A butterfly plate overmolding die

Abstract

The utility model discloses a kind of butterfly plate overmolding mould, including mounting bracket, the lower die is slidably installed on the mounting bracket upper end face, the fixed plate is fixedly installed on the mounting bracket both sides outer wall, two The fixed plate inner wall is fixedly installed with clamping block by electric push rod, two The clamping block inner wall is fixedly installed with the protective pad matched with lower die outer wall, two The protective pad is rubber material, the mounting bracket upper end face is rotatably installed with screw rod by lifting frame, the motor connected with screw rod is fixedly installed on the lifting frame upper end face, the outer wall of screw rod is threadedly installed with moving plate by limiting mechanism. The utility model drives clamping block to move by setting electric push rod of mounting bracket both sides, cooperate with the protective pad of rubber material, can be firmly clamped to lower die, avoid the deviation of lower die in processing process, ensure the precision of butterfly plate overmolding, and lower die is slidably installed on the mounting bracket upper end face, convenient for position adjustment when feeding.

Description

Technical Field

[0001] This utility model relates to the field of butterfly plate processing technology, and in particular to a butterfly plate covering molding mold. Background Technology

[0002] A butterfly valve is a disc-shaped switching component that controls the flow of media in a pipeline by rotating the valve shaft. It is widely used in petroleum, chemical and other fields.

[0003] As the core sealing component of a butterfly valve, the butterfly plate needs to be coated with specific functional materials to improve sealing performance and service life. Existing butterfly plate coating molding molds have poor lower mold positioning stability during use and are prone to displacement due to external forces or vibrations during processing, resulting in insufficient coating layer bonding accuracy and inadequate practicality. Therefore, it is necessary to redesign a butterfly plate coating molding mold to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a butterfly plate covering molding mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A butterfly plate overmolding mold includes a mounting frame. A lower mold is slidably mounted on the upper surface of the mounting frame. Fixed plates are fixedly mounted on the outer walls of both sides of the mounting frame. Clamping blocks are fixedly mounted on the inner walls of both fixed plates via electric push rods. Protective pads that mate with the outer walls of the lower mold are fixedly mounted on the inner walls of both clamping blocks. Both protective pads are made of rubber. A screw is rotatably mounted on the upper surface of the mounting frame via a lifting frame. A motor connected to the screw is fixedly mounted on the upper surface of the lifting frame. A moving plate is threadedly mounted on the outer wall of the screw via a limiting mechanism. An mounting plate is fixedly mounted on the bottom wall of the moving plate via a connecting mechanism. Two sliding rods are slidably mounted on the upper surface of the mounting plate. Limiting blocks are fixedly mounted on the ends of both sliding rods. An mounting block is fixedly mounted on the other ends of both sliding rods. Springs are mounted on the outer walls of both sliding rods. The two ends of the two springs are elastically connected to the limiting blocks and the upper surface of the mounting block, respectively. An upper mold is threadedly connected to the bottom wall of the mounting block via multiple fixing bolts.

[0006] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the lifting frame, and the limiting rod slides through the moving plate.

[0007] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the bottom wall of the movable plate, and the ends of the two connecting rods are fixedly connected to the upper surface of the mounting plate.

[0008] Preferably, a sealing groove is provided on the upper end face of the lower mold, and a sealing gasket that mates with the sealing groove is fixedly installed on the bottom wall of the upper mold. The sealing gasket is made of rubber.

[0009] Preferably, a PLC controller is fixedly mounted on the outer wall of the mounting frame via a support plate, and the PLC controller is electrically connected to the electric actuator and the motor respectively.

[0010] The beneficial effects of this utility model are: 1. By setting electric push rods on both sides of the mounting frame to drive the clamping blocks to move, and with the help of rubber protective pads, the lower mold can be firmly clamped to prevent the lower mold from shifting during processing and to ensure the accuracy of the butterfly plate covering and forming; at the same time, the lower mold is slidably mounted on the upper end face of the mounting frame, which facilitates the position adjustment during loading and unloading.

