Die of quartz crucible

Abstract

The utility model relates to the technical field of crucibles, and discloses a quartz crucible mould, which comprises an inner mould and an outer mould arranged on the outer side of the inner mould, the outer mould comprises two groups of half outer moulds, the bottom of the inner wall of the inner mould is fixedly connected with a fixed column, the middle part of the outer surface of the fixed column is fixedly connected with a fixed ring, and the fixed ring is fixedly connected with the outer mould. The outer surface of the inner mold is slidably sleeved with a lower pressing ring. According to the mold of the quartz crucible, the lower pressing ring, the inner mold, the mounting plate and the pressing rod are used in cooperation, so that after quartz raw materials are filled, a worker can place the lower pressing ring between the inner mold and the outer mold, in the process that the mounting plate is pressed downwards, the pressing rod extrudes the lower pressing ring downwards, and the lower pressing ring extrudes the quartz raw materials on the side edge of the crucible downwards; therefore, the overall density of the quartz crucible is further improved, the probability that bubble cavities appear on the side edges of the quartz crucible is reduced, and the production quality of the quartz crucible is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crucibles, in particular to a mold of a quartz crucible. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by methods such as blow molding, injection molding, extrusion or forging, smelting, etc. In short, molds are tools used to shape objects. This tool is composed of various parts, and different molds are composed of different parts. Quartz crucibles are consumables in the polysilicon ingot casting process. With the explosive growth of the photovoltaic market, the demand for crucibles is also increasing. At the same time, the size of the crucible is also getting larger and larger. Crucible molds are needed in the production and manufacturing of quartz crucibles; but existing quartz crucibles usually concentrate the downward pressure on the bottom of the mold, and the side lacks longitudinal compaction pressure. After such quartz crucibles are fired, the density of the bottom is higher, and bubble cavities are prone to appear on the side of the quartz crucible, and the manufacturing performance of the quartz crucible is poor. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a mold for a quartz crucible, which solves the problems raised in the above background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for a quartz crucible, comprising an inner mold and an outer mold arranged on the outside of the inner mold, the outer mold comprising two groups of semi-outer molds, the bottom of the inner wall of the inner mold is fixedly connected with a fixing column, the middle part of the outer surface of the fixing column is fixedly connected with a fixing ring, the outer surface of the inner mold is slidably mounted with a lower pressure ring, the left and right sides of the upper surface of the lower pressure ring are fixedly connected with a connecting plate, the lower surface of the connecting plate is fixedly connected with two groups of positioning rods, the outer surface of the rods is slidably mounted with two groups of positioning blocks, the positioning blocks are fixedly connected to the semi-outer mold, the top of the outer surface of the fixing column is slidably mounted with a sliding sleeve, the lower surface of the sliding sleeve is fixedly connected with a compression spring, the top of the sliding sleeve is fixedly connected with a mounting plate, the lower surface of the mounting plate is inserted with four groups of mounting bolts, and the lower surface of the mounting plate is fixedly connected with four groups of pressure rods.

[0007] Preferably, four groups of rectangular slide bars are fixedly connected to the outer surface of the inner mold, and a rectangular slide groove matching the rectangular slide bars is formed on the inner wall of the lower pressure ring.

[0008] Preferably, the lower surface of the pressure rod is provided with an inclined chamfer, and the upper surface of the lower pressure ring is provided with an inclined groove matched with the inclined chamfer.

[0009] Preferably, four groups of reinforcing ribs are fixedly connected to the lower surface of the fixing ring, and the inner side surfaces of the reinforcing ribs are fixedly connected to the outer surface of the fixing column.

[0010] Preferably, a docking strip is fixedly connected to the front side of the half outer mold located at the rear side, and a docking groove matched with the docking strip is provided on the back side of the half outer mold located at the front side.

[0011] Preferably, four groups of inclined support rods are fixedly connected to the outer surface of the sliding sleeve, and the top ends of the inclined support rods are fixedly connected to the lower surface of the mounting plate.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a mold for a quartz crucible, which has the following beneficial effects:

[0014] 1. The mold of the quartz crucible is used in combination with a lower pressure ring, an inner mold, a mounting plate and a pressure rod, so that after filling the quartz raw material, the staff can place the lower pressure ring between the inner mold and the outer mold. When the mounting plate is pressed down, the pressure rod presses the lower pressure ring downward, and the lower pressure ring presses the quartz raw material on the side of the crucible downward, thereby compacting the quartz raw material on the side, thereby further improving the overall density of the quartz crucible, reducing the probability of bubble cavities on the side of the quartz crucible, and further improving the production quality of the quartz crucible.

[0015] 2. The mold of the quartz crucible is used in combination with a semi-outer mold, an insert rod and a positioning block, so that in the process of placing the lower pressure ring, the insert rod is inserted into the positioning block, and the insert rod fixes the two sets of semi-outer molds through the positioning block. When the quartz crucible is fired, the insert rod and the lower pressure ring are taken out upwards to separate the two sets of semi-outer molds, and then the quartz crucible can be taken out, thereby further facilitating the demoulding work of the quartz crucible by the staff and facilitating the operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 , Figure 3 , Figure 4 It is a schematic diagram of the structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model.

