Epoxy resin vacuum pouring device for transformer production

Abstract

The invention relates to the technical field of transformer part production equipment, and particularly discloses an epoxy resin vacuum pouring device for transformer production, which comprises a chassis, the upper surface of the chassis is fixedly connected with an adapter ring, the outer surface of the chassis is symmetrically and fixedly connected with connecting rods, the middle part of the adapter ring is hollow, and the connecting rods are symmetrically and fixedly connected with the adapter ring. A buckling cover is arranged on the upper surface of the adapter ring in a buckling mode, and a buckling ring is fixedly connected to the top of the buckling cover. By arranging the processing box, epoxy resin can be pre-stored, then the continuity of epoxy resin input into a mold is guaranteed, the overall pouring quality is improved, bubbles and air holes are reduced, the probability that epoxy resin is blocked can be greatly reduced through pressurized conveying, and the working stability of the device is greatly improved; and meanwhile, forcible feeding can be realized by keeping a certain external pressure through pressurized conveying, which is particularly important for controlling volume change in the curing process and is beneficial to reducing internal stress and deformation of the cast insulation coil.

Description

Technical Field

[0001] The invention relates to the technical field of transformer parts production equipment, in particular to an epoxy resin vacuum casting device for transformer production. Background Art

[0002] In the production process of transformer parts, epoxy resin vacuum pouring technology is a key process, which can provide the necessary insulation protection and mechanical strength for the transformer coil. However, the existing epoxy resin vacuum pouring equipment has some technical bottlenecks and operational difficulties in practical applications. These problems directly affect the production efficiency and the quality of the final product: First, the existing pouring device cannot guarantee the continuity and uniformity of the resin during the process of conveying the epoxy resin to the mold, resulting in interruptions or unevenness in the pouring process, which will reduce the insulation performance and mechanical strength of the insulating coil; secondly, the epoxy resin is easily mixed with air during the pouring process to form bubbles and pores. These defects will seriously affect the electrical and physical properties of the insulating material and reduce the reliability and stability of the product; in addition, the existing device has deficiencies in mold filling, which may cause the epoxy resin to be unable to fully fill every corner of the mold, forming local gaps or uneven density, which will also weaken the overall performance of the insulating coil.

[0003] Another problem with existing casting devices is that their working stability is not high. Blockage may occur during the delivery of epoxy resin, which not only affects production efficiency, but may also damage the equipment and increase maintenance costs. The volume change during the curing process is also a problem. The epoxy resin may shrink during the process of changing from liquid to solid, causing internal stress and deformation of the insulating coil, affecting its dimensional accuracy and mechanical properties. Summary of the invention

[0004] The present invention provides an epoxy resin vacuum casting device for transformer production, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an epoxy resin vacuum casting device for transformer production, comprising a chassis, an adapter ring is fixedly connected to the upper surface of the chassis, a connecting rod is symmetrically fixedly connected to the outer surface of the chassis, the middle part of the adapter ring is hollow, a buckle cover is buckled on the upper surface of the adapter ring, and a buckle ring is fixedly connected to the top of the buckle cover, and further comprising: A feeding mechanism, the feeding mechanism is fixedly mounted on the inner side of the buckle ring, the bottom of the feeding mechanism is fixedly connected to the upper surface of the buckle cover, and the feeding mechanism is used to perform preliminary processing on the epoxy resin when conveying the epoxy resin; A pouring mechanism, wherein the pouring mechanism is fixedly installed inside the adapter ring, the bottom of the pouring mechanism is fixedly connected to the chassis, and the pouring mechanism is used to pour the insulating coil through the epoxy resin passing through the feeding mechanism; The feeding mechanism comprises a feeding plate, which is arranged horizontally and arranged in the middle part of the inner side of the buckling ring. A feeding pipe is fixedly connected through the middle part of the feeding plate. A processing box is fixedly connected to the bottom surface of the feeding plate by bolts. The processing box is arranged in a disc shape. The interior of the processing box is arranged in a hollow shape. A connecting groove is provided on the top of the processing box. The connecting groove is arranged in a circular shape. The bottom of the connecting groove is connected to the internal cavity of the processing box. The top of the connecting groove is connected to the feeding pipe.

