Adjustable transformer coil pouring mold

Abstract

The utility model discloses an adjustable transformer coil pouring mold, and particularly relates to the field of pouring molds, the adjustable transformer coil pouring mold comprises a base, the center position of the top of the base protrudes upwards to form a supporting ring, an opening is formed in the center position of one end of the supporting ring, and an inner mold is installed on the base on the outer side of the supporting ring; an inner mold is arranged on the base, an outer mold is arranged on the base on the outer side of the inner mold, rotating handles are installed in the centers of the tops of the two sides of the base, belt pulley mechanisms are arranged at the top ends of the interiors of the two side walls of the base, an upper pressing plate is arranged between the inner mold and the outer mold, and cross-shaped upper pressing pieces are arranged on the tops of the inner mold and the outer mold. The cross-shaped upper pressing piece is connected with the base through a screw rod, and a panel is clamped on one side of the interior of the outer mold. Through the arrangement of the cross-shaped upper pressing piece, the adjusting handle and the upper pressing plate, the upper pressing plate can be driven to ascend and descend by rotating the adjusting handle, so that the resin pouring height is adjusted, and the applicability of the device is higher.

Description

Technical Field

[0001] The utility model relates to the field of casting molds, and more specifically, to an adjustable transformer coil casting mold. Background Art

[0002] With the continuous improvement of my country's comprehensive national strength, my country's power development is in a leading position in the world in terms of scale and technology. Transformers are important equipment in power facilities. Transformers are generally divided into dry-type transformers and wet-type transformers. Dry-type transformers are favored by customers for their high efficiency, stable performance and convenient maintenance. The high-voltage coil on the dry-type transformer often needs to be placed in a casting mold, and then an appropriate height of resin is injected into the casting mold. The mold is then placed in an oven by workers to solidify the resin.

[0003] After searching, the existing patent (publication number: CN218314765U) discloses a new dry-type transformer casting mold in the field of transformer manufacturing technology, including a bottom plate, an outer mold side plate, an inner mold side plate and a top plate. The outer mold side plate includes a left outer plate and a right outer plate, and the inner mold side plate also includes a left inner plate and a right inner plate. The ends of the left outer plate and the left inner plate are vertically provided with T-shaped clips, and the ends of the right outer plate and the right inner plate are provided with T-shaped slots. A panel opening is provided on the right side of the right outer plate, and two panel pressure plates are provided at the two edges of the panel opening. A casting panel is provided between the two panel pressure plates; the upper surface of the bottom plate and the lower surface of the top plate are both provided with inner mounting grooves and outer mounting grooves; the beneficial effect of the utility model compared with the prior art is that the outer mold side plate and the inner mold side plate are made into a split type, and are connected and fixed by T-shaped clips and T-shaped slots, without unnecessary locking parts, easy to disassemble and assemble, split demoulding, simpler and lighter, not easy to deform, and the internal casting condition can be observed.

[0004] The casting height of existing transformer coil casting molds is difficult to adjust and is generally consistent with the height of the coil, which reduces applicability. In addition, traditional devices generally lack a structure to support the inner mold, and the disassembly and assembly of the inner and outer molds are relatively cumbersome, often consuming a large amount of workers' time. Furthermore, the aforementioned patent documents do not propose relevant solutions to solve the above problems.

[0005] Therefore, in order to solve the above problems, an adjustable transformer coil casting mold is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an adjustable transformer coil casting mold to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: An adjustable pouring mold for transformer coils, including a base. At the central position on the top of the base, a support ring protrudes upward. And at the central position of one end of the support ring, there is an opening. An inner mold is installed on the base outside the support ring, and an outer mold is arranged on the base outside the inner mold. At the central positions on the tops of both sides of the base, rotary handles are installed, and at the top ends inside the side walls of both sides of the base, pulley mechanisms are provided;

[0008] A upper pressing plate is arranged between the inner mold and the outer mold, and a cross upper pressing member is arranged on the tops of the inner mold and the outer mold. The cross upper pressing member is connected to the base through a screw rod. On one side inside the outer mold, a panel is clamped, and on the side of the outer mold close to the panel, an outer clamping component is installed. At the position close to the opening inside the inner mold, a clamping column is arranged, and at one end of the clamping column close to the center of the base, an inner clamping component is fixed.

