Dual cavity universal encapsulation and curing device

Abstract

The utility model discloses a double -cavity formula general formula glue sealing vulcanization device, including base, slide rail, mould support and heating vulcanization mould. Mould support includes mould support no. 1 and mould support no. 2, and two are through the sliding support plate sliding installation on the slide rail respectively, and the sliding support plate is adjusted and is connected through T screw between the slide rail, realizes the flexible adjustment of mould spacing, and adapts different length product. Two groups of heating vulcanization moulds are provided on each mould support, and the mould is composed of vulcanization upper die, vulcanization lower die and hydraulic cylinder, and the vulcanization upper die is connected with the support through the hinged mode, and the synchronous opening and closing between the adjacent upper die is realized through the lock bolt and the wedge block structure, and the precise positioning is carried out in cooperation with the positioning groove and the positioning convex strip structure. The hydraulic cylinder drives the vulcanization lower die to complete the mold closing action. The device improves production efficiency and equipment versatility through double -cavity design and modular structure, and is suitable for the glue sealing vulcanization forming of the multiple specifications lightning arrester product.

Description

Technical Field

[0001] This utility model relates to the field of vulcanization technology in the production of surge arresters, specifically a dual-cavity universal sealing vulcanization device. Background Technology

[0002] Currently, surge arresters are typically manufactured using a heat-sealing process for surface encapsulation. Existing surge arrester encapsulation equipment generally uses a one-mold-per-out configuration, meaning that only one product can be vulcanized at a time. While this type of equipment is relatively simple in structure, it suffers from significant low production efficiency, making it difficult to meet the capacity requirements of large-scale production.

[0003] Furthermore, in existing equipment, molds are typically mounted on slide rails via a slider structure, with simple positioning or mechanical limiting methods used for fixation. However, during actual vulcanization molding, the mold must withstand significant hydraulic clamping forces. Due to the limited fixing force between the slider body and the slide rail, the mold module often moves along the slide rail direction during the clamping and pressurization process, ultimately causing misalignment between the mold cavity and the product. This misalignment directly leads to asymmetry in the overmolding position, affecting the sealing consistency and molding quality of the surge arrester's exterior, and in severe cases, even resulting in product scrap.

[0004] In terms of structure, existing mold modules typically lack adjustable spacing, making it difficult to adapt to surge arrester products of different lengths or structural variations, resulting in poor versatility and adaptability. Furthermore, existing vulcanizing equipment relies heavily on manual operation for opening and closing the mold cavity, lacking precise linkage mechanisms. This not only makes operation cumbersome but also compromises safety, leading to low operational efficiency and poor safety.

[0005] In conclusion, there is an urgent need to provide a new type of sealing and vulcanizing device. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dual-cavity universal sealing and vulcanizing device. Through structural optimization and functional upgrade, it solves the shortcomings of existing equipment in terms of efficiency, accuracy and stability, thereby improving product quality and meeting the production needs of multiple specifications of surge arresters. It can effectively solve the problems in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dual-cavity universal sealing and vulcanizing device, comprising a slide rail, a mold support, and a heating and vulcanizing mold. Two mold supports are provided, namely mold support one and mold support two. Mold support one and mold support two are respectively mounted on the slide rail via sliding support plates. The sliding support plates are slidably connected to the slide rail. Open elongated holes are provided at both ends of the sliding support plates. T-shaped grooves are provided on the surface of the slide rail. T-shaped screws connect the T-shaped grooves and the open elongated holes. By loosening the T-shaped screws, the sliding support plates can move independently on the slide rail, thereby adjusting the distance between mold support one and mold support two. This allows for arbitrary adjustment according to product dimensions. This adjustment structure can meet the positioning accuracy of the equipment module and also... The module is fixed reliably to ensure controlled module offset after the hydraulic cylinder closes and pressurizes the mold, thus avoiding product offset after vulcanization. Heated vulcanizing molds are respectively set on mold support one and mold support two. Each mold support has two sets of heated vulcanizing molds. The heated vulcanizing mold includes an upper vulcanizing mold, a lower vulcanizing mold, and a hydraulic cylinder. One side of the upper vulcanizing mold is hinged to the mold support. Adjacent upper vulcanizing molds are connected by locking bolts. The lower vulcanizing mold is slidably connected to the mold support. The extension end of the hydraulic cylinder is connected to the lower vulcanizing mold. By extending and retracting the hydraulic cylinder, the lower vulcanizing mold is moved, thereby achieving mold closing. This structure achieves the opening and closing of the two upper vulcanizing molds through locking bolts. By adding a multi-cavity design, one device can produce two products after mold opening.

