A quick-assembly mold structure for epoxy casting insulation platform

Abstract

This utility model relates to a quick-assembly mold structure for an epoxy casting insulation platform, comprising an upper support plate and a lower support plate distributed vertically, and an injection molding assembly located between the upper and lower support plates. The injection molding assembly includes a mold frame and multiple injection mold cores. The mold frame is detachably fixed to the upper and lower support plates. Each injection mold core includes an outer cylinder and an inner cylinder coaxially arranged. The outer cylinder is fixed to the mold frame, and its upper and lower ends are respectively sealed to the upper and lower support plates. The upper end of the inner cylinder is fixed to the upper support plate, and its lower end is sealed to the lower support plate. An annular mold cavity is formed between the outer and inner cylinders. The top surface of the upper support plate is provided with a casting groove, and the casting groove has multiple casting holes, each of which connects to the mold cavity of an injection mold core. This utility model uses the mold frame to fix the outer cylinder and the upper support plate to fix the inner cylinder, making mold loading and unmolding operations simple and convenient, greatly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of epoxy insulation platform production technology, specifically to a quick-assembly mold structure for epoxy casting insulation platforms. Background Technology

[0002] Epoxy insulating bases serve as insulation and support components in switchgear, and are used in large quantities as important components in high-voltage switchgear. Epoxy insulating bases are produced by pouring epoxy resin into a production mold and then allowing it to cure. Existing mold structures require the individual installation and removal of numerous inserts during molding and demolding, resulting in cumbersome operations, low molding efficiency, and challenges to the production, maintenance, and quality improvement of insulating components. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a quick-assembly mold structure for epoxy casting insulation platforms. The mold assembly and demolding operations are simple and convenient, greatly improving production efficiency.

[0004] This utility model is achieved through the following technical solution: a quick-assembly mold structure for an epoxy casting insulation platform, comprising an upper support plate and a lower support plate distributed vertically, and an injection molding assembly located between the upper and lower support plates. The injection molding assembly includes a mold frame and multiple injection mold cores. The mold frame is detachably fixed to the upper and lower support plates. Each injection mold core includes an outer cylinder and an inner cylinder arranged coaxially. The outer cylinder is fixed to the mold frame, and its upper and lower ends are respectively sealed to the upper and lower support plates. The upper end of the inner cylinder is fixed to the upper support plate, and its lower end is sealed to the lower support plate. An annular mold cavity is formed between the outer cylinder and the inner cylinder. The top surface of the upper support plate is provided with a casting groove, and the casting groove is provided with multiple casting holes, each casting hole connecting to the mold cavity of an injection mold core.

[0005] This injection molding assembly uses a mold frame to fix the outer cylinder and an upper support plate to fix the inner cylinder. The upper support plate is fixed to the upper end of the mold frame, allowing the inner cylinder to be inserted into the outer cylinder to form a mold cavity. A lower support plate is fixed to the lower end of the mold frame, sealing the lower end of the mold cavity. Epoxy resin is injected into the mold cavity through the pouring hole for curing, resulting in the insulating platform. During demolding, the upper support plate is separated from the mold frame, and the upper support plate pulls the inner cylinder and insulating platform out of the outer cylinder, achieving product separation. Compared to existing technologies, this significantly improves disassembly efficiency and greatly enhances production efficiency.

[0006] As an optimization, the mold frame includes a top plate and a bottom plate distributed vertically, and multiple connecting rods. The upper and lower ends of the connecting rods are fixedly connected to the top plate and the bottom plate, respectively. The upper and lower ends of the outer cylinder are fixedly connected to the top plate and the bottom plate, respectively, and penetrate through the top and bottom plates. This optimized solution connects and fixes the top plate and the bottom plate through the connecting rods, making the mold frame a single unit. By connecting the upper and lower ends of the outer cylinder to the top plate and the bottom plate, the outer cylinder and the mold frame are fixedly connected. Since the upper and lower ends of the outer cylinder penetrate through the top plate and the bottom plate, communication with the outside is achieved, and the inner cavity of the outer cylinder is sealed through the upper support plate and the lower support plate.

