A moulding die for processing rubber and plastic seals

Abstract

The utility model belongs to the technical field of mould pressing die, and disclose a kind of mould pressing die for rubber and plastic sealing element processing, including support and hydraulic cylinder, the support below is provided with base, the base is fixedly connected with lower mould, movable plate is movably arranged between the base and lower mould, the movable plate is fixedly connected with several groups of mutually staggered arrangement's plugging block and material pushing block.The utility model when rubber and plastic sealing element is completed mould pressing between upper die and lower die, using hydraulic cylinder will upper die be lifted upwards, and whether rubber and plastic sealing element is adhered on lower die is observed, when rubber and plastic sealing element is adhered on lower die, can use displacement mechanism to drive movable plate to move towards right side, make material pushing block be in the mould pressing groove directly below, again using jacking mechanism to drive movable plate to move upwards, i.

Description

Technical Field

[0001] This utility model belongs to the field of molding die technology, specifically a molding die for processing rubber and plastic sealing parts. Background Technology

[0002] Rubber and plastic seals are critical components used in mechanical equipment and pipelines to prevent leakage, isolate media, and seal fluids or gases. These seals are made of rubber, plastic, or rubber-plastic composites, possessing excellent elasticity, chemical resistance, and temperature resistance. They are widely used in the automotive, industrial equipment, aerospace, and petrochemical industries. Molding dies are required when processing rubber and plastic seals.

[0003] A search revealed that patent CN220841139U discloses a molding die for rubber and plastic seals, comprising a base, a processing block fixedly connected to the top of the base, a limiting component mounted on the top of the base, a gantry frame fixedly connected to the outer side of the base, and an upper mold assembly mounted on the inner top wall of the gantry frame. The limiting component includes a limiting groove formed on the top of the processing block, a lower mold body inserted into the inner side of the limiting groove, and evenly distributed lower mold slots formed on the top of the lower mold body. An installation groove is formed on the top of the base, and a rotating rod is rotatably connected to the bottom of the installation groove via a bearing. A worm gear is fixedly connected to the outer side of the rotating rod. This molding die for rubber and plastic seals effectively improves the convenience of mold replacement, allowing workers to quickly and easily disassemble and replace the upper and lower molds, thus significantly enhancing the practicality of the molding die for rubber and plastic seals.

[0004] Analysis of the above technical solutions reveals that conventional molds employ a combination of upper and lower molds. Due to the adhesive nature of rubber and plastic seals, during the pressing, cooling, and molding process, the rubber parts tend to adhere to either the upper or lower mold. This necessitates the use of demolding tools or air guns for assisted demolding, making the demolding operation cumbersome and impacting production efficiency. Therefore, we provide a molding die for processing rubber and plastic seals to address these issues. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a molding die for processing rubber and plastic seals.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding die for processing rubber and plastic sealing parts, comprising a support and a hydraulic cylinder. A base is provided below the support, and a lower mold is fixedly connected to the base. A movable plate is movably arranged between the base and the lower mold. Several sets of interleaved sealing blocks and ejector blocks are fixedly connected to the movable plate. Several sets of receiving grooves are opened on the bottom surface of the lower mold. A displacement mechanism for sliding the movable plate is provided on one side of the support. A lifting mechanism for raising and lowering the movable plate is provided inside the base. An upper mold is fixedly connected to the telescopic end of the hydraulic cylinder. An ejector plate is movably arranged below the upper mold and is sleeved on the molding block on the bottom surface of the upper mold. Two sets of opposing ejector mechanisms are provided on the ejector plate.

[0007] Preferably, support columns are fixedly connected to the four corners of the bottom surface of the base, and the bottom ends of the support columns are fixedly connected to the base. Guide grooves are provided at the four corners of the movable plate, and the movable plate is slidably sleeved on the support columns through the guide grooves.

[0008] Preferably, the displacement mechanism includes a first cylinder and a first guide frame. The first cylinder is mounted on the side of the bracket, the first guide frame is fixedly connected to the side of the movable plate, a first slide rod is fixedly connected inside the first guide frame, a first slide plate is slidably sleeved on the first slide rod, and the first slide plate slides inside the first guide frame. The telescopic end of the first cylinder is connected to the first slide plate.