[0008] Furthermore, the locking bolt is equipped with a wedge. Tightening the locking bolt simultaneously presses two adjacent vulcanizing upper molds together through the wedge. The opening and closing of the two mold cavities are achieved synchronously through a single action. The vulcanizing upper mold is equipped with a positioning groove, and positioning protrusions are respectively provided on both sides of the lower surface of the wedge. The positioning protrusions correspond to the positioning groove. When the locking bolt is tightened with the mold support, the positioning protrusions are stuck in the positioning groove to prevent mold opening during pressurization and ensure the safety of the equipment.

[0009] Furthermore, an L-shaped support plate is provided on the outer side of the mold support second, and a positioning bolt is provided on the L-shaped support plate. A positioning block is provided on the inner end of the positioning bolt. By rotating the positioning bolt, the positioning bolt abuts against one end of the surge arrester element through the positioning block, thereby fixing it firmly in the horizontal direction, ensuring the sulfurization position of the surge arrester element and ensuring structural stability.

[0010] Furthermore, a straight support is provided on the mold support, and a hydraulic cylinder is fixed to the straight support. A temperature sensor is provided between the extension and retraction end of the hydraulic cylinder and the lower vulcanizing mold. During vulcanization, the heating system of the equipment runs continuously. The operation mode is mainly to obtain the current temperature of the mold through the temperature sensor and feed the signal back to the temperature controller. The temperature controller determines whether to power on the heating or stop it based on the set temperature. This heating and control system is existing technology. The mold support is provided with diagonal braces on the side. The diagonal braces and straight supports are used to increase the structural strength of the mold support and ensure safety during vulcanization.

[0011] Furthermore, a limit frame is provided on the side of the mold support, and the limit frame is provided with two U-shaped limit holes, with a gap left between them. This structure is used to limit and fix one end of the surge arrester element to prevent movement during the mold closing process. When positioning the surge arrester element, one end of it is stuck between the U-shaped limit holes to prevent the surge arrester element from being restricted, and the other end is fixed by the positioning bolt to achieve the fixation of the surge arrester element.

[0012] Furthermore, it also includes a base, on which slide rails are mounted, which serves to support the entire vulcanizing device.

[0013] The usage method is as follows:

[0014] 1. When the heat sealing time at both ends of the product is up, the time controller is turned on, the hydraulic pump motor starts, the hydraulic cylinder is lowered to the position, and the hydraulic system pressure gauge returns to zero.

[0015] 2. Loosen the locking bolts, open the vulcanizing upper mold, and rotate to remove the positioning bolts;

[0016] 3. At this point, the surge arrester components can be removed from the mold by a robotic arm and then placed in the product disposal area;

[0017] 4. Clean the residual rubber material inside the heated vulcanizing mold, then use a robotic arm to hold the prepared surge arrester and place it on the mold support. Adjust the positioning bolts to ensure that the part to be vulcanized is covered by the heated vulcanizing mold.

[0018] 5. Close the vulcanizing mold and tighten the locking bolts;

[0019] 6. When the electrical control cabinet status knob is in automatic mode, operate the start button on the electrical control cabinet. At this time, the hydraulic station will be activated and the hydraulic cylinder will rise until the system pressure gauge reaches the specified value. Then it will descend by 3~5mm. After that, the mold will be quickly closed and the booster oil pump will maintain pressure for a certain period of time before stopping and entering the vulcanization time.

[0020] 7. During vulcanization, the heating system of the equipment runs continuously. The main operating mode is to obtain the current temperature of the mold through a temperature sensor and feed the signal back to the temperature controller. The temperature controller determines whether to turn on the power to heat or stop the heating based on the set temperature.

[0021] 8. When the vulcanization time is up, repeat the "Serial Number 1" instruction to carry out subsequent production operations.

[0022] 9. When vulcanizing products of different lengths, only the relative distance between mold support one and mold support two needs to be adjusted to meet the height requirements of different products;

[0023] 10. When vulcanizing products of different diameters, the vulcanizing upper mold needs to be opened, and the mold blocks in the two half molds of the vulcanizing upper mold and vulcanizing lower mold need to be loosened. The module should be replaced and fixed according to the product diameter. After preheating for a certain period of time, it can meet the production needs of products of different diameters.