[0007] As an optimization, the top plate is fixed to the upper support plate with bolts, and the bottom plate is fixed to the lower support plate with bolts. This optimized solution facilitates the installation and disassembly of the upper and lower support plates.

[0008] As an optimization, a pry opening is provided on the bottom edge of the upper support plate, and a pry opening is provided on the top edge of the lower support plate. This optimized solution allows the upper and lower support plates to be pried open through the pry openings, facilitating separation.

[0009] As an optimization, a positioning rod is fixedly connected to the side wall of the upper support plate, and a block is fixedly connected to the side wall of the top plate. The block has a positioning hole that mates with the positioning rod. This optimization facilitates precise alignment and connection between the upper support plate and the mold frame, improving ease of use.

[0010] As an optimization, a circular upper quick-release insert is fitted onto the upper end of the outer wall of the inner cylinder. The outer diameter of the upper quick-release insert matches the inner diameter of the outer cylinder, and the inner diameter of the upper quick-release insert matches the outer diameter of the inner cylinder. The upper quick-release insert is connected to the upper support plate by bolts. This optimized solution seals the upper end of the mold cavity through the upper quick-release insert.

[0011] As an optimization, the lower end of the inner cylinder is provided with a circular quick-release insert. The bottom of the inner cylinder is in sealing contact with the quick-release insert. A positioning pin is fixedly connected to the lower support plate. The positioning pin is coaxially arranged with the inner cylinder. The quick-release insert is sleeved on the positioning pin. The outer diameter of the quick-release insert matches the inner diameter of the outer cylinder, and the inner diameter of the quick-release insert matches the outer diameter of the positioning pin. This optimized solution seals the lower end of the mold cavity through the quick-release insert. Through the cooperation of the upper and lower quick-release inserts, an insulating platform structure is formed between them to create a casting cavity.

[0012] As an optimization, the bottom of the inner cylinder is provided with a positioning hole that mates with the positioning pin. This optimization facilitates the alignment of the inner cylinder and makes the outer cylinder and inner cylinder coaxial.

[0013] As an optimization, the upper support plate is provided with an observation hole that communicates with the inner cavity of the inner cylinder. This optimized solution allows for observation of the positioning hole from inside the inner cylinder through the observation hole, facilitating the alignment and insertion of the inner cylinder and the positioning pin.

[0014] As an optimization, a cap is installed on the observation hole. This optimization solution seals the observation hole with the cap to prevent impurities from entering.

[0015] The beneficial effects of this utility model are as follows: The injection molding assembly fixes the outer cylinder through the mold frame, the inner cylinder through the upper support plate, and the lower support plate is fixed to the lower end of the mold frame, thereby sealing the lower port of the outer cylinder. During mold assembly, simply moving the upper support plate allows the multiple inner cylinders fixed thereto to be inserted into the multiple outer cylinders to form a mold cavity. Epoxy resin is then injected into the mold cavity through the pouring hole for shaping and curing to obtain the insulating platform. During demolding, the upper support plate is separated from the mold frame, and the upper support plate drives the inner cylinder and the insulating platform to be removed from the outer cylinder, achieving product separation. Compared with the prior art, the disassembly efficiency is greatly improved, the mold assembly and demolding operations are simple, and the assembly is convenient, greatly improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the mold frame and outer cylinder structure; Figure 4 This is a schematic diagram of the installation of the lower support plate and the lower quick-release insert; Figure 5 This is a schematic diagram of the installation of the mold frame and the lower support plate; Figure 6 Schematic diagram of the upper support plate and inner cylinder structure Figure 1 ; Figure 7 Schematic diagram of the upper support plate and inner cylinder structure Figure 2 ; Figure 8 This is a schematic diagram of the mold cavity; Figure 9 This is a top view of the upper support plate; Figure 10 Schematic diagram of the observation hole and the cap; Figure 11 This is a schematic diagram of the mold assembly state; Figure 12 This is a schematic diagram of the demolding state; Figure 13 A schematic diagram of the inner cylinder, upper quick-release insert, and lower quick-release insert structure; Figure 14 Schematic diagram of the upper quick-release insert and the lower quick-release insert; Figure 15 This is a schematic diagram showing the insertion of the upper insert into the upper quick-release plate and the insertion of the lower insert into the lower quick-release plate. As shown in the figure: 1. Upper support plate, 2. Lower support plate, 3. Mold frame, 31. Top plate, 32. Bottom plate, 33. Connecting rod, 4. Bolt, 5. Outer cylinder, 6. Inner cylinder, 7. Gating groove, 71. Gating hole, 8. Observation hole, 9. Cover, 10. Ejector screw, 11. Lifting ring, 12. Positioning rod, 13. Insert block, 14. Pry hole, 15. Lower quick-release insert, 151. Lower quick-release plate, 152. Lower insert, 153. Lower hexagon socket bolt, 16. Positioning pin, 17. Upper quick-release insert, 171. Upper quick-release plate, 172. Upper insert, 173. Upper hexagon socket bolt, 18. Positioning hole, 19. Mold cavity. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0018] like Figures 1-15 As shown, a quick-assembly mold structure for an epoxy casting insulation platform includes an upper support plate 1 and a lower support plate 2 distributed vertically, and an injection molding assembly located between the upper support plate 1 and the lower support plate 2. In this embodiment, both the upper support plate 1 and the lower support plate 2 are rectangular plates.