[0009] Preferably, the lifting mechanism includes a mounting cavity and a second guide frame. The mounting cavity is opened on the base, the second guide frame is fixed to the bottom surface of the movable plate, the inner wall of the second guide frame has a second slide rod, a second slide plate is slidably sleeved on the second slide rod, a second cylinder is installed in the mounting cavity, and the telescopic end of the second cylinder is connected to the second slide plate.

[0010] Preferably, the ejector mechanism includes two extrusion plates, which are located on both sides of the upper die. Guide rods are fixedly connected to both ends of the two extrusion plates, and the bottom end of each guide rod passes through the upper die and is fixedly connected to the ejector plate. A compression spring is sleeved on the surface of each guide rod, and the two ends of each compression spring are fixedly connected to the bottom surface of the extrusion plate and the upper surface of the upper die, respectively.

[0011] Preferably, the inner walls of the bracket are fixedly connected to top plates on both sides, and the two top plates are respectively located above the two extrusion plates.

[0012] Preferably, the diameter of the top material block is smaller than the mold groove diameter of the lower mold, the diameter of the sealing block is larger than the mold groove diameter of the lower mold, and the diameter of the sealing block is smaller than the diameter of the receiving groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the combined arrangement of a movable plate, a sealing block, a top material block, a storage groove, a displacement mechanism, a lifting mechanism, a top material plate, and a top material mechanism, allows the upper mold to be lifted upwards by a hydraulic cylinder after the rubber-plastic seal is molded between the upper and lower molds. The system observes whether the rubber-plastic seal adheres to the lower mold. If it does, the displacement mechanism moves the movable plate to the right, positioning the top material block directly below the molding groove. The lifting mechanism then moves the movable plate upwards, ejecting the rubber-plastic seal from the lower mold. This eliminates the need for additional tools to remove the seal. When the seal is found to be adhering to the bottom of the upper mold, the top material mechanism can be used to push it off the bottom surface of the upper mold, facilitating demolding and improving the device's practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the top plate structure of this utility model.

[0017] Figure 3 This is a schematic diagram showing the connection between the base, movable plate, and lower mold of this utility model;

[0018] Figure 4 This utility model Figure 3 A sectional view;

[0019] Figure 5 This is a schematic diagram of the structure of the movable plate of this utility model.

