Injection mold for a bearing seal ring

Abstract

The application relates to the technical field of injection molds, in particular to an injection mold for bearing sealing rings, which comprises a fixing base, a fixing frame is fixedly installed at the top of the fixing base, and a fixing plate is fixedly installed at the top of the fixing frame; an injection mold base is fixedly installed at the top of the fixing base through two fixing supports, a plurality of mold grooves are formed in the top of the injection mold base, a mold core is fixedly installed at the bottom of each mold groove; a jacking assembly is used for jacking the finished product out of the mold groove; and a cleaning assembly is used for scraping the excess material away from the top of the injection mold base. The cleaning plate moving along the surface of the injection mold base can automatically clean the molten material overflowing out of the mold groove, and in the cleaning process, the ball block continuously knocking the outer surface of the injection mold base can make the injection mold base vibrate, so that the molten material in each mold groove can be in close contact, the generation of bubbles is effectively reduced, and the injection quality of the bearing sealing ring is improved.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to an injection mold for a bearing seal ring. Background Technology

[0002] The primary function of bearing seals is to prevent external impurities, dust, and other contaminants from entering the bearing. These impurities can damage the bearing's lubrication system, leading to accelerated bearing wear and even failure. By preventing these impurities from entering, the seals effectively protect the bearing, extending its service life. Bearing seals also prevent the leakage of lubricating oil from inside the bearing.

[0003] In the existing technology, injection molds are usually used to produce bearing seals. Injection molds can precisely manufacture the shape and size of the bearing seals to ensure optimal matching with the bearing. Furthermore, through the design of the injection mold, multiple bearing seals can be produced at once.

[0004] However, existing injection molds have the following disadvantages when used: During injection molding, molten material is usually poured directly into each mold cavity. Since it is a manual operation, some molten material is likely to overflow outside the mold cavity. This overflowing molten material often needs to be cleaned manually, which is time-consuming and labor-intensive. During injection molding, gaps can easily exist between the molten materials in the mold groove, which can lead to the formation of air bubbles. The lack of a function to reduce air bubble formation affects the finished quality of the bearing seal ring. After injection molding, it is inconvenient to push the bearing seal ring out of the mold groove, which makes it impossible to achieve the purpose of automatic material discharge, thereby reducing the production efficiency of bearing seal rings. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art by providing an injection mold for bearing seals.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An injection mold for a bearing seal ring, comprising: A fixed base, wherein a fixed frame is fixedly installed on the top of the fixed base, and a fixed plate is fixedly installed on the top of the fixed frame; The injection mold base is fixedly installed on the top of the fixed base by two fixed brackets. The top of the injection mold base has multiple mold slots, and a mold core is fixedly installed at the bottom of each mold slot. A lifting assembly is used to eject the finished product from the mold cavity; A cleaning component is used to scrape excess material from the top of the injection mold base; The vibration component, which is linked to the cleaning component, is used to vibrate and level the material in the mold groove.

[0007] Preferably, the cleaning assembly includes two fixed blocks symmetrically fixedly installed on the top of the fixed plate, a lead screw rotatably installed between the two fixed blocks, a motor for driving the lead screw fixedly installed on the surface of one of the fixed blocks, a movable block threadedly connected to the outer wall of the lead screw, and the movable block slidably engaging with the top of the fixed plate, a cleaning plate fixedly installed on the surface of the movable block, and the cleaning plate slidably adhering to the top of the injection mold base.

[0008] Preferably, the lifting assembly includes multiple lifting rings that are slidably sleeved on the outer surface of each mold core and the inner surface of the corresponding mold groove. Two lifting rods are fixedly installed at the bottom of each lifting ring, and the lifting rods movably pass through the bottom of the corresponding mold groove. Each lifting rod located on the same side at the front and rear is fixedly connected by a fixing rod. A lifting plate is fixedly installed between the two fixing rods. An electric push rod for driving the lifting plate to rise and fall is fixedly installed on the top of the fixed seat.

[0009] Preferably, the vibration assembly includes a positioning block fixedly installed at the bottom of the cleaning plate. A first rack is movably passed through the side wall of the positioning block. A notched gear meshes with the first rack, and the notched gear is either separated from or meshed with the rack. A rotating shaft rotatably installed at the bottom of the cleaning plate is fixedly passed through the axis of the notched gear. A full gear is fixedly installed at the other end of the rotating shaft. A second rack fixedly installed on the surface of the fixed plate meshes with the full gear. A ball block is fixedly installed at the end of the first rack near the injection mold base. A spring is connected between the ball block and the positioning block.

