Double-color mold for highlight spray-free automobile lamp ornament blade

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a double-color mold for a highlight spraying-free automobile lamp ornament blade. The automobile lamp ornament forming die comprises an automobile lamp ornament forming lower die and an automobile lamp ornament forming upper die. In the injection molding process, molten materials are shunted through the shunting injection molding insert panel and then injected into the cavity, the combined embedded auxiliary molding ejection structure can perform auxiliary molding on the bottom of a plastic part, the mold is opened after injection molding is completed, the combined embedded auxiliary molding ejection structure is moved, and the injection molding is completed. A molded plastic part is ejected and demolded through the combined embedded auxiliary molding ejection structure, so that the plastic part is separated from the decorative part molding lower part of the automobile lamp decorative part molding lower mold, and then the molded plastic part is ejected in cooperation with the ejection rod, so that the plastic part can be prevented from being adhered to the mold during ejection, the ejection smoothness is ensured, and the production efficiency is improved. Meanwhile, the internal structure is compact and reasonable, and the in-mold space can be effectively and fully utilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a high-gloss spray-free two-color blade mold for automotive lamp trim parts. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used when mass-producing some parts with complex shapes. Specifically, it means injecting the heat-melted plastic into the mold cavity under high pressure by an injection molding machine, and after cooling and solidifying, a formed product is obtained. Currently, the trim parts of automotive lamps are injection-molded using injection molds. Since the trim parts of automotive lamps need to be assembled in accordance with the shape of the lamps, the trim parts of automotive lamps will have some hollow structures. After injection molding, when the plastic part is ejected, it is easy to adhere to the mold, resulting in unsmooth ejection. Adding an additional anti-adhesion ejection structure requires more internal space in the mold, which is rather troublesome. Therefore, there is an urgent need to design a high-gloss spray-free two-color blade mold for automotive lamp trim parts that can overcome the above defects.

[0003] In order to overcome the deficiencies of the prior art, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a hot-press injection mold for producing automotive interior parts [Application No.: 202022307318.8], which includes a box body, as well as heat dissipation holes, vertical pipes, fans, and protective nets provided on the box body. A lamp bracket and a side seat bracket are arranged on the side end face of the box body where the heat dissipation holes are located. A black light lamp is installed on the lamp bracket, an insect attracting hole is opened on the lamp bracket, a suction fan is installed on the side seat bracket, an insect-proof partition net is installed on the air suction end face of the suction fan, an air vent hole is arranged at the lower end of the side seat bracket, and a sealing cover body is sleeved outside the protective net. The sealing cover body is composed of a cover body, a hook ring, a sealing pad, an annular block, and a suction cup. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-gloss spray-free two-color blade mold for automotive lamp trim parts for the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-gloss spray-free automotive lamp trim blade two-color mold, comprising a lower mold for forming an automotive lamp trim and an upper mold for forming an automotive lamp trim. A split injection molding panel is provided between the lower mold for forming an automotive lamp trim and the upper mold for forming an automotive lamp trim. The bottom of the split injection molding panel is provided with an upper part for forming the trim. The lower mold for forming an automotive lamp trim is provided with a lower part for forming the trim. The lower part for forming the trim corresponds to the upper part for forming the trim in position and is matched in shape. Two combined embedded auxiliary forming and ejecting structures symmetrically arranged along the center line of the lower mold for forming an automotive lamp trim are provided in the lower part for forming the trim. The combined embedded auxiliary forming and ejecting structure is slidably matched with the lower mold for forming an automotive lamp trim.

[0007] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, the combined embedded auxiliary forming and ejecting structure includes a middle auxiliary forming slide seat and a side auxiliary forming slide seat arranged in the lower part for forming the trim. The middle auxiliary forming slide seat and the side auxiliary forming slide seat respectively match the shape of the lower part for forming the trim, and the middle auxiliary forming slide seat and the side auxiliary forming slide seat are arranged alternately.

[0008] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, a buckle forming groove is provided at the top of the side auxiliary forming slide seat, and a buckle hole forming protrusion is provided in the buckle forming groove.