[0020] In the diagram: 1. Bracket; 2. Base; 3. Movable plate; 4. Lower mold; 5. First cylinder; 6. Support column; 7. Guide groove; 8. Upper mold; 9. Top plate; 10. Extrusion plate; 11. Guide rod; 12. Compression spring; 13. Top plate; 14. Hydraulic cylinder; 15. First guide frame; 16. First slide rod; 17. First slide plate; 18. Sealing block; 19. Top block; 20. Second cylinder; 21. Mounting cavity; 22. Second slide plate; 23. Second slide rod; 24. Storage groove; 25. Second guide frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1, as Figure 1-5As shown, this embodiment proposes a molding die for processing rubber and plastic seals, including a bracket 1 and a hydraulic cylinder 14. The hydraulic cylinder 14 is installed on the top of the bracket 1, and a base 2 is provided below the bracket 1. A lower mold 4 is fixedly connected to the base 2. A movable plate 3 is movably arranged between the base 2 and the lower mold 4, so that the movable plate 3 can slide and rise and fall between the base 2 and the lower mold 4, thereby ejecting the rubber and plastic seals adhered to the lower mold 4. Several sets of interleaved sealing blocks 18 and ejector blocks 19 are fixedly connected to the movable plate 3. The sealing blocks 18 are used to seal the bottom of the mold groove of the lower mold 4. To prevent leakage of the rubber and plastic sealing material, the ejector block 19 is used to eject the rubber and plastic sealing material from the mold groove of the lower mold 4. The bottom surface of the lower mold 4 has several sets of receiving grooves 24 for receiving the sealing blocks 18. Therefore, when the ejector block 19 ejects the rubber and plastic sealing material from the mold groove, the sealing blocks 18 will be inserted into the receiving grooves 24, thereby ensuring the normal lifting and lowering of the movable plate 3. A displacement mechanism for sliding the movable plate 3 is provided on one side of the bracket 1, and a lifting mechanism for lifting the movable plate 3 is provided in the base 2. With the setting of the displacement mechanism and the lifting mechanism, when the rubber and plastic sealing material is ejected from the mold groove, the sealing blocks 18 will be inserted into the receiving grooves 24, thereby ensuring the normal lifting and lowering of the movable plate 3. After the seal is molded between the upper mold 8 and the lower mold 4, the operator uses the hydraulic cylinder 14 to lift the upper mold 8 upwards and observes whether the rubber-plastic seal is stuck to the lower mold 4. If the rubber-plastic seal is stuck to the lower mold 4, the operator first uses the displacement mechanism to move the movable plate 3 to the right, so that the ejector block 19 is directly below the molding groove. Then, the lifting mechanism moves the movable plate 3 upwards, which can eject the rubber-plastic seal from the lower mold 4. Therefore, the operator does not need to use additional tools to remove the stuck rubber-plastic seal. The telescopic end of the hydraulic cylinder 14 is fixedly connected to the upper mold 8, and the lower end of the upper mold 8... The device is equipped with a top plate 13, which is fitted onto the molding block on the bottom surface of the upper mold 8. The top plate 13 has two sets of opposing ejection mechanisms. With the above structure, when the rubber and plastic seal is observed to be adhering to the bottom of the upper mold 8, the personnel can use the ejection mechanism to push the rubber and plastic seal off the bottom surface of the upper mold 8, which is conducive to the demolding of the rubber and plastic seal and improves the practicality of the device. The machinery, parts and equipment in this device are all conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0023] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details:

[0024] like Figure 1 , Figure 3 and Figure 5As shown, support columns 6 are fixedly connected to the four corners of the bottom surface of the base 2, and the bottom end of the support column 6 is fixedly connected to the base 2. Guide grooves 7 are provided at the four corners of the movable plate 3, and the movable plate 3 is slidably sleeved on the support column 6 through the guide grooves 7. With the above structure, the movable plate 3 can slide and rise and fall stably between the lower mold 4 and the base 2, and avoid the movable plate 3 from being misaligned or offset.

[0025] like Figure 1 , Figures 3 to 5 As shown, the displacement mechanism includes a first cylinder 5 and a first guide frame 15. The first cylinder 5 is installed on the side of the bracket 1, and the first guide frame 15 is fixedly connected to the side of the movable plate 3. A first slide rod 16 is fixedly connected inside the first guide frame 15. A first slide plate 17 is slidably sleeved on the first slide rod 16 and slides inside the first guide frame 15. The telescopic end of the first cylinder 5 is connected to the first slide plate 17. With the above structure, after the rubber and plastic seal is molded, the operation of the first cylinder 5 causes the first slide plate 17 to push the movable plate 3 to the right, thereby moving the sealing block 18 away from the mold groove of the lower mold 4. The ejector block 19 will also slide towards the mold groove until the sealing block 18 moves directly below the receiving groove 24. Then the ejector block 19 will also be located directly below the mold groove. Then, the lifting mechanism is used to control the movable plate 3 to rise, thereby ejecting the rubber and plastic seal that is attached to the lower mold 4.

[0026] like Figure 4 As shown, the lifting mechanism includes a mounting cavity 21 and a second guide frame 25. The mounting cavity 21 is opened on the base 2. The second guide frame 25 is fixed to the bottom surface of the movable plate 3. The inner wall of the second guide frame 25 has a second sliding rod 23. A second sliding plate 22 is slidably sleeved on the second sliding rod 23. A second cylinder 20 is installed in the mounting cavity 21. The telescopic end of the second cylinder 20 is connected to the second sliding plate 22. With the above structure, after the movable plate 3 has moved to the right, the second sliding plate 22 can be used to drive the movable plate 3 upward by operating the second cylinder 20, so that the top material block 19 pushes out the rubber and plastic seals adhering in the lower mold 4, which is convenient for personnel to pick up the material later. In addition, when the movable plate 3 moves to the right, the second sliding rod 23 will move in the second sliding plate 22. Therefore, the second sliding plate 22 and the second cylinder 20 will not move together. When the movable plate 3 moves upward, the first sliding rod 16 will slide in the first sliding plate 17. Therefore, the first cylinder 5 and the first sliding plate 17 will not rise together.

