Hot pressing equipment for transformer insulating plate processing

Abstract

The utility model discloses hot pressing equipment for processing transformer insulating plates, which comprises a workbench and a lifting plate connected to the workbench, the lifting plate is connected with a hydraulic cylinder used for driving the lifting plate to lift, the bottom of the lifting plate is provided with a connector, the connector is matched with a connector connected to a hot pressing plate, and the connector is connected with the workbench. The connector is connected with a connecting mechanism used for stably connecting the connector and the connector, the connecting mechanism comprises a plurality of positioning columns, a plurality of springs and a plurality of wedge-shaped blocks, the positioning columns are movably connected to the connector, and the springs are used for driving the wedge-shaped blocks to move in the direction away from the connector; and the lifting plate is connected with a driving mechanism for driving the plurality of positioning columns to synchronously move towards the middle direction of the connecting port. According to the utility model, the hot pressboards are convenient to disassemble and assemble, and the hot pressboards with proper sizes can be selected according to the sizes of boards, so that the waste of heat of the hot pressboards is effectively reduced.

Description

A hot pressing device for processing transformer insulation boards Technical Field

[0001] This utility model relates to the field of transformer insulation board processing technology, specifically a hot pressing device for processing transformer insulation boards. Background Technology

[0002] A transformer is an electrical device that uses the principle of electromagnetic induction to change AC voltage, current, and impedance. It is widely used in power transmission, distribution, and electronic circuits. It achieves efficient energy transfer through electromagnetic coupling and is one of the core components of a power system.

[0003] Existing transformers require insulating boards during assembly, primarily to isolate conductive parts at different potentials (such as between windings or between windings and the core) to ensure electrical insulation. These insulating boards undergo hot-pressing during processing to enhance their strength and stability.

[0004] Currently, adjustable hot press plates are commonly used for hot pressing of sheet materials. However, these hot press plates are usually fixed, which limits the heating area. When hot pressing smaller sheet materials, the parts of the sheet material that are not in contact with the hot press plate are heated, resulting in wasted heat. When hot pressing larger sheet materials, only the parts in contact with the hot press plate are heated, leading to uneven heating and affecting the processing quality of the sheet material. Summary of the Invention

[0005] The purpose of this utility model is to provide a hot pressing device for processing transformer insulation plates, which facilitates the assembly and disassembly of the hot pressing plate, allows for the selection of a suitable size hot pressing plate according to the size of the plate, and effectively reduces heat waste of the hot pressing plate, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot pressing device for processing transformer insulation materials, comprising a worktable and a lifting plate connected to the worktable. The lifting plate is connected to a hydraulic cylinder for driving the lifting plate to move up and down, and a connection port is provided at the bottom of the lifting plate. The connection port matches a connector connected to the hot pressing plate. The connection port is connected to a connecting mechanism for securely connecting the connection port and the connector. The connecting mechanism includes multiple positioning posts, multiple springs, and multiple wedge blocks. The positioning posts are movably connected to the connection port. The wedge blocks are connected to one end of the positioning posts. The other end of the positioning posts matches a slot provided in the connector. The springs drive the wedge blocks to move away from the connection port. The lifting plate is connected to a driving mechanism for driving the multiple positioning posts to move synchronously towards the center of the connection port.

[0007] Preferably, the top of the workbench is connected to multiple guide columns, and the lifting plate is slidably connected to the guide columns.

[0008] Preferably, a top plate is connected to the top of the guide column, the hydraulic cylinder is fixed to the top of the top plate, and the power output end of the hydraulic cylinder is connected to the lifting plate.

[0009] Preferably, the connecting mechanism further includes a plurality of spring seats, the spring seats being connected to the outside of the connecting port, and the positioning post passing through the spring seats.

[0010] Preferably, the spring is sleeved on the positioning post, and both ends of the spring are connected to the spring seat and the wedge block.

[0011] Preferably, the driving mechanism includes multiple cylinders, a lifting sleeve, and an inclined surface. The cylinders are connected to the top of the lifting plate, and the power output end of the cylinders is connected to the lifting sleeve. The inclined surface is disposed inside the lifting sleeve and matches the wedge block.