[0009] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, an injection molding runner is provided in the middle auxiliary forming slide seat, and the injection molding runner corresponds to the position of the lower part for forming the trim.

[0010] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, a lower template is provided below the lower mold for forming an automotive lamp trim, and a sliding connecting member extending into the lower template is provided at the bottom of the middle auxiliary forming slide seat.

[0011] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, the sliding connecting member includes a connecting slide table provided at the bottom of the middle auxiliary forming slide seat. A bottom sliding part is provided at the bottom of the connecting slide table, and the bottom sliding part is slidably matched with the connecting slide table.

[0012] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, the bottom sliding part includes a bottom slide seat provided in the lower template. Two side limiting strips symmetrically arranged along the center line of the bottom slide seat are provided on the bottom slide seat. Side limiting grooves are provided on both sides of the connecting slide table, and the side limiting strips are slidably matched with the side limiting grooves.

[0013] In the above-mentioned high-gloss spray-free automotive lamp trim blade two-color mold, the top of the bottom slide seat has an inclined surface, the bottom of the connecting slide table has an inclined surface, and the connecting slide table is slidably matched with the bottom slide seat.

[0014] In the above-mentioned two-color die for high-gloss spray-free automotive lamp trim blades, an oil cylinder is provided on the side of the lower template, and the power shaft of the oil cylinder is connected to the bottom slide.

[0015] In the above-mentioned two-color die for high-gloss spray-free automotive lamp trim blades, a base plate is provided at the bottom of the lower template.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows:

[0017] 1. During the injection molding process of the present utility model, the lower mold for forming automotive lamp trim and the upper mold for forming automotive lamp trim are brought closer to each other, so that the lower part for forming the trim and the upper part for forming the trim are fitted together to form two complete cavities. The molten material is shunted through the shunt injection molding panel and then injected into the cavities. The combined embedded auxiliary forming and ejecting structure can assist in forming the bottom of the plastic part. After the injection molding is completed, the mold is opened, and the combined embedded auxiliary forming and ejecting structure is moved. The formed plastic part is ejected and demolded through the combined embedded auxiliary forming and ejecting structure, so that the plastic part is separated from the lower part for forming the trim of the lower mold for automotive lamp trim. Then, the formed plastic part is ejected with the cooperation of the ejector rod. This method can avoid the adhesion between the plastic part and the mold during ejection, ensure the smoothness of ejection, and at the same time, the internal structure is compact and reasonable, and the space inside the mold can be effectively and fully utilized.

[0018] 2. During the injection molding of the present utility model, the snap forming groove can simultaneously form the snap main body structure of the plastic part, and the snap hole forming protrusion is used to simultaneously form the snap hole of the snap structure.

[0019] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. Brief Description of the Drawings

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

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

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

[0023] Figure 4 It is a schematic partial structural diagram of the present utility model in another direction.

[0024] Figure 5 It is a schematic structural diagram of the middle auxiliary forming slide.

[0025] Figure 6 It is a schematic structural diagram of the shunt injection molding panel.

[0026] In the figure: the lower die 1 for forming automotive lamp trim parts, the upper die 2 for forming automotive lamp trim parts, the split injection molding panel 3, the upper part 4 of the trim part forming, the lower part 5 of the trim part forming, the combined embedded auxiliary forming ejection structure 6, the middle auxiliary forming slide 7, the side auxiliary forming slide 8, the buckle forming groove 9, the buckle hole forming protrusion 10, the injection runner 11, the lower template 12, the sliding connecting piece 13, the connecting slide 14, the bottom sliding part 15, the bottom slide 16, the side limiting strip 17, the side limiting groove 18, the oil cylinder 19, the substrate 20. Specific implementation mode

[0027] The present utility model will be further described below in conjunction with the accompanying drawings.