[0024] The equipment structure meets the needs of different product manufacturing. The relative distance between the two heat-sealing mechanisms can be adjusted at will according to the product size. The equipment modules are easy to replace. The heating and hydraulic systems are stable and effective for a long time. The production efficiency of dual-cavity products with one mold is improved.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. Adopting a dual-cavity mold structure, two independent heating and vulcanizing molds are arranged on the same equipment, and a hydraulic mold closing system is used to achieve synchronous vulcanization molding. This allows the equipment to produce two surge arrester products simultaneously in each operation. Compared with the traditional one-out-one-mold equipment, the production efficiency is increased by about 100%, significantly improving the output capacity per unit time. At the same time, the T-shaped guide rail and T-shaped screw connection structure enhances the rigidity of the connection between the mold and the guide rail, which can effectively suppress mold displacement under high pressure mold closing conditions and solve the problem of rubber coating displacement that is easy to occur in existing equipment during the pressurization process.

[0027] 2. The mold support structure has adjustable spacing, and the position of the sliding support plate on the slide rail can be adjusted to adapt to surge arrester products of different lengths. At the same time, the mold cavity pressing block of the vulcanizing upper and lower mold adopts a replaceable structure design, and the mold cavity can be replaced by simple disassembly and assembly to adapt to the encapsulation requirements of surge arresters of different diameters and shapes. This modular design not only realizes the high versatility and flexibility of the equipment, but also greatly shortens the debugging time when changing product specifications.

[0028] 3. The locking bolt and wedge linkage structure enables the synchronous opening and closing of the two mold cavities. Only one operation is needed to lock or release the two sets of upper molds at the same time, simplifying the operation process and improving work efficiency. With the help of positioning bolts, limit frames and other auxiliary positioning mechanisms, the positioning accuracy of product placement is improved. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2This is a schematic diagram of the mold support structure of this utility model;

[0031] Figure 3 This is a front view structural diagram of the present invention;

[0032] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0033] Figure 5 This is an enlarged structural diagram of section B of the present invention;

[0034] Figure 6 This is a schematic diagram of the limiting frame structure of this utility model;

[0035] Figure 7 This is a side view of the structure of this utility model.

[0036] In the diagram: 1. Diagonal brace, 2. Limiting frame, 3. Slide rail, 4. Sliding support plate, 5. Base, 6. Mold support one, 7. Temperature sensor, 8. Mold support two, 9. Upper vulcanizing mold, 10. Locking bolt, 11. Lower vulcanizing mold, 12. Hydraulic cylinder, 13. Positioning bolt, 14. Straight brace, 15. L-shaped support plate, 16. Positioning block, 17. Positioning groove, 18. Positioning protrusion, 19. Wedge block, 20. T-slot, 21. Open elongated hole, 22. U-shaped limiting hole. Detailed Implementation

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model. Example

[0038] Please see Figure 1-7This utility model provides a technical solution: a dual-cavity universal sealing and vulcanizing device, including a slide rail 3, a mold support, and a heating and vulcanizing mold. The device is characterized by having two mold supports, namely mold support one 6 and mold support two 8. Mold support one 6 and mold support two 8 are respectively mounted on the slide rail 3 via sliding support plates 4. The sliding support plates 4 are slidably connected to the slide rail 3. Each end of the sliding support plate 4 has an open elongated hole 21. A T-shaped groove 20 is provided on the surface of the slide rail 3. The T-shaped groove 20 is connected to the open elongated hole 21 by T-shaped screws. By loosening the T-shaped screws, the sliding support plate 4 can move on the slide rail 3, thereby adjusting the distance between mold support one 6 and mold support two 8 to achieve the desired effect. The product size can be adjusted at will; heating vulcanizing molds are respectively set on mold support 1 6 and mold support 2 8. Each mold support is equipped with two sets of heating vulcanizing molds. The heating vulcanizing molds include an upper vulcanizing mold 9, a lower vulcanizing mold 11 and a hydraulic cylinder 12. One side of the upper vulcanizing mold 9 is hinged to the mold support. Adjacent upper vulcanizing molds 9 are connected by locking bolts 10. The lower vulcanizing mold 11 is slidably connected to the mold support. The telescopic end of the hydraulic cylinder 12 is connected to the lower vulcanizing mold 11. By telescopically extending and retracting the hydraulic cylinder 12, the lower vulcanizing mold 11 is moved, thereby realizing mold closing. This structure realizes the opening and closing of the two upper vulcanizing molds 9 through locking bolts 10. By adding a multi-cavity design in one device, it is possible to achieve the purpose of producing two products after mold opening on one machine.

