A demolding tool

Abstract

The application provides a demolding tool, and relates to the technical field of demolding. The demolding tool comprises a tool main body and a demolding assembly. One end of the tool main body is provided with a lifting ring, and the end of the tool main body away from the lifting ring is provided with a positioning part. The demolding assembly comprises a connecting piece for connecting an insulator. The connecting piece is installed on the tool main body through a folding arm. The connecting piece can move along the direction of approaching or moving away from the tool main body through the folding arm, and the connecting piece is hingedly installed on the end of the folding arm away from the tool main body. The connecting piece is circumferentially and uniformly arranged with multiple connecting pieces on the tool main body. The demolding tool of the embodiment can be adapted to multiple specifications, especially the increasing large-size basin-type insulators when being opened. The demolding tool is compact in the storage state, flexible in movement, and reduces the operation interference and safety hazards.

Description

Technical Field

[0001] This application relates to the field of demolding technology, and more specifically, to a demolding tooling. Background Technology

[0002] Pot-type insulators are widely used in equipment such as power switchgear. After casting and curing, demolding is a key production step.

[0003] In related technologies, demolding fixtures for basin insulators typically consist of components such as a fixed frame, and the fixture dimensions are often larger than the product dimensions. As the variety and size of products increase, the outer diameter of basin insulators also becomes larger, and the demolding fixtures follow suit, becoming increasingly larger and heavier. This leads to cramped placement on-site, interference during operation, and potential safety hazards. Utility Model Content

[0004] In order to at least address some of the deficiencies mentioned in the related technologies, this application provides a demolding tool.

[0005] To achieve the above objectives, this application provides a demolding fixture for demolding pot-type insulators. The demolding fixture includes a fixture body and a demolding assembly. A lifting ring is provided at one end of the fixture body, and a positioning part is provided at the end of the fixture body away from the lifting ring. The demolding assembly includes a connector for connecting the insulator; the connector is mounted on the fixture body via a folding arm, and the connector can move along the direction close to or away from the fixture body via the folding arm, and the connector is hinged to the end of the folding arm away from the fixture body. Multiple connectors are evenly distributed around the circumference of the fixture body.

[0006] Furthermore, the tooling body includes a top and a bottom, the lifting ring is mounted on the top side away from the bottom, and the positioning part is disposed on the bottom side away from the top. The top and the bottom can be brought closer together or moved away from each other by the folding arm.

[0007] Furthermore, the folding arm includes a first segment and a second segment. One end of the first segment is hinged to the top, and the end of the first segment away from the top is hinged to the connector. One end of the second segment is hinged to the bottom, and the end of the second segment away from the bottom is hinged to the connector.

[0008] Furthermore, the connector is provided with a connecting groove, and the ends of the first segment and the second segment are both hinged to the connecting groove.

[0009] Furthermore, the connector is provided with at least one through hole, and the insulator is provided with threaded holes evenly distributed axially at its edge, and the through hole can be provided in correspondence with the threaded hole.

[0010] Furthermore, when the through hole and the threaded hole are correspondingly arranged, the end of the connector away from the tooling body extends horizontally to the outside of the insulator. A pusher is provided at the end of the connector away from the tooling body.

[0011] Furthermore, the connector has a push hole at one end, and the push member is slidably installed in the push hole. One end of the push member is provided with a handle, and the end of the push member away from the handle can abut against the mold of the insulator.

[0012] Furthermore, a positioning hole is provided at the center of the insulator, and a positioning pin is provided on the positioning part facing the insulator, and the positioning pin can be inserted into the positioning hole.

[0013] Furthermore, the positioning pin is made of Teflon.

[0014] Furthermore, a protective layer is provided on the side of the connector facing the insulator, and the protective layer is made of Teflon material.

[0015] With the above technical solution, when using the demolding fixture of this application to demold a pot-type insulator, the hoisting equipment moves the demolding fixture above the pot-type insulator to be demolded through the lifting ring, and slowly lowers the demolding fixture. During the lowering process, the positioning part on the main body of the fixture is used to complete the relative positioning of the demolding fixture and the pot-type insulator.

[0016] After positioning, pull the connector in the demolding assembly to move it towards or away from the main body of the tooling. After moving to the edge of the pot insulator, connect the multiple connectors evenly distributed axially on the main body of the tooling to the insulator in sequence. The hoisting equipment can then lift the demolding tooling through the lifting rings to complete the demolding of the pot insulator.

