Sagger forming die

Abstract

The utility model relates to the technical field of sagger manufacturing, in particular to a sagger forming die. Comprising an inner mold and an outer mold, the outer mold comprises a plurality of sections and a bottom section, the sections are detachably connected and form side walls, connected end to end, on the outer mold, one end of each section is detachably connected with the bottom section, the other end of each section is detachably connected with the inner mold, and the inner mold, the sections and the bottom section form a glue injection cavity matched with the prefabricated saggar; the inner mold is located on the inner side of the outer mold, a glue injection opening and a glue discharging opening which are connected with the glue injection cavity and the outside are formed in the inner mold, and the glue discharging opening is located at the top end of the inner mold. Glue injection can be carried out through the glue injection port, exhaust and glue discharge can be carried out through the glue discharge port, when the prefabricated sagger for glue injection is taken down, the prefabricated sagger can be separated from the outer mold by detaching the split petals and the bottom petals, and then the prefabricated sagger can be conveniently obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of sagger manufacturing, and particularly relates to a sagger forming die. Background Art

[0002] Negative electrode materials need to use saggers in the carbonization process. When manufacturing saggers, considering production costs and production efficiency, a forming die is generally used for mold opening, and at the same time, the strength of the sagger is ensured.

[0003] However, both the inner die and the outer die in the existing forming die are integrally formed. After injecting glue and demolding, a prefabricated sagger is obtained. However, when demolding, the injected glue is easily adhered to the outer die, and it is not convenient to obtain the prefabricated sagger. Summary of the Utility Model

[0004] Therefore, the utility model aims to overcome the technical problems to be solved in the prior art, and thus provides a sagger forming die.

[0005] The utility model provides a sagger forming die, including:

[0006] An inner die, which is integrally formed;

[0007] An outer die, the outer die includes a plurality of split petals and a bottom petal. The split petals are detachably connected to each other and form the side walls of the outer die that are connected end to end. One end of the split petal is detachably connected to the bottom petal, and the other end of the split petal is detachably connected to the inner die. The inner die, the split petals, and the bottom petal form a glue injection cavity adapted to the prefabricated sagger;

[0008] The inner die is located inside the outer die, and a glue injection port and a glue discharge port for connecting the glue injection cavity and the outside are provided on the inner die. The glue discharge port is located at the top of the inner die.

[0009] Further, the inner die includes:

[0010] An inner tank wall, provided with an upward opening. The inner tank wall is located inside the split petals and the bottom petal, and the glue injection port is provided on the inner tank wall;

[0011] A connecting plate, arranged at the edge position of the opening of the inner tank wall. The split petal is detachably connected to the connecting plate, and the glue discharge port is provided on the connecting plate.

[0012] Further, the split petal includes:

[0013] An outer tank wall, arranged at the outside position of the inner tank wall;

[0014] The first connecting wall is respectively arranged at two end sides of the outer tank wall and on the same side of the inner tank wall on the connecting plate. Two adjacent outer tank walls are detachably connected through the first connecting wall, so that the outer tank walls form the side walls of the outer mold that are connected end to end;

[0015] The second connecting wall is arranged at the outer edge position of the first connecting wall near one end of the connecting plate, and the second connecting wall is detachably connected to the connecting plate;

[0016] The third connecting wall is arranged at the inner edge position of the first connecting wall far from the second connecting wall, and there is a detachable connection between the bottom flap and the third connecting wall;

[0017] The inner tank wall, the outer tank wall, the third connecting wall and the bottom flap form a glue injection cavity adapted to the prefabricated casket.

[0018] Furthermore, a diversion surface and a first abutting surface are arranged on the connecting plate. The diversion surface is on the same side as the inner tank wall and is arranged at the outer edge position of the inner tank wall. The diversion surface is the top surface of the glue injection cavity. The first abutting surface is arranged on one side of the diversion surface far from the inner tank wall. A diversion groove is arranged between the diversion surface and the first abutting surface, and the diversion groove is communicated with the glue discharge port;

[0019] The top end of the outer tank wall is provided with a second abutting surface, the second abutting surface abuts against the first abutting surface, and there is a gap between the second abutting surface and the diversion surface.

[0020] Furthermore, a demolding agent is sprayed on the outer surface of the inner tank wall.

[0021] Furthermore, the inner tank wall is provided with a demolding angle, and the angle is 0.3° - 0.7°.