[0011] 2. By setting up a buffer mechanism with a sliding rod and spring between the mounting plate and the mounting block, the spring can absorb part of the impact force during the mold closing process, avoid rigid contact between the upper mold and the lower mold, reduce damage to the butterfly plate and the covering material, and at the same time help to ensure the uniform thickness of the covering layer. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a butterfly plate covering molding die proposed in this utility model; Figure 2 This is a side view of a butterfly plate covering molding die proposed in this utility model. Figure 3 for Figure 1 A schematic diagram of the vertical section structure; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0013] In the diagram: 1. Mounting bracket, 2. Lower mold, 3. Fixing plate, 4. Electric push rod, 5. Clamping block, 6. Protective pad, 7. Lifting frame, 8. Screw, 9. Motor, 10. Limit rod, 11. Moving plate, 12. Connecting rod, 13. Mounting plate, 14. Slide rod, 15. Limit block, 16. Spring, 17. Mounting block, 18. Upper mold, 19. Sealing gasket, 20. Support plate, 21. PLC controller. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-5A butterfly plate covering molding mold includes a mounting frame 1, a lower mold 2 slidably mounted on the upper end face of the mounting frame 1, fixing plates 3 fixedly mounted on the outer walls of both sides of the mounting frame 1, clamping blocks 5 fixedly mounted on the inner walls of the two fixing plates 3 via electric push rods 4, and protective pads 6 that cooperate with the outer walls of the lower mold 2 fixedly mounted on the inner walls of the two clamping blocks 5. Both protective pads 6 are made of rubber. A screw 8 is rotatably mounted on the upper end face of the mounting frame 1 via a lifting frame 7, and a motor 9 connected to the screw 8 is fixedly mounted on the upper end face of the lifting frame 7.

[0016] A movable plate 11 is threadedly installed on the outer wall of the screw 8 via a limiting mechanism. The limiting mechanism includes a limiting rod 10 fixedly installed inside the lifting frame 7. The limiting rod 10 slides through the movable plate 11 and is arranged parallel to the screw 8. By sliding through the movable plate 11, the limiting rod 10 restricts the movable plate 11 from rotating synchronously with the screw 8, ensuring that the movable plate 11 rises and falls smoothly only along the axis of the screw 8. A mounting plate 13 is fixedly installed on the bottom wall of the movable plate 11 via a connecting mechanism. The connecting mechanism includes two connecting rods 12 fixedly installed on the bottom wall of the movable plate 11. The ends of the two connecting rods 12 are fixedly connected to the upper end face of the mounting plate 13. The two connecting rods 12 are symmetrically distributed, and their ends are fixed to the movable plate 11 and the mounting plate 13 respectively, realizing the stable transmission of force between the two and ensuring that the mounting plate 13 moves synchronously when the movable plate 11 rises and falls.

[0017] Two sliding rods 14 are slidably mounted on the upper surface of the mounting plate 13. Limit blocks 15 are fixedly mounted at the ends of the two sliding rods 14. Mounting blocks 17 are fixedly mounted at the other ends of the two sliding rods 14. Springs 16 are installed on the outer walls of the two sliding rods 14. The two ends of the two springs 16 are elastically connected to the limit blocks 15 and the upper surface of the mounting blocks 17 respectively. The bottom wall of the mounting blocks 17 is threadedly connected to the upper mold 18 by multiple fixing bolts. A sealing groove is opened on the upper surface of the lower mold 2. A sealing gasket 19 that matches the sealing groove is fixedly mounted on the bottom wall of the upper mold 18. The sealing gasket 19 is made of rubber. The shape and size of the sealing groove and the sealing gasket 19 are precisely matched. When the mold is closed, the sealing gasket 19 is embedded in the sealing groove. The elasticity of the rubber material makes it fit tightly, effectively improving the sealing of the molding cavity. A PLC controller 21 is fixedly mounted on the outer wall of the mounting frame 1 through the support plate 20. The PLC controller 21 is electrically connected to the electric push rod 4 and the motor 9 respectively.