[0019] In the figure: 1. inner mold; 2. outer mold; 201. semi-outer mold; 3. fixing column; 4. fixing ring; 5. lower pressure ring; 6. connecting plate; 7. plug rod; 8. positioning block; 9. sliding sleeve; 10. compression spring; 11. mounting plate; 12. mounting bolt; 13. pressure rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 The utility model provides a technical solution: a mold for a quartz crucible, comprising an inner mold 1 and an outer mold 2 arranged on the outer side of the inner mold 1, the outer mold 2 comprising two groups of semi-outer molds 201, a fixing column 3 is fixedly connected to the bottom of the inner wall of the inner mold 1, a fixing ring 4 is fixedly connected to the middle part of the outer surface of the fixing column 3, a lower pressure ring 5 is slidably mounted on the outer surface of the inner mold 1, a connecting plate 6 is fixedly connected to the left and right sides of the upper surface of the lower pressure ring 5, two groups of positioning plug rods 7 are fixedly connected to the lower surface of the connecting plate 6, two groups of positioning blocks 8 are slidably mounted on the outer surface of the plug rod 7, the positioning block 8 is fixedly connected to the semi-outer mold 201, a sliding sleeve 9 is slidably mounted on the top of the outer surface of the fixing column 3, a compression spring 10 is fixedly connected to the lower surface of the sliding sleeve 9, a mounting plate 11 is fixedly connected to the top of the sliding sleeve 9, four groups of mounting bolts 12 are inserted on the lower surface of the mounting plate 11, and four groups of pressure rods 13 are fixedly connected to the lower surface of the mounting plate 11, through the lower pressure ring 5, the inner mold 1, and the mounting The mounting plate 11 and the pressure rod 13 are used together, so that after filling the quartz raw material, the staff can place the lower pressure ring 5 between the inner mold 1 and the outer mold 2. During the process of pressing down the mounting plate 11, the pressure rod 13 presses the lower pressure ring 5 downward, and the lower pressure ring 5 presses the quartz raw material on the side of the crucible downward, thereby compacting the quartz raw material on the side, thereby further improving the overall density of the quartz crucible, reducing the probability of bubble cavities appearing on the side of the quartz crucible, and further improving the production quality of the quartz crucible. By using the semi-outer mold 201, the insertion rod 7 and the positioning block 8 together, during the process of placing the lower pressure ring 5, the insertion rod 7 is inserted into the positioning block 8, and the insertion rod 7 fixes the two groups of semi-outer molds 201 through the positioning block 8. When the quartz crucible is fired, the insertion rod 7 and the lower pressure ring 5 are taken out upward to separate the two groups of semi-outer molds 201, and then the quartz crucible can be taken out, thereby further facilitating the demoulding work of the quartz crucible by the staff and facilitating the operation of the staff.

[0022] In the utility model, in order to further enhance the stability of the movement of the lower pressure ring 5, four groups of rectangular slide bars are fixedly connected to the outer surface of the inner mold 1, and a rectangular slide groove matched with the rectangular slide bar is opened on the inner wall of the lower pressure ring 5. The rectangular slide bar cooperates with the rectangular slide groove, thereby further enhancing the stability of the movement of the lower pressure ring 5.

[0023] In the utility model, in order to further enhance the stability of the pressure rod 13 under extrusion of the lower pressure ring 5, an inclined chamfer is provided on the lower surface of the pressure rod 13, and an inclined groove matched with the inclined chamfer is provided on the upper surface of the lower pressure ring 5. The inclined chamfer and the inclined groove cooperate with each other, thereby further enhancing the stability of the pressure rod 13 under extrusion of the lower pressure ring 5.

[0024] In the utility model, in order to further enhance the stability of the support of the fixing ring 4, four groups of reinforcing ribs are fixedly connected to the lower surface of the fixing ring 4, and the inner side of the reinforcing ribs is fixedly connected to the outer surface of the fixing column 3, so that the reinforcing ribs play a role of stabilizing support for the fixing ring 4, thereby further enhancing the stability of the support of the fixing ring 4.

[0025] In the utility model, in order to further enhance the stability of the docking of the two groups of semi-external molds 201, a docking strip is fixedly connected to the front side of the semi-external mold 201 located on the rear side, and a docking groove matched with the docking strip is provided on the back side of the semi-external mold 201 located on the front side. The docking strip cooperates with the docking groove, thereby further enhancing the stability of the docking of the two groups of semi-external molds 201.

[0026] In the utility model, in order to further enhance the stability of the installation of the sliding sleeve 9, four groups of inclined support rods are fixedly connected to the outer surface of the sliding sleeve 9, and the top ends of the inclined support rods are fixedly connected to the lower surface of the mounting plate 11, so that the inclined support rods play a role of stabilizing support for the sliding sleeve 9, thereby further enhancing the stability of the installation of the sliding sleeve 9.