[0028] As Figure 1-6 shown, a high-gloss spray-free automotive lamp trim part blade two-color mold includes a lower die 1 for forming automotive lamp trim parts and an upper die 2 for forming automotive lamp trim parts. A split injection molding panel 3 is arranged between the lower die 1 for forming automotive lamp trim parts and the upper die 2 for forming automotive lamp trim parts. The bottom of the split injection molding panel 3 is provided with an upper part 4 of the trim part forming. The lower die 1 for forming automotive lamp trim parts is internally provided with a lower part 5 of the trim part forming. The lower part 5 of the trim part forming corresponds to the upper part 4 of the trim part forming in position and is matched in shape. The lower part 5 of the trim part forming is internally provided with two combined embedded auxiliary forming ejection structures 6 that are symmetrically arranged along the center line of the lower die 1 for forming automotive lamp trim parts. The combined embedded auxiliary forming ejection structure 6 is in sliding fit with the lower die 1 for forming automotive lamp trim parts.

[0029] In this embodiment, during the injection molding process, the lower die 1 for forming automotive lamp trim parts and the upper die 2 for forming automotive lamp trim parts are moved closer to each other, so that the lower part 5 of the trim part forming and the upper part 4 of the trim part forming are attached to form two complete cavities. The molten material is injected into the cavities after being split by the split injection molding panel 3. The combined embedded auxiliary forming ejection structure 6 can assist in forming the bottom of the plastic part. After the injection molding is completed, the mold is opened, the combined embedded auxiliary forming ejection structure 6 is moved, and the formed plastic part is ejected and demolded through the combined embedded auxiliary forming ejection structure 6, so that the plastic part is separated from the lower part 5 of the trim part forming of the lower die 1 for forming automotive lamp trim parts, and then the formed plastic part is ejected in cooperation with the ejector rod. This method can avoid the adhesion between the plastic part and the mold during ejection, ensure the smoothness of ejection, and at the same time, the internal structure is compact and reasonable, and the mold space can be effectively and fully utilized.

[0030] Combined with Figure 1-6As shown, the combined embedded auxiliary forming and ejecting structure 6 includes a middle auxiliary forming slide 7 and a side auxiliary forming slide 8 arranged inside the lower part 5 of the trim part forming. The middle auxiliary forming slide 7 and the side auxiliary forming slide 8 respectively match the shape of the lower part 5 of the trim part forming, and the middle auxiliary forming slide 7 and the side auxiliary forming slide 8 are arranged staggeredly.

[0031] Specifically, during the injection molding process, the middle auxiliary forming slide 7 and the side auxiliary forming slide 8 can assist in forming the middle and side structures of the bottom side of the plastic part. After the injection molding is completed, the middle auxiliary forming slide 7 and the side auxiliary forming slide 8 are displaced to eject and demold the formed plastic part, so that the plastic part is separated from the lower part 5 of the trim part forming of the lower mold 1 of the automotive lamp trim part. Then, in cooperation with the ejector rod, the formed plastic part is ejected. This method can avoid the adhesion of the plastic part to the mold during ejection, ensure the smoothness of ejection, and at the same time, the internal structure is compact and reasonable, and the in-mold space can be effectively and fully utilized.

[0032] A buckle forming groove 9 is provided at the top of the side auxiliary forming slide 8, and a buckle hole forming protrusion 10 is provided in the buckle forming groove 9.

[0033] In this embodiment, during injection molding, the buckle forming groove 9 can simultaneously form the buckle main body structure of the plastic part, and the buckle hole forming protrusion 10 is used to simultaneously form the buckle hole of the buckle structure.

[0034] Combined with Figure 4 、 Figure 5 As shown, an injection molding runner 11 is provided inside the middle auxiliary forming slide 7, and the injection molding runner 11 corresponds to the position of the lower part 5 of the trim part forming.

[0035] In this embodiment, during injection molding, the molten material is shunted around the cavity through the injection molding runner 11 to improve the injection molding rate.

[0036] A lower template 12 is provided below the lower mold 1 of the automotive lamp trim part, and a sliding connecting member 13 extending into the lower template 12 is provided at the bottom of the middle auxiliary forming slide 7.

