Synchronous mold opening device for insulator forming

Abstract

The utility model relates to the technical field of insulator production, in particular to a synchronous mold opening device for insulator molding, which comprises an upper mold and a lower mold, a molding cavity is arranged between the upper mold and the lower mold, and a material injection port is arranged on the upper mold; the forming mold is composed of a mold base and sliding mold cores, a pair of sliding mold cores are arranged on the mold base in a sliding opening and closing mode, the opening and closing process of the forming mold is completed through opening and closing of the sliding mold cores, and a mounting cavity used for containing an insulator mold blank is formed between the mold base and the pair of sliding mold cores; the lower mold is provided with two mold feeding guide rails, the forming mold is slidably placed on the inner sides of the two mold feeding guide rails, and opening and closing assemblies are arranged at the ends, away from the lower mold, of the two mold feeding guide rails and located on the outer side of the forming mold. According to the utility model, the two sliding mold cores on the forming mold can be automatically and synchronously opened and closed through the opening and closing assembly, and the high consistency and reliability in the opening and closing process of the mold can be effectively ensured, so that the forming precision and the product quality of an insulator are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of insulator production technology, specifically to an insulator forming synchronous mold opening device. Background Technology

[0002] In modern industrial production, injection molding technology for insulators is widely used. This technology is mainly used to manufacture components made of various insulating materials, such as high-voltage electrical appliances, cable terminals, and power poles.

[0003] Traditional insulator forming machines have several significant shortcomings, particularly the inability to synchronize the mold opening and closing process. This asynchrony not only reduces the forming accuracy of the insulator products but also affects product quality and yield. Furthermore, with the increasing demand for automated production, the asynchronous opening and closing of the mold limits the degree of automation, impacting production efficiency and cost control. Therefore, there is an urgent need to design an insulator forming device capable of synchronous mold opening to address these technical deficiencies and problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a synchronous mold opening device for insulator forming, which addresses the shortcomings of the prior art.

[0005] The technical solution adopted by this utility model is: an insulator molding synchronous mold opening device, including an upper mold and a lower mold for upper and lower mold closing processing, a molding cavity for placing the molding mold is provided between the upper mold and the lower mold, and an injection port for injecting plastic material into the molding cavity on the upper mold;

[0006] The forming mold consists of a mold base and sliding mold cores. A pair of sliding mold cores are slidably opened and closed on the mold base. The opening and closing process of the forming mold is completed by opening and closing the pair of sliding mold cores. An installation cavity for placing the insulator blank is opened between the mold base and the pair of sliding mold cores.

[0007] The lower mold is provided with two film feeding guide rails. The forming mold is slidably placed inside the two film feeding guide rails. The two film feeding guide rails are provided with an opening and closing component at the end away from the lower mold and located outside the forming mold. The opening and closing component is used to synchronously open and close the two sliding mold cores on the forming mold.

[0008] Preferably, the opening and closing assembly consists of two parts: a linkage opening and closing unit and a power transmission unit. The linkage opening and closing unit includes a gripper fixing platform, opening and closing grippers, and a multi-stage linkage assembly. The gripper fixing platform is installed at one end of the mold feeding guide rail and located at the bottom of the initial position of the forming mold. The opening and closing grippers are symmetrically installed on the gripper fixing platform. The multi-stage linkage assembly is symmetrically installed on both sides of the gripper fixing platform and is hinged to the opening and closing grippers.

[0009] Preferably, the gripper fixing platform has symmetrically provided identical sliding grooves on both sides above it for mounting and engaging the opening and closing grippers on both sides, so that the opening and closing grippers on both sides can move linearly on the gripper fixing platform. Both the opening and closing grippers and the gripper fixing platform are provided with hinge ports that are interconnected with the multi-stage linkage group.

[0010] Preferably, the gripper fixing platform is a concave platform with a low center and high sides, and the mold feeding guide rail and the forming mold are both located above the concave part between the gripper fixing platform.

