Pushing pipe and ejector rod combined type synchronous demolding mechanism for headlamp reflection bowl

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a push pipe and push rod combined type synchronous demolding mechanism for a headlamp reflection bowl. The utility model discloses a headlamp reflective bowl forming die which comprises a headlamp reflective bowl forming lower die and a headlamp reflective bowl forming upper die. According to the utility model, the headlamp reflective bowl molding lower mold and the headlamp reflective bowl molding upper mold are close to each other, so that the reflective bowl molding insert is embedded into the molding concave cavity and is attached to the mold closing molding seat and the push tube type auxiliary molding slide block demolding assembly to form a complete cavity, and a molten material is injected into the cavity through the injection molding part; the mold is opened after injection molding is completed, the push pipe type auxiliary forming sliding block demolding assembly is moved towards the side far away from the plastic part, demolding spaces on the two sides of the plastic part are opened, and then the formed plastic part is directly ejected and demolded through the ejector rod demolding part, step-by-step demolding is adopted, and the two sides of the demolding-type plastic part have large demolding operation spaces; and it is ensured that the two sides of the plastic part cannot collide with the mold plate in the ejection process, and the demolding fluency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a synchronous demoulding mechanism for a headlamp reflector bowl push tube and a push rod combined type. Background Art

[0002] Automobile headlights generally consist of a reflector, a light distribution lens, a bulb, a headlight housing, and a lamp holder. The reflector can converge the light emitted by the bulb into parallel light to emit it outward, thereby increasing the brightness of the light. The reflector is mainly made of plastic material and is generally injection molded using an injection mold. After the injection molding is completed, the existing reflector mold is generally directly ejected from the mold part and the template through a push rod. During ejection, due to the narrow demolding space between the two sides of the plastic part and the template, it is difficult to effectively demold both sides. Forcibly ejecting or pulling out the plastic part can easily cause a collision between the plastic part and the template, resulting in poor demolding smoothness. Therefore, it is urgently necessary to design a headlight reflector push tube and push rod combined synchronous demolding mechanism that can overcome the above defects.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses an injection mold for a headlight reflector shell [application number: 202021796645.8], which includes an upper mold and a lower mold arranged relative to the upper mold. The lower surface of the upper mold is provided with a first parting surface, and the first parting surface is provided with an inward-concave cavity, and a plurality of punches are provided in the cavity. The upper surface of the lower mold is provided with a second parting surface, and the second parting surface is provided with a boss matching the cavity, and the boss is concave with a plurality of mold cavities that match the punches in number and structure; wherein the cavity and the boss are embedded to form a first molding cavity, and the punch is embedded with the mold cavity to form a second molding cavity. The first molding cavity is used to mold the headlight reflector shell, and the second molding cavity is used to mold a plurality of reflective bowls for assembling lamp bodies on the headlight reflector shell. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A headlight reflector bowl push tube and push rod combined synchronous demolding mechanism comprises a headlight reflector bowl molding lower mold and a headlight reflector bowl molding upper mold, an injection molded part is provided above the headlight reflector bowl molding upper mold, a reflector bowl molding insert is provided at the bottom of the headlight reflector bowl molding upper mold, a clamping molding seat is provided in the headlight reflector bowl molding lower mold, a push tube type auxiliary molding slider demolding assembly that slides with the clamping molding seat is provided in the clamping molding seat, the push tube type auxiliary molding slider demolding assembly and the clamping molding seat are combined to form a molding cavity, the molding cavity corresponds to the position of the reflector bowl molding insert and the shape is matched, a push rod demolding piece is provided below the headlight reflector bowl molding lower mold, and the push rod demolding piece and the push tube type auxiliary molding slider demolding assembly are staggered.

[0007] In the above-mentioned headlamp reflector bowl push tube and push rod combined synchronous demolding mechanism, the push tube type auxiliary molding slider demolding assembly includes two auxiliary molding side sliders arranged in the mold forming seat, and the outer side of the auxiliary molding side slider is provided with an oblique push tube and an oblique connecting rod, and the center line of the oblique push tube coincides with the center line of the oblique connecting rod.

