Engine oil cover injection molding device

Abstract

The utility model discloses an engine oil cover injection molding device which comprises an upper mold assembly and a lower mold assembly, and the upper mold assembly comprises an upper mold base, a first upper mold plate and a second upper mold plate which are fixedly connected in sequence from top to bottom; a plurality of forming cavities are formed in the lower surface of the second upper mold plate; the lower die assembly comprises a lower die base, fixing blocks are fixedly connected to the two sides of the lower die base respectively, and a first lower die plate, a second lower die plate and a third lower die plate are sequentially and fixedly connected to the upper portions of the fixing blocks from bottom to top. A first rotating shaft is installed in the first lower die plate, a forming fixing sleeve is installed at the top end of the first rotating shaft, and the forming fixing sleeve and the forming cavity are connected in a matched and inserted mode to form a forming gap. Through the arrangement of the stripping mechanism, when injection molding of the engine oil cover is completed, the driving motor drives the molding fixing sleeve to rotate by means of transmission of the chain wheel and the gear, so that the anti-rotation groove in the molding fixing sleeve is smoothly separated from the anti-rotation ratchet wheel on the engine oil cover, a worker can conveniently take materials, and the material taking time is effectively saved.

Description

Technical Field

[0001] This utility model relates to the technical field of oil cap production equipment, specifically to an oil cap injection molding device. Background Technology

[0002] As containers for storing and transporting engine oil, the oil bottle's cap plays a crucial role in maintaining oil quality and preventing leakage. During storage, engine oil must be protected from impurities and evaporation; the sealing performance of the oil cap directly determines the quality of the stored oil.

[0003] Traditional oil caps have several drawbacks in injection molding production. For example, in the demolding process, older injection molding equipment lacked efficient ejection mechanisms, and the threaded demolding of the oil cap mainly relied on manual operation. This method not only resulted in low demolding efficiency, significantly impacting production progress, but also made it easy to damage the oil cap due to improper operation during manual processing, leading to a lower product yield. Furthermore, traditional equipment could not ensure precise separation of the molded retaining sleeve from the oil cap during demolding.

[0004] Based on the above, this utility model proposes an oil cap injection molding device, which can effectively solve the above problems. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing an oil cap injection molding device.

[0006] This utility model is achieved through the following technical solution:

[0007] An oil filler cap injection molding apparatus includes an upper mold assembly and a lower mold assembly, wherein:

[0008] The upper mold assembly includes an upper mold base, a first upper mold plate, and a second upper mold plate, which are fixedly connected from top to bottom. A positioning ring is provided at the top center of the upper mold base, and the upper mold base and the first upper mold plate are provided with glue inlet channels corresponding to the positioning ring. A glue channel is opened on the upper surface of the second upper mold plate, and the center of the glue channel is directly below the glue inlet channel. Multiple pouring channels penetrating the second upper mold plate are opened at the end of the glue channel, and the pouring channels are located on the same straight line. Multiple molding cavities communicating with the pouring channels are opened on the lower surface of the second upper mold plate.

[0009] The lower mold assembly includes a lower mold base, with fixing blocks fixedly connected to both sides of the lower mold base. A first lower template, a second lower template, and a third lower template are fixedly connected to the upper part of the fixing blocks from bottom to top. A stripping mechanism is provided on the upper surface of the lower mold base. Multiple spaced first rotating bearings are installed inside the first lower template. The first rotating bearings are rotatably connected to a first rotating shaft. The top end of the first rotating shaft passes through the first lower template, the second lower template, and the third lower template and is fitted with a forming fixing sleeve. The forming fixing sleeve is inserted into the forming cavity to form a forming gap.

[0010] According to the above technical solution, as a further preferred technical solution, the top outer periphery of the molded fixing sleeve is provided with a plurality of anti-rotation grooves evenly distributed at equal angles, and the top surface of the molded fixing sleeve is fixedly connected with a plurality of connecting posts evenly distributed at equal angles.

