Compression molding device for rubber seal production

Abstract

This utility model discloses a compression molding device for rubber sealing production, relating to the field of rubber sealing compression molding technology. It includes a U-shaped processing table, with a fixed plate fixedly connected to the center of the U-shaped processing table. The fixed plate has an insertion slot into which a molding die is inserted. Two symmetrical snap-fit ​​slots are provided at the lower end of the fixed plate. An electric push rod is detachably connected to the top of the U-shaped processing table. The output end of the electric push rod passes through the U-shaped processing table and is fixedly connected to an upper pressure plate. A molding punch that mates with the molding die is fixedly connected to the lower end of the upper pressure plate. This compression molding device for rubber sealing production uses a snap-fit ​​block and spring linkage to achieve rapid mold positioning and fixation, avoiding wear and displacement. A guide rod, in conjunction with a slider and spring, ensures the upper pressure plate presses down vertically, resulting in uniform force on the raw material. A servo motor drives a worm gear to lift the finished product using a lifting rod. The self-locking characteristic ensures stable unloading and improves efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing compression molding technology, and in particular to a compression molding device for rubber sealing production. Background Technology

[0002] Existing rubber sealing compression molding devices have significant technical defects: mold replacement requires tools for positioning and fixing, the disassembly and assembly process is cumbersome and prone to wear and tear on the mold and equipment due to hard collisions; the upper pressure plate lacks a precision guiding mechanism during the pressing process, often causing uneven stress on the rubber raw material due to misalignment, resulting in deviations in the profile of the molded part and structural defects; the lack of an automatic ejection structure during unloading makes the finished product prone to damage from falling back due to external forces, and the insufficient stability of mold positioning seriously affects production efficiency and the consistency of molding quality, bringing certain adverse effects to the user experience. In order to overcome the shortcomings of the existing technology, we propose a compression molding device for rubber sealing production. Utility Model Content

[0003] The main objective of this invention is to provide a compression molding device for rubber sealing production, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A compression molding device for producing rubber seals includes a U-shaped processing table. A fixed plate is fixedly connected to the center of the U-shaped processing table. An insertion groove is provided on the fixed plate, and a molding die is inserted into the insertion groove. Two snap-fit ​​grooves are symmetrically provided at the lower end of the fixed plate. An electric push rod is detachably connected to the top of the U-shaped processing table. The output end of the electric push rod passes through the U-shaped processing table and is fixedly connected to an upper pressure plate. A molding punch that mates with the molding die is fixedly connected to the lower end of the upper pressure plate.

[0006] The bottom of the U-shaped processing table is detachably connected to a servo motor and a bearing seat. The output shaft of the servo motor is detachably connected to a rotating rod, and a worm gear is fixedly connected to the middle of the rotating rod. A worm wheel meshes with one side of the worm gear, and a threaded rod is fixedly connected inside the worm wheel. A lifting rod is threadedly connected to the outer surface of the threaded rod.

[0007] Preferably, two rectangular grooves are symmetrically formed in the molding die. A first spring is fixedly connected in the rectangular groove, and a limit plate is fixedly connected to one end of the first spring. A snap-fit ​​block is fixedly connected to the lower end of the limit plate. One side of the snap-fit ​​block is inclined, and the snap-fit ​​block engages with the snap-fit ​​groove.

[0008] Preferably, two sets of guide rods are symmetrically fixedly connected to the upper end of the fixed plate, and each set of guide rods consists of two rods. A second spring is sleeved on the outer surface of each of the multiple guide rods. Two sliders are fixedly connected to both sides of the upper pressure plate, and the sliders are slidably connected to the outer surface of the guide rods.

[0009] Preferably, the output shaft of the servo motor is detachably connected to the rotating rod via a coupling, and the rotating rod is rotatably connected to the bearing housing. The worm gear is fixedly connected to the middle of the rotating rod, and the worm gear meshes with the worm wheel for transmission.

[0010] Preferably, the shape of the bottom forming punch of the upper pressure plate matches the forming contour of the rubber seal, and the interior of the forming mold has a forming groove that mates with the forming punch.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This compression molding device for rubber sealing production uses a linkage structure of a snap-fit ​​block, a first spring, and a snap-fit ​​groove. When the molding die is inserted, it automatically snaps into place by the inclined surface extrusion spring, achieving rapid positioning and fixation without tools. This significantly shortens the die changeover time. The spring buffer design avoids hard collisions during installation, reducing wear on the die and equipment. At the same time, the snap-fit ​​structure effectively prevents die displacement during molding, ensuring production stability.