[0008] In the above-mentioned synchronous demoulding mechanism of the headlamp reflector bowl push tube and ejector rod combination, a position-limiting anti-slipping piece is provided in the headlamp reflector bowl forming lower die, and the auxiliary forming side slider is slidably matched with the position-limiting anti-slipping piece.

[0009] In the above-mentioned headlamp reflector bowl push tube and push rod combined synchronous demolding mechanism, the position limiting anti-slip component includes a position limiting anti-slip slide rail arranged in the headlamp reflector bowl molding lower mold, and the auxiliary molding side slider is slidably matched with the position limiting anti-slip slide rail.

[0010] In the above-mentioned headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism, the molding cavity has reflector bowl molding lines.

[0011] In the above-mentioned headlamp reflector bowl push tube and ejector rod combined synchronous demolding mechanism, the ejector rod demolding parts include a plurality of middle straight ejector rods and side straight ejector rods arranged below the headlamp reflector bowl molding lower mold, and the side straight ejector rods correspond to the position of the auxiliary molding side slider.

[0012] In the above-mentioned headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism, an ejector rod fixing plate is provided below the headlamp reflector bowl forming lower die, and the middle straight ejector rod and the side straight ejector rods are respectively connected to the ejector rod fixing plate.

[0013] In the above-mentioned headlight reflector bowl push tube and push rod combined synchronous demolding mechanism, a limiting guide column is provided between the push rod fixing plate and the headlight reflector bowl forming lower mold, and a spring is sleeved on the limiting guide column. One end of the spring is against the push rod fixing plate, and the other end is against the headlight reflector bowl forming lower mold.

[0014] In the above-mentioned headlamp reflector bowl push tube and push rod combined synchronous demolding mechanism, the injection molded part includes an injection molding main board arranged above the headlamp reflector bowl molding upper mold, and the bottom of the injection molding main board is provided with an injection molding main board passing through the headlamp reflector bowl molding upper mold.

[0015] In the above-mentioned synchronous demoulding mechanism of the headlamp reflector bowl push tube and ejector rod combination, an injection runner is provided in the headlamp reflector bowl molding lower mold, and the injection main pipe is connected to the injection runner.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. During the injection molding process, the utility model brings the headlight reflector bowl molding lower mold and the headlight reflector bowl molding upper mold close to each other, so that the reflector bowl molding insert is embedded in the molding cavity and fits with the mold closing molding seat and the push-tube type auxiliary molding slider demoulding component to form a complete cavity. The molten material is injected into the cavity through the injection molding part. After the injection molding is completed, the mold is opened, and the push-tube type auxiliary molding slider demoulding component is first moved to the side away from the plastic part to open the demoulding space on both sides of the plastic part. Then, the molded plastic part is directly ejected and demoulded by the ejector rod demoulding component. The step-by-step demoulding is adopted, and the demoulding mode has a large demoulding operation space on both sides of the plastic part, ensuring that there is no collision between the two sides of the plastic part and the template during the ejection process, thereby improving the smoothness of demoulding.

[0018] 2. In the present invention, during the movement of the auxiliary forming side slider, the position limiting and anti-slip slide rail plays a role in limiting and preventing the auxiliary forming side slider from deflecting, thereby preventing the auxiliary forming side slider from angular deviation during the movement.

[0019] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a partial structural diagram of the utility model.

[0022] Figure 3 It is a partial structural diagram of another direction of the utility model.

[0023] Figure 4 It is a structural diagram of the upper die for forming the headlamp reflector bowl.

