Flange suitable for various re-feeding cylinders and re-feeding cylinder provided with flange

Abstract

The utility model provides a flange suitable for various re-feeding cylinders and a re-feeding cylinder with the flange, the flange is arranged to be capable of being sleeved on a re-feeding cylinder body, the flange comprises at least two flange bodies which are detachably connected, and the flange bodies are arranged along the circumferential direction of the re-feeding cylinder body. The utility model has the beneficial effects that an upper flange and a support rod are omitted, the structure of the re-feeding cylinder is simplified, the production cost is reduced, the flange is arranged into a splicing structure, the processing difficulty is reduced, the re-feeding cylinder is applicable to various re-feeding cylinders, the position of the flange on the re-feeding cylinder can be adjusted according to different single crystal furnaces, the occurrence of abnormity is avoided, and the production efficiency is improved. The normal operation of re-feeding is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of single crystal furnace equipment, and particularly relates to a flange applicable to multiple refeeding cylinders and a refeeding cylinder provided with the flange. Background Art

[0002] During the refeeding process of a single crystal furnace, a refeeding cylinder is required for refeeding. In the prior art, the refeeding cylinder includes a refeeding cylinder body, an upper flange is fixed at the top of the refeeding cylinder body, a lower flange is sleeved on the lower part of the refeeding body, and the upper flange and the lower flange are fixedly connected by a support rod. During refeeding, the lower flange is placed on the flange in the auxiliary chamber of the single crystal furnace to support the entire refeeding cylinder. Since the length of the support rod is fixed, the position of the lower flange on the refeeding cylinder body cannot be adjusted. When the refeeding cylinder is placed in different single crystal furnaces, the distance between the lower edge of the refeeding cylinder and the liquid surface cannot be adjusted. When the silicon material is put into the silicon liquid, it is easy to cause silicon splashing, the silicon material breaking the crucible, and abnormal situations such as umbrella burying during the refeeding process. Moreover, the lower flange is a whole design and needs to be fully adapted to the refeeding cylinder body, and cannot be applicable to multiple refeeding cylinders, and the processing accuracy requirements are relatively high. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a flange applicable to multiple refeeding cylinders and a refeeding cylinder provided with the flange, effectively solving the problems that the position of the lower flange of the refeeding cylinder cannot be adjusted and the processing accuracy requirements are relatively high, and overcoming the deficiencies of the prior art.

[0004] The technical solution adopted by the utility model is: a flange applicable to multiple refeeding cylinders is configured to be sleeved on the refeeding cylinder body, and includes at least two detachably connected flange bodies, and the flange bodies are arranged along the circumferential direction of the refeeding cylinder body.

[0005] Optionally, each flange body includes an upper section and a lower section integrally connected, the inner walls of the upper section and the lower section are adapted to the outer wall of the refeeding cylinder body, the outer wall of the upper section is inclined towards the central axis of the refeeding cylinder body, and the outer wall of the lower section is vertically arranged.

[0006] Optionally, first connection holes and second connection holes are respectively provided at the relative positions of two mutually connected flange bodies, a connecting member is provided on the first connection holes and the second connection holes, the connecting member is detachably connected to the first connection holes and the second connection holes, and the distance between the first connection holes and the second connection holes can be adjusted.

[0007] Optionally, the first connection holes and the second connection holes are arranged as stepped holes.

[0008] The utility model also provides a refeeding cylinder, which includes a refeeding cylinder body, and the refeeding cylinder body is provided with the flange applicable to multiple refeeding cylinders as described above.

[0009] Optionally, an anti-slip pad is provided between the flange and the re-injection cylinder body, and the anti-slip pad is detachably connected to the re-injection cylinder body.

[0010] Optionally, a first fastener is provided outside the anti-slip pad, and the first fastener detachably connects the anti-slip pad to the re-injection cylinder body.

[0011] Optionally, a positioning pad is provided on the upper part of the flange, and the positioning pad is disposed on the outer wall of the re-injection cylinder body and is detachably connected to the re-injection cylinder.

[0012] Optionally, a second fastener is provided outside the positioning pad, and the second fastener detachably connects the positioning pad to the re-injection cylinder body.

[0013] Optionally, the thickness of the positioning pad is greater than the thickness of the anti-slip pad.

[0014] The advantages and positive effects of the present utility model are as follows: By adopting the above technical solution, the upper flange and the support rod are omitted, the structure of the re-injection cylinder is simplified, the production cost is reduced, the flange is set as a splicing structure, the processing difficulty is reduced, it can be applied to various re-injection cylinders, and the position of the flange on the re-injection cylinder can be adjusted according to different single crystal furnaces, avoiding abnormal occurrences, ensuring the normal progress of re-injection, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall structural schematic diagram of a re-injection cylinder according to an embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram of flange connection applicable to various re-injection cylinders according to an embodiment of the present utility model.

