Efficient feeding device for single crystal furnace

Abstract

The utility model discloses an efficient feeding device for a single crystal furnace, which particularly relates to the technical field of feeding of single crystal furnaces and mainly comprises a feeding flange pipe, a sealing positioning column is inserted into the feeding flange pipe in a sliding manner, and a switching feeding mechanism is mounted in the sealing positioning column; the switching feeding assembly comprises a speed reduction rotating motor installed in the sealing positioning column, the output end of the speed reduction rotating motor is in coaxial transmission connection with a conveying auger, and a feeding pipe fixedly connected with the sealing positioning column is arranged on the outer wall of the conveying auger. By arranging the switching feeding mechanism, the driving motor is started to drive the linkage screw rod to rotate forwards in the guide frame plate, after the sealing positioning column and the feeding flange pipe are separated, the angle rotating motor is started to drive the rotating shaft to rotate by 180 degrees, manual extrusion and conveying of placed materials are not needed, electric switching spiral discharging is achieved, and the working efficiency is improved. And more time and labor are saved during feeding, and efficient feeding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnace charging, and more specifically, to a high-efficiency charging device for a single crystal furnace. Background Art

[0002] The original single crystal furnace feeding system was isolated by a rotary valve and fed using a barrel. 100 kg of material was added each time, and the maximum capacity of the pot was 500 kg. Five additions were required, resulting in low feeding efficiency. This required the use of a single crystal furnace high-efficiency feeding device to achieve the feeding operation.

[0003] In the existing published technical literature, the utility model patent with Chinese patent announcement number CN207512306U discloses a single crystal furnace charging device with a movable protective sleeve. The patent controls the speed of single crystal charging by pressing the guide rod up and down to adjust the height of the cylinder, thereby improving its practical performance. In addition, the design has the advantages of simple structure, easy manufacturing, practicality and high efficiency. However, the single crystal furnace charging device still has the following problems:

[0004] When the single crystal furnace feeding device adds raw materials into the single crystal furnace, the materials need to be placed manually in the sub-chamber and pressed down manually. This requires manual operation when placing and transporting the materials. The pressing process is more time-consuming and labor-intensive, and it is difficult to achieve efficient feeding. Therefore, a single crystal furnace efficient feeding device is needed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-efficiency feeding device for a single crystal furnace.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-efficiency feeding device for a single crystal furnace, comprising a feeding flange pipe, a sealing positioning column is slidably inserted inside the feeding flange pipe, and a switching feeding mechanism is installed inside the sealing positioning column;

[0007] The switching feeding mechanism includes a reduction rotating motor installed inside the sealing positioning column, and the output end of the reduction rotating motor is coaxially connected to a conveying auger, the outer wall of the conveying auger is provided with a feeding pipe fixedly connected to the sealing positioning column, a rotating shaft is welded to the bottom end of the outer wall of the feeding pipe, and an angle rotating motor is coaxially connected to the bottom end of the rotating shaft, the bottom end of the angle rotating motor is fixedly connected to a threaded sleeve slider, the internal thread of the threaded sleeve slider is connected to a linkage screw, and a drive motor is coaxially installed on one end of the linkage screw.

[0008] Preferably, the sealing positioning column is fixedly connected to the reduction rotating motor and the feeding pipe respectively, the vertical cross-sectional area of ​​one end of the sealing positioning column is smaller than the vertical cross-sectional area of ​​the other end, the outer wall of the conveying auger is rotatably connected to the inner wall of the feeding pipe, and the inner wall of the feeding pipe is polished and ground.

[0009] Preferably, the outer wall of the threaded sleeve slider is slidably connected to a guide frame plate, and a single crystal furnace body is installed on one end of the guide frame plate, the guide frame plate and the feeding flange pipe are fixedly connected to the single crystal furnace body, and a switch is installed in front of the guide frame plate, and the switch is fixed to the guide frame plate by hot melt adhesive.