[0017] This demolding fixture features a folding arm structure, allowing the connectors to expand or contract in directions close to or away from the fixture body. During actual demolding, the position of the connectors can be flexibly adjusted according to the outer diameter of the pot-type insulator to be demolded, ensuring accurate alignment and connection to the insulator's edge. This enhances the fixture's versatility, enabling it to adapt to various specifications, especially the increasing number of large-sized pot-type insulators. It avoids the need for multiple fixed-size fixtures due to product size variations, significantly reducing production costs and management complexity.

[0018] Secondly, after demolding, multiple connectors can be folded up near the main body of the tooling using folding arms, achieving overall structural shrinkage. This feature significantly reduces the space occupied by the tooling when not in use, facilitating centralized storage and transportation, effectively alleviating the problem of crowded tooling placement on site, and improving the space utilization rate of the work area.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the demolding fixture provided in an embodiment of the present application from one perspective. Figure 2 This is a structural schematic diagram from another perspective of the demolding fixture provided in the embodiments of this application; Figure 3 This is a structural schematic diagram from another perspective of the demolding tooling provided in the embodiments of this application.

[0022] icon: 100-Main tooling; 110-Top; 111-Lifting ring; 120-Bottom; 200-Demolding assembly; 210-Connector; 211-Connecting groove; 212-Through hole; 213-Push-out component; 214-Handle; 220-Folding arm; 221-First section; 222-Second section; 300-Insulator; 400-Mold. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This embodiment provides a demolding fixture to solve the problem in related technologies that demolding fixtures can only demold single-size basin insulators and occupy a large space.

[0027] Please see Figures 1 to 3 This embodiment provides a demolding fixture for demolding pot-type insulators. The demolding fixture includes a fixture body 100 and a demolding assembly 200. A lifting ring 111 is provided at one end of the fixture body 100, and a positioning part is provided at the end of the fixture body 100 away from the lifting ring 111. The demolding assembly 200 includes a connector 210 for connecting the insulator 300. The connector 210 is mounted on the fixture body 100 via a folding arm 220. The connector 210 can move along the direction close to or away from the fixture body 100 via the folding arm 220, and the connector 210 is hingedly mounted on the end of the folding arm 220 away from the fixture body 100. Multiple connectors 210 are evenly distributed around the circumference of the fixture body 100.

[0028] Specifically, before use, first check whether the overall structure of the demolding fixture is intact, confirm that the main body 100 of the fixture is not deformed, the lifting ring 111 is firm and reliable, the folding arm 220 moves flexibly, the connecting parts 210 are undamaged, and all hinge parts are well lubricated to ensure that the equipment is in normal working condition.

[0029] Based on the outer diameter of the basin-type insulator 300 to be demolded, pre-adjust the positions of each connector 210 in the demolding assembly 200. By pushing or pulling the folding arm 220, unfold the connector 210 in a direction away from the fixture body 100, adjusting it to a radius position matching the edge of the basin-type insulator 300. Start the hoisting equipment to smoothly lift and move the demolding fixture directly above the basin-type insulator 300 to be demolded. Slowly lower the demolding fixture, aligning the positioning part at the lower end of the fixture body 100 with the center or outer edge positioning structure of the basin-type insulator 300. The positioning part serves as a guide and limiter, ensuring that the demolding fixture remains coaxial with the basin-type insulator 300.

[0030] Once the main fixture 100 has descended into position, each connector 210 is approximately positioned near the edge of the basin insulator 300. At this point, the position can be finely adjusted or the folding arm 220 can be manually pushed gently to ensure that each connector 210 is precisely aligned with and fits against the demolding connection point of the basin insulator 300, such as the pre-reserved slot, threaded hole, or edge flange. Reliably connect each connector 210 to the basin insulator 300. The connection method can be selected according to the design, using snap-fit, bolt fastening, or hooks, to ensure a stable connection during lifting and prevent detachment.

[0031] After confirming that all connectors 210 are correctly installed and locked, the hoisting equipment is started, and a vertical upward pulling force is applied to the demolding fixture through the lifting rings 111. The pulling force is transmitted through the fixture body 100 and the folding arm 220 to the connectors 210, and then acts on the pot insulator 300. Under the action of a uniform and synchronous lifting force, the pot insulator 300 is smoothly released from the mold 400, completing the demolding process.