[0011] Preferably, a clamping block is provided on the outer side of the sliding mold core near the opening and closing clamping claw. The shape of the clamping block corresponds to the opening and closing clamping claw, so that when the molding die moves to the opening and closing position, the clamping block and the opening and closing clamping claw are in a matching state.

[0012] Preferably, the power transmission unit comprises a fixed guide plate, racks, rollers, a vertical geared motor, and gears; a fixed guide plate is installed at the bottom of the gripper fixing platform, and a pair of racks that move linearly in different directions are symmetrically slidably arranged at the bottom of the fixed guide plate; a vertical geared motor is installed above the fixed guide plate, and a gear is fixedly connected to the output shaft of the vertical geared motor; the pair of racks mesh with the gear for transmission.

[0013] Preferably, the bottom of the gripper fixing platform has an assembly cavity, and the main body of the vertical differential motor is located in the assembly cavity.

[0014] Preferably, the bottom of the fixed guide plate is provided with a pair of symmetrically distributed slide rails, and the rollers on the rack slide within the slide rails, thereby ensuring linear guidance of the gear rack transmission.

[0015] Preferably, the multi-stage linkage group consists of three mutually hinged clamping links, clamping platform links, and rack links that are sequentially connected to the opening and closing gripper, the gripper fixing platform, and the rack. Thus, through the intermediate process of the rotational motion of the multi-stage linkage group, the horizontal linear motion of the rack is converted into the horizontal linear motion of the opening and closing gripper.

[0016] Preferably, an upper heating plate and a lower heating plate are respectively provided in the upper mold and the lower mold, so as to heat and plasticize the raw material injected into the molding cavity to complete the injection molding process of the insulator blank in the molding mold.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model achieves synchronous movement of the opening and closing jaws on both sides of the clamping jaw fixing table through the precise cooperation between the linkage opening and closing unit and the power transmission unit in the opening and closing assembly. Specifically, the vertical geared motor transmits power through gears and racks, thereby precisely controlling the rotation of the multi-stage linkage group, which in turn drives the tightening and opening of the opening and closing jaws on both sides. This structural design ensures a high degree of consistency and reliability of the mold opening and closing process in each production cycle, thereby significantly improving the molding accuracy and product quality of the insulator.

[0019] 2. This utility model uses a vertical geared motor and a gear and rack transmission method to fully automate the entire opening and closing process, reducing the need for manual intervention. Automated control not only improves production efficiency but also reduces operational errors and production costs. Especially in large-scale production, the advantages of this automated opening and closing are more obvious, which can significantly reduce production costs and improve production stability and consistency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the molding die in this utility model;

[0023] Figure 4 This is a cross-sectional view of the gripper fixing platform in this utility model.

[0024] Illustration:

[0025] 1. Upper mold; 2. Lower mold; 301. Hydraulic cylinder; 302. Base; 303. Green column; 304. Oil tank; 401. Upper heating plate; 402. Lower heating plate; 403. Runner plate; 404. Feeding cylinder; 405. Plasticizing cylinder; 406. Injection molding machine; 407. Support frame; 5. Molding mold; 501. Mold base; 502. Sliding mold core; 503. Clamping jaws; 6. Film feeding guide rail; 701. Linkage opening and closing unit; 7011, gripper fixing table; 7011a, slide rail; 7012, opening and closing gripper; 7013, multi-stage linkage group; 7014, gripper connecting rod; 7015, fixing table connecting rod; 7016, rack and pinion connecting rod; 702, power transmission unit; 7021, fixing guide plate; 7022, rack; 7023, roller; 7024, vertical geared motor; 7025, gear; 7026, slide rail. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", 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 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 utility model.

[0028] See Figures 1 to 4 As shown in the figure, this utility model embodiment provides an insulator molding synchronous mold opening device, including an upper mold 1 and a lower mold 2 for upper and lower mold closing processing. A molding cavity for placing a molding die 5 is provided between the upper mold 1 and the lower mold 2. The upper mold 1 is provided with an injection port for injecting plastic material into the molding cavity. In this way, the insulator blank is placed into the molding die 5, the upper mold 1 and the lower mold 2 are assembled to include the molding die 5 in the molding cavity, and the plastic material is injected into the molding cavity from the injection port, thereby completing the material injection molding process in the insulator injection molding.