[0019] The injection molding assembly includes a mold frame 3 and multiple injection mold cores. The mold frame 3 is detachably fixed to the upper support plate 1 and the lower support plate 2.

[0020] like Figure 1 , 3 As shown, specifically, the mold frame 3 includes a top plate 31 and a bottom plate 32 distributed vertically, and multiple connecting rods 33, with the upper and lower ends of the connecting rods 33 fixedly connected to the top plate 31 and the bottom plate 32, respectively. The multiple injection molding cores are evenly distributed between the top plate 31 and the bottom plate 32. In this embodiment, the number of injection molding cores is four.

[0021] In this embodiment, both the top plate 31 and the bottom plate 32 are rectangular plates, and the upper support plate 1, the lower support plate 2, the top plate 31, and the bottom plate 32 have the same dimensions. The multiple connecting rods 33 are symmetrically distributed on both sides of the top plate 31 and the bottom plate 32, connecting and fixing the top plate 31 and the bottom plate 32 to form a whole.

[0022] In this embodiment, the top plate 31 is fixedly connected to the upper support plate 1 by bolts 4, and the bottom plate 32 is fixedly connected to the lower support plate 2 by bolts 4, which facilitates the quick installation and disassembly of the upper support plate 1, the lower support plate 2 and the mold frame 3.

[0023] Preferably, a positioning rod 12 is fixedly connected to the side wall of the upper support plate 1, and a plug block 13 is fixedly connected to the side wall of the top plate 31. The plug block 13 has a positioning hole that mates with the positioning rod 12. When the upper support plate 1 is connected to the top plate 31, the positioning rod 12 is aligned with the positioning hole, so that the upper support plate 1 and the top plate 31 are precisely aligned and connected, achieving rapid installation and improving ease of use.

[0024] Preferably, the bottom edge of the upper support plate 1 and the top edge of the lower support plate 2 are provided with pry holes 14. During demolding, the upper support plate 1 and the lower support plate 2 are pried open through the pry holes 14, which facilitates the quick separation of the upper support plate 1 and the lower support plate 2 from the mold frame 3 and improves the ease of use.

[0025] like Figure 8 As shown, specifically, the injection mold core includes an outer cylinder 5 and an inner cylinder 6 coaxially arranged. The outer cylinder 5 is fixedly connected to the mold frame 3, and its upper and lower ends are respectively sealed to the upper support plate 1 and the lower support plate 2. The upper end of the inner cylinder 6 is fixedly connected to the upper support plate 1, and its lower end is sealed to the lower support plate 2. An annular mold cavity 19 is formed between the outer cylinder 5 and the inner cylinder 6. The top surface of the upper support plate 1 is provided with a pouring groove 7, and the pouring groove 7 is provided with a plurality of pouring holes 71, each pouring hole 71 being connected to a mold cavity 19 for injection mold core.