[0006] A pressurizing hole is provided through the bottom of the processing box, and four pressurizing holes are provided at fixed intervals around the central axis of the processing box. A special-shaped ring is fixedly connected to the bottom of the processing box, and four special-shaped rings are provided at fixed intervals around the central axis of the processing box. A through hole is reserved through the middle of the special-shaped ring, and the reserved through hole of the special-shaped ring is connected to the pressurizing hole. First, the snap-fit ​​cover is lifted upward, and then the coil to be poured with epoxy resin is placed in the pouring mechanism, and the device is placed in a vacuum environment. When it is in the vacuum environment, epoxy resin is continuously injected into the processing box through the feed pipe on the feed plate. When the processing box is full of epoxy resin, the continuous input will cause the pressure of the epoxy resin in the processing box to continue to increase, that is, the epoxy resin in the processing box is pressed into the special-shaped ring at the bottom of the processing box through the pressurizing hole, and enters the mold through the special-shaped ring to complete the pouring of the insulating coil.

[0007] Preferably, a filter ring is fixedly connected to the interior of the processing box, and the filter ring is made of polypropylene material. The upper and lower surfaces of the filter ring are respectively fixedly connected to the upper and lower surfaces inside the processing box, and a cavity is reserved between the filter ring and the side wall of the processing box. The filter ring is arranged on the outside of the pressurized hole.

[0008] Preferably, filter holes are symmetrically provided on both sides of the processing box, and the filter holes are arranged in pairs as a group. The outer sides of the filter holes are connected with adapter holes, and the adapter holes are symmetrically provided in the two side walls of the buckling ring.

[0009] Preferably, a filter tube is provided on the outer side of the adapter hole, and the filter tube is symmetrically fixedly connected to the outer surfaces of both sides of the buckle ring. The inner lower surface of the processing box is rotatably connected to a rotating shaft, and the top of the rotating shaft is arranged on the outer side of the feed pipe.

[0010] Preferably, a stirring plate is fixedly connected to the bottom of the rotating shaft, and five stirring plates are arranged at fixed intervals around the central axis of the rotating shaft. The stirring plates and the processing box are arranged perpendicular to each other, and through holes are evenly penetrated through the stirring plates. When epoxy resin is injected into the processing box, air is extracted out through the filter tube. During the epoxy resin injection process, the device is already in a vacuum environment, so the filter tube will be in a negative pressure state. Since a filter ring is provided in the processing box, and there is a certain gap between the filter ring and the processing box, and the gap between the filter ring and the processing box is connected to the filter tube through the adapter hole, the filter tube will cause the gap between the filter ring and the processing box to be in a negative pressure state, that is, a suction force is generated on the epoxy resin inside the processing box through the filter ring.

[0011] Preferably, the pouring mechanism includes a snap ring, the top of the snap ring is fixedly connected to the bottom of the special-shaped ring, the outer surface of the snap ring is fixedly connected to the inside of the snap-fit ​​cover, the bottom of the snap ring is sealed and fastened with a pouring tube, four of the pouring tubes are provided, and the pouring tubes are arranged in the internal cavity of the adapter ring.

[0012] Preferably, a plug-in groove is provided on the upper surface of the chassis, and the bottom of the pouring tube is fixedly plugged into the plug-in groove. A covering plate is provided inside the adapter ring, and the covering plate is arranged in an arc shape. The covering plates are fixedly connected to the outer surfaces of two pouring tubes. Four covering plates are provided, and the four covering plates are combined into a nearly tubular shape. A pouring groove is provided at the bottom of the pouring tube, and the cavity between the pouring groove and the covering plate is connected.

[0013] Preferably, a homogenizing tube is fixedly connected inside the special-shaped ring, a guide plate is provided inside the homogenizing tube, the top of the guide plate is fixedly connected to the inner upper surface of the processing box, the bottom of the guide plate is fixedly connected to the plug-in slot of the chassis, the two ends of the guide plate are arranged as straight plates, and the middle part of the guide plate is arranged as a spiral plate. When the epoxy resin passes through the special-shaped ring, it will enter the pouring tube at the bottom thereof. Since the pouring groove is provided at the bottom of the pouring tube, when the pouring tube is filled with epoxy resin, it will enter the inner cavity of the covering plate through the pouring groove, and then pouring will be performed from the bottom, so that the epoxy resin gradually immerses the insulating coil from the bottom to the top.