[0029] In some embodiments, the bottom of the lower mold 2 is provided with a hydraulic mold closing mechanism, which includes a hydraulic cylinder 301, a base 302, Grinding columns 303, and an oil tank 304. The hydraulic cylinder 301 and the base 302 are sequentially installed at the bottom of the lower mold 2. The Grinding columns 303 are arranged in a rectangular array on the base 302, with the four Grinding columns 303 vertically passing through the lower mold 2. The upper mold 1 is installed on top of the four Grinding columns 303. The hydraulic cylinder 301 in the hydraulic mold closing mechanism provides the mold closing driving force to lift the lower mold 2 and the forming mold 5 upward to the mold closing position for mold closing processing.

[0030] In some embodiments, an upper heating plate 401 and a lower heating plate 402 are respectively provided in the upper mold 1 and the lower mold 2. In this way, the material injected into the molding cavity is heated and plasticized to complete the injection molding process of the insulator preform in the molding mold 5.

[0031] In some embodiments, a runner plate 403 is provided at the bottom of the upper mold 1, and an injection port is provided on the runner plate 403. The bottom of the runner plate 403 is provided with a nozzle for injecting plasticized material into the molding cavity.

[0032] In some embodiments, a material plasticizing injection unit is provided at the injection port on the runner plate 403, which includes a feeding cylinder 404, a plasticizing cylinder 405, an injection machine 406, and a support frame 407 connected in sequence. The tail ends of the feeding machine and the injection cylinder are fixedly installed on the support frame 407. The feeding end of the feeding cylinder 404 is connected to the feeding end of the plasticizing cylinder 405, thereby transferring the material from the feeding cylinder 404 to the plasticizing cylinder 405. The discharge end of the plasticizing cylinder 405 is connected to the front port of the injection machine 406, and the material is plasticized and transferred to the injection machine 406 through the plasticizing cylinder 405. The discharge end of the injection machine 406 is connected to the injection port on the runner plate 403, so that the injection machine 406 injects the material into the runner plate 403. After entering the runner plate 403, the plasticized material enters the molding chamber through the nozzle, thereby completing the material plasticizing and injection process.

[0033] In some embodiments, the forming mold 5 consists of a mold base 501 and sliding mold cores 502. A pair of sliding mold cores 502 are slidably opened and closed on the mold base 501. The opening and closing process of the forming mold 5 is completed by opening and closing the pair of sliding mold cores 502. An installation cavity for placing the insulator blank is formed between the mold base 501 and the pair of sliding mold cores 502. In this way, the insulator blank is placed into or removed from the installation cavity by the pair of sliding mold cores 502 on the mold base 501, thereby completing the installation and removal of the insulator blank.

[0034] In some embodiments, the lower mold 2 is provided with two film feeding guide rails 6, and the forming mold 5 is slidably placed inside the two film feeding guide rails. In this way, the forming mold 5 and the insulator blank placed inside it are transported between the upper mold 1 and the lower mold 2 through the film feeding guide rails to wait for mold closing.

[0035] In some embodiments, an opening and closing assembly is provided at the end of the two mold feeding guides away from the lower mold 2 and located outside the forming mold 5. The opening and closing assembly enables the two sliding mold cores 502 on the forming mold 5 to open and close synchronously in an automated manner, ensuring the quality and yield of the insulator products.

[0036] In some embodiments, the opening and closing assembly consists of two parts: a linkage opening and closing unit 701 and a power transmission unit 702. The linkage opening and closing unit 701 can synchronously open and close a pair of sliding mold cores 502 on the mold base 501, and the power transmission unit 702 can provide power for the linkage opening and closing unit 701 to open and close the sliding mold cores 502.