[0009] Preferably, the base is designed in a "U" shape, and at both ends of both sides of the base, lifting grooves are opened. Inside the lifting grooves, screw rods are installed, and on the screw rods, nuts adapted to them are sleeved. On the sides of the nuts away from the base, universal joints are integrally connected, and at the bottoms of the universal joints, traveling wheels are installed. The tops of the screw rods are connected to the driven wheels of the pulley mechanisms, and the output ends of the rotary handles are connected to the driving wheels of the pulley mechanisms.

[0010] Preferably, on both end faces of the outer mold, outward flanges are provided, and on both sides of the outer mold, observation windows are arranged. The cross section of the outward flange is designed in a symmetric "L" shape, and the outward flange is in contact with the side wall of the panel.

[0011] Preferably, the inner wall of the inner mold is in contact with the outer wall of the support ring, and at the position of the inner mold close to the opening, inward flanges with a 90° bend are arranged. The distance between the inward flanges coincides with the thickness of the clamping column.

[0012] Preferably, at the four corners of the cross upper pressing member, screw rods penetrate through, and the bottoms of the screw rods are locked to the base through nuts. At both ends of the cross upper pressing member, connecting plates are connected, and at the central positions of the connecting plates, adjusting rods are threadedly connected. At the tops of the adjusting rods, adjusting handles are installed.

[0013] Preferably, the inner clamping component includes a spring tension column, a fixed seat, a handle and a limiting pressing plate. At one end of the clamping column close to the center of the base, a fixed seat is fixed through a bolt. At the top and bottom of both sides of the fixed seat, spring tension columns are hinged. On the sides of the spring tension columns away from the fixed seat, limiting pressing plates are threadedly connected, and on the sides of the limiting pressing plates away from the spring tension columns, handles are installed.

[0014] Preferably, the outer clamping assembly includes a splint, a contact sleeve, an adjusting bolt, a pull ring, a guide column, a mounting seat and a reset spring. A mounting seat is evenly welded on the side of one of the outer flanges of the outer mold facing away from the panel, and a guide column is hinged on the side of the mounting seat away from the outer mold. One end of the guide column is connected to a splint, and a contact sleeve with an inner diameter matching the outer diameter of the guide column is provided at the position of the splint close to the guide column. A reset spring is wound around the guide column between the contact sleeve and the mounting seat, and an adjusting bolt is provided on the end of the contact sleeve away from the guide column. The adjusting bolt is threadedly connected to the end of the guide column, and a pull ring is provided on the end of the adjusting bolt away from the guide column.

[0015] Preferably, the shape of the upper pressing plate matches the shape of the gap between the inner mold and the outer mold, and both ends of the top of the upper pressing plate are rotatably connected to the bottom of the adjusting rod.

[0016] The technical effects and advantages of this utility model are:

[0017] 1. Compared with the existing technology, the adjustable transformer coil casting mold is provided with a cross upper pressure piece, an adjustment handle and an upper pressure plate. Turning the adjustment handle can drive the upper pressure plate to move up and down, thereby adjusting the height of the resin pouring, making the device more applicable.

[0018] 2. Compared with the prior art, the adjustable transformer coil casting mold is provided with an outer clamping assembly and an inner clamping assembly. When fixing the outer mold, it is only necessary to rotate the guide column to align the clamping plate with the outer flange, and tighten the adjusting bolt to bring the clamping plate close to the outer flange and clamp it, thereby fixing the outer mold. The operation is very convenient, and when demoulding, it is only necessary to slightly loosen the adjusting bolt, and the clamping plate can be separated from the outer flange under the action of the reset spring. At this time, the guide column can be rotated to separate the clamping plate from the outer flange, and the outer mold can be disassembled and assembled very conveniently. When fixing the inner mold, it is only necessary to insert the clamping column between the two inner flanges, insert the bottom of the clamping column into the opening, and then pull the handle hard to extend the spring tension column, which makes it convenient to fit the limit pressure plate with the inner flange. Loosen the handle, and the limit pressure plate can clamp the inner flange under the elastic force of the spring tension column. There is no need to use a large number of bolts for clamping and fixing, and the operation is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the base structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the outer mold structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the outer clamping component of the utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the inner clamping component of the utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the cross upper pressing piece of the utility model.