[0011] According to the above technical solution, as a further preferred technical solution, the unloading mechanism includes a drive motor, which is fixed to the lower mold base by a motor bracket. A first sprocket is fixedly connected to the output end of the drive motor. A second sprocket is connected to the first sprocket via a chain. The second sprocket is fixedly connected to the lower end of a second rotating shaft. The second rotating shaft is rotatably connected to the lower mold base. A first gear is fixedly connected to the top end of the second rotating shaft. Second gears are meshed with both sides of the first gear. The second gear is fixedly connected to a third rotating shaft. A second rotating bearing is rotatably connected to the third rotating shaft. The second rotating bearing is installed inside the first lower mold plate. Multiple third gears are meshed with the second gears. The third gears are fixedly connected to the first rotating shaft.

[0012] According to the above technical solution, as a further preferred technical solution, the top of the third lower template is provided with a sliding plate mechanism. The sliding plate mechanism includes sliding grooves on both sides of the third lower template, and two forming sliding plates are slidably connected between the two sliding grooves. The opposite ends of the two forming sliding plates abut against each other and enclose to form a forming hole for accommodating the top of the forming fixing sleeve. Push blocks for pushing the forming sliding plates are fixedly connected to both sides of the second upper template. Limiting blocks are fixedly connected to the bottom of the push blocks. The third lower template has a limiting slot that cooperates with the limiting blocks. Inclined holes are opened on both sides of the forming sliding plates. Inclined rods are connected to the inclined holes. The top of the inclined rods is fixedly connected to the second upper template. The third lower template has an oblique waist-shaped hole for the inclined rods to pass through.

[0013] According to the above technical solution, as a further preferred technical solution, the inner wall of the molding cavity is provided with a plurality of grooves evenly distributed at equal angles.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] This utility model provides an oil cap injection molding device. By setting multiple molding cavities on the lower surface of the second upper mold, and through the interaction between the molding cavities and the molding fixing sleeve on the lower mold assembly, multiple oil caps can be molded at once, improving production efficiency. At the same time, by setting a material ejection mechanism, when the oil cap is injection molded, the drive motor drives the molding fixing sleeve to rotate through the transmission of sprockets and gears, so that the anti-rotation groove on the molding fixing sleeve can be smoothly disengaged from the anti-rotation ratchet on the oil cap, eliminating the jamming state between the two, thereby greatly facilitating the worker's material handling operation and effectively saving material handling time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the second upper template structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the second upper template structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the lower mold assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the material unloading mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the third lower template structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the molded skateboard structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the molding and fixing sleeve mechanism of this utility model. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0025] An oil filler cap injection molding apparatus includes an upper mold assembly and a lower mold assembly, wherein:

[0026] The upper mold assembly includes an upper mold base 1, a first upper mold plate 2, and a second upper mold plate 3, which are fixedly connected from top to bottom. A positioning ring 4 is provided at the top center of the upper mold base 1, and the upper mold base 1 and the first upper mold plate 2 are provided with glue inlet channels 5 corresponding to the positioning ring 4. A glue channel 6 is provided on the upper surface of the second upper mold plate 3, and the center of the glue channel 6 is directly below the glue inlet channel 5. Multiple pouring channels 7 are provided at the end of the glue channel 6, which penetrate the second upper mold plate 3 and are located on the same straight line. Multiple molding cavities 8 are provided on the lower surface of the second upper mold plate 3, which are interconnected with the pouring channels 7.

[0027] The lower mold assembly includes a lower mold base 9, with fixing blocks 10 fixedly connected to both sides of the lower mold base 9. A first lower template 11, a second lower template 12, and a third lower template 13 are fixedly connected to the upper part of the fixing blocks 10 from bottom to top. A material ejection mechanism is provided on the upper surface of the lower mold base 9. A plurality of first rotating bearings 14 are installed inside the first lower template 11 at intervals. The first rotating bearings 14 are rotatably connected to a first rotating shaft 15. The top end of the first rotating shaft 15 passes through the first lower template 11, the second lower template 12, and the third lower template 13 and is fitted with a forming fixing sleeve 16. The forming fixing sleeve 16 is engaged with the forming cavity 8 to form a forming gap.

[0028] This invention improves production efficiency by providing multiple forming cavities 8 on the lower surface of the second upper mold 3 and the mutual cooperation between the forming cavities 8 and the forming fixing sleeve 16 on the lower mold assembly, which can form multiple oil caps at one time.