[0037] In this embodiment, the sliding connecting member 13 is connected to the middle auxiliary forming slide 7. The middle auxiliary forming slide 7 can be driven to move obliquely upward through the sliding connecting member 13, so that the middle auxiliary forming slide 7 is separated from the formed plastic part, preparing for the next demolding.

[0038] Combined with Figure 4As shown, the sliding connector 13 includes a connecting slide table 14 provided at the bottom of the middle auxiliary forming slide base 7. A bottom sliding part 15 is provided at the bottom of the connecting slide table 14. The bottom sliding part 15 is slidably engaged with the connecting slide table 14. The bottom sliding part 15 includes a bottom slide base 16 provided in the lower template 12. Two side limiting strips 17 symmetrically arranged along the center line of the bottom slide base 16 are provided on the bottom slide base 16. Side limiting grooves 18 are provided on both sides of the connecting slide table 14. The side limiting strips 17 are slidably engaged with the side limiting grooves 18. The top of the bottom slide base 16 has an inclined surface, and the bottom of the connecting slide table 14 has an inclined surface. The connecting slide table 14 is slidably engaged with the bottom slide base 16. An oil cylinder 19 is provided on the side of the lower template 12. The power shaft of the oil cylinder 19 is connected to the bottom slide base 16.

[0039] In this embodiment, when it is necessary to move the middle auxiliary forming slide base 7, the oil cylinder 19 is started. The bottom slide base 16 is driven to move through the power shaft of the oil cylinder 19. Through the cooperation between the inclined surface at the top of the bottom slide base 16 and the inclined surface at the bottom of the connecting slide table 14, the middle auxiliary forming slide base 7 moves obliquely upward to eject and demold the middle part of the plastic part. The side limiting strips 17 are slidably engaged with the side limiting grooves 18, and the two cooperate to form a complete cavity to ensure the accuracy of the displacement.

[0040] Combined with Figure 1-2 As shown, a base plate 20 is provided at the bottom of the lower template 12.

[0041] In this embodiment, the base plate 20 is used to fix the lower template 12.

[0042] The working principle of the present utility model is:

[0043] During the injection molding process, the automotive lamp trim forming lower mold 1 and the automotive lamp trim forming upper mold 2 are moved closer to each other, so that the lower part 5 of the trim forming and the upper part 4 of the trim forming are attached to form two complete cavities. The molten material is branched through the split injection molding panel 3 and then branched around the cavity through the injection molding runner 11 and injected into the cavity to improve the injection molding rate. The middle auxiliary forming slide base 7 and the side auxiliary forming slide base 8 can assist in forming the middle and side structures of the bottom side of the plastic part. After the injection molding is completed, the middle auxiliary forming slide base 7 and the side auxiliary forming slide base 8 are misaligned and moved to eject and demold the formed plastic part, so that the plastic part is separated from the lower part 5 of the trim forming of the automotive lamp trim forming lower mold 1, and then the formed plastic part is ejected by cooperating with the ejector rod. This method can avoid the adhesion between the plastic part and the mold during ejection, ensure the smoothness of ejection, and at the same time, the internal structure is compact and reasonable, and the in-mold space can be effectively and fully utilized.

[0044] During injection molding, the snap forming groove 9 can simultaneously form the snap main body structure of the plastic part, and the snap hole forming protrusion 10 is used to simultaneously form the snap hole of the snap structure.

[0045] When it is necessary to move the middle auxiliary forming slide 7, the oil cylinder 19 is started. The power shaft of the oil cylinder 19 drives the bottom slide 16 to move. Through the cooperation between the top inclined surface of the bottom slide 16 and the bottom inclined surface of the connecting slide 14, the middle auxiliary forming slide 7 moves obliquely upward to eject and demold the middle part of the plastic part. The side limiting strip 17 and the side limiting groove 18 are in sliding fit with each other, and the two cooperate to form a complete cavity to ensure the accuracy of the displacement. The base plate 20 is used to fix the lower template 12.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention.