[0039] In the above embodiments, the sliding support plate and the slide rail cooperate to form an adjustable mold spacing positioning structure, ensuring the stability of the module under hydraulic pressure and avoiding displacement, while meeting the vulcanization molding requirements of surge arrester products of different lengths; the hydraulic cylinder realizes the up and down movement of the lower mold, and the upper mold opens and closes in coordination through the locking mechanism to complete the mold closing and demolding actions, thereby improving work efficiency.

[0040] In the above embodiment, a wedge 19 is provided on the locking bolt 10. Tightening the locking bolt 10 simultaneously presses two adjacent vulcanizing upper molds 9 together through the wedge 19. A positioning groove 17 is provided on the vulcanizing upper mold 9. Positioning protrusions 18 are provided on both sides of the lower surface of the wedge 19, and the positioning protrusions 18 are correspondingly engaged with the positioning grooves 17. When the locking bolt 10 is tightened with the mold support, the positioning protrusions 18 are inserted into the positioning grooves 17 to form a rigid limit, which effectively prevents the mold cavity from opening during the pressurization process, realizes the synchronous closing and opening of the two mold cavities, and is simple to operate and more efficient.

[0041] In the above embodiment, an L-shaped support plate 15 is provided on the outer side of the mold support 2 8, and a positioning bolt 13 is provided on the L-shaped support plate 15. A positioning block 16 is provided at the inner end of the positioning bolt 13. Rotating the positioning bolt 13 can push the positioning block 16 to move axially and contact one end of the surge arrester element to form a pressing effect, thereby realizing the lateral positioning and stable fixation of the surge arrester element in the mold, and ensuring the accuracy and consistency of the vulcanization molding process.

[0042] In the above embodiment, a straight support 14 is provided on the mold support, and a hydraulic cylinder 12 is fixedly installed on the straight support 14. A temperature sensor 7 is provided between its telescopic end and the vulcanizing lower mold 11 to monitor the mold temperature in real time and feed it back to the temperature controller. The temperature controller determines whether to start or stop the heating circuit and controls the working status of the heating system. An inclined support 1 is provided on the side of the mold support. The inclined support 1 and the straight support 14 together improve the strength and stability of the mold support structure, ensuring good pressure bearing performance and safety guarantee during equipment operation.

[0043] In the above embodiment, a limiting frame 2 is provided on the side of the mold support 6. Two U-shaped limiting holes 22 are opened on the limiting frame 2, and a gap is provided between the two limiting holes. This structure is used to limit and hold one end of the surge arrester element, and together with the positioning bolt 13, it acts on the other end of the element to realize the fixation of the surge arrester. This structure prevents the surge arrester element from sliding or misaligning during the mold closing and pressurization process, ensuring product consistency and molding accuracy.

[0044] In the above embodiments, the sealing and vulcanizing device also includes a base 5, and a slide rail 3 is installed on the base 5. The base 5 serves as the overall support platform of the device, bearing the weight of the slide rail, mold support and its upper structure, while absorbing the hydraulic reaction force generated when the equipment is working, ensuring that the equipment is stable and does not shake during operation, and improving the overall rigidity and service life of the equipment.

[0045] Working principle: The dual-cavity universal sealing and vulcanizing device of this utility model mainly consists of a slide rail 3, a sliding support plate 4, a mold support one 6, a mold support two 8, a heating vulcanizing mold, a hydraulic cylinder 12, a locking bolt 10, a wedge block 19, a positioning groove 17, a positioning protrusion 18, a positioning bolt 13, an L-shaped support plate 15, a positioning block 16, a limiting frame 2, a U-shaped limiting hole 22, a temperature sensor 7, a straight support 14, a diagonal support 1, and a base 5, etc.; the mold support one 6 and the mold support two 8 are respectively installed on the sliding support plate 4, and the sliding support plate 4 is connected to the surface of the slide rail 3 by T-shaped screws. The T-shaped groove 20 is connected, allowing the mold support to slide and adjust relative to the slide rail to accommodate surge arrester components of different lengths. Each mold support is equipped with two sets of heated vulcanizing molds. One end of the vulcanizing upper mold 9 is connected to the mold support by a hinge. Two adjacent vulcanizing upper molds 9 are connected by wedges 19 set on the locking bolts 10. The positioning protrusions 18 below the wedges 19, together with the positioning grooves 17 on the vulcanizing upper mold 9, form a three-dimensional positioning structure. When the locking bolts 10 are tightened, the two mold cavities are simultaneously pressed and opened and closed, which enhances the positioning stability of the mold and prevents the upper mold from cracking or shifting under high pressure.