[0029] Furthermore, in another embodiment, the top outer periphery of the molded fixing sleeve 16 is provided with a plurality of anti-rotation grooves 27 evenly distributed at equal angles, and the top surface of the molded fixing sleeve 16 is fixedly connected with a plurality of connecting posts 28 evenly distributed at equal angles.

[0030] By setting the anti-rotation groove 27, an anti-rotation ratchet structure can be formed at the corresponding position on the inner side wall of the oil cap during injection molding. The anti-rotation ratchet can effectively prevent the oil cap from rotating accidentally during subsequent use. By setting the connecting post 28, a connecting hole will be formed on the inner side wall of the oil cap during injection molding. The connecting hole can be used to install sealing gaskets and other related accessories, which greatly expands the functionality of the oil cap.

[0031] Furthermore, in another embodiment, the stripping mechanism includes a drive motor 17, which is fixed to the lower mold base 9 via a motor bracket 18. A first sprocket 19 is fixedly connected to the output end of the drive motor 17. The first sprocket 19 is connected to a second sprocket 20 via a chain. The second sprocket 20 is fixedly connected to the lower end of a second rotating shaft 21. The second rotating shaft 21 is rotatably connected to the lower mold base 9. A first gear 22 is fixedly connected to the top end of the second rotating shaft 21. Second gears 23 are meshed with both sides of the first gear 22. The second gears 23 are fixedly connected to a third rotating shaft 24. A second rotating bearing 25 is rotatably connected to the third rotating shaft 24. The second rotating bearing 25 is installed inside the first lower mold plate 11. Multiple third gears 26 are meshed with the second gears 23. The third gears 26 are fixedly connected to the first rotating shaft 15.

[0032] By setting up a material removal mechanism, once the oil cap is injection molded, the drive motor 17 starts, driving the first sprocket 19 to rotate. The first sprocket 19 is connected to the second sprocket 20 via a chain, thereby transmitting power to the second rotating shaft 21. The first gear 22 fixed at the top of the second rotating shaft 21 drives the second gears 23 meshing on both sides to rotate. The second gears 23 then mesh with multiple third gears 26, which are fixed to the first rotating shaft 15, thus driving the molding fixing sleeve to rotate. During this process, the rotation of the molding fixing sleeve 26 allows the anti-rotation groove 27 to disengage smoothly from the anti-rotation ratchet on the oil cap, eliminating the jamming state between them. This greatly facilitates the worker's material removal operation and effectively saves material removal time.

[0033] Furthermore, in another embodiment, the top of the third lower template 13 is provided with a sliding plate mechanism, the sliding plate mechanism including sliding grooves 29 on both sides of the third lower template 13, two forming sliding plates 30 are slidably connected between the two sliding grooves 29, the opposite ends of the two forming sliding plates 30 abut against each other and surround to form a forming hole 31 for accommodating the top of the forming fixing sleeve 16; push blocks 35 for pushing the forming sliding plates 30 are fixedly connected to both sides of the second upper template 3, the bottom of the push blocks 35 is fixedly connected to a limiting insert 36, the third lower template 13 is provided with a limiting slot 37 that cooperates with the limiting insert 36; oblique holes 32 are provided on both sides of the forming sliding plate 30, oblique rods 33 are connected to the oblique holes 32, the top of the oblique rods 33 is fixedly connected to the second upper template 3, and the third lower template 13 is provided with an oblique waist-shaped hole 34 for the oblique rods 33 to pass through.

[0034] By setting up a sliding plate mechanism, when the upper mold assembly descends, the push block 35 of the second upper mold plate 3 pushes the forming sliding plate to move along the slide groove 29. The inclined rod 33, in cooperation with the inclined hole 32 and the inclined waist-shaped hole 34, guides the forming sliding plate 30 to accurately close and form the forming hole. When the upper mold assembly rises, the push block 35 and the inclined rod 33 drive the forming sliding plate 30 to separate, making it easy to remove the formed oil cap.

[0035] Furthermore, in another embodiment, the inner wall of the molding cavity 8 is provided with a plurality of grooves 38 that are evenly distributed at equal angles.

[0036] By setting the groove 38, the oil cap can be effectively restricted from rotating synchronously with the molding fixing sleeve 16, ensuring that the molded oil cap remains stable when the ejector mechanism drives the molding fixing sleeve 16 to rotate, making the demolding process smoother, avoiding demolding failure caused by synchronous rotation of the oil cap, and significantly improving the demolding success rate.

