High-pressure forming die

Abstract

The utility model discloses a high-pressure forming die which comprises a fixed base, an upper pouring sealing bottom plate is installed on the fixed base, an outer die body and an inner die body are installed on the upper pouring sealing bottom plate, and a pouring cavity is formed between the outer die body and the inner die body. A side edge sealing connecting structure connected with the outer mold body and the inner mold body is arranged on the upper pouring sealing bottom plate, and an upper limiting shaping structure attached to the outer mold body and the inner mold body is arranged at the top of the pouring cavity. The mold is simple in structure and convenient to demold, the cost of the mold is reduced, meanwhile, the overall sealing performance is high, forming of a pouring cavity is guaranteed, and the pouring effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coil forming dies, in particular to a high-pressure forming die. Background Art

[0002] Transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. Its structure mainly consists of a core made of silicon steel sheets and a coil cast with epoxy resin. An insulating cylinder is placed between the high and low voltage coils to increase electrical insulation, and the coils are supported and constrained by pads. The fasteners of its parts have anti-loosening properties; it has the advantages of strong short-circuit resistance, small maintenance workload, high operating efficiency, small size, and low noise.

[0003] Dry-type transformer coils are generally cast with resin outside the coil to form a resin body, and the coil is buried in the resin body. The coil casting and sealing is required during molding. However, most of the existing casting molds are integrally connected structures. Although some structures are detachable, after casting is completed, it is still difficult to demold because it cannot be completely disassembled, which reduces production efficiency.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a high-pressure forming die.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a high-pressure forming mold, including a fixed base, an upper casting sealing bottom plate is installed on the fixed base, an outer mold body and an inner mold body are installed on the upper casting sealing bottom plate, and a casting cavity is formed between the outer mold body and the inner mold body, a side sealing connection structure connected to the outer mold body and the inner mold body is provided on the upper casting sealing bottom plate, and an upper limit positioning shaping structure that fits with the outer mold body and the inner mold body is provided on the top of the casting cavity.

[0007] Preferably, the outer mold body and the inner mold body both include a casting baffle, and both ends of the casting baffle are provided with a bent connecting piece, and the bent connecting piece of the outer mold body is located on the outside, and the bent connecting piece of the inner mold body is located on the inside, and the bent connecting piece is penetrated by several positioning through holes.

[0008] Preferably, an annular groove is opened at the bottom center of the casting baffle, and an outer annular connecting sealing plate and an inner annular connecting sealing plate matching the annular groove are provided on the upper casting sealing bottom plate, and an annular cavity is formed between the outer annular connecting sealing plate and the inner annular connecting sealing plate.

[0009] Preferably, the outer wall of the outer annular connecting sealing piece and the inner wall of the inner annular connecting sealing piece are both symmetrically provided with four groups of elastic positioning pieces.

[0010] Preferably, the side sealing connection structure is fixed to a connecting vertical plate on the upper cast sealing bottom plate, a positioning groove is provided on one side of the connecting vertical plate, two positioning through holes are penetrated on both sides of the positioning groove, and a positioning column is penetrated in the two positioning through holes.

[0011] Preferably, the upper limit positioning shaping structure includes an upper positioning ring matching the casting cavity, the upper positioning ring is provided with two groups of heat dissipation ports, one side of the upper positioning ring is connected to a high-pressure casting pipe, four groups of positioning plates are fixedly installed on the upper positioning ring, and both ends of the positioning plates are integrally connected with extension folding plates.

[0012] Preferably, the upper cast sealing bottom plate is symmetrically provided with through holes, the fixed base is symmetrically provided with positioning studs penetrating the through holes, and nuts are installed on the positioning studs.

[0013] The utility model provides a high pressure forming die, which has the following beneficial effects:

[0014] By fixing the upper casting sealing bottom plate on the fixed base, and installing the outer mold body and the inner mold body on the upper casting sealing bottom plate, the sealing of the installed outer mold body and the inner mold body with the upper casting sealing bottom plate is ensured, and a casting cavity is formed between the outer mold body and the inner mold body. The set side sealing connection structure can seal the sides of the outer mold body and the inner mold body, and the set upper limit forming structure can ensure the positioning of the outer mold body and the inner mold body during installation. The device of the present application is a detachable structure as a whole, and the disassembly and assembly work are very convenient, which facilitates demoulding and reduces the cost of the mold. At the same time, the overall sealing is high, which ensures the molding of the casting cavity and improves the casting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1This is a front view of a high pressure forming die according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of an outer mold body and an inner mold body in a high-pressure forming mold according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a cast-in-place sealing bottom plate in a high-pressure forming mold according to an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a side sealing connection structure in a high pressure forming mold according to an embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of an upper limit shaping structure in a high pressure forming die according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Fixed base; 2. Upper casting sealing bottom plate; 3. Outer mold body; 4. Inner mold body; 5. Side sealing connection structure; 6. Upper limit shaping structure; 7. Casting baffle; 8. Bending connection plate; 9. Positioning through hole one; 10. Annular groove; 11. Outer annular connection sealing plate; 12. Inner annular connection sealing plate; 13. Elastic positioning plate; 14. Annular cavity; 15. Through hole; 16. Connecting vertical plate; 17. Positioning groove; 18. Positioning through hole two; 19. Positioning column; 20. Upper positioning ring; 21. Heat dissipation port; 22. Positioning plate; 23. Extended folding plate; 24. High-pressure casting pipeline; 25. Positioning stud; 26. Nut. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5The utility model provides a high-pressure forming mold, comprising a fixed base 1, an upper casting sealing bottom plate 2 is installed on the fixed base 1, an outer mold body 3 and an inner mold body 4 are installed on the upper casting sealing bottom plate 2, and a casting cavity is formed between the outer mold body 3 and the inner mold body 4, by fixing the upper casting sealing bottom plate 2 on the fixed base 1, and installing the outer mold body 3 and the inner mold body 4 on the upper casting sealing bottom plate 2, and ensuring that the outer mold body 3 and the inner mold body 4 are sealed with the upper casting sealing bottom plate 2 after installation The upper casting sealing bottom plate 2 is provided with a side sealing connection structure 5 connected with the outer mold body 3 and the inner mold body 4, and the top of the casting cavity is provided with an upper limit positioning shaping structure 6 which fits with the outer mold body 3 and the inner mold body 4. The side sealing connection structure 5 can seal the sides of the outer mold body 3 and the inner mold body 4, and the upper limit positioning shaping structure 6 can ensure the positioning of the outer mold body 3 and the inner mold body 4 during installation.

[0025] In one embodiment, please refer to the attached manual. Figure 2 and Figure 4 As shown, the outer mold body 3 and the inner mold body 4 both include a casting baffle 7, and both ends of the casting baffle 7 are provided with a bent connecting piece 8, and the bent connecting piece 8 of the outer mold body 3 is located on the outside, and the bent connecting piece 8 of the inner mold body 4 is located on the inside, and the bent connecting piece 8 is penetrated with a plurality of positioning through holes 1 9, and the side sealing connection structure 5 is fixed to the connecting vertical plate 16 on the upper casting sealing bottom plate 2, and a positioning groove 17 is opened on one side of the connecting vertical plate 16, and positioning through holes 2 18 are penetrated on both sides of the positioning groove 17, and positioning columns 19 are penetrated in the positioning through holes 2 18. The bent connecting pieces 8 provided at both ends of the casting baffle 7 are inserted into the positioning groove 17 on one side of the connecting vertical plate 16, and the positioning through holes 2 18 and the positioning through holes 1 9 are penetrated and connected by the positioning columns 19, thereby ensuring the sealing of the side, and no deformation occurs, and easy installation and disassembly work.

[0026] In one embodiment, please refer to the attached manual. Figure 2-3 As shown, an annular groove 10 is provided at the bottom center of the casting baffle 7, and an outer annular connection sealing piece 11 and an inner annular connection sealing piece 12 matching the annular groove 10 are provided on the upper casting sealing bottom plate 2, an annular cavity 14 is formed between the outer annular connection sealing piece 11 and the inner annular connection sealing piece 12, and four groups of elastic positioning pieces 13 are symmetrically provided on the outer wall of the outer annular connection sealing piece 11 and the inner wall of the inner annular connection sealing piece 12. The outer annular connection sealing piece 11 and the inner annular connection sealing piece 12 are respectively installed and shaped by the provided annular groove 10 to improve the sealing of the connection, and the provided elastic positioning piece 13 increases the stability of the connection.

[0027] In one embodiment, please refer to the attached manual. Figure 5 As shown, the upper limit positioning shaping structure 6 includes an upper positioning ring 20 matching the casting cavity, and the upper positioning ring 20 is provided with two groups of heat dissipation ports 21. One side of the upper positioning ring 20 is connected with a high-pressure casting pipe 24. Four groups of positioning pieces 22 are fixedly installed on the upper positioning ring 20, and both ends of the positioning pieces 22 are integrally connected with extension folding plates 23. The upper positioning ring 20 is placed at the port of the casting cavity, and the positioning pieces 22 cooperate with the extension folding plates 23 to limit the ends of the outer mold body 3 and the inner mold body 4. The high-pressure casting pipe 24 is provided. When high-pressure casting is performed, the high-pressure casting pipe 24 is connected with the prepared high-pressure casting equipment, so that the high-pressure casting raw materials enter the casting cavity from the high-pressure casting pipe 24, and the casting work is completed in the casting cavity. The heat dissipation ports 21 provided increase the speed of its cooling and solidification.