[0046] During the mold closing process, the hydraulic cylinder 12 is fixedly mounted on the straight support 14 on the mold support, and its telescopic end is connected to the vulcanizing lower mold 11. Under the start command of the control system, the hydraulic cylinder 12 moves, driving the vulcanizing lower mold 11 to rise to the specified pressure, completing the initial mold closing and rapid pressure increase and holding process, and starting vulcanization; the temperature inside the mold is collected in real time by the temperature sensor 7 set between the hydraulic cylinder 12 and the vulcanizing lower mold 11, and fed back to the temperature controller, which automatically determines whether to energize for heating, thereby realizing closed-loop control of the mold temperature; the limit of the surge arrester element is controlled by the limit bracket 2 on the side of the mold support 6 and its... The two U-shaped limiting holes 22 achieve insertion-type positioning and fixation. At the same time, the mold support 8 is laterally limited by the positioning bolts 13 on the L-shaped support plate 15 and the positioning block 16 at its end, realizing double-end clamping and precise alignment of the product in the mold. The entire device is installed on the base 5, which provides rigid support and absorbs mechanical impact during the mold closing process, ensuring stable operation of the device and mold accuracy. Through the coordinated operation of the above structures, functions such as flexible adjustment of mold spacing, synchronous operation of mold cavity, precise product positioning and intelligent control of vulcanization temperature are realized, thereby improving molding efficiency and product quality.

[0047] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A dual-cavity universal sealing and vulcanizing device, comprising a slide rail (3), a mold support, and a heating and vulcanizing mold, characterized in that: Two mold supports are provided, namely mold support one (6) and mold support two (8). Mold support one (6) and mold support two (8) are respectively set on slide rail (3) through sliding support plate (4). The sliding support plate (4) is slidably connected to the slide rail (3). Open elongated holes (21) are provided at both ends of the sliding support plate (4). T-shaped grooves (20) are provided on the surface of the slide rail (3). T-shaped screws are used to connect the T-shaped grooves (20) and the open elongated holes (21). Heating vulcanizing molds are respectively set on frame one (6) and mold support two (8). Two sets of heating vulcanizing molds are set on each mold support. The heating vulcanizing molds include vulcanizing upper mold (9), vulcanizing lower mold (11) and hydraulic cylinder (12). One side of the vulcanizing upper mold (9) is hinged to the mold support. Adjacent vulcanizing upper molds (9) are connected by locking bolts (10). The vulcanizing lower mold (11) is slidably connected to the mold support. The telescopic end of the hydraulic cylinder (12) is connected to the vulcanizing lower mold (11).

2. The dual-chamber universal sealing and vulcanizing device according to claim 1, characterized in that: A wedge (19) is provided on the locking bolt (10), and a positioning groove (17) is provided on the vulcanizing upper mold (9). Positioning protrusions (18) are provided on both sides of the lower surface of the wedge (19), and the positioning protrusions (18) correspond to the positioning grooves (17).

3. The dual-chamber universal sealing and vulcanizing device according to claim 1, characterized in that: The outer side of the mold support 2 (8) is provided with an L-shaped support plate (15), and a positioning bolt (13) is provided on the L-shaped support plate (15). A positioning block (16) is provided at the inner end of the positioning bolt (13), and the positioning bolt (13) is rotated.

4. The dual-chamber universal sealing and vulcanizing device according to claim 1, characterized in that: A straight support (14) is provided on the mold support, and a hydraulic cylinder (12) is fixed on the straight support (14). A temperature sensor (7) is provided between the extension end of the hydraulic cylinder (12) and the vulcanizing lower mold (11). An inclined support (1) is provided on the side of the mold support.

5. The dual-chamber universal sealing and vulcanizing device according to claim 1, characterized in that: A limit frame (2) is provided on the side of the mold support (6). A U-shaped limit hole (22) is provided on the limit frame (2). Two U-shaped limit holes (22) are provided, and the U-shaped limit hole (22) support has a gap.

6. The dual-chamber universal sealing and vulcanizing device according to claim 1, characterized in that: It also includes a base (5) and a slide rail (3) set on the base (5).

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