[0027] like Figure 1 and Figure 2As shown, the ejector mechanism includes two extrusion plates 10, which are located on both sides of the upper mold 8. Guide rods 11 are fixed to both ends of the two extrusion plates 10, and the bottom end of each guide rod 11 passes through the upper mold 8 and is fixed to the ejector plate 13. A compression spring 12 is sleeved on the surface of each guide rod 11, and the two ends of each compression spring 12 are fixed to the bottom surface of the extrusion plate 10 and the upper surface of the upper mold 8, respectively. With the above structure, when the rubber and plastic seal adheres to the molding block on the bottom surface of the upper mold 8, the two extrusion plates 10 are pressed downwards, which can drive the ejector plate 13 to move downwards, thereby ejecting the rubber and plastic seal adhered to the bottom surface of the upper mold 8 without the need for personnel to use additional tools to pry out the adhered rubber and plastic seal.

[0028] like Figure 1 As shown, top plates 9 are fixed to both sides of the inner wall of the bracket 1, and the two top plates 9 are respectively located above the two extrusion plates 10. With the setting of the top plates 9, when the upper mold 8 moves upward continuously by the hydraulic cylinder 14, the extrusion plates 10 will be extruded by the top plates 9, thereby realizing the downward movement of the top plate 13, so that the top plate 13 pushes out the seals adhering to the bottom surface of the upper mold 8 without the need for manual pressing of the extrusion plates 10. When the extrusion plates 10 move away from the top plates 9, the extrusion plates 10 are automatically pushed upward by the elastic force of the compression spring 12, thereby ensuring that the top plate 13 can be firmly attached to the upper mold 8.

[0029] like Figures 3 to 5 As shown, the diameter of the ejector block 19 is smaller than the mold groove diameter of the lower mold 4, so that the ejector block 19 can be smoothly inserted into the mold groove. The diameter of the sealing block 18 is larger than the mold groove diameter of the lower mold 4. The sealing block 18 can be used to seal the bottom of the mold groove to ensure the normal molding of the rubber and plastic seal. The diameter of the sealing block 18 is smaller than the diameter of the receiving groove 24, so that the sealing block 18 can be smoothly inserted into the receiving groove 24. When the movable plate 3 moves to the right, the ejector block 19 can be located at the mold groove of the lower mold 4, while the sealing block 18 will move away from the mold groove of the lower mold 4 and be located at the receiving groove 24. This allows the ejector block 19 to eject the rubber and plastic seal in the mold groove when the movable plate 3 moves upward. No additional tools are needed to remove the seal that is stuck in the mold groove. At the same time, the sealing block 18 will also be inserted into the receiving groove 24, ensuring the normal lifting and lowering of the movable plate 3.