[0047] Although terms such as the lower mold 1 for forming automotive lamp trim parts, the upper mold 2 for forming automotive lamp trim parts, the split injection molding inlay panel 3, the upper part 4 for forming trim parts, the lower part 5 for forming trim parts, the combined embedded auxiliary forming and ejecting structure 6, the middle auxiliary forming slide 7, the side auxiliary forming slide 8, the snap forming groove 9, the snap hole forming protrusion 10, the injection runner 11, the lower template 12, the sliding connection member 13, the connecting slide 14, the bottom sliding part 15, the bottom slide 16, the side limiting strip 17, the side limiting groove 18, the oil cylinder 19, the base plate 20, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention, and interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A high-gloss spray-free automobile lamp trim blade two-color mold, comprising an automobile lamp trim molding lower mold (1) and an automobile lamp trim molding upper mold (2), characterized in that: A split injection molding panel (3) is provided between the automobile lamp ornament molding lower mold (1) and the automobile lamp ornament molding upper mold (2); a decorative molding upper portion (4) is provided at the bottom of the split injection molding panel (3); a decorative molding lower portion (5) is provided inside the automobile lamp ornament molding lower mold (1); the decorative molding lower portion (5) corresponds to the position of the decorative molding upper portion (4) and matches the shape; two combined embedded auxiliary molding ejection structures (6) symmetrical along the center line of the automobile lamp ornament molding lower mold (1) are provided inside the decorative molding lower portion (5); the combined embedded auxiliary molding ejection structures (6) are slidably matched with the automobile lamp ornament molding lower mold (1).

2. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 1 is characterized in that: The combined embedded auxiliary molding ejection structure (6) comprises a middle auxiliary molding slide (7) and a side auxiliary molding slide (8) arranged in the lower molding part (5) of the decorative part, wherein the middle auxiliary molding slide (7) and the side auxiliary molding slide (8) are respectively adapted to the shape of the lower molding part (5) of the decorative part, and the middle auxiliary molding slide (7) and the side auxiliary molding slide (8) are arranged in an alternating manner.

3. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 2 is characterized in that: A buckle forming groove (9) is provided on the top of the side auxiliary forming slide seat (8), and a buckle hole forming protrusion (10) is provided in the buckle forming groove (9).

4. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 3 is characterized in that: An injection molding flow channel (11) is provided in the middle auxiliary molding slide seat (7), and the injection molding flow channel (11) corresponds to the position of the molding lower part (5) of the decorative part.

5. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 4 is characterized in that: A lower mold plate (12) is provided below the lower mold plate (1) for molding the automobile lamp trim, and a sliding connection piece (13) extending into the lower mold plate (12) is provided at the bottom of the middle auxiliary molding slide seat (7).

6. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 5 is characterized in that: The sliding connection member (13) comprises a connecting slide (14) arranged at the bottom of the middle auxiliary molding slide seat (7), and a bottom sliding portion (15) is provided at the bottom of the connecting slide (14), and the bottom sliding portion (15) is slidably matched with the connecting slide (14).

7. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 6 is characterized in that: The bottom sliding part (15) comprises a bottom sliding seat (16) arranged in the lower template (12), the bottom sliding seat (16) is provided with two side limit strips (17) symmetrical along the center line of the bottom sliding seat (16), and the connecting slide (14) is provided with side limit grooves (18) on both sides, and the side limit strips (17) are slidably matched with the side limit grooves (18).

8. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 7 is characterized in that: The top of the bottom slide seat (16) has an inclined surface, the bottom of the connecting slide platform (14) has an inclined surface, and the connecting slide platform (14) and the bottom slide seat (16) are slidably matched.

9. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 8, characterized in that: The side of the lower template (12) is provided with an oil cylinder (19), and the power shaft of the oil cylinder (19) is connected to the bottom slide seat (16).

10. The high-gloss spray-free automobile lamp trim blade two-color mold according to claim 9, characterized in that: A base plate (20) is provided at the bottom of the lower template (12).

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