[0018] When using this utility model, according to the specifications of the butterfly plate to be processed, the corresponding upper mold 18 is installed on the bottom wall of the mounting block 17 by fixing bolts to ensure that the installation is firm. Then, check the correspondence accuracy between the upper mold 18 and the lower mold 2, confirm that the sealing gasket 19 is undamaged and deformed, and that the protective gasket 6 is tightly attached to the outer wall of the lower mold 2 without looseness. Place the butterfly plate to be covered stably in the forming area of ​​the lower mold 2, adjust the position of the butterfly plate so that the center of the butterfly plate is aligned with the center reference of the lower mold 2 to avoid the subsequent coating layer from shifting. When the PLC controller 21 issues a clamping command, the electric push rods 4 on both sides extend synchronously, driving the clamping block 5 to move closer to the center. The rubber protective pad 6 first contacts the outer wall of the lower mold 2 and gradually adheres to it. The elastic deformation of the protective pad 6 offsets the rigid impact of the clamping force, while increasing the friction with the lower mold 2, so as to achieve precise positioning and stable fixation of the lower mold 2 and prevent the lower mold 2 from shifting due to vibration or pressure during the processing. After confirming that the lower mold 2 is fixed, the PLC controller 21 controls the motor 9 to rotate forward. The motor 9 drives the screw 8 to rotate. Under the guidance and limiting action of the limit rod 10, the moving plate 11 moves smoothly downward along the axis of the screw 8. The connecting rod 12 synchronously drives the mounting plate 13, the sliding rod 14, the mounting block 17 and the upper mold 18 to move downward. When the upper mold 18 approaches the lower mold 2, the sealing gasket 19 on the bottom wall of the upper mold 18 first aligns with the sealing groove on the upper end face of the lower mold 2. As the upper mold 18 continues to move downward, the sealing gasket 19 gradually embeds into the sealing groove and fits tightly to form a closed molding cavity. At the same time, the upper mold 18 contacts the surface of the butterfly plate and applies pressure. After the mounting block 17 is subjected to the reaction force, it compresses the spring 16 and drives the sliding rod 14 to slide along the sliding groove of the mounting plate 13. The elastic buffering effect of the spring 16 effectively disperses the mold closing pressure and avoids damage to the butterfly plate or the covering material due to instantaneous impact force, ensuring that the covering layer and the butterfly plate substrate are evenly bonded. After the mold is closed until the covering material is fully formed, the PLC controller 21 controls the motor 9 to reverse, and the screw 8 rotates in the opposite direction to drive the moving plate 11 and the upper mold 18 to reset upwards, completing the mold opening action. Then, the PLC controller 21 controls the electric push rod 4 to shorten, and the clamping block 5 resets to both sides, releasing the clamping restriction on the lower mold 2. The operator can slide the lower mold 2 along the upper surface of the mounting frame 1 to remove the formed butterfly plate from the mold for part removal. After the parts are removed, clean the molding cavity of the lower mold 2 and the mating surface of the upper mold 18, remove any remaining coating material debris, check whether the sealing gasket 19 and protective gasket 6 are intact, and whether the spring 16 rebounds normally. After confirming that there are no abnormalities in any parts, the next batch of butterfly plates can be coated and molded. If butterfly plates of different specifications need to be processed, simply remove the fixing bolts on the bottom wall of the mounting block 17, replace the corresponding upper mold 18 and lower mold 2, and re-set the parameters through the PLC controller 21 before continuing to use them. The operation is convenient and highly versatile.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A butterfly plate overlay molding mold, comprising a mounting frame (1), characterized in that, The mounting frame (1) has a lower mold (2) slidably mounted on its upper surface. Fixing plates (3) are fixedly mounted on the outer walls of both sides of the mounting frame (1). Clamping blocks (5) are fixedly mounted on the inner walls of both fixing plates (3) via electric push rods (4). Protective pads (6) that mate with the outer walls of the lower mold (2) are fixedly mounted on the inner walls of both clamping blocks (5). Both protective pads (6) are made of rubber. A screw (8) is rotatably mounted on the upper surface of the mounting frame (1) via a lifting frame (7). A motor (9) connected to the screw (8) is fixedly mounted on the upper surface of the lifting frame (7). A limit mechanism is threaded onto the outer wall of the screw (8). A movable plate (11) is fixedly mounted on its bottom wall via a connecting mechanism. Two sliding rods (14) are slidably mounted on the upper surface of the mounting plate (13). Limit blocks (15) are fixedly mounted on the ends of the two sliding rods (14). An mounting block (17) is fixedly mounted on the other end of the two sliding rods (14). Springs (16) are installed on the outer walls of the two sliding rods (14). The two ends of the two springs (16) are elastically connected to the limit blocks (15) and the upper surface of the mounting block (17) in the same group, respectively. The bottom wall of the mounting block (17) is threadedly connected to an upper mold (18) via multiple fixing bolts.

2. The butterfly plate overlay molding die according to claim 1, characterized in that, The limiting mechanism includes a limiting rod (10) fixedly installed inside the lifting frame (7), and the limiting rod (10) slides through the moving plate (11).

3. The butterfly plate overlay molding die according to claim 2, characterized in that, The connecting mechanism includes two connecting rods (12) fixedly installed on the bottom wall of the movable plate (11), and the ends of the two connecting rods (12) are fixedly connected to the upper surface of the mounting plate (13).

4. The butterfly plate overlay molding die according to claim 3, characterized in that, The lower mold (2) has a sealing groove on its upper end face, and the upper mold (18) has a sealing gasket (19) fixedly installed on its bottom wall to cooperate with the sealing groove. The sealing gasket (19) is made of rubber.

5. The butterfly plate overlay molding die according to claim 4, characterized in that, The mounting bracket (1) has a PLC controller (21) fixedly mounted on its outer wall via a support plate (20). The PLC controller (21) is electrically connected to the electric push rod (4) and the motor (9).

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