[0010] In the above technical scheme, when feeding is needed inside the single crystal furnace body, the switch starts the driving motor to drive the linkage screw to rotate forward inside the guide frame plate, the linkage screw drives the threaded sleeve slider to move the angle rotation motor to the right, and the sealing positioning column moves to the right from the inside of the feeding flange tube. After the sealing positioning column is separated from the feeding flange tube, the angle rotation motor is started to drive the rotating shaft to rotate one hundred and eighty degrees, and the driving motor is continued to be started to drive the linkage screw to reverse inside the guide frame plate. After the rotating shaft drives the feeding tube to be inserted into the feeding flange tube, the reduction rotation motor is started to drive the conveying auger to rotate inside the feeding tube. The conveying auger can transport the material to the inside of the single crystal furnace body to realize feeding.

[0011] Preferably, the top of the feeding pipe is fixedly connected to a feeding pipe, and the top of the feeding pipe is welded to a feeding hopper, the inner walls of the feeding hopper and the feeding pipe are polished, and an extrusion sealing assembly is provided on one side of the feeding pipe;

[0012] The extrusion sealing assembly includes an extrusion support ring arranged on one side of the feed pipe, and a sealing ring is bonded and fixed to one side of the extrusion support ring. The other side of the feed pipe is provided with a support ring fixedly connected to the sealing positioning column, and a supporting sealing ring is bonded and fixed to one side of the support ring. The extrusion support ring and the sealing ring are both fixedly connected to the feeding pipe, and the sealing ring and the supporting sealing ring are both made of rubber material.

[0013] In the above technical solution, the sealing positioning column exerts an extrusion effect on the support ring, and the support ring exerts an extrusion effect on the support sealing ring, so that the feeding flange pipe can be sealed when no feeding is required. After the feeding pipe is inserted into the feeding flange pipe, the feeding pipe drives the extrusion support ring to be squeezed on the sealing ring, and the sealing ring is squeezed on the end of the feeding flange pipe, thereby reducing the outflow of heat from the inside of the feeding flange pipe.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting the switching feeding mechanism, the driving motor is started to drive the linkage screw to rotate forward inside the guide frame plate. After the sealing positioning column and the feeding flange pipe are separated, the angle rotation motor is started to drive the rotating shaft to rotate 180 degrees. After the rotating shaft drives the feeding pipe to be inserted into the feeding flange pipe, there is no need for manual extrusion and conveying of materials. The electric switching spiral feeding is realized, which saves time and effort in feeding and realizes efficient feeding.

[0016] 2. By using the extrusion sealing component, the support ring is squeezed by the sealing positioning column. The support sealing ring can be squeezed on the end of the feeding flange pipe to achieve sealing. When feeding, after the feeding pipe is inserted into the feeding flange pipe, the feeding pipe drives the extrusion support ring to be squeezed on the sealing ring. The sealing ring is squeezed on the end of the feeding flange pipe to reduce the outflow of heat from the feeding flange pipe. The heat loss can be reduced both when not feeding and when feeding, and the energy saving and environmental protection are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the main stereoscopic structure of a high-efficiency charging device for a single crystal furnace provided by the utility model.

[0018] Figure 2 The utility model is a schematic diagram of a vertical cross-section stereoscopic structure of a single crystal furnace high-efficiency charging device.

[0019] Figure 3 The utility model is a schematic diagram of the top plan structure of a high-efficiency charging device for a single crystal furnace.

[0020] Figure 4 The utility model is a schematic diagram of the local three-dimensional structure of the connection between the feeding pipe and the extrusion support ring in a single crystal furnace high-efficiency feeding device.

[0021] The accompanying drawings are marked as follows: 1. feeding flange pipe; 2. sealing positioning column; 3. reduction rotating motor; 4. conveying auger; 5. feeding pipe; 6. rotating shaft; 7. angle rotating motor; 8. threaded sleeve slider; 9. linkage screw; 10. driving motor; 11. guide frame plate; 12. single crystal furnace body; 13. switch; 14. feeding pipe; 15. extrusion support ring; 16. sealing ring; 17. support ring; 18. support sealing ring; 19. feeding hopper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-4 A single crystal furnace high-efficiency charging device is shown, and a switching charging mechanism is provided on the single crystal furnace high-efficiency charging device. The specific structure of the switching charging mechanism is set as follows:

[0024] In some embodiments, as shown in the attached Figure 1-2 As shown, the switching feeding mechanism includes a reduction rotary motor 3 installed inside the sealing positioning column 2, and the output end of the reduction rotary motor 3 is coaxially connected to a conveying auger 4, the outer wall of the conveying auger 4 is provided with a feeding pipe 5 fixedly connected to the sealing positioning column 2, a rotating shaft 6 is welded to the bottom end of the outer wall of the feeding pipe 5, an angle rotary motor 7 is coaxially connected to the bottom end of the rotating shaft 6, a threaded sleeve slider 8 is fixedly connected to the bottom end of the angle rotary motor 7, the internal thread of the threaded sleeve slider 8 is connected to a linkage screw 9, and a drive motor 10 is coaxially installed at one end of the linkage screw 9;

[0025] The operating principle of the high-efficiency feeding device for a single crystal furnace in this embodiment is that when no raw material needs to be added to the inside of the single crystal furnace body 12, the sealing positioning column 2 is inserted into the inside of the feeding flange tube 1 to seal the inside of the feeding flange tube 1. When the inside of the single crystal furnace body 12 needs to be fed, the switch 13 starts the driving motor 10 to drive the linkage screw 9 to rotate forward inside the guide frame plate 11. At the same time, the driving motor 10 is fixedly connected to the guide frame plate 11, and the linkage screw 9 drives the threaded sleeve slider 8 to move the angle rotating motor 7 to the right. The angle rotating motor 7 drives the rotating shaft 6 to make the feeding tube 5 drive the sealing positioning column 2 to move to the right. The sealing positioning column 2 moves right from the inside of the feeding flange tube 1. After the sealing positioning column 2 is separated from the feeding flange tube 1, the angle rotating motor 7 is started to drive The movable rotating shaft 6 rotates one hundred and eighty degrees, and the rotating shaft 6 drives the feeding tube 5 to rotate and align the right side of the feeding flange tube 1. The driving motor 10 is continued to be started to drive the linkage screw 9 to reverse inside the guide frame plate 11, so that the threaded sleeve slider 8 moves to the left along the inside of the guide frame plate 11 under the action of the thread. The threaded sleeve slider 8 drives the angle rotation motor 7 to move the rotating shaft 6 to the left. After the rotating shaft 6 drives the feeding tube 5 to be inserted into the inside of the feeding flange tube 1, the material inside the feed hopper 19 and the feed tube 14 is filled, so as to start the reduction rotating motor 3 to drive the conveying auger 4 to rotate inside the feeding tube 5. The conveying auger 4 can convey the material to the inside of the feeding flange tube 1, and enter the inside of the single crystal furnace body 12 through the feeding flange tube 1 to realize feeding.

[0026] In some embodiments, as shown in the attached Figure 1-3As shown, the outer wall of the threaded sleeve slider 8 is slidably connected to a guide frame plate 11, and a single crystal furnace body 12 is installed at one end of the guide frame plate 11, and the guide frame plate 11 and the feeding flange tube 1 are fixedly connected to the single crystal furnace body 12, so that the linkage screw 9 can rotate forward inside the guide frame plate 11, which can ensure the stable rotation of the linkage screw 9, and the single crystal furnace body 12 supports the guide frame plate 11, and further improves the stability of the guide frame plate 11. A switch 13 is installed in front of the guide frame plate 11, and the switch 13 is fixed to the guide frame plate 11 by hot melt adhesive, so that the switch 13 starts the drive motor 10 to drive the linkage screw 9 to rotate forward inside the guide frame plate 11, which is convenient for driving the drive motor 10 to transmit.

[0027] In some embodiments, as shown in the attached Figure 2-4 As shown, the top of the feeding pipe 5 is fixedly connected to the feeding pipe 14, and the top of the feeding pipe 14 is welded to the feeding hopper 19, the inner walls of the feeding hopper 19 and the feeding pipe 14 are polished, and an extrusion sealing assembly is provided on one side of the feeding pipe 14;

[0028] The extrusion sealing assembly includes an extrusion support ring 15 arranged on one side of the feed pipe 14, and a sealing ring 16 is bonded and fixed to one side of the extrusion support ring 15, and a support ring 17 fixedly connected to the sealing positioning column 2 is provided on the other side of the feed pipe 14, and a support sealing ring 18 is bonded and fixed to one side of the support ring 17, the extrusion support ring 15 and the sealing ring 16 are both fixedly connected to the feed pipe 5, and the sealing ring 16 and the support sealing ring 18 are both made of rubber material;