[0024] In the figure: headlight reflector bowl molding lower mold 1, headlight reflector bowl molding upper mold 2, injection molded part 3, reflector bowl molding insert 4, mold closing molding seat 5, push-tube auxiliary molding slider demoulding component 6, molding cavity 7, ejector pin demoulding part 8, auxiliary molding side slider 9, oblique push tube 10, oblique connecting rod 11, limit anti-slip part 12, limit anti-slip slide rail 13, reflector bowl molding pattern 14, middle straight ejector pin 15, side straight ejector pin 16, ejector pin fixing plate 17, limit guide column 18, spring 19, injection molding main board 20, injection molding main pipe 21, injection molding diverter channel 22. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, a headlamp reflector bowl push tube and push rod combined synchronous demolding mechanism comprises a headlamp reflector bowl molding lower mold 1 and a headlamp reflector bowl molding upper mold 2, an injection molded part 3 is provided above the headlamp reflector bowl molding upper mold 2, a reflector bowl molding insert 4 is provided at the bottom of the headlamp reflector bowl molding upper mold 2, a clamping molding seat 5 is provided in the headlamp reflector bowl molding lower mold 1, a push tube type auxiliary molding slider demolding assembly 6 that slides with the clamping molding seat 5 is provided in the clamping molding seat 5, the push tube type auxiliary molding slider demolding assembly 6 and the clamping molding seat 5 are combined to form a molding cavity 7, the molding cavity 7 corresponds to the position of the reflector bowl molding insert 4 and is matched in shape, a push rod demolding component 8 is provided below the headlamp reflector bowl molding lower mold 1, and the push rod demolding component 8 and the push tube type auxiliary molding slider demolding assembly 6 are staggered.

[0027] In this embodiment, during the injection molding process, the headlight reflector bowl molding lower mold 1 and the headlight reflector bowl molding upper mold 2 are brought close to each other, so that the reflector bowl molding insert 4 is embedded in the molding cavity 7 and fits with the mold molding seat 5 and the push-tube type auxiliary molding slider demolding component 6 to form a complete cavity, and the molten material is injected into the cavity through the injection molding part 3. After the injection molding is completed, the mold is opened, and the push-tube type auxiliary molding slider demolding component 6 is first moved away from the plastic part to open the demolding space on both sides of the plastic part, and then the molded plastic part is directly ejected and demolded by the ejector rod demolding component 8. A step-by-step demolding method is adopted, and the demolding mode has a larger demolding operation space on both sides of the plastic part to ensure that there is no collision between the two sides of the plastic part and the template during the ejection process, thereby improving the smoothness of demolding.

[0028] Combine Figure 1-4 As shown, the push-tube type auxiliary molding slider demolding assembly 6 includes two auxiliary molding side sliders 9 arranged in the mold closing molding seat 5, and an oblique push tube 10 and an oblique connecting rod 11 are provided on the outside of the auxiliary molding side slider 9. The center line of the oblique push tube 10 coincides with the center line of the oblique connecting rod 11.

[0029] Specifically, during the injection molding process, the auxiliary molding side slider 9 is used to assist in molding the structures on both sides of the plastic part. After the injection molding is completed, the mold is opened, and the oblique connecting rod 11 is moved obliquely downward, driving the oblique push tube 10 to move obliquely, thereby driving the auxiliary molding side slider 9 to move horizontally toward the outside of the molded plastic part, opening the demolding space on both sides of the plastic part, so that there is a larger demolding operation space on both sides of the demolding plastic part, ensuring that there is no collision between the two sides of the plastic part and the template during the ejection process, thereby improving the smoothness of demolding.

[0030] A position-limiting and anti-slipping piece 12 is provided in the lower die 1 for forming the headlamp reflector bowl, and the auxiliary forming side slider 9 is in sliding cooperation with the position-limiting and anti-slipping piece 12 .

[0031] In this embodiment, during the movement of the auxiliary forming side slider 9, the position limiting and anti-slipping member 12 limits and prevents the auxiliary forming side slider 9 from deflecting, thereby preventing the auxiliary forming side slider 9 from angular deviation during the movement.

[0032] Combine Figure 2 、 Figure 3 As shown, the position-limiting anti-slip component 12 includes a position-limiting anti-slip slide rail 13 provided in the headlamp reflector bowl forming lower mold 1 , and the auxiliary forming side slider 9 is slidably matched with the position-limiting anti-slip slide rail 13 .

[0033] In this embodiment, during the movement of the auxiliary forming side slider 9, the limiting anti-slip slide rail 13 plays a role in limiting and preventing the auxiliary forming side slider 9, thereby preventing the auxiliary forming side slider 9 from angular deviation during the movement.

[0034] The molding cavity 7 has a reflective bowl molding pattern 14 therein.

[0035] In this embodiment, the reflective bowl molding lines 14 are used to simultaneously mold the segmented textures of the plastic part.