[0013] This compression molding device for rubber sealing production uses a guide rod and a slider covered with a second spring. When the upper pressure plate is pressed down, the slider slides precisely along the guide rod to achieve vertical guidance. The spring buffer can offset the interference of lateral forces, ensuring that the forming punch and the mold groove are always coaxially aligned. This structure can effectively prevent the upper pressure plate from shifting downward, so that the rubber raw material is subjected to uniform force during compression, improving the contour consistency and structural reliability of the molded parts.

[0014] This compression molding device for rubber sealing production uses a worm gear transmission mechanism driven by a servo motor to drive a threaded rod. The motor controls the precise lifting of the lifting rod, enabling automated ejection and unloading of the formed rubber seals. The self-locking characteristic of the worm gear ensures that the lifting rod remains in a stable position after unloading, preventing the finished product from falling back and causing damage. This improves production efficiency and reduces labor intensity. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the internal structure of the molding die of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention.

[0019] In the diagram: 1. U-shaped processing table; 2. Fixing plate; 3. Insertion slot; 4. Forming mold; 5. Snap-fit ​​slot; 6. Rectangular slot; 7. First spring; 8. Limiting plate; 9. Snap-fit ​​block; 10. Electric push rod; 11. Upper pressure plate; 12. Guide rod; 13. Second spring; 14. Slider; 15. Servo motor; 16. Bearing seat; 17. Rotating rod; 18. Worm gear; 19. Worm wheel; 20. Threaded rod; 21. Lifting rod. Detailed Implementation

[0020] 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.

[0021] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a compression molding device for rubber sealing production includes a U-shaped processing table 1, with a fixed plate 2 fixedly connected to its center. The upper surface of the fixed plate 2 has an insertion groove 3 adapted to the molding die 4. The molding die 4 is initially positioned by horizontally inserting into the insertion groove 3. Two rectangular grooves 6 are symmetrically opened inside the molding die 4. A first spring 7 is fixedly connected inside the rectangular groove 6. The other end of the first spring 7 is fixedly connected to a limiting plate 8. The lower end of the limiting plate 8 extends to the outside of the molding die 4 and is fixedly connected to a snap-fit ​​block 9. One side of the snap-fit ​​block 9 has a beveled structure. When the molding die 4 is inserted into the insertion groove 3, the beveled surface of the snap-fit ​​block 9 contacts the lower end of the fixed plate 2. After being squeezed, it drives the limiting plate 8 to compress the first spring 7. When the snap-fit ​​block 9 aligns with the snap-fit ​​groove 5, the first spring 7 returns to its original position, and the snap-fit ​​block 9 snaps into the snap-fit ​​groove 5, realizing the rapid fixing of the molding die 4.

[0022] Example 2, as Figure 1 , Figure 2 and Figure 4 As shown, a compression molding device for producing rubber seals includes an electric push rod 10 detachably connected to the top of a U-shaped processing table 1 via bolts. The output end of the electric push rod 10 passes through the U-shaped processing table 1 and is fixedly connected to an upper pressure plate 11. The lower end of the upper pressure plate 11 is fixedly connected to a forming punch that matches the forming mold 4. The shape of the forming punch matches the forming contour of the rubber seal. The forming mold 4 has a forming groove inside that matches the forming punch. Two sets of guide rods 12 are symmetrically fixedly connected to the upper end of a fixed plate 2. A second spring 13 is sleeved on the outer surface of the guide rod 12. Two sliders 14 are fixedly connected to both sides of the upper pressure plate 11. The sliders 14 are slidably connected to the guide rods 12. When the electric push rod 10 drives the upper pressure plate 11 to press down, the sliders 14 slide along the guide rods 12, and the second springs 13 are compressed and stored, thereby ensuring that the pressing process of the upper pressure plate 11 is smooth and avoiding deviation.

[0023] The bottom of the U-shaped processing table 1 is detachably connected to a servo motor 15 and a bearing seat 16 via bolts. The output shaft of the servo motor 15 is detachably connected to a rotating rod 17 via a coupling. The other end of the rotating rod 17 is rotatably connected to the bearing seat 16. A worm gear 18 is fixedly connected to the middle of the rotating rod 17. The worm gear 18 meshes with a worm wheel 19 for transmission. A threaded rod 20 is fixedly connected inside the worm wheel 19. A lifting rod 21 is threadedly connected to the outer surface of the threaded rod 20. When the servo motor 15 works, it drives the rotating rod 17 and the worm gear 18 to rotate. Through the worm gear and worm wheel transmission, the threaded rod 20 is rotated, which in turn drives the lifting rod 21 to move axially along the threaded rod 20. This can be used to assist in ejecting the formed rubber seal.