[0029] According to the upper structure, when no material is needed, the sealing positioning column 2 exerts an extrusion effect on the support ring 17, and the support ring 17 exerts an extrusion effect on the support sealing ring 18. The support sealing ring 18 can be squeezed on the end of the feeding flange pipe 1 to achieve sealing, and the feeding flange pipe 1 can be sealed when no material is needed. When feeding, after the feeding pipe 5 is inserted into the feeding flange pipe 1, the feeding pipe 5 drives the extrusion support ring 15 to be squeezed on the sealing ring 16, and the sealing ring 16 is squeezed on the end of the feeding flange pipe 1, and the edge between the feeding flange pipe 1 and the feeding pipe 5 can be sealed and locked, and a sealing effect can be played when feeding the inside of the feeding flange pipe 1, thereby reducing the outflow of heat from the inside of the feeding flange pipe 1.

[0030] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-efficiency feeding device for a single crystal furnace, comprising a feeding flange pipe (1), wherein a sealing positioning column (2) is slidably inserted into the inside of the feeding flange pipe (1), characterized in that: A switching feeding mechanism is installed inside the sealing positioning column (2); The switching feeding mechanism comprises a reduction rotating motor (3) installed inside the sealing positioning column (2), and the output end of the reduction rotating motor (3) is coaxially connected to a conveying auger (4), the outer wall of the conveying auger (4) is provided with a feeding pipe (5) fixedly connected to the sealing positioning column (2), a rotating shaft (6) is welded to the bottom end of the outer wall of the feeding pipe (5), an angle rotating motor (7) is coaxially connected to the bottom end of the rotating shaft (6), the bottom end of the angle rotating motor (7) is fixedly connected to a threaded sleeve slider (8), the inner thread of the threaded sleeve slider (8) is connected to a linkage screw (9), and a drive motor (10) is coaxially installed at one end of the linkage screw (9).

2. The high-efficiency feeding device for a single crystal furnace according to claim 1, characterized in that: The sealing positioning column (2) is fixedly connected to the reduction rotating motor (3) and the feeding pipe (5) respectively, and the vertical cross-sectional area of ​​one end of the sealing positioning column (2) is smaller than the vertical cross-sectional area of ​​the other end thereof.

3. The high-efficiency feeding device for a single crystal furnace according to claim 1, characterized in that: The outer wall of the conveying auger (4) is rotatably connected to the inner wall of the feeding pipe (5), and the inner wall of the feeding pipe (5) is polished and ground.

4. The high-efficiency feeding device for a single crystal furnace according to claim 1, characterized in that: The outer wall of the threaded sleeve sliding block (8) is slidably connected to a guide frame plate (11), and a single crystal furnace body (12) is mounted on one end of the guide frame plate (11), and the guide frame plate (11) and the feeding flange pipe (1) are both fixedly connected to the single crystal furnace body (12).

5. The high-efficiency feeding device for a single crystal furnace according to claim 4, characterized in that: A switch (13) is installed in front of the guide frame plate (11), and the switch (13) is fixed to the guide frame plate (11) by hot melt adhesive.

6. The high-efficiency feeding device for a single crystal furnace according to claim 1, characterized in that: The top end of the feeding pipe (5) is fixedly connected to a feeding pipe (14), and the top end of the feeding pipe (14) is welded to a feeding hopper (19), the inner walls of the feeding hopper (19) and the feeding pipe (14) are polished, and an extrusion sealing assembly is provided on one side of the feeding pipe (14); The extrusion sealing assembly comprises an extrusion support ring (15) arranged on one side of a feed pipe (14), and a sealing ring (16) is bonded and fixed to one side of the extrusion support ring (15); a support ring (17) fixedly connected to a sealing positioning column (2) is provided on the other side of the feed pipe (14), and a support sealing ring (18) is bonded and fixed to one side of the support ring (17).

7. The high-efficiency feeding device for a single crystal furnace according to claim 6, characterized in that: The extrusion support ring (15) and the sealing ring (16) are both fixedly connected to the feeding pipe (5), and the sealing ring (16) and the supporting sealing ring (18) are both made of rubber material.

Images