A rapid demoulding device for a motorcycle lamp

Abstract

The present invention discloses a rapid demolding device for a motorcycle lamp, belonging to the technical field of injection molds, which includes an upper mold core and a lower mold core. An injection molding cavity is formed between the upper mold core and the lower mold core. The injection molding cavity includes a lamp body cavity formed at the center of the mold and a lamp handle cavity arranged around the outside of the lamp body cavity. A lower main groove is opened at the bottom of the lamp handle cavity, and a lower push plate is slidably and sealingly arranged in the lower main groove. The lower push plate is connected with a lower guide rod, and the lower guide rod is slidably arranged in a lower guide groove opened in the lower mold core. The lower guide rod is connected to the bottom of the lower guide groove through a first elastic support device, and a lower pushing device is also installed in the lower mold core. After the upper mold core and the lower mold core are matched, the lower pushing device can push the lower guide rod and the lower push plate to move downward. The lower pushing device disclosed by the present invention can push the lower guide rod and the lower push plate to move downward, which can make way for the lamp handle cavity, so that the lamp handle can be smoothly injection molded.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molds, and particularly relates to a rapid demolding device for motorcycle lights. Background Art

[0002] With the continuous development of injection molding technology, injection molds for motorcycle lights have gradually become the main method for manufacturing motorcycle lights. Injection molds have advantages such as high production efficiency because they can achieve automated production, greatly improving production efficiency. However, in the process of using existing injection molds, when demolding, the upper and lower sides of the vehicle lights are prone to adhesion to the mold, thus affecting the production efficiency of vehicle lights. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a rapid demolding device for motorcycle lights, which can solve the above technical problems.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A rapid demolding device for motorcycle lights disclosed by the present invention includes an upper mold core and a lower mold core. An injection molding cavity is formed between the upper mold core and the lower mold core. The injection molding cavity includes a lamp body cavity formed at the center of the mold and a lamp handle cavity surrounding the outside of the lamp body cavity; a lower main groove is opened at the bottom of the lamp handle cavity, and a lower main push plate is slidably and sealingly arranged in the lower main groove. The lower main push plate is connected with a lower guide rod, and the lower guide rod is slidably arranged in a lower guide groove opened in the lower mold core. The lower guide rod is connected to the bottom of the lower guide groove through a first elastic support device. A lower pushing device is also installed in the lower mold core; after the upper mold core and the lower mold core are matched, the lower pushing device can push the lower guide rod and the lower main push plate to move downward.

[0006] Further, the lower pushing device includes a lower auxiliary push plate, a second elastic support device, a lower piston and a linkage component. A lower channel and a lower compression channel are opened in the lower mold core. The lower piston is slidably and sealingly installed in the lower channel. A through hole for the lower guide rod to slide through is opened on the lower piston. The lower piston divides the lower channel into an upper piston cavity and a lower piston cavity; a lower auxiliary groove is opened on the upper side of the lower mold core, and the lower auxiliary push plate is slidably and sealingly arranged in the lower auxiliary groove. The lower auxiliary push plate is connected to the lower auxiliary groove through a second elastic support device. The bottom of the lower auxiliary groove is communicated with the upper piston cavity of the lower channel through the lower compression channel. A linkage component is installed between the lower guide rod and the lower piston.

[0007] Furthermore, the linkage assembly includes a tapered sleeve and a limit ring, the limit ring is located on the upper side of the lower piston and fixed in the lower channel, the tapered sleeve is made of flexible and telescopic material, the lower end of the tapered sleeve is fixedly connected to the lower piston, the upper end of the tapered sleeve forms a center hole that cooperates with the lower guide rod, and the outer wall of the lower guide rod is also provided with a ring groove that cooperates with the tapered sleeve.

[0008] Furthermore, an annular sealing ring is installed on the inner side of the central hole.