[0022] Furthermore, a needle-punched preform is arranged in the glue injection cavity.

[0023] Furthermore, between two adjacent first connecting walls, between the second connecting wall and the connecting plate, and between the bottom flap and the third connecting wall are all connected by bolts;

[0024] The abutting surfaces of two adjacent first connecting walls, the first abutting surface and the second abutting surface, and the abutting surfaces of the bottom flap and the third connecting wall are respectively provided with sealing grooves and sealing strips, and the sealing strips are arranged in the sealing grooves.

[0025] Furthermore, the bottom surface of the bottom flap is flush with the bottom surface of the split part.

[0026] The technical solution of the present utility model has the following advantages:

[0027] A mold for forming a sagger provided by the present utility model can be injected with glue through a glue injection port, and exhausted and degummed through a degumming port. When removing the prefabricated sagger after injection, the prefabricated sagger can be separated from the outer mold by disassembling the split petals and the bottom petal, thereby facilitating the acquisition of the prefabricated sagger.

[0028] A mold for forming a sagger provided by the present utility model, wherein the inner liner wall and the connecting plate are integrated, and the connecting plate can be detachably connected to the outer mold, so that the inner liner wall and the outer mold are detachably connected.

[0029] A mold for forming a sagger provided by the present utility model, a plurality of outer liner walls form a ring through the first connecting wall, and one side facing the inner liner wall forms a part of the glue injection cavity. When obtaining the prefabricated sagger, the second connecting wall is disassembled from the connecting plate, the third connecting wall and the bottom petal are disassembled, and then the inner liner wall is taken out to obtain the prefabricated sagger. The outer mold is composed of detachable parts, so the outer mold can be disassembled separately to prevent the problem that the prefabricated sagger after injection cannot be separated from the outer mold.

[0030] A mold for forming a sagger provided by the present utility model, there is a gap between the second abutting surface and the diversion surface, and the glue injection cavity is connected to the diversion groove through the gap, so that the glue injected in the glue injection cavity can enter the diversion groove along the gap between the second abutting surface and the diversion surface, and then enter the degumming port, completing the exhaust and degumming of the injected glue, and making the injected glue fully poured into the glue injection cavity.

[0031] A mold for forming a sagger provided by the present utility model, the outer surface of the inner liner wall is sprayed with a mold release agent, which can prevent the prefabricated sagger from adhering to the inner liner wall and facilitate the removal of the inner liner wall from the prefabricated sagger.

[0032] A mold for forming a sagger provided by the present utility model, the inner liner wall is provided with a demolding angle of 0.3° - 0.7°, which can facilitate demolding and facilitate the removal of the inner liner wall from the prefabricated sagger.

[0033] A mold for forming a sagger provided by the present utility model, the needle-punched preform is arranged in the glue injection cavity, which can ensure the strength of the obtained prefabricated sagger.

[0034] A mold for forming a sagger provided by the present utility model, the adjacent two first connecting walls, between the second connecting wall and the connecting plate, and between the bottom petal and the third connecting wall are all connected by bolts, which can facilitate the assembly and disassembly of the outer mold.

[0035] The sealing groove can limit the sealing strip, and the abutting surface abuts against the sealing strip, which can make the abutting surface have good sealing performance and prevent the injected glue from flowing out through the gap.

[0036] A mold for forming a sagger provided by the present utility model, the bottom surface of the bottom petal is flush with the bottom surface of the split petal, so that the bottom surface of the outer mold is a plane, which can facilitate the placement of the outer mold. Description of the Drawings

[0037] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 Structural schematic diagram of the present invention;

[0039] Figure 2 Schematic diagram of the position of the bottom flap of the present invention;

[0040] Figure 3 Schematic diagram of the position of the glue injection cavity of the present invention;

[0041] Figure 4 Schematic diagram of the position of the flow guiding surface of the present invention;

[0042] Figure 5 First structural schematic diagram of the split of the present invention;

[0043] Figure 6 Second structural schematic diagram of the split of the present invention;

[0044] Figure 7 Structural schematic diagram of the inner mold of the present invention.

[0045] Explanation of the reference numerals in the drawings;

[0046] 1. Inner mold; 2. Outer mold; 3. Split; 4. Bottom flap; 5. Glue injection cavity; 6. Glue injection port; 7. Glue discharge port; 8. Inner tank wall; 9. Connecting plate; 10. Outer tank wall; 11. First connecting wall; 12. Second connecting wall; 13. Third connecting wall; 14. Flow guiding surface; 15. First abutting surface; 16. Second abutting surface; 17. Flow guiding groove. Detailed Description of the Invention

[0047] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the 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 addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" 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 a mechanical connection or an electrical 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 circumstances.