[0014] The present invention provides an epoxy resin vacuum casting device for transformer production, which has the following beneficial effects: 1. The epoxy resin vacuum pouring device used in transformer production can pre-store epoxy resin by setting a processing box, thereby ensuring the continuity of epoxy resin input into the mold and improving the overall quality of pouring. At the same time, the epoxy resin is pressurized and conveyed into the mold in the processing box to ensure that the material enters the mold more effectively, improve the mold filling rate, and reduce the formation of bubbles and pores, thereby improving the density and uniformity of the pouring of the insulating coil. The pressurized conveying can also greatly reduce the possibility of blockage of the epoxy resin and greatly improve the working stability of the device. At the same time, the pressurized conveying can also force shrinkage compensation by maintaining a certain external pressure, which is particularly important for controlling the volume change during the curing process and helps to reduce the internal stress and deformation of the cast insulating coil.

[0015] 2. The epoxy resin vacuum pouring device used in transformer production utilizes the characteristics of polypropylene to make the filter ring only filter gas, so when the epoxy resin is injected, the filter ring will continuously absorb the bubbles that may exist in the epoxy resin, further improving the quality of the epoxy resin, that is, greatly improving the product quality of the insulating coil after pouring. At the same time, in the process of injecting the epoxy resin into the processing box, by driving the rotating shaft to rotate, the rotating shaft can drive the stirring plate at the bottom to rotate, so that the epoxy resin in the processing box is stirred by the stirring plate, avoiding the slow flow of the epoxy resin in the processing box, resulting in partial solidification and affecting the normal progress of the pouring work. At the same time, since the stirring plate is evenly penetrated with reserved through holes, the stirring plate has a mesh structure, thereby achieving a small stirring resistance and a uniform epoxy resin effect.

[0016] 3. The epoxy resin vacuum pouring device used in transformer production can fully immerse the insulating coil with epoxy resin by pouring from bottom to top, and can also completely pour the cavity inside the covering plate, avoiding the situation that pouring from top to bottom will cause the mold cavity to not be completely poured and cause corner missing, further improving the pouring quality. At the same time, when the epoxy resin enters the inner side of the covering plate through the processing box, it will also pass through the outer surface of the guide plate, so that the epoxy resin will first enter the homogenizing tube and contact the outer surface of the guide plate in the homogenizing tube when passing through the pressure hole. At this time, since the top and bottom of the guide plate are straight plates and the middle part is spiral, the epoxy resin enters the covering plate through the processing box. When the epoxy resin enters the cavity on the inner side of the plate, it will be poured vertically for a distance first. Vertical pouring helps to push the gas upward, which is convenient for discharge from the top, thereby improving the casting yield of the insulating coil. At the same time, when the epoxy resin passes through the top of the guide plate, the spiral setting in the middle of the guide plate allows the gas to be further discharged from the material flow path, reducing bubbles and defects. The combination of vertical and spiral pouring can shorten the pouring time, improve production efficiency, and maintain the quality of the insulating coil. At the same time, when the epoxy resin passes through the spiral stage of the guide plate, it will continue to enter the bottom of the pouring tube through vertical transportation, resulting in vertical pouring in the final pouring stage, which helps the epoxy resin directly enter the bottom of the mold and ensure the initial filling of the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 It is a partial structural schematic diagram of the feeding mechanism of the present invention; Figure 3 It is a structural schematic diagram of the pouring mechanism of the present invention; Figure 4 It is a schematic diagram of the split structure of the feeding mechanism of the present invention; Figure 5 It is a schematic diagram of the installation structure of the pouring mechanism of the present invention; Figure 6 It is a schematic structural diagram of a processing box of the present invention; Figure 7 It is a schematic diagram of the disassembled structure of the pouring mechanism of the present invention; Figure 8 It is a structural schematic diagram of the guide plate of the present invention.