[0017] Figure 3 is a schematic diagram of the flange body structure applicable to various re-injection cylinders according to an embodiment of the present utility model.

[0018] In the figure:

[0019] 10. Flange 11. First flange body 12. Second flange body

[0020] 13. Upper section 14. Lower section 15. First connection hole

[0021] 16. Second connection hole 17. Connector 20. Re-injection cylinder body

[0022] 30. Anti-slip pad 40. First fastener 50. Positioning pad

[0023] 60. Second fastener 70. Re-injection cylinder cover 80. Molybdenum rod

[0024] 90, Quartz umbrella Detailed implementation manner

[0025] An embodiment of the present utility model provides a flange applicable to multiple refeeding cylinders and a refeeding cylinder provided with the flange. The embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0026] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] As Figures 1-3 shown, a flange applicable to multiple refeeding cylinders in an embodiment of the present utility model is configured to be sleeved on the refeeding cylinder body 20. The flange 10 includes at least two detachably connected flange bodies, and each flange body is arranged along the circumferential direction of the refeeding cylinder body. The flange 10 is set into a detachable splicing structure, so that the flange 10 of the present utility model can be installed on different refeeding cylinder bodies. During refeeding, the flange 10 is placed at the throat of the secondary chamber of the single crystal furnace to support the entire refeeding cylinder. Since the flange bodies are detachably connected, the position of the flange 10 composed of the flange bodies on the refeeding cylinder body can be adjusted arbitrarily. According to different single crystal furnaces, the flange 10 is moved up and down along the refeeding cylinder body 20, so as to adjust the distance between the lower edge of the refeeding cylinder and the liquid surface according to the actual working conditions, avoid abnormalities, and ensure normal refeeding.

[0028] In this embodiment, preferably, it includes a first flange body 11 and a second flange body 12 which are oppositely arranged. The first flange body 11 and the second flange body 12 are detachably connected and sleeved outside the refeeding cylinder body 20.

[0029] Preferably, as Figures 2-3As shown in the figure, each of the flange bodies includes an upper section 13 and a lower section 14 which are integrally connected. The inner walls of the upper section 13 and the lower section 14 are adapted to the outer wall of the refeeding cylinder body 20. The outer wall of the lower section 14 is vertically arranged. In order to prevent the upper section 13 of the flange 10 from engaging with the inner wall of the secondary chamber of the single crystal furnace when the refeeding cylinder is lifted, the outer wall of the upper section 13 is inclined towards the central axis of the refeeding cylinder body 20, and the inclination angle is not limited.

[0030] Specifically, a first connection hole 15 and a second connection hole 16 are respectively provided at the relative positions of two mutually connected flange bodies. A connecting member 17 is provided on the first connection hole 15 and the second connection hole 16. The connecting member 17 is detachably connected to the first connection hole 15 and the second connection hole 16, so as to fasten the flange 10 composed of multiple flange bodies on the refeeding cylinder body 20. The distance between the first connection hole 16 and the second connection hole 17 can be adjusted. By adjusting the distance between the first connection hole 16 and the second connection hole 17, the inner diameter of the flange 10 can be adjusted, so as to be applicable to refeeding cylinders of different sizes. Preferably, the first connection hole 15 and the second connection hole 16 are respectively arranged on the lower section 14 of the mutually connected flange bodies. The connecting member 17 is set as a bolt-nut assembly. By adjusting the position of the nut on the bolt, the distance between the first connection hole 16 and the second connection hole 17 can be adjusted, so as to adapt to refeeding cylinders of different sizes.

[0031] Preferably, in order to facilitate the placement and assembly of the connecting member 17, the first connection hole 15 and the second connection hole 16 can be set as stepped holes.

[0032] Preferably, in order to avoid damaging the outer wall of the refeeding cylinder body 20, the material of the flange body is tetrafluoro material.

[0033] A refeeding cylinder, as Figure 1 shown, includes a refeeding cylinder body 20. The refeeding cylinder body 20 is of a cylindrical structure with openings at both ends, and is used for containing refeeding materials. The upper end is the inlet end for loading materials, and the lower end is the outlet end for feeding materials. The material of the refeeding cylinder body 20 is preferably quartz material to reduce the introduction of other impurities during the crystal pulling process. A refeeding cylinder cover 70 is provided at the upper end, i.e., the inlet end of the refeeding cylinder body 20. A molybdenum rod 80 passes through the refeeding cylinder cover 70 and is arranged inside the refeeding cylinder body 20, and can move up and down along the height of the refeeding cylinder body 20. A quartz umbrella 90 is provided at the bottom of the molybdenum rod 80 for blocking the lower end, i.e., the discharging end of the refeeding cylinder. The above-mentioned flange 10 is provided on the refeeding cylinder body 20, and the flange 10 is sleeved outside the refeeding cylinder body 20 and is detachably connected to the refeeding cylinder body 20.

