Vacuum pouring insulating part demolding tool for GIS (Gas Insulated Switchgear)

Abstract

The utility model discloses a vacuum pouring insulating part demoulding tool for a GIS (Gas Insulated Switchgear), which comprises a product positioning plate, the lower part of the product positioning plate is detachably connected with an insulator product formed by pouring in a mould, and a plurality of guide columns are uniformly and fixedly arranged on the upper part of the product positioning plate along the circumferential direction; a transition plate is arranged on the multiple guide columns in a common sliding mode, and a plurality of vertical supporting pieces are evenly and fixedly arranged on the outer side portion of the transition plate in the circumferential direction. The upper ends of the guide columns are jointly and fixedly connected with a top plate, a threaded through hole is formed in the middle of the top plate, a threaded rod in threaded connection with the threaded through hole is rotationally arranged in the middle of the top plate, and the lower end of the threaded rod is rotationally connected with the middle of the transition plate. According to the utility model, demolding operation after casting molding can be carried out on various different insulator products, and the whole product surface is uniformly stressed during demolding, so that the situation that the product cracks or follow-up air leakage and the like caused by non-uniform stress of the product due to inclined force application is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of tooling for the production of GIS insulators, and in particular to a demolding tooling for vacuum casting insulators used in GIS. Background Technology

[0002] The production of high-voltage insulators for GIS (Gas Insulated Switchgear) requires efficient and stable processes to meet the demands of large-scale production. In the vacuum casting process for GIS insulators, high-molecular materials such as epoxy resin are typically used. These materials shrink during curing, easily leading to difficulties in demolding. Epoxy resin releases heat during curing, which may cause mold deformation or damage, affecting demolding performance. Traditional mechanical demolding methods (such as ejector pins and push plates) may cause scratches on the insulator surface or damage to the mold, affecting product quality and mold life. Existing demolding methods are inefficient when handling complex structures, easily leading to extended production cycles. Therefore, existing demolding methods have certain limitations, and existing demolding fixtures need improvement in terms of demolding efficiency, mold and product protection, and adaptability to complex structures. Summary of the Invention

[0003] The purpose of this invention is to provide a demolding fixture for vacuum casting insulating parts for GIS, thereby solving the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a demolding fixture for vacuum-cast insulating components used in GIS, comprising a product positioning plate. The lower part of the product positioning plate is detachably connected to the insulator product cast in the mold. Multiple guide posts are uniformly fixedly arranged circumferentially on the upper part of the product positioning plate. A transition plate is slidably arranged on the multiple guide posts. Multiple vertical support members are uniformly fixedly arranged circumferentially on the outer side of the transition plate. The upper ends of the multiple guide posts are uniformly fixedly connected to a top plate. A threaded through hole is opened in the middle of the top plate, and a screw threadedly connected to it is rotatably arranged. The lower end of the screw is rotatably connected to the middle part of the transition plate.

[0006] Furthermore, the product positioning plate has multiple connection holes, and the product positioning plate is detachably connected to the insulator product through multiple connecting bolts passing through the connection holes.

[0007] Furthermore, multiple lifting rings are evenly fixedly arranged on the upper part of the transition plate along the circumference.

[0008] Furthermore, the transition plate is provided with a plurality of guide sleeves that slide in cooperation with each of the guide posts.

[0009] Furthermore, a fixing post is provided at the bottom of the top plate between each pair of adjacent guide posts.

[0010] Furthermore, a handle for driving its rotation is fixedly provided at the upper end of the screw.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention enables the demolding of various insulator products after casting. During demolding, the three supports of the transition plate are supported on the mold, preventing damage to the product itself. The screw drive system achieves high-precision linear motion, ensuring high positioning and repeatability, facilitating convenient and repetitive operation. Demolding ensures uniform force distribution across the entire product surface, preventing uneven force application that could lead to cracks or subsequent air leaks. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural diagram of the insulator product connected according to this utility model;

[0016] Explanation of reference numerals in the attached drawings: 1. Product positioning plate; 2. Insulator product; 3. Connecting hole; 4. Connecting bolt; 5. Guide post; 6. Transition plate; 7. Guide sleeve; 8. Support component; 9. Lifting ring; 10. Top plate; 11. Fixing post; 12. Screw; 13. Handle. Detailed Implementation

[0017] like Figures 1-2 As shown, a demolding fixture for vacuum-cast insulating components used in GIS includes a product positioning plate 1. The lower part of the product positioning plate 1 is detachably connected to an insulator product 2 cast in a mold. Specifically, the product positioning plate 1 has multiple connecting holes 3, and the product positioning plate 1 is detachably connected to the insulator product 2 via multiple connecting bolts 4 that pass through the connecting holes 3 and are adapted to corresponding threaded holes on the insulator product 2. In this embodiment, the multiple connecting holes 3 are respectively located at different positions on the product positioning plate 1. When connecting insulator products 2 of different specifications, it is only necessary to find the corresponding connecting hole 3 on the product positioning plate 1, thereby enabling this utility model to be used for a variety of different products.