[0009] Furthermore, an upper main groove is provided on the top of the lamp handle cavity, and an upper main push plate is provided in the upper main groove for sliding sealing. The upper main push plate is connected to an upper guide rod, and the upper guide rod is slidably provided in the upper guide groove provided in the upper mold core. The upper guide rod is connected to the bottom of the upper guide groove through a third elastic support device, and an upper pushing device is also installed in the upper mold core; after the upper mold core and the lower mold core are matched, the upper pushing device can push the upper guide rod and the upper main push plate to move upward.

[0010] Furthermore, the upper pushing device includes an upper auxiliary push plate, a fourth elastic support device, and an upper piston. An upper channel and an upper compression channel are provided in the upper mold core. The upper piston sliding seal is installed in the upper channel. The upper piston is connected to the upper guide rod. The upper piston divides the upper channel into an upper piston chamber and a lower piston chamber. An upper auxiliary groove is provided on the lower side of the upper mold core. The upper auxiliary push plate sliding seal is arranged in the upper auxiliary groove. The upper auxiliary push plate is connected to the upper auxiliary groove through the fourth elastic support device. The bottom of the upper auxiliary groove is connected to the lower piston chamber of the upper channel through the upper compression channel.

[0011] Furthermore, the upper die core and the lower die core are installed in the upper pressing plate and the lower pressing plate respectively, and cooling channels are installed in the upper pressing plate and the lower pressing plate at the same time.

[0012] The beneficial effects of the present invention are:

[0013] The present invention discloses a rapid demolding device for a motorcycle lamp. A lower main push plate is arranged at the bottom of the lamp handle cavity. When the joint surfaces of the upper mold core and the lower mold core are matched, the lower main push plate cooperates with the upper mechanism to make way for the mold cavity of the vehicle lamp. The lower pushing device can push the lower guide rod and the lower main push plate to move downward, making way for the lamp handle cavity, so that the lamp handle can be smoothly injection-molded.

[0014] In the rapid demoulding device disclosed in the present invention, after the upper mold core and the lower mold core are separated, the lower push plate can be quickly displaced upward under the action of the first elastic support device, thereby pushing the lamp handle that has been injection-molded, so that the headlight can be quickly separated from the lower mold core, achieving the effect of rapid demoulding, reducing the adhesion between the mold and the headlight, and thus greatly improving the production efficiency of motorcycle lights.

[0015] Other advantages, objects, and features of the present invention will be set forth in the following description, and to some extent will be obvious to those skilled in the art or can be taught from the practice of the present invention. The objects and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the objects, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0017] Figure 1 Structural schematic diagram of the demoulding device of the present invention;

[0018] Figure 2 Structural schematic diagram of the upper mold core and the lower mold core of the present invention;

[0019] Figure 3 is Figure 2 Enlarged view at A;

[0020] Figure 4 Structural schematic diagram of the conical sleeve.

[0021] The reference numerals in the drawings are as follows: upper mold core 1, lower mold core 2, lamp body cavity 3, lamp handle cavity 4, lower main groove 5, lower main push plate 6, lower guide rod 7, lower guide groove 8, first elastic support device 9, lower auxiliary push plate 10, second elastic support device 11, lower piston 12, lower channel 13, lower compression channel 14, upper piston cavity 15, lower piston cavity 16, lower auxiliary groove 17, conical sleeve 18, limit ring 19, ring groove 20, sealing ring 21, upper main groove 22, upper main push plate 23, upper guide rod 24, upper guide groove 25, upper auxiliary push plate 26, fourth elastic support device 27, upper piston 28, upper channel 29, upper compression channel 30, upper auxiliary groove 3, upper pressure plate 32, lower pressure plate 33, third elastic support device 34. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] As Figures 1 to 4 shown, a rapid demoulding device for a motorcycle lamp disclosed by the present invention includes an upper mold core 1 and a lower mold core 2. The upper mold core 1 is located above the lower mold core 2, and the joint surface between the two is a plane. An injection molding cavity is formed between the upper mold core 1 and the lower mold core 2. The upper mold core 1 and the lower mold core 2 are respectively installed in the upper pressure plate 32 and the lower pressure plate 33, and cooling channels are installed in both the upper pressure plate 32 and the lower pressure plate 33. By providing the cooling channels, the cooling of the motorcycle lamp after injection molding can be accelerated, thereby playing a role in accelerating demoulding.