[0034] Preferably, in order to prevent the flange 10 from sliding along the outer wall of the refeeding tube body 20, an anti-slip pad 30 is provided between the flange 10 and the refeeding tube body 20, and the anti-slip pad 30 is detachably connected to the refeeding tube body 20. The material of the anti-slip pad 30 is not limited. Preferably, the material of the anti-slip pad 30 is tetrafluoro material. The anti-slip pad 30 wraps around the outer wall of the refeeding tube body 20, and the flange 10 wraps around the outside of the anti-slip pad 30.

[0035] Specifically, in order to facilitate the fixing of the anti-slip pad 30, a first fastener 40 is provided outside the anti-slip pad 30 to detachably connect the anti-slip pad 30 and the refeeding tube body 20.

[0036] Preferably, the first fastener 40 is set as a hoop, and the hoop wraps around the outside of the anti-slip pad 30 to fix the anti-slip pad 30 on the refeeding tube body 20. The number of hoops is not limited.

[0037] Preferably, in order not to affect the installation of the flange 10, the height of the anti-slip pad 30 needs to be greater than the height of the flange 10, and the hoop fixes the anti-slip pad 30 at a position not covered by the flange 10. In some embodiments, the top of the anti-slip pad 30 is higher than the top of the flange 10, and the bottom of the anti-slip pad 30 is lower than the bottom of the flange 10, that is, the anti-slip pad 30 extends beyond the edge of the flange 10 both above and below the flange 10, and the hoop is arranged on the part where the anti-slip pad 30 extends beyond the flange 10, and such an arrangement will not affect the installation of the flange 10.

[0038] Preferably, in order to further position the flange 10 and prevent the flange 10 from moving along the refeeding tube during support, a positioning pad 50 is provided on the upper part of the flange 10. The positioning pad 50 is arranged on the outer wall of the refeeding tube and is detachably connected to the refeeding tube. The positioning pad 50 wraps around the outer wall of the refeeding tube, and when the flange 10 and the anti-slip pad 30 slide upward along the outer wall of the refeeding tube, the flange 10 and the anti-slip pad 30 can be clamped. Preferably, the material of the positioning pad 50 is tetrafluoro material.

[0039] Specifically, in order to facilitate the fixing of the positioning pad 50, a second fastener 60 is provided on the positioning pad 50, and the second fastener 60 detachably connects the positioning pad 50 and the refeeding tube body 20.

[0040] Preferably, the second fastener 60 is set as a hoop, and the hoop wraps around the outside of the positioning pad 50 to fix the positioning pad 50 on the refeeding tube body 20. The number of hoops is not limited.

[0041] Specifically, in order to enable the positioning pad 50 to clamp both the anti-slip pad 30 and the flange 10, the thickness of the positioning pad 50 needs to be greater than the thickness of the anti-slip pad 30.

[0042] Embodiment: A flange applicable to multiple refeeding cylinders is arranged on the refeeding cylinder body 20. It includes a first flange body 11 and a second flange body 12 arranged opposite to each other. The first flange body 11 and the second flange body 12 are detachably connected, sleeved outside the refeeding cylinder body 20, and can move along the refeeding cylinder body 20. Both the first flange body 11 and the second flange body 12 include an upper section 13 and a lower section 14 integrally connected. The inner walls of the upper section 13 and the lower section 14 are adapted to the outer wall of the refeeding cylinder body 20. The outer wall of the upper section 13 is inclined near the central axis of the refeeding cylinder body 20, and the outer wall of the lower section 14 is vertically arranged. First connection holes 15 and second connection holes 16 are respectively provided at the relative positions of the lower sections 14 of the first flange body 11 and the second flange body 12. A connecting member 17 is provided on the first connection hole 15 and the second connection hole 16. The connecting member 17 is detachably connected to the first connection hole 15 and the second connection hole 16, and fastens the first flange body 11 and the second flange body 12 to the refeeding cylinder body 20. In this embodiment, the connecting member 17 is a bolt-nut assembly. Both the first connection hole 15 and the second connection hole 16 are stepped holes. Both the first flange body 11 and the second flange body 12 are made of tetrafluoro material.