[0050] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0051] Embodiment

[0052] As Figures 1 to 7 shown in a specific embodiment of a sagger forming mold, the sagger forming mold includes:

[0053] The inner mold 1 is integral.

[0054] The outer mold 2, the outer mold 2 includes several split petals 3 and a bottom petal 4. The split petals 3 are detachably connected to each other and form the side walls of the outer mold 2 that are connected end to end. One end of the split petal 3 is detachably connected to the bottom petal 4, and the other end of the split petal 3 is detachably connected to the inner mold 1. The inner mold 1, the split petals 3 and the bottom petal 4 form a glue injection cavity 5 that is adapted to the prefabricated sagger. Among them, the number of split petals 3 can be two, three or four, etc. In this embodiment, four can be selected, but this embodiment is not limited thereto. It should be noted that after the split petals 3 are connected end to end to form a ring, there are two openings. One opening is connected to the inner mold 1, and the other opening is connected to the bottom petal 4. The glue injection cavity 5 is adapted to the shape of the prefabricated sagger, so that the prefabricated sagger can be obtained by injecting glue.

[0055] The inner mold 1 is located inside the outer mold 2, and the inner mold 1 is provided with a glue injection port 6 and a glue discharge port 7 that connect the glue injection cavity 5 and the outside. The glue discharge port 7 is located at the top of the inner mold 1.

[0056] Glue can be injected through the glue injection port 6, and air and glue can be exhausted through the glue discharge port 7. When removing the prefabricated crucible for glue injection, the prefabricated crucible can be detached from the outer mold 2 by disassembling the split petals 3 and the bottom petal 4, thereby facilitating the acquisition of the prefabricated crucible.

[0057] Furthermore, the inner mold 1 includes:

[0058] The inner tank wall 8 is provided with an upward opening. The inner tank wall 8 is located inside the split petals 3 and the bottom petal 4, and the glue injection port 6 is provided on the inner tank wall 8. Among them, the upward opening of the inner tank wall 8 can conveniently accommodate the glue injection barrel for injecting glue into the glue injection port 6, and the glue injection port 6 can be set at the bottom end position of the inner tank wall 8. It should be noted that the injected glue can be a resin slurry, which is composed of a mixture of phenolic resin, carbon powder, and diluent. The ratio of phenolic resin to carbon powder is between 7:3 and 9:1, and the viscosity of the resin mixture at 25°C - 35°C is ensured to be 200 - 300 mpas by adding diluent. To ensure that the resin slurry can fully infiltrate the needle-punched preform, the injection pressure process of the glue injection barrel can be 0.2 MPa for 2 hours, 0.5 MPa for 2 hours, and 0.8 MPa for 2 hours.

[0059] The connecting plate 9 is arranged at the edge position of the opening of the inner tank wall 8. The split petals 3 are detachably connected to the connecting plate 9, and the glue discharge port 7 is arranged on the connecting plate 9. During demolding, the inner tank wall 8 can be conveniently removed from the prefabricated crucible through the connecting plate 9.

[0060] The inner tank wall 8 and the connecting plate 9 are integrated, and the connecting plate 9 can be detachably connected to the outer mold 2, so that the inner tank wall 8 and the outer mold 2 are detachably connected.

[0061] Furthermore, the split petals 3 include:

[0062] The outer tank wall 10 is arranged outside the inner tank wall 8;

[0063] The first connecting wall 11 is provided at both end sides of the outer tank wall 10 respectively, and is on the same side of the inner tank wall 8 on the connecting plate 9. Two adjacent outer tank walls 10 are detachably connected through the first connecting wall 11, so that the outer tank walls 10 form the side walls that are connected end to end on the outer mold 2;

[0064] The second connecting wall 12 is arranged at the outer edge position of the first connecting wall 11 near the connecting plate 9, and the second connecting wall 12 is detachably connected to the connecting plate 9;

[0065] The third connecting wall 13 is arranged at the inner edge position of the first connecting wall 11 far from the second connecting wall 12, and the bottom petal 4 is detachably connected to the third connecting wall 13;

[0066] The inner liner wall 8, the outer liner wall 10, the third connecting wall 13 and the bottom flap 4 form a glue injection cavity 5 adapted to the prefabricated sagger.