[0036] Combine Figure 3 As shown, the ejector demolding part 8 includes a plurality of middle straight ejectors 15 and side straight ejectors 16 arranged below the headlamp reflector bowl forming lower mold 1, and the side straight ejectors 16 correspond to the positions of the auxiliary forming side sliders 9. A ejector fixing plate 17 is provided below the headlamp reflector bowl forming lower mold 1, and the middle straight ejectors 15 and side straight ejectors 16 are respectively connected to the ejector fixing plate 17.

[0037] In this embodiment, after the demoulding space on both sides of the plastic part is opened, the ejector fixing plate 17 is moved upward, driving the middle straight ejector 15 and the side straight ejector 16 to move synchronously, and the molded plastic part is directly ejected by the middle straight ejector 15 and the side straight ejector 16, and the ejection range and area are large.

[0038] Combine Figure 1-3As shown, a limiting guide column 18 is provided between the push rod fixing plate 17 and the headlight reflector bowl forming lower mold 1, and a spring 19 is sleeved on the limiting guide column 18. One end of the spring 19 is against the push rod fixing plate 17, and the other end is against the headlight reflector bowl forming lower mold 1.

[0039] In this embodiment, during the movement of the ejector fixing plate 17 , the limiting guide post 18 plays a limiting role, and the spring 19 can assist the ejector fixing plate 17 in automatically resetting.

[0040] Combine Figure 1-2 As shown, the injection molded part 3 includes an injection molding main board 20 arranged above the headlight reflector bowl molding upper mold 2, and an injection molding main pipe 21 is provided at the bottom of the injection molding main board 20, which passes through the headlight reflector bowl molding upper mold 2. An injection molding diverter channel 22 is provided in the headlight reflector bowl molding lower mold 1, and the injection molding main pipe 21 is connected to the injection molding diverter channel 22.

[0041] In this embodiment, during the injection molding process, the molten material is injected into the injection main pipe 21 through the injection molding main board 20 , and then is split through the injection molding branch channel 22 and flows into the two mold cavities.

[0042] The working principle of this utility model is:

[0043] During the injection molding process, the headlamp reflector bowl molding lower mold 1 and the headlamp reflector bowl molding upper mold 2 are brought close to each other, so that the reflector bowl molding insert 4 is embedded in the molding cavity 7 and fits with the mold closing molding seat 5 and the auxiliary molding side slider 9 to form a complete cavity. The molten material is injected into the injection molding main pipe 21 through the injection molding main board 20, and then diverted through the injection molding diverter 22 to flow into the two cavities. After the injection molding is completed, the mold is opened and the oblique connecting rod 11 is moved obliquely downward to drive the oblique push tube 10 to move obliquely, thereby driving the auxiliary molding side The slider 9 moves horizontally toward the outside of the molded plastic part to open the demoulding space on both sides of the plastic part, so that there is a larger demoulding operation space on both sides of the demoulding plastic part, ensuring that there is no collision between the two sides of the plastic part and the template during the ejection process, thereby improving the smoothness of demoulding. After the demoulding space on both sides of the plastic part is opened, the ejector fixing plate 17 is moved upward to drive the middle straight ejector 15 and the side straight ejector 16 to move synchronously. The molded plastic part is directly ejected by the middle straight ejector 15 and the side straight ejector 16, and the ejection range and area are large.

[0044] During the movement of the auxiliary molding side slider 9, the limiting anti-slip slide rail 13 plays a role in limiting and preventing the auxiliary molding side slider 9 from deflecting, thereby preventing the auxiliary molding side slider 9 from angular deviation during the movement process. The reflective bowl molding pattern 14 is used to synchronously mold the segmented texture of the plastic part.

[0045] During the movement of the ejector fixing plate 17 , the limiting guide post 18 plays a limiting role, and the spring 19 can assist the ejector fixing plate 17 to automatically reset.

[0046] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the spirit of the present invention.