[0023] In an embodiment of the present invention, the injection molding cavity includes a lamp body cavity 3 formed at the center of the mold and a lamp handle cavity 4 disposed around the outside of the lamp body cavity 3. The part injected into the lamp body cavity 3 forms a lamp body, which is an arc-shaped cover structure. The part injected into the lamp handle cavity 4 forms a lamp handle. The lamp handle extends outward from the outer edge of the cover body and is parallel to the horizontal plane. The lamp handle and the lamp body are integrally formed, which is convenient for demolding.

[0024] Specifically, a lower main groove 5 is formed at the bottom of the lamp handle cavity 4. The cross-section of the lower main groove 5 is circular or square. A lower push plate 6 is slidably and sealed in the lower main groove 5. A sealing structure is provided between the lower push plate 6 and the lower main groove 5 to play a sealing role when the lower push plate 6 slides up and down.

[0025] A lower guide rod 7 is connected to the lower end of the lower push plate 6. The cross-section of the lower guide rod 7 is circular. The lower guide rod 7 is slidably disposed in a lower guide groove 8 formed in the lower mold core 2. The lower guide rod 7 is connected to the bottom of the lower guide groove 8 through a first elastic support device 9. The first elastic support device 9 uses a spring. A lower pushing device is also installed in the lower mold core 2. After the upper mold core 1 and the lower mold core 2 are fitted, the upper mold core 1 can trigger the lower pushing device, and the lower pushing device can push the lower guide rod 7 and the lower push plate 6 downward. Thus, the lower push plate 6 is displaced downward by a certain distance, so as to make room for the lamp handle cavity 4 and keep the bottom plane of the lamp handle cavity 4 horizontal, so that the lamp handle can be smoothly injected.

[0026] In the device disclosed in the present invention, after the injection molding is completed and the upper mold core 1 and the lower mold core 2 are separated, the lower push plate can quickly move upward under the action of the first elastic support device 9, so as to push the already injection-molded lamp handle, so that the motorcycle lamp can quickly break away from the lower mold core 2, playing a role in rapid demolding, reducing the adhesion between the mold and the motorcycle lamp, and thus greatly improving the production efficiency of the motorcycle lamp.

[0027] In some other embodiments, the lower pushing device can adopt a hydraulic cylinder. The switch of the hydraulic cylinder is arranged between the upper mold core 1 and the lower mold core 2 to play a triggering role. The output end of the hydraulic cylinder is connected to the lower guide rod 7 to drive the lower guide rod 7 to move downward. However, the hydraulic cylinder is not very suitable for the working environment in the mold. When installed in the mold core, it is easy to cause the overall installation structure to be relatively complex and the control to be unstable during operation.

[0028] In this embodiment, in order to provide a more stable control structure, the lower pushing device disclosed in the present invention includes a lower auxiliary push plate 10, a second elastic support device 11, a lower piston 12 and a linkage component. The lower auxiliary push plate 10 is located on one side of the lower push plate 6. A lower channel 13 and a lower compression channel 14 are formed in the lower mold core 2. The lower channel 13 is a straight channel. The lower piston 12 is slidably and sealed in the lower channel 13. The lower piston 12 can displace along the axial direction of the lower channel 13 to compress two spaces.

