High-gloss paint-spraying-free motorcycle head cover injection mold

Abstract

The utility model provides a highlight paint-spraying-free motorcycle hood injection mold, the top end of a lower mold body is provided with a hood injection mold core I which is integrally formed, the two side parts of the hood injection mold core I are respectively provided with a mold core II connecting notch and a mold core II connecting bulge, and the surface of the hood injection mold core I is provided with a plurality of insert channels; the top end of the first hood injection mold core is provided with three hood mounting hole injection positions, the bottom end of the upper mold body is provided with a second hood injection mold core which is integrally formed, and the two sides of the second hood injection mold core are provided with a first mold core connecting convex face and a first mold core connecting concave face correspondingly. The first mold core connecting convex face and the first mold core connecting concave face are connected with the second mold core connecting notch and the second mold core connecting protrusion in a matched mode correspondingly. The utility model has favorable surface smoothness, enhances the brightness of the surface of the hood, prevents the highlight effect of the hood from being influenced by rough and uneven raised residual materials attached to the outer surface of the formed hood, does not need secondary paint spraying operation, and greatly ensures the production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and relates to a high-gloss, paint-free motorcycle head cover injection mold. Background Technology

[0002] The motorcycle head cover is installed at the front of the motorcycle. There are two mounting posts at the rear of the motorcycle head cover, which are screwed onto the connecting plate on the motorcycle. The motorcycle head cover is made of plastic injection molding and is manufactured using injection molds.

[0003] In the prior art, such as the one-piece molding mechanism for electric vehicle headgear mold disclosed in patent number CN201721904723.X, the headgear cavity concave surface and the rearview mirror cable outlet cavity concave surface are formed on the cavity, and the headgear core convex surface and the rearview mirror cable outlet core convex surface are formed on the core. The headgear cavity concave surface and the headgear core convex surface cooperate to form the headgear panel mold cavity, and the rearview mirror cable outlet cavity concave surface and the rearview mirror cable outlet core convex surface cooperate to form the rearview mirror cable outlet panel mold cavity. The headgear panel mold cavity and the rearview mirror cable outlet panel mold cavity are connected by an arc surface to form an integrated headgear mold cavity, and the electric vehicle headgear is injection molded in the headgear mold cavity.

[0004] The disadvantage of the above-disclosed molding mechanism is that it involves creating concave surfaces for the headgear cavity and rearview mirror cable outlet holes on the mold cavity, and convex surfaces for the headgear core and rearview mirror cable outlet holes on the core. The concave surfaces of the headgear cavity and the convex surfaces of the headgear core cooperate to form the headgear panel mold cavity. This operation facilitates the rapid production of headgears, but the surface precision of the headgear product is not high, the color gloss is insufficient, and a second spraying is required, which is time-consuming. Therefore, we have designed a high-gloss, paint-free motorcycle headgear injection mold. Summary of the Invention

[0005] The purpose of this invention is to provide a high-gloss, paint-free motorcycle headgear injection mold to solve the problems mentioned in the background art.

[0006] The purpose of this utility model can be achieved through the following technical solution: a high-gloss, paint-free motorcycle headgear injection mold, including an upper mold body, a lower mold body, a mold pad, a mold top plate, and multiple headgear inserts. Two mold support seats are installed on the top of the mold pad. The mold pad is connected to the lower mold body through the two mold support seats. Guide post mounting holes are provided at the four corners of the upper mold body. Guide posts connected to the lower mold body are installed inside the four guide post mounting holes, and the upper mold body and the lower mold body are connected by the guide posts. The top of the upper mold body is connected to the mold top plate by bolts. A hot sprue plate is provided at the center of the top of the mold top plate, and a runner is provided at the bottom of the hot sprue plate.

[0007] The lower mold body has an integrally formed head cover injection mold core one at its top. The two sides of the head cover injection mold core one are respectively provided with a mold core two connecting recess and a mold core two connecting protrusion. The surface of the head cover injection mold core one is provided with multiple insert channels. The top of the head cover injection mold core one is provided with three head cover mounting hole injection positions. The upper mold body has an integrally formed head cover injection mold core two at its bottom. The two sides of the head cover injection mold core two are respectively provided with a mold core one connecting protrusion and a mold core one connecting concave surface. The mold core one connecting protrusion and mold core one connecting concave surface are respectively connected to the mold core two connecting recess and mold core two connecting protrusion.

[0008] The center of the second head cover injection mold core is provided with a sprue that communicates with the runner, and the sprue corresponds to the cavity formed by the first head cover injection mold core and the second head cover injection mold core.