[0010] Preferably, a collection box is slidably installed at both ends of the injection mold base, and a dovetail strip is fixedly installed on the opposite side of each of the two collection boxes, with the dovetail strip slidably inserted into the front side of the injection mold base.

[0011] Preferably, the bottom of the movable block has a notch that is slidably connected to the top of the fixed plate.

[0012] Preferably, the cleaning plate has push grooves on both side walls, and the push grooves are located directly above the injection mold base.

[0013] Compared with existing technologies, the advantages of the injection mold for a bearing seal ring provided by this invention are as follows: 1. By driving the lead screw to rotate by the motor, the moving block moves horizontally, so that the cleaning plate moves against the top of the injection mold base, which can realize the automatic cleaning of the overflowing molten material in each mold groove, reducing the tedious operation of trimming the edges after the subsequent bearing seal ring is formed. As the moving block moves, the full gear rolls along the second rack, causing the rotating shaft to drive the notched gear to rotate synchronously. Thus, under the intermittent meshing of the notched gear and the first rack, and the cooperation of the spring, the ball block will continuously strike the outer surface of the injection mold base, causing the injection mold base to vibrate. This allows the molten material in each mold cavity to come into close contact, effectively reducing the generation of air bubbles and thus improving the injection quality of the bearing seal ring. By controlling the electric push rod to move through the lifting plate, the two fixed rods and each lifting rod can drive each lifting ring to move upward synchronously, which can push the bearing seal ring in each mold groove out of the mold groove, thus making it convenient for workers to quickly remove the bearing seal ring, which is convenient and fast; In summary, this invention, through a cleaning plate that moves along the surface of the injection mold base, can automatically clean the molten material overflowing from the mold groove. During the cleaning process, the injection mold base is vibrated by continuously striking the balls on the outer surface of the injection mold base, so that the molten material in each mold groove can be in close contact, effectively reducing the generation of air bubbles, thereby improving the injection quality of the bearing seal ring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an injection mold for a bearing seal ring proposed in this invention; Figure 2 This is a cross-sectional view of an injection mold for a bearing seal ring proposed in this invention. Figure 3 This is a partial structural schematic diagram of an injection mold for a bearing seal ring proposed in this invention; Figure 4 This is a schematic diagram of the lifting assembly in the injection mold of a bearing seal ring according to the present invention; Figure 5 for Figure 3 Enlarged view of the structure at point A in the middle.

[0015] In the diagram: 1. Fixed base, 2. Fixed bracket, 3. Injection mold base, 4. Fixed frame, 5. Fixed plate, 6. Mold groove, 7. Mold core, 8. Fixed block, 9. Lead screw, 10. Motor, 11. Moving block, 12. Cleaning plate, 13. Push groove, 14. Lifting ring, 15. Lifting rod, 16. Fixed rod, 17. Lifting plate, 18. Electric push rod, 19. Positioning block, 20. First rack, 21. Notched gear, 22. Rotating shaft, 23. Ball block, 24. Spring, 25. Full gear, 26. Second rack, 27. Collection box, 28. Dovetail strip. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Reference Figures 1 to 5 An injection mold for a bearing seal ring, comprising: A fixed base 1 is provided, and a fixed bracket 4 is fixedly installed on the top of the fixed base 1. A fixed plate 5 is fixedly installed on the top of the fixed bracket 4.

[0018] The injection mold base 3 is fixedly installed on the top of the fixed base 1 by two fixed brackets 2. The top of the injection mold base 3 has multiple mold grooves 6, and a mold core 7 is fixedly installed at the bottom of each mold groove 6.

[0019] The lifting assembly is used to eject the finished product from the mold groove 6. The lifting assembly includes multiple lifting rings 14 that are slidably sleeved on the outer surface of each mold core 7 and the inner surface of the corresponding mold groove 6. Two lifting rods 15 are fixedly installed at the bottom of each lifting ring 14, and the lifting rods 15 move through the bottom of the corresponding mold groove 6. A fixing rod 16 is fixedly installed between each lifting rod 15 located on the same side at the front and rear. A lifting plate 17 is fixedly installed between the two fixing rods 16. An electric push rod 18 for driving the lifting plate 17 to rise and fall is fixedly installed on the top of the fixing seat 1. After the bearing seal ring in the injection mold base 3 has cooled, the electric push rod 18 is controlled to move through the lifting plate 17, and the two fixing rods 16 and each lifting rod 15 can drive each lifting ring 14 to move upward synchronously, so that the bearing seal ring in each mold groove 6 can be ejected to the outside of the mold groove 6, which makes it convenient for the staff to quickly remove the bearing seal ring.