[0037] In some embodiments, the linkage opening and closing unit 701 includes a gripper fixing platform 7011, opening and closing grippers 7012, and a multi-stage linkage assembly 7013. The gripper fixing platform 7011 is mounted on one end of the mold feeding guide rail and located at the bottom of the initial position of the molding die 5. The opening and closing grippers 7012 are symmetrically mounted on the gripper fixing platform 7011, and the multi-stage linkage assembly 7013 is symmetrically mounted on both sides of the gripper fixing platform 7011 and hinged to the opening and closing grippers 7012. Thus, the multi-stage linkage assembly 7013 drives the symmetrically mounted opening and closing grippers 7012 on the gripper fixing platform 7011 to perform opening and closing movements, thereby completing the opening and closing of the sliding mold core 502.

[0038] In some embodiments, identical sliding grooves 7011a are symmetrically provided on both sides of the upper part of the gripper fixing table 7011 for mounting and engaging the opening and closing grippers 7012 on both sides, so that the opening and closing grippers 7012 on both sides can move linearly within the sliding grooves 7011a on the gripper fixing table 7011 under the action of multi-stage connecting rods, thereby completing the opening and closing of the sliding mold core 502.

[0039] In some embodiments, both the opening and closing gripper 7012 and the gripper fixing platform 7011 are provided with hinge ports that are interconnected with the multi-stage linkage group 7013, which facilitates the installation and coordination of each component of the multi-stage linkage group 7013, thereby realizing the linkage and coordination of the opening and closing gripper 7012.

[0040] In some embodiments, see Figure 1 The gripper fixing platform 7011 is a concave platform with a low center and high sides. The mold feeding guide rail and the forming mold 5 are both located above the concave part between the gripper fixing platform 7011.

[0041] In some embodiments, a clamping block 503 is provided on the outer side of the sliding mold core 502 near the opening and closing clamping claw 7012. The shape of the clamping block 503 corresponds to the opening and closing clamping claw 7012 so that when the molding die 5 moves to the opening and closing position, the clamping block 503 and the opening and closing clamping claw 7012 are in a matching state.

[0042] In some embodiments, the power transmission unit 702 includes a fixed guide plate 7021, a rack 7022, a roller 7023, a vertical geared motor 7024, and a gear 7025. The bottom of the gripper fixing table 7011 is equipped with a fixed guide plate 7021. A pair of racks 7022 that move linearly in different directions are symmetrically slidably arranged at the bottom of the fixed guide plate 7021. The vertical geared motor 7024 is installed above the fixed guide plate 7021. The output shaft of the vertical geared motor 7024 is fixedly connected to the gear 7025. The pair of racks 7022 and the gear 7025 mesh with each other for transmission.

[0043] Thus, the vertical geared motor 7024 installed above the fixed guide plate 7021 provides driving force to drive the gear 7025 to rotate. A pair of racks 7022 move linearly in different directions on the fixed guide plate 7021 through the rollers 7023 fixed at their upper ends. One end of the multi-stage linkage group 7013 is hinged to one end of the rack 7022, and the other end of the multi-stage linkage group 7013 is hinged to the hinge port on the opening and closing gripper 7012. Thus, the linearly moving rack 7022 drives the multi-stage linkage to rotate, and finally realizes the synchronous opening and closing of the opening and closing gripper 7012 on the sliding mold core 502 on the forming mold 5.

[0044] In some embodiments, the bottom of the gripper fixing stage 7011 is provided with an assembly cavity, and the main body of the vertical differential motor is located in the assembly cavity.

[0045] In some embodiments, the bottom of the fixed guide plate 7021 is provided with a pair of symmetrically distributed slide rails 7026, and the rollers 7023 on the rack 7022 slide within the slide rails 7026, thereby ensuring the linear guidance of the gear 7025 rack 7022 transmission.