[0018] The product positioning plate 1 has multiple guide posts 5 evenly fixedly arranged circumferentially on its upper part. A transition plate 6 is slidably mounted on the guide posts 5. The transition plate 6 has multiple guide sleeves 7 that slidably engage with each of the guide posts 5. Each guide post 5 and guide sleeve 7 is made of bearing steel and has undergone carburizing heat treatment, making it sturdy, durable, and resistant to deformation. Multiple vertical support members 8 are evenly fixedly arranged circumferentially on the outer side of the transition plate 6, and multiple lifting rings 9 are evenly fixedly mounted circumferentially on the upper part of the transition plate 6.

[0019] The upper ends of the multiple guide posts 5 are fixedly connected to the top plate 10, and the top plate 10, the product positioning plate 1, and the transition plate 6 are arranged in parallel. At the bottom of the top plate 10, a fixing post 11 is provided between each pair of adjacent guide posts 5.

[0020] The top plate 10 has a threaded through hole in the middle and a screw 12 threadedly connected to it is rotatably installed thereon. The lower end of the screw 12 is rotatably connected to the middle part of the transition plate 6, and the upper end of the screw 12 is fixedly provided with a handle 13 for driving its rotation.

[0021] In practical application, this invention uses an overhead crane with lifting rings on a transition plate to hoist the entire fixture onto the mold for casting insulator products. At this point, the supports on the transition plate do not contact the upper surface of the mold; instead, the product positioning plate contacts the upper surface of the cast insulator product within the mold. After aligning the corresponding connecting holes on the product positioning plate with the threaded holes on the insulator product, the product positioning plate is securely connected to the insulator product using connecting bolts. Then, the operator rotates the screw using the handle. Since the product positioning plate and top plate cannot move downwards at this time, the screw, during rotation, drives the transition plate and multiple supports downwards until the lower end faces of the supports contact the lower end face of the mold. Since multiple support components, transition plates, and the screw itself can no longer move downwards, while the top plate and screw maintain a threaded connection, continuing to rotate the screw will cause the top plate to drive the product positioning plate and the insulator product upwards until the insulator product is completely detached from the mold and the screw stops rotating. Then, an overhead crane is used to lift the tooling and product to the corresponding finishing table, the screw is rotated in the opposite direction to its original position, and the connecting screw is removed, thereby detaching the insulator product from the product positioning plate, and the operation is completed.

[0022] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A demolding tool for vacuum-poured insulation parts for GIS, characterized in that: The product positioning plate includes a product positioning plate, the lower part of which is detachably connected to an insulator product cast in a mold. Multiple guide posts are uniformly fixedly arranged circumferentially on the upper part of the product positioning plate. A transition plate is slidably arranged on the multiple guide posts. Multiple vertical support members are uniformly fixedly arranged circumferentially on the outer side of the transition plate. The upper ends of the multiple guide posts are uniformly fixedly connected to a top plate. A threaded through hole is opened in the middle of the top plate, and a screw threadedly connected to it is rotatably arranged. The lower end of the screw is rotatably connected to the middle of the transition plate.

2. The vacuum-pouring insulation member stripping tool for GIS according to claim 1, characterized in that: The product positioning plate has multiple connection holes, and the product positioning plate is detachably connected to the insulator product through the connection bolts passing through the connection holes.

3. The vacuum-potted insulator demolding tool for GIS according to claim 1, characterized in that: The upper part of the transition plate is uniformly fixed with multiple lifting rings along the circumference.

4. The vacuum-potted insulator demolding tool for GIS according to claim 3, characterized in that: The transition plate is provided with a plurality of guide sleeves that slide in cooperation with each of the guide posts.

5. The vacuum-potted insulator demolding tool for GIS according to claim 1, characterized in that: At the bottom of the top plate, there are fixed posts between each pair of adjacent guide posts.

6. The demolding fixture for vacuum-cast insulating parts for GIS according to claim 1, characterized in that: The upper end of the screw is fixedly provided with a handle for driving its rotation.

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