[0037] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the oil cap injection molding device of this utility model, and can produce the positive effects described in this utility model.

[0038] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0039] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An injection molding device for an oil filler cap, characterized in that: Includes an upper mold assembly and a lower mold assembly, wherein: The upper mold assembly includes an upper mold base (1), a first upper template (2), and a second upper template (3) that are fixedly connected from top to bottom. A positioning ring (4) is provided at the top center of the upper mold base (1), and the upper mold base (1) and the first upper template (2) are provided with a glue inlet channel (5) corresponding to the positioning ring (4). A glue channel (6) is provided on the upper surface of the second upper template (3), and the center of the glue channel (6) is directly below the glue inlet channel (5). Multiple pouring channels (7) penetrating the second upper template (3) are provided at the end of the glue channel (6), and the pouring channels (7) are located on the same straight line. Multiple molding cavities (8) communicating with the pouring channels (7) are provided on the lower surface of the second upper template (3). The lower mold assembly includes a lower mold base (9), with fixed blocks (10) fixedly connected to both sides of the lower mold base (9). A first lower template (11), a second lower template (12), and a third lower template (13) are fixedly connected to the upper part of the fixed blocks (10) from bottom to top. A stripping mechanism is provided on the upper surface of the lower mold base (9). Multiple spaced first rotating bearings (14) are installed inside the first lower template (11). The first rotating bearings (14) are rotatably connected to a first rotating shaft (15). The top end of the first rotating shaft (15) passes through the first lower template (11), the second lower template (12), and the third lower template (13) and is fitted with a forming fixing sleeve (16). The forming fixing sleeve (16) is engaged with the forming cavity (8) to form a forming gap.

2. The oil cap injection molding device according to claim 1, characterized in that: The top outer periphery of the molded fixing sleeve (16) is provided with a plurality of anti-rotation grooves (27) evenly distributed at equal angles, and the top surface of the molded fixing sleeve (16) is fixedly connected with a plurality of connecting posts (28) evenly distributed at equal angles.

3. The oil cap injection molding device according to claim 1, characterized in that: The unloading mechanism includes a drive motor (17), which is fixed to the lower mold base (9) by a motor bracket (18). The output end of the drive motor (17) is fixedly connected to a first sprocket (19). The first sprocket (19) is connected to a second sprocket (20) by a chain. The second sprocket (20) is fixedly connected to the lower end of a second rotating shaft (21). The second rotating shaft (21) is rotatably connected to the lower mold base (9). The top end of the second rotating shaft (21) is fixedly connected to a first gear (22). The two sides of the first gear (22) are respectively meshed with second gears (23). The second gears (23) are fixedly connected to a third rotating shaft (24). The third rotating shaft (24) is rotatably connected to a second rotating bearing (25). The second rotating bearing (25) is installed inside the first lower mold plate (11). The second gears (23) are meshed with multiple third gears (26). The third gears (26) are fixedly connected to the first rotating shaft (15).

4. The oil cap injection molding device according to claim 1, characterized in that: The top of the third lower template (13) is provided with a sliding plate mechanism, which includes sliding grooves (29) on both sides of the third lower template (13). Two forming sliding plates (30) are slidably connected between the two sliding grooves (29). The opposite ends of the two forming sliding plates (30) abut against each other and enclose to form a forming hole (31) for accommodating the top of the forming fixing sleeve (16). Push blocks (35) for pushing the forming sliding plates (30) are fixedly connected to both sides of the second upper template (3). The bottom of the push block (35) is fixedly connected to a limiting insert (36), and the third lower template (13) is provided with a limiting slot (37) that is connected to the limiting insert (36); the two sides of the forming slide plate (30) are respectively provided with inclined holes (32), and the inclined holes (32) are connected with inclined rods (33). The top of the inclined rods (33) is fixedly connected to the second upper template (3), and the third lower template (13) is provided with an oblique waist-shaped hole (34) through which the inclined rods (33) pass.

5. The oil cap injection molding device according to claim 1, characterized in that: The inner wall of the molding cavity (8) is provided with a plurality of grooves (38) that are evenly distributed at equal angles.

Images