[0027] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0028] When in use, the two sets of half outer molds 201 are butted together, the mounting plate 11 is mounted on the output end of the hydraulic press by means of the mounting bolts 12, a certain amount of quartz raw material is placed in the outer mold 2, the inner mold 1 is placed in the outer mold 2, the quartz raw material is again filled between the inner mold 1 and the outer mold 2, the lower pressing ring 5 is placed between the inner mold 1 and the outer mold 2, the insert rod 7 is inserted into the positioning block 8, the insert rod 7 fixes the two sets of half outer molds 201 through the positioning block 8, the fixing column 3 is coaxial with the sliding sleeve 9, the mounting plate 11 is pressed down by the hydraulic press, and the mounting plate 1 1 drives the sliding sleeve 9, the compression spring 10 and the compression rod 13 to move downward, the sliding sleeve 9 is sleeved on the outside of the fixed column 3, the compression spring 10 presses down the fixed ring 4, the fixed ring 4 presses down the inner mold 1 through the fixed column 3, and then compacts the bottom of the quartz mold, and at the same time the compression rod 13 presses down the lower pressure ring 5, the lower pressure ring 5 presses down and compacts the quartz raw material on the side of the crucible, lifts the mounting plate 11, places the outer mold 2 in the sintering furnace, takes it out and cools it after firing, takes out the insertion rod 7 and the lower pressure ring 5 upward, separates the two sets of half outer molds 201, and then takes out the quartz crucible.

[0029] In summary, the mold of the quartz crucible is used in combination with the lower pressure ring 5, the inner mold 1, the mounting plate 11 and the pressure rod 13, so that after filling the quartz raw material, the staff can place the lower pressure ring 5 between the inner mold 1 and the outer mold 2. During the downward pressing of the mounting plate 11, the pressure rod 13 presses the lower pressure ring 5 downward, and the lower pressure ring 5 presses the quartz raw material on the side of the crucible downward, thereby compacting the quartz raw material on the side, thereby further improving the overall density of the quartz crucible, reducing the probability of bubble cavities appearing on the side of the quartz crucible, and further improving the production quality of the quartz crucible.

[0030] The mold of the quartz crucible is used in combination with a semi-outer mold 201, an insert rod 7 and a positioning block 8, so that in the process of placing the lower pressure ring 5, the insert rod 7 is inserted into the positioning block 8, and the insert rod 7 fixes the two groups of semi-outer molds 201 through the positioning block 8. When the quartz crucible is fired, the insert rod 7 and the lower pressure ring 5 are taken out upwards, the two groups of semi-outer molds 201 are separated, and then the quartz crucible can be taken out, thereby further facilitating the demoulding work of the quartz crucible by the staff and facilitating the operation of the staff.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for a quartz crucible, comprising an inner mold (1) and an outer mold (2) arranged outside the inner mold (1), characterized in that: The outer mold (2) comprises two groups of half outer molds (201), the bottom of the inner wall of the inner mold (1) is fixedly connected with a fixing column (3), the middle of the outer surface of the fixing column (3) is fixedly connected with a fixing ring (4), the outer surface of the inner mold (1) is slidably covered with a lower pressure ring (5), the left and right sides of the upper surface of the lower pressure ring (5) are fixedly connected with connecting plates (6), the lower surface of the connecting plate (6) is fixedly connected with two groups of positioning rods (7), the outer surface of the rods (7) is slidably connected to the inner surface of the inner mold (1), and the lower surface of the rods (7) is fixedly connected with the fixing column (3). The movable sleeve is provided with two groups of positioning blocks (8), the positioning blocks (8) are fixedly connected to the half outer mold (201), the top of the outer surface of the fixed column (3) is slidably provided with a sliding sleeve (9), the lower surface of the sliding sleeve (9) is fixedly connected with a compression spring (10), the top of the sliding sleeve (9) is fixedly connected with a mounting plate (11), the lower surface of the mounting plate (11) is inserted with four groups of mounting bolts (12), and the lower surface of the mounting plate (11) is fixedly connected with four groups of compression rods (13).

2. The mold for a quartz crucible according to claim 1, characterized in that: Four groups of rectangular slide bars are fixedly connected to the outer surface of the inner mold (1), and a rectangular slide groove matching the rectangular slide bars is opened on the inner wall of the lower pressure ring (5).

3. The mold for a quartz crucible according to claim 1, characterized in that: The lower surface of the pressure rod (13) is provided with an inclined chamfer, and the upper surface of the lower pressure ring (5) is provided with an inclined groove matched with the inclined chamfer.

4. The mold for a quartz crucible according to claim 1, characterized in that: Four groups of reinforcing ribs are fixedly connected to the lower surface of the fixing ring (4), and the inner side surfaces of the reinforcing ribs are fixedly connected to the outer surface of the fixing column (3).

5. The mold for a quartz crucible according to claim 1, characterized in that: The front side of the semi-external mold (201) located at the rear side is fixedly connected with a docking strip, and the back side of the semi-external mold (201) located at the front side is provided with a docking groove matched with the docking strip.

6. The mold for a quartz crucible according to claim 1, characterized in that: Four groups of inclined support rods are fixedly connected to the outer surface of the sliding sleeve (9), and the top ends of the inclined support rods are fixedly connected to the lower surface of the mounting plate (11).

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