[0020] The cleaning assembly is used to scrape excess material from the top of the injection mold base 3. The cleaning assembly includes two fixed blocks 8 symmetrically fixedly installed on the top of the fixed plate 5. A lead screw 9 is rotatably installed between the two fixed blocks 8. A motor 10 for driving the lead screw 9 is fixedly installed on the surface of one of the fixed blocks 8. A movable block 11 is threadedly connected to the outer wall of the lead screw 9. The bottom of the movable block 11 has a notch that slides with the top of the fixed plate 5. Under the sliding engagement of the notch and the fixed plate 5, the movable block 11 can be limited, ensuring that the movable block 11 can move axially along the lead screw 9 when subjected to force.

[0021] Furthermore, the movable block 11 is slidably engaged with the top of the fixed plate 5, and a cleaning plate 12 is fixedly installed on the surface of the movable block 11. The cleaning plate 12 is slidably attached to the top of the injection mold base 3. After the molten material is poured into each mold groove 6, the motor 10 is started to drive the lead screw 9 to rotate, which drives the movable block 11 to move horizontally, so that the cleaning plate 12 moves against the top of the injection mold base 3. This can realize the automatic cleaning of the molten material overflowing from each mold groove 6, reducing the tedious operation of trimming the edges after the bearing seal ring is formed.

[0022] A vibration assembly, linked to the cleaning assembly, is used to level the material in the mold cavity 6. The vibration assembly includes a positioning block 19 fixedly installed at the bottom of the cleaning plate 12. A first rack 20 is movably passed through the side wall of the positioning block 19. A notched gear 21 meshes with the first rack 20, and the notched gear 21 is either disengaged from or meshed with the rack 20. A rotating shaft 22, rotatably installed at the bottom of the cleaning plate 12, is fixedly passed through the shaft of the notched gear 21. A full gear 25 is fixedly installed at the other end of the rotating shaft 22. A second rack 26 fixedly installed on the surface of the fixed plate 5 meshes with the full gear 25. A ball block 23 is fixedly installed at the end of the first rack 20 near the injection mold base 3. A spring 24 is connected between the ball block 23 and the positioning block 19. When the shaft 22 moves, the rotating shaft 22 moves synchronously, and the full gear 25 rolls along the second rack 26, causing the rotating shaft 22 to drive the notched gear 21 to rotate synchronously. When the notched gear 21 meshes with the first rack 20, it will drive the ball block 23 to move and compress the spring 24. When the notched gear 21 does not mesh with the first rack 20, the ball block 23 will quickly reset and strike the outer surface of the injection mold base 3 under the action of the spring 24. Thus, under the continuous rotation of the notched gear 21, the ball block 23 will continuously strike the outer surface of the injection mold base 3, causing the injection mold base 3 to vibrate. This allows the molten material in each mold groove 6 to make close contact, effectively reducing the generation of air bubbles and thus improving the injection quality of the bearing seal ring.

[0023] Furthermore, collection boxes 27 are slidably installed at both ends of the injection mold base 3. Dovetail strips 28 are fixedly installed on opposite sides of the two collection boxes 27, and the dovetail strips 28 are slidably inserted into the front side of the injection mold base 3. Dovetail grooves are also provided on both sides of the injection mold base 3. When the cleaning plate 12 cleans the excess molten material on the surface of the injection mold base 3, it can be pushed into the corresponding collection box 27 to realize the automatic collection of excess molten material. After collection, the collection box 27 can be directly pulled out by the sliding engagement of the dovetail strips 28 and the corresponding dovetail grooves.

[0024] Furthermore, both sides of the cleaning plate 12 are provided with pusher grooves 13, and the pusher grooves 13 are located directly above the injection mold base 3. When the cleaning plate 12 cleans the molten material, the pusher grooves 13 can accommodate a certain amount of molten material, and with the obstruction at both ends of the pusher grooves 13, the molten material can be prevented from overflowing directly from the injection mold base 3 when pushed by the cleaning plate 12.