[0032] After demolding, the demolding fixture, along with the demolded basin-type insulators 300, is moved to a designated area. Once the insulators 300 are transferred to the next process, each connector 210 is disconnected from the insulator. Manually or with an auxiliary device, each connector 210 is pushed along the folding arm 220 towards the fixture body 100, causing it to retract close to the fixture body 100. The folding arm 220 can be folded or slid back, achieving a compact overall structure. The retracted demolding fixture has a significantly reduced volume and can be neatly stored on a tool rack or transfer cart, saving workshop space, facilitating management, and preparing for future use.

[0033] The demolding fixture of this embodiment can be adapted to various specifications, especially the increasingly large-sized basin insulators 300, avoiding the need for multiple fixed-size fixtures due to product size variations, thus reducing production costs and management difficulty. The deployable and retractable nature of the demolding fixture also improves on-site operational safety. Traditional large fixed fixtures are bulky, inconvenient to move, and prone to collisions with other equipment or personnel during hoisting and storage. In contrast, the demolding fixture of this embodiment is compact and flexible in its retracted state, reducing operational interference and safety hazards, and improving work efficiency and on-site management.

[0034] In one embodiment, exemplarily, such as Figures 1 to 3 As shown, the main body of the tooling 100 includes a top 110 and a bottom 120. A lifting ring 111 is mounted on the top 110, away from the bottom 120, and a positioning part is located on the bottom 120, away from the top 110. The top 110 and bottom 120 can move closer or further apart via a folding arm 220. Since the positioning part is located at the bottom 120 and the lifting ring 111 is located at the top 110, they are at opposite ends of the tooling. During hoisting, gravity causes the top 110 to sag naturally, while the bottom 120 is supported by the reaction force from the positioning part contacting the insulator 300, thus forming a stable suspension and support structure. This ensures that the positioning part preferentially contacts and stabilizes on the insulator 300, ensuring that the tooling and product remain coaxial, preventing lateral forces during demolding due to eccentricity, which could damage the product or cause tooling jamming.

[0035] In one embodiment, exemplarily, such as Figures 1 to 3 As shown, the folding arm 220 includes a first segment 221 and a second segment 222. One end of the first segment 221 is hinged to the top 110, and the end of the first segment 221 away from the top 110 is hinged to the connector 210. One end of the second segment 222 is hinged to the bottom 120, and the end of the second segment 222 away from the bottom 120 is hinged to the connector 210. The first segment 221 and the second segment 222 meet at the connector 210 to form a four-bar linkage mechanism. In the initial stage of demolding, before the connector 210 is fixed, the top 110 and the bottom 120 can move relative to each other axially under the guidance of the folding arm 220. In actual use, the positioning part of the bottom 120 can be precisely aligned with the basin insulator 300 and lightly touched for positioning. At this time, the height of the top 110 can still be finely adjusted with the hoisting equipment, realizing a step-by-step operation of positioning first and loading later. To avoid product damage caused by inaccurate positioning or forced contact due to tooling rigidity, and to improve controllability and safety in the initial stage of demolding.

[0036] Since the connector 210 connects both the first segment 221 and the second segment 222, its movement trajectory is constrained by the combined action of the two articulated arms. When the connector 210 is pushed or pulled, the first segment 221 and the second segment 222 rotate synchronously, causing the connector 210 to move smoothly radially along the designed path. Compared to a single-arm structure, the dual-arm linkage makes the unfolding and retraction process of the connector 210 smoother, less prone to jamming or swaying, ensuring consistent movement of multiple connectors 210 when they are evenly distributed circumferentially, and improving adjustment accuracy. This is especially suitable for large-diameter basin-type insulators 300, where the edge is far from the center, requiring the connector 210 to have a large radial adjustment stroke. The dual-arm structure provides reasonable mechanical support and range of motion, ensuring the structural rationality of this embodiment.

