a frame 11, wherein the vibrator 12 is fixedly disposed in the frame 11, the frame 11 is movably connected to the first end of the first vibrating screen unloading chute 1, and the frame 11 is located below the second vibrating screen unloading chute 4, and the frame 11 is movably connected to the first end of the second vibrating screen unloading chute 4. The vibrator 12 can drive the first vibrating screen unloading chute 1 and the second vibrating screen unloading chute 4 to vibrate, so that the material on the second vibrating screen unloading chute 4 falls into the first vibrating screen unloading chute 1, and the material on the first vibrating screen unloading chute 1 falls into the quartz crucible 2.

[0031] The re-feeding device for a single crystal furnace provided in the embodiment of the present application has two silos, a first silo 3 and a second silo 5. The first silo 3 and the second silo 5 can be used to discharge materials of different sizes respectively. For example, the second silo 5 is used to discharge small blocks, and the first silo 3 is used to discharge large blocks, so that the discharge of materials of different sizes can be controlled separately. The proportion of materials of different sizes in the discharge of the device is stable, and the discharge is uniform. In addition, the sizes of the discharge ports of the first silo 3 and the second silo 5 can be set separately, which can adapt to materials of different sizes respectively, avoiding problems such as material jamming and difficulty in controlling the discharge speed. In addition, small material blocks can be first discharged through the second material bin 5, and the small material blocks fall into the second vibrating screen unloading chute 4, and then fall into the first vibrating screen unloading chute 1, and then large material blocks can be discharged through the first material bin 3, that is, the first vibrating screen unloading chute 1 is first paved with small material blocks, and then the large material blocks are discharged. In this way, the large material blocks will fall on the small material blocks instead of directly falling on the first vibrating screen unloading chute 1, which can prevent the large material blocks from damaging the first vibrating screen unloading chute 1 and the quartz crucible 2, thereby improving the reliability of the device and extending the service life of the device.

[0032] In specific implementation, the first vibrating screen unloading chute 1 can be supported by a support platform 6, and the support platform 6 can be supported by a support column 7. Specifically, Figure 2 As shown, a plurality of rollers 31 may be provided on the support platform 6, and the first vibrating screen unloading chute 1 may be supported by the plurality of rollers 31, which can reduce the friction resistance between the first vibrating screen unloading chute 1 and the support platform 6, reduce wear, and improve the stability of the vibration of the first vibrating screen unloading chute 1, so that the material slowly falls downward into the quartz crucible 2 to complete the unloading. The first vibrating screen unloading chute 1 may be arranged horizontally, or the second end of the first vibrating screen unloading chute 1 may be slightly lower than the first end.

[0033] In the specific implementation, Figure 3 As shown, a fixing ring 8 is provided on the outer fixed sleeve of the second silo 5, and a column 9 is fixedly connected to the fixing ring 8. The second vibrating screen unloading chute 4 is connected to the column 9 through an elastic structure 10, so that the second vibrating screen unloading chute 4 is suspended below the second silo 5, so that the vibrator 12 can drive the second vibrating screen unloading chute 4 to vibrate. The second vibrating screen unloading chute 4 can be arranged horizontally, or the first end of the second vibrating screen unloading chute 4 can be slightly lower than the second end.

[0034] In the specific implementation, Figure 4 As shown, a fixing frame 14 is fixedly connected to the frame body 11 , a mounting ring 13 is fixedly connected to the fixing frame 14 , and the vibrator 12 is fixedly sleeved in the mounting ring 13 , so as to realize a fixed connection between the vibrator 12 and the frame body 11 .

[0035] As a possible implementation, the vibration mechanism further includes a lifting assembly, and the frame 11 is movably connected to the first vibrating screen unloading chute 1 through the lifting assembly. Figure 4 and Figure 5 As shown, the lifting assembly includes a sliding lifting link 16 and an adjusting screw 21. A first chute 19 is provided on the first vibrating screen unloading chute 1, and specifically, the first chute 19 is provided on the side wall of the first vibrating screen unloading chute 1. The sliding lifting link 16 is inserted into the first chute 19 and is fixedly connected to the frame 11, so that the frame 11 is connected to the first vibrating screen unloading chute 1.

[0036] The adjusting screw 21 is threadedly connected to the sliding lifting link 16. Specifically, the sliding lifting link 16 is provided with a threaded ring 17. The adjusting screw 21 is connected in the threaded ring 17 to be threadedly connected to the sliding lifting link 16. In addition, the adjusting screw 21 is rotatably connected to the first vibrating screen unloading chute 1. Specifically, the adjusting screw 21 is penetrated on the bottom wall of the first vibrating screen unloading chute 1.