[0047] Although this article frequently uses the terms headlamp reflector bowl molding lower mold 1, headlamp reflector bowl molding upper mold 2, injection molded part 3, reflector bowl molding insert 4, mold closing molding seat 5, push-tube auxiliary molding slider demoulding assembly 6, molding cavity 7, ejector pin demoulding part 8, auxiliary molding side slider 9, oblique push tube 10, oblique connecting rod 11, limit anti-slip component 12, limit anti-slip slide rail 13, reflector bowl molding pattern 14, middle straight ejector pin 15, side straight ejector pin 16, ejector pin fixing plate 17, limit guide post 18, spring 19, injection molding main board 20, injection molding main pipe 21, injection molding diverter 22, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention. Interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism, comprising a headlamp reflector bowl forming lower die (1) and a headlamp reflector bowl forming upper die (2), characterized in that: An injection molded part (3) is provided above the headlamp reflector bowl molding upper mold (2), a reflector bowl molding insert (4) is provided at the bottom of the headlamp reflector bowl molding upper mold (2), a clamping molding seat (5) is provided in the headlamp reflector bowl molding lower mold (1), a push-tube type auxiliary molding slider demoulding assembly (6) that is slidably matched with the clamping molding seat (5) is provided in the clamping molding seat (5), the push-tube type auxiliary molding slider demoulding assembly (6) and the clamping molding seat (5) are combined to form a molding cavity (7), the molding cavity (7) corresponds to the position of the reflector bowl molding insert (4) and has a shape that matches the position of the reflector bowl molding insert (4), and a push rod demoulding member (8) is provided below the headlamp reflector bowl molding lower mold (1), and the push rod demoulding member (8) and the push-tube type auxiliary molding slider demoulding assembly (6) are staggered.

2. The headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism according to claim 1, characterized in that: The push-tube type auxiliary molding slider demoulding assembly (6) comprises two auxiliary molding side sliders (9) arranged in a mold-clamping molding seat (5), an oblique push tube (10) and an oblique connecting rod (11) are provided on the outside of the auxiliary molding side sliders (9), and the center line of the oblique push tube (10) coincides with the center line of the oblique connecting rod (11).

3. The headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism according to claim 2, characterized in that: A position-limiting anti-slip component (12) is provided in the headlamp reflector bowl forming lower die (1), and the auxiliary forming side slider (9) is slidably matched with the position-limiting anti-slip component (12).

4. The headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism according to claim 3, characterized in that: The position-limiting anti-slip component (12) comprises a position-limiting anti-slip slide rail (13) arranged in the headlamp reflector bowl forming lower die (1), and the auxiliary forming side slider (9) is slidably matched with the position-limiting anti-slip slide rail (13).

5. The headlamp reflector bowl push tube and push rod combined synchronous demoulding mechanism according to claim 4, characterized in that: The molding cavity (7) has a reflective bowl molding pattern (14).

6. The headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism according to claim 5, characterized in that: The ejector stripping member (8) comprises a plurality of middle straight ejectors (15) and side straight ejectors (16) arranged below the headlamp reflector bowl forming lower die (1), wherein the side straight ejectors (16) correspond to the positions of the auxiliary forming side sliders (9).

7. The headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism according to claim 6, characterized in that: A push rod fixing plate (17) is provided below the headlamp reflector bowl forming lower die (1), and the middle straight push rod (15) and the side straight push rods (16) are respectively connected to the push rod fixing plate (17).

8. The headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism according to claim 7, characterized in that: A limiting guide column (18) is provided between the push rod fixing plate (17) and the headlamp reflector bowl forming lower die (1), and a spring (19) is sleeved on the limiting guide column (18). One end of the spring (19) abuts against the push rod fixing plate (17), and the other end abuts against the headlamp reflector bowl forming lower die (1).

9. The headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism according to claim 8, characterized in that: The injection molded part (3) comprises an injection molded main plate (20) arranged above the headlamp reflector bowl forming upper die (2), and an injection molded main plate (21) passing through the headlamp reflector bowl forming upper die (2) is provided at the bottom of the injection molded main plate (20).

10. The headlamp reflector bowl push tube and ejector rod combined synchronous demoulding mechanism according to claim 9, characterized in that: An injection molding runner (22) is provided in the headlamp reflector bowl molding lower mold (1), and the injection molding main pipe (21) is connected to the injection molding runner (22).

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