[0012] Preferably, the lifting plate is provided with a guide groove, and the lifting sleeve is slidably connected to the guide groove.

[0013] Preferably, the connection port is provided with multiple limiting grooves, which match the protrusions connected to the top of the connector.

[0014] Preferably, the lifting plate is threadedly connected with a positioning bolt, which matches the connecting groove provided in the lifting sleeve.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, by incorporating a connecting mechanism and a driving mechanism, allows a cylinder to drive the lifting sleeve to rise and fall. When the lifting sleeve descends, it slides relative to the wedge block, driving multiple positioning pins to move synchronously towards the connection port. The spring is gradually compressed until the positioning pins press firmly into the slots of the connector, thus positioning the hot press plate and improving the stability of the connection between the hot press plate and the lifting plate. When the lifting sleeve rises, it moves relative to the wedge block, and the compressed spring drives the wedge block to move back, simultaneously causing the positioning pins to move back, separating them from the slots and loosening the hot press plate for easy disassembly. A suitable size hot press plate can be selected according to the size of the sheet material, effectively reducing heat waste and making it highly practical. Attached Figure Description

[0016] Figure 1 is a perspective view of this utility model;

[0017] Figure 2 is a schematic diagram of the connection structure between the hot press plate and the lifting plate of this utility model;

[0018] Figure 3 is a sectional perspective view of Figure 2;

[0019] Figure 4 is a partial view of Figure 3;

[0020] Figure 5 is a schematic diagram of the connection structure between the positioning bolt and the lifting sleeve of this utility model.

[0021] In the diagram: 1. Workbench; 2. Hot press plate; 3. Lifting plate; 4. Guide column; 5. Top plate; 6. Hydraulic cylinder; 7. Pneumatic cylinder; 8. Positioning bolt; 9. Lifting sleeve; 10. Connector; 11. Protrusion; 12. Connection port; 13. Limiting groove; 14. Guide groove; 15. Positioning column; 16. Wedge block; 17. Slot; 18. Spring seat; 19. Spring; 20. Inclined surface; 21. Connecting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 5. This utility model provides a hot pressing device for processing transformer insulation materials, including a workbench 1 and a lifting plate 3 connected to the workbench 1. The lifting plate 3 is connected to a hydraulic cylinder 6 for driving the lifting plate 3 to move up and down, and a connection port 12 is provided at the bottom of the lifting plate 3. The connection port 12 matches the connector 10 connected to the hot pressing plate 2. The connection port 12 is connected to a connecting mechanism for a stable connection between the connection port 12 and the connector 10. The connecting mechanism includes multiple positioning posts 15, multiple springs 19, and multiple wedge blocks 16. There are four positioning posts 15 in total, with adjacent included angles of 90°. There are also four corresponding springs 19 and four corresponding wedge blocks 16. The positioning posts 15 are movably connected to the connection port 12, and the use of spring seats 18 can improve the stability of the movement of the positioning posts 15 and play a good guiding role. A wedge block 16 is connected to one end of a positioning post 15, and the other end of the positioning post 15 matches a slot 17 located in the connector 10. The other end of the positioning post 15 has a beveled structure. When the positioning post 15 is pressed against the slot 17, it applies an upward pushing force to the connector 10, thereby improving the stability of the connection between the hot press plate 2 and the lifting plate 3. A spring 19 is used to drive the wedge block 16 to move away from the connector 12. The lifting plate 3 is connected to a drive mechanism for driving multiple positioning posts 15 to move synchronously towards the center of the connector 12.

[0024] The sheet material is placed on top of the workbench 1. The hydraulic cylinder 6 drives the lifting plate 3 to descend, which in turn drives the hot pressing plate 2 to descend, so that the hot pressing plate 2 presses against the sheet material for easy hot pressing.