[0024] It should be noted that this utility model is a compression molding device for rubber sealing production. In use, the molding die 4 is first horizontally inserted along the insertion slot 3 of the fixed plate 2. At this time, the locking block 9 at the lower end of the molding die 4 contacts the lower end of the fixed plate 2 due to its inclined structure. Under compression, it drives the limiting plate 8 to compress the first spring 7 in the rectangular groove 6. When the locking block 9 moves to align with the locking groove 5, the first spring 7 resets and pushes the locking block 9 into the locking groove 5, completing the rapid fixing of the die. Then, the rubber raw material is placed into the molding groove of the molding die 4. The electric push rod 10 at the top of the U-shaped processing table 1 is activated, and its output end pushes the upper pressure plate 11 downwards along the guide rod 12 on the fixed plate 2. The molding punch at the lower end of the upper pressure plate 11 gradually embeds into the molding groove of the molding die 4. During this process… The slider 14 slides along the guide rod 12 and compresses the second spring 13 sleeved on the guide rod 12. The buffering effect of the second spring 13 ensures the smoothness of the pressing process of the upper pressure plate 11 until the forming punch and the forming groove are fully engaged. Pressure is applied to the rubber material to compress and form it. After forming, the electric push rod 10 moves in the opposite direction to drive the upper pressure plate 11 to rise and reset. At this time, the servo motor 15 at the bottom of the U-shaped processing table 1 is started. Its output shaft drives the rotating rod 17 to rotate through the coupling. The worm 18 in the middle of the rotating rod 17 rotates accordingly and meshes with the worm wheel 19. The threaded rod 20 in the worm wheel 19 rotates synchronously, causing the threaded lifting rod 21 to move upward along the axial direction of the threaded rod 20, pushing the formed rubber seal out of the forming mold 4 and completing the unloading of the finished rubber seal.

[0025] 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 compression molding device for rubber sealing production, comprising a U-shaped processing table (1), characterized in that: A fixing plate (2) is fixedly connected to the center of the U-shaped processing table (1). A slot (3) is provided on the fixing plate (2), and a forming mold (4) is inserted into the slot (3). Two snap-fit ​​slots (5) are symmetrically provided at the lower end of the fixing plate (2). An electric push rod (10) is detachably connected to the top of the U-shaped processing table (1). The output end of the electric push rod (10) passes through the U-shaped processing table (1) and is fixedly connected to an upper pressure plate (11). A forming punch that cooperates with the forming mold (4) is fixedly connected to the lower end of the upper pressure plate (11). The bottom of the U-shaped processing table (1) is detachably connected to a servo motor (15) and a bearing seat (16). The output shaft of the servo motor (15) is detachably connected to a rotating rod (17), and a worm gear (18) is fixedly connected in the middle of the rotating rod (17). A worm wheel (19) is meshed on one side of the worm gear (18). A threaded rod (20) is fixedly connected inside the worm wheel (19), and a lifting rod (21) is threadedly connected to the outer surface of the threaded rod (20).

2. The compression molding apparatus for rubber sealing production according to claim 1, characterized in that: The molding die (4) has two rectangular slots (6) symmetrically opened inside. A first spring (7) is fixedly connected inside the rectangular slot (6), and a limiting plate (8) is fixedly connected to one end of the first spring (7). A snap-fit ​​block (9) is fixedly connected to the lower end of the limiting plate (8). One side of the snap-fit ​​block (9) is an inclined surface, and the snap-fit ​​block (9) is snap-fitted into the snap-fit ​​slot (5).

3. The compression molding apparatus for rubber sealing production according to claim 1, characterized in that: The upper end of the fixed plate (2) is symmetrically fixed with two sets of guide rods (12), and each set of guide rods (12) consists of two rods. The outer surface of each of the multiple guide rods (12) is fitted with a second spring (13). The upper pressure plate (11) is fixedly connected with two sliders (14) on both sides, and the sliders (14) are slidably connected to the outer surface of the guide rods (12).

4. The compression molding apparatus for rubber sealing production according to claim 1, characterized in that: The output shaft of the servo motor (15) is detachably connected to the rotating rod (17) via a coupling, and the rotating rod (17) is rotatably connected to the bearing seat (16). The worm (18) is fixedly connected to the middle of the rotating rod (17), and the worm (18) meshes with the worm wheel (19) for transmission.

5. The compression molding apparatus for rubber sealing production according to claim 1, characterized in that: The shape of the bottom forming punch of the upper pressure plate (11) matches the forming contour of the rubber seal, and the interior of the forming mold (4) is provided with a forming groove that cooperates with the forming punch.

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