[0037] When the adjusting screw 21 rotates, the sliding lifting link 16 is lifted and lowered relative to the first vibrating screen unloading chute 1, so as to drive the frame 11 to be lifted and lowered relative to the first vibrating screen unloading chute 1. Specifically, one end of the adjusting screw 21 is threadedly connected to the sliding lifting link 16, and the other end of the adjusting screw 21 is provided with a rotating disk 22. In actual use, the rotating disk 22 can be rotated to drive the adjusting screw 21 to rotate.

[0038] As a possible implementation, the vibration mechanism further includes a first connection assembly, and the frame 11 is movably connected to the second vibration screen discharge chute 4 through the first connection assembly. Figure 4 and Figure 6 As shown, the first connection assembly includes a connection column 15 and a positioning portion 27. The connection column 15 is fixedly connected to the frame 11, and when the frame 11 rises to a first height relative to the first vibrating screen discharge chute 1, the connection column 15 can be inserted into the second vibrating screen discharge chute 4. Specifically, the connection column 15 is fixedly connected to the top wall of the frame 11, and a first positioning hole 28 is provided on the bottom wall of the second vibrating screen discharge chute 4, and the connection column 15 can be inserted into the second vibrating screen discharge chute 4 through the first positioning hole 28.

[0039] The positioning part 27 is movably connected to the second vibrating screen unloading chute 4. Specifically, a second positioning hole 33 is provided on the side wall of the second vibrating screen unloading chute 4, and the positioning part 27 is movably connected in the second positioning hole 33. The positioning part 27 can be movably connected to the connecting column 15. Specifically, a connecting hole 32 is provided on the connecting column 15, and the positioning part 27 is inserted in the connecting hole 32 to be connected to the connecting column 15.

[0040] In the specific implementation, Figure 7As shown, the positioning portion 27 includes a first movable link 271, a retaining ring 272, a first elastic member 273 and a stopper 274. The first movable link 271 is movably connected in the second positioning hole 33, and the first end of the first movable link 271 is used to connect with the connecting column 15. The retaining ring 272 and the stopper 274 are respectively fixedly connected to the first movable link 271 along the extension direction of the first movable link 271. One end of the first elastic member 273 abuts against the retaining ring 272, and the other end of the first elastic member 273 abuts against the side wall of the second vibrating screen unloading chute 4.

[0041] The second positioning hole 33 is provided with a clamping groove 30 and a through groove 29. When the first movable link 271 rotates to the first position, the stopper 274 is clamped in the clamping groove 30, and the first elastic member 273 is in a compressed state. When the first movable link 271 rotates to the second position, the stopper 274 is aligned with the through groove 29, and the first elastic member 273 drives the first movable link 271 to move relative to the second vibrating screen unloading chute 4, so that the first movable link 271 is connected to the connecting column 15. Specifically, a handle 275 is provided at the second end of the first movable link 271 to facilitate the rotation of the first movable link 271.

[0042] The above-mentioned embodiment illustrates that the frame 11 is connected to the first vibrating screen unloading chute 1 through a lifting assembly, and the frame 11 is connected to the second vibrating screen unloading chute 4 through a first connecting assembly, so that the frame 11 can be connected to the first vibrating screen unloading chute 1 and the second vibrating screen unloading chute 4 at the same time, and the vibrator 12 can drive the first vibrating screen unloading chute 1 and the second vibrating screen unloading chute 4 to vibrate at the same time. In actual application, when it is necessary to transport two materials of different sizes, such as when it is necessary to transport small blocks and large blocks or medium blocks, the small blocks can fall from the second silo 5 into the second vibrating screen unloading chute 4, and then fall into the first vibrating screen unloading chute 1, and the large blocks or medium blocks can fall from the first silo 3 into the first vibrating screen unloading chute 1, and the small blocks and the large blocks or medium blocks fall from the first vibrating screen unloading chute 1 into the quartz crucible 2 together, so as to realize the re-feeding of the two materials. Alternatively, when large material blocks need to be transported, in order to prevent the large material blocks from damaging the first vibrating screen discharge chute 1, small material blocks can be transported at the same time. At this time, the small material blocks can fall from the second material bin 5 into the second vibrating screen discharge chute 4, and then fall into the first vibrating screen discharge chute 1, and the large material blocks can fall from the first material bin 3 into the first vibrating screen discharge chute 1, and the small material blocks and the large material blocks fall from the first vibrating screen discharge chute 1 into the quartz crucible 2 together.