[0025] When installing the hot press plate 2, the connector 10 is connected to the connector 12. Then, the cylinder 7 drives the lifting sleeve 9 to descend. The inclined surface 20 on the inner side of the lifting sleeve 9 slides relative to the wedge block 16, which can drive the four wedge blocks 16 to move synchronously towards the connector 12, thereby driving the positioning post 15 to move forward, so that the end of the positioning post 15 is connected to the slot 17. At this time, the spring 19 is in a compressed state, thereby realizing the installation of the hot press plate 2 and improving the stability of the connection between the hot press plate 2 and the lifting plate 3.

[0026] When disassembling the hot press plate 2, the cylinder 7 drives the lifting sleeve 9 to rise, and the compressed spring 19 drives the wedge block 16 to move back, which in turn drives the positioning post 15 to move backward, so that the positioning post 15 is separated from the slot 17, thereby loosening the connector 10 and facilitating the disassembly of the hot press plate 2. The appropriate size of the hot press plate 2 can be selected according to the size of the plate, thereby effectively reducing the waste of heat from the hot press plate 2.

[0027] The top of the workbench 1 is connected to multiple guide columns 4, and the lifting plate 3 is slidably connected to the guide columns 4. There are four guide columns 4 in total, which play a good guiding role for the lifting plate 3 and improve the stability of the lifting plate 3 and the hot press plate 2.

[0028] The top of the guide column 4 is connected to the top plate 5, the hydraulic cylinder 6 is fixed to the top of the top plate 5, and the power output end of the hydraulic cylinder 6 is connected to the lifting plate 3.

[0029] The connecting mechanism also includes multiple spring seats 18, which are connected to the outside of the connecting port 12, and the positioning post 15 passes through the spring seat 18.

[0030] Spring 19 is fitted onto positioning post 15, and both ends of spring 19 are connected to spring seat 18 and wedge block 16.

[0031] The drive mechanism includes multiple cylinders 7, a lifting sleeve 9, and an inclined surface 20. The cylinders 7 are connected to the top of the lifting plate 3, and their power output ends are connected to the lifting sleeve 9. The inclined surface 20 is located inside the lifting sleeve 9 and matches the wedge block 16. The inclined surface 20 is a smooth surface, which reduces the contact friction with the wedge block 16. There are three cylinders 7 in total, with an adjacent included angle of 120°.

[0032] The lifting plate 3 is provided with a guide groove 14, and the lifting sleeve 9 is slidably connected to the guide groove 14. The guide groove 14 guides the lifting sleeve 9 and improves the stability of the lifting sleeve 9.

[0033] The connector 12 has multiple limiting grooves 13, which match the protrusions 11 connected to the top of the connector 10. There are four limiting grooves 13 and four protrusions 11. When the connector 10 is connected to the connector 12, the protrusions 11 are inserted into the corresponding limiting grooves 13, which can initially limit the connector 10 and prevent rotation.

[0034] There are four slots 17, and they are on the same vertical plane as the corresponding protrusions 11. When the protrusions 11 are connected to the limiting grooves 13, the slots 17 are aligned with the positioning posts 15, which facilitates the subsequent docking of the positioning posts 15 with the slots 17.

[0035] The lifting plate 3 is threadedly connected to a positioning bolt 8, which matches the connecting groove 21 of the lifting sleeve 9. After the positioning pin 15 is connected to the slot 17, the positioning bolt 8 is rotated so that its end connects with the connecting groove 21, further limiting the lifting sleeve 9. At this time, the cylinder 7 can stop. When moving the lifting sleeve 9, the positioning bolt 8 is rotated so that its end separates from the connecting groove 21, facilitating subsequent lifting and lowering movements of the lifting sleeve 9.