[0018] In the figure: 1. chassis; 2. adapter ring; 3. connecting rod; 4. buckle cover; 5. buckle ring; 6. feeding mechanism; 61. feeding plate; 62. feeding pipe; 63. processing box; 64. connecting groove; 65. pressurizing hole; 66. special-shaped ring; 67. filter ring; 68. filter hole; 69. adapter hole; 610. filter tube; 611. rotating shaft; 612. stirring plate; 7. pouring mechanism; 71. clamping ring; 72. pouring tube; 73. plug-in groove; 74. covering plate; 75. pouring trough; 76. homogenizing tube; 77. guide plate. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: an epoxy resin vacuum casting device for transformer production, comprising a chassis 1, an adapter ring 2 is fixedly connected to the upper surface of the chassis 1, a connecting rod 3 is symmetrically fixedly connected to the outer surface of the chassis 1, the middle part of the adapter ring 2 is hollow, a buckle cover 4 is buckled on the upper surface of the adapter ring 2, a buckle ring 5 is fixedly connected to the top of the buckle cover 4, and further comprising: A feeding mechanism 6, the feeding mechanism 6 is fixedly mounted on the inner side of the buckling ring 5, the bottom of the feeding mechanism 6 is fixedly connected to the upper surface of the buckling cover 4, and the feeding mechanism 6 is used to perform preliminary treatment on the epoxy resin when conveying the epoxy resin; A pouring mechanism 7, the pouring mechanism 7 is fixedly installed inside the adapter ring 2, the bottom of the pouring mechanism 7 is fixedly connected to the chassis 1, and the pouring mechanism 7 is used to pour the insulating coil through the epoxy resin passing through the feeding mechanism 6; The feeding mechanism 6 includes a feeding plate 61, which is horizontally arranged and arranged in the middle of the inner side of the buckle ring 5. A feeding pipe 62 is fixedly connected through the middle of the feeding plate 61. A processing box 63 is fixedly connected to the bottom surface of the feeding plate 61 by bolts. The processing box 63 is arranged in a disc shape. The interior of the processing box 63 is arranged in a hollow shape. A connecting groove 64 is opened on the top of the processing box 63. The connecting groove 64 is arranged in a circular shape. The bottom of the connecting groove 64 is connected to the internal cavity of the processing box 63, and the top of the connecting groove 64 is connected to the feeding pipe 62.

[0021] A pressurizing hole 65 is formed through the bottom of the processing box 63, and four pressurizing holes 65 are formed at fixed intervals around the central axis of the processing box 63. A special-shaped ring 66 is fixedly connected to the bottom of the processing box 63, and four special-shaped rings 66 are formed at fixed intervals around the central axis of the processing box 63. A through hole is reserved through the middle of the special-shaped ring 66, and the reserved through hole of the special-shaped ring 66 is set to be in a connected state with the pressurizing hole 65.

[0022] During operation, first lift the snap-on cover 4 upwards, then place the coil to be poured with epoxy resin into the pouring mechanism 7, and place the device in a vacuum environment. When in the vacuum environment, continuously inject epoxy resin into the processing box 63 through the feeding pipe 62 on the feeding plate 61. When the processing box 63 is full of epoxy resin, the pressure of the epoxy resin in the processing box 63 will continue to increase with the continuous input, that is, the epoxy resin in the processing box 63 will be pressed into the special-shaped ring at the bottom of the processing box 63 through the pressure hole 65, and enter the mold through the special-shaped ring to complete the pouring of the insulating coil. By setting the processing box 63, The epoxy resin can be pre-stored to ensure the continuity of the epoxy resin input into the mold and improve the overall quality of the casting. At the same time, the epoxy resin is pressurized and transported into the mold in the processing box 63 to ensure that the material enters the mold more effectively, improves the filling rate, and reduces the formation of bubbles and pores, thereby improving the density and uniformity of the insulating coil casting. The pressurized transportation can also greatly reduce the possibility of blockage of the epoxy resin and greatly improve the working stability of the device. At the same time, the pressurized transportation can also force shrinkage compensation by maintaining a certain external pressure, which is particularly important for controlling the volume change during the curing process and helps to reduce the internal stress and deformation of the cast insulating coil.