[0009] The aforementioned high-gloss, paint-free motorcycle headgear injection mold also includes four lifting rings. The bolts of these four lifting rings are respectively connected to the screw holes on both sides of the upper mold body and the screw holes on both sides of the lower mold body. This design aims to achieve the lifting and separation of the upper mold body and the lower mold body using the two lifting rings on the upper mold body and the lower mold body, enabling hydraulic drive for mold opening. This facilitates rapid mold opening, eliminating the need for manual labor, improving convenience, and reducing labor intensity.

[0010] In the aforementioned high-gloss, paint-free motorcycle headgear injection mold, positioning blocks are provided at the notches around the upper mold body, and the four positioning blocks correspond to the notches around the lower mold body. This design ensures good precision in the assembly of the upper and lower mold bodies, guaranteeing the integrity of the cavities formed by the headgear injection mold core one and headgear injection mold core two, preventing the formation of burrs or flash.

[0011] In the aforementioned high-gloss, paint-free motorcycle headgear injection mold, an insert base is provided at the center of the top of the mold base plate. The bottoms of multiple headgear inserts are engaged with the insert base, and the tops of multiple headgear inserts are connected to corresponding insert channels. The purpose of this design is to connect multiple headgear inserts to the headgear injection mold core, ensuring a perfect fit between the top surface of the headgear inserts and the surface of the headgear injection mold core, guaranteeing good gloss, and reducing the appearance of poor lines caused by transitions between surfaces.

[0012] In the aforementioned high-gloss, paint-free motorcycle headgear injection mold, a hose insertion sleeve connected to the mold top plate is provided at the top of the hot runner plate. A guide connecting plate is provided at the notch of the hose insertion sleeve, and a handle strip is slidably installed in the groove in the middle of the guide connecting plate. A nozzle cleaning sleeve is provided at the end of the handle strip, and the nozzle cleaning sleeve is located inside the hose insertion sleeve. The purpose of this design is to guide the hose part of the injection molding machine so that the hose can accurately align with the runner opening of the hot runner plate. At the same time, it allows for manual cleaning of the nozzle part of the hose after pouring, reducing the dripping of molten material from the nozzle part.

[0013] In the aforementioned high-gloss, paint-free motorcycle headgear injection mold, three perforated ejector pins are provided in the center of the headgear injection mold core two. These three perforated ejector pins are respectively connected to the headgear mounting holes. This design facilitates the integrated molding of the headgear mounting holes, ensuring the headgear's secure installation and overall structural strength.

[0014] Compared with existing technologies, the advantages of this utility model of a high-gloss, paint-free motorcycle headgear injection mold are as follows: A one-piece headgear injection mold core is provided at the top of the lower mold body. The two sides of the headgear injection mold core core are respectively provided with a connecting recess and a connecting protrusion for the second mold core. A one-piece headgear injection mold core two is provided at the bottom of the upper mold body. The two sides of the headgear injection mold core two are respectively provided with a connecting protrusion and a connecting concave surface for the first mold core. The connecting protrusion and concave surface of the first mold core are respectively connected to the connecting recess and the connecting protrusion of the second mold core, resulting in a headgear cavity formed by the headgear injection mold core one and the headgear injection mold core two having excellent surface smoothness. This increases the brightness of the headgear surface, prevents rough and uneven surfaces from being affected by protruding residual material after molding, thus maintaining its high-gloss effect. Furthermore, no secondary painting is required, greatly ensuring production efficiency.

[0015] By setting a hose insertion sleeve at the top of the hot sprue plate and connecting it to the mold top plate, and setting a guide connecting plate at the notch of the hose insertion sleeve, a handle strip is slidably installed in the groove in the middle of the guide connecting plate, and a nozzle cleaning sleeve is set at the end of the handle strip and is located in the inner channel of the hose insertion sleeve, the hose part of the injection molding machine can be guided so that the hose can be accurately aligned with the runner of the hot sprue plate. At the same time, the nozzle part of the hose can be cleaned after pouring, and the dripping of molten material from the nozzle part is reduced by manual cleaning. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the injection mold for a high-gloss, paint-free motorcycle headgear, which is based on this utility model.

[0017] Figure 2This is a schematic diagram of the three-dimensional structure of the upper mold of the high-gloss, paint-free motorcycle headgear injection mold of this utility model.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower mold of the high-gloss, paint-free motorcycle headgear injection mold of this utility model.

[0019] Figure 4 This is a top view schematic diagram of the upper mold body valve of the injection mold for a high-gloss, paint-free motorcycle headgear according to this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the rubber tube insertion sleeve of the injection mold for the high-gloss, paint-free motorcycle headgear of this utility model.