[0036] Working principle: The sheet material is placed on top of the workbench 1. The hydraulic cylinder 6 drives the lifting plate 3 and the hot pressing plate 2 to descend, pressing the hot pressing plate 2 onto the sheet material for heat pressing. During installation of the hot pressing plate 2, the connector 10 is inserted into the connector 12, aligning the protrusion 11 with the limiting groove 13. Then, the cylinder 7 drives the lifting sleeve 9 to descend, causing the inclined surface 20 to slide relative to the wedge block 16. This moves the four wedge blocks 16 synchronously towards the connector 12, thereby moving the positioning pin 15 forward. The end of the positioning pin 15 presses against the slot 17, at which point the spring 19 is compressed. This positions the hot pressing plate 2, improving the stability of the connection between the hot pressing plate 2 and the lifting plate 3. Finally, the positioning bolt 8 is used to lock the lifting sleeve 9. When the hot press plate 2 needs to be disassembled, first loosen the lifting sleeve 9 by rotating the positioning bolt 8, then the cylinder 7 drives the lifting sleeve 9 to move upward, and the compressed spring 19 drives the wedge block 16 to move backward, which in turn drives the positioning post 15 to move backward, so that the positioning post 15 is separated from the slot 17, thereby loosening the connector 10. At this time, the hot press plate 2 is in a loosened state, which facilitates disassembly. The appropriate size of the hot press plate can be selected according to the size of the plate, thereby effectively reducing the waste of heat from the hot press plate 2.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing device for processing transformer insulation boards, characterized in that, The device includes a workbench (1) and a lifting plate (3) connected to the workbench (1). The lifting plate (3) is connected to a hydraulic cylinder (6) for driving the lifting plate (3) to rise and fall. The bottom of the lifting plate (3) is provided with a connection port (12). The connection port (12) matches the connector (10) connected to the hot press plate (2). The connection port (12) is connected to a connection mechanism for securely connecting the connection port (12) and the connector (10). The connection mechanism includes multiple positioning columns (15) and multiple springs (19). Multiple wedge blocks (16), the positioning post (15) is movably connected to the connection port (12), the wedge block (16) is connected to one end of the positioning post (15), the other end of the positioning post (15) is matched with the slot (17) provided in the connector (10), the spring (19) is used to drive the wedge block (16) to move away from the connection port (12), and the lifting plate (3) is connected to a drive mechanism for driving multiple positioning posts (15) to move synchronously towards the middle of the connection port (12).

2. The hot pressing equipment for processing transformer insulation plates according to claim 1, characterized in that, The top of the workbench (1) is connected to multiple guide columns (4), and the lifting plate (3) is slidably connected to the guide columns (4).

3. The hot pressing equipment for processing transformer insulation boards according to claim 2, characterized in that, The top of the guide column (4) is connected to the top plate (5), the hydraulic cylinder (6) is fixed to the top of the top plate (5), and the power output end of the hydraulic cylinder (6) is connected to the lifting plate (3).

4. The hot pressing equipment for processing transformer insulation plates according to claim 1, characterized in that, The connecting mechanism also includes a plurality of spring seats (18), which are connected to the outside of the connecting port (12), and the positioning post (15) passes through the spring seat (18).

5. The hot pressing equipment for processing transformer insulation plates according to claim 4, characterized in that, The spring (19) is fitted onto the positioning post (15), and both ends of the spring (19) are connected to the spring seat (18) and the wedge block (16).

6. The hot pressing equipment for processing transformer insulation plates according to claim 1, characterized in that, The drive mechanism includes multiple cylinders (7), a lifting sleeve (9), and an inclined surface (20). The cylinders (7) are connected to the top of the lifting plate (3), and the power output end of the cylinders (7) is connected to the lifting sleeve (9). The inclined surface (20) is located inside the lifting sleeve (9), and the inclined surface (20) matches the wedge block (16).

7. The hot pressing equipment for processing transformer insulation plates according to claim 6, characterized in that, The lifting plate (3) is provided with a guide groove (14), and the lifting sleeve (9) is slidably connected to the guide groove (14).

8. The hot pressing equipment for processing transformer insulation plates according to claim 1, characterized in that, The connector (12) is provided with a plurality of limiting grooves (13), which are matched with the protrusion (11) connected to the top of the connector (10).

9. The hot pressing equipment for processing transformer insulation plates according to claim 1, characterized in that, The lifting plate (3) is threadedly connected with a positioning bolt (8), which matches the connecting groove (21) provided in the lifting sleeve (9).

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