[0026] like Figure 2 As shown, when the upper support plate 1 and the lower support plate 2 are fixedly connected to the mold frame 3, the upper and lower ends of the outer cylinder 5 are respectively sealed and connected to the upper support plate 1 and the lower support plate 2, and the lower end of the inner cylinder 6 is sealed and connected to the lower support plate 2, thereby forming a sealed environment in the mold cavity to prevent leakage.

[0027] like Figure 9 As shown, in this embodiment, the casting groove 7 is fixed to the upper support plate 1 by bolts 4. Since this embodiment is provided with four injection mold cores, four casting holes 71 are opened on the bottom of the casting groove 7, which are respectively connected to the four mold cavities 19. Epoxy resin is poured into the four mold cavities 19 through the four casting holes 71 respectively.

[0028] In this embodiment, the upper and lower ends of the outer cylinder 5 are fixedly connected to and penetrate through the top plate 31 and the bottom plate 32, respectively. By connecting the upper and lower ends of the outer cylinder 5 to the top plate 31 and the bottom plate 32, the outer cylinder 5 and the mold frame 3 are fixedly connected. The upper end of the outer cylinder 5 is flush with the top surface of the top plate 31, and the lower end of the outer cylinder 5 is flush with the bottom surface of the bottom plate 32. Since the upper and lower ends of the outer cylinder 5 penetrate through the top plate 31 and the bottom plate 32, the inner cavity of the outer cylinder 5 is connected to the outside. The inner cavity of the outer cylinder 5 can then be sealed by the upper support plate 1 and the lower support plate 2.

[0029] The injection molding assembly fixes the outer cylinder 5 to the mold frame 3, making the outer cylinder 5 and the mold frame 3 an integral structure. The inner cylinder 6 is fixed by the upper support plate 1, making the inner cylinder 6 and the upper support plate 1 an integral structure. During mold loading and unloading, the inner cylinder 6 fixed to it can be inserted into or removed from the outer cylinder 5 by lifting the upper support plate 1, making the operation more convenient.

[0030] like Figure 6 , 7 As shown in Figure 13, an annular upper quick-installation insert 17 is fitted onto the upper end of the outer wall of the inner cylinder 6. The outer diameter of the upper quick-installation insert 17 is adapted to the inner diameter of the outer cylinder 5, and the inner diameter of the upper quick-installation insert 17 is adapted to the outer diameter of the inner cylinder 6. The upper quick-installation insert 17 is connected and fixed to the upper support plate 1 by bolts 4. The upper end of the mold cavity 19 is sealed by the upper quick-installation insert 17.

[0031] like Figure 14 , 15 As shown, specifically, the upper quick-installation insert 17 includes an annular upper quick-installation plate 171 and multiple upper inserts 172. The upper quick-installation plate 171 is detachably fixed to the upper support plate 1 by bolts. Multiple upper inserts 172 are evenly distributed circumferentially on the bottom surface of the upper quick-installation plate 171, and the upper inserts 172 are detachably fixed to the upper quick-installation plate 171 by upper hexagonal bolts 173. After the cast epoxy insulation platform solidifies, the upper inserts 172 are embedded and fixed on the top of the epoxy insulation platform. By unscrewing the upper hexagonal bolts 173, the upper quick-installation plate 171 can be separated from the upper inserts 172, thereby removing the upper quick-installation plate and improving the efficiency of quick installation and removal of the upper inserts.

[0032] like Figure 4 , 8 As shown, the lower end of the inner cylinder 6 is provided with an annular lower quick-installation insert 15. The bottom of the inner cylinder 6 is in sealing contact with the lower quick-installation insert 15. A positioning pin 16 is fixedly connected to the lower support plate 2. The positioning pin 16 is coaxially arranged with the outer cylinder 5 and the inner cylinder 6. The lower quick-installation insert 15 is sleeved on the positioning pin 16. The outer diameter of the lower quick-installation insert 15 is adapted to the inner diameter of the outer cylinder 5, and the inner diameter of the lower quick-installation insert 15 is adapted to the outer diameter of the positioning pin 16. The lower quick-installation insert 15 seals the lower end of the mold cavity 19. The cooperation between the upper quick-installation insert 17 and the lower quick-installation insert 15 forms an insulated platform structure for the casting cavity.