[0043] A refeeding cylinder includes a refeeding cylinder body 20. The refeeding cylinder body 20 is a cylindrical structure with openings at both ends. The upper end is the inlet end for loading materials, and the lower end is the outlet end for feeding materials. The material of the refeeding cylinder body 20 is quartz material. A refeeding cylinder cover 70 is arranged at the upper end (i.e., the inlet end) of the refeeding cylinder body 20. A molybdenum rod 80 passes through the refeeding cylinder cover 70 and is arranged inside the refeeding cylinder body 20, and can move up and down along the height of the refeeding cylinder body 20. A quartz umbrella 90 is provided at the bottom of the molybdenum rod 80 for blocking the lower end (i.e., the discharging end) of the refeeding cylinder. The above-mentioned flange 10 is arranged on the refeeding cylinder body 20. The flange 10 is sleeved outside the refeeding cylinder body 20 and is detachably connected to the refeeding cylinder body 20. An anti-slip pad 30 is provided between the flange 10 and the refeeding cylinder body 20. The anti-slip pad 30 wraps around the outer wall of the refeeding cylinder body 20. The height of the anti-slip pad 30 is greater than the height of the flange 10. The anti-slip pad 30 extends beyond the edge of the flange 10 both above and below the flange 10. A first fastener 40 is provided outside the part where the anti-slip pad 30 extends beyond the flange 10 to fix the anti-slip pad 30 on the refeeding cylinder body 20. A positioning pad 50 is provided above the flange 10. The positioning pad 50 is arranged on the outer wall of the refeeding cylinder and is detachably connected to the refeeding cylinder. The positioning pad 50 wraps around the outer wall of the refeeding cylinder. A second fastener 60 is provided outside the positioning pad 50. The thickness of the positioning pad 50 is greater than the thickness of the anti-slip pad 30. In this embodiment, both the anti-slip pad 30 and the positioning pad 50 are made of tetrafluoro material. The first fastener 40 and the second fastener 60 are specifically hoop.

[0044] The advantages and positive effects of the present utility model are:

[0045] (1) The refeeding cylinder omits the upper flange and the support rod, simplifies the structure, reduces the production cost, and shortens the production cycle;

[0046] (2) The flange is set as a splicing structure, which reduces the processing difficulty and can be applied to various refeeding cylinders;

[0047] (3) The position of the flange on the refeeding cylinder can be adjusted according to different single crystal furnaces, effectively avoiding abnormal situations such as silicon splashing, silicon material breaking the crucible, and umbrella burying during the refeeding process, ensuring the normal progress of refeeding, and improving the production efficiency.

[0048] The above has described the embodiments of the present utility model in detail, but the described content is only the preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A flange applicable to a variety of re-investment cylinders, which is configured to be sleeved on the re-investment cylinder body, characterized in that: It comprises at least two detachably connected flange bodies, wherein the flange bodies are arranged along the circumference of the re-investment tube body, and each of the flange bodies comprises an upper section and a lower section which are integrally connected, the inner walls of the upper section and the lower section are adapted to the outer wall of the re-investment tube body, the outer wall of the upper section is inclined close to the central axis of the re-investment tube body, and the outer wall of the lower section is vertically arranged, and the relative positions of the two mutually connected flange bodies are respectively provided with a first connecting hole and a second connecting hole, and the first connecting hole and the second connecting hole are provided with a connecting piece, the connecting piece is detachably connected to the first connecting hole and the second connecting hole, and the distance between the first connecting hole and the second connecting hole can be adjusted.

2. A flange applicable to multiple re-casting tubes according to claim 1, characterized in that: The first connection hole and the second connection hole are configured as stepped holes.

3. A multiple-shot barrel, characterized in that: It comprises a re-throwing cylinder body, on which is provided a flange applicable to a variety of re-throwing cylinders as claimed in claim 1 or 2.

4. A multiple-shot cartridge according to claim 3, characterized in that: An anti-skid pad is provided between the flange and the re-investment tube body, and the anti-skid pad is detachably connected to the re-investment tube body.

5. A multiple-shot cartridge according to claim 4, characterized in that: A first fastener is disposed outside the anti-slip pad, and the first fastener detachably connects the anti-slip pad to the re-throw tube body.

6. A multiple-shot cartridge according to claim 4 or 5, characterized in that: A positioning pad is provided on the upper part of the flange, and the positioning pad is arranged on the outer wall of the re-injection tube body and is detachably connected to the re-injection tube.

7. A multiple-shot cartridge according to claim 6, characterized in that: A second fastener is disposed outside the positioning pad, and the second fastener detachably connects the positioning pad to the re-injection tube body.

8. A multiple-shot cartridge according to claim 7, characterized in that: The thickness of the positioning pad is greater than the thickness of the anti-slip pad.

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