[0037] After all connectors 210 are connected to the pot insulator 300, the demolding loading stage begins. At this time, the hoisting equipment applies an upward pulling force, which is transmitted to the top 110 and then to the connectors 210 via the first section 221; simultaneously, the bottom 120 is also connected to the same connector 210 via the second section 222. Under the pulling force, the first section 221 and the second section 222 work together on the connector 210, stabilizing it at the edge of the insulator 300. At this point, the entire structure forms a self-balancing multi-link force-bearing system, with clearly defined forces at each hinge point, no tendency for relative sliding or loosening, and significantly enhanced overall rigidity, equivalent to a rigid support structure. This ensures that the demolding force is transmitted evenly, synchronously, and stably to the pot insulator 300, avoiding localized stress concentration that could lead to cracking or deformation.

[0038] In one embodiment, exemplarily, such as Figures 1 to 3 As shown, the connector 210 is provided with a connecting groove 211, and the ends of the first segment 221 and the second segment 222 are hinged to the connecting groove 211. By hinged together at the ends of the first segment 221 and the second segment 222 in the same connecting groove 211 of the connector 210, the rotation centers of the two arm segments at the connector 210 are highly concentrated, forming a clear linkage relationship. When adjusting the connector 210 to expand or contract, the first segment 221 and the second segment 222 rotate around the same or similar axis, with coordinated movement trajectories, avoiding torque or jamming caused by dispersed hinge points. Furthermore, the multiple connectors 210 move synchronously during circumferential adjustment, ensuring that the connection points of the fixture are evenly distributed in the expanded state, improving the fitting accuracy for basin insulators 300 of different diameters.

[0039] The connecting groove 211 structure provides a limiting and enclosing installation space for the hinged ends of the first segment 221 and the second segment 222. Compared to a simple exposed hinge pin structure, the connecting groove 211 can limit the displacement of the hinge pin in the non-axial direction, preventing the pin from falling off due to vibration or impact; during assembly or adjustment, the connecting groove 211 provides guidance for the end of the arm body, facilitating quick alignment and installation; it can also reduce damage to the hinged parts from external impacts and extend their service life.

[0040] Furthermore, when the tooling needs to be retracted for storage, pushing the connector 210 towards the center of the tooling causes the first segment 221 and the second segment 222 to retract synchronously under the guidance of the connecting groove 211. Since the two arms share a single hinge area, and the first segment 221 retracts towards the top 110 while the second segment 222 retracts towards the bottom 120, the folding angle is more compact, avoiding the problem of the arms not being able to fully retract due to spatial interference. This reduces the radial and axial dimensions of the tooling in its retracted state, further improving space utilization and facilitating transportation and storage.

[0041] In one embodiment, exemplarily, such as Figure 1 As shown, the connector 210 is provided with at least one through hole 212, and threaded holes are axially evenly distributed along the edge of the insulator 300. The through holes 212 can correspond to the threaded holes. By aligning the through holes 212 on the connector 210 with the threaded holes on the edge of the insulator 300, and using bolts or screws to pass through the through holes 212 and screw them into the threaded holes, a threaded fastening connection is formed. Compared with quick-release methods such as clips and hooks, this connection has higher connection strength and tensile strength. During the hoisting and demolding process, the pot-type insulator 300 may be heavy, especially large-sized products, and it is also necessary to overcome the adhesion force between it and the mold 400 after curing. The bolted connection can effectively withstand large axial tensile forces, prevent detachment accidents caused by connection failure, and ensure the safety of operators and equipment.

[0042] Since the threaded holes are axially evenly distributed at the edge of the basin-type insulator 300, and the through holes 212 on the connector 210 can precisely correspond to them, positioning and guidance can be achieved through the hole positions during installation. The alignment process between the through holes 212 and the threaded holes is intuitive and clear, reducing manual adjustment time. Furthermore, multiple connection points are evenly distributed along the circumference, ensuring that each connector 210 is subjected to consistent force during demolding, avoiding uneven loading that could cause the insulator 300 to twist, crack, or tilt during demolding.

[0043] In one embodiment, exemplarily, such as Figures 1 to 3As shown, when the through hole 212 corresponds to the threaded hole, the end of the connector 210 away from the tooling body 100 extends horizontally to the outside of the insulator 300. A pusher 213 is provided at the end of the connector 210 away from the tooling body 100. Traditional demolding methods typically rely on hoisting equipment to directly pull the insulator 300 upwards using the tooling to overcome the adhesion or friction between it and the mold 400. This method causes the hoisting structure to bear a large impact load at the moment of demolding, posing a safety hazard. In this embodiment, the pusher 213 is located at the extended end of the connector 210, and can act downwards on the mold 400 or the base platform after connection, forming a reaction force fulcrum.