[0025] The accompanying drawings are marked as follows: 1. Base; 2. Rotating handle; 3. Outer mold; 301. Outer flange; 4. Inner mold; 401. Inner flange; 5. Clamping column; 6. Cross upper pressure piece; 601. Screw; 602. Connecting plate; 603. Adjusting rod; 604. Adjusting handle; 7. Panel; 8. Nut; 9. Traveling wheel; 10. Universal joint; 11. Lifting slot; 12. Screw; 13. Support ring; 1301. Opening; 14. Inner clamping assembly; 1401. Spring tension column; 1402. Fixed seat; 1403. Handle; 1404. Limiting pressure plate; 15. Outer clamping assembly; 16. Upper pressure plate; 17. Clamp; 1701. Contact sleeve; 18. Adjusting bolt; 1801. Pull ring; 19. Guide column; 20. Mounting seat; 21. Return spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] As attached Figure 1 The adjustable transformer coil casting mold shown includes a base 1. The center of the top of the base 1 protrudes upward to form a support ring 13, and an opening 1301 is provided at the center of one end of the support ring 13. An inner mold 4 is mounted on the base 1 outside the support ring 13, and an outer mold 3 is mounted on the base 1 outside the inner mold 4. Rotary handles 2 are mounted at the center of the top of each side of the base 1, and pulley mechanisms are provided at the top of the inner walls of each side of the base 1.

[0029] An upper pressure plate 16 is arranged between the inner mold 4 and the outer mold 3, and a cross upper pressure piece 6 is arranged on the top of the inner mold 4 and the outer mold 3. The cross upper pressure piece 6 is connected to the base 1 through a screw 601. A panel 7 is clamped on one side of the inner part of the outer mold 3, and an external clamping component 15 is installed on the side of the outer mold 3 close to the panel 7. A clamping column 5 is provided at a position close to the opening 1301 inside the inner mold 4, and an internal clamping component 14 is fixed to one end of the clamping column 5 close to the center of the base 1.

[0030] Wherein: By rotating the rotary handle 2, the walking wheels 9 can be driven to rise and fall through the pulley mechanism, so that the device can be switched between a stable placement state and a convenient transfer state. The support ring 13 can support the inner mold 4, thereby ensuring the stability of the shape of the inner mold 4.

[0031] Embodiment 2

[0032] Based on Embodiment 1, the solution in Embodiment 1 will be further refined and introduced in combination with the following specific working methods, as Figures 1 to 6 shown, and the details are described below:

[0033] As a preferred embodiment, the base 1 is designed in a "U" shape, and lifting grooves 11 are provided at both ends of the two sides of the base 1. The lifting grooves 11 are each provided with a screw rod 12, and a nut 8 adapted to the screw rod 12 is sleeved on each screw rod 12. A universal joint 10 is integrally connected to the side of the nut 8 away from the base 1, and a walking wheel 9 is installed at the bottom of each universal joint 10. The top of each screw rod 12 is connected to the driven wheel of the pulley mechanism, and the output end of the rotary handle 2 is connected to the driving wheel of the pulley mechanism; further, by rotating the rotary handle 2, the screw rod 12 can be driven to rotate synchronously through the pulley mechanism, so that the nut 8 rises and falls in the lifting groove 11, driving the walking wheel 9 to rise and fall, so that the device can be switched between a stable placement state and a convenient transfer state, with stronger practicability.

[0034] As a preferred embodiment, both end faces of the outer mold 3 are provided with outward flanges 301, and observation windows are provided on both sides of the outer mold 3. The cross-section of the outward flange 301 is designed in a symmetric "L" shape, and the outward flange 301 is in contact with the side wall of the panel 7; further, the observation window can be used to observe the height of the upper pressing plate 16, making the height adjustment more accurate.

[0035] As a preferred embodiment, the inner wall of the inner mold 4 is in contact with the outer wall of the support ring 13, and inward flanges 401 bent at 90° are provided at positions of the inner mold 4 close to the opening 1301. The distance between the inward flanges 401 coincides with the thickness of the clamping post 5; further, when fixing the inner mold 4, the inward flanges 401 are closely attached to the side wall of the clamping post 5, not easily deformed, and the clamping stability is stronger.

[0036] As a preferred embodiment, screws 601 penetrate through the four corners of the cross-shaped upper pressing member 6, and the bottoms of the screws 601 are locked to the base 1 through nuts. Connecting plates 602 are connected to both ends of the cross-shaped upper pressing member 6, and adjusting rods 603 are threadedly connected to the central positions of the connecting plates 602. Adjusting handles 604 are installed at the tops of the adjusting rods 603; further, by rotating the adjusting handle 604, the adjusting rod 603 can be moved up or down, thereby adjusting the height of the upper pressing plate 16 connected thereto, with a more reasonable design.