[0030] The working principle and usage process of this utility model are as follows: After the rubber-plastic seal is molded between the upper mold 8 and the lower mold 4, the operator uses the hydraulic cylinder 14 to lift the upper mold 8 upwards and observes whether the rubber-plastic seal is stuck to the lower mold 4 or the upper mold 8. When the rubber-plastic seal is stuck to the lower mold 4, the first slide plate 17 is used to push the movable plate 3 to the right by operating the first cylinder 5, thereby moving the sealing block 18 away from the mold groove of the lower mold 4, and the ejector block 19 will also slide towards the mold groove until the sealing block 18 moves directly below the receiving groove 24, at which point the ejector block 19 will also be directly below the mold groove. Then, the operation is further performed using... The operation of the second cylinder 20 drives the second slide plate 22 to move the movable plate 3 upward, thereby causing the top material block 19 to push out the rubber and plastic seals adhering to the lower mold 4, which facilitates subsequent material removal by personnel. When the rubber and plastic seals are adhering to the bottom of the upper mold 8, the hydraulic cylinder 14 is used to continuously drive the upper mold 8 upward, so that the two extrusion plates 10 contact the two top plates 9 and press downward, which can drive the guide rod 11 and the top material plate 13 downward, thereby pushing out the rubber and plastic seals adhering to the bottom surface of the upper mold 8. There is no need for personnel to use additional tools to pry out the adhering rubber and plastic seals, which is conducive to the demolding of rubber and plastic seals and improves the practicality of the device.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for processing rubber and plastic seals, comprising a support (1) and a hydraulic cylinder (14), characterized in that: A base (2) is provided below the support (1). A lower mold (4) is fixedly connected to the base (2). A movable plate (3) is movably arranged between the base (2) and the lower mold (4). Several sets of interleaved blocking blocks (18) and top material blocks (19) are fixedly connected to the movable plate (3). Several sets of storage slots (24) are opened on the bottom surface of the lower mold (4). A displacement mechanism for sliding the movable plate (3) is provided on one side of the support (1). A lifting mechanism for raising and lowering the movable plate (3) is provided inside the base (2). An upper mold (8) is fixedly connected to the telescopic end of the hydraulic cylinder (14). A top material plate (13) is movably arranged below the upper mold (8). The top material plate (13) is sleeved on the molding block on the bottom surface of the upper mold (8). Two sets of opposing top material mechanisms are provided on the top material plate (13).

2. The molding die for processing rubber and plastic seals according to claim 1, characterized in that: The base (2) has four corners of the bottom surface with support columns (6) fixedly connected, and the bottom end of the support column (6) is fixedly connected to the base (2). The four corners of the movable plate (3) are provided with guide grooves (7), and the movable plate (3) is slidably sleeved on the support column (6) through the guide grooves (7).

3. The molding die for processing rubber and plastic seals according to claim 2, characterized in that: The displacement mechanism includes a first cylinder (5) and a first guide frame (15). The first cylinder (5) is installed on the side of the bracket (1). The first guide frame (15) is fixedly connected to the side of the movable plate (3). A first slide rod (16) is fixedly connected inside the first guide frame (15). A first slide plate (17) is slidably sleeved on the first slide rod (16). The first slide plate (17) slides inside the first guide frame (15). The telescopic end of the first cylinder (5) is connected to the first slide plate (17).

4. The molding die for processing rubber and plastic seals according to claim 3, characterized in that: The lifting mechanism includes a mounting cavity (21) and a second guide frame (25). The mounting cavity (21) is opened on the base (2). The second guide frame (25) is fixed to the bottom surface of the movable plate (3). The inner wall of the second guide frame (25) has a second slide rod (23). A second slide plate (22) is slidably sleeved on the second slide rod (23). A second cylinder (20) is installed in the mounting cavity (21). The telescopic end of the second cylinder (20) is connected to the second slide plate (22).

5. A molding die for processing rubber and plastic seals according to claim 1, characterized in that: The ejector mechanism includes two extrusion plates (10), which are located on both sides of the upper mold (8). Both ends of the two extrusion plates (10) are fixedly connected to guide rods (11), and the bottom end of each guide rod (11) passes through the upper mold (8) and is fixedly connected to the ejector plate (13). Each guide rod (11) is fitted with a compression spring (12), and both ends of each compression spring (12) are fixedly connected to the bottom surface of the extrusion plate (10) and the upper surface of the upper mold (8).

6. The molding die for processing rubber and plastic seals according to claim 5, characterized in that: The bracket (1) has top plates (9) fixedly connected to both sides of its inner wall, and the two top plates (9) are located above the two extrusion plates (10) respectively.

7. A molding die for processing rubber and plastic seals according to claim 1, characterized in that: The diameter of the top material block (19) is smaller than the mold groove diameter of the lower mold (4), the diameter of the sealing block (18) is larger than the mold groove diameter of the lower mold (4), and the diameter of the sealing block (18) is smaller than the diameter of the receiving groove (24).

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