[0033] like Figure 14 , 15As shown, specifically, the lower quick-release insert 15 includes an annular lower quick-release plate 151 and multiple lower inserts 152. The lower quick-release plate 151 is fitted onto the positioning pin 16. Multiple lower inserts 152 are evenly distributed circumferentially on the top surface of the lower quick-release plate 151, and the lower inserts 152 and the lower quick-release plate 151 are detachably fixed together by lower hexagonal socket head cap screws 153. After the cast epoxy insulation platform solidifies, the lower inserts 152 are embedded and fixed at the bottom of the epoxy insulation platform. By unscrewing the lower hexagonal socket head cap screws 153, the lower quick-release plate 151 can be separated from the lower inserts 152, thereby removing the lower quick-release plate and improving the efficiency of quick installation and removal of the lower inserts.

[0034] like Figure 7 As shown, the bottom of the inner cylinder 6 is provided with a positioning hole 18 that cooperates with the positioning pin 16, which facilitates the alignment of the inner cylinder 6 and makes the outer cylinder 5 and the inner cylinder 6 coaxial.

[0035] like Figure 10 As shown, preferably, the upper support plate 1 has an observation hole 8 communicating with the inner cavity of the inner cylinder 6. The upper support plate 1 has multiple observation holes 8, the number of which is the same as the number of inner cylinders 6. In this embodiment, the upper support plate 1 has four observation holes 8, each corresponding to one of the four inner cylinders 6. The positioning hole 18 can be observed from inside the inner cylinder 6 through the observation holes 8, facilitating the alignment and insertion of the inner cylinder 6 and the positioning pin 16.

[0036] Preferably, a cover 9 is installed on the observation hole 8. The observation hole 8 is sealed by the cover 9 to prevent impurities from entering.

[0037] like Figure 9 As shown, in this embodiment, multiple lifting rings 11 are evenly distributed and fixed to the top surface of the upper support plate 1 for lifting the mold. The mold can be lifted to the casting equipment for epoxy resin pouring by connecting the lifting equipment to the lifting rings 11.

[0038] like Figure 1 As shown, in this embodiment, multiple set screws 10 are evenly distributed on the top surface of the upper support plate 1. The set screws 10 are threadedly connected to the upper support plate 1 and penetrate the upper support plate 1 to contact the top plate 31 of the mold frame 3. During demolding, the upper support plate 1 is lifted by rotating the set screws 10, which facilitates the separation of the upper support plate 1 from the mold frame 3.

[0039] Working principle: such as Figure 11As shown, during mold assembly, the lower quick-install insert 15 is first fitted onto the positioning pin 16 of the lower support plate 2, fixing the lower support plate 2 to the base plate 32 of the mold frame 3. Then, the upper support plate 1 is lifted, allowing multiple inner cylinders 6 to be inserted into multiple outer cylinders 5. Observation is made through the observation hole 8, ensuring that the positioning hole 18 at the bottom of the inner cylinder 6 is inserted into the positioning pin 16 of the lower support plate 2, thus making the inner cylinder 6 and outer cylinder 5 coaxial and forming the mold cavity 19. The upper support plate 1 is fixed to the top plate 31 of the mold frame 3. Epoxy resin is injected into the pouring groove 7, and the epoxy resin flows into each mold cavity 19 through each pouring hole 71, completing the injection molding. After the injection molding solidifies and forms the desired shape, the mold can be demolded.

[0040] like Figure 12 As shown, during demolding, the upper support plate 1 is separated from the top plate 31, and the upper support plate 1 is lifted to remove the multiple inner cylinders 6 and the solidified insulating platform from the outer cylinder 5. Personnel remove the quick-release insert 15 and then remove the insulating platform from the inner cylinder 6 to complete the demolding process, obtaining the insulating platform.