[0029] Among them, a through hole is provided on the lower piston 12 for the lower guide rod 7 to slide through, and the lower piston 12 divides the lower channel 13 into an upper piston chamber 15 and a lower piston chamber 16; a lower auxiliary groove 17 is provided on the upper side of the lower mold core 2, and the lower auxiliary push plate 10 is slidingly sealed in the lower auxiliary groove 17, and the lower auxiliary push plate 10 is connected to the lower auxiliary groove 17 through a second elastic support device 11, and the bottom of the lower auxiliary groove 17 is connected to the upper piston chamber 15 of the lower channel 13 through a lower compression channel 14, and a linkage assembly is installed between the lower guide rod 7 and the lower piston 12, and the linkage assembly is used to link the lower guide rod 7 and the lower piston 12. When the lower auxiliary push plate 10 is compressed downward, the linkage assembly can act on the lower guide rod 7, so that the lower guide rod 7 is displaced downward by a certain distance, thereby avoiding the lamp handle cavity 4.

[0030] In this embodiment, the linkage assembly includes a tapered sleeve 18 and a retaining ring 19. The tapered sleeve 18 is a tapered structure that is smaller at the top and larger at the bottom. The retaining ring 19 is located above the lower piston 12 and fixed within the lower passage 13, acting as a position limiter for the lower piston 12. The tapered sleeve 18 is made of a flexible, elastic material and can deform to a certain extent under the influence of air pressure. The lower end of the tapered sleeve 18 is fixedly connected to the lower piston 12. The upper end of the tapered sleeve 18 forms a central hole that mates with the lower guide rod 7. The outer wall of the lower guide rod 7 also includes an annular groove 20 that mates with the tapered sleeve 18.

[0031] After the upper die core 1 and the lower die core 2 are separated, the lower guide rod 7 moves upward under the action of the first elastic support device 9, and the lower guide rod 7 drives the conical sleeve 18 to move upward until the conical sleeve 18 is limited by the limit ring 19. Since the pressure on the upper side of the conical sleeve 18 is released, the conical sleeve 18 is separated from the lower guide rod 7 at this time, and the lower guide rod 7 continues to move upward to cope with the next compression cycle.

[0032] In this embodiment, an annular sealing ring 21 is installed on the inner side of the central hole, which can be more conducive to the sealing between the tapered sleeve 18 and the lower guide rod 7.

[0033] In this embodiment, similar to the lower main push plate 6, the present invention provides an upper main groove 22 at the top of the lamp handle cavity 4, and an upper main push plate 23 is slidingly and sealedly arranged in the upper main groove 22. The upper main push plate 23 is connected to an upper guide rod 24, and the upper guide rod 24 is slidingly arranged in an upper guide groove 25 opened in the upper mold core 1. The upper guide rod 24 is connected to the bottom of the upper guide groove 25 through a third elastic support device 34, and an upper pushing device is also installed in the upper mold core 1; after the upper mold core 1 and the lower mold core 2 are matched, the upper pushing device can push the upper guide rod 24 and the upper main push plate 23 to move upward.

[0034] In this embodiment, similar to the lower pushing device part, the upper pushing device includes an upper auxiliary push plate 26, a fourth elastic support device 27, and an upper piston 28. An upper channel 29 and an upper compression channel 30 are formed in the upper mold core 1. The upper piston 28 is slidably and sealingly installed in the upper channel 29. The upper piston 28 is connected to the upper guide rod 24. The upper piston 28 divides the upper channel 29 into an upper piston chamber 15 and a lower piston chamber 16. An upper auxiliary groove 31 is formed on the lower side of the upper mold core 1. The upper auxiliary push plate 26 is slidably and sealingly arranged in the upper auxiliary groove 31. The upper auxiliary push plate 26 is connected to the upper auxiliary groove 31 through the fourth elastic support device 27. The bottom of the upper auxiliary groove 31 is communicated with the lower piston chamber 16 of the upper channel 29 through the upper compression channel 30.