[0044] After all connectors 210 are fixed to the insulator 300, the pusher 213 presses against the edge of the mold 400 or the worktable surface. The pusher 213 acts as a fulcrum, pushing the insulator 300 out of the mold 400. The demolding force is borne by the contact surface between the pusher 213 and the mold 400 platform, rather than by the lifting system directly pulling off the adhesive. This reduces the stress on the lifting equipment and tooling body during the initial demolding stage, avoiding equipment damage or safety accidents caused by instantaneous overload.

[0045] The basin-type insulator 300 is a composite material cast from epoxy resin, which has low tensile strength and is sensitive to impact loads. If a hard pull method is used for demolding, the insulator 300 body is prone to cracking or internal defects due to local stress concentration or instantaneous acceleration. In this embodiment, the ejector 213 achieves a slow and uniform ejection action, which allows the demolding force to be applied gradually along the axial direction, achieving controllable force release: avoiding sudden breakage of the adhesive force, and also allowing the insulator 300 to detach from the mold 400 at a uniform speed, reducing vibration and impact, thereby effectively preventing structural damage caused by violent demolding and improving the yield.

[0046] In one embodiment, exemplarily, such as Figures 1 to 3 As shown, the connector 210 has a push hole at its end, and the pusher 213 is slidably installed in the push hole. One end of the pusher 213 has a handle 214, and the end of the pusher 213 away from the handle 214 can abut against the mold 400 of the insulator 300. By designing the pusher 213 to slide within the push hole, it can extend and retract vertically. When the demolding fixture is adapted to molds 400 of different sizes or structures, the support surface positions of the mold 400 edges may differ. By manually adjusting the extension length of the pusher 213, its point of action can be flexibly adjusted to ensure that its end reliably abuts against the load-bearing area of ​​the mold 400, such as the outer edge of the mold 400 or the base platform, pushing the mold 400 to demold the insulator 300. Multiple molds 400 can be adapted without replacing the pusher components, improving the versatility of the tooling.

[0047] A handle 214 is provided on the ejector component 213, providing the operator with a clear gripping point and force application position. After the tooling is positioned, the operator can hold the handle 214 to control the ejector component 213 to move towards the mold 400, precisely adjust its position, and ensure that its end accurately abuts against the support surface of the mold 400 for normal demolding operations. This prevents hands from entering the danger zone and reduces the risk of pinching injuries.

[0048] It is understood that this embodiment does not limit the specific arrangement of the pusher 213 and the pusher hole, as long as it meets the requirements of this embodiment. For example, the pusher hole has an internal thread, and the pusher 213 has a matching external thread on its outer circumference; the two achieve sliding and positioning through thread engagement. Rotating the handle 214 on the pusher 213 to screw it into or out of the pusher hole along the thread enables the pusher of the mold 400, separating the insulator 300 from the mold 400. Of course, the pusher 213 and the pusher hole can also be configured with any other arbitrary structure.

[0049] In one embodiment, for example, a positioning hole is provided at the center of the insulator 300, and a positioning pin is provided on the positioning part facing the insulator 300, which can be inserted into the positioning hole. The basin-type insulator 300 is a rotating structure, and its demolding process requires the tooling and the product to be strictly coaxial. Otherwise, eccentric torque is easily generated during the lifting or ejection process, resulting in uneven stress on the insulator 300, local cracking, or demolding jamming. The insertion of the positioning pin into the positioning hole is equivalent to establishing a central reference constraint, forcing the tooling body 100 and the insulator 300 to remain concentric. With the cooperation of multiple circumferentially distributed connectors 210, a dual positioning mechanism of central positioning and circumferential locking is formed, improving the overall assembly accuracy. In this way, the alignment of all connectors 210 with the threaded holes on the edge of the insulator 300 is more accurate, avoiding difficulties in connection on one side or misalignment of bolts due to eccentricity.

[0050] During hoisting, the fixture may rotate slightly or shift laterally due to swaying or wind. Without center positioning, the through hole 212 on the connector 210 may not be accurately aligned with the threaded hole on the edge of the insulator 300, requiring repeated adjustments and resulting in low efficiency. After the positioning pin is inserted into the positioning hole, the freedom of the fixture in the horizontal plane is restricted, and the position of the fixture is completely locked. Operators can quickly and accurately complete the bolt installation of each connector 210. This reduces manual alignment time, improves work efficiency, and avoids thread damage or deformation of the connector 210 caused by forced connection due to misalignment.