[0028] In one embodiment, please refer to the attached manual. Figure 1 and Figure 3 As shown, the upper cast sealing bottom plate 2 is symmetrically provided with through holes 15, and the fixed base 1 is symmetrically provided with positioning studs 25 penetrating the through holes 15, and nuts 26 are installed on the positioning studs 25. After the positioning studs 25 pass through the through holes 15, the nuts 26 are used for positioning, so that the upper cast sealing bottom plate 2 and the fixed base 1 are installed and fixed, and the disassembly is also convenient.

[0029] In actual application, the upper casting sealing bottom plate 2 is fixed on the fixed base 1, and the outer mold body 3 and the inner mold body 4 are installed on the upper casting sealing bottom plate 2, and the sealing between the outer mold body 3 and the inner mold body 4 and the upper casting sealing bottom plate 2 after installation is ensured, and at the same time, a casting cavity is formed between the outer mold body 3 and the inner mold body 4. The side sealing connection structure 5 set can seal the sides of the outer mold body 3 and the inner mold body 4, and the upper limit positioning shaping structure 6 set can ensure the positioning of the outer mold body 3 and the inner mold body 4 during installation. The device of the present application is a detachable structure as a whole, and the disassembly and assembly work are very convenient, which reduces the cost of the mold. At the same time, the overall sealing is high, which ensures the molding of the casting cavity and improves the casting effect.

[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high pressure forming die, characterized in that: The invention comprises a fixed base (1), an upper cast sealing bottom plate (2) is installed on the fixed base (1), an outer mold body (3) and an inner mold body (4) are installed on the upper cast sealing bottom plate (2), and a casting cavity is formed between the outer mold body (3) and the inner mold body (4), a side sealing connection structure (5) connected to the outer mold body (3) and the inner mold body (4) is provided on the upper cast sealing bottom plate (2), and an upper limit positioning shaping structure (6) which fits with the outer mold body (3) and the inner mold body (4) is provided on the top of the casting cavity.

2. A high pressure forming die according to claim 1, characterized in that: The outer mold body (3) and the inner mold body (4) both comprise a casting baffle (7), and both ends of the casting baffle (7) are provided with a bent connecting piece (8), and the bent connecting piece (8) of the outer mold body (3) is located on the outside, and the bent connecting piece (8) of the inner mold body (4) is located on the inside, and the bent connecting piece (8) is penetrated by a plurality of positioning through holes (9).

3. A high pressure forming die according to claim 2, characterized in that: An annular groove (10) is provided at the bottom center of the casting baffle (7), and an outer annular connecting sealing sheet (11) and an inner annular connecting sealing sheet (12) matching the annular groove (10) are provided on the upper casting sealing bottom plate (2), and an annular cavity (14) is formed between the outer annular connecting sealing sheet (11) and the inner annular connecting sealing sheet (12).

4. A high pressure forming die according to claim 3, characterized in that: The outer wall of the outer annular connecting sealing sheet (11) and the inner wall of the inner annular connecting sealing sheet (12) are both symmetrically provided with four groups of elastic positioning sheets (13).

5. A high pressure forming die according to claim 4, characterized in that: The side sealing connection structure (5) is fixed to a connecting vertical plate (16) on the upper cast sealing bottom plate (2), a positioning groove (17) is provided on one side of the connecting vertical plate (16), two positioning through holes (18) are provided on both sides of the positioning groove (17), and a positioning column (19) is provided in the second positioning through hole (18).

6. A high pressure forming die according to claim 5, characterized in that: The upper limit positioning shaping structure (6) comprises an upper positioning ring (20) matching the casting cavity, the upper positioning ring (20) being provided with two groups of heat dissipation ports (21), one side of the upper positioning ring (20) being connected with a high-pressure casting pipeline (24), four groups of positioning plates (22) being fixedly mounted on the upper positioning ring (20), and both ends of the positioning plates (22) being integrally connected with extension folding plates (23).

7. A high pressure forming die according to claim 6, characterized in that: The upper cast sealing bottom plate (2) is symmetrically provided with through holes (15), and the fixed base (1) is symmetrically provided with positioning studs (25) penetrating the through holes (15), and nuts (26) are installed on the positioning studs (25).

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