[0023] Second embodiment: Figures 1 to 8 As shown, a filter ring 67 is fixedly connected to the interior of the processing box 63. The filter ring 67 is made of polypropylene material. The upper and lower surfaces of the filter ring 67 are fixedly connected to the upper and lower surfaces of the interior of the processing box 63 respectively. A cavity is reserved between the filter ring 67 and the side wall of the processing box 63. The filter ring 67 is arranged on the outside of the pressurizing hole 65.

[0024] Filter holes 68 are symmetrically provided on both sides of the processing box 63 . The filter holes 68 are arranged in pairs as a group. The outer sides of the filter holes 68 are connected with adapter holes 69 . The adapter holes 69 are symmetrically provided in the two side walls of the buckling ring 5 .

[0025] The outer side of the adapter hole 69 is connected to a filter tube 610 which is symmetrically fixedly connected to the outer surfaces of both sides of the buckle ring 5 . The inner lower surface of the processing box 63 is rotatably connected to a rotating shaft 611 , and the top of the rotating shaft 611 is arranged on the outer side of the feed tube 62 .

[0026] The bottom of the rotating shaft 611 is fixedly connected with a stirring plate 612 . Five stirring plates 612 are arranged at fixed intervals around the central axis of the rotating shaft 611 . The stirring plates 612 and the processing box 63 are arranged perpendicular to each other. Through holes are evenly penetrated on the stirring plates 612 .

[0027] During operation, when epoxy resin is injected into the processing box 63, air is extracted outward through the filter tube 610. During the process of injecting epoxy resin, the device is already in a vacuum environment, so the filter tube 610 will be in a negative pressure state. Since a filter ring 67 is provided in the processing box 63, and there is a certain gap between the filter ring 67 and the processing box 63, and the gap between the filter ring 67 and the processing box 63 is connected to the filter tube 610 through the adapter hole 69, the filter tube 610 will cause the gap between the filter ring 67 and the processing box 63 to be in a negative pressure state, that is, a suction force is generated on the epoxy resin inside the processing box 63 through the filter ring 67. Since the filter ring 67 is made of polypropylene material, the characteristics of polypropylene are used to cause the filter ring 67 to only filter gas, so When the epoxy resin is injected, the bubbles that may exist in the epoxy resin will be continuously absorbed through the filter ring 67, so as to further improve the quality of the epoxy resin, that is, greatly improve the product quality of the insulating coil after casting. At the same time, in the process of injecting the epoxy resin into the processing box 63, by driving the rotating shaft 611 to rotate, the rotating shaft 611 can drive the stirring plate 612 at the bottom thereof to rotate, so that the epoxy resin in the processing box 63 is stirred by the stirring plate 612, so as to avoid the epoxy resin flowing slowly in the processing box 63 and causing partial solidification to affect the normal casting work. At the same time, because the stirring plate 612 is evenly penetrated with reserved through holes, the stirring plate 612 has a mesh structure, so as to achieve the effect of small stirring resistance and uniform epoxy resin.

[0028] The third embodiment: Figures 1 to 8 As shown, the pouring mechanism 7 includes a snap ring 71, the top of the snap ring 71 is fixedly connected to the bottom of the special-shaped ring 66, the outer surface of the snap ring 71 is fixedly connected to the inside of the snap-fit ​​cover 4, and the bottom of the snap ring 71 is sealed and snap-fitted with a pouring tube 72, four of which are arranged in the internal cavity of the adapter ring 2.

[0029] A plug-in groove 73 is provided on the upper surface of the chassis 1, and the bottom of the pouring tube 72 is fixedly plugged into the plug-in groove 73. A covering plate 74 is provided inside the adapter ring 2. The covering plate 74 is arranged in an arc shape and is fixedly connected to the outer surfaces of the pouring tubes 72. Four covering plates 74 are provided, and the four covering plates 74 are combined into a nearly tubular shape. A pouring groove 75 is provided at the bottom of the pouring tube 72, and the cavity between the pouring groove 75 and the covering plate 74 is connected.