[0051] In one embodiment, for example, the locating pin is made of Teflon. The basin-type insulator 300 is typically cast from composite materials such as epoxy resin and silica powder. While its inner wall has a certain strength, it is a non-metallic, brittle material, easily scratched, cracked, or develops micro-cracks by metal or hard materials. If a metal locating pin is used, even slight shaking or misalignment during hoisting and lowering can cause the pin to scrape, squeeze, or bump against the edge of the locating hole, resulting in chipping of the hole opening or internal stress concentration. Teflon, on the other hand, has low hardness and a soft texture, and even minor misalignment during alignment will not cause mechanical damage to the locating hole of the insulator 300. This effectively protects the critical components of the insulator 300, preventing initial defects introduced during locating operations from affecting its electrical performance or long-term operational reliability.

[0052] In one embodiment, for example, the connector 210 has a protective layer on the side facing the insulator 300, and the protective layer is made of Teflon. By providing a Teflon protective layer on the contact side of the connector 210 with the insulator 300, it is ensured that the connector 210 will not directly contact metal parts when installing bolts or fitting against the edge of the insulator 300. Combined with Teflon locating pins, all physical contact points between the tooling and the insulator 300 are made of non-metallic, low-hardness materials. From center positioning to circumferential connection, there is no risk of metal scratching throughout the entire process, truly achieving zero-damage contact.

[0053] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A demolding fixture for demolding basin-type insulators; characterized in that, The demolding fixture includes: The tooling body (100) has a lifting ring (111) at one end and a positioning part at the end of the tooling body (100) away from the lifting ring (111). A demolding assembly (200) includes a connector (210) for connecting the insulator (300); the connector (210) is mounted on the tooling body (100) via a folding arm (220), the connector (210) is movable via the folding arm (220) in a direction close to or away from the tooling body (100), and the connector (210) is hinged to one end of the folding arm (220) away from the tooling body (100); Multiple connectors (210) are evenly distributed around the tooling body (100).

2. The demolding fixture according to claim 1, characterized in that, The tooling body (100) includes a top (110) and a bottom (120), the lifting ring (111) is installed on the top (110) away from the bottom (120), and the positioning part is disposed on the bottom (120) away from the top (110); The top (110) and the bottom (120) can move closer to or further away from each other via the folding arm (220).

3. The demolding fixture according to claim 2, characterized in that, The folding arm (220) includes a first segment (221) and a second segment (222). One end of the first segment (221) is hinged to the top (110), and the other end of the first segment (221) away from the top (110) is hinged to the connector (210). One end of the second segment (222) is hinged to the bottom (120), and the other end of the second segment (222) away from the bottom (120) is hinged to the connector (210).

4. The demolding fixture according to claim 3, characterized in that, The connector (210) is provided with a connecting groove (211), and the ends of the first segment (221) and the second segment (222) are hinged to the connecting groove (211).

5. The demolding fixture according to claim 1, characterized in that, The connector (210) is provided with at least one through hole (212), and the insulator (300) is provided with threaded holes evenly distributed axially at its edge. The through hole (212) can be provided in correspondence with the threaded hole.

6. The demolding fixture according to claim 5, characterized in that, When the through hole (212) is set in correspondence with the threaded hole, the end of the connector (210) away from the tooling body (100) extends horizontally to the outside of the insulator (300); A pusher (213) is provided at the end of the connector (210) away from the tooling body (100).

7. The demolding fixture according to claim 6, characterized in that, The end of the connector (210) is provided with a push hole, and the push member (213) is slidably installed in the push hole; One end of the pusher (213) is provided with a handle (214), and the end of the pusher (213) away from the handle (214) can abut against the mold (400) of the insulator (300).

8. The demolding fixture according to claim 1, characterized in that, A positioning hole is provided at the center of the insulator (300), and a positioning pin is provided on the positioning part facing the insulator (300) respectively. The positioning pin can be inserted into the positioning hole.

9. The demolding fixture according to claim 8, characterized in that, The locating pin is made of Teflon.

10. The demolding fixture according to claim 1, characterized in that, The connector (210) has a protective layer on the side facing the insulator (300), and the protective layer is made of Teflon.

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