[0025] The working principle of this invention is as follows: In use, the molten material for preparing the bearing seal ring is first poured into each mold groove 6. Then, the motor 10 is started to drive the lead screw 9 to rotate, which drives the moving block 11 to move horizontally, so that the cleaning plate 12 moves against the top of the injection mold base 3. This can achieve automatic cleaning of the molten material overflowing from each mold groove 6, reducing the tedious operation of trimming the edges after the bearing seal ring is formed. Meanwhile, as the moving block 11 moves, the rotating shaft 22 moves synchronously, and the full gear 25 rolls along the second rack 26, causing the rotating shaft 22 to drive the notched gear 21 to rotate synchronously. When the notched gear 21 meshes with the first rack 20, it will drive the ball block 23 to move and compress the spring 24. When the notched gear 21 does not mesh with the first rack 20, the ball block 23 will quickly reset and strike the outer surface of the injection mold base 3 under the action of the spring 24. Thus, under the continuous rotation of the notched gear 21, the ball block 23 will continuously strike the outer surface of the injection mold base 3, causing the injection mold base 3 to vibrate. This allows the molten material in each mold groove 6 to come into close contact, effectively reducing the generation of air bubbles and thus improving the injection quality of the bearing seal ring. Finally, after the bearing seal ring in each mold groove 6 has cooled and formed, the electric push rod 18 can drive each lifting ring 14 to move upward synchronously through the lifting plate 17, the two fixed rods 16 and each lifting rod 15, so that the bearing seal ring in each mold groove 6 can be pushed out of the mold groove 6, which makes it convenient for the staff to quickly remove the bearing seal ring.

[0026] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An injection mold for a bearing seal ring, characterized by, include: A fixed base (1) is fixedly mounted on the top of the fixed base (1), and a fixed plate (5) is fixedly mounted on the top of the fixed plate (4). The injection mold base (3) is fixedly installed on the top of the fixed base (1) by two fixed brackets (2). The top of the injection mold base (3) is provided with multiple mold grooves (6), and a mold core (7) is fixedly installed at the bottom of each mold groove (6). A lifting assembly is used to eject the finished product from the mold groove (6); A cleaning component is used to scrape excess material from the top of the injection mold base (3); The vibration component, which is linked with the cleaning component, is used to vibrate and level the material in the mold groove (6).

2. The injection mold for a bearing seal ring according to claim 1, wherein The cleaning assembly includes two fixed blocks (8) symmetrically fixedly installed on the top of the fixed plate (5), and a lead screw (9) is rotatably installed between the two fixed blocks (8). A motor (10) for driving the lead screw (9) is fixedly installed on the surface of one of the fixed blocks (8). A moving block (11) is threadedly connected to the outer wall of the lead screw (9), and the moving block (11) is slidably engaged with the top of the fixed plate (5). A cleaning plate (12) is fixedly installed on the surface of the moving block (11), and the cleaning plate (12) is slidably attached to the top of the injection mold base (3).

3. The injection mold for a bearing seal ring of claim 1, wherein, The lifting assembly includes multiple lifting rings (14) that are slidably sleeved on the outer surface of each mold core (7) and the inner surface of the corresponding mold groove (6). Two lifting rods (15) are fixedly installed at the bottom of each lifting ring (14), and the lifting rods (15) move through the bottom of the corresponding mold groove (6). A fixing rod (16) is fixedly installed between each lifting rod (15) located on the same side at the front and back. A lifting plate (17) is fixedly installed between the two fixing rods (16). An electric push rod (18) for driving the lifting plate (17) to rise and fall is fixedly installed on the top of the fixing seat (1).

4. The injection mold for a bearing seal ring according to claim 2, characterized in that, The vibration assembly includes a positioning block (19) fixedly installed at the bottom of the cleaning plate (12). A first rack (20) is movably passed through the side wall of the positioning block (19). A notched gear (21) is externally meshed with the first rack (20). The notched gear (21) is either separated from or meshed with the first rack (20). A rotating shaft (22) rotatably installed at the bottom of the cleaning plate (12) is fixedly passed through the shaft of the notched gear (21). A full gear (25) is fixedly installed at the other end of the rotating shaft (22). A second rack (26) fixedly installed on the surface of the fixing plate (5) is externally meshed with the full gear (25). A ball block (23) is fixedly installed at the end of the first rack (20) near the injection mold base (3). A spring (24) is connected between the ball block (23) and the positioning block (19).

5. The injection mold for a bearing seal ring according to claim 1, characterized in that, Collection boxes (27) are slidably installed at both ends of the injection mold base (3), and dovetail strips (28) are fixedly installed on the opposite side of the two collection boxes (27), and the dovetail strips (28) are slidably inserted into the front side of the injection mold base (3).

6. The injection mold for a bearing seal ring according to claim 2, characterized in that, The bottom of the movable block (11) has a notch that is slidably connected to the top of the fixed plate (5).

7. The injection mold for a bearing seal ring according to claim 2, characterized in that, The cleaning plate (12) has push grooves (13) on both sides of its sidewalls, and the push grooves (13) are located directly above the injection mold base (3).

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