[0067] A plurality of outer liner walls 10 form a ring through the first connecting wall 11, and the side facing the inner liner wall 8 forms a part of the glue injection cavity 5 with the inner liner wall 8. When obtaining the prefabricated sagger, the second connecting wall 12 is disassembled from the connecting plate 9, the third connecting wall 13 and the bottom flap 4 are disassembled, and then the inner liner wall 8 is taken out to obtain the prefabricated sagger. The outer mold 2 is composed of detachable parts, so the outer mold 2 can be disassembled separately to prevent the problem that the prefabricated sagger with glue injection cannot be separated from the outer mold 2.

[0068] Further, a flow guiding surface 14 and a first abutting surface 15 are provided on the connecting plate 9. The flow guiding surface 14 is on the same side as the inner liner wall 8 and is arranged at the outer edge position of the inner liner wall 8. The flow guiding surface 14 is the top surface of the glue injection cavity 5. The first abutting surface 15 is arranged on the side of the flow guiding surface 14 away from the inner liner wall 8. A flow guiding groove 17 is arranged between the flow guiding surface 14 and the first abutting surface 15, and the flow guiding groove 17 is communicated with the glue discharge port 7;

[0069] A second abutting surface 16 is arranged at the top end of the outer liner wall 10. The second abutting surface 16 abuts against the first abutting surface 15, and there is a gap between the second abutting surface 16 and the flow guiding surface 14.

[0070] There is a gap between the second abutting surface 16 and the flow guiding surface 14. The glue injection cavity 5 is communicated with the flow guiding groove 17 through the gap, so that the glue injection in the glue injection cavity 5 can enter the flow guiding groove 17 along the gap between the second abutting surface 16 and the flow guiding surface 14, and then enter the glue discharge port 7, completing the exhaust and glue discharge of the glue injection, and enabling the glue injection to be fully poured into the glue injection cavity 5.

[0071] Further, a release agent is sprayed on the outer surface of the inner liner wall 8. It can prevent the prefabricated sagger from adhering to the inner liner wall 8 and facilitate the removal of the inner liner wall 8 from the prefabricated sagger.

[0072] Further, the inner liner wall 8 is provided with a demoulding angle, and the angle is 0.3° - 0.7°. It can facilitate demoulding and facilitate the removal of the inner liner wall 8 from the prefabricated sagger. Considering the shrinkage effect during the subsequent carbonization process of the prefabricated sagger, the thickness h of the glue injection cavity 5 formed by the combination of the inner and outer molds 2 = T + T * 5%, where T is the wall thickness of the finished sagger.

[0073] Further, a needled preform is disposed in the glue injection cavity 5. The needled preform is disposed in the glue injection cavity 5, which can ensure the strength of the obtained preform sagger. The needled preform can be prepared by needling carbon fiber non-woven fabric and web stock, and the fabric-to-stock ratio can be 3.2:1 or 4:1, and the needling density is 15-20 needles / cm2. Ensure that the density of the preform sagger is 0.45 g ± 0.015 g / cm3, and the wall thickness of the preform sagger is designed according to the actual product thickness, and the wall thickness H = T + T * 5% - 15%, where T is the wall thickness of the finished sagger.

[0074] Further, between two adjacent first connecting walls 11, between the second connecting wall 12 and the connecting plate 9, and between the bottom flap 4 and the third connecting wall 13 are all connected by bolts, which facilitates the assembly and disassembly of the outer mold 2;

[0075] Sealing grooves 18 and sealing strips are respectively disposed on the abutting surfaces of two adjacent first connecting walls 11, the first abutting surface 15 and the second abutting surface 16, and the abutting surface between the bottom flap 4 and the third connecting wall 13, and the sealing strips are disposed in the sealing grooves 18. The abutting surface abuts against the sealing strip, which can make the abutting surface have good sealing performance and prevent the glue injection from flowing out of the gap.

[0076] Further, the bottom surface of the bottom flap 4 is flush with the bottom surface of the split flap 3, so that the bottom surface of the outer mold 2 is a plane, which facilitates the placement of the outer mold 2.