[0043] In other possible implementations, the vibration mechanism further includes a second connection assembly, and the frame 11 is movably connected to the first vibration screen unloading chute 1 through the second connection assembly. Figure 4 and Figure 5As shown, the second connecting assembly includes a second movable link 25, a fixed sleeve 24 and a second elastic member 23. A third positioning hole 34 is provided on the side wall of the first vibrating screen unloading chute 1, and the second movable link 25 is movably connected in the third positioning hole 34, and the first end of the second movable link 25 is used to connect with the frame 11. The fixed sleeve 24 is movably sleeved with the second end of the second movable link 25, and the fixed sleeve 24 is fixedly arranged in the first vibrating screen unloading chute 1. The second elastic member 23 is arranged in the fixed sleeve 24, and the second end of the second movable link 25 abuts against the second elastic member 23.

[0044] In a specific implementation, a fourth positioning hole 18 is provided on the side wall of the frame 11. When the frame 11 is lowered to a second height relative to the first vibrating screen discharge chute 1, the connecting column 15 is separated from the first positioning hole 28, that is, the frame 11 is separated from the second vibrating screen discharge chute 4. At this time, the fourth positioning hole 18 can be aligned with the third positioning hole 34, and the second movable connecting rod 25 can be inserted into the fourth positioning hole 18 to lock the frame 11 and the first vibrating screen discharge chute 1.

[0045] In a specific implementation, the second connecting assembly also includes a push rod 26. A second chute 20 is provided on the first vibrating screen unloading chute 1. Specifically, the second chute 20 is provided on the bottom wall of the first vibrating screen unloading chute 1. The push rod 26 is inserted into the second chute 20, and the push rod 26 is fixedly connected to the second movable link 25. When a thrust is applied to the push rod 26 in a direction away from the frame 11, the second movable link 25 moves together with the push rod 26, and the second elastic member 23 is compressed. When the thrust is withdrawn, the second movable link 25 can be inserted into the fourth positioning hole 18 under the drive of the second elastic member 23.

[0046] The above embodiment illustrates that the frame 11 is connected to the first vibrating screen unloading chute 1 through a lifting assembly, the frame 11 is disconnected from the second vibrating screen unloading chute 4, the frame 11 is locked with the first vibrating screen unloading chute 1 through the second connecting assembly, and the vibrator 12 can only drive the first vibrating screen unloading chute 1 to vibrate, thereby reducing energy consumption. In actual application, when small or medium blocks need to be transported, the small or medium blocks can fall from the first silo 3 into the first vibrating screen unloading chute 1, and then fall from the first vibrating screen unloading chute 1 into the quartz crucible 2.

[0047] Those skilled in the art should understand that the above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A re-feeding and transporting device for a single crystal furnace, characterized in that: It includes a first material transport mechanism, a second material transport mechanism and a vibration mechanism; The first material transport mechanism comprises a first material bin (3) and a first vibrating screen material discharge chute (1), wherein the first material bin (3) is fixedly arranged above the first vibrating screen material discharge chute (1); The second material transport mechanism comprises a second material bin (5) and a second vibrating screen material discharge chute (4), the second material bin (5) is fixedly arranged above the second vibrating screen material discharge chute (4), the second vibrating screen material discharge chute (4) is located above the first vibrating screen material discharge chute (1), and the first end of the second vibrating screen material discharge chute (4) is connected to the first end of the first vibrating screen material discharge chute (1); The vibration mechanism comprises a vibrator (12) and a frame (11), wherein the vibrator (12) is fixedly arranged in the frame (11), the frame (11) is movably connected to the first end of the first vibrating screen discharge chute (1), and the frame (11) is located below the second vibrating screen discharge chute (4), and the frame (11) is movably connected to the first end of the second vibrating screen discharge chute (4).