[0035] The working process of the demolding device of the present invention: When the upper mold core 1 and the lower mold core 2 are engaged, the lower main push plate 6 and the upper main push plate 23 come into contact and move backward under the mutual pushing force, realizing the movement in the first stage of the push plate. After the upper mold core 1 and the lower mold core 2 are engaged, the lower auxiliary push plate 10 and the upper auxiliary push plate 26 come into contact. Among them, the lower auxiliary push plate 10 compresses the air or hydraulic oil in the lower compression channel 14, making it enter the upper piston chamber 15 of the lower channel 13. The air pressure or hydraulic pressure acts on the tapered sleeve 18, causing the central hole part of the tapered sleeve 18 to act on the annular groove 20, and pushing the lower piston 12 to move downward together with the lower guide rod 7. The upper auxiliary push plate 26 compresses the air or hydraulic oil in the upper compression channel 30, making it enter the lower piston chamber 16 of the upper channel 29, and pushing the upper guide rod 24 to move upward, thus avoiding the lamp handle cavity 4. When demolding is required, the upper mold core 1 and the lower mold core 2 are separated. The lower main push plate 6 and the upper main push plate 23 can respectively push the lamp handle of the vehicle lamp outward under the action of the first elastic support device 9 and the fourth elastic support device 27, so as to achieve rapid demolding.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A quick demoulding device for a motorcycle lamp, comprising an upper mold core and a lower mold core, wherein an injection molding cavity is formed between the upper mold core and the lower mold core, characterized in that: The cam is secured to the bottom of the mold with a secure grip on the underside of the mold, and the cam is secured to the bottom of the mold with a secure grip on the underside of the mold. The cam is secured to the bottom of the mold with a secure grip on the underside of the mold. There are a lower channel and a lower compression channel, the lower piston sliding seal is installed in the lower channel, the lower piston is provided with a through hole for the lower guide rod to slide through, and the lower piston divides the lower channel into an upper piston chamber and a lower piston chamber; a lower auxiliary groove is provided on the upper side of the lower mold core, the lower auxiliary push plate sliding seal is set in the lower auxiliary groove, the lower auxiliary push plate is connected to the lower auxiliary groove through a second elastic support device, the bottom of the lower auxiliary groove is connected to the upper piston chamber of the lower channel through the lower compression channel, and a linkage assembly is installed between the lower guide rod and the lower piston; the linkage assembly includes a tapered sleeve and a limit ring, the limit ring is located on the upper side of the lower piston and fixed in the lower channel, and the tapered sleeve adopts The cam is made of a flexible and telescopic material, and the lower end of the tapered sleeve is fixedly connected to the lower piston, and the upper end of the tapered sleeve forms a center hole that cooperates with the lower guide rod, and the outer wall of the lower guide rod is simultaneously provided with a ring groove that cooperates with the tapered sleeve; an annular sealing ring is installed on the inner side of the center hole; an upper main groove is provided at the top of the lamp handle cavity, and an upper main push plate is provided in the sliding seal of the upper main groove, and the upper main push plate is connected to the upper guide rod, and the upper guide rod is slidably set in the upper guide groove opened in the upper mold core, and the upper guide rod is connected to the bottom of the upper guide groove by a third elastic support device, and an upper pushing device is installed in the upper mold core at the same time; after the upper mold core and the lower mold core cooperate, the upper pushing device can push The movable upper guide rod and the upper main push plate move upward; the upper pushing device includes an upper auxiliary push plate, a fourth elastic support device, and an upper piston; an upper channel and an upper compression channel are provided in the upper mold core, and the upper piston sliding seal is installed in the upper channel, and the upper piston is connected to the upper guide rod, and the upper piston divides the upper channel into an upper piston chamber and a lower piston chamber; an upper auxiliary groove is provided on the lower side of the upper mold core, and the upper auxiliary push plate sliding seal is arranged in the upper auxiliary groove, and the upper auxiliary push plate is connected to the upper auxiliary groove through the fourth elastic support device, and the bottom of the upper auxiliary groove is connected to the lower piston chamber of the upper channel through the upper compression channel. After the upper mold core and the lower mold core are matched, the lower auxiliary push plate and the upper auxiliary push plate are in contact.

2. The rapid demoulding device for a motorcycle lamp according to claim 1, characterized in that: The upper die core and the lower die core are respectively installed in the upper pressing plate and the lower pressing plate, and cooling channels are installed in the upper pressing plate and the lower pressing plate.

Images