[0077] It should be noted that the mold after glue injection can be placed in an oven for heating and curing. Since phenolic resin will release small molecule gases during the curing process, in order to avoid pore defects in the product caused by too fast reaction, it is necessary to heat up slowly, and the heating rate is between 0.5 °C / min and 1 °C / min. At the same time, keep warm for 60 to 120 minutes at 100 °C, 130 °C, 150 °C, and 180 °C respectively.

[0078] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A sagger forming mold, characterized in that: include: The inner mold (1) is a one-piece type; An outer mold (2), the outer mold (2) comprising a plurality of petals (3) and a bottom petal (4), the petals (3) being detachably connected to each other and constituting a side wall connected end to end on the outer mold (2), one end of the petal (3) being detachably connected to the bottom petal (4), the other end of the petal (3) being detachably connected to the inner mold (1), the inner mold (1), the petals (3) and the bottom petal (4) forming a glue injection cavity (5) adapted to the prefabricated sagger; The inner mold (1) is located inside the outer mold (2), and the inner mold (1) is provided with a glue injection port (6) and a glue discharge port (7) connecting the glue injection cavity (5) and the outside, and the glue discharge port (7) is located at the top of the inner mold (1).

2. The sagger forming mold according to claim 1, characterized in that: The inner mold (1) comprises: The inner liner wall (8) is provided with an upward opening, the inner liner wall (8) is located at the inner side of the petal (3) and the bottom petal (4), and the glue injection port (6) is arranged on the inner liner wall (8); A connecting plate (9) is arranged at the edge of the opening of the inner liner wall (8); the petals (3) are detachably connected to the connecting plate (9); and the glue discharge port (7) is arranged on the connecting plate (9).

3. The sagger forming mold according to claim 2, characterized in that: The petals (3) include: An outer liner wall (10) is arranged outside the inner liner wall (8); The first connecting walls (11) are two first connecting walls (11) respectively arranged at two end sides of the outer bladder wall (10) and located on the same side of the inner bladder wall (8) on the connecting plate (9). The two adjacent outer bladder walls (10) are detachably connected via the first connecting walls (11), so that the outer bladder walls (10) constitute the side walls connected end to end on the outer mold (2); A second connecting wall (12) is arranged on the first connecting wall (11) at an outer edge position close to one end of the connecting plate (9), and the second connecting wall (12) is detachably connected to the connecting plate (9); A third connecting wall (13) is arranged on the first connecting wall (11) at an inner edge position away from the second connecting wall (12), and the bottom flap (4) and the third connecting wall (13) are detachably connected; The inner liner wall (8), the outer liner wall (10), the third connecting wall (13) and the bottom flap (4) form a glue injection cavity (5) that is compatible with the prefabricated sagger.

4. The sagger forming mold according to claim 3, characterized in that: The connecting plate (9) is provided with a flow guide surface (14) and a first abutting surface (15); the flow guide surface (14) is on the same side as the inner liner wall (8) and is arranged at the outer edge of the inner liner wall (8); the flow guide surface (14) is the top surface of the glue injection cavity (5); the first abutting surface (15) is arranged on the side of the flow guide surface (14) away from the inner liner wall (8); a flow guide groove (17) is provided between the flow guide surface (14) and the first abutting surface (15); and the flow guide groove (17) is connected to the glue discharge port (7); A second abutting surface (16) is provided at the top end of the outer bladder wall (10); the second abutting surface (16) abuts against the first abutting surface (15); and a gap is provided between the second abutting surface (16) and the flow guide surface (14).

5. The sagger forming mold according to claim 2, characterized in that: The outer surface of the inner container wall (8) is sprayed with a release agent.

6. The sagger forming mold according to claim 2, characterized in that: The inner container wall (8) is provided with a demoulding angle, the angle being 0.3°-0.7°.

7. The sagger forming mold according to claim 1, characterized in that: A needle-punched preform is arranged in the glue injection cavity (5).

8. The sagger forming mold according to claim 4, characterized in that: Two adjacent first connecting walls (11), the second connecting wall (12) and the connecting plate (9), and the bottom flap (4) and the third connecting wall (13) are all connected by bolts; The abutting surfaces of two adjacent first connecting walls (11), the first abutting surface (15) and the second abutting surface (16), and the abutting surfaces of the bottom flap (4) and the third connecting wall (13) are respectively provided with a sealing groove (18) and a sealing strip, and the sealing strip is arranged in the sealing groove (18).

9. The sagger forming mold according to claim 1, characterized in that: The bottom surface of the bottom petal (4) is flush with the bottom surface of the sub-petal (3).

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