2. The re-feeding and transporting device for a single crystal furnace according to claim 1, characterized in that: The vibration mechanism further comprises a lifting assembly, and the frame (11) is movably connected to the first vibration screen unloading chute (1) via the lifting assembly; The lifting assembly comprises a sliding lifting connecting rod (16) and an adjusting screw (21); The first vibrating screen unloading chute (1) is provided with a first chute (19), the sliding lifting connecting rod (16) is inserted into the first chute (19) and is fixedly connected to the frame (11); The adjusting screw (21) is threadedly connected to the sliding lifting connecting rod (16) and is rotationally connected to the first vibrating screen discharge chute (1). When the adjusting screw (21) rotates, the sliding lifting connecting rod (16) is lifted or lowered relative to the first vibrating screen discharge chute (1), thereby driving the frame (11) to be lifted or lowered relative to the first vibrating screen discharge chute (1).

3. The re-feeding and transporting device for a single crystal furnace according to claim 1, characterized in that: The vibration mechanism further comprises a first connection assembly, and the frame (11) is movably connected to the second vibration screen unloading chute (4) via the first connection assembly; The first connecting assembly comprises a connecting column (15) and a positioning portion (27); The connecting column (15) is fixedly connected to the frame (11), and the connecting column (15) can be inserted into the second vibrating screen unloading chute (4); The positioning portion (27) is movably connected to the second vibrating screen unloading chute (4), and the positioning portion (27) can be movably connected to the connecting column (15).

4. The re-feeding and transporting device for a single crystal furnace according to claim 3, characterized in that: The connecting column (15) is fixedly connected to the top wall of the frame (11); A first positioning hole (28) is provided on the bottom wall of the second vibrating screen unloading chute (4), and the connecting column (15) can be inserted into the second vibrating screen unloading chute (4) through the first positioning hole (28).

5. The re-feeding and transporting device for a single crystal furnace according to claim 3 or 4, characterized in that: A second positioning hole (33) is provided on the side wall of the second vibrating screen unloading chute (4), and the positioning portion (27) is movably connected in the second positioning hole (33).

6. The re-feeding and transporting device for a single crystal furnace according to claim 5, characterized in that: The positioning portion (27) comprises a first movable link (271), a retaining ring (272), a first elastic member (273) and a retaining block (274); the first movable link (271) is movably connected in the second positioning hole (33), the retaining ring (272) and the retaining block (274) are respectively fixedly connected to the first movable link (271) along the extension direction of the first movable link (271); one end of the first elastic member (273) abuts against the retaining ring (272), and the other end of the first elastic member (273) abuts against the side wall of the second vibrating screen unloading chute (4); The second positioning hole (33) is provided with a snap-in groove (30) and a through groove (29); when the first movable link (271) rotates to the first position, the stopper (274) is snap-into the snap-in groove (30), and the first elastic member (273) is in a compressed state; when the first movable link (271) rotates to the second position, the stopper (274) is aligned with the through groove (29), and the first elastic member (273) drives the first movable link (271) to move relative to the second vibrating screen unloading chute (4), so that the first movable link (271) is connected to the connecting column (15).

7. The re-feeding and transporting device for a single crystal furnace according to claim 1, characterized in that: The vibration mechanism further comprises a second connection assembly, and the frame (11) is movably connected to the first vibration screen unloading chute (1) via the second connection assembly; The second connecting assembly comprises a second movable connecting rod (25), a fixed sleeve (24) and a second elastic member (23); a third positioning hole (34) is provided on the side wall of the first vibrating screen unloading chute (1), the second movable connecting rod (25) is movably connected in the third positioning hole (34), and the first end of the second movable connecting rod (25) is used to be connected to the frame (11); the fixed sleeve (24) is movably sleeved with the second end of the second movable connecting rod (25), and the fixed sleeve (24) is fixedly arranged in the first vibrating screen unloading chute (1); the second elastic member (23) is arranged in the fixed sleeve (24), and the second end of the second movable connecting rod (25) is abutted against the second elastic member (23).

8. The re-feeding and transporting device for a single crystal furnace according to claim 7, characterized in that: A fourth positioning hole (18) is provided on the side wall of the frame body (11), and the second movable connecting rod (25) can be inserted into the fourth positioning hole (18).

9. The re-feeding and transporting device for a single crystal furnace according to claim 7 or 8, characterized in that: The second connecting assembly also includes a push rod (26); The first vibrating screen unloading chute (1) is provided with a second chute (20), and the push rod (26) is inserted into the second chute (20) and fixedly connected to the second movable connecting rod (25).

10. The re-feeding and transporting device for a single crystal furnace according to claim 1, characterized in that: The second silo (5) is provided with a fixing ring (8) on the outer fixing sleeve, and a column (9) is fixedly connected to the fixing ring (8); The second vibrating screen unloading chute (4) is connected to the column (9) via an elastic structure (10).

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