[0030] A homogenizing tube 76 is fixedly connected inside the special-shaped ring 66, and a guide plate 77 is arranged inside the homogenizing tube 76. The top of the guide plate 77 is fixedly connected to the inner upper surface of the processing box 63, and the bottom of the guide plate 77 is fixedly connected to the plug-in slot 73 of the chassis 1. The two ends of the guide plate 77 are set as straight plates, and the middle part of the guide plate 77 is set as a spiral plate.

[0031] During operation, after the epoxy resin passes through the special-shaped ring, it will enter the pouring tube 72 at the bottom thereof. Since a pouring groove 75 is provided at the bottom of the pouring tube 72, when the pouring tube 72 is filled with epoxy resin, it will enter the inner cavity of the covering plate 74 through the pouring groove 75, and then pouring will be performed from the bottom, so that the epoxy resin gradually immerses the insulating coil from the bottom up. By pouring from bottom to top, the epoxy resin can fully immerse the insulating coil, and at the same time, the cavity inside the covering plate 74 can also be completely poured, avoiding the situation that pouring from top to bottom will cause the mold cavity to not be completely poured and corners to be missing, further improving the pouring quality. At the same time, in the process of the epoxy resin passing through the processing box 63 and entering the inner side of the covering plate 74, it will also pass through the outer surface of the guide plate 77, so that when the epoxy resin passes through the pressure hole 65, it will first enter the homogenizing tube 76 and the guide plate 7 in the homogenizing tube 76. 7 outer surface contact, at this time, because the top and bottom of the guide plate 77 are straight plate-shaped and the middle part is spiral-shaped, the epoxy resin will first be vertically poured for a distance when it passes through the processing box 63 and enters the inner cavity of the coating plate 74. The vertical pouring helps to push the gas upward, which is convenient for discharge from the top, thereby improving the casting yield of the insulating coil. At the same time, when the epoxy resin passes through the top of the guide plate 77, the spiral setting in the middle of the guide plate 77 allows the gas to be further discharged from the material flow path, thereby reducing bubbles and defects. The vertical and spiral combined pouring method can shorten the pouring time, improve production efficiency, and maintain the quality of the insulating coil. At the same time, when the epoxy resin passes through the spiral stage of the guide plate 77, it will continue to be vertically transported to the bottom of the pouring pipe 72, resulting in vertical pouring in the final pouring stage, which helps the epoxy resin to directly enter the bottom of the mold and ensure the initial filling of the cavity.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. An epoxy resin vacuum casting device for transformer production, comprising a chassis (1), characterized in that: The upper surface of the chassis (1) is fixedly connected to an adapter ring (2), the outer surface of the chassis (1) is symmetrically fixedly connected to a connecting rod (3), the middle portion of the adapter ring (2) is hollow, a buckle cover (4) is buckled on the upper surface of the adapter ring (2), and a buckle ring (5) is fixedly connected to the top of the buckle cover (4), and further comprises: A feeding mechanism (6), the feeding mechanism (6) being fixedly mounted on the inner side of the buckling ring (5), the bottom of the feeding mechanism (6) being fixedly connected to the upper surface of the buckling cover (4), the feeding mechanism (6) being used to perform preliminary processing on the epoxy resin when conveying the epoxy resin; A pouring mechanism (7), the pouring mechanism (7) being fixedly mounted inside the adapter ring (2), the bottom of the pouring mechanism (7) being fixedly connected to the chassis (1), the pouring mechanism (7) being used to pour the insulating coil using epoxy resin passing through the feeding mechanism (6); The feeding mechanism (6) comprises a feeding plate (61), the feeding plate (61) being arranged horizontally and arranged at the middle part of the inner side of the buckle ring (5); a feeding pipe (62) is fixedly connected and penetrated through the middle part of the feeding plate (61); a processing box (63) is fixedly connected to the bottom surface of the feeding plate (61) by means of bolts; the processing box (63) is arranged in a disc shape; the interior of the processing box (63) is arranged in a hollow shape; a connecting groove (64) is provided at the top of the processing box (63); the connecting groove (64) is arranged in a circular shape; the bottom of the connecting groove (64) is connected to the internal cavity of the processing box (63); and the top of the connecting groove (64) is connected to the feeding pipe (62).