[0037] As a preferred embodiment, the inner clamping assembly 14 includes a spring tension column 1401, a fixing seat 1402, a handle 1403 and a limiting pressure plate 1404. The end of the clamping column 5 close to the center of the base 1 is fixed to the fixing seat 1402 by a bolt, and the top and bottom of both sides of the fixing seat 1402 are hinged with spring tension columns 1401, and the side of the spring tension column 1401 away from the fixing seat 1402 is threadedly connected to the limiting pressure plate 1404, and the side of the limiting pressure plate 1404 away from the spring tension column 1401 is A handle 1403 is installed; further, when fixing the inner mold 4, it is only necessary to insert the clamping column 5 between the two inner flanges 401, insert the bottom of the clamping column 5 into the opening 1301, and then pull the handle 1403 hard to extend the spring tension column 1401, so that the limiting pressure plate 1404 is aligned with the inner flange 401, and release the handle 1403. The limiting pressure plate 1404 can clamp the inner flange 401 under the elastic force of the spring tension column 1401, and there is no need to use a large number of bolts for clamping and fixing, so the operation is more convenient and quick.

[0038] As a preferred embodiment, the outer clamping assembly 15 includes a splint 17, a contact sleeve 1701, an adjusting bolt 18, a pull ring 1801, a guide column 19, a mounting seat 20 and a reset spring 21. The mounting seat 20 is evenly welded on the side of one of the outer flanges 301 of the outer mold 3 facing away from the panel 7, and the mounting seat 20 is hinged to the side away from the outer mold 3 with a guide column 19. One end of the guide column 19 is connected to the splint 17, and the position of the splint 17 close to the guide column 19 is provided with a contact sleeve 1701 whose inner diameter matches the outer diameter of the guide column 19. A reset spring 21 is wound on the guide column 19 between the contact sleeve 1701 and the mounting seat 20, and the end of the contact sleeve 1701 away from the guide column 19 is They are all provided with adjusting bolts 18, which are threadedly connected to the ends of the guide posts 19, and a pull ring 1801 is provided on the ends of the adjusting bolts 18 away from the guide posts 19; further, when fixing the outer mold 3, it is only necessary to rotate the guide posts 19 to align the splint 17 with the outer flange 301, and tighten the adjusting bolts 18, so that the splint 17 can be close to the outer flange 301 and clamped, thereby completing the fixation of the outer mold 3. The operation is very convenient, and when demoulding, it is only necessary to slightly loosen the adjusting bolts 18, and the splint 17 can be separated from the outer flange 301 under the action of the reset spring 21. At this time, the guide posts 19 can be rotated to separate the splint 17 from the outer flange 301, and the disassembly and assembly of the outer mold 3 is very convenient.

[0039] As a preferred embodiment, the shape of the upper pressure plate 16 matches the shape of the gap between the inner mold 4 and the outer mold 3, and both ends of the top of the upper pressure plate 16 are rotatably connected to the bottom of the adjusting rod 603; further, the shape-matching design makes it difficult for epoxy resin to leak from the gap when pouring into the mold, and there are fewer edges that need to be trimmed, and the design is more reasonable.

[0040] The working process of this utility model is as follows:

[0041] When in use, first put the inner mold 4 on the support ring 13, then insert the clamping column 5 between the two inner flanges 401, and insert the bottom of the clamping column 5 into the opening 1301. Pull the handle 1403 hard to extend the spring tension column 1401, so that the limiting pressure plate 1404 is aligned with the inner flange 401. Release the handle 1403. The limiting pressure plate 1404 can clamp the inner flange 401 under the elastic force of the spring tension column 1401 to complete the fixation of the inner mold 4. Put the transformer coil to be cast on the outside of the inner mold 4, and then put on the outer mold. 3. Rotate the guide column 19 to align the splint 17 with the outer flange 301, and tighten the adjusting bolt 18 to bring the splint 17 close to the outer flange 301 to clamp it and fix the outer mold 3. Then press the cross upper pressure piece 6 on the inner mold 4 and the outer mold 3, and use the nut to lock the bottom of the screw 601 with the base 1 to complete the upper and lower fixation of the inner mold 4 and the outer mold 3. Then adjust the handle 604 to move the adjusting rod 603 up or down, thereby adjusting the height of the upper pressure plate 16 connected to it, and thus adjusting the height of the resin pouring.