[0021] In the diagram, 1. Upper mold body; 2. Lower mold body; 3. Mold backing plate; 4. Mold top plate; 5. Insert base; 6. Head cover insert; 7. Mold support base; 8. Lifting ring; 9. Hot sprue plate; 10. Positioning block; 11. Head cover injection mold core one; 12. Insert channel; 13. Mold core two connecting recess; 14. Mold core two connecting protrusion; 15. Head cover mounting hole injection position; 16. Head cover injection mold core two; 17. Mold core one connecting convex surface; 18. Mold core one connecting concave surface; 19. Guide post mounting hole; 20. Sprue; 21. Ejector post with hole; 22. Hose insertion sleeve; 23. Guide connecting plate; 24. Nozzle cleaning sleeve; 25. Handle strip; 26. Runner. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model relates to a high-gloss, paint-free motorcycle headgear injection mold.

[0024] The main body of the injection mold includes an upper mold body 1, a lower mold body 2, a mold base plate 3, a mold top plate 4, and multiple head cover inserts 6. Two mold support seats 7 are installed on the top of the mold base plate 3. The mold base plate 3 is connected to the lower mold body 2 through the two mold support seats 7. Guide post mounting holes 19 are opened at the four corners of the upper mold body 1. Guide posts connected to the lower mold body 2 are installed inside the four guide post mounting holes 19, and the upper mold body 1 and the lower mold body 2 are connected by the guide posts. The top of the upper mold body 1 is connected to the mold top plate 4 by bolts.

[0025] Example 1: An integrally formed head cover injection mold core 11 is provided at the top of the lower mold body 2. The two sides of the head cover injection mold core 11 are respectively provided with a mold core 2 connecting recess 13 and a mold core 2 connecting protrusion 14. The surface of the head cover injection mold core 11 is provided with multiple insert channels 12. The top of the head cover injection mold core 11 is provided with three head cover mounting hole injection positions 15. An integrally formed head cover injection mold core 2 16 is provided at the bottom of the upper mold body 1. The two sides of the head cover injection mold core 2 16 are respectively provided with a mold core 1 connecting protrusion 17 and a mold core 1 connecting concave surface 18. The mold core 1 connecting protrusion 17 and mold core 1 connecting concave surface 18 are respectively connected to the mold core 2 connecting recess 13 and the mold core 2 connecting protrusion 14.

[0026] In addition to the first embodiment, in order to ensure that the transition line between the hood surfaces has a good streamline and to reduce the roughness of the protruding residual material, an insert base 5 is provided in the middle of the top of the mold pad 3. The bottom of the multiple hood inserts 6 are all engaged with the insert base 5, and the top of the multiple hood inserts 6 are connected to the corresponding insert channel 12.

[0027] This solution ensures that the head cover cavity formed by head cover injection mold core 11 and head cover injection mold core 2 16 has good surface smoothness, increases the brightness of the head cover surface, prevents the rough and uneven surface of the outer surface of the molded head cover from being affected by protruding residual material, and eliminates the need for secondary painting, thus greatly ensuring production efficiency.

[0028] Example 2: In order to guide the hose of the injection molding machine so that the hose can be accurately aligned with the runner 26 of the hot sprue plate 9, and to clean the nozzle of the hose after casting, manual cleaning is used to reduce the dripping of molten material from the nozzle. The top of the hot sprue plate 9 is provided with a hose insertion sleeve 22 that is connected to the mold top plate 4. A guide connecting plate 23 is provided at the notch of the hose insertion sleeve 22. A handle strip 25 is slidably installed in the groove in the middle of the guide connecting plate 23. A nozzle cleaning sleeve 24 is provided at the end of the handle strip 25 and is located inside the hose insertion sleeve 22.

[0029] In the second embodiment, a hot sprue plate 9 is further provided at the center of the top of the mold top plate 4, and a runner 26 is provided at the bottom of the hot sprue plate 9. A sprue 20 communicating with the runner 26 is provided at the center of the head cover injection mold core 16. The sprue 20 corresponds to the cavity formed by the head cover injection mold core 11 and the head cover injection mold core 16.

[0030] like Figure 1As shown in this embodiment, in order to facilitate the use of hydraulic drive for mold opening, and to facilitate the quick opening of the upper mold body 1 and the lower mold body 2 without the need for manual mold opening, thereby improving convenience and reducing labor intensity, it also includes four lifting ring parts 8. The bolts of the four lifting ring parts 8 are respectively connected to the screw holes on both sides of the upper mold body 1 and the screw holes on both sides of the lower mold body 2.

[0031] like Figure 1 As shown in this embodiment, in order to prevent the cavity formed by the head cover injection mold core 11 and the head cover injection mold core 2 16 from being intact and without producing flash or burrs, positioning blocks 10 are provided at the notches around the upper mold body 1, and the four positioning blocks 10 correspond to the notches around the lower mold body 2.