2. The epoxy resin vacuum casting device for transformer production according to claim 1, characterized in that: A pressurizing hole (65) is provided through the bottom of the processing box (63), and four pressurizing holes (65) are provided at fixed intervals around the central axis of the processing box (63). A special-shaped ring (66) is fixedly connected to the bottom of the processing box (63), and four special-shaped rings (66) are provided at fixed intervals around the central axis of the processing box (63). A through hole is reserved through the middle of the special-shaped ring (66), and the reserved through hole of the special-shaped ring (66) is arranged to be in a communicating state with the pressurizing hole (65).

3. The epoxy resin vacuum casting device for transformer production according to claim 2, characterized in that: A filter ring (67) is fixedly connected to the interior of the processing box (63); the filter ring (67) is made of polypropylene material; the upper and lower surfaces of the filter ring (67) are respectively fixedly connected to the upper and lower surfaces inside the processing box (63); a cavity is reserved between the filter ring (67) and the side wall of the processing box (63); and the filter ring (67) is arranged on the outside of the pressurizing hole (65).

4. The epoxy resin vacuum casting device for transformer production according to claim 3, characterized in that: Filter holes (68) are symmetrically provided on both sides of the processing box (63), and the filter holes (68) are arranged in pairs in a group. The outer sides of the filter holes (68) are connected to adapter holes (69), and the adapter holes (69) are symmetrically provided in the two side walls of the buckle ring (5).

5. The epoxy resin vacuum casting device for transformer production according to claim 4, characterized in that: The outer side of the adapter hole (69) is connected to a filter tube (610), and the filter tube (610) is symmetrically fixedly connected to the outer surfaces of both sides of the buckle ring (5). The inner lower surface of the processing box (63) is rotatably connected to a rotating shaft (611), and the top of the rotating shaft (611) is arranged on the outer side of the feed tube (62).

6. The epoxy resin vacuum casting device for transformer production according to claim 5, characterized in that: A stirring plate (612) is fixedly connected to the bottom of the rotating shaft (611), and five stirring plates (612) are arranged at fixed intervals around the central axis of the rotating shaft (611). The stirring plates (612) and the processing box (63) are arranged perpendicular to each other, and through holes are evenly reserved on the stirring plates (612).

7. The epoxy resin vacuum casting device for transformer production according to claim 6, characterized in that: The pouring mechanism (7) comprises a snap ring (71), the top of the snap ring (71) is fixedly connected to the bottom of the special-shaped ring (66), the outer surface of the snap ring (71) is fixedly connected to the inside of the snap-fit ​​cover (4), and the bottom of the snap ring (71) is sealed and snap-fitted with a pouring tube (72), four of which are provided and arranged in the internal cavity of the adapter ring (2).

8. The epoxy resin vacuum casting device for transformer production according to claim 7, characterized in that: The upper surface of the chassis (1) is provided with a plug-in groove (73), the bottom of the pouring tube (72) is fixedly plugged into the plug-in groove (73), the interior of the adapter ring (2) is provided with a covering plate (74), the covering plate (74) is arranged in an arc shape, the covering plates (74) are fixedly connected to the outer surfaces of two pouring tubes (72), four covering plates (74) are provided, and the four covering plates (74) are combined into a nearly tubular shape, the bottom of the pouring tube (72) is provided with a pouring groove (75), and the cavity between the pouring groove (75) and the covering plate (74) is communicated.

9. The epoxy resin vacuum casting device for transformer production according to claim 8, characterized in that: A homogenizing tube (76) is fixedly connected inside the special-shaped ring (66), and a guide plate (77) is provided inside the homogenizing tube (76). The top of the guide plate (77) is fixedly connected to the inner upper surface of the processing box (63), and the bottom of the guide plate (77) is fixedly connected to the plug-in slot (73) of the chassis (1). The two ends of the guide plate (77) are arranged as straight plates, and the middle part of the guide plate (77) is arranged as a spiral plate.

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