[0041] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A quick-assembly mold structure for an epoxy casting insulating platform, characterized in that: The system includes an upper support plate (1) and a lower support plate (2) distributed vertically, and an injection molding assembly located between the upper support plate (1) and the lower support plate (2). The injection molding assembly includes a mold frame (3) and multiple injection mold cores. The mold frame (3) is detachably fixed to the upper support plate (1) and the lower support plate (2). The injection mold core includes an outer cylinder (5) and an inner cylinder (6) arranged coaxially. The outer cylinder (5) is fixed to the mold frame (3). The upper and lower ends of the outer cylinder (5) are sealed to the upper support plate (1) and the lower support plate (2) respectively. The upper end of the inner cylinder (6) is fixed to the upper support plate (1), and the lower end of the inner cylinder (6) is sealed to the lower support plate (2). An annular mold cavity (19) is formed between the outer cylinder (5) and the inner cylinder (6). The top surface of the upper support plate (1) is provided with a pouring groove (7). The pouring groove is provided with multiple pouring holes (71). Each pouring hole (71) is connected to the mold cavity (19) of an injection mold core.

2. The quick-assembly mold structure for epoxy casting insulation platform according to claim 1, characterized in that: The mold frame (3) includes a top plate (31) and a bottom plate (32) distributed vertically, and multiple connecting rods (33). The upper and lower ends of the connecting rods (33) are fixed to the top plate (31) and the bottom plate (32) respectively. The upper and lower ends of the outer cylinder (5) are fixed to the top plate (31) and the bottom plate (32) respectively and pass through the top plate (31) and the bottom plate (32).

3. The quick-assembly mold structure for epoxy casting insulation platform according to claim 2, characterized in that: The top plate (31) is fixed to the upper support plate (1) by bolts (4), and the bottom plate (32) is fixed to the lower support plate (2) by bolts (4).

4. The quick-assembly mold structure for epoxy casting insulating platform according to claim 3, characterized in that: The bottom edge of the upper support plate (1) is provided with a pry hole (14), and the top edge of the lower support plate (2) is provided with a pry hole (14).

5. The quick-assembly mold structure for epoxy casting insulating platform according to claim 3, characterized in that: A positioning rod (12) is fixedly connected to the side wall of the upper support plate (1), and a plug (13) is fixedly connected to the side wall of the top plate (31). The plug (13) has a positioning hole that cooperates with the positioning rod (12).

6. The quick-assembly mold structure for epoxy casting insulation platform according to claim 1, characterized in that: The upper end of the outer wall of the inner cylinder (6) is fitted with a ring-shaped upper quick-installation insert (17). The outer diameter of the upper quick-installation insert (17) is adapted to the inner diameter of the outer cylinder (5), and the inner diameter of the upper quick-installation insert (17) is adapted to the outer diameter of the inner cylinder (6). The upper quick-installation insert (17) is connected to the upper support plate (1) by bolts (4).

7. The quick-assembly mold structure for epoxy casting insulating platform according to claim 6, characterized in that: The lower end of the inner cylinder (6) is provided with a circular quick-installation insert (15). The bottom of the inner cylinder (6) is in sealed contact with the quick-installation insert (15). A positioning pin (16) is fixed on the lower support plate (2). The positioning pin (16) is coaxially arranged with the inner cylinder (6). The quick-installation insert (15) is sleeved on the positioning pin (16). The outer diameter of the quick-installation insert (15) is adapted to the inner diameter of the outer cylinder (5). The inner diameter of the quick-installation insert (15) is adapted to the outer diameter of the positioning pin (16).

8. The quick-assembly mold structure for epoxy casting insulating platform according to claim 7, characterized in that: The bottom of the inner cylinder (6) is provided with a positioning hole (18) that cooperates with the positioning pin (16).

9. The quick-assembly mold structure for epoxy casting insulation platform according to claim 1, characterized in that: An observation hole (8) communicating with the inner cavity of the inner cylinder (6) is provided on the upper support plate (1).

10. The quick-assembly mold structure for epoxy casting insulating platform according to claim 9, characterized in that: A cover (9) is installed on the observation hole (8).

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