[0032] like Figure 4 As shown in this embodiment, in order to facilitate the installation holes of the integrated molded headgear part, ensure the firmness of the headgear installation and the overall structural strength of the headgear, three perforated top posts 21 are provided in the middle of the headgear injection mold core 2 16, and the three perforated top posts 21 are respectively connected to the headgear mounting hole injection position 15.

[0033] In use: The lower mold body 2 is connected to the upper mold body 1 and the lower mold body 2 by means of guide pillars. Multiple headgear inserts 6 are connected to the corresponding insert channels 12. The top of the upper mold body 1 is connected to the mold top plate 4 by bolts. The injection molding machine's hose is aligned with the hose insertion sleeve 22 and extended to the runner 26. Molten material is injected into the headgear cavity formed by headgear injection mold core 11 and headgear injection mold core 26. After cooling and molding, the headgear is obtained. This solution, through the cooperation of headgear injection mold core 11 and headgear injection mold core 26 and the cooperation of multiple headgear inserts 6 with insert channels 12, makes the headgear cavity formed by headgear injection mold core 11 and headgear injection mold core 26 have good surface smoothness, increases the brightness of the headgear surface, prevents the outer surface of the molded headgear from being rough and uneven due to protruding residual material, and does not require secondary painting, thus greatly ensuring production efficiency.

[0034] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-gloss, paint-free motorcycle headgear injection mold, comprising an upper mold body (1), a lower mold body (2), a mold base plate (3), a mold top plate (4), and multiple headgear inserts (6), wherein two mold support seats (7) are installed on the top of the mold base plate (3), and the mold base plate (3) is connected to the lower mold body (2) through the two mold support seats (7), and guide post mounting holes (19) are provided at the four corners of the upper mold body (1), and guide posts connected to the lower mold body (2) are installed inside the four guide post mounting holes (19), and the upper mold body (1) and the lower mold body (2) are connected to each other through the guide posts, and the top of the upper mold body (1) is connected to the mold top plate (4) by bolts, and a hot sprue plate (9) is provided at the center of the top of the mold top plate (4), and a runner (26) is provided at the bottom of the hot sprue plate (9), characterized in that ； The top of the lower mold body (2) is provided with an integrally formed head cover injection mold core one (11). The two sides of the head cover injection mold core one (11) are respectively provided with a mold core two connecting recess (13) and a mold core two connecting protrusion (14). The surface of the head cover injection mold core one (11) is provided with multiple insert channels (12). The top of the head cover injection mold core one (11) is provided with three head cover mounting hole injection positions (15). The bottom of the upper mold body (1) is provided with an integrally formed head cover injection mold core two (16). The two sides of the head cover injection mold core two (16) are respectively provided with a mold core one connecting protrusion (17) and a mold core one connecting concave surface (18). The mold core one connecting protrusion (17) and the mold core one connecting concave surface (18) are respectively connected to the mold core two connecting recess (13) and the mold core two connecting protrusion (14). The center of the second injection mold core (16) of the head cover is provided with a sprue (20) that communicates with the runner (26). The sprue (20) corresponds to the cavity formed by the first injection mold core (11) of the head cover and the second injection mold core (16) of the head cover.

2. The high-gloss, paint-free motorcycle headgear injection mold according to claim 1, characterized in that, It also includes four lifting rings (8), the bolts of which are respectively connected to the screw holes on both sides of the upper mold body (1) and the screw holes on both sides of the lower mold body (2).

3. The high-gloss, paint-free motorcycle headgear injection mold according to claim 1, characterized in that, Positioning blocks (10) are provided at the notches around the upper mold body (1), and the four positioning blocks (10) correspond to the notches around the lower mold body (2).

4. The high-gloss, paint-free motorcycle headgear injection mold according to claim 1, characterized in that, An insert base (5) is provided at the center of the top of the mold pad (3). The bottom of the multiple headgear inserts (6) are engaged with the insert base (5), and the top of the multiple headgear inserts (6) are connected to the corresponding insert channel (12).

5. The high-gloss, paint-free motorcycle headgear injection mold according to claim 1, characterized in that, The top of the hot sprue plate (9) is provided with a hose insertion sleeve (22) that is connected to the mold top plate (4). A guide connecting plate (23) is provided at the notch of the hose insertion sleeve (22). A handle strip (25) is slidably installed in the groove in the middle of the guide connecting plate (23). A nozzle cleaning sleeve (24) is provided at the tail end of the handle strip (25) and the nozzle cleaning sleeve (24) is located in the inner channel of the hose insertion sleeve (22).

6. The high-gloss, paint-free motorcycle headgear injection mold according to claim 1, characterized in that, Three perforated top posts (21) are provided in the middle of the head cover injection mold core two (16), and the three perforated top posts (21) are respectively connected to the head cover mounting hole injection position (15).

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