[0046] In some embodiments, the multi-stage linkage 7013 consists of three mutually hinged links that are sequentially connected to the opening and closing gripper 7012, the gripper fixing platform 7011, and the rack 7022. This allows the horizontal linear motion of the rack 7022 to be converted into the horizontal linear motion of the opening and closing gripper 7012 through the intermediate process of the rotational movement of the multi-stage linkage 7013.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for synchronously opening a mold for forming an insulator, characterized by: The upper die and the lower die are provided with a forming cavity for placing a forming mold, and the upper die is provided with an injection port for injecting plastic material into the forming cavity; The forming mold is composed of a mold base and a sliding mold core, and a pair of sliding mold cores is arranged on the mold base in a sliding opening and closing mode. The opening and closing process of the forming mold is completed by opening and closing the pair of sliding mold cores. An installation cavity for placing an insulator blank is formed between the mold base and the pair of sliding mold cores. The lower die is provided with two mold feeding guide rails, and the forming mold is slidably placed on the inner side of the two mold feeding guide rails. The ends of the two mold feeding guide rails away from the lower die and located on the outer side of the forming mold are provided with an opening and closing assembly for synchronously opening and closing the two sliding mold cores on the forming mold.

2. The device according to claim 1, characterized in that: The opening and closing assembly is composed of a linkage opening and closing unit and a power transmission unit. The linkage opening and closing unit includes a clamping jaw fixing table, opening and closing clamping jaws, and a multi-stage connecting rod set. The clamping jaw fixing table is installed at one end of the mold feeding guide rail and located at the bottom of the initial position of the forming mold. The opening and closing clamping jaws are symmetrically installed on the clamping jaw fixing table. The multi-stage connecting rod set is symmetrically installed on both sides of the clamping jaw fixing table and is hingedly connected with the opening and closing clamping jaws.

3. The device according to claim 2, characterized in that: Symmetrical grooves are formed on both sides of the clamping jaw fixing table above, which are used to install the opening and closing clamping jaws on both sides, so that the opening and closing clamping jaws on both sides can move linearly on the clamping jaw fixing table. The opening and closing clamping jaws and the clamping jaw fixing table are both provided with hinge ports connected with the multi-stage connecting rod set.

4. The device according to claim 3, characterized in that: The clamping jaw fixing table is a concave table with low middle and high sides. The mold feeding guide rail and the forming mold are located above the recessed part between the clamping jaw fixing table.

5. The device according to claim 4, characterized in that: A clamping jaw matching block is arranged on one side of the outer side of the sliding mold core close to the opening and closing clamping jaw. The shape of the clamping jaw matching block corresponds to that of the opening and closing clamping jaw, so that when the forming mold moves to the opening and closing position, the clamping jaw matching block and the opening and closing clamping jaw are in a matching state.

6. The device according to claim 5, wherein: The power transmission unit is composed of a fixed guide plate, a rack, a roller, a vertical reduction motor, and a gear. The fixed guide plate is installed at the bottom of the clamping jaw fixing table. A pair of racks moving linearly in different directions is symmetrically arranged at the bottom of the fixed guide plate. A vertical reduction motor is installed above the fixed guide plate. The output shaft of the vertical reduction motor is fixedly connected with a gear. The pair of racks is in meshing transmission with the gear.

7. The device according to claim 6, characterized in that: An assembly cavity is formed at the bottom of the clamping jaw fixing table, and the main body of the vertical differential motor is located in the assembly cavity.

8. The device according to claim 7, characterized in that: A pair of symmetrical slide rails is arranged at the bottom of the fixed guide plate, and the rollers on the racks slide in the slide rails, thereby ensuring the linear guidance of the gear and rack transmission.

9. The device according to claim 8, characterized in that: The multi-stage connecting rod group is composed of a jaw connecting rod, a fixed table connecting rod and a rack connecting rod which are hingedly connected with each other and sequentially connected with the opening and closing jaw, the jaw fixed table and the rack, so that the horizontal linear motion of the rack is converted into the horizontal linear motion of the opening and closing jaw through the intermediate process of the rotating motion of the multi-stage connecting rod group.

10. The device according to claim 9, wherein: The upper die and the lower die are respectively provided with an upper heating plate and a lower heating plate, so that the raw material injected into the forming cavity is heated and plasticized to complete the injection molding process of the insulator preform in the forming mold.

Images