[0042] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable transformer coil casting mold, comprising a base (1), characterized in that: At the central position on the top of the base (1), a support ring (13) protrudes upward, and an opening (1301) is provided at the central position of one end of the support ring (13). An inner mold (4) is installed on the base (1) outside the support ring (13), and an outer mold (3) is provided on the base (1) outside the inner mold (4). Rotating handles (2) are installed at the central positions on the tops of both sides of the base (1), and pulley mechanisms are provided at the tops of the inner sides of both side walls of the base (1). An upper pressing plate (16) is provided between the inner mold (4) and the outer mold (3), and a cross-shaped upper pressing member (6) is provided on the tops of the inner mold (4) and the outer mold (3). The cross-shaped upper pressing member (6) is connected to the base (1) through a screw rod (601). A panel (7) is clamped on one side inside the outer mold (3), and an outer clamping assembly (15) is installed on the side of the outer mold (3) close to the panel (7). A clamping post (5) is provided at a position inside the inner mold (4) close to the opening (1301), and an inner clamping assembly (14) is fixed to one end of the clamping post (5) close to the center of the base (1).

2. The adjustable transformer coil casting mold according to claim 1, characterized in that: The base (1) is designed in a "U" shape, and lifting grooves (11) are provided at both ends of both sides of the base (1). A screw rod (12) is installed in each of the lifting grooves (11), and a nut (8) adapted to the screw rod (12) is sleeved on each screw rod (12). A universal joint (10) is integrally connected to one side of each nut (8) away from the base (1), and a traveling wheel (9) is installed at the bottom of each universal joint (10). The tops of the screw rods (12) are connected to the driven wheels of the pulley mechanism, and the output ends of the rotating handles (2) are connected to the driving wheels of the pulley mechanism.

3. The adjustable transformer coil casting mold according to claim 1, characterized in that: Flanging edges (301) are provided on both end faces of the outer mold (3), and observation windows are provided on both sides of the outer mold (3). The cross-section of the flanging edge (301) is designed in a symmetric "L" shape, and the flanging edge (301) is in contact with the side wall of the panel ((7).

4. The adjustable transformer coil casting mold according to claim 1, characterized in that: The inner wall of the inner mold ((4) is in contact with the outer wall of the support ring (13), and inner flanging edges (401) bent at 90° are provided at positions of the inner mold (4) close to the opening (1301). The distance between the inner flanging edges (401) is consistent with the thickness of the clamping post (5).

5. The adjustable transformer coil casting mold according to claim 1, characterized in that: Screw rods (601) penetrate through the four corners of the cross-shaped upper pressing member (6), and the bottoms of the screw rods (601) are locked to the base (1) through nuts. Connecting plates (602) are connected to both ends of the cross-shaped upper pressing member (6), and adjusting rods (603) are threadedly connected to the central positions of the connecting plates (602). Adjusting handles (604) are installed on the tops of the adjusting rods (603).

6. The adjustable transformer coil casting mold according to claim 1, characterized in that: The inner clamping assembly (14) comprises a spring tension column (1401), a fixing seat (1402), a handle (1403) and a limiting pressure plate (1404), wherein one end of the clamping column (5) close to the center of the base (1) is fixed to the fixing seat (1402) by a bolt, and the top and bottom of both sides of the fixing seat (1402) are hinged with spring tension columns (1401), and the side of the spring tension column (1401) away from the fixing seat (1402) is threadedly connected to the limiting pressure plate (1404), and the side of the limiting pressure plate (1404) away from the spring tension column (1401) is installed with a handle (1403).

7. The adjustable transformer coil casting mold according to claim 3, characterized in that: The outer clamping assembly (15) includes a clamping plate (17), a contact sleeve (1701), an adjusting bolt (18), a pull ring (1801), a guide post (19), a mounting seat (20) and a reset spring (21), and the mounting seat (20) is uniformly welded on one side of the outer flange (301) of the outer mold (3) away from the panel (7), and the mounting seat (20) is hinged to the guide post (19) on the side away from the outer mold (3), and one end of the guide post (19) is connected to the clamping plate (17), and the clamping plate (17 ) is provided at a position close to the guide column (19), the inner diameter of which matches the outer diameter of the guide column (19), a return spring (21) is wound on the guide column (19) between the contact sleeve (1701) and the mounting seat (20), and an adjusting bolt (18) is provided at one end of the contact sleeve (1701) away from the guide column (19), the adjusting bolt (18) is threadedly connected to the end of the guide column (19), and a pull ring (1801) is provided at one end of the adjusting bolt (18) away from the guide column (19).

8. The adjustable transformer coil casting mold according to claim 5, characterized in that: The shape of the upper pressing plate (16) matches the shape of the gap between the inner mold (4) and the outer mold (3), and both ends of the top of the upper pressing plate (16) are rotatably connected to the bottom of the adjustment rod (603).

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